115 lines
2.6 KiB
Plaintext
115 lines
2.6 KiB
Plaintext
#!amber
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#
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# Copyright 2020 The Khronos Group Inc.
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# Copyright 2020 Valve Corporation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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DEVICE_FEATURE geometryShader
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DEVICE_FEATURE tessellationShader
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SHADER vertex vert GLSL
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#version 450
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layout (location=0) in vec4 in_pos;
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void main(void)
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{
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gl_Position = in_pos;
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}
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END
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SHADER tessellation_control tesc GLSL
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#version 450
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layout (vertices = 3) out;
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void main(void)
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{
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gl_TessLevelInner[0] = 1.0;
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gl_TessLevelInner[1] = 1.0;
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gl_TessLevelOuter[0] = 1.0;
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gl_TessLevelOuter[1] = 1.0;
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gl_TessLevelOuter[2] = 1.0;
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gl_TessLevelOuter[3] = 1.0;
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gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
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}
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END
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SHADER tessellation_evaluation tese GLSL
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#version 450
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layout (triangles, fractional_odd_spacing, cw) in;
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void main(void)
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{
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gl_Position = (gl_TessCoord.x * gl_in[0].gl_Position) +
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(gl_TessCoord.y * gl_in[1].gl_Position) +
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(gl_TessCoord.z * gl_in[2].gl_Position);
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}
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END
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SHADER fragment frag GLSL
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#version 450
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layout (location=0) out vec4 out_color;
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void main(void)
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{
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vec4 primitive_color;
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switch (gl_PrimitiveID) {
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case 0:
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case 1:
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primitive_color = vec4(0, 0, 1, 1);
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break;
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case 2:
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case 3:
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primitive_color = vec4(1, 0, 1, 1);
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break;
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default:
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primitive_color = vec4(0, 0, 0, 1);
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break;
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}
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out_color = primitive_color;
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}
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END
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BUFFER position DATA_TYPE vec4<float> DATA
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-1 -1 0 1
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1 -1 0 1
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-1 0 0 1
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-1 0 0 1
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1 -1 0 1
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1 0 0 1
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-1 0 0 1
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1 0 0 1
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-1 1 0 1
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-1 1 0 1
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1 0 0 1
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1 1 0 1
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END
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BUFFER framebuffer FORMAT B8G8R8A8_UNORM
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PIPELINE graphics graphics_pipeline
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ATTACH vert
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ATTACH tesc
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ATTACH tese
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ATTACH frag
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VERTEX_DATA position LOCATION 0
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BIND BUFFER framebuffer AS color LOCATION 0
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END
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CLEAR_COLOR graphics_pipeline 255 255 255 255
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CLEAR graphics_pipeline
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RUN graphics_pipeline DRAW_ARRAY AS PATCH_LIST START_IDX 0 COUNT 12
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EXPECT framebuffer IDX 0 0 SIZE 250 125 EQ_RGBA 0 0 255 255
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EXPECT framebuffer IDX 0 125 SIZE 250 125 EQ_RGBA 255 0 255 255
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