224 lines
7.4 KiB
Plaintext
224 lines
7.4 KiB
Plaintext
#!amber
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# Copyright 2022 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 coverage-gap found by the GraphicsFuzz project.
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# Short description: A fragment shader that covers specific LLVM code paths
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# The test passes because the shader always writes red.
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# Optimized using spirv-opt with the following arguments:
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# '-Os'
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# spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af
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SHADER vertex variant_vertex_shader PASSTHROUGH
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# variant_fragment_shader is derived from the following GLSL:
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# #version 320 es
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# #define _int_0 _GLF_uniform_int_values[0]
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# #define _int_1 _GLF_uniform_int_values[1]
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# #define _float_0_25 _GLF_uniform_float_values[0]
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# #define _float_1_0 _GLF_uniform_float_values[1]
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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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# // Contents of _GLF_uniform_float_values: [0.25, 1.0]
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# float _GLF_uniform_float_values[2];
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# };
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#
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# // Contents of _GLF_uniform_int_values: [0, 1]
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# layout(set = 0, binding = 1) uniform buf1
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# {
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# int _GLF_uniform_int_values[2];
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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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# float func(vec2 v)
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# {
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# switch(1)
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# {
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# case 0:
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# return 1.0;
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# case 1:
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# // Trasposing an identity matrix has no effect. The line below simplifies to
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# // clamp(vec2(0.25, 0.25, vec2(0.5, 0.5), vec2(1.0, 1.0))).x = vec2(0.5, 0.5).x = 0.5
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# return clamp(vec2(transpose(mat4(_float_0_25))), v, vec2(transpose(mat4(_float_1_0)))).x;
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# }
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# }
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#
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# void main()
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# {
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# // The fraction parts of gl_FragCoord components are always 0.5 (the center of the pixel).
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# // The function returns 0.5.
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# if(func(fract(gl_FragCoord.xy)) == 0.5)
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# {
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# _GLF_color = vec4(1, _int_0, _int_0, _int_1);
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# }
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# else
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# {
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# _GLF_color = vec4(_int_0);
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# }
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# }
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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 Glslang Reference Front End; 10
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; Bound: 124
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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 %4 "main" %61 %73
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 320
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OpName %4 "main"
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OpName %23 "buf0"
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OpMemberName %23 0 "_GLF_uniform_float_values"
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OpName %25 ""
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OpName %61 "gl_FragCoord"
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OpName %73 "_GLF_color"
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OpName %75 "buf1"
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OpMemberName %75 0 "_GLF_uniform_int_values"
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OpName %77 ""
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OpDecorate %22 ArrayStride 16
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OpMemberDecorate %23 0 Offset 0
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OpDecorate %23 Block
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OpDecorate %25 DescriptorSet 0
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OpDecorate %25 Binding 0
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OpDecorate %61 BuiltIn FragCoord
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OpDecorate %73 Location 0
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OpDecorate %74 ArrayStride 16
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OpMemberDecorate %75 0 Offset 0
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OpDecorate %75 Block
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OpDecorate %77 DescriptorSet 0
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OpDecorate %77 Binding 1
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeFloat 32
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%7 = OpTypeVector %6 2
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%13 = OpTypeInt 32 1
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%14 = OpConstant %13 1
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%18 = OpConstant %6 1
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%20 = OpTypeInt 32 0
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%21 = OpConstant %20 2
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%22 = OpTypeArray %6 %21
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%23 = OpTypeStruct %22
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%24 = OpTypePointer Uniform %23
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%25 = OpVariable %24 Uniform
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%26 = OpConstant %13 0
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%27 = OpTypePointer Uniform %6
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%30 = OpTypeVector %6 4
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%31 = OpTypeMatrix %30 4
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%32 = OpConstant %6 0
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%60 = OpTypePointer Input %30
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%61 = OpVariable %60 Input
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%67 = OpConstant %6 0.5
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%68 = OpTypeBool
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%72 = OpTypePointer Output %30
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%73 = OpVariable %72 Output
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%74 = OpTypeArray %13 %21
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%75 = OpTypeStruct %74
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%76 = OpTypePointer Uniform %75
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%77 = OpVariable %76 Uniform
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%78 = OpTypePointer Uniform %13
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%123 = OpUndef %6
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%62 = OpLoad %30 %61
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%63 = OpVectorShuffle %7 %62 %62 0 1
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%64 = OpExtInst %7 %1 Fract %63
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%98 = OpAccessChain %27 %25 %26 %26
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%99 = OpLoad %6 %98
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%100 = OpCompositeConstruct %30 %99 %32 %32 %32
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%101 = OpCompositeConstruct %30 %32 %99 %32 %32
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%102 = OpCompositeConstruct %30 %32 %32 %99 %32
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%103 = OpCompositeConstruct %30 %32 %32 %32 %99
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%104 = OpCompositeConstruct %31 %100 %101 %102 %103
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%105 = OpTranspose %31 %104
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%106 = OpCompositeExtract %6 %105 0 0
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%108 = OpCompositeConstruct %7 %106 %123
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%110 = OpAccessChain %27 %25 %26 %14
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%111 = OpLoad %6 %110
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%112 = OpCompositeConstruct %30 %111 %32 %32 %32
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%113 = OpCompositeConstruct %30 %32 %111 %32 %32
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%114 = OpCompositeConstruct %30 %32 %32 %111 %32
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%115 = OpCompositeConstruct %30 %32 %32 %32 %111
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%116 = OpCompositeConstruct %31 %112 %113 %114 %115
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%117 = OpTranspose %31 %116
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%118 = OpCompositeExtract %6 %117 0 0
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%120 = OpCompositeConstruct %7 %118 %123
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%121 = OpExtInst %7 %1 FClamp %108 %64 %120
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%122 = OpCompositeExtract %6 %121 0
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%69 = OpFOrdEqual %68 %122 %67
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OpSelectionMerge %71 None
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OpBranchConditional %69 %70 %89
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%89 = OpLabel
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%90 = OpAccessChain %78 %77 %26 %26
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%91 = OpLoad %13 %90
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%92 = OpConvertSToF %6 %91
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%93 = OpCompositeConstruct %30 %92 %92 %92 %92
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OpStore %73 %93
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OpBranch %71
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%70 = OpLabel
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%79 = OpAccessChain %78 %77 %26 %26
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%80 = OpLoad %13 %79
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%81 = OpConvertSToF %6 %80
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%85 = OpAccessChain %78 %77 %26 %14
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%86 = OpLoad %13 %85
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%87 = OpConvertSToF %6 %86
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%88 = OpCompositeConstruct %30 %18 %81 %81 %87
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OpStore %73 %88
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OpBranch %71
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%71 = 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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# _GLF_uniform_int_values
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BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
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0 1
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END
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# _GLF_uniform_float_values
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BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
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0.25 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 32 32
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BIND BUFFER variant_framebuffer AS color LOCATION 0
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BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 1
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BIND BUFFER variant__GLF_uniform_float_values 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 32 32
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EXPECT variant_framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 255 0 0 255
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