#!amber

# Copyright 2018 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 GraphicsFuzz.

# A fragment shader that uses struct initializers.
# Derived from the following GLSL fragment shader.
# We check that all pixels are red. The test passes because main does
# some computation and then writes red to _GLF_color.

# #version 310 es
#
# precision highp float;
# precision highp int;
#
# layout(location = 0) out vec4 _GLF_color;
#
# struct S {
#  bool b;
# };
#
# S foo()
# {
#  if(true)
#   {
#      return S(true);
#   }
#   return S(true);
# }
# void main(void)
# {
#   foo();
#   _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
# }

SHADER vertex variant_vertex_shader PASSTHROUGH

SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos SPIR-V Tools Assembler; 0
; Bound: 23
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %2 "main" %3
               OpExecutionMode %2 OriginUpperLeft
               OpSource ESSL 310
               OpName %2 "main"
               OpName %4 "S"
               OpMemberName %4 0 "b"
               OpName %5 "foo("
               OpName %3 "_GLF_color"
               OpDecorate %3 Location 0
          %6 = OpTypeVoid
          %7 = OpTypeFunction %6
          %8 = OpTypeBool
          %4 = OpTypeStruct %8
          %9 = OpTypeFunction %4
         %10 = OpConstantTrue %8
         %11 = OpConstantComposite %4 %10
         %12 = OpTypeFloat 32
         %13 = OpTypeVector %12 4
         %14 = OpTypePointer Output %13
          %3 = OpVariable %14 Output
         %15 = OpConstant %12 1
         %16 = OpConstant %12 0
         %17 = OpConstantComposite %13 %15 %16 %16 %15
          %2 = OpFunction %6 None %7
         %18 = OpLabel
         %19 = OpFunctionCall %4 %5
               OpStore %3 %17
               OpReturn
               OpFunctionEnd
          %5 = OpFunction %4 None %9
         %20 = OpLabel
               OpSelectionMerge %21 None
               OpBranchConditional %10 %22 %21
         %22 = OpLabel
               OpReturnValue %11
         %21 = OpLabel
               OpReturnValue %11
               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