| # Copyright 2018 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 bug found by GraphicsFuzz. |
| # A fragment shader that uses pow. |
| # Derived from the following GLSL fragment shader. |
| # We check that all pixels are red. The test passes because main does |
| # some computation and then writes red to _GLF_color. |
| |
| # #version 310 es |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # vec2 a = vec2(1.0); |
| # vec4 b = vec4(1.0); |
| # pow(vec4(a, vec2(1.0)), b); |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # } |
| |
| [vertex shader passthrough] |
| |
| [fragment shader spirv] |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 28 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %main "main" %_GLF_color |
| OpExecutionMode %main OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %main "main" |
| OpName %a "a" |
| OpName %b "b" |
| OpName %_GLF_color "_GLF_color" |
| OpDecorate %_GLF_color Location 0 |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %v2float = OpTypeVector %float 2 |
| %_ptr_Function_v2float = OpTypePointer Function %v2float |
| %float_1 = OpConstant %float 1 |
| %11 = OpConstantComposite %v2float %float_1 %float_1 |
| %v4float = OpTypeVector %float 4 |
| %_ptr_Function_v4float = OpTypePointer Function %v4float |
| %15 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1 |
| %_ptr_Output_v4float = OpTypePointer Output %v4float |
| %_GLF_color = OpVariable %_ptr_Output_v4float Output |
| %float_0 = OpConstant %float 0 |
| %27 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1 |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| %a = OpVariable %_ptr_Function_v2float Function |
| %b = OpVariable %_ptr_Function_v4float Function |
| OpStore %a %11 |
| OpStore %b %15 |
| %16 = OpLoad %v2float %a |
| %17 = OpCompositeExtract %float %16 0 |
| %18 = OpCompositeExtract %float %16 1 |
| %19 = OpCompositeExtract %float %11 0 |
| %20 = OpCompositeExtract %float %11 1 |
| %21 = OpCompositeConstruct %v4float %17 %18 %19 %20 |
| %22 = OpLoad %v4float %b |
| %23 = OpExtInst %v4float %1 Pow %21 %22 |
| OpStore %_GLF_color %27 |
| OpReturn |
| OpFunctionEnd |
| |
| |
| [test] |
| draw rect -1 -1 2 2 |
| probe all rgba 1 0 0 1 |