148 lines
4.6 KiB
Plaintext
148 lines
4.6 KiB
Plaintext
#!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 instruction simplification code path
|
|
|
|
# The test passes because the 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;
|
|
#
|
|
# layout(location = 0) out vec4 _GLF_color;
|
|
# layout(set = 0, binding = 0) uniform buf0
|
|
# {
|
|
# float one;
|
|
# };
|
|
#
|
|
# void main()
|
|
# {
|
|
# // Always selects 1.0.
|
|
# float f = mix(1.0, 0.0, gl_FragCoord.y < 0.0);
|
|
#
|
|
# if(determinant(mat3(f)) == one)
|
|
# _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: 46
|
|
; Schema: 0
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main" %13 %42
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
OpName %4 "main"
|
|
OpName %8 "f"
|
|
OpName %13 "gl_FragCoord"
|
|
OpName %30 "buf0"
|
|
OpMemberName %30 0 "one"
|
|
OpName %32 ""
|
|
OpName %42 "_GLF_color"
|
|
OpDecorate %13 BuiltIn FragCoord
|
|
OpMemberDecorate %30 0 Offset 0
|
|
OpDecorate %30 Block
|
|
OpDecorate %32 DescriptorSet 0
|
|
OpDecorate %32 Binding 0
|
|
OpDecorate %42 Location 0
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeFloat 32
|
|
%7 = OpTypePointer Function %6
|
|
%9 = OpConstant %6 1
|
|
%10 = OpConstant %6 0
|
|
%11 = OpTypeVector %6 4
|
|
%12 = OpTypePointer Input %11
|
|
%13 = OpVariable %12 Input
|
|
%14 = OpTypeInt 32 0
|
|
%15 = OpConstant %14 1
|
|
%16 = OpTypePointer Input %6
|
|
%19 = OpTypeBool
|
|
%23 = OpTypeVector %6 3
|
|
%24 = OpTypeMatrix %23 3
|
|
%30 = OpTypeStruct %6
|
|
%31 = OpTypePointer Uniform %30
|
|
%32 = OpVariable %31 Uniform
|
|
%33 = OpTypeInt 32 1
|
|
%34 = OpConstant %33 0
|
|
%35 = OpTypePointer Uniform %6
|
|
%41 = OpTypePointer Output %11
|
|
%42 = OpVariable %41 Output
|
|
%43 = OpConstantComposite %11 %9 %10 %10 %9
|
|
%45 = OpConstantComposite %11 %10 %10 %10 %10
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%8 = OpVariable %7 Function
|
|
%17 = OpAccessChain %16 %13 %15
|
|
%18 = OpLoad %6 %17
|
|
%20 = OpFOrdLessThan %19 %18 %10
|
|
%21 = OpSelect %6 %20 %10 %9
|
|
OpStore %8 %21
|
|
%22 = OpLoad %6 %8
|
|
%25 = OpCompositeConstruct %23 %22 %10 %10
|
|
%26 = OpCompositeConstruct %23 %10 %22 %10
|
|
%27 = OpCompositeConstruct %23 %10 %10 %22
|
|
%28 = OpCompositeConstruct %24 %25 %26 %27
|
|
%29 = OpExtInst %6 %1 Determinant %28
|
|
%36 = OpAccessChain %35 %32 %34
|
|
%37 = OpLoad %6 %36
|
|
%38 = OpFOrdEqual %19 %29 %37
|
|
OpSelectionMerge %40 None
|
|
OpBranchConditional %38 %39 %44
|
|
%39 = OpLabel
|
|
OpStore %42 %43
|
|
OpBranch %40
|
|
%44 = OpLabel
|
|
OpStore %42 %45
|
|
OpBranch %40
|
|
%40 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
END
|
|
|
|
# uniforms for variant
|
|
|
|
# one
|
|
BUFFER variant_one DATA_TYPE float DATA
|
|
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_one 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
|