#!amber
# Copyright 2019 The Amber Authors.
#
# 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
#
#     https://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.

SHADER vertex vert_shader PASSTHROUGH
SHADER fragment frag_shader GLSL
#version 430

layout(location = 0) out vec4 color_out;
layout(std140, binding = 0) readonly buffer Data {
  float a;
  float b;
} data;

void main() {
  color_out = vec4(data.a/255, data.b/255, data.a/255, data.b/255);
}
END

STRUCT my_data
  float a
  float b
END

BUFFER data DATA_TYPE my_data STD140 DATA
  1  # a
220  # b
END

BUFFER framebuffer FORMAT B8G8R8A8_UNORM

PIPELINE graphics my_pipeline
  ATTACH vert_shader
  ATTACH frag_shader

  BIND BUFFER framebuffer AS color LOCATION 0
  BIND BUFFER data AS storage DESCRIPTOR_SET 0 BINDING 0
END

RUN my_pipeline DRAW_RECT POS 0 0 SIZE 250 250
EXPECT framebuffer IDX 0 0 SIZE 250 250 EQ_RGBA 1 220 1 220