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Merge pull request #3434 from namkazt/patch-2
vk_shader: Implement ImageLoad
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commit
ef27b4b7b5
@ -107,6 +107,8 @@ bool VKDevice::Create(const vk::DispatchLoaderDynamic& dldi, vk::Instance instan
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features.occlusionQueryPrecise = true;
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features.fragmentStoresAndAtomics = true;
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features.shaderImageGatherExtended = true;
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features.shaderStorageImageReadWithoutFormat =
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is_shader_storage_img_read_without_format_supported;
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features.shaderStorageImageWriteWithoutFormat = true;
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features.textureCompressionASTC_LDR = is_optimal_astc_supported;
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@ -465,6 +467,8 @@ void VKDevice::SetupFamilies(const vk::DispatchLoaderDynamic& dldi, vk::SurfaceK
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void VKDevice::SetupFeatures(const vk::DispatchLoaderDynamic& dldi) {
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const auto supported_features{physical.getFeatures(dldi)};
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is_shader_storage_img_read_without_format_supported =
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supported_features.shaderStorageImageReadWithoutFormat;
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is_optimal_astc_supported = IsOptimalAstcSupported(supported_features, dldi);
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}
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@ -122,6 +122,11 @@ public:
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return properties.limits.maxPushConstantsSize;
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}
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/// Returns true if Shader storage Image Read Without Format supported.
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bool IsShaderStorageImageReadWithoutFormatSupported() const {
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return is_shader_storage_img_read_without_format_supported;
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}
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/// Returns true if ASTC is natively supported.
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bool IsOptimalAstcSupported() const {
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return is_optimal_astc_supported;
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@ -227,6 +232,8 @@ private:
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bool ext_depth_range_unrestricted{}; ///< Support for VK_EXT_depth_range_unrestricted.
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bool ext_shader_viewport_index_layer{}; ///< Support for VK_EXT_shader_viewport_index_layer.
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bool nv_device_diagnostic_checkpoints{}; ///< Support for VK_NV_device_diagnostic_checkpoints.
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bool is_shader_storage_img_read_without_format_supported{}; ///< Support for shader storage
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///< image read without format
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// Telemetry parameters
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std::string vendor_name; ///< Device's driver name.
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@ -292,6 +292,10 @@ public:
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}
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}
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if (device.IsShaderStorageImageReadWithoutFormatSupported()) {
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AddCapability(spv::Capability::StorageImageReadWithoutFormat);
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}
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if (device.IsFloat16Supported()) {
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AddCapability(spv::Capability::Float16);
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}
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@ -1755,8 +1759,16 @@ private:
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}
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Expression ImageLoad(Operation operation) {
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UNIMPLEMENTED();
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return {};
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if (!device.IsShaderStorageImageReadWithoutFormatSupported()) {
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return {v_float_zero, Type::Float};
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}
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const auto& meta{std::get<MetaImage>(operation.GetMeta())};
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const Id coords = GetCoordinates(operation, Type::Int);
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const Id texel = OpImageRead(t_uint4, GetImage(operation), coords);
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return {OpCompositeExtract(t_uint, texel, meta.element), Type::Uint};
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}
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Expression ImageStore(Operation operation) {
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