blob: 49be58824817c531967d6ebcb4729fd9ee8c7f84 [file] [log] [blame]
#!amber
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# A test for a coverage-gap found by GraphicsFuzz.
# Short description: A fragment shader that covers a specific machine value type code path
# The test passes because shader always writes red.
SHADER vertex variant_vertex_shader PASSTHROUGH
# variant_fragment_shader is derived from the following GLSL:
# #version 310 es
# precision highp float;
# precision highp int;
#
# layout(location = 0) out vec4 _GLF_color;
#
# layout(set = 0, binding = 0) uniform buf0
# {
# vec2 injectionSwitch;
# };
#
# void main()
# {
# int a = 0;
# for(int i = 0; i < int(injectionSwitch.y); i++)
# {
# if (a > 0)
# {
# break;
# }
# // a becomes 1.
# a = ((int(injectionSwitch.y) * 2) / 2);
# }
#
# if (a == 1) // Always true.
# _GLF_color = vec4(1, 0, 0, 1);
# else
# _GLF_color = vec4(0);
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 8
; Bound: 56
; Schema: 0
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %50
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %8 "a"
OpName %10 "i"
OpName %19 "buf0"
OpMemberName %19 0 "injectionSwitch"
OpName %21 ""
OpName %50 "_GLF_color"
OpMemberDecorate %19 0 Offset 0
OpDecorate %19 Block
OpDecorate %21 DescriptorSet 0
OpDecorate %21 Binding 0
OpDecorate %50 Location 0
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 0
%17 = OpTypeFloat 32
%18 = OpTypeVector %17 2
%19 = OpTypeStruct %18
%20 = OpTypePointer Uniform %19
%21 = OpVariable %20 Uniform
%22 = OpTypeInt 32 0
%23 = OpConstant %22 1
%24 = OpTypePointer Uniform %17
%28 = OpTypeBool
%38 = OpConstant %6 2
%42 = OpConstant %6 1
%48 = OpTypeVector %17 4
%49 = OpTypePointer Output %48
%50 = OpVariable %49 Output
%51 = OpConstant %17 1
%52 = OpConstant %17 0
%53 = OpConstantComposite %48 %51 %52 %52 %51
%55 = OpConstantComposite %48 %52 %52 %52 %52
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
OpStore %8 %9
OpStore %10 %9
OpBranch %11
%11 = OpLabel
OpLoopMerge %13 %14 None
OpBranch %15
%15 = OpLabel
%16 = OpLoad %6 %10
%25 = OpAccessChain %24 %21 %9 %23
%26 = OpLoad %17 %25
%27 = OpConvertFToS %6 %26
%29 = OpSLessThan %28 %16 %27
OpBranchConditional %29 %12 %13
%12 = OpLabel
%30 = OpLoad %6 %8
%31 = OpSGreaterThan %28 %30 %9
OpSelectionMerge %33 None
OpBranchConditional %31 %32 %33
%32 = OpLabel
OpBranch %13
%33 = OpLabel
%35 = OpAccessChain %24 %21 %9 %23
%36 = OpLoad %17 %35
%37 = OpConvertFToS %6 %36
%39 = OpIMul %6 %37 %38
%40 = OpSDiv %6 %39 %38
OpStore %8 %40
OpBranch %14
%14 = OpLabel
%41 = OpLoad %6 %10
%43 = OpIAdd %6 %41 %42
OpStore %10 %43
OpBranch %11
%13 = OpLabel
%44 = OpLoad %6 %8
%45 = OpIEqual %28 %44 %42
OpSelectionMerge %47 None
OpBranchConditional %45 %46 %54
%46 = OpLabel
OpStore %50 %53
OpBranch %47
%54 = OpLabel
OpStore %50 %55
OpBranch %47
%47 = OpLabel
OpReturn
OpFunctionEnd
END
# uniforms for variant
# injectionSwitch
BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
0.0 1.0
END
BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
PIPELINE graphics variant_pipeline
ATTACH variant_vertex_shader
ATTACH variant_fragment_shader
FRAMEBUFFER_SIZE 256 256
BIND BUFFER variant_framebuffer AS color LOCATION 0
BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 0
END
CLEAR_COLOR variant_pipeline 0 0 0 255
CLEAR variant_pipeline
RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255