| #!amber |
| |
| # Copyright 2021 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 coverage-gap found by the GraphicsFuzz project. |
| |
| # Short description: A fragment shader that covers specific BRW code paths |
| |
| # The test passes because the shader always writes red. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # |
| # #define _int_0 _GLF_uniform_int_values[0] |
| # |
| # precision highp int; |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_int_values: 0 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # int _GLF_uniform_int_values[1]; |
| # }; |
| # |
| # // Contents of one: 1 |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # uint one; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # // Function is missing return value at the end, |
| # // but this function is never called. |
| # float func() |
| # { |
| # switch(1) |
| # { |
| # case 0: |
| # return 1.0; |
| # } |
| # } |
| # |
| # void main() |
| # { |
| # vec4 v = vec4(1.0); |
| # |
| # // Always false. |
| # if (gl_FragCoord.y < 0.0) |
| # { |
| # v = vec4(func()); |
| # } |
| # |
| # // Always false. |
| # if (packUnorm4x8(v) == 1u) |
| # { |
| # return; |
| # } |
| # |
| # // Always true. |
| # if ((1u << one) == 2u) |
| # { |
| # _GLF_color = vec4(1, 0, 0, 1); |
| # } |
| # else |
| # { |
| # _GLF_color = vec4(_int_0); |
| # } |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 67 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %23 %55 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %8 "func(" |
| OpName %20 "v" |
| OpName %23 "gl_FragCoord" |
| OpName %42 "buf1" |
| OpMemberName %42 0 "one" |
| OpName %44 "" |
| OpName %55 "_GLF_color" |
| OpName %59 "buf0" |
| OpMemberName %59 0 "_GLF_uniform_int_values" |
| OpName %61 "" |
| OpDecorate %23 BuiltIn FragCoord |
| OpMemberDecorate %42 0 Offset 0 |
| OpDecorate %42 Block |
| OpDecorate %44 DescriptorSet 0 |
| OpDecorate %44 Binding 1 |
| OpDecorate %55 Location 0 |
| OpDecorate %58 ArrayStride 16 |
| OpMemberDecorate %59 0 Offset 0 |
| OpDecorate %59 Block |
| OpDecorate %61 DescriptorSet 0 |
| OpDecorate %61 Binding 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeFunction %6 |
| %10 = OpTypeInt 32 1 |
| %11 = OpConstant %10 1 |
| %14 = OpConstant %6 1 |
| %18 = OpTypeVector %6 4 |
| %19 = OpTypePointer Function %18 |
| %21 = OpConstantComposite %18 %14 %14 %14 %14 |
| %22 = OpTypePointer Input %18 |
| %23 = OpVariable %22 Input |
| %24 = OpTypeInt 32 0 |
| %25 = OpConstant %24 1 |
| %26 = OpTypePointer Input %6 |
| %29 = OpConstant %6 0 |
| %30 = OpTypeBool |
| %42 = OpTypeStruct %24 |
| %43 = OpTypePointer Uniform %42 |
| %44 = OpVariable %43 Uniform |
| %45 = OpConstant %10 0 |
| %46 = OpTypePointer Uniform %24 |
| %50 = OpConstant %24 2 |
| %54 = OpTypePointer Output %18 |
| %55 = OpVariable %54 Output |
| %56 = OpConstantComposite %18 %14 %29 %29 %14 |
| %58 = OpTypeArray %10 %25 |
| %59 = OpTypeStruct %58 |
| %60 = OpTypePointer Uniform %59 |
| %61 = OpVariable %60 Uniform |
| %62 = OpTypePointer Uniform %10 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpVariable %19 Function |
| OpStore %20 %21 |
| %27 = OpAccessChain %26 %23 %25 |
| %28 = OpLoad %6 %27 |
| %31 = OpFOrdLessThan %30 %28 %29 |
| OpSelectionMerge %33 None |
| OpBranchConditional %31 %32 %33 |
| %32 = OpLabel |
| %34 = OpFunctionCall %6 %8 |
| %35 = OpCompositeConstruct %18 %34 %34 %34 %34 |
| OpStore %20 %35 |
| OpBranch %33 |
| %33 = OpLabel |
| %36 = OpLoad %18 %20 |
| %37 = OpExtInst %24 %1 PackUnorm4x8 %36 |
| %38 = OpIEqual %30 %37 %25 |
| OpSelectionMerge %40 None |
| OpBranchConditional %38 %39 %40 |
| %39 = OpLabel |
| OpReturn |
| %40 = OpLabel |
| %47 = OpAccessChain %46 %44 %45 |
| %48 = OpLoad %24 %47 |
| %49 = OpShiftLeftLogical %24 %25 %48 |
| %51 = OpIEqual %30 %49 %50 |
| OpSelectionMerge %53 None |
| OpBranchConditional %51 %52 %57 |
| %52 = OpLabel |
| OpStore %55 %56 |
| OpBranch %53 |
| %57 = OpLabel |
| %63 = OpAccessChain %62 %61 %45 %45 |
| %64 = OpLoad %10 %63 |
| %65 = OpConvertSToF %6 %64 |
| %66 = OpCompositeConstruct %18 %65 %65 %65 %65 |
| OpStore %55 %66 |
| OpBranch %53 |
| %53 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %8 = OpFunction %6 None %7 |
| %9 = OpLabel |
| OpSelectionMerge %13 None |
| OpSwitch %11 %13 0 %12 |
| %12 = OpLabel |
| OpReturnValue %14 |
| %13 = OpLabel |
| %17 = OpUndef %6 |
| OpReturnValue %17 |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # one |
| BUFFER variant_one DATA_TYPE uint32 STD140 DATA |
| 1 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 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_one AS uniform DESCRIPTOR_SET 0 BINDING 1 |
| BIND BUFFER variant__GLF_uniform_int_values 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 256 256 EQ_RGBA 255 0 0 255 |