| #!amber |
| |
| # Copyright 2019 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 bug found by GraphicsFuzz. |
| |
| # Short description: A fragment shader with a switch and some data flow |
| |
| # Checks that all pixels are red. |
| # Passes because main always writes red to _GLF_color. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '-Os' |
| |
| # Derived from the following GLSL. |
| |
| # Fragment shader GLSL: |
| # #version 310 es |
| # |
| # precision highp float; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # vec2 injectionSwitch; |
| # }; |
| # |
| # void main() |
| # { |
| # float data[2]; |
| # data[0] = injectionSwitch.x; |
| # data[1] = injectionSwitch.x; |
| # |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # |
| # if (data[1] > 1.0) |
| # { |
| # switch (int(injectionSwitch.x)) |
| # { |
| # case 0: |
| # float temp = 1.0; |
| # case 1: |
| # data[int(injectionSwitch.x)] = temp; |
| # _GLF_color = vec4(0.0, 0.0, 0.0, 0.0); |
| # default: |
| # break; |
| # } |
| # } |
| # } |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 58 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %30 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %11 "data" |
| OpName %15 "buf0" |
| OpMemberName %15 0 "injectionSwitch" |
| OpName %17 "" |
| OpName %30 "_GLF_color" |
| OpMemberDecorate %15 0 Offset 0 |
| OpDecorate %15 Block |
| OpDecorate %17 DescriptorSet 0 |
| OpDecorate %17 Binding 0 |
| OpDecorate %30 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeInt 32 0 |
| %8 = OpConstant %7 2 |
| %9 = OpTypeArray %6 %8 |
| %10 = OpTypePointer Function %9 |
| %12 = OpTypeInt 32 1 |
| %13 = OpConstant %12 0 |
| %14 = OpTypeVector %6 2 |
| %15 = OpTypeStruct %14 |
| %16 = OpTypePointer Uniform %15 |
| %17 = OpVariable %16 Uniform |
| %18 = OpConstant %7 0 |
| %19 = OpTypePointer Uniform %6 |
| %22 = OpTypePointer Function %6 |
| %24 = OpConstant %12 1 |
| %28 = OpTypeVector %6 4 |
| %29 = OpTypePointer Output %28 |
| %30 = OpVariable %29 Output |
| %31 = OpConstant %6 1 |
| %32 = OpConstant %6 0 |
| %33 = OpConstantComposite %28 %31 %32 %32 %31 |
| %36 = OpTypeBool |
| %53 = OpConstantComposite %28 %32 %32 %32 %32 |
| %57 = OpUndef %6 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %11 = OpVariable %10 Function |
| %20 = OpAccessChain %19 %17 %13 %18 |
| %21 = OpLoad %6 %20 |
| %23 = OpAccessChain %22 %11 %13 |
| OpStore %23 %21 |
| %27 = OpAccessChain %22 %11 %24 |
| OpStore %27 %21 |
| OpStore %30 %33 |
| %35 = OpLoad %6 %27 |
| %37 = OpFOrdGreaterThan %36 %35 %31 |
| OpSelectionMerge %39 None |
| OpBranchConditional %37 %38 %39 |
| %38 = OpLabel |
| %42 = OpConvertFToS %12 %21 |
| OpSelectionMerge %45 None |
| OpSwitch %42 %45 0 %43 1 %44 |
| %45 = OpLabel |
| OpBranch %39 |
| %43 = OpLabel |
| OpBranch %44 |
| %44 = OpLabel |
| %56 = OpPhi %6 %57 %38 %31 %43 |
| %52 = OpAccessChain %22 %11 %42 |
| OpStore %52 %56 |
| OpStore %30 %53 |
| OpBranch %45 |
| %39 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA |
| 0.0 1.0 |
| 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 |
| BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 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 |