• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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_0 _GLF_uniform_int_values[0]
29# #define _int_1 _GLF_uniform_int_values[1]
30#
31# precision highp int;
32# precision highp float;
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# layout(location = 0) out vec4 _GLF_color;
40#
41# void main()
42# {
43#     float f = 142.7;
44#
45#     if(float(int(f)) > 100.0)
46#     {
47#         _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
48#     }
49#     else
50#     {
51#         _GLF_color = vec4(_int_0);
52#     }
53# }
54SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
55; SPIR-V
56; Version: 1.0
57; Generator: Khronos Glslang Reference Front End; 10
58; Bound: 49
59; Schema: 0
60               OpCapability Shader
61          %1 = OpExtInstImport "GLSL.std.450"
62               OpMemoryModel Logical GLSL450
63               OpEntryPoint Fragment %4 "main" %21
64               OpExecutionMode %4 OriginUpperLeft
65               OpSource ESSL 320
66               OpName %4 "main"
67               OpName %8 "f"
68               OpName %21 "_GLF_color"
69               OpName %25 "buf0"
70               OpMemberName %25 0 "_GLF_uniform_int_values"
71               OpName %27 ""
72               OpDecorate %21 Location 0
73               OpDecorate %24 ArrayStride 16
74               OpMemberDecorate %25 0 Offset 0
75               OpDecorate %25 Block
76               OpDecorate %27 DescriptorSet 0
77               OpDecorate %27 Binding 0
78          %2 = OpTypeVoid
79          %3 = OpTypeFunction %2
80          %6 = OpTypeFloat 32
81          %7 = OpTypePointer Function %6
82          %9 = OpConstant %6 142.699997
83         %11 = OpTypeInt 32 1
84         %14 = OpConstant %6 100
85         %15 = OpTypeBool
86         %19 = OpTypeVector %6 4
87         %20 = OpTypePointer Output %19
88         %21 = OpVariable %20 Output
89         %22 = OpTypeInt 32 0
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
99          %5 = OpLabel
100          %8 = OpVariable %7 Function
101               OpStore %8 %9
102         %10 = OpLoad %6 %8
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
108         %17 = OpLabel
109         %31 = OpAccessChain %30 %27 %28 %29
110         %32 = OpLoad %11 %31
111         %33 = OpConvertSToF %6 %32
112         %34 = OpAccessChain %30 %27 %28 %28
113         %35 = OpLoad %11 %34
114         %36 = OpConvertSToF %6 %35
115         %37 = OpAccessChain %30 %27 %28 %28
116         %38 = OpLoad %11 %37
117         %39 = OpConvertSToF %6 %38
118         %40 = OpAccessChain %30 %27 %28 %29
119         %41 = OpLoad %11 %40
120         %42 = OpConvertSToF %6 %41
121         %43 = OpCompositeConstruct %19 %33 %36 %39 %42
122               OpStore %21 %43
123               OpBranch %18
124         %44 = OpLabel
125         %45 = OpAccessChain %30 %27 %28 %28
126         %46 = OpLoad %11 %45
127         %47 = OpConvertSToF %6 %46
128         %48 = OpCompositeConstruct %19 %47 %47 %47 %47
129               OpStore %21 %48
130               OpBranch %18
131         %18 = OpLabel
132               OpReturn
133               OpFunctionEnd
134END
135
136# uniforms for variant
137
138# _GLF_uniform_int_values
139BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
140 0 1
141END
142
143BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
144
145PIPELINE 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
151END
152CLEAR_COLOR variant_pipeline 0 0 0 255
153
154CLEAR variant_pipeline
155RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
156
157EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
158