158 lines
4.8 KiB
Plaintext
158 lines
4.8 KiB
Plaintext
#!amber
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# Copyright 2018 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# A test for a bug found by GraphicsFuzz.
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# A fragment shader that uses vector swizzles, struct initializers, and min.
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# Derived from the following GLSL fragment shader.
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# We check that the top-left pixel is red. The test passes because the
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# first if statement checks if the x coordinate is less than 10 and if so writes
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# red to _GLF_color and then returns.
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# #version 310 es
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#
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# precision highp float;
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# precision highp int;
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#
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# struct S {
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# vec2 s2;
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# };
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#
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# layout(location=0) out vec4 _GLF_color;
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#
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# layout(set = 0, binding = 0) uniform buf0 {
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# vec2 injectionSwitch;
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# };
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#
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# void main()
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# {
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# if (gl_FragCoord.x < 10.0) {
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# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
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# return;
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# }
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# vec4 v4 = vec4(injectionSwitch.y);
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# vec2 p = S(v4.xy).s2;
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# v4.xy = p;
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# v4.xy = (min(vec4(1.0), v4)).xy;
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# _GLF_color = vec4(v4.x, 0.0, 0.0, 1.0);
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# }
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SHADER vertex variant_vertex_shader PASSTHROUGH
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SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
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; SPIR-V
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; Version: 1.0
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; Generator: Khronos SPIR-V Tools Assembler; 0
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; Bound: 45
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; Schema: 0
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3 %4
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OpExecutionMode %2 OriginUpperLeft
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OpSource ESSL 310
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OpName %2 "main"
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OpName %3 "gl_FragCoord"
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OpName %4 "_GLF_color"
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OpName %5 "buf0"
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OpMemberName %5 0 "injectionSwitch"
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OpName %6 ""
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OpDecorate %3 BuiltIn FragCoord
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OpDecorate %4 Location 0
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OpMemberDecorate %5 0 Offset 0
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OpDecorate %5 Block
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OpDecorate %6 DescriptorSet 0
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OpDecorate %6 Binding 0
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%7 = OpTypeVoid
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%8 = OpTypeFunction %7
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%9 = OpTypeFloat 32
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%10 = OpTypeVector %9 4
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%11 = OpTypePointer Input %10
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%3 = OpVariable %11 Input
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%12 = OpTypeInt 32 0
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%13 = OpConstant %12 0
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%14 = OpTypePointer Input %9
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%15 = OpConstant %9 10
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%16 = OpTypeBool
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%17 = OpTypePointer Output %10
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%4 = OpVariable %17 Output
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%18 = OpConstant %9 1
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%19 = OpConstant %9 0
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%20 = OpConstantComposite %10 %18 %19 %19 %18
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%21 = OpTypeVector %9 2
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%5 = OpTypeStruct %21
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%22 = OpTypePointer Uniform %5
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%6 = OpVariable %22 Uniform
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%23 = OpTypeInt 32 1
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%24 = OpConstant %23 0
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%25 = OpConstant %12 1
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%26 = OpTypePointer Uniform %9
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%27 = OpConstantComposite %10 %18 %18 %18 %18
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%2 = OpFunction %7 None %8
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%28 = OpLabel
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OpBranch %29
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%29 = OpLabel
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OpLoopMerge %30 %31 None
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OpBranch %32
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%32 = OpLabel
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%33 = OpAccessChain %14 %3 %13
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%34 = OpLoad %9 %33
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%35 = OpFOrdLessThan %16 %34 %15
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OpSelectionMerge %36 None
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OpBranchConditional %35 %37 %36
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%37 = OpLabel
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OpStore %4 %20
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OpBranch %30
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%36 = OpLabel
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%38 = OpAccessChain %26 %6 %24 %25
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%39 = OpLoad %9 %38
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%40 = OpCompositeConstruct %10 %39 %39 %39 %39
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%41 = OpVectorShuffle %10 %40 %40 4 5 2 3
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%42 = OpExtInst %10 %1 FMin %27 %41
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%43 = OpCompositeExtract %9 %42 0
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%44 = OpCompositeConstruct %10 %43 %19 %19 %18
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OpStore %4 %44
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OpBranch %30
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%31 = OpLabel
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OpBranch %29
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%30 = OpLabel
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OpReturn
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OpFunctionEnd
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END
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# uniforms for variant
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# injectionSwitch
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BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
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0.0 1.0
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END
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BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
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PIPELINE graphics variant_pipeline
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ATTACH variant_vertex_shader
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ATTACH variant_fragment_shader
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FRAMEBUFFER_SIZE 256 256
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BIND BUFFER variant_framebuffer AS color LOCATION 0
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BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 0
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END
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CLEAR_COLOR variant_pipeline 0 0 0 255
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CLEAR variant_pipeline
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RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
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EXPECT variant_framebuffer IDX 0 0 SIZE 1 1 EQ_RGBA 255 0 0 255
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