external/vulkancts/data/vulkan/amber/draw/depth_bias/depth_bias_triangle_list_fill.amber

#!amber
# Copyright 2021 Google LLC.
# Copyright 2021 The Khronos Group Inc.
#
# 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.
#
# Red rect. fragDepth:    0.17
# Green rect. fragDepth:  0.18
# Depth color format:     D16_UNORM
# Depth bias:             -0.01068115234375 (-700.0 / 2^16)
# Draw method:            Triangle List
# Polygon Mode:           Fill
# Result:                 Green rectangle should be on top.

SHADER vertex vert_shader GLSL
#version 450

layout (location = 0) in vec3 inPosition;
layout (location = 1) in vec4 inColor;

layout (location = 0) out vec4 outColor;

void main()
{
  gl_Position = vec4(inPosition, 1.0);
  outColor = inColor;
}
END

SHADER fragment frag_shader GLSL
#version 450

layout (location = 0) in vec4 inColor;
layout (location = 0) out vec4 outColor;

void main()
{
  outColor = inColor;
}
END

BUFFER framebuffer FORMAT R8G8B8A8_UNORM
IMAGE verifyImage FORMAT R8G8B8A8_UNORM DIM_2D WIDTH 100 HEIGHT 100 FILL 0
BUFFER depth_buf FORMAT D16_UNORM

BUFFER vertexPositionA DATA_TYPE vec3<float> DATA
-0.50 -0.50  0.17
 0.50 -0.50  0.17
 0.50  0.50  0.17
 0.50  0.50  0.17
-0.50  0.50  0.17
-0.50 -0.50  0.17
END

BUFFER vertexPositionB DATA_TYPE vec3<float> DATA
-0.50 -0.50  0.18
 0.50 -0.50  0.18
 0.50  0.50  0.18
 0.50  0.50  0.18
-0.50  0.50  0.18
-0.50 -0.50  0.18
END

BUFFER vertexColorA DATA_TYPE vec4<float> DATA
1.0 0.0 0.0 1.0
1.0 0.0 0.0 1.0
1.0 0.0 0.0 1.0
1.0 0.0 0.0 1.0
1.0 0.0 0.0 1.0
1.0 0.0 0.0 1.0
END

BUFFER vertexColorB DATA_TYPE vec4<float> DATA
0.0 1.0 0.0 1.0
0.0 1.0 0.0 1.0
0.0 1.0 0.0 1.0
0.0 1.0 0.0 1.0
0.0 1.0 0.0 1.0
0.0 1.0 0.0 1.0
END

PIPELINE graphics pipeline1
  ATTACH vert_shader
  ATTACH frag_shader

  POLYGON_MODE fill

  DEPTH
    TEST on
    WRITE on
    COMPARE_OP less
    CLAMP off
    BOUNDS min 0.0 max 1.0
    BIAS constant 0.0 clamp 0.0 slope 0.0
  END

  FRAMEBUFFER_SIZE 100 100
  VIEWPORT 0.0 0.0 SIZE 100.0 100.0
  VERTEX_DATA vertexPositionA LOCATION 0
  VERTEX_DATA vertexColorA LOCATION 1
  BIND BUFFER framebuffer AS color LOCATION 0
  BIND BUFFER depth_buf AS depth_stencil
END

PIPELINE graphics pipeline2
  ATTACH vert_shader
  ATTACH frag_shader

  POLYGON_MODE fill

  DEPTH
    TEST on
    WRITE on
    COMPARE_OP less
    CLAMP off
    BOUNDS min 0.0 max 1.0
    BIAS constant -700.0 clamp 0.0 slope 0.0
  END

  FRAMEBUFFER_SIZE 100 100
  VIEWPORT 0.0 0.0 SIZE 100.0 100.0
  VERTEX_DATA vertexPositionB LOCATION 0
  VERTEX_DATA vertexColorB LOCATION 1
  BIND BUFFER framebuffer AS color LOCATION 0
  BIND BUFFER depth_buf AS depth_stencil
END

CLEAR_COLOR pipeline1 0 0 0 255
CLEAR_DEPTH pipeline1 0.3
CLEAR pipeline1

CLEAR_COLOR pipeline2 0 0 0 255

RUN pipeline1 DRAW_ARRAY AS TRIANGLE_LIST START_IDX 0 COUNT 6
RUN pipeline2 DRAW_ARRAY AS TRIANGLE_LIST START_IDX 0 COUNT 6

# ---------------- VERIFY PIPELINE ------------------
# This pipeline verifies the frame buffer contents.
# The compute shader writes color green if the value is expected,
# otherwise red.

SHADER compute comp_shader GLSL
#version 450

layout(local_size_x=10,local_size_y=10) in;
uniform layout(set=0, binding=0, rgba8) image2D resultImage;
uniform layout(set=0, binding=1, rgba8) image2D verifyImage;

void main()
{
  ivec2 uv = ivec2(gl_GlobalInvocationID.xy);
  vec4 color = imageLoad(resultImage, uv);

  if(color.r == 0.0 && color.a == 1.0) imageStore(verifyImage, uv, vec4(0.0, 1.0, 0.0, 1.0));
  else imageStore(verifyImage, uv, vec4(1.0, 0.0, 0.0, 1.0));
}
END

PIPELINE compute verify_pipeline
  ATTACH comp_shader

  FRAMEBUFFER_SIZE 100 100
  BIND BUFFER framebuffer AS storage_image DESCRIPTOR_SET 0 BINDING 0
  BIND BUFFER verifyImage AS storage_image DESCRIPTOR_SET 0 BINDING 1
END

RUN verify_pipeline 10 10 1

EXPECT verifyImage IDX 0 0 SIZE 100 100 EQ_RGBA   0 255   0 255