#!amber
# Copyright 2020 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.

SET ENGINE_DATA fence_timeout_ms 1000000

VIRTUAL_FILE "vs.hlsl"
struct VS_OUTPUT {
  float4 pos : SV_POSITION;
  float4 color : COLOR;
};

VS_OUTPUT main(float4 pos : POSITION) {
  VS_OUTPUT vout;
  vout.pos = pos;
  vout.color = float4(25.1 / 255.0, 50.1 / 255.0, 100.1 / 255.0, 1.0);
  return vout;
}
END

VIRTUAL_FILE "fs.hlsl"
float4 main(float4 color : COLOR) : SV_TARGET {
  int r = color.r * 255;
  int g = color.g * 255;
  int b = color.b * 255;
  int a = color.a * 255;
  return color;
}
END

SHADER vertex   vtex_shader HLSL VIRTUAL_FILE "vs.hlsl"
SHADER fragment frag_shader HLSL VIRTUAL_FILE "fs.hlsl"

BUFFER position_buf DATA_TYPE R8G8_SNORM DATA
# Full frame
-128 -128
 127  127
-128  127
-128 -128
 127  127
 127 -128
END

BUFFER framebuffer FORMAT B8G8R8A8_UNORM

PIPELINE graphics pipeline
  FRAMEBUFFER_SIZE 32 32

  ATTACH vtex_shader
  SHADER_OPTIMIZATION vtex_shader
    --inline-entry-points-exhaustive
    --eliminate-dead-functions
  END

  ATTACH frag_shader
  SHADER_OPTIMIZATION frag_shader
    --inline-entry-points-exhaustive
    --eliminate-dead-functions
  END

  VERTEX_DATA position_buf LOCATION 0

  BIND BUFFER framebuffer AS color LOCATION 0
END

CLEAR pipeline

DEBUG pipeline DRAW_ARRAY AS TRIANGLE_LIST START_IDX 0 COUNT 6
    THREAD FRAGMENT_WINDOW_SPACE_POSITION 10 10
        EXPECT LOCATION "fs.hlsl" 2 "  int r = color.r * 255;"
        STEP_IN
        EXPECT LOCAL "r" EQ 25
        EXPECT LOCATION "fs.hlsl" 3 "  int g = color.g * 255;"
        STEP_IN
        EXPECT LOCAL "r" EQ 25
        EXPECT LOCAL "g" EQ 50
        EXPECT LOCATION "fs.hlsl" 4 "  int b = color.b * 255;"
        STEP_IN
        EXPECT LOCAL "r" EQ 25
        EXPECT LOCAL "g" EQ 50
        EXPECT LOCAL "b" EQ 100
        EXPECT LOCATION "fs.hlsl" 5 "  int a = color.a * 255;"
        STEP_IN
        EXPECT LOCAL "r" EQ 25
        EXPECT LOCAL "g" EQ 50
        EXPECT LOCAL "b" EQ 100
        EXPECT LOCAL "a" EQ 255
        EXPECT LOCATION "fs.hlsl" 6 "  return color;"
        CONTINUE
    END
END

EXPECT framebuffer IDX 0 0 SIZE 32 32 EQ_RGB 25 50 100