#!amber

# Copyright 2019 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.

# Short description: A fragment shader with mix, uintBitsToFloat, and floor

# The test passes because the fragment shader computes a value and then writes the color 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;
#
# vec3 GLF_live6mand()
# {
#     return mix(uintBitsToFloat(uvec3(38730u, 63193u, 63173u)), floor(vec3(463.499, 4.7, 0.7)), vec3(1.0) + vec3(1.0));
# }
# void main()
# {
#     GLF_live6mand();
#     _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 7
; Bound: 33
; Schema: 0
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main" %30
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 310
               OpName %4 "main"
               OpName %9 "GLF_live6mand("
               OpName %30 "_GLF_color"
               OpDecorate %30 Location 0
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeFloat 32
          %7 = OpTypeVector %6 3
          %8 = OpTypeFunction %7
         %11 = OpTypeInt 32 0
         %12 = OpTypeVector %11 3
         %13 = OpConstant %11 38730
         %14 = OpConstant %11 63193
         %15 = OpConstant %11 63173
         %16 = OpConstantComposite %12 %13 %14 %15
         %18 = OpConstant %6 463
         %19 = OpConstant %6 4
         %20 = OpConstant %6 0
         %21 = OpConstantComposite %7 %18 %19 %20
         %22 = OpConstant %6 2
         %23 = OpConstantComposite %7 %22 %22 %22
         %28 = OpTypeVector %6 4
         %29 = OpTypePointer Output %28
         %30 = OpVariable %29 Output
         %31 = OpConstant %6 1
         %32 = OpConstantComposite %28 %31 %20 %20 %31
          %4 = OpFunction %2 None %3
          %5 = OpLabel
         %27 = OpFunctionCall %7 %9
               OpStore %30 %32
               OpReturn
               OpFunctionEnd
          %9 = OpFunction %7 None %8
         %10 = OpLabel
         %17 = OpBitcast %7 %16
         %24 = OpExtInst %7 %1 FMix %17 %21 %23
               OpReturnValue %24
               OpFunctionEnd
END

# uniforms for variant


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