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Added explicit texture mip count, and per-binding sampler LOD clamp. (#4002)

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This commit is contained in:
Branimir Karadžić
2026-09-28 22:00:14 -07:00
committed by GitHub
parent ce3bee65f2
commit 968e4f8dd9
26 changed files with 368 additions and 117 deletions
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src/renderer_vk.cpp
+8 -4
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@@ -3958,11 +3958,13 @@ VK_IMPORT_DEVICE
return getRenderPass(num, formats, aspects, resolve, samples, _clearFlags, 0, _outRenderPass, _outHashKey);
}
VkSampler getSampler(uint32_t _flags, VkFormat _format, const float _palette[][4])
VkSampler getSampler(uint32_t _flags, VkFormat _format, const float _palette[][4], uint8_t _lodMin = 0, uint8_t _lodMax = UINT8_MAX)
{
uint32_t index = ( (_flags & BGFX_SAMPLER_BORDER_COLOR_MASK) >> BGFX_SAMPLER_BORDER_COLOR_SHIFT);
index = bx::min<uint32_t>(BGFX_CONFIG_MAX_COLOR_PALETTE - 1, index);
const uint32_t lod = (uint32_t(_lodMin) << 8) | _lodMax;
_flags &= BGFX_SAMPLER_BITS_MASK;
_flags &= ~(m_deviceFeatures.samplerAnisotropy ? 0 : (BGFX_SAMPLER_MIN_ANISOTROPIC | BGFX_SAMPLER_MAG_ANISOTROPIC) );
@@ -3992,6 +3994,7 @@ VK_IMPORT_DEVICE
hash.add(_flags);
hash.add(-1);
hash.add(VK_FORMAT_UNDEFINED);
hash.add(lod);
hashKey = hash.end();
sampler = m_samplerCache.find(hashKey);
@@ -4003,6 +4006,7 @@ VK_IMPORT_DEVICE
hash.add(_flags);
hash.add(index);
hash.add(_format);
hash.add(lod);
hashKey = hash.end();
const uint32_t colorHashKey = m_samplerBorderColorCache.find(hashKey);
@@ -4042,8 +4046,8 @@ VK_IMPORT_DEVICE
sci.maxAnisotropy = m_maxAnisotropy;
sci.compareEnable = 0 != cmpFunc;
sci.compareOp = s_cmpFunc[cmpFunc];
sci.minLod = 0.0f;
sci.maxLod = VK_LOD_CLAMP_NONE;
sci.minLod = float(_lodMin) * 0.25f;
sci.maxLod = UINT8_MAX == _lodMax ? VK_LOD_CLAMP_NONE : float(_lodMax) * 0.25f;
sci.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK;
sci.unnormalizedCoordinates = VK_FALSE;
@@ -4626,7 +4630,7 @@ VK_IMPORT_DEVICE
: (uint32_t)texture.m_flags
;
const bool sampleStencil = !!(samplerFlags & BGFX_SAMPLER_SAMPLE_STENCIL);
VkSampler sampler = getSampler(samplerFlags, texture.m_format, _palette);
VkSampler sampler = getSampler(samplerFlags, texture.m_format, _palette, bind.m_lod.min, bind.m_lod.max);
const VkImageViewType type = UINT32_MAX == bindInfo.index
? texture.m_type