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Implemented BGFX_SAMPLER_SAMPLE_STENCIL in all backends. (#3884)

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This commit is contained in:
Branimir Karadžić
2026-08-13 15:38:58 -07:00
committed by GitHub
parent 3d3b08778e
commit 56ef37bcf8
12 changed files with 465 additions and 82 deletions
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src/renderer_webgpu.cpp
+34 -5
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@@ -2605,14 +2605,28 @@ WGPU_IMPORT
case ShaderBinding::Type::Sampler:
{
TextureWGPU& texture = m_textures[bind.m_idx];
const uint32_t resolvedFlags = 0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & bind.m_samplerFlags)
? bind.m_samplerFlags
: texture.m_flags
;
WGPUTextureSampleType sampleType = WGPUTextureSampleType_Depth != shaderBind.sampleType
? s_textureFormat[texture.m_textureFormat].m_samplerType
: shaderBind.sampleType
;
if (0 != (resolvedFlags & BGFX_SAMPLER_SAMPLE_STENCIL) )
{
// Stencil aspect is viewed as Stencil8, which is an unsigned integer format.
sampleType = WGPUTextureSampleType_Uint;
}
WGPUSamplerBindingType samplerBindingType = WGPUSamplerBindingType_Filtering;
switch (sampleType)
{
case WGPUTextureSampleType_Uint:
case WGPUTextureSampleType_Sint:
case WGPUTextureSampleType_UnfilterableFloat: samplerBindingType = WGPUSamplerBindingType_NonFiltering; break;
case WGPUTextureSampleType_Depth: samplerBindingType = WGPUSamplerBindingType_Comparison; break;
default: break;
@@ -3146,6 +3160,14 @@ WGPU_IMPORT
{
const TextureWGPU& texture = m_textures[bind.m_idx];
const uint32_t resolvedFlags = 0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & bind.m_samplerFlags)
? bind.m_samplerFlags
: texture.m_flags
;
const bool sampleStencil = Binding::Texture == bind.m_type
&& 0 != (resolvedFlags & BGFX_SAMPLER_SAMPLE_STENCIL)
;
bindGroupEntry[entryCount++] =
{
.nextInChain = NULL,
@@ -3155,8 +3177,8 @@ WGPU_IMPORT
.size = 0,
.sampler = NULL,
.textureView = _isCompute
? texture.getTextureView(bind.m_firstMip, bind.m_numMips, Binding::Image == bind.m_type, 0, UINT16_MAX, Binding::Image == bind.m_type && UINT16_MAX != bind.m_numLayers)
: texture.getTextureView(bind.m_firstMip, bind.m_numMips, false, bind.m_firstLayer, bind.m_numLayers)
? texture.getTextureView(bind.m_firstMip, bind.m_numMips, Binding::Image == bind.m_type, 0, UINT16_MAX, Binding::Image == bind.m_type && UINT16_MAX != bind.m_numLayers, sampleStencil)
: texture.getTextureView(bind.m_firstMip, bind.m_numMips, false, bind.m_firstLayer, bind.m_numLayers, false, sampleStencil)
,
};
@@ -4403,7 +4425,7 @@ WGPU_IMPORT
return sampler;
}
WGPUTextureView TextureWGPU::getTextureView(uint8_t _baseMipLevel, uint8_t _mipLevelCount, bool _storage, uint16_t _baseArrayLayer, uint16_t _arrayLayerCount, bool _force2DArray) const
WGPUTextureView TextureWGPU::getTextureView(uint8_t _baseMipLevel, uint8_t _mipLevelCount, bool _storage, uint16_t _baseArrayLayer, uint16_t _arrayLayerCount, bool _force2DArray, bool _stencil) const
{
bx::HashMurmur3 murmur;
murmur.begin();
@@ -4414,6 +4436,7 @@ WGPU_IMPORT
murmur.add(_baseArrayLayer);
murmur.add(_arrayLayerCount);
murmur.add(_force2DArray);
murmur.add(_stencil);
const uint32_t hash = murmur.end();
WGPUTextureView textureView = s_renderWGPU->m_textureViewStateCache.find(hash);
@@ -4443,13 +4466,19 @@ WGPU_IMPORT
{
.nextInChain = NULL,
.label = WGPU_STRING_VIEW_INIT,
.format = s_textureFormat[m_textureFormat].m_fmt,
.format = _stencil
? WGPUTextureFormat_Stencil8
: s_textureFormat[m_textureFormat].m_fmt
,
.dimension = tvd,
.baseMipLevel = _baseMipLevel,
.mipLevelCount = UINT8_MAX == _mipLevelCount ? WGPU_MIP_LEVEL_COUNT_UNDEFINED : _mipLevelCount,
.baseArrayLayer = _baseArrayLayer,
.arrayLayerCount = arrayLayerCount,
.aspect = WGPUTextureAspect_All,
.aspect = _stencil
? WGPUTextureAspect_StencilOnly
: WGPUTextureAspect_All
,
.usage = 0
| WGPUTextureUsage_TextureBinding
| (_storage ? WGPUTextureUsage_StorageBinding : 0)