165 lines
5.1 KiB
Plaintext
165 lines
5.1 KiB
Plaintext
#!amber
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# Copyright 2020 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 GraphicsFuzz.
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# Short description: A fragment shader that covers a specific value tracking code path
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# The test passes because the shader always writes red.
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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 310 es
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# precision highp float;
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#
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# float quarter;
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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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# void main()
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# {
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# vec4 N = vec4(1, 2, 3, 4);
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# vec4 I = vec4(4.0, 87.59, quarter, 92.51);
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# vec4 Nref = vec4(17.05, -6.1, 4329.3705, 2.7);
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# vec4 v = faceforward(N, I, Nref);
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#
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# if (v == vec4(-1, -2, -3, -4))
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# _GLF_color = vec4(1, 0, 0, 1);
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# else
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# _GLF_color = vec4(0);
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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; 8
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; Bound: 56
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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" %51
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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OpName %4 "main"
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OpName %9 "N"
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OpName %15 "I"
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OpName %17 "buf0"
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OpMemberName %17 0 "quarter"
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OpName %19 ""
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OpName %27 "Nref"
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OpName %33 "v"
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OpName %51 "_GLF_color"
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OpMemberDecorate %17 0 Offset 0
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OpDecorate %17 Block
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OpDecorate %19 DescriptorSet 0
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OpDecorate %19 Binding 0
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OpDecorate %51 Location 0
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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 4
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%8 = OpTypePointer Function %7
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%10 = OpConstant %6 1
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%11 = OpConstant %6 2
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%12 = OpConstant %6 3
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%13 = OpConstant %6 4
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%14 = OpConstantComposite %7 %10 %11 %12 %13
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%16 = OpConstant %6 87.5899963
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%17 = OpTypeStruct %6
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%18 = OpTypePointer Uniform %17
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%19 = OpVariable %18 Uniform
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%20 = OpTypeInt 32 1
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%21 = OpConstant %20 0
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%22 = OpTypePointer Uniform %6
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%25 = OpConstant %6 92.5100021
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%28 = OpConstant %6 17.0499992
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%29 = OpConstant %6 -6.0999999
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%30 = OpConstant %6 4329.37061
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%31 = OpConstant %6 2.70000005
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%32 = OpConstantComposite %7 %28 %29 %30 %31
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%39 = OpConstant %6 -1
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%40 = OpConstant %6 -2
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%41 = OpConstant %6 -3
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%42 = OpConstant %6 -4
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%43 = OpConstantComposite %7 %39 %40 %41 %42
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%44 = OpTypeBool
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%45 = OpTypeVector %44 4
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%50 = OpTypePointer Output %7
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%51 = OpVariable %50 Output
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%52 = OpConstant %6 0
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%53 = OpConstantComposite %7 %10 %52 %52 %10
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%55 = OpConstantComposite %7 %52 %52 %52 %52
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%9 = OpVariable %8 Function
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%15 = OpVariable %8 Function
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%27 = OpVariable %8 Function
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%33 = OpVariable %8 Function
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OpStore %9 %14
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%23 = OpAccessChain %22 %19 %21
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%24 = OpLoad %6 %23
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%26 = OpCompositeConstruct %7 %13 %16 %24 %25
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OpStore %15 %26
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OpStore %27 %32
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%34 = OpLoad %7 %9
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%35 = OpLoad %7 %15
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%36 = OpLoad %7 %27
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%37 = OpExtInst %7 %1 FaceForward %34 %35 %36
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OpStore %33 %37
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%38 = OpLoad %7 %33
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%46 = OpFOrdEqual %45 %38 %43
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%47 = OpAll %44 %46
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OpSelectionMerge %49 None
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OpBranchConditional %47 %48 %54
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%48 = OpLabel
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OpStore %51 %53
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OpBranch %49
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%54 = OpLabel
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OpStore %51 %55
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OpBranch %49
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%49 = 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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# quarter
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BUFFER variant_quarter DATA_TYPE float DATA
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0.25
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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_quarter 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 256 256 EQ_RGBA 255 0 0 255
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