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 NIR 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# #define _int_1 _GLF_uniform_int_values[0]
29# #define _int_0 _GLF_uniform_int_values[1]
30#
31# precision highp int;
32# precision highp float;
33#
34# // Contents of _GLF_uniform_int_values: [1, 0]
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#     mat2 m = transpose(transpose(mat2x2(_int_1)));
45#
46#     if(m == mat2x2(_int_1))
47#     {
48#         _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
49#     }
50#     else
51#     {
52#         _GLF_color = vec4(_int_0);
53#     }
54# }
55SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
56; SPIR-V
57; Version: 1.0
58; Generator: Khronos Glslang Reference Front End; 10
59; Bound: 72
60; Schema: 0
61               OpCapability Shader
62          %1 = OpExtInstImport "GLSL.std.450"
63               OpMemoryModel Logical GLSL450
64               OpEntryPoint Fragment %4 "main" %52
65               OpExecutionMode %4 OriginUpperLeft
66               OpSource ESSL 320
67               OpName %4 "main"
68               OpName %10 "m"
69               OpName %15 "buf0"
70               OpMemberName %15 0 "_GLF_uniform_int_values"
71               OpName %17 ""
72               OpName %52 "_GLF_color"
73               OpDecorate %14 ArrayStride 16
74               OpMemberDecorate %15 0 Offset 0
75               OpDecorate %15 Block
76               OpDecorate %17 DescriptorSet 0
77               OpDecorate %17 Binding 0
78               OpDecorate %52 Location 0
79          %2 = OpTypeVoid
80          %3 = OpTypeFunction %2
81          %6 = OpTypeFloat 32
82          %7 = OpTypeVector %6 2
83          %8 = OpTypeMatrix %7 2
84          %9 = OpTypePointer Function %8
85         %11 = OpTypeInt 32 1
86         %12 = OpTypeInt 32 0
87         %13 = OpConstant %12 2
88         %14 = OpTypeArray %11 %13
89         %15 = OpTypeStruct %14
90         %16 = OpTypePointer Uniform %15
91         %17 = OpVariable %16 Uniform
92         %18 = OpConstant %11 0
93         %19 = OpTypePointer Uniform %11
94         %23 = OpConstant %6 1
95         %24 = OpConstant %6 0
96         %37 = OpTypeBool
97         %40 = OpTypeVector %37 2
98         %50 = OpTypeVector %6 4
99         %51 = OpTypePointer Output %50
100         %52 = OpVariable %51 Output
101         %56 = OpConstant %11 1
102          %4 = OpFunction %2 None %3
103          %5 = OpLabel
104         %10 = OpVariable %9 Function
105         %20 = OpAccessChain %19 %17 %18 %18
106         %21 = OpLoad %11 %20
107         %22 = OpConvertSToF %6 %21
108         %25 = OpCompositeConstruct %7 %22 %24
109         %26 = OpCompositeConstruct %7 %24 %22
110         %27 = OpCompositeConstruct %8 %25 %26
111         %28 = OpTranspose %8 %27
112         %29 = OpTranspose %8 %28
113               OpStore %10 %29
114         %30 = OpLoad %8 %10
115         %31 = OpAccessChain %19 %17 %18 %18
116         %32 = OpLoad %11 %31
117         %33 = OpConvertSToF %6 %32
118         %34 = OpCompositeConstruct %7 %33 %24
119         %35 = OpCompositeConstruct %7 %24 %33
120         %36 = OpCompositeConstruct %8 %34 %35
121         %38 = OpCompositeExtract %7 %30 0
122         %39 = OpCompositeExtract %7 %36 0
123         %41 = OpFOrdEqual %40 %38 %39
124         %42 = OpAll %37 %41
125         %43 = OpCompositeExtract %7 %30 1
126         %44 = OpCompositeExtract %7 %36 1
127         %45 = OpFOrdEqual %40 %43 %44
128         %46 = OpAll %37 %45
129         %47 = OpLogicalAnd %37 %42 %46
130               OpSelectionMerge %49 None
131               OpBranchConditional %47 %48 %67
132         %48 = OpLabel
133         %53 = OpAccessChain %19 %17 %18 %18
134         %54 = OpLoad %11 %53
135         %55 = OpConvertSToF %6 %54
136         %57 = OpAccessChain %19 %17 %18 %56
137         %58 = OpLoad %11 %57
138         %59 = OpConvertSToF %6 %58
139         %60 = OpAccessChain %19 %17 %18 %56
140         %61 = OpLoad %11 %60
141         %62 = OpConvertSToF %6 %61
142         %63 = OpAccessChain %19 %17 %18 %18
143         %64 = OpLoad %11 %63
144         %65 = OpConvertSToF %6 %64
145         %66 = OpCompositeConstruct %50 %55 %59 %62 %65
146               OpStore %52 %66
147               OpBranch %49
148         %67 = OpLabel
149         %68 = OpAccessChain %19 %17 %18 %56
150         %69 = OpLoad %11 %68
151         %70 = OpConvertSToF %6 %69
152         %71 = OpCompositeConstruct %50 %70 %70 %70 %70
153               OpStore %52 %71
154               OpBranch %49
155         %49 = OpLabel
156               OpReturn
157               OpFunctionEnd
158END
159
160# uniforms for variant
161
162# _GLF_uniform_int_values
163BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
164 1 0
165END
166
167BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
168
169PIPELINE graphics variant_pipeline
170  ATTACH variant_vertex_shader
171  ATTACH variant_fragment_shader
172  FRAMEBUFFER_SIZE 256 256
173  BIND BUFFER variant_framebuffer AS color LOCATION 0
174  BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
175END
176CLEAR_COLOR variant_pipeline 0 0 0 255
177
178CLEAR variant_pipeline
179RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
180
181EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
182