| #!amber |
| |
| # Copyright 2021 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| |
| # A test for a coverage-gap found by the GraphicsFuzz project. |
| |
| # Short description: A fragment shader that covers specific VTN code path |
| |
| # The test passes because the shader always writes red. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # mat2 m = transpose(mat2(1, 2, 3, 4)) / 2.0; |
| # |
| # if (m == mat2(0.5, 1.5, 1.0, 2.0)) |
| # _GLF_color = vec4(1, 0, 0, 1); |
| # else |
| # _GLF_color = vec4(0); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 46 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %41 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %10 "m" |
| OpName %41 "_GLF_color" |
| OpDecorate %41 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypeMatrix %7 2 |
| %9 = OpTypePointer Function %8 |
| %11 = OpConstant %6 1 |
| %12 = OpConstant %6 2 |
| %13 = OpConstantComposite %7 %11 %12 |
| %14 = OpConstant %6 3 |
| %15 = OpConstant %6 4 |
| %16 = OpConstantComposite %7 %14 %15 |
| %17 = OpConstantComposite %8 %13 %16 |
| %22 = OpConstant %6 0.5 |
| %23 = OpConstant %6 1.5 |
| %24 = OpConstantComposite %7 %22 %23 |
| %25 = OpConstantComposite %8 %24 %13 |
| %26 = OpTypeBool |
| %29 = OpTypeVector %26 2 |
| %39 = OpTypeVector %6 4 |
| %40 = OpTypePointer Output %39 |
| %41 = OpVariable %40 Output |
| %42 = OpConstant %6 0 |
| %43 = OpConstantComposite %39 %11 %42 %42 %11 |
| %45 = OpConstantComposite %39 %42 %42 %42 %42 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %10 = OpVariable %9 Function |
| %18 = OpTranspose %8 %17 |
| %19 = OpFDiv %6 %11 %12 |
| %20 = OpMatrixTimesScalar %8 %18 %19 |
| OpStore %10 %20 |
| %21 = OpLoad %8 %10 |
| %27 = OpCompositeExtract %7 %21 0 |
| %28 = OpCompositeExtract %7 %25 0 |
| %30 = OpFOrdEqual %29 %27 %28 |
| %31 = OpAll %26 %30 |
| %32 = OpCompositeExtract %7 %21 1 |
| %33 = OpCompositeExtract %7 %25 1 |
| %34 = OpFOrdEqual %29 %32 %33 |
| %35 = OpAll %26 %34 |
| %36 = OpLogicalAnd %26 %31 %35 |
| OpSelectionMerge %38 None |
| OpBranchConditional %36 %37 %44 |
| %37 = OpLabel |
| OpStore %41 %43 |
| OpBranch %38 |
| %44 = OpLabel |
| OpStore %41 %45 |
| OpBranch %38 |
| %38 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| |
| BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM |
| |
| PIPELINE graphics variant_pipeline |
| ATTACH variant_vertex_shader |
| ATTACH variant_fragment_shader |
| FRAMEBUFFER_SIZE 256 256 |
| BIND BUFFER variant_framebuffer AS color LOCATION 0 |
| END |
| CLEAR_COLOR variant_pipeline 0 0 0 255 |
| |
| CLEAR variant_pipeline |
| RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 |
| |
| EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 |