3 # Copyright 2021 Google LLC
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 # A test for a coverage-gap found by the GraphicsFuzz project.
20 # Short description: A fragment shader that covers specific NIR code paths
22 # The test passes because the shader always writes red.
24 SHADER vertex variant_vertex_shader PASSTHROUGH
26 # variant_fragment_shader is derived from the following GLSL:
28 # #define _int_0 _GLF_uniform_int_values[0]
29 # #define _int_1 _GLF_uniform_int_values[1]
31 # precision highp int;
32 # precision highp float;
34 # // Contents of _GLF_uniform_int_values: [0, 1]
35 # layout(set = 0, binding = 0) uniform buf0
37 # int _GLF_uniform_int_values[2];
39 # layout(location = 0) out vec4 _GLF_color;
45 # if(float(int(f)) > 100.0)
47 # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
51 # _GLF_color = vec4(_int_0);
54 SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
57 ; Generator: Khronos Glslang Reference Front End; 10
61 %1 = OpExtInstImport "GLSL.std.450"
62 OpMemoryModel Logical GLSL450
63 OpEntryPoint Fragment %4 "main" %21
64 OpExecutionMode %4 OriginUpperLeft
68 OpName %21 "_GLF_color"
70 OpMemberName %25 0 "_GLF_uniform_int_values"
72 OpDecorate %21 Location 0
73 OpDecorate %24 ArrayStride 16
74 OpMemberDecorate %25 0 Offset 0
76 OpDecorate %27 DescriptorSet 0
77 OpDecorate %27 Binding 0
79 %3 = OpTypeFunction %2
81 %7 = OpTypePointer Function %6
82 %9 = OpConstant %6 142.699997
84 %14 = OpConstant %6 100
86 %19 = OpTypeVector %6 4
87 %20 = OpTypePointer Output %19
88 %21 = OpVariable %20 Output
90 %23 = OpConstant %22 2
91 %24 = OpTypeArray %11 %23
92 %25 = OpTypeStruct %24
93 %26 = OpTypePointer Uniform %25
94 %27 = OpVariable %26 Uniform
95 %28 = OpConstant %11 0
96 %29 = OpConstant %11 1
97 %30 = OpTypePointer Uniform %11
98 %4 = OpFunction %2 None %3
100 %8 = OpVariable %7 Function
103 %12 = OpConvertFToS %11 %10
104 %13 = OpConvertSToF %6 %12
105 %16 = OpFOrdGreaterThan %15 %13 %14
106 OpSelectionMerge %18 None
107 OpBranchConditional %16 %17 %44
109 %31 = OpAccessChain %30 %27 %28 %29
111 %33 = OpConvertSToF %6 %32
112 %34 = OpAccessChain %30 %27 %28 %28
114 %36 = OpConvertSToF %6 %35
115 %37 = OpAccessChain %30 %27 %28 %28
117 %39 = OpConvertSToF %6 %38
118 %40 = OpAccessChain %30 %27 %28 %29
120 %42 = OpConvertSToF %6 %41
121 %43 = OpCompositeConstruct %19 %33 %36 %39 %42
125 %45 = OpAccessChain %30 %27 %28 %28
127 %47 = OpConvertSToF %6 %46
128 %48 = OpCompositeConstruct %19 %47 %47 %47 %47
136 # uniforms for variant
138 # _GLF_uniform_int_values
139 BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
143 BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
145 PIPELINE graphics variant_pipeline
146 ATTACH variant_vertex_shader
147 ATTACH variant_fragment_shader
148 FRAMEBUFFER_SIZE 256 256
149 BIND BUFFER variant_framebuffer AS color LOCATION 0
150 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
152 CLEAR_COLOR variant_pipeline 0 0 0 255
154 CLEAR variant_pipeline
155 RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
157 EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255