external/vulkancts/data/vulkan/amber/draw/depth_bias/depth_bias_patch_list_tri_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:            Patch List
# Polygon Mode:           Fill
# TES primitive ordering: trianges, cw
# Result:                 Green rectangle should be on top.

DEVICE_FEATURE tessellationShader

SHADER vertex vert GLSL
#version 450

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

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

SHADER tessellation_control tesc GLSL
#version 450

layout (location = 0) in vec4 inColor[];
layout (location = 0) patch out vec4 tcColor;
layout (vertices = 3) out;

void main(void)
{
  float tessLevel = 2.0;

  gl_TessLevelInner[0] = tessLevel;
  gl_TessLevelInner[1] = tessLevel;
  gl_TessLevelOuter[0] = 1.0;
  gl_TessLevelOuter[1] = 1.0;
  gl_TessLevelOuter[2] = 1.0;

  gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
  tcColor = inColor[gl_InvocationID];
}
END

SHADER tessellation_evaluation tese GLSL
#version 450

layout (triangles, equal_spacing, cw) in;
layout (location = 0) patch in vec4 patch_color;
layout (location = 0) out vec4 tes_color;

void main(void)
{
  gl_Position = (gl_TessCoord.x * gl_in[0].gl_Position) +
                (gl_TessCoord.y * gl_in[1].gl_Position) +
                (gl_TessCoord.z * gl_in[2].gl_Position);

  tes_color = patch_color;
}
END

SHADER fragment frag GLSL
#version 450

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

void main(void)
{
  outColor = inColor;
}
END

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

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

PIPELINE graphics pipeline1
  ATTACH vert
  ATTACH tesc
  ATTACH tese
  ATTACH frag

  POLYGON_MODE fill
  PATCH_CONTROL_POINTS 3

  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
  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
  ATTACH tesc
  ATTACH tese
  ATTACH frag

  POLYGON_MODE fill
  PATCH_CONTROL_POINTS 3

  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
  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 PATCH_LIST START_IDX 0 COUNT 6
RUN pipeline2 DRAW_ARRAY AS PATCH_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