• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1#!amber
2
3# Copyright 2020 Google LLC
4#
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
8#
9#     http://www.apache.org/licenses/LICENSE-2.0
10#
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.
16
17
18# A test for a coverage-gap found by the GraphicsFuzz project.
19
20# Short description: A fragment shader that covers a specific const folding path
21
22# The test passes because the shader always writes red.
23
24SHADER vertex variant_vertex_shader PASSTHROUGH
25
26# variant_fragment_shader is derived from the following GLSL:
27# #version 310 es
28# #define _int_0 _GLF_uniform_int_values[0]
29# #define _int_1 _GLF_uniform_int_values[1]
30#
31# precision highp float;
32# precision highp int;
33#
34# // Contents of _GLF_uniform_int_values: [0, 1]
35# layout(set = 0, binding = 0) uniform buf0
36# {
37#     int _GLF_uniform_int_values[2];
38# };
39#
40# layout(location = 0) out vec4 _GLF_color;
41#
42# void main()
43# {
44#     if (mod(1.0, 1.0) <= 0.01)
45#     {
46#         _GLF_color = vec4(1, _int_0, _int_0, _int_1);
47#     }
48#     else
49#     {
50#         _GLF_color = vec4(_int_0);
51#     }
52# }
53SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
54; SPIR-V
55; Version: 1.0
56; Generator: Khronos Glslang Reference Front End; 8
57; Bound: 42
58; Schema: 0
59               OpCapability Shader
60          %1 = OpExtInstImport "GLSL.std.450"
61               OpMemoryModel Logical GLSL450
62               OpEntryPoint Fragment %4 "main" %16
63               OpExecutionMode %4 OriginUpperLeft
64               OpSource ESSL 310
65               OpName %4 "main"
66               OpName %16 "_GLF_color"
67               OpName %21 "buf0"
68               OpMemberName %21 0 "_GLF_uniform_int_values"
69               OpName %23 ""
70               OpDecorate %16 Location 0
71               OpDecorate %20 ArrayStride 16
72               OpMemberDecorate %21 0 Offset 0
73               OpDecorate %21 Block
74               OpDecorate %23 DescriptorSet 0
75               OpDecorate %23 Binding 0
76          %2 = OpTypeVoid
77          %3 = OpTypeFunction %2
78          %6 = OpTypeFloat 32
79          %7 = OpConstant %6 1
80          %9 = OpConstant %6 0.00999999978
81         %10 = OpTypeBool
82         %14 = OpTypeVector %6 4
83         %15 = OpTypePointer Output %14
84         %16 = OpVariable %15 Output
85         %17 = OpTypeInt 32 1
86         %18 = OpTypeInt 32 0
87         %19 = OpConstant %18 2
88         %20 = OpTypeArray %17 %19
89         %21 = OpTypeStruct %20
90         %22 = OpTypePointer Uniform %21
91         %23 = OpVariable %22 Uniform
92         %24 = OpConstant %17 0
93         %25 = OpTypePointer Uniform %17
94         %32 = OpConstant %17 1
95          %4 = OpFunction %2 None %3
96          %5 = OpLabel
97          %8 = OpFMod %6 %7 %7
98         %11 = OpFOrdLessThanEqual %10 %8 %9
99               OpSelectionMerge %13 None
100               OpBranchConditional %11 %12 %37
101         %12 = OpLabel
102         %26 = OpAccessChain %25 %23 %24 %24
103         %27 = OpLoad %17 %26
104         %28 = OpConvertSToF %6 %27
105         %29 = OpAccessChain %25 %23 %24 %24
106         %30 = OpLoad %17 %29
107         %31 = OpConvertSToF %6 %30
108         %33 = OpAccessChain %25 %23 %24 %32
109         %34 = OpLoad %17 %33
110         %35 = OpConvertSToF %6 %34
111         %36 = OpCompositeConstruct %14 %7 %28 %31 %35
112               OpStore %16 %36
113               OpBranch %13
114         %37 = OpLabel
115         %38 = OpAccessChain %25 %23 %24 %24
116         %39 = OpLoad %17 %38
117         %40 = OpConvertSToF %6 %39
118         %41 = OpCompositeConstruct %14 %40 %40 %40 %40
119               OpStore %16 %41
120               OpBranch %13
121         %13 = OpLabel
122               OpReturn
123               OpFunctionEnd
124END
125
126# uniforms for variant
127
128# _GLF_uniform_int_values
129BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
130 0 1
131END
132
133BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
134
135PIPELINE graphics variant_pipeline
136  ATTACH variant_vertex_shader
137  ATTACH variant_fragment_shader
138  FRAMEBUFFER_SIZE 256 256
139  BIND BUFFER variant_framebuffer AS color LOCATION 0
140  BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
141END
142CLEAR_COLOR variant_pipeline 0 0 0 255
143
144CLEAR variant_pipeline
145RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
146
147EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
148