1#!amber
2
3# Copyright 2021 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 specific SPIR-V reader code paths
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 320 es
28#
29# #define _int_0 _GLF_uniform_int_values[0]
30# #define _int_1 _GLF_uniform_int_values[1]
31# #define _float_1_0 _GLF_uniform_float_values[0]
32#
33# precision highp int;
34# precision highp float;
35#
36# // Contents of _GLF_uniform_int_values: [0, 1]
37# layout(set = 0, binding = 0) uniform buf0
38# {
39#     int _GLF_uniform_int_values[2];
40# };
41# // Contents of _GLF_uniform_float_values: 1.0
42# layout(set = 0, binding = 1) uniform buf1
43# {
44#     float _GLF_uniform_float_values[1];
45# };
46# layout(location = 0) out vec4 _GLF_color;
47#
48# // Contents of m: [1.0, 5.0, 3.0, 7.0, 9.0, 6.0, 7.0, 8.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0]
49# layout(push_constant) uniform buf_push
50# {
51#     mat4 m;
52# };
53#
54# void main()
55# {
56#     // Always true.
57#     if(m[_int_0][_int_0] == _float_1_0)
58#     {
59#         _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
60#     }
61#     else
62#     {
63#         _GLF_color = vec4(_int_0);
64#     }
65# }
66SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
67; SPIR-V
68; Version: 1.0
69; Generator: Khronos Glslang Reference Front End; 10
70; Bound: 61
71; Schema: 0
72               OpCapability Shader
73          %1 = OpExtInstImport "GLSL.std.450"
74               OpMemoryModel Logical GLSL450
75               OpEntryPoint Fragment %4 "main" %41
76               OpExecutionMode %4 OriginUpperLeft
77               OpSource ESSL 320
78               OpName %4 "main"
79               OpName %9 "buf_push"
80               OpMemberName %9 0 "m"
81               OpName %11 ""
82               OpName %17 "buf0"
83               OpMemberName %17 0 "_GLF_uniform_int_values"
84               OpName %19 ""
85               OpName %30 "buf1"
86               OpMemberName %30 0 "_GLF_uniform_float_values"
87               OpName %32 ""
88               OpName %41 "_GLF_color"
89               OpMemberDecorate %9 0 ColMajor
90               OpMemberDecorate %9 0 Offset 0
91               OpMemberDecorate %9 0 MatrixStride 16
92               OpDecorate %9 Block
93               OpDecorate %16 ArrayStride 16
94               OpMemberDecorate %17 0 Offset 0
95               OpDecorate %17 Block
96               OpDecorate %19 DescriptorSet 0
97               OpDecorate %19 Binding 0
98               OpDecorate %29 ArrayStride 16
99               OpMemberDecorate %30 0 Offset 0
100               OpDecorate %30 Block
101               OpDecorate %32 DescriptorSet 0
102               OpDecorate %32 Binding 1
103               OpDecorate %41 Location 0
104          %2 = OpTypeVoid
105          %3 = OpTypeFunction %2
106          %6 = OpTypeFloat 32
107          %7 = OpTypeVector %6 4
108          %8 = OpTypeMatrix %7 4
109          %9 = OpTypeStruct %8
110         %10 = OpTypePointer PushConstant %9
111         %11 = OpVariable %10 PushConstant
112         %12 = OpTypeInt 32 1
113         %13 = OpConstant %12 0
114         %14 = OpTypeInt 32 0
115         %15 = OpConstant %14 2
116         %16 = OpTypeArray %12 %15
117         %17 = OpTypeStruct %16
118         %18 = OpTypePointer Uniform %17
119         %19 = OpVariable %18 Uniform
120         %20 = OpTypePointer Uniform %12
121         %25 = OpTypePointer PushConstant %6
122         %28 = OpConstant %14 1
123         %29 = OpTypeArray %6 %28
124         %30 = OpTypeStruct %29
125         %31 = OpTypePointer Uniform %30
126         %32 = OpVariable %31 Uniform
127         %33 = OpTypePointer Uniform %6
128         %36 = OpTypeBool
129         %40 = OpTypePointer Output %7
130         %41 = OpVariable %40 Output
131         %42 = OpConstant %12 1
132          %4 = OpFunction %2 None %3
133          %5 = OpLabel
134         %21 = OpAccessChain %20 %19 %13 %13
135         %22 = OpLoad %12 %21
136         %23 = OpAccessChain %20 %19 %13 %13
137         %24 = OpLoad %12 %23
138         %26 = OpAccessChain %25 %11 %13 %22 %24
139         %27 = OpLoad %6 %26
140         %34 = OpAccessChain %33 %32 %13 %13
141         %35 = OpLoad %6 %34
142         %37 = OpFOrdEqual %36 %27 %35
143               OpSelectionMerge %39 None
144               OpBranchConditional %37 %38 %56
145         %38 = OpLabel
146         %43 = OpAccessChain %20 %19 %13 %42
147         %44 = OpLoad %12 %43
148         %45 = OpConvertSToF %6 %44
149         %46 = OpAccessChain %20 %19 %13 %13
150         %47 = OpLoad %12 %46
151         %48 = OpConvertSToF %6 %47
152         %49 = OpAccessChain %20 %19 %13 %13
153         %50 = OpLoad %12 %49
154         %51 = OpConvertSToF %6 %50
155         %52 = OpAccessChain %20 %19 %13 %42
156         %53 = OpLoad %12 %52
157         %54 = OpConvertSToF %6 %53
158         %55 = OpCompositeConstruct %7 %45 %48 %51 %54
159               OpStore %41 %55
160               OpBranch %39
161         %56 = OpLabel
162         %57 = OpAccessChain %20 %19 %13 %13
163         %58 = OpLoad %12 %57
164         %59 = OpConvertSToF %6 %58
165         %60 = OpCompositeConstruct %7 %59 %59 %59 %59
166               OpStore %41 %60
167               OpBranch %39
168         %39 = OpLabel
169               OpReturn
170               OpFunctionEnd
171END
172
173# uniforms for variant
174
175# m
176BUFFER variant_m DATA_TYPE mat4x4<float>[] STD140 DATA
177 1.0 5.0 3.0 7.0 9.0 6.0 7.0 8.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
178END
179# _GLF_uniform_float_values
180BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
181 1.0
182END
183# _GLF_uniform_int_values
184BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
185 0 1
186END
187
188BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
189
190PIPELINE graphics variant_pipeline
191  ATTACH variant_vertex_shader
192  ATTACH variant_fragment_shader
193  FRAMEBUFFER_SIZE 256 256
194  BIND BUFFER variant_framebuffer AS color LOCATION 0
195  BIND BUFFER variant_m AS push_constant
196  BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1
197  BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
198END
199CLEAR_COLOR variant_pipeline 0 0 0 255
200
201CLEAR variant_pipeline
202RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
203
204EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
205