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Preserve vertex export locations for mixed pixel interpolation

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This commit is contained in:
nmzik
2026-10-08 20:05:32 +04:00
parent b65dc12208
commit b38b7454a6
7 changed files with 100 additions and 10 deletions
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tests/ShaderRecompilerComputeTests.cpp
+65
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@@ -1353,6 +1353,7 @@ struct GraphicsCase {
std::vector<u32> push_constants;
std::vector<u32> pixel_interpolator_settings;
bool pixel_no_perspective = false;
bool provoking_vtx_last = false;
std::vector<u32> vertices;
bool pixel_ancillary = false;
bool pixel_front_face = false;
@@ -1449,6 +1450,20 @@ void CheckPixelParameterAliases() {
pixel.interpolator_settings[1] = 0u;
pixel.interpolator_settings[2] = 1u;
const std::array<uint32_t, 3> active = {0, 1, 2};
Require(name, "ordinary mixed aliases",
ShaderPixelParameterLocation(pixel, active, 0) == 0u &&
ShaderPixelParameterLocation(pixel, active, 1) == 0u &&
ShaderPixelParameterLocation(pixel, active, 2) == 1u,
"flat/smooth aliases must retain the real vertex export location");
std::vector<uint32_t> ordinary_key, rectangle_key, provoking_key;
BuildStageStaticKey(pixel, ordinary_key);
pixel.parameter_mode = ShaderPixelParameterMode::LastVertex;
BuildStageStaticKey(pixel, provoking_key);
pixel.parameter_mode = ShaderPixelParameterMode::Rectangle;
BuildStageStaticKey(pixel, rectangle_key);
Require(name, "interpolation specialization",
ordinary_key != rectangle_key && ordinary_key != provoking_key,
"rectangle and provoking-vertex modes must participate in the shader key");
Require(name, "reserved physical locations",
ShaderPixelParameterLocation(pixel, active, 0) == 0u &&
ShaderPixelParameterLocation(pixel, active, 1) == 2u &&
@@ -1473,6 +1488,7 @@ void CheckRectListShaders() {
vertex.stage.program = &vertex_program;
vertex.stage.resources = &empty_snapshot;
ShaderPixelInputInfo pixel{};
pixel.parameter_mode = ShaderPixelParameterMode::Rectangle;
pixel.input_num = 2;
pixel.interpolator_settings[0] = 0x400u;
pixel.interpolator_settings[1] = 0;
@@ -1774,6 +1790,8 @@ CompiledShader CompileFragmentCase(const GraphicsCase &test) {
? 1u
: static_cast<u32>(test.pixel_interpolator_settings.size());
pixel_info.ps_no_perspective = test.pixel_no_perspective;
pixel_info.parameter_mode = test.provoking_vtx_last ? ShaderPixelParameterMode::LastVertex
: ShaderPixelParameterMode::FirstVertex;
pixel_info.ps_ancillary = test.pixel_ancillary;
pixel_info.ps_front_face = test.pixel_front_face;
pixel_info.ps_pos_w = test.pixel_position_w;
@@ -16928,6 +16946,12 @@ public:
raster.frontFace = vk::FrontFace::eCounterClockwise;
raster.lineWidth = 1.0f;
vk::PipelineRasterizationProvokingVertexStateCreateInfoEXT provoking_vertex{};
if (test.provoking_vtx_last) {
provoking_vertex.provokingVertexMode = vk::ProvokingVertexModeEXT::eLastVertex;
raster.pNext = &provoking_vertex;
}
vk::PipelineMultisampleStateCreateInfo multisample{};
multisample.sType = vk::StructureType::ePipelineMultisampleStateCreateInfo;
multisample.rasterizationSamples = test.samples;
@@ -35871,6 +35895,38 @@ GraphicsCase GraphicsSmoothRawInputAlias() {
return test;
}
GraphicsCase GraphicsSmoothFlatInputAlias(bool flat_first, bool provoking_last = false) {
auto test = GraphicsSmoothRawInputAlias();
test.name = provoking_last
? (flat_first ? "GraphicsFlatSmoothAliasLast" : "GraphicsSmoothFlatAliasLast")
: (flat_first ? "GraphicsFlatSmoothInputAlias" : "GraphicsSmoothFlatInputAlias");
test.pixel_custom_interpolation_mask = 0;
test.provoking_vtx_last = provoking_last;
test.pixel_interpolator_settings = flat_first ? std::vector<u32>{0x400u, 0u}
: std::vector<u32>{0u, 0x400u};
const u32 smooth = flat_first ? 1u : 0u;
const u32 flat = smooth ^ 1u;
// One export carries smooth values (2,4,8) and packed light IDs (5,7,11).
// Flat P0 preserves the ID bits; flat P1/P2 uses the same provoking vertex.
test.vertices[4] = 0x3f800005u;
test.vertices[10] = 0x3f800007u;
test.vertices[16] = 0x3f80000bu;
test.fragment_code = {EncodeVintrp(0x00, 0, smooth, 1, 0),
EncodeVintrp(0x01, 0, smooth, 1, 1),
EncodeVintrp(0x02, 1, flat, 2, 2),
EncodeVop2(0x1b, 1, InlineU32(63), 1),
EncodeVop1(0x06, 1, Vgpr(1)),
EncodeVintrp(0x00, 2, flat, 1, 0),
EncodeVintrp(0x01, 2, flat, 1, 1),
EncodeExp0(0x00, 0xf), EncodeExp1(0, 1, 2, 0)};
AppendEnd(&test.fragment_code);
test.expected_pixel = {0x40700000u, provoking_last ? 0x41300000u : 0x40a00000u,
provoking_last ? 0x41000000u : 0x40000000u, 0x40700000u};
test.opcodes.insert(test.opcodes.end(),
{ShaderOpcode::V_AND_B32, ShaderOpcode::V_CVT_F32_U32});
return test;
}
GraphicsCase GraphicsAncillaryLayer(bool front_face) {
GraphicsCase test;
test.name = front_face ? "GraphicsAncillaryAfterFrontFace" : "GraphicsAncillaryLayer";
@@ -36714,6 +36770,10 @@ std::vector<GraphicsCase> MakeGraphicsCases() {
GraphicsPackedHalfInputAlias(false),
GraphicsPackedHalfInputAlias(true),
GraphicsSmoothRawInputAlias(),
GraphicsSmoothFlatInputAlias(false),
GraphicsSmoothFlatInputAlias(true),
GraphicsSmoothFlatInputAlias(false, true),
GraphicsSmoothFlatInputAlias(true, true),
GraphicsAncillaryLayer(false),
GraphicsAncillaryLayer(true),
GraphicsAncillarySampleId(),
@@ -42196,6 +42256,11 @@ int main(int argc, char **argv) {
RunGraphicsCase(&vulkan, GraphicsPackedHalfInputAlias(false));
RunGraphicsCase(&vulkan, GraphicsPackedHalfInputAlias(true));
RunGraphicsCase(&vulkan, GraphicsSmoothRawInputAlias());
RunGraphicsCase(&vulkan, GraphicsSmoothFlatInputAlias(false));
RunGraphicsCase(&vulkan, GraphicsSmoothFlatInputAlias(true));
RunGraphicsCase(&vulkan, GraphicsSmoothFlatInputAlias(false, true));
RunGraphicsCase(&vulkan, GraphicsSmoothFlatInputAlias(true, true));
RunGraphicsCase(&vulkan, GraphicsFlatInterpolatorExport());
return 0;
}
if (argc == 2 && std::strcmp(argv[1], "--clip-control-only") == 0) {