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592465215132411b6fea23e1fa17e7a7ed90c3eb
bgfx/src/renderer_gl.cpp
Sandy Carter 5924652151 rebind instance data buffer if index offset changes 
Fix case of drawing different offsets of indices of same vertex buffer
using same instance data.

This can happen in the case of conditionally drawing subsets of vertex
buffer stored in different offsets of the same index buffer while re-using
non-transient instance buffers.
2020-02-04 07:38:36 -08:00

7774 lines
235 KiB
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/*
* Copyright 2011-2020 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include "bgfx_p.h"
#if (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
# include "renderer_gl.h"
# include <bx/timer.h>
# include <bx/uint32_t.h>
namespace bgfx { namespace gl
{
static char s_viewName[BGFX_CONFIG_MAX_VIEWS][BGFX_CONFIG_MAX_VIEW_NAME];
inline void setViewType(ViewId _view, const bx::StringView _str)
{
if (BX_ENABLED(BGFX_CONFIG_DEBUG_ANNOTATION || BGFX_CONFIG_PROFILER) )
{
bx::memCopy(&s_viewName[_view][3], _str.getPtr(), _str.getLength() );
}
}
struct PrimInfo
{
GLenum m_type;
uint32_t m_min;
uint32_t m_div;
uint32_t m_sub;
};
static const PrimInfo s_primInfo[] =
{
{ GL_TRIANGLES, 3, 3, 0 },
{ GL_TRIANGLE_STRIP, 3, 1, 2 },
{ GL_LINES, 2, 2, 0 },
{ GL_LINE_STRIP, 2, 1, 1 },
{ GL_POINTS, 1, 1, 0 },
{ GL_ZERO, 0, 0, 0 },
};
BX_STATIC_ASSERT(Topology::Count == BX_COUNTOF(s_primInfo)-1);
static const char* s_attribName[] =
{
"a_position",
"a_normal",
"a_tangent",
"a_bitangent",
"a_color0",
"a_color1",
"a_color2",
"a_color3",
"a_indices",
"a_weight",
"a_texcoord0",
"a_texcoord1",
"a_texcoord2",
"a_texcoord3",
"a_texcoord4",
"a_texcoord5",
"a_texcoord6",
"a_texcoord7",
};
BX_STATIC_ASSERT(Attrib::Count == BX_COUNTOF(s_attribName) );
static const char* s_instanceDataName[] =
{
"i_data0",
"i_data1",
"i_data2",
"i_data3",
"i_data4",
};
BX_STATIC_ASSERT(BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT == BX_COUNTOF(s_instanceDataName) );
static const GLenum s_access[] =
{
GL_READ_ONLY,
GL_WRITE_ONLY,
GL_READ_WRITE,
};
BX_STATIC_ASSERT(Access::Count == BX_COUNTOF(s_access) );
static const GLenum s_attribType[] =
{
GL_UNSIGNED_BYTE, // Uint8
GL_UNSIGNED_INT_10_10_10_2, // Uint10
GL_SHORT, // Int16
GL_HALF_FLOAT, // Half
GL_FLOAT, // Float
};
BX_STATIC_ASSERT(AttribType::Count == BX_COUNTOF(s_attribType) );
struct Blend
{
GLenum m_src;
GLenum m_dst;
bool m_factor;
};
static const Blend s_blendFactor[] =
{
{ 0, 0, false }, // ignored
{ GL_ZERO, GL_ZERO, false }, // ZERO
{ GL_ONE, GL_ONE, false }, // ONE
{ GL_SRC_COLOR, GL_SRC_COLOR, false }, // SRC_COLOR
{ GL_ONE_MINUS_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, false }, // INV_SRC_COLOR
{ GL_SRC_ALPHA, GL_SRC_ALPHA, false }, // SRC_ALPHA
{ GL_ONE_MINUS_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, false }, // INV_SRC_ALPHA
{ GL_DST_ALPHA, GL_DST_ALPHA, false }, // DST_ALPHA
{ GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, false }, // INV_DST_ALPHA
{ GL_DST_COLOR, GL_DST_COLOR, false }, // DST_COLOR
{ GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_DST_COLOR, false }, // INV_DST_COLOR
{ GL_SRC_ALPHA_SATURATE, GL_ONE, false }, // SRC_ALPHA_SAT
{ GL_CONSTANT_COLOR, GL_CONSTANT_COLOR, true }, // FACTOR
{ GL_ONE_MINUS_CONSTANT_COLOR, GL_ONE_MINUS_CONSTANT_COLOR, true }, // INV_FACTOR
};
static const GLenum s_blendEquation[] =
{
GL_FUNC_ADD,
GL_FUNC_SUBTRACT,
GL_FUNC_REVERSE_SUBTRACT,
GL_MIN,
GL_MAX,
};
static const GLenum s_cmpFunc[] =
{
0, // ignored
GL_LESS,
GL_LEQUAL,
GL_EQUAL,
GL_GEQUAL,
GL_GREATER,
GL_NOTEQUAL,
GL_NEVER,
GL_ALWAYS,
};
static const GLenum s_stencilOp[] =
{
GL_ZERO,
GL_KEEP,
GL_REPLACE,
GL_INCR_WRAP,
GL_INCR,
GL_DECR_WRAP,
GL_DECR,
GL_INVERT,
};
static const GLenum s_stencilFace[] =
{
GL_FRONT_AND_BACK,
GL_FRONT,
GL_BACK,
};
static GLenum s_textureAddress[] =
{
GL_REPEAT,
GL_MIRRORED_REPEAT,
GL_CLAMP_TO_EDGE,
GL_CLAMP_TO_BORDER,
};
static const GLenum s_textureFilterMag[] =
{
GL_LINEAR,
GL_NEAREST,
GL_LINEAR,
};
static const GLenum s_textureFilterMin[][3] =
{
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
{ GL_NEAREST, GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST_MIPMAP_NEAREST },
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
};
struct TextureFormatInfo
{
GLenum m_internalFmt;
GLenum m_internalFmtSrgb;
GLenum m_fmt;
GLenum m_fmtSrgb;
GLenum m_type;
bool m_supported;
};
static TextureFormatInfo s_textureFormat[] =
{
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, false }, // BC1
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, false }, // BC2
{ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_ZERO, false }, // BC3
{ GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, false }, // BC4
{ GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, false }, // BC5
{ GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, false }, // BC6H
{ GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_ZERO, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_ZERO, false }, // BC7
{ GL_ETC1_RGB8_OES, GL_ZERO, GL_ETC1_RGB8_OES, GL_ETC1_RGB8_OES, GL_ZERO, false }, // ETC1
{ GL_COMPRESSED_RGB8_ETC2, GL_ZERO, GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_ZERO, false }, // ETC2
{ GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_ZERO, false }, // ETC2A
{ GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_ZERO, false }, // ETC2A1
{ GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_ZERO, false }, // PTC12
{ GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_ZERO, false }, // PTC14
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_ZERO, false }, // PTC12A
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_ZERO, false }, // PTC14A
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, false }, // PTC22
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, false }, // PTC24
{ GL_ATC_RGB_AMD, GL_ZERO, GL_ATC_RGB_AMD, GL_ATC_RGB_AMD, GL_ZERO, false }, // ATC
{ GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, false }, // ATCE
{ GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, false }, // ATCI
{ GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_SRGB8_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_ZERO, false }, // ASTC4x4
{ GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_SRGB8_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_ZERO, false }, // ASTC5x5
{ GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_SRGB8_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_ZERO, false }, // ASTC6x6
{ GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_COMPRESSED_SRGB8_ASTC_8x5_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_ZERO, false }, // ASTC8x5
{ GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_SRGB8_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_ZERO, false }, // ASTC8x6
{ GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_SRGB8_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_ZERO, false }, // ASTC10x5
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // Unknown
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // R1
{ GL_ALPHA, GL_ZERO, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, false }, // A8
{ GL_R8, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_BYTE, false }, // R8
{ GL_R8I, GL_ZERO, GL_RED, GL_RED, GL_BYTE, false }, // R8I
{ GL_R8UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_BYTE, false }, // R8U
{ GL_R8_SNORM, GL_ZERO, GL_RED, GL_RED, GL_BYTE, false }, // R8S
{ GL_R16, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_SHORT, false }, // R16
{ GL_R16I, GL_ZERO, GL_RED, GL_RED, GL_SHORT, false }, // R16I
{ GL_R16UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_SHORT, false }, // R16U
{ GL_R16F, GL_ZERO, GL_RED, GL_RED, GL_HALF_FLOAT, false }, // R16F
{ GL_R16_SNORM, GL_ZERO, GL_RED, GL_RED, GL_SHORT, false }, // R16S
{ GL_R32I, GL_ZERO, GL_RED, GL_RED, GL_INT, false }, // R32I
{ GL_R32UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_INT, false }, // R32U
{ GL_R32F, GL_ZERO, GL_RED, GL_RED, GL_FLOAT, false }, // R32F
{ GL_RG8, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_BYTE, false }, // RG8
{ GL_RG8I, GL_ZERO, GL_RG, GL_RG, GL_BYTE, false }, // RG8I
{ GL_RG8UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_BYTE, false }, // RG8U
{ GL_RG8_SNORM, GL_ZERO, GL_RG, GL_RG, GL_BYTE, false }, // RG8S
{ GL_RG16, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_SHORT, false }, // RG16
{ GL_RG16I, GL_ZERO, GL_RG, GL_RG, GL_SHORT, false }, // RG16I
{ GL_RG16UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_SHORT, false }, // RG16U
{ GL_RG16F, GL_ZERO, GL_RG, GL_RG, GL_FLOAT, false }, // RG16F
{ GL_RG16_SNORM, GL_ZERO, GL_RG, GL_RG, GL_SHORT, false }, // RG16S
{ GL_RG32I, GL_ZERO, GL_RG, GL_RG, GL_INT, false }, // RG32I
{ GL_RG32UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_INT, false }, // RG32U
{ GL_RG32F, GL_ZERO, GL_RG, GL_RG, GL_FLOAT, false }, // RG32F
{ GL_RGB8, GL_SRGB8, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, false }, // RGB8
{ GL_RGB8I, GL_ZERO, GL_RGB, GL_RGB, GL_BYTE, false }, // RGB8I
{ GL_RGB8UI, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, false }, // RGB8U
{ GL_RGB8_SNORM, GL_ZERO, GL_RGB, GL_RGB, GL_BYTE, false }, // RGB8S
{ GL_RGB9_E5, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, false }, // RGB9E5F
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_BGRA, GL_BGRA, GL_UNSIGNED_BYTE, false }, // BGRA8
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, false }, // RGBA8
{ GL_RGBA8I, GL_ZERO, GL_RGBA, GL_RGBA, GL_BYTE, false }, // RGBA8I
{ GL_RGBA8UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, false }, // RGBA8U
{ GL_RGBA8_SNORM, GL_ZERO, GL_RGBA, GL_RGBA, GL_BYTE, false }, // RGBA8S
{ GL_RGBA16, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT, false }, // RGBA16
{ GL_RGBA16I, GL_ZERO, GL_RGBA, GL_RGBA, GL_SHORT, false }, // RGBA16I
{ GL_RGBA16UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT, false }, // RGBA16U
{ GL_RGBA16F, GL_ZERO, GL_RGBA, GL_RGBA, GL_HALF_FLOAT, false }, // RGBA16F
{ GL_RGBA16_SNORM, GL_ZERO, GL_RGBA, GL_RGBA, GL_SHORT, false }, // RGBA16S
{ GL_RGBA32I, GL_ZERO, GL_RGBA, GL_RGBA, GL_INT, false }, // RGBA32I
{ GL_RGBA32UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_INT, false }, // RGBA32U
{ GL_RGBA32F, GL_ZERO, GL_RGBA, GL_RGBA, GL_FLOAT, false }, // RGBA32F
{ GL_RGB565, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, false }, // R5G6B5
{ GL_RGBA4, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV, false }, // RGBA4
{ GL_RGB5_A1, GL_ZERO, GL_BGRA, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, false }, // RGB5A1
{ GL_RGB10_A2, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, false }, // RGB10A2
{ GL_R11F_G11F_B10F, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, false }, // RG11B10F
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // UnknownDepth
{ GL_DEPTH_COMPONENT16, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, false }, // D16
{ GL_DEPTH_COMPONENT24, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false }, // D24
{ GL_DEPTH24_STENCIL8, GL_ZERO, GL_DEPTH_STENCIL, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, false }, // D24S8
{ GL_DEPTH_COMPONENT32, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false }, // D32
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D16F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D24F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D32F
{ GL_STENCIL_INDEX8, GL_ZERO, GL_STENCIL_INDEX, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, false }, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_textureFormat) );
static bool s_textureFilter[TextureFormat::Count+1];
static GLenum s_rboFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC10x5
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8U
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // R5G6B5
GL_RGBA4, // RGBA4
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_DEPTH_COMPONENT16, // D16
GL_DEPTH_COMPONENT24, // D24
GL_DEPTH24_STENCIL8, // D24S8
GL_DEPTH_COMPONENT32, // D32
GL_DEPTH_COMPONENT32F, // D16F
GL_DEPTH_COMPONENT32F, // D24F
GL_DEPTH_COMPONENT32F, // D32F
GL_STENCIL_INDEX8, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_rboFormat) );
static GLenum s_imageFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC10x5
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8UI
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // R5G6B5
GL_RGBA4, // RGBA4
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_ZERO, // D16
GL_ZERO, // D24
GL_ZERO, // D24S8
GL_ZERO, // D32
GL_ZERO, // D16F
GL_ZERO, // D24F
GL_ZERO, // D32F
GL_ZERO, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_imageFormat) );
struct Extension
{
enum Enum
{
AMD_conservative_depth,
AMD_multi_draw_indirect,
ANGLE_depth_texture,
ANGLE_framebuffer_blit,
ANGLE_framebuffer_multisample,
ANGLE_instanced_arrays,
ANGLE_texture_compression_dxt1,
ANGLE_texture_compression_dxt3,
ANGLE_texture_compression_dxt5,
ANGLE_timer_query,
ANGLE_translated_shader_source,
APPLE_texture_format_BGRA8888,
APPLE_texture_max_level,
ARB_clip_control,
ARB_compute_shader,
ARB_conservative_depth,
ARB_copy_image,
ARB_debug_label,
ARB_debug_output,
ARB_depth_buffer_float,
ARB_depth_clamp,
ARB_draw_buffers_blend,
ARB_draw_indirect,
ARB_draw_instanced,
ARB_ES3_compatibility,
ARB_framebuffer_object,
ARB_framebuffer_sRGB,
ARB_get_program_binary,
ARB_half_float_pixel,
ARB_half_float_vertex,
ARB_instanced_arrays,
ARB_internalformat_query,
ARB_internalformat_query2,
ARB_invalidate_subdata,
ARB_map_buffer_range,
ARB_multi_draw_indirect,
ARB_multisample,
ARB_occlusion_query,
ARB_occlusion_query2,
ARB_program_interface_query,
ARB_sampler_objects,
ARB_seamless_cube_map,
ARB_shader_bit_encoding,
ARB_shader_image_load_store,
ARB_shader_storage_buffer_object,
ARB_shader_texture_lod,
ARB_texture_compression_bptc,
ARB_texture_compression_rgtc,
ARB_texture_cube_map_array,
ARB_texture_float,
ARB_texture_multisample,
ARB_texture_rg,
ARB_texture_rgb10_a2ui,
ARB_texture_stencil8,
ARB_texture_storage,
ARB_texture_swizzle,
ARB_timer_query,
ARB_uniform_buffer_object,
ARB_vertex_array_object,
ARB_vertex_type_2_10_10_10_rev,
ATI_meminfo,
CHROMIUM_color_buffer_float_rgb,
CHROMIUM_color_buffer_float_rgba,
CHROMIUM_depth_texture,
CHROMIUM_framebuffer_multisample,
CHROMIUM_texture_compression_dxt3,
CHROMIUM_texture_compression_dxt5,
EXT_bgra,
EXT_blend_color,
EXT_blend_minmax,
EXT_blend_subtract,
EXT_color_buffer_half_float,
EXT_color_buffer_float,
EXT_copy_image,
EXT_compressed_ETC1_RGB8_sub_texture,
EXT_debug_label,
EXT_debug_marker,
EXT_debug_tool,
EXT_discard_framebuffer,
EXT_disjoint_timer_query,
EXT_draw_buffers,
EXT_draw_instanced,
EXT_instanced_arrays,
EXT_frag_depth,
EXT_framebuffer_blit,
EXT_framebuffer_object,
EXT_framebuffer_sRGB,
EXT_gpu_shader4,
EXT_multi_draw_indirect,
EXT_occlusion_query_boolean,
EXT_packed_float,
EXT_read_format_bgra,
EXT_shader_image_load_store,
EXT_shader_texture_lod,
EXT_shadow_samplers,
EXT_sRGB_write_control,
EXT_texture_array,
EXT_texture_compression_dxt1,
EXT_texture_compression_latc,
EXT_texture_compression_rgtc,
EXT_texture_compression_s3tc,
EXT_texture_cube_map_array,
EXT_texture_filter_anisotropic,
EXT_texture_format_BGRA8888,
EXT_texture_rg,
EXT_texture_shared_exponent,
EXT_texture_snorm,
EXT_texture_sRGB,
EXT_texture_storage,
EXT_texture_swizzle,
EXT_texture_type_2_10_10_10_REV,
EXT_timer_query,
EXT_unpack_subimage,
EXT_sRGB,
GOOGLE_depth_texture,
IMG_multisampled_render_to_texture,
IMG_read_format,
IMG_shader_binary,
IMG_texture_compression_pvrtc,
IMG_texture_compression_pvrtc2,
IMG_texture_format_BGRA8888,
INTEL_fragment_shader_ordering,
KHR_debug,
KHR_no_error,
MOZ_WEBGL_compressed_texture_s3tc,
MOZ_WEBGL_depth_texture,
NV_conservative_raster,
NV_copy_image,
NV_draw_buffers,
NV_occlusion_query,
NV_texture_border_clamp,
NVX_gpu_memory_info,
OES_copy_image,
OES_compressed_ETC1_RGB8_texture,
OES_depth24,
OES_depth32,
OES_depth_texture,
OES_element_index_uint,
OES_fragment_precision_high,
OES_get_program_binary,
OES_required_internalformat,
OES_packed_depth_stencil,
OES_read_format,
OES_rgb8_rgba8,
OES_standard_derivatives,
OES_texture_3D,
OES_texture_float,
OES_texture_float_linear,
OES_texture_npot,
OES_texture_half_float,
OES_texture_half_float_linear,
OES_texture_stencil8,
OES_texture_storage_multisample_2d_array,
OES_vertex_array_object,
OES_vertex_half_float,
OES_vertex_type_10_10_10_2,
WEBGL_color_buffer_float,
WEBGL_compressed_texture_etc1,
WEBGL_compressed_texture_s3tc,
WEBGL_compressed_texture_pvrtc,
WEBGL_depth_texture,
WEBGL_draw_buffers,
WEBKIT_EXT_texture_filter_anisotropic,
WEBKIT_WEBGL_compressed_texture_s3tc,
WEBKIT_WEBGL_depth_texture,
Count
};
const char* m_name;
bool m_supported;
bool m_initialize;
};
// Extension registry
//
// ANGLE:
// https://github.com/google/angle/tree/master/extensions
//
// CHROMIUM:
// https://chromium.googlesource.com/chromium/src.git/+/refs/heads/git-svn/gpu/GLES2/extensions/CHROMIUM
//
// EGL:
// https://www.khronos.org/registry/egl/extensions/
//
// GL:
// https://www.opengl.org/registry/
//
// GLES:
// https://www.khronos.org/registry/gles/extensions/
//
// WEBGL:
// https://www.khronos.org/registry/webgl/extensions/
//
static Extension s_extension[] =
{
{ "AMD_conservative_depth", false, true },
{ "AMD_multi_draw_indirect", false, true },
{ "ANGLE_depth_texture", false, true },
{ "ANGLE_framebuffer_blit", false, true },
{ "ANGLE_framebuffer_multisample", false, false },
{ "ANGLE_instanced_arrays", false, true },
{ "ANGLE_texture_compression_dxt1", false, true },
{ "ANGLE_texture_compression_dxt3", false, true },
{ "ANGLE_texture_compression_dxt5", false, true },
{ "ANGLE_timer_query", false, true },
{ "ANGLE_translated_shader_source", false, true },
{ "APPLE_texture_format_BGRA8888", false, true },
{ "APPLE_texture_max_level", false, true },
{ "ARB_clip_control", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_compute_shader", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_conservative_depth", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_copy_image", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_debug_label", false, true },
{ "ARB_debug_output", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_depth_buffer_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_depth_clamp", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_draw_buffers_blend", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_instanced", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_ES3_compatibility", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_get_program_binary", BGFX_CONFIG_RENDERER_OPENGL >= 41, true },
{ "ARB_half_float_pixel", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_half_float_vertex", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_instanced_arrays", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_internalformat_query", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_internalformat_query2", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_invalidate_subdata", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_map_buffer_range", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_multi_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_multisample", false, true },
{ "ARB_occlusion_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_occlusion_query2", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_program_interface_query", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_sampler_objects", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_seamless_cube_map", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_shader_bit_encoding", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_shader_image_load_store", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_shader_storage_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_shader_texture_lod", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_compression_bptc", BGFX_CONFIG_RENDERER_OPENGL >= 44, true },
{ "ARB_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_cube_map_array", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_texture_float", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_multisample", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_texture_rg", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_rgb10_a2ui", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_texture_stencil8", false, true },
{ "ARB_texture_storage", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_texture_swizzle", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_uniform_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "ARB_vertex_array_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_vertex_type_2_10_10_10_rev", false, true },
{ "ATI_meminfo", false, true },
{ "CHROMIUM_color_buffer_float_rgb", false, true },
{ "CHROMIUM_color_buffer_float_rgba", false, true },
{ "CHROMIUM_depth_texture", false, true },
{ "CHROMIUM_framebuffer_multisample", false, true },
{ "CHROMIUM_texture_compression_dxt3", false, true },
{ "CHROMIUM_texture_compression_dxt5", false, true },
{ "EXT_bgra", false, true },
{ "EXT_blend_color", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "EXT_blend_minmax", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_blend_subtract", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_color_buffer_half_float", false, true }, // GLES2 extension.
{ "EXT_color_buffer_float", false, true }, // GLES2 extension.
{ "EXT_copy_image", false, true }, // GLES2 extension.
{ "EXT_compressed_ETC1_RGB8_sub_texture", false, true }, // GLES2 extension.
{ "EXT_debug_label", false, true },
{ "EXT_debug_marker", false, true },
{ "EXT_debug_tool", false, true }, // RenderDoc extension.
{ "EXT_discard_framebuffer", false, true }, // GLES2 extension.
{ "EXT_disjoint_timer_query", false, true }, // GLES2 extension.
{ "EXT_draw_buffers", false, true }, // GLES2 extension.
{ "EXT_draw_instanced", false, true }, // GLES2 extension.
{ "EXT_instanced_arrays", false, true }, // GLES2 extension.
{ "EXT_frag_depth", false, true }, // GLES2 extension.
{ "EXT_framebuffer_blit", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_gpu_shader4", false, true },
{ "EXT_multi_draw_indirect", false, true }, // GLES3.1 extension.
{ "EXT_occlusion_query_boolean", false, true }, // GLES2 extension.
{ "EXT_packed_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_read_format_bgra", false, true },
{ "EXT_shader_image_load_store", false, true },
{ "EXT_shader_texture_lod", false, true }, // GLES2 extension.
{ "EXT_shadow_samplers", false, true },
{ "EXT_sRGB_write_control", false, true }, // GLES2 extension.
{ "EXT_texture_array", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_dxt1", false, true },
{ "EXT_texture_compression_latc", false, true },
{ "EXT_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_s3tc", false, true },
{ "EXT_texture_cube_map_array", false, true }, // GLES3.1 extension.
{ "EXT_texture_filter_anisotropic", false, true },
{ "EXT_texture_format_BGRA8888", false, true },
{ "EXT_texture_rg", false, true }, // GLES2 extension.
{ "EXT_texture_shared_exponent", false, true },
{ "EXT_texture_snorm", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_sRGB", false, true },
{ "EXT_texture_storage", false, true },
{ "EXT_texture_swizzle", false, true },
{ "EXT_texture_type_2_10_10_10_REV", false, true },
{ "EXT_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_unpack_subimage", false, true },
{ "EXT_sRGB", false, true }, // GLES2 extension.
{ "GOOGLE_depth_texture", false, true },
{ "IMG_multisampled_render_to_texture", false, true },
{ "IMG_read_format", false, true },
{ "IMG_shader_binary", false, true },
{ "IMG_texture_compression_pvrtc", false, true },
{ "IMG_texture_compression_pvrtc2", false, true },
{ "IMG_texture_format_BGRA8888", false, true },
{ "INTEL_fragment_shader_ordering", false, true },
{ "KHR_debug", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "KHR_no_error", false, true },
{ "MOZ_WEBGL_compressed_texture_s3tc", false, true },
{ "MOZ_WEBGL_depth_texture", false, true },
{ "NV_conservative_raster", false, true },
{ "NV_copy_image", false, true },
{ "NV_draw_buffers", false, true }, // GLES2 extension.
{ "NV_occlusion_query", false, true },
{ "NV_texture_border_clamp", false, true }, // GLES2 extension.
{ "NVX_gpu_memory_info", false, true },
{ "OES_copy_image", false, true },
{ "OES_compressed_ETC1_RGB8_texture", false, true },
{ "OES_depth24", false, true },
{ "OES_depth32", false, true },
{ "OES_depth_texture", false, true },
{ "OES_element_index_uint", false, true },
{ "OES_fragment_precision_high", false, true },
{ "OES_get_program_binary", false, true },
{ "OES_required_internalformat", false, true },
{ "OES_packed_depth_stencil", false, true },
{ "OES_read_format", false, true },
{ "OES_rgb8_rgba8", false, true },
{ "OES_standard_derivatives", false, true },
{ "OES_texture_3D", false, true },
{ "OES_texture_float", false, true },
{ "OES_texture_float_linear", false, true },
{ "OES_texture_npot", false, true },
{ "OES_texture_half_float", false, true },
{ "OES_texture_half_float_linear", false, true },
{ "OES_texture_stencil8", false, true },
{ "OES_texture_storage_multisample_2d_array", false, true },
{ "OES_vertex_array_object", false, !BX_PLATFORM_IOS },
{ "OES_vertex_half_float", false, true },
{ "OES_vertex_type_10_10_10_2", false, true },
{ "WEBGL_color_buffer_float", false, true },
{ "WEBGL_compressed_texture_etc1", false, true },
{ "WEBGL_compressed_texture_s3tc", false, true },
{ "WEBGL_compressed_texture_pvrtc", false, true },
{ "WEBGL_depth_texture", false, true },
{ "WEBGL_draw_buffers", false, true },
{ "WEBKIT_EXT_texture_filter_anisotropic", false, true },
{ "WEBKIT_WEBGL_compressed_texture_s3tc", false, true },
{ "WEBKIT_WEBGL_depth_texture", false, true },
};
BX_STATIC_ASSERT(Extension::Count == BX_COUNTOF(s_extension) );
static const char* s_ARB_shader_texture_lod[] =
{
"texture2DLod",
"texture2DArrayLod", // BK - interacts with ARB_texture_array.
"texture2DProjLod",
"texture2DGrad",
"texture2DProjGrad",
"texture3DLod",
"texture3DProjLod",
"texture3DGrad",
"texture3DProjGrad",
"textureCubeLod",
"textureCubeGrad",
"shadow2DLod",
"shadow2DProjLod",
NULL
// "texture1DLod",
// "texture1DProjLod",
// "shadow1DLod",
// "shadow1DProjLod",
};
static const char* s_EXT_shader_texture_lod[] =
{
"texture2DLod",
"texture2DProjLod",
"textureCubeLod",
"texture2DGrad",
"texture2DProjGrad",
"textureCubeGrad",
NULL
};
static const char* s_EXT_shadow_samplers[] =
{
"shadow2D",
"shadow2DProj",
NULL
};
static const char* s_OES_standard_derivatives[] =
{
"dFdx",
"dFdy",
"fwidth",
NULL
};
static const char* s_uisamplers[] =
{
"isampler2D",
"usampler2D",
"isampler3D",
"usampler3D",
"isamplerCube",
"usamplerCube",
NULL
};
static const char* s_uint[] =
{
"uint",
"uvec2",
"uvec3",
"uvec4",
NULL
};
static const char* s_texelFetch[] =
{
"texture",
"textureLod",
"textureGrad",
"textureProj",
"textureProjLod",
"texelFetch",
"texelFetchOffset",
NULL
};
static const char* s_texture3D[] =
{
"sampler3D",
"sampler3DArray",
NULL
};
static const char* s_textureArray[] =
{
"sampler2DArray",
"sampler2DMSArray",
"samplerCubeArray",
"sampler2DArrayShadow",
NULL
};
static const char* s_ARB_texture_multisample[] =
{
"sampler2DMS",
"isampler2DMS",
"usampler2DMS",
NULL
};
static const char* s_EXT_gpu_shader4[] =
{
"gl_VertexID",
"gl_InstanceID",
"uint",
NULL
};
static const char* s_ARB_gpu_shader5[] =
{
"bitfieldReverse",
"floatBitsToInt",
"floatBitsToUint",
"intBitsToFloat",
"uintBitsToFloat",
NULL
};
static const char* s_ARB_shading_language_packing[] =
{
"packHalf2x16",
"unpackHalf2x16",
NULL
};
static const char* s_intepolationQualifier[] =
{
"flat",
"smooth",
"noperspective",
"centroid",
NULL
};
static void GL_APIENTRY stubVertexAttribDivisor(GLuint /*_index*/, GLuint /*_divisor*/)
{
}
static void GL_APIENTRY stubDrawArraysInstanced(GLenum _mode, GLint _first, GLsizei _count, GLsizei /*_primcount*/)
{
GL_CHECK(glDrawArrays(_mode, _first, _count) );
}
static void GL_APIENTRY stubDrawElementsInstanced(GLenum _mode, GLsizei _count, GLenum _type, const GLvoid* _indices, GLsizei /*_primcount*/)
{
GL_CHECK(glDrawElements(_mode, _count, _type, _indices) );
}
static void GL_APIENTRY stubInsertEventMarker(GLsizei /*_length*/, const char* /*_marker*/)
{
}
static void GL_APIENTRY stubPushDebugGroup(GLenum /*_source*/, GLuint /*_id*/, GLsizei /*_length*/, const char* /*_message*/)
{
}
static void GL_APIENTRY stubPopDebugGroup()
{
}
static void GL_APIENTRY stubObjectLabel(GLenum /*_identifier*/, GLuint /*_name*/, GLsizei /*_length*/, const char* /*_label*/)
{
}
static void GL_APIENTRY stubInvalidateFramebuffer(GLenum /*_target*/, GLsizei /*_numAttachments*/, const GLenum* /*_attachments*/)
{
}
static void GL_APIENTRY stubMultiDrawArraysIndirect(GLenum _mode, const void* _indirect, GLsizei _drawcount, GLsizei _stride)
{
const uint8_t* args = (const uint8_t*)_indirect;
for (GLsizei ii = 0; ii < _drawcount; ++ii)
{
GL_CHECK(glDrawArraysIndirect(_mode, (void*)args) );
args += _stride;
}
}
static void GL_APIENTRY stubMultiDrawElementsIndirect(GLenum _mode, GLenum _type, const void* _indirect, GLsizei _drawcount, GLsizei _stride)
{
const uint8_t* args = (const uint8_t*)_indirect;
for (GLsizei ii = 0; ii < _drawcount; ++ii)
{
GL_CHECK(glDrawElementsIndirect(_mode, _type, (void*)args) );
args += _stride;
}
}
static void GL_APIENTRY stubPolygonMode(GLenum /*_face*/, GLenum /*_mode*/)
{
}
typedef void (*PostSwapBuffersFn)(uint32_t _width, uint32_t _height);
void flushGlError()
{
for (GLenum err = glGetError(); err != 0; err = glGetError() );
}
GLenum getGlError()
{
GLenum err = glGetError();
flushGlError();
return err;
}
static const char* getGLString(GLenum _name)
{
const char* str = (const char*)glGetString(_name);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != str)
{
return str;
}
return "<unknown>";
}
static uint32_t getGLStringHash(GLenum _name)
{
const char* str = (const char*)glGetString(_name);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != str)
{
return bx::hash<bx::HashMurmur2A>(str, (uint32_t)bx::strLen(str) );
}
return 0;
}
void dumpExtensions(const char* _extensions)
{
if (NULL != _extensions)
{
char name[1024];
const char* pos = _extensions;
const char* end = _extensions + bx::strLen(_extensions);
while (pos < end)
{
uint32_t len;
bx::StringView space = bx::strFind(pos, ' ');
if (!space.isEmpty() )
{
len = bx::uint32_min(sizeof(name), (uint32_t)(space.getPtr() - pos) );
}
else
{
len = bx::uint32_min(sizeof(name), (uint32_t)bx::strLen(pos) );
}
bx::strCopy(name, BX_COUNTOF(name), pos, len);
name[len] = '\0';
BX_TRACE("\t%s", name);
pos += len+1;
}
}
}
const char* toString(GLenum _enum)
{
switch (_enum)
{
case GL_DEBUG_SOURCE_API: return "API";
case GL_DEBUG_SOURCE_WINDOW_SYSTEM: return "WinSys";
case GL_DEBUG_SOURCE_SHADER_COMPILER: return "Shader";
case GL_DEBUG_SOURCE_THIRD_PARTY: return "3rdparty";
case GL_DEBUG_SOURCE_APPLICATION: return "Application";
case GL_DEBUG_SOURCE_OTHER: return "Other";
case GL_DEBUG_TYPE_ERROR: return "Error";
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: return "Deprecated behavior";
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: return "Undefined behavior";
case GL_DEBUG_TYPE_PORTABILITY: return "Portability";
case GL_DEBUG_TYPE_PERFORMANCE: return "Performance";
case GL_DEBUG_TYPE_OTHER: return "Other";
case GL_DEBUG_SEVERITY_HIGH: return "High";
case GL_DEBUG_SEVERITY_MEDIUM: return "Medium";
case GL_DEBUG_SEVERITY_LOW: return "Low";
case GL_DEBUG_SEVERITY_NOTIFICATION: return "SPAM";
default:
break;
}
return "<unknown>";
}
void GL_APIENTRY debugProcCb(GLenum _source, GLenum _type, GLuint _id, GLenum _severity, GLsizei /*_length*/, const GLchar* _message, const void* /*_userParam*/)
{
if (GL_DEBUG_SEVERITY_NOTIFICATION != _severity)
{
BX_TRACE("src %s, type %s, id %d, severity %s, '%s'"
, toString(_source)
, toString(_type)
, _id
, toString(_severity)
, _message
);
BX_UNUSED(_source, _type, _id, _severity, _message);
}
}
GLint glGet(GLenum _pname)
{
GLint result = 0;
glGetIntegerv(_pname, &result);
GLenum err = getGlError();
BX_WARN(0 == err, "glGetIntegerv(0x%04x, ...) failed with GL error: 0x%04x.", _pname, err);
return 0 == err ? result : 0;
}
void setTextureFormat(TextureFormat::Enum _format, GLenum _internalFmt, GLenum _fmt, GLenum _type = GL_ZERO)
{
TextureFormatInfo& tfi = s_textureFormat[_format];
tfi.m_internalFmt = _internalFmt;
tfi.m_fmt = _fmt;
tfi.m_fmtSrgb = _fmt;
tfi.m_type = _type;
}
void setTextureFormatSrgb(TextureFormat::Enum _format, GLenum _internalFmtSrgb, GLenum _fmtSrgb)
{
TextureFormatInfo& tfi = s_textureFormat[_format];
tfi.m_internalFmtSrgb = _internalFmtSrgb;
tfi.m_fmtSrgb = _fmtSrgb;
}
static void texSubImage(
GLenum _target
, GLint _level
, GLint _xoffset
, GLint _yoffset
, GLint _zoffset
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLenum _format
, GLenum _type
, const GLvoid* _data
)
{
if (NULL == _data)
{
return;
}
if (_target == GL_TEXTURE_3D
|| _target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
glTexSubImage3D(
_target
, _level
, _xoffset
, _yoffset
, _zoffset
, _width
, _height
, _depth
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else
{
BX_UNUSED(_zoffset, _depth);
glTexSubImage2D(
_target
, _level
, _xoffset
, _yoffset
, _width
, _height
, _format
, _type
, _data
);
}
}
static void texImage(
GLenum _target
, uint32_t _msaaQuality
, GLint _level
, GLint _internalFormat
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLint _border
, GLenum _format
, GLenum _type
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D)
{
glTexImage3D(
_target
, _level
, _internalFormat
, _width
, _height
, _depth
, _border
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
texSubImage(
_target
, _level
, 0
, 0
, _depth
, _width
, _height
, 1
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE)
{
glTexImage2DMultisample(
_target
, _msaaQuality
, _internalFormat
, _width
, _height
, false
);
}
else
{
glTexImage2D(
_target
, _level
, _internalFormat
, _width
, _height
, _border
, _format
, _type
, _data
);
}
BX_UNUSED(_msaaQuality, _depth, _border, _data);
}
static void compressedTexSubImage(
GLenum _target
, GLint _level
, GLint _xoffset
, GLint _yoffset
, GLint _zoffset
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLenum _format
, GLsizei _imageSize
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D
|| _target == GL_TEXTURE_2D_ARRAY)
{
glCompressedTexSubImage3D(
_target
, _level
, _xoffset
, _yoffset
, _zoffset
, _width
, _height
, _depth
, _format
, _imageSize
, _data
);
}
else
{
BX_UNUSED(_zoffset, _depth);
glCompressedTexSubImage2D(
_target
, _level
, _xoffset
, _yoffset
, _width
, _height
, _format
, _imageSize
, _data
);
}
}
static void compressedTexImage(
GLenum _target
, GLint _level
, GLenum _internalformat
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLint _border
, GLsizei _imageSize
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D)
{
glCompressedTexImage3D(
_target
, _level
, _internalformat
, _width
, _height
, _depth
, _border
, _imageSize
, _data
);
}
else if (_target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
compressedTexSubImage(
_target
, _level
, 0
, 0
, _depth
, _width
, _height
, 1
, _internalformat
, _imageSize
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else
{
BX_UNUSED(_depth);
glCompressedTexImage2D(
_target
, _level
, _internalformat
, _width
, _height
, _border
, _imageSize
, _data
);
}
}
GLenum initTestTexture(TextureFormat::Enum _format, bool _srgb, bool _mipmaps, bool _array, GLsizei _dim)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
GLenum fmt = _srgb
? tfi.m_fmtSrgb
: tfi.m_fmt
;
GLsizei bpp = bimg::getBitsPerPixel(bimg::TextureFormat::Enum(_format) );
GLsizei size = (_dim*_dim*bpp)/8;
void* data = NULL;
if (bimg::isDepth(bimg::TextureFormat::Enum(_format) ) )
{
_srgb = false;
_mipmaps = false;
_array = false;
}
else
{
data = bx::alignPtr(alloca(size+16), 0, 16);
}
flushGlError();
GLenum err = 0;
const GLenum target = _array
? GL_TEXTURE_2D_ARRAY
: GL_TEXTURE_2D
;
if (bimg::isCompressed(bimg::TextureFormat::Enum(_format) ) )
{
for (uint32_t ii = 0, dim = _dim; ii < (_mipmaps ? 5u : 1u) && 0 == err; ++ii, dim >>= 1)
{
dim = bx::uint32_max(1, dim);
uint32_t block = bx::uint32_max(4, dim);
size = (block*block*bpp)/8;
compressedTexImage(target, ii, internalFmt, dim, dim, 0, 0, size, data);
err |= getGlError();
}
}
else
{
for (uint32_t ii = 0, dim = _dim; ii < (_mipmaps ? 5u : 1u) && 0 == err; ++ii, dim >>= 1)
{
dim = bx::uint32_max(1, dim);
size = (dim*dim*bpp)/8;
texImage(target, 0, ii, internalFmt, dim, dim, 0, 0, fmt, tfi.m_type, data);
err |= getGlError();
}
}
return err;
}
static bool isTextureFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
, bool _mipAutogen = false
, bool _array = false
, GLsizei _dim = 16
)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
if (GL_ZERO == internalFmt)
{
return false;
}
const GLenum target = _array
? GL_TEXTURE_2D_ARRAY
: GL_TEXTURE_2D
;
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(target, id) );
GLenum err = 0;
if (_array)
{
glTexStorage3D(target
, 1 + GLsizei(bx::log2((int32_t)_dim) )
, internalFmt
, _dim
, _dim
, _dim
);
err = getGlError();
}
if (0 == err)
{
err = initTestTexture(_format, _srgb, _mipAutogen, _array, _dim);
BX_WARN(0 == err, "TextureFormat::%s %s%s%sis not supported (%x: %s)."
, getName(_format)
, _srgb ? "+sRGB " : ""
, _mipAutogen ? "+mipAutoGen " : ""
, _array ? "+array " : ""
, err
, glEnumName(err)
);
if (0 == err
&& _mipAutogen)
{
glGenerateMipmap(target);
err = getGlError();
}
}
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
}
static bool isImageFormatValid(TextureFormat::Enum _format, GLsizei _dim = 16)
{
if (GL_ZERO == s_imageFormat[_format])
{
return false;
}
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
flushGlError();
GLenum err = 0;
glTexStorage2D(GL_TEXTURE_2D, 1, s_imageFormat[_format], _dim, _dim);
err |= getGlError();
if (0 == err)
{
glBindImageTexture(0
, id
, 0
, GL_FALSE
, 0
, GL_READ_WRITE
, s_imageFormat[_format]
);
err |= getGlError();
}
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
}
static bool isFramebufferFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
, bool _writeOnly = false
, GLsizei _dim = 16
)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
if (GL_ZERO == internalFmt)
{
return false;
}
if (_writeOnly)
{
GLuint rbo;
glGenRenderbuffers(1, &rbo);
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER
, s_rboFormat[_format]
, _dim
, _dim
);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glDeleteRenderbuffers(1, &rbo);
GLenum err = getGlError();
return 0 == err;
}
GLuint fbo;
GL_CHECK(glGenFramebuffers(1, &fbo) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, fbo) );
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
GLenum err = initTestTexture(_format, _srgb, false, false, _dim);
GLenum attachment;
if (bimg::isDepth(bimg::TextureFormat::Enum(_format) ) )
{
const bimg::ImageBlockInfo& info = bimg::getBlockInfo(bimg::TextureFormat::Enum(_format) );
if (0 == info.depthBits)
{
attachment = GL_STENCIL_ATTACHMENT;
}
else if (0 == info.stencilBits)
{
attachment = GL_DEPTH_ATTACHMENT;
}
else
{
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
}
}
else
{
attachment = GL_COLOR_ATTACHMENT0;
}
glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, GL_TEXTURE_2D
, id
, 0
);
err = getGlError();
if (0 == err)
{
err = glCheckFramebufferStatus(GL_FRAMEBUFFER);
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0) );
GL_CHECK(glDeleteFramebuffers(1, &fbo) );
GL_CHECK(glDeleteTextures(1, &id) );
return GL_FRAMEBUFFER_COMPLETE == err;
}
static void getFilters(uint32_t _flags, bool _hasMips, GLenum& _magFilter, GLenum& _minFilter)
{
const uint32_t mag = (_flags&BGFX_SAMPLER_MAG_MASK)>>BGFX_SAMPLER_MAG_SHIFT;
const uint32_t min = (_flags&BGFX_SAMPLER_MIN_MASK)>>BGFX_SAMPLER_MIN_SHIFT;
const uint32_t mip = (_flags&BGFX_SAMPLER_MIP_MASK)>>BGFX_SAMPLER_MIP_SHIFT;
_magFilter = s_textureFilterMag[mag];
_minFilter = s_textureFilterMin[min][_hasMips ? mip+1 : 0];
}
void updateExtension(const bx::StringView& _name)
{
bx::StringView ext(_name);
if (0 == bx::strCmp(ext, "GL_", 3) ) // skip GL_
{
ext.set(ext.getPtr()+3, ext.getTerm() );
}
bool supported = false;
for (uint32_t ii = 0; ii < Extension::Count; ++ii)
{
Extension& extension = s_extension[ii];
if (!extension.m_supported
&& extension.m_initialize)
{
if (0 == bx::strCmp(ext, extension.m_name) )
{
extension.m_supported = true;
supported = true;
break;
}
}
}
BX_TRACE("GL_EXTENSION %s: %.*s", supported ? " (supported)" : "", _name.getLength(), _name.getPtr() );
BX_UNUSED(supported);
}
struct VendorId
{
const char* name;
uint16_t id;
};
static const VendorId s_vendorIds[] =
{
{ "NVIDIA Corporation", BGFX_PCI_ID_NVIDIA },
{ "Advanced Micro Devices, Inc.", BGFX_PCI_ID_AMD },
{ "Intel", BGFX_PCI_ID_INTEL },
{ "ATI Technologies Inc.", BGFX_PCI_ID_AMD },
};
struct Workaround
{
void reset()
{
m_detachShader = true;
}
bool m_detachShader;
};
struct RendererContextGL : public RendererContextI
{
RendererContextGL()
: m_numWindows(1)
, m_rtMsaa(false)
, m_fbDiscard(BGFX_CLEAR_NONE)
, m_capture(NULL)
, m_captureSize(0)
, m_maxAnisotropy(0.0f)
, m_maxAnisotropyDefault(0.0f)
, m_maxMsaa(0)
, m_vao(0)
, m_blitSupported(false)
, m_readBackSupported(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_vaoSupport(false)
, m_samplerObjectSupport(false)
, m_shadowSamplersSupport(false)
, m_srgbWriteControlSupport(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_borderColorSupport(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_programBinarySupport(false)
, m_textureSwizzleSupport(false)
, m_depthTextureSupport(false)
, m_timerQuerySupport(false)
, m_occlusionQuerySupport(false)
, m_atocSupport(false)
, m_conservativeRasterSupport(false)
, m_flip(false)
, m_hash( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
, m_backBufferFbo(0)
, m_msaaBackBufferFbo(0)
, m_clearQuadColor(BGFX_INVALID_HANDLE)
, m_clearQuadDepth(BGFX_INVALID_HANDLE)
{
bx::memSet(m_msaaBackBufferRbos, 0, sizeof(m_msaaBackBufferRbos) );
}
~RendererContextGL()
{
}
bool init(const Init& _init)
{
struct ErrorState
{
enum Enum
{
Default,
};
};
ErrorState::Enum errorState = ErrorState::Default;
if (_init.debug
|| _init.profile)
{
m_renderdocdll = loadRenderDoc();
}
m_fbh.idx = kInvalidHandle;
bx::memSet(m_uniforms, 0, sizeof(m_uniforms) );
bx::memSet(&m_resolution, 0, sizeof(m_resolution) );
setRenderContextSize(_init.resolution.width, _init.resolution.height);
m_vendor = getGLString(GL_VENDOR);
m_renderer = getGLString(GL_RENDERER);
m_version = getGLString(GL_VERSION);
m_glslVersion = getGLString(GL_SHADING_LANGUAGE_VERSION);
for (uint32_t ii = 0; ii < BX_COUNTOF(s_vendorIds); ++ii)
{
const VendorId& vendorId = s_vendorIds[ii];
if (0 == bx::strCmp(vendorId.name, m_vendor, bx::strLen(vendorId.name) ) )
{
g_caps.vendorId = vendorId.id;
break;
}
}
m_workaround.reset();
GLint numCmpFormats = 0;
GL_CHECK(glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numCmpFormats) );
BX_TRACE("GL_NUM_COMPRESSED_TEXTURE_FORMATS %d", numCmpFormats);
GLint* cmpFormat = NULL;
if (0 < numCmpFormats)
{
numCmpFormats = numCmpFormats > 256 ? 256 : numCmpFormats;
cmpFormat = (GLint*)alloca(sizeof(GLint)*numCmpFormats);
GL_CHECK(glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, cmpFormat) );
for (GLint ii = 0; ii < numCmpFormats; ++ii)
{
GLint internalFmt = cmpFormat[ii];
uint32_t fmt = uint32_t(TextureFormat::Unknown);
for (uint32_t jj = 0; jj < fmt; ++jj)
{
if (s_textureFormat[jj].m_internalFmt == (GLenum)internalFmt)
{
s_textureFormat[jj].m_supported = true;
fmt = jj;
}
}
BX_TRACE(" %3d: %8x %s", ii, internalFmt, getName( (TextureFormat::Enum)fmt) );
}
}
if (BX_ENABLED(BGFX_CONFIG_DEBUG) )
{
#define GL_GET(_pname, _min) BX_TRACE(" " #_pname " %d (min: %d)", glGet(_pname), _min)
BX_TRACE("Defaults:");
#if BGFX_CONFIG_RENDERER_OPENGL >= 41 || BGFX_CONFIG_RENDERER_OPENGLES
GL_GET(GL_MAX_FRAGMENT_UNIFORM_VECTORS, 16);
GL_GET(GL_MAX_VERTEX_UNIFORM_VECTORS, 128);
GL_GET(GL_MAX_VARYING_VECTORS, 8);
#else
GL_GET(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, 16 * 4);
GL_GET(GL_MAX_VERTEX_UNIFORM_COMPONENTS, 128 * 4);
GL_GET(GL_MAX_VARYING_FLOATS, 8 * 4);
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 41 || BGFX_CONFIG_RENDERER_OPENGLES
GL_GET(GL_MAX_VERTEX_ATTRIBS, 8);
GL_GET(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, 8);
GL_GET(GL_MAX_CUBE_MAP_TEXTURE_SIZE, 16);
GL_GET(GL_MAX_TEXTURE_IMAGE_UNITS, 8);
GL_GET(GL_MAX_TEXTURE_SIZE, 64);
GL_GET(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, 0);
GL_GET(GL_MAX_RENDERBUFFER_SIZE, 1);
GL_GET(GL_MAX_COLOR_ATTACHMENTS, 1);
GL_GET(GL_MAX_DRAW_BUFFERS, 1);
GL_GET(GL_MAX_LABEL_LENGTH, 0);
#undef GL_GET
BX_TRACE(" Vendor: %s", m_vendor);
BX_TRACE(" Renderer: %s", m_renderer);
BX_TRACE(" Version: %s", m_version);
BX_TRACE("GLSL version: %s", m_glslVersion);
}
// Initial binary shader hash depends on driver version.
m_hash = ( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
^ (uint64_t(getGLStringHash(GL_VENDOR ) )<<32)
^ (uint64_t(getGLStringHash(GL_RENDERER) )<<0 )
^ (uint64_t(getGLStringHash(GL_VERSION ) )<<16)
;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
&& 0 == bx::strCmp(m_vendor, "Imagination Technologies")
&& !bx::strFind(m_version, "(SDK 3.5@3510720)").isEmpty() )
{
// Skip initializing extensions that are broken in emulator.
s_extension[Extension::ARB_program_interface_query ].m_initialize =
s_extension[Extension::ARB_shader_storage_buffer_object].m_initialize = false;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& 0 == bx::strCmp(m_vendor, "Imagination Technologies")
&& !bx::strFind(m_version, "1.8@905891").isEmpty() )
{
m_workaround.m_detachShader = false;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_USE_EXTENSIONS) )
{
const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != extensions)
{
bx::StringView ext(extensions);
uint32_t index = 0;
while (!ext.isEmpty() )
{
const bx::StringView space = bx::strFind(ext, ' ');
const bx::StringView token = bx::StringView(ext.getPtr(), space.getPtr() );
updateExtension(token);
ext.set(space.getPtr() + (space.isEmpty() ? 0 : 1), ext.getTerm() );
++index;
}
}
else if (NULL != glGetStringi)
{
GLint numExtensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
getGlError(); // ignore error if glGetIntegerv returns NULL.
for (GLint index = 0; index < numExtensions; ++index)
{
const char* name = (const char*)glGetStringi(GL_EXTENSIONS, index);
updateExtension(name);
}
}
BX_TRACE("Supported extensions:");
for (uint32_t ii = 0; ii < Extension::Count; ++ii)
{
if (s_extension[ii].m_supported)
{
BX_TRACE("\t%2d: %s", ii, s_extension[ii].m_name);
}
}
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& !s_extension[Extension::ARB_framebuffer_object].m_supported)
{
BX_TRACE("Init error: ARB_framebuffer_object not supported.");
goto error;
}
{
// Allow all texture filters.
bx::memSet(s_textureFilter, true, BX_COUNTOF(s_textureFilter) );
bool bc123Supported = 0
|| s_extension[Extension::EXT_texture_compression_s3tc ].m_supported
|| s_extension[Extension::MOZ_WEBGL_compressed_texture_s3tc ].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_s3tc ].m_supported
|| s_extension[Extension::WEBKIT_WEBGL_compressed_texture_s3tc].m_supported
;
s_textureFormat[TextureFormat::BC1].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt1].m_supported
|| s_extension[Extension::EXT_texture_compression_dxt1 ].m_supported
;
if (!s_textureFormat[TextureFormat::BC1].m_supported
&& ( s_textureFormat[TextureFormat::BC2].m_supported || s_textureFormat[TextureFormat::BC3].m_supported) )
{
// If RGBA_S3TC_DXT1 is not supported, maybe RGB_S3TC_DXT1 is?
for (GLint ii = 0; ii < numCmpFormats; ++ii)
{
if (GL_COMPRESSED_RGB_S3TC_DXT1_EXT == cmpFormat[ii])
{
setTextureFormat(TextureFormat::BC1, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
s_textureFormat[TextureFormat::BC1].m_supported = true;
break;
}
}
}
s_textureFormat[TextureFormat::BC2].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt3 ].m_supported
|| s_extension[Extension::CHROMIUM_texture_compression_dxt3].m_supported
;
s_textureFormat[TextureFormat::BC3].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt5 ].m_supported
|| s_extension[Extension::CHROMIUM_texture_compression_dxt5].m_supported
;
if (s_extension[Extension::EXT_texture_compression_latc].m_supported)
{
setTextureFormat(TextureFormat::BC4, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_COMPRESSED_LUMINANCE_LATC1_EXT);
setTextureFormat(TextureFormat::BC5, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT);
}
if (s_extension[Extension::ARB_texture_compression_rgtc].m_supported
|| s_extension[Extension::EXT_texture_compression_rgtc].m_supported)
{
setTextureFormat(TextureFormat::BC4, GL_COMPRESSED_RED_RGTC1, GL_COMPRESSED_RED_RGTC1);
setTextureFormat(TextureFormat::BC5, GL_COMPRESSED_RG_RGTC2, GL_COMPRESSED_RG_RGTC2);
}
bool etc1Supported = 0
|| s_extension[Extension::OES_compressed_ETC1_RGB8_texture].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_etc1 ].m_supported
;
s_textureFormat[TextureFormat::ETC1].m_supported |= etc1Supported;
bool etc2Supported = !!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_ES3_compatibility].m_supported
;
s_textureFormat[TextureFormat::ETC2 ].m_supported |= etc2Supported;
s_textureFormat[TextureFormat::ETC2A ].m_supported |= etc2Supported;
s_textureFormat[TextureFormat::ETC2A1].m_supported |= etc2Supported;
if (!s_textureFormat[TextureFormat::ETC1].m_supported
&& s_textureFormat[TextureFormat::ETC2].m_supported)
{
// When ETC2 is supported override ETC1 texture format settings.
s_textureFormat[TextureFormat::ETC1].m_internalFmt = GL_COMPRESSED_RGB8_ETC2;
s_textureFormat[TextureFormat::ETC1].m_fmt = GL_COMPRESSED_RGB8_ETC2;
s_textureFormat[TextureFormat::ETC1].m_supported = true;
}
bool ptc1Supported = 0
|| s_extension[Extension::IMG_texture_compression_pvrtc ].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_pvrtc].m_supported
;
s_textureFormat[TextureFormat::PTC12 ].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC14 ].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC12A].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC14A].m_supported |= ptc1Supported;
bool ptc2Supported = s_extension[Extension::IMG_texture_compression_pvrtc2].m_supported;
s_textureFormat[TextureFormat::PTC22].m_supported |= ptc2Supported;
s_textureFormat[TextureFormat::PTC24].m_supported |= ptc2Supported;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES) )
{
setTextureFormat(TextureFormat::D32, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
setTextureFormat(TextureFormat::RGBA16F, GL_RGBA, GL_RGBA, GL_HALF_FLOAT);
setTextureFormat(TextureFormat::RGBA32F, GL_RGBA, GL_RGBA, GL_FLOAT);
// internalFormat and format must match:
// https://www.khronos.org/opengles/sdk/docs/man/xhtml/glTexImage2D.xml
setTextureFormat(TextureFormat::RGBA8, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE);
setTextureFormat(TextureFormat::R5G6B5, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV);
setTextureFormat(TextureFormat::RGBA4, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV);
setTextureFormat(TextureFormat::RGB5A1, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV);
if (s_extension[Extension::EXT_sRGB].m_supported)
{
setTextureFormatSrgb(TextureFormat::RGBA8, GL_SRGB_ALPHA_EXT, GL_SRGB_ALPHA_EXT);
setTextureFormatSrgb(TextureFormat::RGB8, GL_SRGB_EXT, GL_SRGB_EXT);
}
if (s_extension[Extension::OES_texture_half_float].m_supported
|| s_extension[Extension::OES_texture_float ].m_supported)
{
// https://www.khronos.org/registry/gles/extensions/OES/OES_texture_float.txt
// When half/float is available via extensions texture will be marked as
// incomplete if it uses anything other than nearest filter.
const bool linear16F = s_extension[Extension::OES_texture_half_float_linear].m_supported;
const bool linear32F = s_extension[Extension::OES_texture_float_linear ].m_supported;
s_textureFilter[TextureFormat::R16F] = linear16F;
s_textureFilter[TextureFormat::RG16F] = linear16F;
s_textureFilter[TextureFormat::RGBA16F] = linear16F;
s_textureFilter[TextureFormat::R32F] = linear32F;
s_textureFilter[TextureFormat::RG32F] = linear32F;
s_textureFilter[TextureFormat::RGBA32F] = linear32F;
}
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN))
{
setTextureFormat(TextureFormat::D16, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT);
setTextureFormat(TextureFormat::D24S8, GL_DEPTH_STENCIL, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
}
}
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
setTextureFormat(TextureFormat::R8I, GL_R8I, GL_RED_INTEGER, GL_BYTE);
setTextureFormat(TextureFormat::R8U, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE);
setTextureFormat(TextureFormat::R16I, GL_R16I, GL_RED_INTEGER, GL_SHORT);
setTextureFormat(TextureFormat::R16U, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT);
// setTextureFormat(TextureFormat::RG16, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT);
// setTextureFormat(TextureFormat::RGBA16, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT);
setTextureFormat(TextureFormat::R32U, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT);
setTextureFormat(TextureFormat::RG32U, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT);
setTextureFormat(TextureFormat::RGBA32U, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT);
}
if (s_extension[Extension::EXT_texture_format_BGRA8888 ].m_supported
|| s_extension[Extension::EXT_bgra ].m_supported
|| s_extension[Extension::IMG_texture_format_BGRA8888 ].m_supported
|| s_extension[Extension::APPLE_texture_format_BGRA8888].m_supported)
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
m_readPixelsFmt = GL_BGRA;
}
// Mixing GLES and GL extensions here. OpenGL EXT_bgra and
// APPLE_texture_format_BGRA8888 wants
// format to be BGRA but internal format to stay RGBA, but
// EXT_texture_format_BGRA8888 wants both format and internal
// format to be BGRA.
//
// Reference(s):
// - https://web.archive.org/web/20181126035829/https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_texture_format_BGRA8888.txt
// - https://web.archive.org/web/20181126035841/https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_bgra.txt
// - https://web.archive.org/web/20181126035851/https://www.khronos.org/registry/OpenGL/extensions/APPLE/APPLE_texture_format_BGRA8888.txt
//
if (!s_extension[Extension::EXT_bgra ].m_supported
&& !s_extension[Extension::APPLE_texture_format_BGRA8888].m_supported)
{
s_textureFormat[TextureFormat::BGRA8].m_internalFmt = GL_BGRA;
}
if (!isTextureFormatValid(TextureFormat::BGRA8) )
{
// Revert back to RGBA if texture can't be created.
setTextureFormat(TextureFormat::BGRA8, GL_RGBA, GL_BGRA, GL_UNSIGNED_BYTE);
}
}
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
{
setTextureFormat(TextureFormat::RGBA4, GL_ZERO, GL_ZERO, GL_ZERO);
setTextureFormat(TextureFormat::RGB5A1, GL_ZERO, GL_ZERO, GL_ZERO);
if (!isTextureFormatValid(TextureFormat::R8) )
{
// GL core has to use GL_R8 Issue#208, GLES2 has to use GL_LUMINANCE issue#226
s_textureFormat[TextureFormat::R8].m_internalFmt = GL_LUMINANCE;
s_textureFormat[TextureFormat::R8].m_fmt = GL_LUMINANCE;
}
}
for (uint32_t ii = BX_ENABLED(BX_PLATFORM_IOS) ? TextureFormat::Unknown : 0 // skip test on iOS!
; ii < TextureFormat::Count
; ++ii
)
{
if (TextureFormat::Unknown != ii
&& TextureFormat::UnknownDepth != ii)
{
s_textureFormat[ii].m_supported = isTextureFormatValid(TextureFormat::Enum(ii) );
}
}
if (BX_ENABLED(0) )
{
// Disable all compressed texture formats. For testing only.
for (uint32_t ii = 0; ii < TextureFormat::Unknown; ++ii)
{
s_textureFormat[ii].m_supported = false;
}
}
const bool computeSupport = false
|| !!(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
|| s_extension[Extension::ARB_compute_shader].m_supported
;
for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii)
{
const TextureFormat::Enum fmt = TextureFormat::Enum(ii);
uint16_t supported = BGFX_CAPS_FORMAT_TEXTURE_NONE;
supported |= s_textureFormat[ii].m_supported
? BGFX_CAPS_FORMAT_TEXTURE_2D
| BGFX_CAPS_FORMAT_TEXTURE_3D
| BGFX_CAPS_FORMAT_TEXTURE_CUBE
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isTextureFormatValid(fmt, true)
? BGFX_CAPS_FORMAT_TEXTURE_2D_SRGB
| BGFX_CAPS_FORMAT_TEXTURE_3D_SRGB
| BGFX_CAPS_FORMAT_TEXTURE_CUBE_SRGB
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
if (!bimg::isCompressed(bimg::TextureFormat::Enum(fmt) ) )
{
supported |= isTextureFormatValid(fmt, false, true)
? BGFX_CAPS_FORMAT_TEXTURE_MIP_AUTOGEN
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
}
supported |= computeSupport
&& isImageFormatValid(fmt)
? BGFX_CAPS_FORMAT_TEXTURE_IMAGE
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isFramebufferFormatValid(fmt)
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isFramebufferFormatValid(fmt, false, true)
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
if (NULL != glGetInternalformativ)
{
GLint maxSamples;
glGetInternalformativ(GL_RENDERBUFFER
, s_textureFormat[ii].m_internalFmt
, GL_SAMPLES
, 1
, &maxSamples
);
GLenum err = getGlError();
supported |= 0 == err && maxSamples > 0
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER_MSAA
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
glGetInternalformativ(GL_TEXTURE_2D_MULTISAMPLE
, s_textureFormat[ii].m_internalFmt
, GL_SAMPLES
, 1
, &maxSamples
);
err = getGlError();
supported |= 0 == err && maxSamples > 0
? BGFX_CAPS_FORMAT_TEXTURE_MSAA
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
}
g_caps.formats[ii] = supported;
}
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_texture_3D].m_supported
? BGFX_CAPS_TEXTURE_3D
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_shadow_samplers].m_supported
? BGFX_CAPS_TEXTURE_COMPARE_ALL
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_vertex_half_float].m_supported
? BGFX_CAPS_VERTEX_ATTRIB_HALF
: 0
;
g_caps.supported |= false
|| s_extension[Extension::ARB_vertex_type_2_10_10_10_rev].m_supported
|| s_extension[Extension::OES_vertex_type_10_10_10_2].m_supported
? BGFX_CAPS_VERTEX_ATTRIB_UINT10
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_frag_depth].m_supported
? BGFX_CAPS_FRAGMENT_DEPTH
: 0
;
g_caps.supported |= s_extension[Extension::ARB_draw_buffers_blend].m_supported
? BGFX_CAPS_BLEND_INDEPENDENT
: 0
;
g_caps.supported |= s_extension[Extension::INTEL_fragment_shader_ordering].m_supported
? BGFX_CAPS_FRAGMENT_ORDERING
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_element_index_uint].m_supported
? BGFX_CAPS_INDEX32
: 0
;
const bool drawIndirectSupported = false
|| s_extension[Extension::AMD_multi_draw_indirect].m_supported
|| s_extension[Extension::ARB_draw_indirect ].m_supported
|| s_extension[Extension::ARB_multi_draw_indirect].m_supported
|| s_extension[Extension::EXT_multi_draw_indirect].m_supported
;
if (drawIndirectSupported)
{
if (NULL == glMultiDrawArraysIndirect
|| NULL == glMultiDrawElementsIndirect)
{
glMultiDrawArraysIndirect = stubMultiDrawArraysIndirect;
glMultiDrawElementsIndirect = stubMultiDrawElementsIndirect;
}
}
g_caps.supported |= drawIndirectSupported
? BGFX_CAPS_DRAW_INDIRECT
: 0
;
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
|| NULL == glPolygonMode)
{
glPolygonMode = stubPolygonMode;
}
if (s_extension[Extension::ARB_copy_image].m_supported
|| s_extension[Extension::EXT_copy_image].m_supported
|| s_extension[Extension:: NV_copy_image].m_supported
|| s_extension[Extension::OES_copy_image].m_supported)
{
m_blitSupported = NULL != glCopyImageSubData;
g_caps.supported |= m_blitSupported
? BGFX_CAPS_TEXTURE_BLIT
: 0
;
}
g_caps.supported |= m_readBackSupported
? BGFX_CAPS_TEXTURE_READ_BACK
: 0
;
g_caps.supported |= false
|| s_extension[Extension::EXT_texture_array].m_supported
|| s_extension[Extension::EXT_gpu_shader4].m_supported
|| (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30) && !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
? BGFX_CAPS_TEXTURE_2D_ARRAY
: 0
;
g_caps.supported |= false
|| s_extension[Extension::EXT_gpu_shader4].m_supported
|| (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30) && !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
? BGFX_CAPS_VERTEX_ID
: 0
;
g_caps.supported |= false
|| s_extension[Extension::ARB_texture_cube_map_array].m_supported
|| s_extension[Extension::EXT_texture_cube_map_array].m_supported
? BGFX_CAPS_TEXTURE_CUBE_ARRAY
: 0
;
g_caps.limits.maxTextureSize = uint16_t(glGet(GL_MAX_TEXTURE_SIZE) );
g_caps.limits.maxTextureLayers = uint16_t(bx::max(glGet(GL_MAX_ARRAY_TEXTURE_LAYERS), 1) );
g_caps.limits.maxComputeBindings = computeSupport ? BGFX_MAX_COMPUTE_BINDINGS : 0;
g_caps.limits.maxVertexStreams = BGFX_CONFIG_MAX_VERTEX_STREAMS;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_draw_buffers ].m_supported
|| s_extension[Extension::WEBGL_draw_buffers].m_supported)
{
g_caps.limits.maxFBAttachments = uint8_t(bx::uint32_clamp(
glGet(GL_MAX_DRAW_BUFFERS)
, 1
, BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS)
);
}
// if (s_extension[Extension::ARB_clip_control].m_supported)
// {
// GL_CHECK(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE) );
// g_caps.originBottomLeft = true;
// }
// else
{
g_caps.homogeneousDepth = true;
g_caps.originBottomLeft = true;
}
m_vaoSupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_vertex_array_object].m_supported
|| s_extension[Extension::OES_vertex_array_object].m_supported
);
if (m_vaoSupport)
{
GL_CHECK(glGenVertexArrays(1, &m_vao) );
}
m_samplerObjectSupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_sampler_objects].m_supported
);
m_shadowSamplersSupport = !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_shadow_samplers].m_supported
;
m_programBinarySupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_get_program_binary].m_supported
|| s_extension[Extension::OES_get_program_binary].m_supported
|| s_extension[Extension::IMG_shader_binary ].m_supported
);
m_textureSwizzleSupport = false
|| s_extension[Extension::ARB_texture_swizzle].m_supported
|| s_extension[Extension::EXT_texture_swizzle].m_supported
;
m_depthTextureSupport = !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ANGLE_depth_texture ].m_supported
|| s_extension[Extension::CHROMIUM_depth_texture ].m_supported
|| s_extension[Extension::GOOGLE_depth_texture ].m_supported
|| s_extension[Extension::OES_depth_texture ].m_supported
|| s_extension[Extension::MOZ_WEBGL_depth_texture ].m_supported
|| s_extension[Extension::WEBGL_depth_texture ].m_supported
|| s_extension[Extension::WEBKIT_WEBGL_depth_texture].m_supported
;
m_timerQuerySupport = false
|| s_extension[Extension::ANGLE_timer_query ].m_supported
|| s_extension[Extension::ARB_timer_query ].m_supported
|| s_extension[Extension::EXT_disjoint_timer_query].m_supported
|| s_extension[Extension::EXT_timer_query ].m_supported
;
m_timerQuerySupport &= true
&& NULL != glQueryCounter
&& NULL != glGetQueryObjectiv
&& NULL != glGetQueryObjectui64v
;
m_occlusionQuerySupport = false
|| s_extension[Extension::ARB_occlusion_query ].m_supported
|| s_extension[Extension::ARB_occlusion_query2 ].m_supported
|| s_extension[Extension::EXT_occlusion_query_boolean].m_supported
|| s_extension[Extension::NV_occlusion_query ].m_supported
;
m_occlusionQuerySupport &= true
&& NULL != glGenQueries
&& NULL != glDeleteQueries
&& NULL != glBeginQuery
&& NULL != glEndQuery
;
m_atocSupport = s_extension[Extension::ARB_multisample].m_supported;
m_conservativeRasterSupport = s_extension[Extension::NV_conservative_raster].m_supported;
m_imageLoadStoreSupport = false
|| s_extension[Extension::ARB_shader_image_load_store].m_supported
|| s_extension[Extension::EXT_shader_image_load_store].m_supported
;
g_caps.supported |= 0
| (m_atocSupport ? BGFX_CAPS_ALPHA_TO_COVERAGE : 0)
| (m_conservativeRasterSupport ? BGFX_CAPS_CONSERVATIVE_RASTER : 0)
| (m_occlusionQuerySupport ? BGFX_CAPS_OCCLUSION_QUERY : 0)
| (m_depthTextureSupport ? BGFX_CAPS_TEXTURE_COMPARE_LEQUAL : 0)
| (computeSupport ? BGFX_CAPS_COMPUTE : 0)
| (m_imageLoadStoreSupport ? BGFX_CAPS_FRAMEBUFFER_RW : 0)
;
g_caps.supported |= m_glctx.getCaps();
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES) )
{
m_srgbWriteControlSupport = s_extension[Extension::EXT_sRGB_write_control].m_supported;
m_borderColorSupport = s_extension[Extension::NV_texture_border_clamp].m_supported;
s_textureAddress[BGFX_SAMPLER_U_BORDER>>BGFX_SAMPLER_U_SHIFT] = s_extension[Extension::NV_texture_border_clamp].m_supported
? GL_CLAMP_TO_BORDER
: GL_CLAMP_TO_EDGE
;
}
if (s_extension[Extension::EXT_texture_filter_anisotropic].m_supported)
{
GL_CHECK(glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &m_maxAnisotropyDefault) );
}
if (s_extension[Extension::ARB_texture_multisample].m_supported
|| s_extension[Extension::ANGLE_framebuffer_multisample].m_supported)
{
GL_CHECK(glGetIntegerv(GL_MAX_SAMPLES, &m_maxMsaa) );
}
if (s_extension[Extension::OES_read_format].m_supported
&& (s_extension[Extension::IMG_read_format].m_supported || s_extension[Extension::EXT_read_format_bgra].m_supported) )
{
m_readPixelsFmt = GL_BGRA;
}
else
{
m_readPixelsFmt = GL_RGBA;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
g_caps.supported |= BGFX_CAPS_INSTANCING;
}
else
{
if (s_extension[Extension::ANGLE_instanced_arrays].m_supported
|| s_extension[Extension::ARB_instanced_arrays].m_supported
|| s_extension[Extension::EXT_instanced_arrays].m_supported)
{
if (NULL != glVertexAttribDivisor
&& NULL != glDrawArraysInstanced
&& NULL != glDrawElementsInstanced)
{
g_caps.supported |= BGFX_CAPS_INSTANCING;
}
}
if (0 == (g_caps.supported & BGFX_CAPS_INSTANCING) )
{
glVertexAttribDivisor = stubVertexAttribDivisor;
glDrawArraysInstanced = stubDrawArraysInstanced;
glDrawElementsInstanced = stubDrawElementsInstanced;
}
}
if (s_extension[Extension::ARB_debug_output].m_supported
|| s_extension[Extension::KHR_debug].m_supported)
{
if (NULL != glDebugMessageControl
&& NULL != glDebugMessageInsert
&& NULL != glDebugMessageCallback
&& NULL != glGetDebugMessageLog)
{
GL_CHECK(glDebugMessageCallback(debugProcCb, NULL) );
GL_CHECK(glDebugMessageControl(GL_DONT_CARE
, GL_DONT_CARE
, GL_DEBUG_SEVERITY_MEDIUM
, 0
, NULL
, GL_TRUE
) );
}
}
if (NULL == glPushDebugGroup
|| NULL == glPopDebugGroup)
{
glPushDebugGroup = stubPushDebugGroup;
glPopDebugGroup = stubPopDebugGroup;
}
if (s_extension[Extension::ARB_seamless_cube_map].m_supported)
{
GL_CHECK(glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS) );
}
if (NULL == glInsertEventMarker
|| !s_extension[Extension::EXT_debug_marker].m_supported)
{
glInsertEventMarker = stubInsertEventMarker;
}
m_maxLabelLen = uint16_t(glGet(GL_MAX_LABEL_LENGTH) );
setGraphicsDebuggerPresent(s_extension[Extension::EXT_debug_tool].m_supported);
if (NULL == glObjectLabel)
{
glObjectLabel = stubObjectLabel;
}
if (NULL == glInvalidateFramebuffer)
{
glInvalidateFramebuffer = stubInvalidateFramebuffer;
}
if (m_timerQuerySupport)
{
m_gpuTimer.create();
}
if (m_occlusionQuerySupport)
{
m_occlusionQuery.create();
}
// Init reserved part of view name.
for (uint32_t ii = 0; ii < BGFX_CONFIG_MAX_VIEWS; ++ii)
{
bx::snprintf(s_viewName[ii], BGFX_CONFIG_MAX_VIEW_NAME_RESERVED+1, "%3d ", ii);
}
m_needPresent = false;
}
return true;
error:
switch (errorState)
{
case ErrorState::Default:
break;
}
m_glctx.destroy();
unloadRenderDoc(m_renderdocdll);
return false;
}
void shutdown()
{
if (m_vaoSupport)
{
GL_CHECK(glBindVertexArray(0) );
GL_CHECK(glDeleteVertexArrays(1, &m_vao) );
m_vao = 0;
}
captureFinish();
invalidateCache();
if (m_timerQuerySupport)
{
m_gpuTimer.destroy();
}
if (m_occlusionQuerySupport)
{
m_occlusionQuery.destroy();
}
destroyMsaaFbo();
m_glctx.destroy();
m_flip = false;
unloadRenderDoc(m_renderdocdll);
}
RendererType::Enum getRendererType() const override
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
return RendererType::OpenGL;
}
return RendererType::OpenGLES;
}
const char* getRendererName() const override
{
return BGFX_RENDERER_OPENGL_NAME;
}
bool isDeviceRemoved() override
{
return false;
}
void flip() override
{
if (m_flip)
{
for (uint32_t ii = 1, num = m_numWindows; ii < num; ++ii)
{
FrameBufferGL& frameBuffer = m_frameBuffers[m_windows[ii].idx];
if (frameBuffer.m_needPresent)
{
m_glctx.swap(frameBuffer.m_swapChain);
frameBuffer.m_needPresent = false;
}
}
if (m_needPresent)
{
// Ensure the back buffer is bound as the source of the flip
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo));
m_glctx.swap();
m_needPresent = false;
}
}
}
void createIndexBuffer(IndexBufferHandle _handle, const Memory* _mem, uint16_t _flags) override
{
m_indexBuffers[_handle.idx].create(_mem->size, _mem->data, _flags);
}
void destroyIndexBuffer(IndexBufferHandle _handle) override
{
m_indexBuffers[_handle.idx].destroy();
}
void createVertexLayout(VertexLayoutHandle _handle, const VertexLayout& _layout) override
{
VertexLayout& layout = m_vertexLayouts[_handle.idx];
bx::memCopy(&layout, &_layout, sizeof(VertexLayout) );
dump(layout);
}
void destroyVertexLayout(VertexLayoutHandle /*_handle*/) override
{
}
void createVertexBuffer(VertexBufferHandle _handle, const Memory* _mem, VertexLayoutHandle _layoutHandle, uint16_t _flags) override
{
m_vertexBuffers[_handle.idx].create(_mem->size, _mem->data, _layoutHandle, _flags);
}
void destroyVertexBuffer(VertexBufferHandle _handle) override
{
m_vertexBuffers[_handle.idx].destroy();
}
void createDynamicIndexBuffer(IndexBufferHandle _handle, uint32_t _size, uint16_t _flags) override
{
m_indexBuffers[_handle.idx].create(_size, NULL, _flags);
}
void updateDynamicIndexBuffer(IndexBufferHandle _handle, uint32_t _offset, uint32_t _size, const Memory* _mem) override
{
m_indexBuffers[_handle.idx].update(_offset, bx::uint32_min(_size, _mem->size), _mem->data);
}
void destroyDynamicIndexBuffer(IndexBufferHandle _handle) override
{
m_indexBuffers[_handle.idx].destroy();
}
void createDynamicVertexBuffer(VertexBufferHandle _handle, uint32_t _size, uint16_t _flags) override
{
VertexLayoutHandle layoutHandle = BGFX_INVALID_HANDLE;
m_vertexBuffers[_handle.idx].create(_size, NULL, layoutHandle, _flags);
}
void updateDynamicVertexBuffer(VertexBufferHandle _handle, uint32_t _offset, uint32_t _size, const Memory* _mem) override
{
m_vertexBuffers[_handle.idx].update(_offset, bx::uint32_min(_size, _mem->size), _mem->data);
}
void destroyDynamicVertexBuffer(VertexBufferHandle _handle) override
{
m_vertexBuffers[_handle.idx].destroy();
}
void createShader(ShaderHandle _handle, const Memory* _mem) override
{
m_shaders[_handle.idx].create(_mem);
}
void destroyShader(ShaderHandle _handle) override
{
m_shaders[_handle.idx].destroy();
}
void createProgram(ProgramHandle _handle, ShaderHandle _vsh, ShaderHandle _fsh) override
{
ShaderGL dummyFragmentShader;
m_program[_handle.idx].create(m_shaders[_vsh.idx], isValid(_fsh) ? m_shaders[_fsh.idx] : dummyFragmentShader);
}
void destroyProgram(ProgramHandle _handle) override
{
m_program[_handle.idx].destroy();
}
void* createTexture(TextureHandle _handle, const Memory* _mem, uint64_t _flags, uint8_t _skip) override
{
m_textures[_handle.idx].create(_mem, _flags, _skip);
return NULL;
}
void updateTextureBegin(TextureHandle /*_handle*/, uint8_t /*_side*/, uint8_t /*_mip*/) override
{
}
void updateTexture(TextureHandle _handle, uint8_t _side, uint8_t _mip, const Rect& _rect, uint16_t _z, uint16_t _depth, uint16_t _pitch, const Memory* _mem) override
{
m_textures[_handle.idx].update(_side, _mip, _rect, _z, _depth, _pitch, _mem);
}
void updateTextureEnd() override
{
}
void readTexture(TextureHandle _handle, void* _data, uint8_t _mip) override
{
if (m_readBackSupported)
{
const TextureGL& texture = m_textures[_handle.idx];
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(texture.m_textureFormat) );
GL_CHECK(glBindTexture(texture.m_target, texture.m_id) );
if (compressed)
{
GL_CHECK(glGetCompressedTexImage(texture.m_target
, _mip
, _data
) );
}
else
{
GL_CHECK(glGetTexImage(texture.m_target
, _mip
, texture.m_fmt
, texture.m_type
, _data
) );
}
GL_CHECK(glBindTexture(texture.m_target, 0) );
}
else
{
const TextureGL& texture = m_textures[_handle.idx];
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(texture.m_textureFormat) );
if (!compressed)
{
Attachment at[1];
at[0].init(_handle);
FrameBufferGL frameBuffer;
frameBuffer.create(BX_COUNTOF(at), at);
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer.m_fbo[0]) );
GL_CHECK(glFramebufferTexture2D(
GL_FRAMEBUFFER
, GL_COLOR_ATTACHMENT0
, GL_TEXTURE_2D
, texture.m_id
, at[0].mip
) );
if (!BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& !BX_ENABLED(BX_PLATFORM_IOS) )
{
GL_CHECK(glReadBuffer(GL_COLOR_ATTACHMENT0) );
}
if (GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER) )
{
GL_CHECK(glReadPixels(
0
, 0
, texture.m_width
, texture.m_height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, _data
) );
}
frameBuffer.destroy();
}
}
}
void resizeTexture(TextureHandle _handle, uint16_t _width, uint16_t _height, uint8_t _numMips, uint16_t _numLayers) override
{
TextureGL& texture = m_textures[_handle.idx];
uint32_t size = sizeof(uint32_t) + sizeof(TextureCreate);
const Memory* mem = alloc(size);
bx::StaticMemoryBlockWriter writer(mem->data, mem->size);
uint32_t magic = BGFX_CHUNK_MAGIC_TEX;
bx::write(&writer, magic);
TextureCreate tc;
tc.m_width = _width;
tc.m_height = _height;
tc.m_depth = 0;
tc.m_numLayers = _numLayers;
tc.m_numMips = _numMips;
tc.m_format = TextureFormat::Enum(texture.m_requestedFormat);
tc.m_cubeMap = false;
tc.m_mem = NULL;
bx::write(&writer, tc);
texture.destroy();
texture.create(mem, texture.m_flags, 0);
release(mem);
}
void overrideInternal(TextureHandle _handle, uintptr_t _ptr) override
{
m_textures[_handle.idx].overrideInternal(_ptr);
}
uintptr_t getInternal(TextureHandle _handle) override
{
return uintptr_t(m_textures[_handle.idx].m_id);
}
void destroyTexture(TextureHandle _handle) override
{
m_textures[_handle.idx].destroy();
}
void createFrameBuffer(FrameBufferHandle _handle, uint8_t _num, const Attachment* _attachment) override
{
m_frameBuffers[_handle.idx].create(_num, _attachment);
}
void createFrameBuffer(FrameBufferHandle _handle, void* _nwh, uint32_t _width, uint32_t _height, TextureFormat::Enum _format, TextureFormat::Enum _depthFormat) override
{
uint16_t denseIdx = m_numWindows++;
m_windows[denseIdx] = _handle;
m_frameBuffers[_handle.idx].create(denseIdx, _nwh, _width, _height, _format, _depthFormat);
}
void destroyFrameBuffer(FrameBufferHandle _handle) override
{
uint16_t denseIdx = m_frameBuffers[_handle.idx].destroy();
if (UINT16_MAX != denseIdx)
{
--m_numWindows;
if (m_numWindows > 1)
{
FrameBufferHandle handle = m_windows[m_numWindows];
m_windows[m_numWindows] = {kInvalidHandle};
if (m_numWindows != denseIdx)
{
m_windows[denseIdx] = handle;
m_frameBuffers[handle.idx].m_denseIdx = denseIdx;
}
}
}
}
void createUniform(UniformHandle _handle, UniformType::Enum _type, uint16_t _num, const char* _name) override
{
if (NULL != m_uniforms[_handle.idx])
{
BX_FREE(g_allocator, m_uniforms[_handle.idx]);
}
uint32_t size = g_uniformTypeSize[_type]*_num;
void* data = BX_ALLOC(g_allocator, size);
bx::memSet(data, 0, size);
m_uniforms[_handle.idx] = data;
m_uniformReg.add(_handle, _name);
}
void destroyUniform(UniformHandle _handle) override
{
BX_FREE(g_allocator, m_uniforms[_handle.idx]);
m_uniforms[_handle.idx] = NULL;
m_uniformReg.remove(_handle);
}
void requestScreenShot(FrameBufferHandle _handle, const char* _filePath) override
{
SwapChainGL* swapChain = NULL;
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
if (isValid(_handle) )
{
const FrameBufferGL& frameBuffer = m_frameBuffers[_handle.idx];
swapChain = frameBuffer.m_swapChain;
width = frameBuffer.m_width;
height = frameBuffer.m_height;
}
m_glctx.makeCurrent(swapChain);
uint32_t length = width*height*4;
uint8_t* data = (uint8_t*)BX_ALLOC(g_allocator, length);
GL_CHECK(glReadPixels(0
, 0
, width
, height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, data
) );
if (GL_RGBA == m_readPixelsFmt)
{
bimg::imageSwizzleBgra8(data, width*4, width, height, data, width*4);
}
g_callback->screenShot(_filePath
, width
, height
, width*4
, data
, length
, true
);
BX_FREE(g_allocator, data);
}
void updateViewName(ViewId _id, const char* _name) override
{
bx::strCopy(&s_viewName[_id][BGFX_CONFIG_MAX_VIEW_NAME_RESERVED]
, BX_COUNTOF(s_viewName[0])-BGFX_CONFIG_MAX_VIEW_NAME_RESERVED
, _name
);
}
void updateUniform(uint16_t _loc, const void* _data, uint32_t _size) override
{
bx::memCopy(m_uniforms[_loc], _data, _size);
}
void invalidateOcclusionQuery(OcclusionQueryHandle _handle) override
{
m_occlusionQuery.invalidate(_handle);
}
void setMarker(const char* _marker, uint16_t _len) override
{
GL_CHECK(glInsertEventMarker(_len, _marker) );
}
virtual void setName(Handle _handle, const char* _name, uint16_t _len) override
{
uint16_t len = bx::min(_len, m_maxLabelLen);
switch (_handle.type)
{
case Handle::IndexBuffer:
GL_CHECK(glObjectLabel(GL_BUFFER, m_indexBuffers[_handle.idx].m_id, len, _name) );
break;
case Handle::Shader:
GL_CHECK(glObjectLabel(GL_SHADER, m_shaders[_handle.idx].m_id, len, _name) );
break;
case Handle::Texture:
{
GLint id = m_textures[_handle.idx].m_id;
if (0 != id)
{
GL_CHECK(glObjectLabel(GL_TEXTURE, id, len, _name) );
}
else
{
GL_CHECK(glObjectLabel(GL_RENDERBUFFER, m_textures[_handle.idx].m_rbo, len, _name) );
}
}
break;
case Handle::VertexBuffer:
GL_CHECK(glObjectLabel(GL_BUFFER, m_vertexBuffers[_handle.idx].m_id, len, _name) );
break;
default:
BX_CHECK(false, "Invalid handle type?! %d", _handle.type);
break;
}
}
void submitBlit(BlitState& _bs, uint16_t _view);
void submit(Frame* _render, ClearQuad& _clearQuad, TextVideoMemBlitter& _textVideoMemBlitter) override;
void blitSetup(TextVideoMemBlitter& _blitter) override
{
if (0 != m_vao)
{
GL_CHECK(glBindVertexArray(m_vao) );
}
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glViewport(0, 0, width, height) );
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glDisable(GL_STENCIL_TEST) );
GL_CHECK(glDisable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
GL_CHECK(glDisable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
GL_CHECK(glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE) );
ProgramGL& program = m_program[_blitter.m_program.idx];
GL_CHECK(glUseProgram(program.m_id) );
GL_CHECK(glUniform1i(program.m_sampler[0], 0) );
float proj[16];
bx::mtxOrtho(proj, 0.0f, (float)width, (float)height, 0.0f, 0.0f, 1000.0f, 0.0f, g_caps.homogeneousDepth);
GL_CHECK(glUniformMatrix4fv(program.m_predefined[0].m_loc
, 1
, GL_FALSE
, proj
) );
GL_CHECK(glActiveTexture(GL_TEXTURE0) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, m_textures[_blitter.m_texture.idx].m_id) );
if (!BX_ENABLED(BX_PLATFORM_OSX) )
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
if (m_samplerObjectSupport)
{
GL_CHECK(glBindSampler(0, 0) );
}
}
}
}
void blitRender(TextVideoMemBlitter& _blitter, uint32_t _numIndices) override
{
const uint32_t numVertices = _numIndices*4/6;
if (0 < numVertices)
{
m_indexBuffers[_blitter.m_ib->handle.idx].update(0, _numIndices*2, _blitter.m_ib->data);
m_vertexBuffers[_blitter.m_vb->handle.idx].update(0, numVertices*_blitter.m_layout.m_stride, _blitter.m_vb->data);
VertexBufferGL& vb = m_vertexBuffers[_blitter.m_vb->handle.idx];
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
IndexBufferGL& ib = m_indexBuffers[_blitter.m_ib->handle.idx];
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib.m_id) );
ProgramGL& program = m_program[_blitter.m_program.idx];
program.bindAttributesBegin();
program.bindAttributes(_blitter.m_layout, 0);
program.bindAttributesEnd();
GL_CHECK(glDrawElements(GL_TRIANGLES
, _numIndices
, GL_UNSIGNED_SHORT
, (void*)0
) );
}
}
void updateResolution(const Resolution& _resolution)
{
m_maxAnisotropy = !!(_resolution.reset & BGFX_RESET_MAXANISOTROPY)
? m_maxAnisotropyDefault
: 0.0f
;
if (s_extension[Extension::ARB_depth_clamp].m_supported)
{
if (!!(_resolution.reset & BGFX_RESET_DEPTH_CLAMP) )
{
GL_CHECK(glEnable(GL_DEPTH_CLAMP) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_CLAMP) );
}
}
const uint32_t maskFlags = ~(0
| BGFX_RESET_MAXANISOTROPY
| BGFX_RESET_DEPTH_CLAMP
| BGFX_RESET_SUSPEND
);
if (m_resolution.width != _resolution.width
|| m_resolution.height != _resolution.height
|| (m_resolution.reset&maskFlags) != (_resolution.reset&maskFlags) )
{
uint32_t flags = _resolution.reset & (~BGFX_RESET_INTERNAL_FORCE);
m_resolution = _resolution;
m_resolution.reset = flags;
m_textVideoMem.resize(false, _resolution.width, _resolution.height);
m_textVideoMem.clear();
setRenderContextSize(m_resolution.width
, m_resolution.height
, flags
);
updateCapture();
for (uint32_t ii = 0; ii < BX_COUNTOF(m_frameBuffers); ++ii)
{
m_frameBuffers[ii].postReset();
}
m_currentFbo = 0;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_currentFbo) );
}
}
void setShaderUniform4f(uint8_t /*_flags*/, uint32_t _regIndex, const void* _val, uint32_t _numRegs)
{
GL_CHECK(glUniform4fv(_regIndex
, _numRegs
, (const GLfloat*)_val
) );
}
void setShaderUniform4x4f(uint8_t /*_flags*/, uint32_t _regIndex, const void* _val, uint32_t _numRegs)
{
GL_CHECK(glUniformMatrix4fv(_regIndex
, _numRegs
, GL_FALSE
, (const GLfloat*)_val
) );
}
uint32_t setFrameBuffer(FrameBufferHandle _fbh, uint32_t _height, uint16_t _discard = BGFX_CLEAR_NONE, bool _msaa = true)
{
if (isValid(m_fbh)
&& m_fbh.idx != _fbh.idx)
{
FrameBufferGL& frameBuffer = m_frameBuffers[m_fbh.idx];
frameBuffer.resolve();
if (BGFX_CLEAR_NONE != m_fbDiscard)
{
frameBuffer.discard(m_fbDiscard);
m_fbDiscard = BGFX_CLEAR_NONE;
}
}
m_glctx.makeCurrent(NULL);
if (!isValid(_fbh) )
{
m_needPresent |= true;
m_currentFbo = m_msaaBackBufferFbo;
if (m_srgbWriteControlSupport)
{
if (0 != (m_resolution.reset & BGFX_RESET_SRGB_BACKBUFFER) )
{
GL_CHECK(glEnable(GL_FRAMEBUFFER_SRGB) );
}
else
{
GL_CHECK(glDisable(GL_FRAMEBUFFER_SRGB) );
}
}
}
else
{
FrameBufferGL& frameBuffer = m_frameBuffers[_fbh.idx];
_height = frameBuffer.m_height;
if (UINT16_MAX != frameBuffer.m_denseIdx)
{
m_glctx.makeCurrent(frameBuffer.m_swapChain);
GL_CHECK(glFrontFace(GL_CW) );
frameBuffer.m_needPresent = true;
m_currentFbo = 0;
}
else
{
m_glctx.makeCurrent(NULL);
m_currentFbo = frameBuffer.m_fbo[0];
}
frameBuffer.set();
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_currentFbo) );
m_fbh = _fbh;
m_fbDiscard = _discard;
m_rtMsaa = _msaa;
return _height;
}
uint32_t getNumRt() const
{
if (isValid(m_fbh) )
{
const FrameBufferGL& frameBuffer = m_frameBuffers[m_fbh.idx];
return frameBuffer.m_num;
}
return 1;
}
void createMsaaFbo(uint32_t _width, uint32_t _height, uint32_t _msaa)
{
if (0 == m_msaaBackBufferFbo // iOS
&& 1 < _msaa)
{
GLenum storageFormat = (m_resolution.reset & BGFX_RESET_SRGB_BACKBUFFER)
? GL_SRGB8_ALPHA8
: GL_RGBA8
;
GL_CHECK(glGenFramebuffers(1, &m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glGenRenderbuffers(BX_COUNTOF(m_msaaBackBufferRbos), m_msaaBackBufferRbos) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, storageFormat, _width, _height) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_DEPTH24_STENCIL8, _width, _height) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GLenum attachment = BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
? GL_DEPTH_STENCIL_ATTACHMENT
: GL_DEPTH_ATTACHMENT
;
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
BX_CHECK(GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER)
, "glCheckFramebufferStatus failed 0x%08x"
, glCheckFramebufferStatus(GL_FRAMEBUFFER)
);
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
}
}
void destroyMsaaFbo()
{
if (m_backBufferFbo != m_msaaBackBufferFbo // iOS
&& 0 != m_msaaBackBufferFbo)
{
GL_CHECK(glDeleteFramebuffers(1, &m_msaaBackBufferFbo) );
m_msaaBackBufferFbo = 0;
if (0 != m_msaaBackBufferRbos[0])
{
GL_CHECK(glDeleteRenderbuffers(BX_COUNTOF(m_msaaBackBufferRbos), m_msaaBackBufferRbos) );
m_msaaBackBufferRbos[0] = 0;
m_msaaBackBufferRbos[1] = 0;
}
}
}
void blitMsaaFbo()
{
if (m_backBufferFbo != m_msaaBackBufferFbo // iOS
&& 0 != m_msaaBackBufferFbo)
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0) );
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
GLenum filter = BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30)
? GL_NEAREST
: GL_LINEAR
;
GL_CHECK(glBlitFramebuffer(0
, 0
, width
, height
, 0
, 0
, width
, height
, GL_COLOR_BUFFER_BIT
, filter
) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
}
}
void setRenderContextSize(uint32_t _width, uint32_t _height, uint32_t _flags = 0)
{
if (_width != 0
|| _height != 0)
{
if (!m_glctx.isValid() )
{
m_glctx.create(_width, _height);
#if BX_PLATFORM_IOS
// iOS: need to figure out how to deal with FBO created by context.
m_backBufferFbo = m_msaaBackBufferFbo = m_glctx.getFbo();
#endif // BX_PLATFORM_IOS
}
else
{
destroyMsaaFbo();
m_glctx.resize(_width, _height, _flags);
uint32_t msaa = (_flags&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;
msaa = bx::uint32_min(m_maxMsaa, msaa == 0 ? 0 : 1<<msaa);
createMsaaFbo(_width, _height, msaa);
}
}
m_flip = true;
}
void invalidateCache()
{
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
&& m_samplerObjectSupport)
{
m_samplerStateCache.invalidate();
}
}
void setSamplerState(uint32_t _stage, uint32_t _numMips, uint32_t _flags, const float _rgba[4])
{
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
&& m_samplerObjectSupport)
{
if (0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags) )
{
const uint32_t index = (_flags & BGFX_SAMPLER_BORDER_COLOR_MASK) >> BGFX_SAMPLER_BORDER_COLOR_SHIFT;
_flags &= ~BGFX_SAMPLER_RESERVED_MASK;
_flags &= BGFX_SAMPLER_BITS_MASK;
_flags |= _numMips<<BGFX_SAMPLER_RESERVED_SHIFT;
GLuint sampler;
bool hasBorderColor = false;
bx::HashMurmur2A murmur;
uint32_t hash;
murmur.begin();
murmur.add(_flags);
if (!needBorderColor(_flags) )
{
murmur.add(-1);
hash = murmur.end();
sampler = m_samplerStateCache.find(hash);
}
else
{
murmur.add(index);
hash = murmur.end();
if (NULL != _rgba)
{
hasBorderColor = true;
sampler = UINT32_MAX;
}
else
{
sampler = m_samplerStateCache.find(hash);
}
}
if (UINT32_MAX == sampler)
{
sampler = m_samplerStateCache.add(hash);
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_S
, s_textureAddress[(_flags&BGFX_SAMPLER_U_MASK)>>BGFX_SAMPLER_U_SHIFT]
) );
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_T
, s_textureAddress[(_flags&BGFX_SAMPLER_V_MASK)>>BGFX_SAMPLER_V_SHIFT]
) );
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_R
, s_textureAddress[(_flags&BGFX_SAMPLER_W_MASK)>>BGFX_SAMPLER_W_SHIFT]
) );
GLenum minFilter;
GLenum magFilter;
getFilters(_flags, 1 < _numMips, magFilter, minFilter);
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_MAG_FILTER, magFilter) );
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_MIN_FILTER, minFilter) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
GL_CHECK(glSamplerParameterf(sampler, GL_TEXTURE_LOD_BIAS, float(BGFX_CONFIG_MIP_LOD_BIAS) ) );
}
if (m_borderColorSupport
&& hasBorderColor)
{
GL_CHECK(glSamplerParameterfv(sampler, GL_TEXTURE_BORDER_COLOR, _rgba) );
}
if (0 != (_flags & (BGFX_SAMPLER_MIN_ANISOTROPIC|BGFX_SAMPLER_MAG_ANISOTROPIC) )
&& 0.0f < m_maxAnisotropy)
{
GL_CHECK(glSamplerParameterf(sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, m_maxAnisotropy) );
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| m_shadowSamplersSupport)
{
const uint32_t cmpFunc = (_flags&BGFX_SAMPLER_COMPARE_MASK)>>BGFX_SAMPLER_COMPARE_SHIFT;
if (0 == cmpFunc)
{
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_MODE, GL_NONE) );
}
else
{
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE) );
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_FUNC, s_cmpFunc[cmpFunc]) );
}
}
}
GL_CHECK(glBindSampler(_stage, sampler) );
}
else
{
GL_CHECK(glBindSampler(_stage, 0) );
}
}
}
bool isVisible(Frame* _render, OcclusionQueryHandle _handle, bool _visible)
{
m_occlusionQuery.resolve(_render);
return _visible == (0 != _render->m_occlusion[_handle.idx]);
}
void updateCapture()
{
if (m_resolution.reset&BGFX_RESET_CAPTURE)
{
m_captureSize = m_resolution.width*m_resolution.height*4;
m_capture = BX_REALLOC(g_allocator, m_capture, m_captureSize);
g_callback->captureBegin(m_resolution.width, m_resolution.height, m_resolution.width*4, TextureFormat::BGRA8, true);
}
else
{
captureFinish();
}
}
void capture()
{
if (NULL != m_capture)
{
GL_CHECK(glReadPixels(0
, 0
, m_resolution.width
, m_resolution.height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, m_capture
) );
if (GL_RGBA == m_readPixelsFmt)
{
bimg::imageSwizzleBgra8(
m_capture
, m_resolution.width*4
, m_resolution.width
, m_resolution.height
, m_capture
, m_resolution.width*4
);
}
g_callback->captureFrame(m_capture, m_captureSize);
}
}
void captureFinish()
{
if (NULL != m_capture)
{
g_callback->captureEnd();
BX_FREE(g_allocator, m_capture);
m_capture = NULL;
m_captureSize = 0;
}
}
bool programFetchFromCache(GLuint programId, uint64_t _id)
{
_id ^= m_hash;
bool cached = false;
if (m_programBinarySupport)
{
uint32_t length = g_callback->cacheReadSize(_id);
cached = length > 0;
if (cached)
{
void* data = BX_ALLOC(g_allocator, length);
if (g_callback->cacheRead(_id, data, length) )
{
bx::MemoryReader reader(data, length);
GLenum format;
bx::read(&reader, format);
GL_CHECK(glProgramBinary(programId, format, reader.getDataPtr(), (GLsizei)reader.remaining() ) );
}
BX_FREE(g_allocator, data);
}
#if BGFX_CONFIG_RENDERER_OPENGL
GL_CHECK(glProgramParameteri(programId, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE) );
#endif // BGFX_CONFIG_RENDERER_OPENGL
}
return cached;
}
void programCache(GLuint programId, uint64_t _id)
{
_id ^= m_hash;
if (m_programBinarySupport)
{
GLint programLength;
GLenum format;
GL_CHECK(glGetProgramiv(programId, GL_PROGRAM_BINARY_LENGTH, &programLength) );
if (0 < programLength)
{
uint32_t length = programLength + 4;
uint8_t* data = (uint8_t*)BX_ALLOC(g_allocator, length);
GL_CHECK(glGetProgramBinary(programId, programLength, NULL, &format, &data[4]) );
*(uint32_t*)data = format;
g_callback->cacheWrite(_id, data, length);
BX_FREE(g_allocator, data);
}
}
}
void commit(UniformBuffer& _uniformBuffer)
{
_uniformBuffer.reset();
for (;;)
{
uint32_t opcode = _uniformBuffer.read();
if (UniformType::End == opcode)
{
break;
}
UniformType::Enum type;
uint16_t ignore;
uint16_t num;
uint16_t copy;
UniformBuffer::decodeOpcode(opcode, type, ignore, num, copy);
const char* data;
if (copy)
{
data = _uniformBuffer.read(g_uniformTypeSize[type]*num);
}
else
{
UniformHandle handle;
bx::memCopy(&handle, _uniformBuffer.read(sizeof(UniformHandle) ), sizeof(UniformHandle) );
data = (const char*)m_uniforms[handle.idx];
}
uint32_t loc = _uniformBuffer.read();
#define CASE_IMPLEMENT_UNIFORM(_uniform, _glsuffix, _dxsuffix, _type) \
case UniformType::_uniform: \
{ \
_type* value = (_type*)data; \
GL_CHECK(glUniform##_glsuffix(loc, num, value) ); \
} \
break;
#define CASE_IMPLEMENT_UNIFORM_T(_uniform, _glsuffix, _dxsuffix, _type) \
case UniformType::_uniform: \
{ \
_type* value = (_type*)data; \
GL_CHECK(glUniform##_glsuffix(loc, num, GL_FALSE, value) ); \
} \
break;
switch (type)
{
CASE_IMPLEMENT_UNIFORM(Sampler, 1iv, I, int);
CASE_IMPLEMENT_UNIFORM(Vec4, 4fv, F, float);
CASE_IMPLEMENT_UNIFORM_T(Mat3, Matrix3fv, F, float);
CASE_IMPLEMENT_UNIFORM_T(Mat4, Matrix4fv, F, float);
case UniformType::End:
break;
default:
BX_TRACE("%4d: INVALID 0x%08x, t %d, l %d, n %d, c %d", _uniformBuffer.getPos(), opcode, type, loc, num, copy);
break;
}
#undef CASE_IMPLEMENT_UNIFORM
#undef CASE_IMPLEMENT_UNIFORM_T
}
}
void clearQuad(ClearQuad& _clearQuad, const Rect& _rect, const Clear& _clear, uint32_t _height, const float _palette[][4])
{
uint32_t numMrt = 1;
FrameBufferHandle fbh = m_fbh;
if (isValid(fbh) )
{
const FrameBufferGL& fb = m_frameBuffers[fbh.idx];
numMrt = bx::uint32_max(1, fb.m_num);
}
if (1 == numMrt)
{
GLuint flags = 0;
if (BGFX_CLEAR_COLOR & _clear.m_flags)
{
if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
{
uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[0]);
const float* rgba = _palette[index];
const float rr = rgba[0];
const float gg = rgba[1];
const float bb = rgba[2];
const float aa = rgba[3];
GL_CHECK(glClearColor(rr, gg, bb, aa) );
}
else
{
float rr = _clear.m_index[0]*1.0f/255.0f;
float gg = _clear.m_index[1]*1.0f/255.0f;
float bb = _clear.m_index[2]*1.0f/255.0f;
float aa = _clear.m_index[3]*1.0f/255.0f;
GL_CHECK(glClearColor(rr, gg, bb, aa) );
}
flags |= GL_COLOR_BUFFER_BIT;
GL_CHECK(glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE) );
}
if (BGFX_CLEAR_DEPTH & _clear.m_flags)
{
flags |= GL_DEPTH_BUFFER_BIT;
GL_CHECK(glClearDepth(_clear.m_depth) );
GL_CHECK(glDepthMask(GL_TRUE) );
}
if (BGFX_CLEAR_STENCIL & _clear.m_flags)
{
flags |= GL_STENCIL_BUFFER_BIT;
GL_CHECK(glClearStencil(_clear.m_stencil) );
}
if (0 != flags)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(_rect.m_x, _height-_rect.m_height-_rect.m_y, _rect.m_width, _rect.m_height) );
GL_CHECK(glClear(flags) );
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
}
else
{
const GLuint defaultVao = m_vao;
if (0 != defaultVao)
{
GL_CHECK(glBindVertexArray(defaultVao) );
}
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glDisable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
GLboolean colorMask = !!(BGFX_CLEAR_COLOR & _clear.m_flags);
GL_CHECK(glColorMask(colorMask, colorMask, colorMask, colorMask) );
if (BGFX_CLEAR_DEPTH & _clear.m_flags)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
GL_CHECK(glDepthMask(GL_TRUE) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_TEST) );
}
if (BGFX_CLEAR_STENCIL & _clear.m_flags)
{
GL_CHECK(glEnable(GL_STENCIL_TEST) );
GL_CHECK(glStencilFuncSeparate(GL_FRONT_AND_BACK, GL_ALWAYS, _clear.m_stencil, 0xff) );
GL_CHECK(glStencilOpSeparate(GL_FRONT_AND_BACK, GL_REPLACE, GL_REPLACE, GL_REPLACE) );
}
else
{
GL_CHECK(glDisable(GL_STENCIL_TEST) );
}
VertexBufferGL& vb = m_vertexBuffers[_clearQuad.m_vb.idx];
VertexLayout& layout = _clearQuad.m_layout;
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
ProgramGL& program = m_program[_clearQuad.m_program[numMrt-1].idx];
GL_CHECK(glUseProgram(program.m_id) );
program.bindAttributesBegin();
program.bindAttributes(layout, 0);
program.bindAttributesEnd();
if (m_clearQuadColor.idx == kInvalidHandle)
{
const UniformRegInfo* infoClearColor = m_uniformReg.find("bgfx_clear_color");
if (NULL != infoClearColor)
m_clearQuadColor = infoClearColor->m_handle;
}
if (m_clearQuadDepth.idx == kInvalidHandle)
{
const UniformRegInfo* infoClearDepth = m_uniformReg.find("bgfx_clear_depth");
if (NULL != infoClearDepth)
m_clearQuadDepth = infoClearDepth->m_handle;
}
float mrtClearDepth[4] = { g_caps.homogeneousDepth ? (_clear.m_depth * 2.0f - 1.0f) : _clear.m_depth };
updateUniform(m_clearQuadDepth.idx, mrtClearDepth, sizeof(float)*4);
float mrtClearColor[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
{
for (uint32_t ii = 0; ii < numMrt; ++ii)
{
uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[ii]);
bx::memCopy(mrtClearColor[ii], _palette[index], 16);
}
}
else
{
float rgba[4] =
{
_clear.m_index[0] * 1.0f / 255.0f,
_clear.m_index[1] * 1.0f / 255.0f,
_clear.m_index[2] * 1.0f / 255.0f,
_clear.m_index[3] * 1.0f / 255.0f,
};
for (uint32_t ii = 0; ii < numMrt; ++ii)
{
bx::memCopy(mrtClearColor[ii], rgba, 16);
}
}
updateUniform(m_clearQuadColor.idx, mrtClearColor[0], numMrt * sizeof(float) * 4);
commit(*program.m_constantBuffer);
GL_CHECK(glDrawArrays(GL_TRIANGLE_STRIP
, 0
, 4
) );
}
}
void* m_renderdocdll;
uint16_t m_numWindows;
FrameBufferHandle m_windows[BGFX_CONFIG_MAX_FRAME_BUFFERS];
IndexBufferGL m_indexBuffers[BGFX_CONFIG_MAX_INDEX_BUFFERS];
VertexBufferGL m_vertexBuffers[BGFX_CONFIG_MAX_VERTEX_BUFFERS];
ShaderGL m_shaders[BGFX_CONFIG_MAX_SHADERS];
ProgramGL m_program[BGFX_CONFIG_MAX_PROGRAMS];
TextureGL m_textures[BGFX_CONFIG_MAX_TEXTURES];
VertexLayout m_vertexLayouts[BGFX_CONFIG_MAX_VERTEX_LAYOUTS];
FrameBufferGL m_frameBuffers[BGFX_CONFIG_MAX_FRAME_BUFFERS];
UniformRegistry m_uniformReg;
void* m_uniforms[BGFX_CONFIG_MAX_UNIFORMS];
TimerQueryGL m_gpuTimer;
OcclusionQueryGL m_occlusionQuery;
SamplerStateCache m_samplerStateCache;
TextVideoMem m_textVideoMem;
bool m_rtMsaa;
FrameBufferHandle m_fbh;
uint16_t m_fbDiscard;
Resolution m_resolution;
void* m_capture;
uint32_t m_captureSize;
float m_maxAnisotropy;
float m_maxAnisotropyDefault;
int32_t m_maxMsaa;
GLuint m_vao;
uint16_t m_maxLabelLen;
bool m_blitSupported;
bool m_readBackSupported;
bool m_vaoSupport;
bool m_samplerObjectSupport;
bool m_shadowSamplersSupport;
bool m_srgbWriteControlSupport;
bool m_borderColorSupport;
bool m_programBinarySupport;
bool m_textureSwizzleSupport;
bool m_depthTextureSupport;
bool m_timerQuerySupport;
bool m_occlusionQuerySupport;
bool m_atocSupport;
bool m_conservativeRasterSupport;
bool m_imageLoadStoreSupport;
bool m_flip;
uint64_t m_hash;
GLenum m_readPixelsFmt;
GLuint m_backBufferFbo;
GLuint m_msaaBackBufferFbo;
GLuint m_msaaBackBufferRbos[2];
GlContext m_glctx;
bool m_needPresent;
UniformHandle m_clearQuadColor;
UniformHandle m_clearQuadDepth;
const char* m_vendor;
const char* m_renderer;
const char* m_version;
const char* m_glslVersion;
Workaround m_workaround;
GLuint m_currentFbo;
};
RendererContextGL* s_renderGL;
RendererContextI* rendererCreate(const Init& _init)
{
s_renderGL = BX_NEW(g_allocator, RendererContextGL);
if (!s_renderGL->init(_init) )
{
BX_DELETE(g_allocator, s_renderGL);
s_renderGL = NULL;
}
return s_renderGL;
}
void rendererDestroy()
{
s_renderGL->shutdown();
BX_DELETE(g_allocator, s_renderGL);
s_renderGL = NULL;
}
static void frameBufferValidate()
{
GLenum complete = glCheckFramebufferStatus(GL_FRAMEBUFFER);
BX_CHECK(GL_FRAMEBUFFER_COMPLETE == complete
, "glCheckFramebufferStatus failed 0x%08x: %s"
, complete
, glEnumName(complete)
);
BX_UNUSED(complete);
}
const char* glslTypeName(GLuint _type)
{
#define GLSL_TYPE(_ty) case _ty: return #_ty
switch (_type)
{
GLSL_TYPE(GL_BOOL);
GLSL_TYPE(GL_INT);
GLSL_TYPE(GL_INT_VEC2);
GLSL_TYPE(GL_INT_VEC3);
GLSL_TYPE(GL_INT_VEC4);
GLSL_TYPE(GL_UNSIGNED_INT);
GLSL_TYPE(GL_UNSIGNED_INT_VEC2);
GLSL_TYPE(GL_UNSIGNED_INT_VEC3);
GLSL_TYPE(GL_UNSIGNED_INT_VEC4);
GLSL_TYPE(GL_FLOAT);
GLSL_TYPE(GL_FLOAT_VEC2);
GLSL_TYPE(GL_FLOAT_VEC3);
GLSL_TYPE(GL_FLOAT_VEC4);
GLSL_TYPE(GL_FLOAT_MAT2);
GLSL_TYPE(GL_FLOAT_MAT3);
GLSL_TYPE(GL_FLOAT_MAT4);
GLSL_TYPE(GL_SAMPLER_2D);
GLSL_TYPE(GL_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_INT_SAMPLER_2D);
GLSL_TYPE(GL_INT_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_INT_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_SAMPLER_2D_SHADOW);
GLSL_TYPE(GL_SAMPLER_2D_ARRAY_SHADOW);
GLSL_TYPE(GL_SAMPLER_3D);
GLSL_TYPE(GL_INT_SAMPLER_3D);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_3D);
GLSL_TYPE(GL_SAMPLER_CUBE);
GLSL_TYPE(GL_INT_SAMPLER_CUBE);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_CUBE);
GLSL_TYPE(GL_IMAGE_1D);
GLSL_TYPE(GL_INT_IMAGE_1D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_1D);
GLSL_TYPE(GL_IMAGE_2D);
GLSL_TYPE(GL_IMAGE_2D_ARRAY);
GLSL_TYPE(GL_INT_IMAGE_2D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_2D);
GLSL_TYPE(GL_IMAGE_3D);
GLSL_TYPE(GL_INT_IMAGE_3D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_3D);
GLSL_TYPE(GL_IMAGE_CUBE);
GLSL_TYPE(GL_INT_IMAGE_CUBE);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_CUBE);
}
#undef GLSL_TYPE
BX_CHECK(false, "Unknown GLSL type? %x", _type);
return "UNKNOWN GLSL TYPE!";
}
const char* glEnumName(GLenum _enum)
{
#define GLENUM(_ty) case _ty: return #_ty
switch (_enum)
{
GLENUM(GL_TEXTURE);
GLENUM(GL_RENDERBUFFER);
GLENUM(GL_INVALID_ENUM);
GLENUM(GL_INVALID_FRAMEBUFFER_OPERATION);
GLENUM(GL_INVALID_VALUE);
GLENUM(GL_INVALID_OPERATION);
GLENUM(GL_OUT_OF_MEMORY);
GLENUM(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT);
GLENUM(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT);
// GLENUM(GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER);
// GLENUM(GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER);
GLENUM(GL_FRAMEBUFFER_UNSUPPORTED);
}
#undef GLENUM
BX_WARN(false, "Unknown enum? %x", _enum);
return "<GLenum?>";
}
UniformType::Enum convertGlType(GLenum _type)
{
switch (_type)
{
case GL_INT:
case GL_UNSIGNED_INT:
return UniformType::Sampler;
case GL_FLOAT:
case GL_FLOAT_VEC2:
case GL_FLOAT_VEC3:
case GL_FLOAT_VEC4:
return UniformType::Vec4;
case GL_FLOAT_MAT2:
break;
case GL_FLOAT_MAT3:
return UniformType::Mat3;
case GL_FLOAT_MAT4:
return UniformType::Mat4;
case GL_SAMPLER_2D:
case GL_SAMPLER_2D_ARRAY:
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D:
case GL_INT_SAMPLER_2D_ARRAY:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D:
case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
case GL_SAMPLER_2D_SHADOW:
case GL_SAMPLER_2D_ARRAY_SHADOW:
case GL_SAMPLER_3D:
case GL_INT_SAMPLER_3D:
case GL_UNSIGNED_INT_SAMPLER_3D:
case GL_SAMPLER_CUBE:
case GL_INT_SAMPLER_CUBE:
case GL_UNSIGNED_INT_SAMPLER_CUBE:
case GL_IMAGE_1D:
case GL_INT_IMAGE_1D:
case GL_UNSIGNED_INT_IMAGE_1D:
case GL_IMAGE_2D:
case GL_IMAGE_2D_ARRAY:
case GL_INT_IMAGE_2D:
case GL_UNSIGNED_INT_IMAGE_2D:
case GL_IMAGE_3D:
case GL_INT_IMAGE_3D:
case GL_UNSIGNED_INT_IMAGE_3D:
case GL_IMAGE_CUBE:
case GL_INT_IMAGE_CUBE:
case GL_UNSIGNED_INT_IMAGE_CUBE:
return UniformType::Sampler;
};
BX_CHECK(false, "Unrecognized GL type 0x%04x.", _type);
return UniformType::End;
}
void ProgramGL::create(const ShaderGL& _vsh, const ShaderGL& _fsh)
{
m_id = glCreateProgram();
BX_TRACE("Program create: GL%d: GL%d, GL%d", m_id, _vsh.m_id, _fsh.m_id);
const uint64_t id = (uint64_t(_vsh.m_hash)<<32) | _fsh.m_hash;
const bool cached = s_renderGL->programFetchFromCache(m_id, id);
if (!cached)
{
GLint linked = 0;
if (0 != _vsh.m_id)
{
GL_CHECK(glAttachShader(m_id, _vsh.m_id) );
if (0 != _fsh.m_id)
{
GL_CHECK(glAttachShader(m_id, _fsh.m_id) );
}
GL_CHECK(glLinkProgram(m_id) );
GL_CHECK(glGetProgramiv(m_id, GL_LINK_STATUS, &linked) );
if (0 == linked)
{
char log[1024];
GL_CHECK(glGetProgramInfoLog(m_id, sizeof(log), NULL, log) );
BX_TRACE("%d: %s", linked, log);
}
}
if (0 == linked)
{
BX_WARN(0 != _vsh.m_id, "Invalid vertex/compute shader.");
GL_CHECK(glDeleteProgram(m_id) );
m_usedCount = 0;
m_id = 0;
return;
}
s_renderGL->programCache(m_id, id);
}
init();
if (!cached
&& s_renderGL->m_workaround.m_detachShader)
{
// Must be after init, otherwise init might fail to lookup shader
// info (NVIDIA Tegra 3 OpenGL ES 2.0 14.01003).
GL_CHECK(glDetachShader(m_id, _vsh.m_id) );
if (0 != _fsh.m_id)
{
GL_CHECK(glDetachShader(m_id, _fsh.m_id) );
}
}
}
void ProgramGL::destroy()
{
if (NULL != m_constantBuffer)
{
UniformBuffer::destroy(m_constantBuffer);
m_constantBuffer = NULL;
}
m_numPredefined = 0;
if (0 != m_id)
{
GL_CHECK(glUseProgram(0) );
GL_CHECK(glDeleteProgram(m_id) );
m_id = 0;
}
}
void ProgramGL::init()
{
GLint activeAttribs = 0;
GLint activeUniforms = 0;
GLint activeBuffers = 0;
#if BGFX_CONFIG_RENDERER_OPENGL >= 31
GL_CHECK(glBindFragDataLocation(m_id, 0, "bgfx_FragColor") );
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
GLint max0, max1;
bool piqSupported = true
&& s_extension[Extension::ARB_program_interface_query ].m_supported
&& s_extension[Extension::ARB_shader_storage_buffer_object].m_supported
;
if (piqSupported)
{
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_PROGRAM_INPUT, GL_ACTIVE_RESOURCES, &activeAttribs ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_UNIFORM, GL_ACTIVE_RESOURCES, &activeUniforms) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_BUFFER_VARIABLE, GL_ACTIVE_RESOURCES, &activeBuffers ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_PROGRAM_INPUT, GL_MAX_NAME_LENGTH, &max0 ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_UNIFORM, GL_MAX_NAME_LENGTH, &max1 ) );
}
else
{
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_ATTRIBUTES, &activeAttribs ) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_UNIFORMS, &activeUniforms) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max0) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max1) );
}
uint32_t maxLength = bx::uint32_max(max0, max1);
char* name = (char*)alloca(maxLength + 1);
BX_TRACE("Program %d", m_id);
BX_TRACE("Attributes (%d):", activeAttribs);
for (int32_t ii = 0; ii < activeAttribs; ++ii)
{
GLint size;
GLenum type = 0;
if (piqSupported)
{
GL_CHECK(glGetProgramResourceName(m_id, GL_PROGRAM_INPUT, ii, maxLength + 1, &size, name) );
GLenum typeProp[] = { GL_TYPE };
GL_CHECK(glGetProgramResourceiv(m_id
, GL_PROGRAM_INPUT
, ii
, BX_COUNTOF(typeProp)
, typeProp
, 1
, NULL
, (GLint *)&type)
);
}
else
{
GL_CHECK(glGetActiveAttrib(m_id, ii, maxLength + 1, NULL, &size, &type, name) );
}
BX_TRACE("\t%s %s is at location %d"
, glslTypeName(type)
, name
, glGetAttribLocation(m_id, name)
);
}
m_numPredefined = 0;
m_numSamplers = 0;
BX_TRACE("Uniforms (%d):", activeUniforms);
for (int32_t ii = 0; ii < activeUniforms; ++ii)
{
struct VariableInfo
{
GLenum type;
GLint loc;
GLint num;
};
VariableInfo vi;
GLenum props[] = { GL_TYPE, GL_LOCATION, GL_ARRAY_SIZE };
GLenum gltype;
GLint num;
GLint loc;
if (piqSupported)
{
GL_CHECK(glGetProgramResourceiv(m_id
, GL_UNIFORM
, ii
, BX_COUNTOF(props)
, props
, BX_COUNTOF(props)
, NULL
, (GLint*)&vi
) );
GL_CHECK(glGetProgramResourceName(m_id
, GL_UNIFORM
, ii
, maxLength + 1
, NULL
, name
) );
gltype = vi.type;
loc = vi.loc;
num = vi.num;
}
else
{
GL_CHECK(glGetActiveUniform(m_id, ii, maxLength + 1, NULL, &num, &gltype, name) );
loc = glGetUniformLocation(m_id, name);
}
num = bx::uint32_max(num, 1);
int32_t offset = 0;
const bx::StringView array = bx::strFind(name, '[');
if (!array.isEmpty() )
{
name[array.getPtr() - name] = '\0';
BX_TRACE("--- %s", name);
const bx::StringView end = bx::strFind(array.getPtr()+1, ']');
bx::fromString(&offset, bx::StringView(array.getPtr()+1, end.getPtr() ) );
}
switch (gltype)
{
case GL_SAMPLER_2D:
case GL_SAMPLER_2D_ARRAY:
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D:
case GL_INT_SAMPLER_2D_ARRAY:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D:
case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
case GL_SAMPLER_2D_SHADOW:
case GL_SAMPLER_2D_ARRAY_SHADOW:
case GL_SAMPLER_3D:
case GL_INT_SAMPLER_3D:
case GL_UNSIGNED_INT_SAMPLER_3D:
case GL_SAMPLER_CUBE:
case GL_INT_SAMPLER_CUBE:
case GL_UNSIGNED_INT_SAMPLER_CUBE:
case GL_IMAGE_1D:
case GL_INT_IMAGE_1D:
case GL_UNSIGNED_INT_IMAGE_1D:
case GL_IMAGE_2D:
case GL_INT_IMAGE_2D:
case GL_UNSIGNED_INT_IMAGE_2D:
case GL_IMAGE_3D:
case GL_INT_IMAGE_3D:
case GL_UNSIGNED_INT_IMAGE_3D:
case GL_IMAGE_CUBE:
case GL_INT_IMAGE_CUBE:
case GL_UNSIGNED_INT_IMAGE_CUBE:
if (m_numSamplers < BX_COUNTOF(m_sampler) )
{
BX_TRACE("Sampler #%d at location %d.", m_numSamplers, loc);
m_sampler[m_numSamplers] = loc;
m_numSamplers++;
}
else
{
BX_TRACE("Too many samplers (max: %d)! Sampler at location %d."
, BX_COUNTOF(m_sampler)
, loc
);
}
break;
default:
break;
}
PredefinedUniform::Enum predefined = nameToPredefinedUniformEnum(name);
if (PredefinedUniform::Count != predefined)
{
m_predefined[m_numPredefined].m_loc = loc;
m_predefined[m_numPredefined].m_count = uint16_t(num);
m_predefined[m_numPredefined].m_type = uint8_t(predefined);
m_numPredefined++;
}
else
{
const UniformRegInfo* info = s_renderGL->m_uniformReg.find(name);
BX_WARN(NULL != info, "User defined uniform '%s' is not found, it won't be set.", name);
if (NULL != info)
{
if (NULL == m_constantBuffer)
{
m_constantBuffer = UniformBuffer::create(1024);
}
UniformType::Enum type = convertGlType(gltype);
m_constantBuffer->writeUniformHandle(type, 0, info->m_handle, uint16_t(num) );
m_constantBuffer->write(loc);
BX_TRACE("store %s %d", name, info->m_handle);
}
}
BX_TRACE("\tuniform %s %s%s is at location %d, size %d, offset %d"
, glslTypeName(gltype)
, name
, PredefinedUniform::Count != predefined ? "*" : ""
, loc
, num
, offset
);
BX_UNUSED(offset);
}
if (NULL != m_constantBuffer)
{
m_constantBuffer->finish();
}
if (piqSupported)
{
struct VariableInfo
{
GLenum type;
};
VariableInfo vi;
GLenum props[] = { GL_TYPE };
BX_TRACE("Buffers (%d):", activeBuffers);
for (int32_t ii = 0; ii < activeBuffers; ++ii)
{
GL_CHECK(glGetProgramResourceiv(m_id
, GL_BUFFER_VARIABLE
, ii
, BX_COUNTOF(props)
, props
, BX_COUNTOF(props)
, NULL
, (GLint*)&vi
) );
GL_CHECK(glGetProgramResourceName(m_id
, GL_BUFFER_VARIABLE
, ii
, maxLength + 1
, NULL
, name
) );
BX_TRACE("\t%s %s at %d"
, glslTypeName(vi.type)
, name
, 0 //vi.loc
);
}
}
bx::memSet(m_attributes, 0xff, sizeof(m_attributes) );
uint32_t used = 0;
for (uint8_t ii = 0; ii < Attrib::Count; ++ii)
{
GLint loc = glGetAttribLocation(m_id, s_attribName[ii]);
if (-1 != loc)
{
BX_TRACE("attr %s: %d", s_attribName[ii], loc);
m_attributes[ii] = loc;
m_used[used++] = ii;
}
}
BX_CHECK(used < BX_COUNTOF(m_used), "Out of bounds %d > array size %d.", used, Attrib::Count);
m_usedCount = (uint8_t)used;
used = 0;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_instanceDataName); ++ii)
{
GLuint loc = glGetAttribLocation(m_id, s_instanceDataName[ii]);
if (GLuint(-1) != loc )
{
BX_TRACE("instance data %s: %d", s_instanceDataName[ii], loc);
m_instanceData[used++] = loc;
}
}
BX_CHECK(used < BX_COUNTOF(m_instanceData), "Out of bounds %d > array size %d."
, used
, BX_COUNTOF(m_instanceData)
);
m_instanceData[used] = 0xffff;
}
void ProgramGL::bindAttributes(const VertexLayout& _layout, uint32_t _baseVertex)
{
for (uint32_t ii = 0, iiEnd = m_usedCount; ii < iiEnd; ++ii)
{
Attrib::Enum attr = Attrib::Enum(m_used[ii]);
GLint loc = m_attributes[attr];
uint8_t num;
AttribType::Enum type;
bool normalized;
bool asInt;
_layout.decode(attr, num, type, normalized, asInt);
if (-1 != loc)
{
if (UINT16_MAX != _layout.m_attributes[attr])
{
GL_CHECK(glEnableVertexAttribArray(loc) );
GL_CHECK(glVertexAttribDivisor(loc, 0) );
uint32_t baseVertex = _baseVertex*_layout.m_stride + _layout.m_offset[attr];
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL >= 30) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31) )
&& (AttribType::Uint8 == type || AttribType::Int16 == type)
&& !normalized)
{
GL_CHECK(glVertexAttribIPointer(loc
, num
, s_attribType[type]
, _layout.m_stride
, (void*)(uintptr_t)baseVertex)
);
}
else
{
GL_CHECK(glVertexAttribPointer(loc
, num
, s_attribType[type]
, normalized
, _layout.m_stride
, (void*)(uintptr_t)baseVertex)
);
}
m_unboundUsedAttrib[ii] = Attrib::Count;
}
}
}
}
void ProgramGL::unbindAttributes()
{
for(uint32_t ii = 0, iiEnd = m_usedCount; ii < iiEnd; ++ii)
{
if(Attrib::Count == m_unboundUsedAttrib[ii])
{
Attrib::Enum attr = Attrib::Enum(m_used[ii]);
GLint loc = m_attributes[attr];
GL_CHECK(glDisableVertexAttribArray(loc));
}
}
}
void ProgramGL::bindInstanceData(uint32_t _stride, uint32_t _baseVertex) const
{
uint32_t baseVertex = _baseVertex;
for (uint32_t ii = 0; 0xffff != m_instanceData[ii]; ++ii)
{
GLint loc = m_instanceData[ii];
GL_CHECK(glEnableVertexAttribArray(loc) );
GL_CHECK(glVertexAttribPointer(loc, 4, GL_FLOAT, GL_FALSE, _stride, (void*)(uintptr_t)baseVertex) );
GL_CHECK(glVertexAttribDivisor(loc, 1) );
baseVertex += 16;
}
}
void ProgramGL::unbindInstanceData() const
{
for(uint32_t ii = 0; 0xffff != m_instanceData[ii]; ++ii)
{
GLint loc = m_instanceData[ii];
GL_CHECK(glDisableVertexAttribArray(loc));
}
}
void IndexBufferGL::destroy()
{
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
GL_CHECK(glDeleteBuffers(1, &m_id) );
}
void VertexBufferGL::destroy()
{
GL_CHECK(glBindBuffer(m_target, 0) );
GL_CHECK(glDeleteBuffers(1, &m_id) );
}
bool TextureGL::init(GLenum _target, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, uint64_t _flags)
{
m_target = _target;
m_numMips = _numMips;
m_flags = _flags;
m_width = _width;
m_height = _height;
m_depth = _depth;
m_currentSamplerHash = UINT32_MAX;
const bool writeOnly = 0 != (m_flags&BGFX_TEXTURE_RT_WRITE_ONLY);
const bool computeWrite = 0 != (m_flags&BGFX_TEXTURE_COMPUTE_WRITE );
const bool srgb = 0 != (m_flags&BGFX_TEXTURE_SRGB);
const bool textureArray = false
|| _target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY
;
if (!writeOnly)
{
GL_CHECK(glGenTextures(1, &m_id) );
BX_CHECK(0 != m_id, "Failed to generate texture id.");
GL_CHECK(glBindTexture(_target, m_id) );
GL_CHECK(glPixelStorei(GL_UNPACK_ALIGNMENT, 1) );
const TextureFormatInfo& tfi = s_textureFormat[m_textureFormat];
const GLenum fmt = srgb
? s_textureFormat[m_textureFormat].m_fmt
: s_textureFormat[m_textureFormat].m_fmtSrgb
;
m_fmt = fmt;
m_type = tfi.m_type;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool convert = false
|| m_textureFormat != m_requestedFormat
|| swizzle
;
if (convert)
{
m_textureFormat = (uint8_t)TextureFormat::RGBA8;
const TextureFormatInfo& tfiRgba8 = s_textureFormat[TextureFormat::RGBA8];
m_fmt = tfiRgba8.m_fmt;
m_type = tfiRgba8.m_type;
}
const GLenum internalFmt = srgb
? s_textureFormat[m_textureFormat].m_internalFmtSrgb
: s_textureFormat[m_textureFormat].m_internalFmt
;
if (textureArray)
{
GL_CHECK(glTexStorage3D(_target
, _numMips
, internalFmt
, m_width
, m_height
, _depth
) );
}
else if (computeWrite)
{
if (_target == GL_TEXTURE_3D)
{
GL_CHECK(glTexStorage3D(_target
, _numMips
, internalFmt
, m_width
, m_height
, _depth
) );
}
else
{
GL_CHECK(glTexStorage2D(_target
, _numMips
, internalFmt
, m_width
, m_height
) );
}
}
setSamplerState(uint32_t(_flags), NULL);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& s_renderGL->m_textureSwizzleSupport)
{
GLint swizzleMask[] = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA };
GL_CHECK(glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask) );
}
}
const bool renderTarget = 0 != (m_flags&BGFX_TEXTURE_RT_MASK);
if (renderTarget)
{
uint32_t msaaQuality = ( (m_flags&BGFX_TEXTURE_RT_MSAA_MASK)>>BGFX_TEXTURE_RT_MSAA_SHIFT);
msaaQuality = bx::uint32_satsub(msaaQuality, 1);
msaaQuality = bx::uint32_min(s_renderGL->m_maxMsaa, msaaQuality == 0 ? 0 : 1<<msaaQuality);
const bool msaaSample = 0 != (m_flags&BGFX_TEXTURE_MSAA_SAMPLE);
if (!msaaSample
&& (0 != msaaQuality || writeOnly) )
{
GL_CHECK(glGenRenderbuffers(1, &m_rbo) );
BX_CHECK(0 != m_rbo, "Failed to generate renderbuffer id.");
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_rbo) );
if (0 == msaaQuality)
{
GL_CHECK(glRenderbufferStorage(GL_RENDERBUFFER
, s_rboFormat[m_textureFormat]
, _width
, _height
) );
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER
, msaaQuality
, s_rboFormat[m_textureFormat]
, _width
, _height
) );
}
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, 0) );
if (writeOnly)
{
// This is render buffer, there is no sampling, no need
// to create texture.
return false;
}
}
}
return true;
}
void TextureGL::create(const Memory* _mem, uint64_t _flags, uint8_t _skip)
{
bimg::ImageContainer imageContainer;
if (bimg::imageParse(imageContainer, _mem->data, _mem->size) )
{
const uint8_t startLod = bx::min<uint8_t>(_skip, imageContainer.m_numMips-1);
bimg::TextureInfo ti;
bimg::imageGetSize(
&ti
, uint16_t(imageContainer.m_width >>startLod)
, uint16_t(imageContainer.m_height>>startLod)
, uint16_t(imageContainer.m_depth >>startLod)
, imageContainer.m_cubeMap
, 1 < imageContainer.m_numMips
, imageContainer.m_numLayers
, imageContainer.m_format
);
ti.numMips = bx::min<uint8_t>(imageContainer.m_numMips-startLod, ti.numMips);
m_requestedFormat = uint8_t(imageContainer.m_format);
m_textureFormat = uint8_t(getViableTextureFormat(imageContainer) );
const bool computeWrite = 0 != (_flags&BGFX_TEXTURE_COMPUTE_WRITE);
const bool srgb = 0 != (_flags&BGFX_TEXTURE_SRGB);
const bool msaaSample = 0 != (_flags&BGFX_TEXTURE_MSAA_SAMPLE);
uint32_t msaaQuality = ( (_flags&BGFX_TEXTURE_RT_MSAA_MASK)>>BGFX_TEXTURE_RT_MSAA_SHIFT);
msaaQuality = bx::uint32_satsub(msaaQuality, 1);
msaaQuality = bx::uint32_min(s_renderGL->m_maxMsaa, msaaQuality == 0 ? 0 : 1<<msaaQuality);
GLenum target = msaaSample ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D;
if (imageContainer.m_cubeMap)
{
target = GL_TEXTURE_CUBE_MAP;
}
else if (imageContainer.m_depth > 1)
{
target = GL_TEXTURE_3D;
}
const bool textureArray = 1 < ti.numLayers;
if (textureArray)
{
switch (target)
{
case GL_TEXTURE_CUBE_MAP: target = GL_TEXTURE_CUBE_MAP_ARRAY; break;
case GL_TEXTURE_2D_MULTISAMPLE: target = GL_TEXTURE_2D_MULTISAMPLE_ARRAY; break;
default: target = GL_TEXTURE_2D_ARRAY; break;
}
}
if (!init(target
, ti.width
, ti.height
, textureArray ? ti.numLayers : ti.depth
, ti.numMips
, _flags
) )
{
return;
}
m_numLayers = ti.numLayers;
target = isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X
: m_target
;
const GLenum internalFmt = srgb
? s_textureFormat[m_textureFormat].m_internalFmtSrgb
: s_textureFormat[m_textureFormat].m_internalFmt
;
const GLenum fmt = srgb
? s_textureFormat[m_textureFormat].m_fmtSrgb
: s_textureFormat[m_textureFormat].m_fmt
;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(m_requestedFormat) );
const bool convert = false
|| m_textureFormat != m_requestedFormat
|| swizzle
;
BX_TRACE("Texture%-4s %3d: %s %s(requested: %s), layers %d, %dx%dx%d%s."
, imageContainer.m_cubeMap ? "Cube" : (1 < imageContainer.m_depth ? "3D" : "2D")
, this - s_renderGL->m_textures
, getName( (TextureFormat::Enum)m_textureFormat)
, srgb ? "+sRGB " : ""
, getName( (TextureFormat::Enum)m_requestedFormat)
, ti.numLayers
, ti.width
, ti.height
, imageContainer.m_cubeMap ? 6 : (1 < imageContainer.m_depth ? imageContainer.m_depth : 0)
, 0 != (m_flags&BGFX_TEXTURE_RT_MASK) ? " (render target)" : ""
);
BX_WARN(!convert, "Texture %s%s%s from %s to %s."
, swizzle ? "swizzle" : ""
, swizzle&&convert ? " and " : ""
, convert ? "convert" : ""
, getName( (TextureFormat::Enum)m_requestedFormat)
, getName( (TextureFormat::Enum)m_textureFormat)
);
uint8_t* temp = NULL;
if (convert)
{
temp = (uint8_t*)BX_ALLOC(g_allocator, ti.width*ti.height*4);
}
const uint16_t numSides = ti.numLayers * (imageContainer.m_cubeMap ? 6 : 1);
for (uint16_t side = 0; side < numSides; ++side)
{
uint32_t width = ti.width;
uint32_t height = ti.height;
uint32_t depth = ti.depth;
GLenum imageTarget = imageContainer.m_cubeMap && !textureArray
? target+side
: target
;
for (uint8_t lod = 0, num = ti.numMips; lod < num; ++lod)
{
width = bx::uint32_max(1, width);
height = bx::uint32_max(1, height);
depth = 1 < imageContainer.m_depth
? bx::uint32_max(1, depth)
: side
;
bimg::ImageMip mip;
if (bimg::imageGetRawData(imageContainer, side, lod+startLod, _mem->data, _mem->size, mip) )
{
if (compressed
&& !convert)
{
GL_CHECK(compressedTexImage(imageTarget
, lod
, internalFmt
, width
, height
, depth
, 0
, mip.m_size
, mip.m_data
) );
}
else
{
const uint8_t* data = mip.m_data;
if (convert)
{
imageDecodeToRgba8(
g_allocator
, temp
, mip.m_data
, mip.m_width
, mip.m_height
, mip.m_width*4
, mip.m_format
);
data = temp;
}
GL_CHECK(texImage(imageTarget
, msaaQuality
, lod
, internalFmt
, width
, height
, depth
, 0
, fmt
, m_type
, data
) );
}
}
else if (!computeWrite)
{
if (compressed)
{
uint32_t size = bx::max<uint32_t>(1, (width + 3)>>2)
* bx::max<uint32_t>(1, (height + 3)>>2)
* 4*4* bimg::getBitsPerPixel(bimg::TextureFormat::Enum(m_textureFormat) )/8
;
GL_CHECK(compressedTexImage(imageTarget
, lod
, internalFmt
, width
, height
, depth
, 0
, size
, NULL
) );
}
else
{
GL_CHECK(texImage(imageTarget
, msaaQuality
, lod
, internalFmt
, width
, height
, depth
, 0
, fmt
, m_type
, NULL
) );
}
}
width >>= 1;
height >>= 1;
depth >>= 1;
}
}
if (NULL != temp)
{
BX_FREE(g_allocator, temp);
}
}
GL_CHECK(glBindTexture(m_target, 0) );
}
void TextureGL::destroy()
{
if (0 == (m_flags & BGFX_SAMPLER_INTERNAL_SHARED)
&& 0 != m_id)
{
GL_CHECK(glBindTexture(m_target, 0) );
GL_CHECK(glDeleteTextures(1, &m_id) );
m_id = 0;
}
if (0 != m_rbo)
{
GL_CHECK(glDeleteRenderbuffers(1, &m_rbo) );
m_rbo = 0;
}
}
void TextureGL::overrideInternal(uintptr_t _ptr)
{
destroy();
m_flags |= BGFX_SAMPLER_INTERNAL_SHARED;
m_id = (GLuint)_ptr;
}
void TextureGL::update(uint8_t _side, uint8_t _mip, const Rect& _rect, uint16_t _z, uint16_t _depth, uint16_t _pitch, const Memory* _mem)
{
const uint32_t bpp = bimg::getBitsPerPixel(bimg::TextureFormat::Enum(m_textureFormat) );
const uint32_t rectpitch = _rect.m_width*bpp/8;
uint32_t srcpitch = UINT16_MAX == _pitch ? rectpitch : _pitch;
GL_CHECK(glBindTexture(m_target, m_id) );
GL_CHECK(glPixelStorei(GL_UNPACK_ALIGNMENT, 1) );
GLenum target = isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X
: m_target
;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool unpackRowLength = !!BGFX_CONFIG_RENDERER_OPENGL || s_extension[Extension::EXT_unpack_subimage].m_supported;
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(m_requestedFormat) );
const bool convert = false
|| (compressed && m_textureFormat != m_requestedFormat)
|| swizzle
;
const uint32_t width = _rect.m_width;
const uint32_t height = _rect.m_height;
uint8_t* temp = NULL;
if (convert
|| !unpackRowLength)
{
temp = (uint8_t*)BX_ALLOC(g_allocator, rectpitch*height);
}
else if (unpackRowLength)
{
GL_CHECK(glPixelStorei(GL_UNPACK_ROW_LENGTH, srcpitch*8/bpp) );
}
if (compressed)
{
const uint8_t* data = _mem->data;
if (!unpackRowLength)
{
bimg::imageCopy(temp, width, height, 1, bpp, srcpitch, data);
data = temp;
}
GL_CHECK(compressedTexSubImage(target+_side
, _mip
, _rect.m_x
, _rect.m_y
, _z
, _rect.m_width
, _rect.m_height
, _depth
, m_fmt
, _mem->size
, data
) );
}
else
{
const uint8_t* data = _mem->data;
if (convert)
{
bimg::imageDecodeToRgba8(g_allocator, temp, data, width, height, srcpitch, bimg::TextureFormat::Enum(m_requestedFormat) );
data = temp;
srcpitch = rectpitch;
}
if (BX_IGNORE_C4127(true
&& !unpackRowLength
&& !convert) )
{
bimg::imageCopy(temp, width, height, 1, bpp, srcpitch, data);
data = temp;
}
GL_CHECK(texSubImage(target+_side
, _mip
, _rect.m_x
, _rect.m_y
, _z
, _rect.m_width
, _rect.m_height
, _depth
, m_fmt
, m_type
, data
) );
}
if (!convert
&& unpackRowLength)
{
GL_CHECK(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0) );
}
if (NULL != temp)
{
BX_FREE(g_allocator, temp);
}
}
void TextureGL::setSamplerState(uint32_t _flags, const float _rgba[4])
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30)
&& !s_textureFilter[m_textureFormat])
{
// Force point sampling when texture format doesn't support linear sampling.
_flags &= ~(0
| BGFX_SAMPLER_MIN_MASK
| BGFX_SAMPLER_MAG_MASK
| BGFX_SAMPLER_MIP_MASK
);
_flags |= 0
| BGFX_SAMPLER_MIN_POINT
| BGFX_SAMPLER_MAG_POINT
| BGFX_SAMPLER_MIP_POINT
;
}
const uint32_t flags = (0 != (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags) ? m_flags : _flags) & BGFX_SAMPLER_BITS_MASK;
bool hasBorderColor = false;
bx::HashMurmur2A murmur;
murmur.begin();
murmur.add(flags);
if (NULL != _rgba)
{
if (BGFX_SAMPLER_U_BORDER == (flags & BGFX_SAMPLER_U_BORDER)
|| BGFX_SAMPLER_V_BORDER == (flags & BGFX_SAMPLER_V_BORDER)
|| BGFX_SAMPLER_W_BORDER == (flags & BGFX_SAMPLER_W_BORDER) )
{
murmur.add(_rgba, 16);
hasBorderColor = true;
}
}
uint32_t hash = murmur.end();
if (hash != m_currentSamplerHash)
{
const GLenum target = m_target == GL_TEXTURE_2D_MULTISAMPLE ? GL_TEXTURE_2D : m_target;
const GLenum targetMsaa = m_target;
const uint8_t numMips = m_numMips;
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_S, s_textureAddress[(flags&BGFX_SAMPLER_U_MASK)>>BGFX_SAMPLER_U_SHIFT]) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_T, s_textureAddress[(flags&BGFX_SAMPLER_V_MASK)>>BGFX_SAMPLER_V_SHIFT]) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::APPLE_texture_max_level].m_supported)
{
GL_CHECK(glTexParameteri(targetMsaa, GL_TEXTURE_MAX_LEVEL, numMips-1) );
}
if (target == GL_TEXTURE_3D)
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_R, s_textureAddress[(flags&BGFX_SAMPLER_W_MASK)>>BGFX_SAMPLER_W_SHIFT]) );
}
GLenum magFilter;
GLenum minFilter;
getFilters(flags, 1 < numMips, magFilter, minFilter);
GL_CHECK(glTexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilter) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilter) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
GL_CHECK(glTexParameterf(target, GL_TEXTURE_LOD_BIAS, float(BGFX_CONFIG_MIP_LOD_BIAS) ) );
}
if (s_renderGL->m_borderColorSupport
&& hasBorderColor)
{
GL_CHECK(glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, _rgba) );
}
if (0 != (flags & (BGFX_SAMPLER_MIN_ANISOTROPIC|BGFX_SAMPLER_MAG_ANISOTROPIC) )
&& 0.0f < s_renderGL->m_maxAnisotropy)
{
GL_CHECK(glTexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, s_renderGL->m_maxAnisotropy) );
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_renderGL->m_shadowSamplersSupport)
{
const uint32_t cmpFunc = (flags&BGFX_SAMPLER_COMPARE_MASK)>>BGFX_SAMPLER_COMPARE_SHIFT;
if (0 == cmpFunc)
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_NONE) );
}
else
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, s_cmpFunc[cmpFunc]) );
}
}
m_currentSamplerHash = hash;
}
}
void TextureGL::commit(uint32_t _stage, uint32_t _flags, const float _palette[][4])
{
const uint32_t flags = 0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags)
? _flags
: uint32_t(m_flags)
;
const uint32_t index = (flags & BGFX_SAMPLER_BORDER_COLOR_MASK) >> BGFX_SAMPLER_BORDER_COLOR_SHIFT;
GL_CHECK(glActiveTexture(GL_TEXTURE0+_stage) );
GL_CHECK(glBindTexture(m_target, m_id) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
// GLES2 doesn't have support for sampler object.
setSamplerState(flags, _palette[index]);
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL < 31) )
{
// In case that GL 2.1 sampler object is supported via extension.
if (s_renderGL->m_samplerObjectSupport)
{
s_renderGL->setSamplerState(_stage, m_numMips, flags, _palette[index]);
}
else
{
setSamplerState(flags, _palette[index]);
}
}
else
{
// Everything else has sampler object.
s_renderGL->setSamplerState(_stage, m_numMips, flags, _palette[index]);
}
}
void TextureGL::resolve(uint8_t _resolve) const
{
const bool renderTarget = 0 != (m_flags&BGFX_TEXTURE_RT_MASK);
if (renderTarget
&& 1 < m_numMips
&& 0 != (_resolve & BGFX_RESOLVE_AUTO_GEN_MIPS) )
{
GL_CHECK(glBindTexture(m_target, m_id) );
GL_CHECK(glGenerateMipmap(m_target) );
GL_CHECK(glBindTexture(m_target, 0) );
}
}
void strins(char* _str, const char* _insert)
{
size_t len = bx::strLen(_insert);
bx::memMove(&_str[len], _str, bx::strLen(_str)+1);
bx::memCopy(_str, _insert, len);
}
void ShaderGL::create(const Memory* _mem)
{
bx::MemoryReader reader(_mem->data, _mem->size);
m_hash = bx::hash<bx::HashMurmur2A>(_mem->data, _mem->size);
uint32_t magic;
bx::read(&reader, magic);
if (isShaderType(magic, 'C') )
{
m_type = GL_COMPUTE_SHADER;
}
else if (isShaderType(magic, 'F') )
{
m_type = GL_FRAGMENT_SHADER;
}
else if (isShaderType(magic, 'V') )
{
m_type = GL_VERTEX_SHADER;
}
uint32_t hashIn;
bx::read(&reader, hashIn);
uint32_t hashOut;
if (isShaderVerLess(magic, 6) )
{
hashOut = hashIn;
}
else
{
bx::read(&reader, hashOut);
}
uint16_t count;
bx::read(&reader, count);
BX_TRACE("%s Shader consts %d"
, getShaderTypeName(magic)
, count
);
for (uint32_t ii = 0; ii < count; ++ii)
{
uint8_t nameSize = 0;
bx::read(&reader, nameSize);
char name[256];
bx::read(&reader, &name, nameSize);
name[nameSize] = '\0';
uint8_t type;
bx::read(&reader, type);
uint8_t num;
bx::read(&reader, num);
uint16_t regIndex;
bx::read(&reader, regIndex);
uint16_t regCount;
bx::read(&reader, regCount);
}
uint32_t shaderSize;
bx::read(&reader, shaderSize);
m_id = glCreateShader(m_type);
BX_WARN(0 != m_id, "Failed to create shader.");
bx::StringView code( (const char*)reader.getDataPtr(), shaderSize);
if (0 != m_id)
{
if (GL_COMPUTE_SHADER != m_type
&& 0 != bx::strCmp(code, "#version 430", 12) ) // #2000
{
int32_t tempLen = code.getLength() + (4<<10);
char* temp = (char*)alloca(tempLen);
bx::StaticMemoryBlockWriter writer(temp, tempLen);
bx::Error err;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
bx::write(&writer
, "#define centroid\n"
"#define flat\n"
"#define noperspective\n"
"#define smooth\n"
);
bool usesDerivatives = s_extension[Extension::OES_standard_derivatives].m_supported
&& !bx::findIdentifierMatch(code, s_OES_standard_derivatives).isEmpty()
;
const bool usesFragData = !bx::findIdentifierMatch(code, "gl_FragData").isEmpty();
const bool usesFragDepth = !bx::findIdentifierMatch(code, "gl_FragDepth").isEmpty();
const bool usesShadowSamplers = !bx::findIdentifierMatch(code, s_EXT_shadow_samplers).isEmpty();
const bool usesTextureLod = !bx::findIdentifierMatch(code, s_EXT_shader_texture_lod).isEmpty();
const bool usesFragmentOrdering = !bx::findIdentifierMatch(code, "beginFragmentShaderOrdering").isEmpty();
const bool usesTexture3D = true
&& s_extension[Extension::OES_texture_3D].m_supported
&& !bx::findIdentifierMatch(code, s_texture3D).isEmpty()
;
if (usesDerivatives)
{
bx::write(&writer, "#extension GL_OES_standard_derivatives : enable\n");
}
if (usesFragData)
{
BX_WARN(s_extension[Extension::EXT_draw_buffers ].m_supported
|| s_extension[Extension::WEBGL_draw_buffers].m_supported
, "EXT_draw_buffers is used but not supported by GLES2 driver."
);
bx::write(&writer, "#extension GL_EXT_draw_buffers : enable\n");
}
bool insertFragDepth = false;
if (usesFragDepth)
{
BX_WARN(s_extension[Extension::EXT_frag_depth].m_supported, "EXT_frag_depth is used but not supported by GLES2 driver.");
if (s_extension[Extension::EXT_frag_depth].m_supported)
{
bx::write(&writer
, "#extension GL_EXT_frag_depth : enable\n"
"#define bgfx_FragDepth gl_FragDepthEXT\n"
);
char str[128];
bx::snprintf(str, BX_COUNTOF(str), "%s float gl_FragDepthEXT;\n"
, s_extension[Extension::OES_fragment_precision_high].m_supported ? "highp" : "mediump"
);
bx::write(&writer, str);
}
else
{
insertFragDepth = true;
}
}
if (usesShadowSamplers)
{
if (s_renderGL->m_shadowSamplersSupport)
{
bx::write(&writer
, "#extension GL_EXT_shadow_samplers : enable\n"
"#define shadow2D shadow2DEXT\n"
"#define shadow2DProj shadow2DProjEXT\n"
);
}
else
{
bx::write(&writer
, "#define sampler2DShadow sampler2D\n"
"#define shadow2D(_sampler, _coord) step(_coord.z, texture2D(_sampler, _coord.xy).x)\n"
"#define shadow2DProj(_sampler, _coord) step(_coord.z/_coord.w, texture2DProj(_sampler, _coord).x)\n"
);
}
}
if (usesTexture3D)
{
bx::write(&writer, "#extension GL_OES_texture_3D : enable\n");
}
if (usesTextureLod)
{
BX_WARN(s_extension[Extension::ARB_shader_texture_lod].m_supported
|| s_extension[Extension::EXT_shader_texture_lod].m_supported
, "(ARB|EXT)_shader_texture_lod is used but not supported by GLES2 driver."
);
if (s_extension[Extension::ARB_shader_texture_lod].m_supported)
{
bx::write(&writer
, "#extension GL_ARB_shader_texture_lod : enable\n"
"#define texture2DLod texture2DLodARB\n"
"#define texture2DProjLod texture2DProjLodARB\n"
"#define textureCubeLod textureCubeLodARB\n"
"#define texture2DGrad texture2DGradARB\n"
"#define texture2DProjGrad texture2DProjGradARB\n"
"#define textureCubeGrad textureCubeGradARB\n"
);
}
else
{
if(s_extension[Extension::EXT_shader_texture_lod].m_supported)
{
bx::write(&writer
, "#extension GL_EXT_shader_texture_lod : enable\n"
"#define texture2DLod texture2DLodEXT\n"
"#define texture2DProjLod texture2DProjLodEXT\n"
"#define textureCubeLod textureCubeLodEXT\n"
);
}
else
{
bx::write(&writer
, "#define texture2DLod(_sampler, _coord, _level) texture2D(_sampler, _coord)\n"
"#define texture2DProjLod(_sampler, _coord, _level) texture2DProj(_sampler, _coord)\n"
"#define textureCubeLod(_sampler, _coord, _level) textureCube(_sampler, _coord)\n"
);
}
}
}
if (usesFragmentOrdering)
{
if (s_extension[Extension::INTEL_fragment_shader_ordering].m_supported)
{
bx::write(&writer, "#extension GL_INTEL_fragment_shader_ordering : enable\n");
}
else
{
bx::write(&writer, "#define beginFragmentShaderOrdering()\n");
}
}
bx::write(&writer, &err, "precision %s float;\n"
, m_type == GL_FRAGMENT_SHADER ? "mediump" : "highp"
);
bx::write(&writer, code);
bx::write(&writer, '\0');
if (insertFragDepth)
{
bx::StringView shader(temp);
bx::StringView entry = bx::strFind(shader, "void main ()");
if (!entry.isEmpty() )
{
entry.set(entry.getTerm(), shader.getTerm() );
bx::StringView brace = bx::strFind(entry, "{");
if (!brace.isEmpty() )
{
bx::StringView block = bx::strFindBlock(bx::StringView(brace.getPtr(), shader.getTerm() ), '{', '}');
if (!block.isEmpty() )
{
strins(const_cast<char*>(brace.getPtr()+1), "\n float bgfx_FragDepth = 0.0;\n");
}
}
}
}
// Replace all instances of gl_FragDepth with bgfx_FragDepth.
for (bx::StringView fragDepth = bx::findIdentifierMatch(temp, "gl_FragDepth")
; !fragDepth.isEmpty()
; fragDepth = bx::findIdentifierMatch(fragDepth, "gl_FragDepth")
)
{
char* insert = const_cast<char*>(fragDepth.getPtr() );
strins(insert, "bg");
bx::memCopy(insert + 2, "fx", 2);
}
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL <= 21) )
{
const bool usesTextureLod = true
&& s_extension[Extension::ARB_shader_texture_lod].m_supported
&& !bx::findIdentifierMatch(code, s_ARB_shader_texture_lod).isEmpty()
;
const bool usesVertexID = true
&& !s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, "gl_VertexID").isEmpty()
;
const bool usesInstanceID = true
&& !s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, "gl_InstanceID").isEmpty()
;
const bool usesGpuShader4 = true
&& s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, s_EXT_gpu_shader4).isEmpty()
;
const bool usesGpuShader5 = !bx::findIdentifierMatch(code, s_ARB_gpu_shader5).isEmpty();
const bool usesIUsamplers = !bx::findIdentifierMatch(code, s_uisamplers).isEmpty();
const bool usesUint = !bx::findIdentifierMatch(code, s_uint).isEmpty();
const bool usesTexelFetch = !bx::findIdentifierMatch(code, s_texelFetch).isEmpty();
const bool usesTextureArray = !bx::findIdentifierMatch(code, s_textureArray).isEmpty();
const bool usesTexture3D = !bx::findIdentifierMatch(code, s_texture3D).isEmpty();
const bool usesTextureMS = !bx::findIdentifierMatch(code, s_ARB_texture_multisample).isEmpty();
const bool usesPacking = !bx::findIdentifierMatch(code, s_ARB_shading_language_packing).isEmpty();
const bool usesInterpQ = !bx::findIdentifierMatch(code, s_intepolationQualifier).isEmpty();
uint32_t version = BX_ENABLED(BX_PLATFORM_OSX) ? 120
: usesTextureArray
|| usesTexture3D
|| usesIUsamplers
|| usesVertexID
|| usesUint
|| usesTexelFetch
|| usesGpuShader5
|| usesInterpQ ? 130
: usesTextureLod ? 120
: 120
;
version = 0 == bx::strCmp(code, "#version 430", 12) ? 430 : version;
bx::write(&writer, &err, "#version %d\n", version);
if (430 > version && usesTextureLod)
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer
, "#extension GL_ARB_shader_texture_lod : enable\n"
"#define texture2DGrad texture2DGradARB\n"
"#define texture2DProjGrad texture2DProjGradARB\n"
"#define textureCubeGrad textureCubeGradARB\n"
);
}
}
if (usesInstanceID)
{
bx::write(&writer, "#extension GL_ARB_draw_instanced : enable\n");
}
if (usesGpuShader4)
{
bx::write(&writer, "#extension GL_EXT_gpu_shader4 : enable\n");
}
if (usesGpuShader5)
{
bx::write(&writer, "#extension GL_ARB_gpu_shader5 : enable\n");
}
if (usesPacking)
{
bx::write(&writer, "#extension GL_ARB_shading_language_packing : enable\n");
}
if (usesTextureMS)
{
bx::write(&writer, "#extension GL_ARB_texture_multisample : enable\n");
}
if (usesTextureArray)
{
bx::write(&writer, "#extension GL_EXT_texture_array : enable\n");
if (BX_ENABLED(BX_PLATFORM_OSX) )
{
bx::write(&writer, "#define texture2DArrayLod texture2DArray\n");
}
else
{
bx::write(&writer, "#define texture2DArrayLodEXT texture2DArrayLod\n");
}
}
if (usesTexture3D)
{
bx::write(&writer, "#define texture3DEXT texture3D\n");
if (BX_ENABLED(BX_PLATFORM_OSX) )
{
bx::write(&writer, "#define texture3DLodEXT texture3D\n");
}
else
{
bx::write(&writer, "#define texture3DLodEXT texture3DLod\n");
}
}
if (130 <= version)
{
if (430 > version)
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer, "#define varying in\n");
}
else
{
bx::write(&writer, "#define attribute in\n");
bx::write(&writer, "#define varying out\n");
}
}
uint32_t fragData = 0;
if (!bx::findIdentifierMatch(code, "gl_FragData").isEmpty() )
{
for (uint32_t ii = 0, num = g_caps.limits.maxFBAttachments; ii < num; ++ii)
{
char tmpFragData[16];
bx::snprintf(tmpFragData, BX_COUNTOF(tmpFragData), "gl_FragData[%d]", ii);
fragData = bx::uint32_max(fragData, bx::strFind(code, tmpFragData).isEmpty() ? 0 : ii+1);
}
BGFX_FATAL(0 != fragData, Fatal::InvalidShader, "Unable to find and patch gl_FragData!");
}
if (0 != fragData)
{
bx::write(&writer, &err, "out vec4 bgfx_FragData[%d];\n", fragData);
bx::write(&writer, "#define gl_FragData bgfx_FragData\n");
}
else if (!bx::findIdentifierMatch(code, "gl_FragColor").isEmpty() )
{
bx::write(&writer, "out vec4 bgfx_FragColor;\n");
bx::write(&writer, "#define gl_FragColor bgfx_FragColor\n");
}
}
else
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer, "#define in varying\n");
}
else
{
bx::write(&writer
, "#define in attribute\n"
"#define out varying\n"
);
}
}
bx::write(&writer,
"#define lowp\n"
"#define mediump\n"
"#define highp\n"
);
if (!usesInterpQ)
{
bx::write(&writer,
"#define centroid\n"
"#define flat\n"
"#define noperspective\n"
"#define smooth\n"
);
}
if (version == 430)
{
int32_t verLen = bx::strLen("#version 430\n");
bx::write(&writer, code.getPtr()+verLen, code.getLength()-verLen);
}
else
{
bx::write(&writer, code);
}
bx::write(&writer, '\0');
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL >= 31)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
bx::write(&writer, &err
, "#version 300 es\n"
"precision %s float;\n"
, m_type == GL_FRAGMENT_SHADER ? "mediump" : "highp"
);
}
else
{
bx::write(&writer, "#version 140\n");
}
bx::write(&writer
, "#define texture2DLod textureLod\n"
"#define texture3DLod textureLod\n"
"#define textureCubeLod textureLod\n"
"#define texture2DGrad textureGrad\n"
"#define texture3DGrad textureGrad\n"
"#define textureCubeGrad textureGrad\n"
);
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer
, "#define varying in\n"
"#define texture2D texture\n"
"#define texture2DProj textureProj\n"
);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
bx::write(&writer, "#define shadow2D(_sampler, _coord) vec2(textureProj(_sampler, vec4(_coord, 1.0) ) )\n");
bx::write(&writer, "#define shadow2DProj(_sampler, _coord) vec2(textureProj(_sampler, _coord) ) )\n");
}
else
{
bx::write(&writer, "#define shadow2D(_sampler, _coord) (textureProj(_sampler, vec4(_coord, 1.0) ) )\n");
bx::write(&writer, "#define shadow2DProj(_sampler, _coord) (textureProj(_sampler, _coord) ) )\n");
}
bx::write(&writer, "#define texture3D texture\n");
bx::write(&writer, "#define textureCube texture\n");
uint32_t fragData = 0;
if (!bx::findIdentifierMatch(code, "gl_FragData").isEmpty() )
{
for (uint32_t ii = 0, num = g_caps.limits.maxFBAttachments; ii < num; ++ii)
{
char tmpFragData[16];
bx::snprintf(tmpFragData, BX_COUNTOF(tmpFragData), "gl_FragData[%d]", ii);
fragData = bx::max(fragData, bx::strFind(code, tmpFragData).isEmpty() ? 0 : ii+1);
}
BGFX_FATAL(0 != fragData, Fatal::InvalidShader, "Unable to find and patch gl_FragData!");
}
if (!bx::findIdentifierMatch(code, "beginFragmentShaderOrdering").isEmpty() )
{
if (s_extension[Extension::INTEL_fragment_shader_ordering].m_supported)
{
bx::write(&writer, "#extension GL_INTEL_fragment_shader_ordering : enable\n");
}
else
{
bx::write(&writer, "#define beginFragmentShaderOrdering()\n");
}
}
if (!bx::findIdentifierMatch(code, s_ARB_texture_multisample).isEmpty() )
{
bx::write(&writer, "#extension GL_ARB_texture_multisample : enable\n");
}
if (0 != fragData)
{
bx::write(&writer, &err, "out vec4 bgfx_FragData[%d];\n", fragData);
bx::write(&writer, "#define gl_FragData bgfx_FragData\n");
}
else
{
bx::write(&writer
, "out vec4 bgfx_FragColor;\n"
"#define gl_FragColor bgfx_FragColor\n"
);
}
}
else
{
bx::write(&writer
, "#define attribute in\n"
"#define varying out\n"
);
}
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
bx::write(&writer
, "#define lowp\n"
"#define mediump\n"
"#define highp\n"
);
}
bx::write(&writer, code.getPtr(), code.getLength() );
bx::write(&writer, '\0');
}
code.set(temp);
}
else if (GL_COMPUTE_SHADER == m_type)
{
int32_t codeLen = (int32_t)bx::strLen(code);
int32_t tempLen = codeLen + (4<<10);
char* temp = (char*)alloca(tempLen);
bx::StaticMemoryBlockWriter writer(temp, tempLen);
bx::write(&writer
, "#version 430\n"
"#define texture2DLod textureLod\n"
"#define texture2DLodOffset textureLodOffset\n"
"#define texture2DArrayLod textureLod\n"
"#define texture2DArrayLodOffset textureLodOffset\n"
"#define texture3DLod textureLod\n"
"#define textureCubeLod textureLod\n"
"#define texture2DGrad textureGrad\n"
"#define texture3DGrad textureGrad\n"
"#define textureCubeGrad textureGrad\n"
);
int32_t verLen = bx::strLen("#version 430\n");
bx::write(&writer, code.getPtr()+verLen, codeLen-verLen);
bx::write(&writer, '\0');
code = temp;
}
GL_CHECK(glShaderSource(m_id, 1, (const GLchar**)&code, NULL) );
GL_CHECK(glCompileShader(m_id) );
GLint compiled = 0;
GL_CHECK(glGetShaderiv(m_id, GL_COMPILE_STATUS, &compiled) );
if (0 == compiled)
{
LineReader lineReader(code);
bx::Error err;
for (int32_t line = 1; err.isOk(); ++line)
{
char str[4096];
int32_t len = bx::read(&lineReader, str, BX_COUNTOF(str)-1, &err);
if (err.isOk() )
{
str[len] = '\0';
bx::StringView eol = bx::strFindEol(str);
if (eol.getPtr() != str)
{
*const_cast<char*>(eol.getPtr() ) = '\0';
}
BX_TRACE("%3d %s", line, str);
}
}
GLsizei len;
char log[1024];
GL_CHECK(glGetShaderInfoLog(m_id, sizeof(log), &len, log) );
BX_TRACE("Failed to compile shader. %d: %s", compiled, log);
GL_CHECK(glDeleteShader(m_id) );
m_id = 0;
BGFX_FATAL(false, bgfx::Fatal::InvalidShader, "Failed to compile shader.");
}
else if (BX_ENABLED(BGFX_CONFIG_DEBUG)
&& s_extension[Extension::ANGLE_translated_shader_source].m_supported
&& NULL != glGetTranslatedShaderSourceANGLE)
{
GLsizei len;
GL_CHECK(glGetShaderiv(m_id, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, &len) );
char* source = (char*)alloca(len);
GL_CHECK(glGetTranslatedShaderSourceANGLE(m_id, len, &len, source) );
BX_TRACE("ANGLE source (len: %d):\n%s\n####", len, source);
}
}
}
void ShaderGL::destroy()
{
if (0 != m_id)
{
GL_CHECK(glDeleteShader(m_id) );
m_id = 0;
}
}
void FrameBufferGL::create(uint8_t _num, const Attachment* _attachment)
{
GL_CHECK(glGenFramebuffers(1, &m_fbo[0]) );
m_denseIdx = UINT16_MAX;
m_numTh = _num;
bx::memCopy(m_attachment, _attachment, _num*sizeof(Attachment) );
m_needPresent = false;
postReset();
}
void FrameBufferGL::postReset()
{
if (0 != m_fbo[0])
{
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_fbo[0]) );
bool needResolve = false;
GLenum buffers[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS];
uint32_t colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if (0 == colorIdx)
{
m_width = bx::uint32_max(texture.m_width >> at.mip, 1);
m_height = bx::uint32_max(texture.m_height >> at.mip, 1);
}
GLenum attachment = GL_COLOR_ATTACHMENT0 + colorIdx;
bimg::TextureFormat::Enum format = bimg::TextureFormat::Enum(texture.m_textureFormat);
if (bimg::isDepth(format) )
{
const bimg::ImageBlockInfo& info = bimg::getBlockInfo(format);
if (0 < info.stencilBits)
{
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
}
else if (0 == info.depthBits)
{
attachment = GL_STENCIL_ATTACHMENT;
}
else
{
attachment = GL_DEPTH_ATTACHMENT;
}
}
else if (Access::Write == at.access)
{
buffers[colorIdx] = attachment;
++colorIdx;
}
if (0 != texture.m_rbo)
{
#if !(BGFX_CONFIG_RENDERER_OPENGL >= 30 || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
if (GL_DEPTH_STENCIL_ATTACHMENT == attachment)
{
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, GL_DEPTH_ATTACHMENT
, GL_RENDERBUFFER
, texture.m_rbo
) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, GL_STENCIL_ATTACHMENT
, GL_RENDERBUFFER
, texture.m_rbo
) );
}
else
#endif
{
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, attachment
, GL_RENDERBUFFER
, texture.m_rbo
) );
}
}
else
{
if (1 < texture.m_numLayers
&& !texture.isCubeMap())
{
GL_CHECK(glFramebufferTextureLayer(GL_FRAMEBUFFER
, attachment
, texture.m_id
, at.mip
, at.layer
) );
}
else
{
GLenum target = texture.isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X + at.layer
: texture.m_target
;
GL_CHECK(glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, target
, texture.m_id
, at.mip
) );
}
}
needResolve |= (0 != texture.m_rbo) && (0 != texture.m_id);
}
}
m_num = uint8_t(colorIdx);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 31) )
{
if (0 == colorIdx)
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
// When only depth is attached disable draw buffer to avoid
// GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER.
GL_CHECK(glDrawBuffer(GL_NONE) );
}
}
else
{
GL_CHECK(glDrawBuffers(colorIdx, buffers) );
}
// Disable read buffer to avoid GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER.
GL_CHECK(glReadBuffer(GL_NONE) );
}
frameBufferValidate();
if (needResolve)
{
GL_CHECK(glGenFramebuffers(1, &m_fbo[1]) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_fbo[1]) );
colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if (0 != texture.m_id)
{
GLenum attachment = GL_COLOR_ATTACHMENT0 + colorIdx;
if (!bimg::isDepth(bimg::TextureFormat::Enum(texture.m_textureFormat) ) )
{
++colorIdx;
GLenum target = texture.isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X + at.layer
: texture.m_target
;
GL_CHECK(glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, target
, texture.m_id
, at.mip
) );
}
}
}
}
frameBufferValidate();
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderGL->m_msaaBackBufferFbo) );
}
}
void FrameBufferGL::create(uint16_t _denseIdx, void* _nwh, uint32_t _width, uint32_t _height, TextureFormat::Enum _format, TextureFormat::Enum _depthFormat)
{
BX_UNUSED(_format, _depthFormat);
m_swapChain = s_renderGL->m_glctx.createSwapChain(_nwh);
m_width = _width;
m_height = _height;
m_numTh = 0;
m_denseIdx = _denseIdx;
m_needPresent = false;
}
uint16_t FrameBufferGL::destroy()
{
if (0 != m_num)
{
GL_CHECK(glDeleteFramebuffers(0 == m_fbo[1] ? 1 : 2, m_fbo) );
m_num = 0;
}
if (NULL != m_swapChain)
{
s_renderGL->m_glctx.destroySwapChain(m_swapChain);
m_swapChain = NULL;
}
bx::memSet(m_fbo, 0, sizeof(m_fbo) );
uint16_t denseIdx = m_denseIdx;
m_denseIdx = UINT16_MAX;
m_needPresent = false;
m_numTh = 0;
return denseIdx;
}
void FrameBufferGL::resolve()
{
if (0 != m_fbo[1])
{
uint32_t colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
bimg::TextureFormat::Enum format = bimg::TextureFormat::Enum(texture.m_textureFormat);
if (!bimg::isDepth(format) )
{
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_fbo[0]) );
GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_fbo[1]) );
GL_CHECK(glReadBuffer(GL_COLOR_ATTACHMENT0 + colorIdx) );
GL_CHECK(glDrawBuffer(GL_COLOR_ATTACHMENT0 + colorIdx) );
colorIdx++;
GL_CHECK(glBlitFramebuffer(0
, 0
, m_width
, m_height
, 0
, 0
, m_width
, m_height
, GL_COLOR_BUFFER_BIT
, GL_LINEAR
) );
}
}
}
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_fbo[0]) );
GL_CHECK(glReadBuffer(GL_NONE) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderGL->m_msaaBackBufferFbo) );
}
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
texture.resolve(at.resolve);
}
}
}
void FrameBufferGL::discard(uint16_t _flags)
{
GLenum buffers[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS+2];
uint32_t idx = 0;
if (BGFX_CLEAR_NONE != (_flags & BGFX_CLEAR_DISCARD_COLOR_MASK) )
{
for (uint32_t ii = 0, num = m_num; ii < num; ++ii)
{
if (BGFX_CLEAR_NONE != (_flags & (BGFX_CLEAR_DISCARD_COLOR_0<<ii) ) )
{
buffers[idx++] = GL_COLOR_ATTACHMENT0 + ii;
}
}
}
uint32_t dsFlags = _flags & (BGFX_CLEAR_DISCARD_DEPTH|BGFX_CLEAR_DISCARD_STENCIL);
if (BGFX_CLEAR_NONE != dsFlags)
{
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& (BGFX_CLEAR_DISCARD_DEPTH|BGFX_CLEAR_DISCARD_STENCIL) == dsFlags)
{
buffers[idx++] = GL_DEPTH_STENCIL_ATTACHMENT;
}
else if (BGFX_CLEAR_DISCARD_DEPTH == dsFlags)
{
buffers[idx++] = GL_DEPTH_ATTACHMENT;
}
else if (BGFX_CLEAR_DISCARD_STENCIL == dsFlags)
{
buffers[idx++] = GL_STENCIL_ATTACHMENT;
}
}
GL_CHECK(glInvalidateFramebuffer(GL_FRAMEBUFFER, idx, buffers) );
}
void FrameBufferGL::set()
{
for(uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (at.access == Access::Write)
{
continue;
}
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if(0 != (texture.m_flags&BGFX_TEXTURE_COMPUTE_WRITE))
{
GL_CHECK(glBindImageTexture(ii
, texture.m_id
, at.mip
, GL_FALSE //texture.isLayered() ? GL_TRUE : GL_FALSE
, at.layer
, s_access[Access::ReadWrite]
, s_imageFormat[texture.m_textureFormat])
);
}
}
}
}
void OcclusionQueryGL::create()
{
for (uint32_t ii = 0; ii < BX_COUNTOF(m_query); ++ii)
{
Query& query = m_query[ii];
GL_CHECK(glGenQueries(1, &query.m_id) );
}
}
void OcclusionQueryGL::destroy()
{
for (uint32_t ii = 0; ii < BX_COUNTOF(m_query); ++ii)
{
Query& query = m_query[ii];
GL_CHECK(glDeleteQueries(1, &query.m_id) );
}
}
void OcclusionQueryGL::begin(Frame* _render, OcclusionQueryHandle _handle)
{
while (0 == m_control.reserve(1) )
{
resolve(_render, true);
}
Query& query = m_query[m_control.m_current];
GL_CHECK(glBeginQuery(GL_SAMPLES_PASSED, query.m_id) );
query.m_handle = _handle;
}
void OcclusionQueryGL::end()
{
GL_CHECK(glEndQuery(GL_SAMPLES_PASSED) );
m_control.commit(1);
}
void OcclusionQueryGL::resolve(Frame* _render, bool _wait)
{
while (0 != m_control.available() )
{
Query& query = m_query[m_control.m_read];
if (isValid(query.m_handle) )
{
int32_t result;
if (!_wait)
{
GL_CHECK(glGetQueryObjectiv(query.m_id, GL_QUERY_RESULT_AVAILABLE, &result) );
if (!result)
{
break;
}
}
GL_CHECK(glGetQueryObjectiv(query.m_id, GL_QUERY_RESULT, &result) );
_render->m_occlusion[query.m_handle.idx] = int32_t(result);
}
m_control.consume(1);
}
}
void OcclusionQueryGL::invalidate(OcclusionQueryHandle _handle)
{
const uint32_t size = m_control.m_size;
for (uint32_t ii = 0, num = m_control.available(); ii < num; ++ii)
{
Query& query = m_query[(m_control.m_read + ii) % size];
if (query.m_handle.idx == _handle.idx)
{
query.m_handle.idx = bgfx::kInvalidHandle;
}
}
}
void RendererContextGL::submitBlit(BlitState& _bs, uint16_t _view)
{
if (m_blitSupported)
{
while (_bs.hasItem(_view) )
{
const BlitItem& bi = _bs.advance();
const TextureGL& src = m_textures[bi.m_src.idx];
const TextureGL& dst = m_textures[bi.m_dst.idx];
uint32_t srcWidth = bx::uint32_min(src.m_width, bi.m_srcX + bi.m_width) - bi.m_srcX;
uint32_t srcHeight = bx::uint32_min(src.m_height, bi.m_srcY + bi.m_height) - bi.m_srcY;
uint32_t srcDepth = bx::uint32_min(src.m_depth, bi.m_srcZ + bi.m_depth) - bi.m_srcZ;
uint32_t dstWidth = bx::uint32_min(dst.m_width, bi.m_dstX + bi.m_width) - bi.m_dstX;
uint32_t dstHeight = bx::uint32_min(dst.m_height, bi.m_dstY + bi.m_height) - bi.m_dstY;
uint32_t dstDepth = bx::uint32_min(dst.m_depth, bi.m_dstZ + bi.m_depth) - bi.m_dstZ;
uint32_t width = bx::uint32_min(srcWidth, dstWidth);
uint32_t height = bx::uint32_min(srcHeight, dstHeight);
uint32_t depth = bx::uint32_min(srcDepth, dstDepth);
GL_CHECK(glCopyImageSubData(src.m_id
, src.m_target
, bi.m_srcMip
, bi.m_srcX
, bi.m_srcY
, bi.m_srcZ
, dst.m_id
, dst.m_target
, bi.m_dstMip
, bi.m_dstX
, bi.m_dstY
, bi.m_dstZ
, width
, height
, bx::uint32_imax(depth, 1)
) );
}
}
}
void RendererContextGL::submit(Frame* _render, ClearQuad& _clearQuad, TextVideoMemBlitter& _textVideoMemBlitter)
{
if (_render->m_capture)
{
renderDocTriggerCapture();
}
m_glctx.makeCurrent(NULL);
BGFX_GL_PROFILER_BEGIN_LITERAL("rendererSubmit", kColorView);
if (1 < m_numWindows
&& m_vaoSupport)
{
m_vaoSupport = false;
GL_CHECK(glBindVertexArray(0) );
GL_CHECK(glDeleteVertexArrays(1, &m_vao) );
m_vao = 0;
}
const GLuint defaultVao = m_vao;
if (0 != defaultVao)
{
GL_CHECK(glBindVertexArray(defaultVao) );
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glFrontFace(GL_CW) );
updateResolution(_render->m_resolution);
int64_t timeBegin = bx::getHPCounter();
int64_t captureElapsed = 0;
uint32_t frameQueryIdx = UINT32_MAX;
if (m_timerQuerySupport
&& !BX_ENABLED(BX_PLATFORM_OSX) )
{
frameQueryIdx = m_gpuTimer.begin(BGFX_CONFIG_MAX_VIEWS);
}
if (0 < _render->m_iboffset)
{
BGFX_PROFILER_SCOPE("bgfx/Update transient index buffer", kColorResource);
TransientIndexBuffer* ib = _render->m_transientIb;
m_indexBuffers[ib->handle.idx].update(0, _render->m_iboffset, ib->data, true);
}
if (0 < _render->m_vboffset)
{
BGFX_PROFILER_SCOPE("bgfx/Update transient vertex buffer", kColorResource);
TransientVertexBuffer* vb = _render->m_transientVb;
m_vertexBuffers[vb->handle.idx].update(0, _render->m_vboffset, vb->data, true);
}
_render->sort();
RenderDraw currentState;
currentState.clear();
currentState.m_stateFlags = BGFX_STATE_NONE;
currentState.m_stencil = packStencil(BGFX_STENCIL_NONE, BGFX_STENCIL_NONE);
RenderBind currentBind;
currentBind.clear();
static ViewState viewState;
viewState.reset(_render);
ProgramHandle currentProgram = BGFX_INVALID_HANDLE;
ProgramHandle boundProgram = BGFX_INVALID_HANDLE;
SortKey key;
uint16_t view = UINT16_MAX;
FrameBufferHandle fbh = { BGFX_CONFIG_MAX_FRAME_BUFFERS };
BlitState bs(_render);
int32_t resolutionHeight = _render->m_resolution.height;
uint32_t blendFactor = 0;
uint8_t primIndex;
{
const uint64_t pt = 0;
primIndex = uint8_t(pt>>BGFX_STATE_PT_SHIFT);
}
PrimInfo prim = s_primInfo[primIndex];
GL_CHECK(glPolygonMode(GL_FRONT_AND_BACK
, _render->m_debug&BGFX_DEBUG_WIREFRAME
? GL_LINE
: GL_FILL
) );
bool wasCompute = false;
bool viewHasScissor = false;
Rect viewScissorRect;
viewScissorRect.clear();
uint16_t discardFlags = BGFX_CLEAR_NONE;
const bool blendIndependentSupported = s_extension[Extension::ARB_draw_buffers_blend].m_supported;
const bool computeSupported = false
|| (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) && s_extension[Extension::ARB_compute_shader].m_supported)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
;
const uint32_t maxComputeBindings = g_caps.limits.maxComputeBindings;
uint32_t statsNumPrimsSubmitted[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumPrimsRendered[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumInstances[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumIndices = 0;
uint32_t statsKeyType[2] = {};
Profiler<TimerQueryGL> profiler(
_render
, m_gpuTimer
, s_viewName
, m_timerQuerySupport && !BX_ENABLED(BX_PLATFORM_OSX)
);
if (m_occlusionQuerySupport)
{
m_occlusionQuery.resolve(_render);
}
if (0 == (_render->m_debug&BGFX_DEBUG_IFH) )
{
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
viewState.m_rect = _render->m_view[0].m_rect;
int32_t numItems = _render->m_numRenderItems;
for (int32_t item = 0; item < numItems;)
{
const uint64_t encodedKey = _render->m_sortKeys[item];
const bool isCompute = key.decode(encodedKey, _render->m_viewRemap);
statsKeyType[isCompute]++;
const bool viewChanged = 0
|| key.m_view != view
|| item == numItems
;
const uint32_t itemIdx = _render->m_sortValues[item];
const RenderItem& renderItem = _render->m_renderItem[itemIdx];
const RenderBind& renderBind = _render->m_renderItemBind[itemIdx];
++item;
if (viewChanged)
{
view = key.m_view;
currentProgram = BGFX_INVALID_HANDLE;
if (item > 1)
{
profiler.end();
}
BGFX_GL_PROFILER_END();
if (_render->m_view[view].m_fbh.idx != fbh.idx)
{
fbh = _render->m_view[view].m_fbh;
resolutionHeight = _render->m_resolution.height;
resolutionHeight = setFrameBuffer(fbh, resolutionHeight, discardFlags);
}
setViewType(view, " ");
BGFX_GL_PROFILER_BEGIN(view, kColorView);
profiler.begin(view);
viewState.m_rect = _render->m_view[view].m_rect;
const Rect& scissorRect = _render->m_view[view].m_scissor;
viewHasScissor = !scissorRect.isZero();
viewScissorRect = viewHasScissor ? scissorRect : viewState.m_rect;
GL_CHECK(glViewport(viewState.m_rect.m_x
, resolutionHeight-viewState.m_rect.m_height-viewState.m_rect.m_y
, viewState.m_rect.m_width
, viewState.m_rect.m_height
) );
Clear& clear = _render->m_view[view].m_clear;
discardFlags = clear.m_flags & BGFX_CLEAR_DISCARD_MASK;
if (BGFX_CLEAR_NONE != (clear.m_flags & BGFX_CLEAR_MASK) )
{
clearQuad(_clearQuad, viewState.m_rect, clear, resolutionHeight, _render->m_colorPalette);
}
GL_CHECK(glDisable(GL_STENCIL_TEST) );
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_LESS) );
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
submitBlit(bs, view);
}
if (isCompute)
{
if (!wasCompute)
{
wasCompute = true;
setViewType(view, "C");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorCompute);
}
if (computeSupported)
{
const RenderCompute& compute = renderItem.compute;
ProgramGL& program = m_program[key.m_program.idx];
GL_CHECK(glUseProgram(program.m_id) );
GLbitfield barrier = 0;
for (uint32_t ii = 0; ii < maxComputeBindings; ++ii)
{
const Binding& bind = renderBind.m_bind[ii];
if (kInvalidHandle != bind.m_idx)
{
switch (bind.m_type)
{
case Binding::Texture:
{
TextureGL& texture = m_textures[bind.m_idx];
texture.commit(ii, bind.m_samplerFlags, _render->m_colorPalette);
}
break;
case Binding::Image:
{
const TextureGL& texture = m_textures[bind.m_idx];
GL_CHECK(glBindImageTexture(ii
, texture.m_id
, bind.m_mip
, texture.isCubeMap() || texture.m_target == GL_TEXTURE_2D_ARRAY ? GL_TRUE : GL_FALSE
, 0
, s_access[bind.m_access]
, s_imageFormat[bind.m_format])
);
barrier |= GL_SHADER_IMAGE_ACCESS_BARRIER_BIT;
}
break;
case Binding::IndexBuffer:
{
const IndexBufferGL& buffer = m_indexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, ii, buffer.m_id) );
barrier |= GL_SHADER_STORAGE_BARRIER_BIT;
}
break;
case Binding::VertexBuffer:
{
const VertexBufferGL& buffer = m_vertexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, ii, buffer.m_id) );
barrier |= GL_SHADER_STORAGE_BARRIER_BIT;
}
break;
}
}
}
if (0 != barrier)
{
bool constantsChanged = compute.m_uniformBegin < compute.m_uniformEnd;
rendererUpdateUniforms(this, _render->m_uniformBuffer[compute.m_uniformIdx], compute.m_uniformBegin, compute.m_uniformEnd);
if (constantsChanged
&& NULL != program.m_constantBuffer)
{
commit(*program.m_constantBuffer);
}
viewState.setPredefined<1>(this, view, program, _render, compute);
if (isValid(compute.m_indirectBuffer) )
{
barrier |= GL_COMMAND_BARRIER_BIT;
const VertexBufferGL& vb = m_vertexBuffers[compute.m_indirectBuffer.idx];
if (currentState.m_indirectBuffer.idx != compute.m_indirectBuffer.idx)
{
currentState.m_indirectBuffer = compute.m_indirectBuffer;
GL_CHECK(glBindBuffer(GL_DISPATCH_INDIRECT_BUFFER, vb.m_id) );
}
uint32_t numDrawIndirect = UINT16_MAX == compute.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: compute.m_numIndirect
;
uintptr_t args = compute.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
for (uint32_t ii = 0; ii < numDrawIndirect; ++ii)
{
GL_CHECK(glDispatchComputeIndirect( (GLintptr)args) );
args += BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
}
}
else
{
if (isValid(currentState.m_indirectBuffer) )
{
currentState.m_indirectBuffer.idx = kInvalidHandle;
GL_CHECK(glBindBuffer(GL_DISPATCH_INDIRECT_BUFFER, 0) );
}
GL_CHECK(glDispatchCompute(compute.m_numX, compute.m_numY, compute.m_numZ) );
}
GL_CHECK(glMemoryBarrier(barrier) );
}
}
continue;
}
bool resetState = viewChanged || wasCompute;
if (wasCompute)
{
wasCompute = false;
setViewType(view, " ");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorDraw);
}
const RenderDraw& draw = renderItem.draw;
const bool hasOcclusionQuery = 0 != (draw.m_stateFlags & BGFX_STATE_INTERNAL_OCCLUSION_QUERY);
{
const bool occluded = true
&& isValid(draw.m_occlusionQuery)
&& !hasOcclusionQuery
&& !isVisible(_render, draw.m_occlusionQuery, 0 != (draw.m_submitFlags&BGFX_SUBMIT_INTERNAL_OCCLUSION_VISIBLE) )
;
if (occluded
|| _render->m_frameCache.isZeroArea(viewScissorRect, draw.m_scissor) )
{
if (resetState)
{
currentState.clear();
currentState.m_scissor = !draw.m_scissor;
currentBind.clear();
}
continue;
}
}
const uint64_t newFlags = draw.m_stateFlags;
uint64_t changedFlags = currentState.m_stateFlags ^ draw.m_stateFlags;
currentState.m_stateFlags = newFlags;
const uint64_t newStencil = draw.m_stencil;
uint64_t changedStencil = currentState.m_stencil ^ draw.m_stencil;
currentState.m_stencil = newStencil;
if (resetState)
{
currentState.clear();
currentState.m_scissor = !draw.m_scissor;
changedFlags = BGFX_STATE_MASK;
changedStencil = packStencil(BGFX_STENCIL_MASK, BGFX_STENCIL_MASK);
currentState.m_stateFlags = newFlags;
currentState.m_stencil = newStencil;
currentBind.clear();
}
uint16_t scissor = draw.m_scissor;
if (currentState.m_scissor != scissor)
{
currentState.m_scissor = scissor;
if (UINT16_MAX == scissor)
{
if (viewHasScissor)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(viewScissorRect.m_x
, resolutionHeight-viewScissorRect.m_height-viewScissorRect.m_y
, viewScissorRect.m_width
, viewScissorRect.m_height
) );
}
else
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
}
else
{
Rect scissorRect;
scissorRect.setIntersect(viewScissorRect, _render->m_frameCache.m_rectCache.m_cache[scissor]);
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(scissorRect.m_x
, resolutionHeight-scissorRect.m_height-scissorRect.m_y
, scissorRect.m_width
, scissorRect.m_height
) );
}
}
if (0 != changedStencil)
{
if (0 != newStencil)
{
GL_CHECK(glEnable(GL_STENCIL_TEST) );
uint32_t bstencil = unpackStencil(1, newStencil);
uint8_t frontAndBack = bstencil != BGFX_STENCIL_NONE && bstencil != unpackStencil(0, newStencil);
// uint32_t bchanged = unpackStencil(1, changedStencil);
// if (BGFX_STENCIL_FUNC_RMASK_MASK & bchanged)
// {
// uint32_t wmask = (bstencil&BGFX_STENCIL_FUNC_RMASK_MASK)>>BGFX_STENCIL_FUNC_RMASK_SHIFT;
// GL_CHECK(glStencilMask(wmask) );
// }
for (uint8_t ii = 0, num = frontAndBack+1; ii < num; ++ii)
{
uint32_t stencil = unpackStencil(ii, newStencil);
uint32_t changed = unpackStencil(ii, changedStencil);
GLenum face = s_stencilFace[frontAndBack+ii];
if ( (BGFX_STENCIL_TEST_MASK|BGFX_STENCIL_FUNC_REF_MASK|BGFX_STENCIL_FUNC_RMASK_MASK) & changed)
{
GLint ref = (stencil&BGFX_STENCIL_FUNC_REF_MASK)>>BGFX_STENCIL_FUNC_REF_SHIFT;
GLint mask = (stencil&BGFX_STENCIL_FUNC_RMASK_MASK)>>BGFX_STENCIL_FUNC_RMASK_SHIFT;
uint32_t func = (stencil&BGFX_STENCIL_TEST_MASK)>>BGFX_STENCIL_TEST_SHIFT;
GL_CHECK(glStencilFuncSeparate(face, s_cmpFunc[func], ref, mask) );
}
if ( (BGFX_STENCIL_OP_FAIL_S_MASK|BGFX_STENCIL_OP_FAIL_Z_MASK|BGFX_STENCIL_OP_PASS_Z_MASK) & changed)
{
uint32_t sfail = (stencil&BGFX_STENCIL_OP_FAIL_S_MASK)>>BGFX_STENCIL_OP_FAIL_S_SHIFT;
uint32_t zfail = (stencil&BGFX_STENCIL_OP_FAIL_Z_MASK)>>BGFX_STENCIL_OP_FAIL_Z_SHIFT;
uint32_t zpass = (stencil&BGFX_STENCIL_OP_PASS_Z_MASK)>>BGFX_STENCIL_OP_PASS_Z_SHIFT;
GL_CHECK(glStencilOpSeparate(face, s_stencilOp[sfail], s_stencilOp[zfail], s_stencilOp[zpass]) );
}
}
}
else
{
GL_CHECK(glDisable(GL_STENCIL_TEST) );
}
}
if ( (0
| BGFX_STATE_CULL_MASK
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_MASK
| BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_A
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_ALPHA_REF_MASK
| BGFX_STATE_PT_MASK
| BGFX_STATE_POINT_SIZE_MASK
| BGFX_STATE_MSAA
| BGFX_STATE_LINEAA
| BGFX_STATE_CONSERVATIVE_RASTER
| BGFX_STATE_FRONT_CCW
) & changedFlags)
{
if (BGFX_STATE_FRONT_CCW & changedFlags)
{
GL_CHECK(glFrontFace((BGFX_STATE_FRONT_CCW & newFlags) ? GL_CCW : GL_CW) );
}
if (BGFX_STATE_CULL_MASK & changedFlags)
{
if (BGFX_STATE_CULL_CCW & newFlags)
{
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glCullFace(GL_BACK) );
}
else if (BGFX_STATE_CULL_CW & newFlags)
{
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glCullFace(GL_FRONT) );
}
else
{
GL_CHECK(glDisable(GL_CULL_FACE) );
}
}
if (BGFX_STATE_WRITE_Z & changedFlags)
{
GL_CHECK(glDepthMask(!!(BGFX_STATE_WRITE_Z & newFlags) ) );
}
if (BGFX_STATE_DEPTH_TEST_MASK & changedFlags)
{
uint32_t func = (newFlags&BGFX_STATE_DEPTH_TEST_MASK)>>BGFX_STATE_DEPTH_TEST_SHIFT;
if (0 != func)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(s_cmpFunc[func]) );
}
else
{
if (BGFX_STATE_WRITE_Z & newFlags)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_TEST) );
}
}
}
if (BGFX_STATE_ALPHA_REF_MASK & changedFlags)
{
uint32_t ref = (newFlags&BGFX_STATE_ALPHA_REF_MASK)>>BGFX_STATE_ALPHA_REF_SHIFT;
viewState.m_alphaRef = ref/255.0f;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
if ( (BGFX_STATE_PT_POINTS|BGFX_STATE_POINT_SIZE_MASK) & changedFlags)
{
float pointSize = (float)(bx::uint32_max(1, (newFlags&BGFX_STATE_POINT_SIZE_MASK)>>BGFX_STATE_POINT_SIZE_SHIFT) );
GL_CHECK(glPointSize(pointSize) );
}
if (BGFX_STATE_MSAA & changedFlags)
{
GL_CHECK(BGFX_STATE_MSAA & newFlags
? glEnable(GL_MULTISAMPLE)
: glDisable(GL_MULTISAMPLE)
);
}
if (BGFX_STATE_LINEAA & changedFlags)
{
GL_CHECK(BGFX_STATE_LINEAA & newFlags
? glEnable(GL_LINE_SMOOTH)
: glDisable(GL_LINE_SMOOTH)
);
}
if (m_conservativeRasterSupport
&& BGFX_STATE_CONSERVATIVE_RASTER & changedFlags)
{
GL_CHECK(BGFX_STATE_CONSERVATIVE_RASTER & newFlags
? glEnable(GL_CONSERVATIVE_RASTERIZATION_NV)
: glDisable(GL_CONSERVATIVE_RASTERIZATION_NV)
);
}
}
if ( (BGFX_STATE_WRITE_A|BGFX_STATE_WRITE_RGB) & changedFlags)
{
const GLboolean rr = !!(newFlags&BGFX_STATE_WRITE_R);
const GLboolean gg = !!(newFlags&BGFX_STATE_WRITE_G);
const GLboolean bb = !!(newFlags&BGFX_STATE_WRITE_B);
const GLboolean aa = !!(newFlags&BGFX_STATE_WRITE_A);
GL_CHECK(glColorMask(rr, gg, bb, aa) );
}
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT
| BGFX_STATE_BLEND_ALPHA_TO_COVERAGE
) & changedFlags)
|| blendFactor != draw.m_rgba)
{
if (m_atocSupport)
{
if (BGFX_STATE_BLEND_ALPHA_TO_COVERAGE & newFlags)
{
GL_CHECK(glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
else
{
GL_CHECK(glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
}
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT) & newFlags)
|| blendFactor != draw.m_rgba)
{
const bool enabled = !!(BGFX_STATE_BLEND_MASK & newFlags);
const bool independent = !!(BGFX_STATE_BLEND_INDEPENDENT & newFlags)
&& blendIndependentSupported
;
const uint32_t blend = uint32_t( (newFlags&BGFX_STATE_BLEND_MASK)>>BGFX_STATE_BLEND_SHIFT);
const uint32_t srcRGB = (blend )&0xf;
const uint32_t dstRGB = (blend>> 4)&0xf;
const uint32_t srcA = (blend>> 8)&0xf;
const uint32_t dstA = (blend>>12)&0xf;
const uint32_t equ = uint32_t( (newFlags&BGFX_STATE_BLEND_EQUATION_MASK)>>BGFX_STATE_BLEND_EQUATION_SHIFT);
const uint32_t equRGB = (equ )&0x7;
const uint32_t equA = (equ>>3)&0x7;
const uint32_t numRt = getNumRt();
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| 1 >= numRt
|| !independent)
{
if (enabled)
{
GL_CHECK(glEnable(GL_BLEND) );
GL_CHECK(glBlendFuncSeparate(s_blendFactor[srcRGB].m_src
, s_blendFactor[dstRGB].m_dst
, s_blendFactor[srcA].m_src
, s_blendFactor[dstA].m_dst
) );
GL_CHECK(glBlendEquationSeparate(s_blendEquation[equRGB], s_blendEquation[equA]) );
if ( (s_blendFactor[srcRGB].m_factor || s_blendFactor[dstRGB].m_factor)
&& blendFactor != draw.m_rgba)
{
const uint32_t rgba = draw.m_rgba;
GLclampf rr = ( (rgba>>24) )/255.0f;
GLclampf gg = ( (rgba>>16)&0xff)/255.0f;
GLclampf bb = ( (rgba>> 8)&0xff)/255.0f;
GLclampf aa = ( (rgba )&0xff)/255.0f;
GL_CHECK(glBlendColor(rr, gg, bb, aa) );
}
}
else
{
GL_CHECK(glDisable(GL_BLEND) );
}
}
else
{
if (enabled)
{
GL_CHECK(glEnablei(GL_BLEND, 0) );
GL_CHECK(glBlendFuncSeparatei(0
, s_blendFactor[srcRGB].m_src
, s_blendFactor[dstRGB].m_dst
, s_blendFactor[srcA].m_src
, s_blendFactor[dstA].m_dst
) );
GL_CHECK(glBlendEquationSeparatei(0
, s_blendEquation[equRGB]
, s_blendEquation[equA]
) );
}
else
{
GL_CHECK(glDisablei(GL_BLEND, 0) );
}
for (uint32_t ii = 1, rgba = draw.m_rgba; ii < numRt; ++ii, rgba >>= 11)
{
if (0 != (rgba&0x7ff) )
{
const uint32_t src = (rgba )&0xf;
const uint32_t dst = (rgba>>4)&0xf;
const uint32_t equation = (rgba>>8)&0x7;
GL_CHECK(glEnablei(GL_BLEND, ii) );
GL_CHECK(glBlendFunci(ii, s_blendFactor[src].m_src, s_blendFactor[dst].m_dst) );
GL_CHECK(glBlendEquationi(ii, s_blendEquation[equation]) );
}
else
{
GL_CHECK(glDisablei(GL_BLEND, ii) );
}
}
}
}
else
{
GL_CHECK(glDisable(GL_BLEND) );
}
blendFactor = draw.m_rgba;
}
const uint64_t pt = newFlags&BGFX_STATE_PT_MASK;
primIndex = uint8_t(pt>>BGFX_STATE_PT_SHIFT);
prim = s_primInfo[primIndex];
}
bool programChanged = false;
bool constantsChanged = draw.m_uniformBegin < draw.m_uniformEnd;
bool bindAttribs = false;
rendererUpdateUniforms(this, _render->m_uniformBuffer[draw.m_uniformIdx], draw.m_uniformBegin, draw.m_uniformEnd);
if (key.m_program.idx != currentProgram.idx)
{
currentProgram = key.m_program;
GLuint id = isValid(currentProgram) ? m_program[currentProgram.idx].m_id : 0;
// Skip rendering if program index is valid, but program is invalid.
currentProgram = 0 == id ? ProgramHandle{kInvalidHandle} : currentProgram;
GL_CHECK(glUseProgram(id) );
programChanged =
constantsChanged =
bindAttribs = true;
}
if (isValid(currentProgram) )
{
ProgramGL& program = m_program[currentProgram.idx];
if (constantsChanged
&& NULL != program.m_constantBuffer)
{
commit(*program.m_constantBuffer);
}
viewState.setPredefined<1>(this, view, program, _render, draw);
{
for (uint32_t stage = 0; stage < BGFX_CONFIG_MAX_TEXTURE_SAMPLERS; ++stage)
{
const Binding& bind = renderBind.m_bind[stage];
Binding& current = currentBind.m_bind[stage];
if (current.m_idx != bind.m_idx
|| current.m_type != bind.m_type
|| current.m_samplerFlags != bind.m_samplerFlags
|| programChanged)
{
if (kInvalidHandle != bind.m_idx)
{
switch (bind.m_type)
{
case Binding::Texture:
{
TextureGL& texture = m_textures[bind.m_idx];
texture.commit(stage, bind.m_samplerFlags, _render->m_colorPalette);
}
break;
case Binding::IndexBuffer:
{
const IndexBufferGL& buffer = m_indexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, stage, buffer.m_id) );
}
break;
case Binding::VertexBuffer:
{
const VertexBufferGL& buffer = m_vertexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, stage, buffer.m_id) );
}
break;
}
}
}
current = bind;
}
}
{
bool diffStreamHandles = false;
bool diffIndexBuffer = false;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
if (currentState.m_stream[idx].m_handle.idx != draw.m_stream[idx].m_handle.idx)
{
diffStreamHandles = true;
break;
}
}
if (programChanged
|| currentState.m_streamMask != draw.m_streamMask
|| currentState.m_instanceDataBuffer.idx != draw.m_instanceDataBuffer.idx
|| currentState.m_instanceDataOffset != draw.m_instanceDataOffset
|| currentState.m_instanceDataStride != draw.m_instanceDataStride
|| diffStreamHandles)
{
currentState.m_streamMask = draw.m_streamMask;
currentState.m_instanceDataBuffer.idx = draw.m_instanceDataBuffer.idx;
currentState.m_instanceDataOffset = draw.m_instanceDataOffset;
currentState.m_instanceDataStride = draw.m_instanceDataStride;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
currentState.m_stream[idx].m_handle = draw.m_stream[idx].m_handle;
}
bindAttribs = true;
}
if (currentState.m_indexBuffer.idx != draw.m_indexBuffer.idx)
{
currentState.m_indexBuffer = draw.m_indexBuffer;
uint16_t handle = draw.m_indexBuffer.idx;
if (kInvalidHandle != handle)
{
IndexBufferGL& ib = m_indexBuffers[handle];
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib.m_id) );
}
else
{
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
}
diffIndexBuffer = true;
}
if (currentState.m_startIndex != draw.m_startIndex)
{
diffIndexBuffer = true;
}
if (0 != currentState.m_streamMask)
{
bool diffStartVertex = false;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
if (currentState.m_stream[idx].m_startVertex != draw.m_stream[idx].m_startVertex)
{
diffStartVertex = true;
break;
}
}
if (bindAttribs || diffStartVertex)
{
if (isValid(boundProgram) )
{
m_program[boundProgram.idx].unbindAttributes();
boundProgram = BGFX_INVALID_HANDLE;
}
boundProgram = currentProgram;
program.bindAttributesBegin();
if (UINT8_MAX != draw.m_streamMask)
{
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
currentState.m_stream[idx].m_startVertex = draw.m_stream[idx].m_startVertex;
const VertexBufferGL& vb = m_vertexBuffers[draw.m_stream[idx].m_handle.idx];
const uint16_t decl = isValid(draw.m_stream[idx].m_layoutHandle)
? draw.m_stream[idx].m_layoutHandle.idx
: vb.m_layoutHandle.idx;
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
program.bindAttributes(m_vertexLayouts[decl], draw.m_stream[idx].m_startVertex);
}
}
program.bindAttributesEnd();
}
if (bindAttribs || diffStartVertex || diffIndexBuffer)
{
if (isValid(draw.m_instanceDataBuffer) )
{
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, m_vertexBuffers[draw.m_instanceDataBuffer.idx].m_id) );
program.bindInstanceData(draw.m_instanceDataStride, draw.m_instanceDataOffset);
}
}
}
}
if (0 != currentState.m_streamMask)
{
uint32_t numVertices = draw.m_numVertices;
if (UINT32_MAX == numVertices)
{
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
const VertexBufferGL& vb = m_vertexBuffers[draw.m_stream[idx].m_handle.idx];
uint16_t decl = !isValid(vb.m_layoutHandle) ? draw.m_stream[idx].m_layoutHandle.idx : vb.m_layoutHandle.idx;
const VertexLayout& layout = m_vertexLayouts[decl];
numVertices = bx::uint32_min(numVertices, vb.m_size/layout.m_stride);
}
}
uint32_t numIndices = 0;
uint32_t numPrimsSubmitted = 0;
uint32_t numInstances = 0;
uint32_t numPrimsRendered = 0;
uint32_t numDrawIndirect = 0;
if (hasOcclusionQuery)
{
m_occlusionQuery.begin(_render, draw.m_occlusionQuery);
}
if (isValid(draw.m_indirectBuffer) )
{
const VertexBufferGL& vb = m_vertexBuffers[draw.m_indirectBuffer.idx];
if (currentState.m_indirectBuffer.idx != draw.m_indirectBuffer.idx)
{
currentState.m_indirectBuffer = draw.m_indirectBuffer;
GL_CHECK(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, vb.m_id) );
}
if (isValid(draw.m_indexBuffer) )
{
const IndexBufferGL& ib = m_indexBuffers[draw.m_indexBuffer.idx];
const bool hasIndex16 = 0 == (ib.m_flags & BGFX_BUFFER_INDEX32);
const GLenum indexFormat = hasIndex16
? GL_UNSIGNED_SHORT
: GL_UNSIGNED_INT
;
numDrawIndirect = UINT16_MAX == draw.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: draw.m_numIndirect
;
uintptr_t args = draw.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
GL_CHECK(glMultiDrawElementsIndirect(prim.m_type, indexFormat
, (void*)args
, numDrawIndirect
, BGFX_CONFIG_DRAW_INDIRECT_STRIDE
) );
}
else
{
numDrawIndirect = UINT16_MAX == draw.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: draw.m_numIndirect
;
uintptr_t args = draw.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
GL_CHECK(glMultiDrawArraysIndirect(prim.m_type
, (void*)args
, numDrawIndirect
, BGFX_CONFIG_DRAW_INDIRECT_STRIDE
) );
}
}
else
{
if (isValid(currentState.m_indirectBuffer) )
{
currentState.m_indirectBuffer.idx = kInvalidHandle;
GL_CHECK(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0) );
}
if (isValid(draw.m_indexBuffer) )
{
const IndexBufferGL& ib = m_indexBuffers[draw.m_indexBuffer.idx];
const bool hasIndex16 = 0 == (ib.m_flags & BGFX_BUFFER_INDEX32);
const uint32_t indexSize = hasIndex16 ? 2 : 4;
const GLenum indexFormat = hasIndex16
? GL_UNSIGNED_SHORT
: GL_UNSIGNED_INT
;
if (UINT32_MAX == draw.m_numIndices)
{
numIndices = ib.m_size/indexSize;
numPrimsSubmitted = numIndices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawElementsInstanced(prim.m_type
, numIndices
, indexFormat
, (void*)0
, draw.m_numInstances
) );
}
else if (prim.m_min <= draw.m_numIndices)
{
numIndices = draw.m_numIndices;
numPrimsSubmitted = numIndices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawElementsInstanced(prim.m_type
, numIndices
, indexFormat
, (void*)(uintptr_t)(draw.m_startIndex*indexSize)
, draw.m_numInstances
) );
}
}
else
{
numPrimsSubmitted = numVertices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawArraysInstanced(prim.m_type
, 0
, numVertices
, draw.m_numInstances
) );
}
}
if (hasOcclusionQuery)
{
m_occlusionQuery.end();
}
if(isValid(draw.m_instanceDataBuffer))
{
program.unbindInstanceData();
}
statsNumPrimsSubmitted[primIndex] += numPrimsSubmitted;
statsNumPrimsRendered[primIndex] += numPrimsRendered;
statsNumInstances[primIndex] += numInstances;
statsNumIndices += numIndices;
}
}
}
if (isValid(boundProgram) )
{
m_program[boundProgram.idx].unbindAttributes();
boundProgram = BGFX_INVALID_HANDLE;
}
if (wasCompute)
{
setViewType(view, "C");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorCompute);
}
submitBlit(bs, BGFX_CONFIG_MAX_VIEWS);
blitMsaaFbo();
if (m_vaoSupport)
{
GL_CHECK(glBindVertexArray(m_vao) );
}
if (0 < _render->m_numRenderItems)
{
if (0 != (m_resolution.reset & BGFX_RESET_FLUSH_AFTER_RENDER) )
{
GL_CHECK(glFlush() );
}
captureElapsed = -bx::getHPCounter();
capture();
captureElapsed += bx::getHPCounter();
profiler.end();
}
}
BGFX_GL_PROFILER_END();
m_glctx.makeCurrent(NULL);
int64_t timeEnd = bx::getHPCounter();
int64_t frameTime = timeEnd - timeBegin;
static int64_t min = frameTime;
static int64_t max = frameTime;
min = min > frameTime ? frameTime : min;
max = max < frameTime ? frameTime : max;
static uint32_t maxGpuLatency = 0;
static double maxGpuElapsed = 0.0f;
double elapsedGpuMs = 0.0;
if (UINT32_MAX != frameQueryIdx)
{
m_gpuTimer.end(frameQueryIdx);
const TimerQueryGL::Result& result = m_gpuTimer.m_result[BGFX_CONFIG_MAX_VIEWS];
double toGpuMs = 1000.0 / 1e9;
elapsedGpuMs = (result.m_end - result.m_begin) * toGpuMs;
maxGpuElapsed = elapsedGpuMs > maxGpuElapsed ? elapsedGpuMs : maxGpuElapsed;
maxGpuLatency = bx::uint32_imax(maxGpuLatency, result.m_pending-1);
}
const int64_t timerFreq = bx::getHPFrequency();
Stats& perfStats = _render->m_perfStats;
perfStats.cpuTimeBegin = timeBegin;
perfStats.cpuTimeEnd = timeEnd;
perfStats.cpuTimerFreq = timerFreq;
const TimerQueryGL::Result& result = m_gpuTimer.m_result[BGFX_CONFIG_MAX_VIEWS];
perfStats.gpuTimeBegin = result.m_begin;
perfStats.gpuTimeEnd = result.m_end;
perfStats.gpuTimerFreq = 1000000000;
perfStats.numDraw = statsKeyType[0];
perfStats.numCompute = statsKeyType[1];
perfStats.numBlit = _render->m_numBlitItems;
perfStats.maxGpuLatency = maxGpuLatency;
bx::memCopy(perfStats.numPrims, statsNumPrimsRendered, sizeof(perfStats.numPrims) );
perfStats.gpuMemoryMax = -INT64_MAX;
perfStats.gpuMemoryUsed = -INT64_MAX;
if (_render->m_debug & (BGFX_DEBUG_IFH|BGFX_DEBUG_STATS) )
{
BGFX_GL_PROFILER_BEGIN_LITERAL("debugstats", kColorFrame);
m_needPresent = true;
TextVideoMem& tvm = m_textVideoMem;
static int64_t next = timeEnd;
if (timeEnd >= next)
{
next = timeEnd + timerFreq;
double freq = double(timerFreq);
double toMs = 1000.0/freq;
tvm.clear();
uint16_t pos = 0;
tvm.printf(0, pos++, BGFX_CONFIG_DEBUG ? 0x8c : 0x8f
, " %s / " BX_COMPILER_NAME " / " BX_CPU_NAME " / " BX_ARCH_NAME " / " BX_PLATFORM_NAME " "
, getRendererName()
);
tvm.printf(0, pos++, 0x8f, " Vendor: %s ", m_vendor);
tvm.printf(0, pos++, 0x8f, " Renderer: %s ", m_renderer);
tvm.printf(0, pos++, 0x8f, " Version: %s ", m_version);
tvm.printf(0, pos++, 0x8f, " GLSL version: %s ", m_glslVersion);
char processMemoryUsed[16];
bx::prettify(processMemoryUsed, BX_COUNTOF(processMemoryUsed), bx::getProcessMemoryUsed() );
tvm.printf(0, pos++, 0x8f, " Memory: %s (process) ", processMemoryUsed);
pos = 10;
tvm.printf(10, pos++, 0x8b, " Frame: %7.3f, % 7.3f \x1f, % 7.3f \x1e [ms] / % 6.2f FPS "
, double(frameTime)*toMs
, double(min)*toMs
, double(max)*toMs
, freq/frameTime
);
const uint32_t msaa = (m_resolution.reset&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;
tvm.printf(10, pos++, 0x8b, " Reset flags: [%c] vsync, [%c] MSAAx%d, [%c] MaxAnisotropy "
, !!(m_resolution.reset&BGFX_RESET_VSYNC) ? '\xfe' : ' '
, 0 != msaa ? '\xfe' : ' '
, 1<<msaa
, !!(m_resolution.reset&BGFX_RESET_MAXANISOTROPY) ? '\xfe' : ' '
);
double elapsedCpuMs = double(frameTime)*toMs;
tvm.printf(10, pos++, 0x8b, " Submitted: %5d (draw %5d, compute %4d) / CPU %7.4f [ms] %c GPU %7.4f [ms] (latency %d) "
, _render->m_numRenderItems
, statsKeyType[0]
, statsKeyType[1]
, elapsedCpuMs
, elapsedCpuMs > elapsedGpuMs ? '>' : '<'
, maxGpuElapsed
, maxGpuLatency
);
maxGpuLatency = 0;
maxGpuElapsed = 0.0;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_primInfo); ++ii)
{
tvm.printf(10, pos++, 0x8b, " %10s: %7d (#inst: %5d), submitted: %7d "
, getName(Topology::Enum(ii) )
, statsNumPrimsRendered[ii]
, statsNumInstances[ii]
, statsNumPrimsSubmitted[ii]
);
}
if (NULL != m_renderdocdll)
{
tvm.printf(tvm.m_width-27, 0, 0x4f, " [F11 - RenderDoc capture] ");
}
tvm.printf(10, pos++, 0x8b, " Indices: %7d ", statsNumIndices);
// tvm.printf(10, pos++, 0x8b, " Uniform size: %7d, Max: %7d ", _render->m_uniformEnd, _render->m_uniformMax);
tvm.printf(10, pos++, 0x8b, " DVB size: %7d ", _render->m_vboffset);
tvm.printf(10, pos++, 0x8b, " DIB size: %7d ", _render->m_iboffset);
pos++;
tvm.printf(10, pos++, 0x8b, " State cache: ");
tvm.printf(10, pos++, 0x8b, " Sampler ");
tvm.printf(10, pos++, 0x8b, " %6d "
, m_samplerStateCache.getCount()
);
#if BGFX_CONFIG_RENDERER_OPENGL
if (s_extension[Extension::ATI_meminfo].m_supported)
{
GLint vboFree[4];
GL_CHECK(glGetIntegerv(GL_VBO_FREE_MEMORY_ATI, vboFree) );
GLint texFree[4];
GL_CHECK(glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, texFree) );
GLint rbfFree[4];
GL_CHECK(glGetIntegerv(GL_RENDERBUFFER_FREE_MEMORY_ATI, rbfFree) );
pos++;
tvm.printf(10, pos++, 0x8c, " -------------| free| free b| aux| aux fb ");
char tmp0[16];
char tmp1[16];
char tmp2[16];
char tmp3[16];
bx::prettify(tmp0, BX_COUNTOF(tmp0), vboFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), vboFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), vboFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), vboFree[3]);
tvm.printf(10, pos++, 0x8b, " VBO: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
bx::prettify(tmp0, BX_COUNTOF(tmp0), texFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), texFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), texFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), texFree[3]);
tvm.printf(10, pos++, 0x8b, " Texture: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
bx::prettify(tmp0, BX_COUNTOF(tmp0), rbfFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), rbfFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), rbfFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), rbfFree[3]);
tvm.printf(10, pos++, 0x8b, " Render Buffer: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
}
else if (s_extension[Extension::NVX_gpu_memory_info].m_supported)
{
GLint dedicated;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &dedicated) );
GLint totalAvail;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &totalAvail) );
GLint currAvail;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &currAvail) );
GLint evictedCount;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX, &evictedCount) );
GLint evictedMemory;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX, &evictedMemory) );
pos++;
char tmp0[16];
char tmp1[16];
bx::prettify(tmp0, BX_COUNTOF(tmp0), dedicated);
tvm.printf(10, pos++, 0x8b, " Dedicated: %10s ", tmp0);
bx::prettify(tmp0, BX_COUNTOF(tmp0), currAvail);
bx::prettify(tmp1, BX_COUNTOF(tmp1), totalAvail);
tvm.printf(10, pos++, 0x8b, " Available: %10s / %10s ", tmp0, tmp1);
bx::prettify(tmp0, BX_COUNTOF(tmp0), evictedCount);
bx::prettify(tmp1, BX_COUNTOF(tmp1), evictedMemory);
tvm.printf(10, pos++, 0x8b, " Eviction: %10s / %10s ", tmp0, tmp1);
}
#endif // BGFX_CONFIG_RENDERER_OPENGL
pos++;
double captureMs = double(captureElapsed)*toMs;
tvm.printf(10, pos++, 0x8b, " Capture: %7.4f [ms] ", captureMs);
uint8_t attr[2] = { 0x8c, 0x8a };
uint8_t attrIndex = _render->m_waitSubmit < _render->m_waitRender;
tvm.printf(10, pos++, attr[attrIndex&1], " Submit wait: %7.4f [ms] ", double(_render->m_waitSubmit)*toMs);
tvm.printf(10, pos++, attr[(attrIndex+1)&1], " Render wait: %7.4f [ms] ", double(_render->m_waitRender)*toMs);
min = frameTime;
max = frameTime;
}
blit(this, _textVideoMemBlitter, tvm);
BGFX_GL_PROFILER_END();
}
else if (_render->m_debug & BGFX_DEBUG_TEXT)
{
BGFX_GL_PROFILER_BEGIN_LITERAL("debugtext", kColorFrame);
blit(this, _textVideoMemBlitter, _render->m_textVideoMem);
BGFX_GL_PROFILER_END();
}
}
} } // namespace bgfx
#else
namespace bgfx { namespace gl
{
RendererContextI* rendererCreate(const Init& _init)
{
BX_UNUSED(_init);
return NULL;
}
void rendererDestroy()
{
}
} /* namespace gl */ } // namespace bgfx
#endif // (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
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