| #!amber |
| |
| # Copyright 2018 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. |
| |
| # A fragment shader that uses vector swizzles, struct initializers, and min. |
| # Derived from the following GLSL fragment shader. |
| # We check that the top-left pixel is red. The test passes because the |
| # first if statement checks if the x coordinate is less than 10 and if so writes |
| # red to _GLF_color and then returns. |
| |
| # #version 310 es |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # struct S { |
| # vec2 s2; |
| # }; |
| # |
| # layout(location=0) out vec4 _GLF_color; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 { |
| # vec2 injectionSwitch; |
| # }; |
| # |
| # void main() |
| # { |
| # if (gl_FragCoord.x < 10.0) { |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # return; |
| # } |
| # vec4 v4 = vec4(injectionSwitch.y); |
| # vec2 p = S(v4.xy).s2; |
| # v4.xy = p; |
| # v4.xy = (min(vec4(1.0), v4)).xy; |
| # _GLF_color = vec4(v4.x, 0.0, 0.0, 1.0); |
| # } |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos SPIR-V Tools Assembler; 0 |
| ; Bound: 45 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %2 "main" %3 %4 |
| OpExecutionMode %2 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %2 "main" |
| OpName %3 "gl_FragCoord" |
| OpName %4 "_GLF_color" |
| OpName %5 "buf0" |
| OpMemberName %5 0 "injectionSwitch" |
| OpName %6 "" |
| OpDecorate %3 BuiltIn FragCoord |
| OpDecorate %4 Location 0 |
| OpMemberDecorate %5 0 Offset 0 |
| OpDecorate %5 Block |
| OpDecorate %6 DescriptorSet 0 |
| OpDecorate %6 Binding 0 |
| %7 = OpTypeVoid |
| %8 = OpTypeFunction %7 |
| %9 = OpTypeFloat 32 |
| %10 = OpTypeVector %9 4 |
| %11 = OpTypePointer Input %10 |
| %3 = OpVariable %11 Input |
| %12 = OpTypeInt 32 0 |
| %13 = OpConstant %12 0 |
| %14 = OpTypePointer Input %9 |
| %15 = OpConstant %9 10 |
| %16 = OpTypeBool |
| %17 = OpTypePointer Output %10 |
| %4 = OpVariable %17 Output |
| %18 = OpConstant %9 1 |
| %19 = OpConstant %9 0 |
| %20 = OpConstantComposite %10 %18 %19 %19 %18 |
| %21 = OpTypeVector %9 2 |
| %5 = OpTypeStruct %21 |
| %22 = OpTypePointer Uniform %5 |
| %6 = OpVariable %22 Uniform |
| %23 = OpTypeInt 32 1 |
| %24 = OpConstant %23 0 |
| %25 = OpConstant %12 1 |
| %26 = OpTypePointer Uniform %9 |
| %27 = OpConstantComposite %10 %18 %18 %18 %18 |
| %2 = OpFunction %7 None %8 |
| %28 = OpLabel |
| OpBranch %29 |
| %29 = OpLabel |
| OpLoopMerge %30 %31 None |
| OpBranch %32 |
| %32 = OpLabel |
| %33 = OpAccessChain %14 %3 %13 |
| %34 = OpLoad %9 %33 |
| %35 = OpFOrdLessThan %16 %34 %15 |
| OpSelectionMerge %36 None |
| OpBranchConditional %35 %37 %36 |
| %37 = OpLabel |
| OpStore %4 %20 |
| OpBranch %30 |
| %36 = OpLabel |
| %38 = OpAccessChain %26 %6 %24 %25 |
| %39 = OpLoad %9 %38 |
| %40 = OpCompositeConstruct %10 %39 %39 %39 %39 |
| %41 = OpVectorShuffle %10 %40 %40 4 5 2 3 |
| %42 = OpExtInst %10 %1 FMin %27 %41 |
| %43 = OpCompositeExtract %9 %42 0 |
| %44 = OpCompositeConstruct %10 %43 %19 %19 %18 |
| OpStore %4 %44 |
| OpBranch %30 |
| %31 = OpLabel |
| OpBranch %29 |
| %30 = 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 1 1 EQ_RGBA 255 0 0 255 |