blob: 095dc264b53c53865266700a8bc42cded0c3effb [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 bug found by the GraphicsFuzz project.
# Short description: A fragment shader with vec2 in modulus fraction function
# The test passes because the shader always writes the color red.
SHADER vertex variant_vertex_shader PASSTHROUGH
# variant_fragment_shader is derived from the following GLSL:
# #version 320 es
# precision highp float;
#
# precision highp int;
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
# vec2 uv = vec2(1.0, 1.0);
# uv.x = (modf(1.0, uv.y));
# // uv.y == 1.0, uv.x == 0.0
# if (uv.y > 0.0 && uv.x < 1.0)
# {
# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
# }
# else
# {
# _GLF_color = vec4(1.0);
# }
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 10
; Bound: 38
; Schema: 0
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %34
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 320
OpName %4 "main"
OpName %9 "uv"
OpName %34 "_GLF_color"
OpDecorate %34 Location 0
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 2
%8 = OpTypePointer Function %7
%10 = OpConstant %6 1
%11 = OpConstantComposite %7 %10 %10
%12 = OpTypeInt 32 0
%13 = OpConstant %12 1
%14 = OpTypePointer Function %6
%17 = OpConstant %12 0
%19 = OpTypeBool
%22 = OpConstant %6 0
%32 = OpTypeVector %6 4
%33 = OpTypePointer Output %32
%34 = OpVariable %33 Output
%35 = OpConstantComposite %32 %10 %22 %22 %10
%37 = OpConstantComposite %32 %10 %10 %10 %10
%4 = OpFunction %2 None %3
%5 = OpLabel
%9 = OpVariable %8 Function
OpStore %9 %11
%15 = OpAccessChain %14 %9 %13
%16 = OpExtInst %6 %1 Modf %10 %15
%18 = OpAccessChain %14 %9 %17
OpStore %18 %16
%20 = OpAccessChain %14 %9 %13
%21 = OpLoad %6 %20
%23 = OpFOrdGreaterThan %19 %21 %22
OpSelectionMerge %25 None
OpBranchConditional %23 %24 %25
%24 = OpLabel
%26 = OpAccessChain %14 %9 %17
%27 = OpLoad %6 %26
%28 = OpFOrdLessThan %19 %27 %10
OpBranch %25
%25 = OpLabel
%29 = OpPhi %19 %23 %5 %28 %24
OpSelectionMerge %31 None
OpBranchConditional %29 %30 %36
%30 = OpLabel
OpStore %34 %35
OpBranch %31
%36 = OpLabel
OpStore %34 %37
OpBranch %31
%31 = OpLabel
OpReturn
OpFunctionEnd
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
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