137 lines
4.4 KiB
Plaintext
137 lines
4.4 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 arbitrary precision float usage.
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# The test passes because 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(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 v = vec4(1, 2, 3, 4);
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# float dist1 = distance(tanh(v), sinh(v) / cosh(v));
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# float dist2 = distance(tanh(v), vec4(0.76159, 0.96403, 0.99505, 0.99933));
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#
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# // tanh(v) == sinh(v) / cosh(v). Allow some room for precision errors.
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# if (dist1 < 0.1 && dist2 < 0.1)
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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: 49
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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" %44
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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 "v"
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OpName %16 "dist1"
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OpName %25 "dist2"
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OpName %44 "_GLF_color"
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OpDecorate %44 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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%15 = OpTypePointer Function %6
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%28 = OpConstant %6 0.761590004
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%29 = OpConstant %6 0.964030027
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%30 = OpConstant %6 0.995050013
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%31 = OpConstant %6 0.999329984
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%32 = OpConstantComposite %7 %28 %29 %30 %31
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%35 = OpConstant %6 0.100000001
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%36 = OpTypeBool
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%43 = OpTypePointer Output %7
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%44 = OpVariable %43 Output
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%45 = OpConstant %6 0
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%46 = OpConstantComposite %7 %10 %45 %45 %10
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%48 = OpConstantComposite %7 %45 %45 %45 %45
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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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%16 = OpVariable %15 Function
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%25 = OpVariable %15 Function
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OpStore %9 %14
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%17 = OpLoad %7 %9
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%18 = OpExtInst %7 %1 Tanh %17
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%19 = OpLoad %7 %9
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%20 = OpExtInst %7 %1 Sinh %19
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%21 = OpLoad %7 %9
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%22 = OpExtInst %7 %1 Cosh %21
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%23 = OpFDiv %7 %20 %22
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%24 = OpExtInst %6 %1 Distance %18 %23
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OpStore %16 %24
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%26 = OpLoad %7 %9
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%27 = OpExtInst %7 %1 Tanh %26
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%33 = OpExtInst %6 %1 Distance %27 %32
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OpStore %25 %33
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%34 = OpLoad %6 %16
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%37 = OpFOrdLessThan %36 %34 %35
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%38 = OpLoad %6 %25
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%39 = OpFOrdLessThan %36 %38 %35
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%40 = OpLogicalAnd %36 %37 %39
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OpSelectionMerge %42 None
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OpBranchConditional %40 %41 %47
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%41 = OpLabel
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OpStore %44 %46
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OpBranch %42
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%47 = OpLabel
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OpStore %44 %48
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OpBranch %42
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%42 = OpLabel
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OpReturn
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OpFunctionEnd
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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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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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