1#!amber
2# Copyright 2020 The Amber Authors.
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#     https://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16SHADER vertex vert_shader PASSTHROUGH
17SHADER fragment frag_shader GLSL
18#version 430
19layout(location = 0) out vec4 color_out;
20uniform layout(set=0, binding=0) samplerBuffer texels;
21
22void main()
23{
24    color_out = texelFetch(texels, int(gl_FragCoord.x) % 4);
25}
26END
27
28BUFFER texel_buffer DATA_TYPE R8G8B8A8_UNORM DATA
29255   0   0 255
30  0 255   0 255
31  0   0 255 255
32  0 255 255 255
33END
34
35BUFFER framebuffer FORMAT B8G8R8A8_UNORM
36
37PIPELINE graphics pipeline
38  ATTACH vert_shader
39  ATTACH frag_shader
40  BIND BUFFER texel_buffer AS uniform_texel_buffer DESCRIPTOR_SET 0 BINDING 0
41  FRAMEBUFFER_SIZE 256 256
42  BIND BUFFER framebuffer AS color LOCATION 0
43END
44
45CLEAR_COLOR pipeline 0 0 255 255
46CLEAR pipeline
47RUN pipeline DRAW_RECT POS 50 50 SIZE 100 100
48
49EXPECT framebuffer IDX 50 50 SIZE 1 100 EQ_RGBA   0   0 255 255
50EXPECT framebuffer IDX 51 50 SIZE 1 100 EQ_RGBA   0 255 255 255
51EXPECT framebuffer IDX 52 50 SIZE 1 100 EQ_RGBA 255   0   0 255
52EXPECT framebuffer IDX 53 50 SIZE 1 100 EQ_RGBA   0 255   0 255
53EXPECT framebuffer IDX 54 50 SIZE 1 100 EQ_RGBA   0   0 255 255
54EXPECT framebuffer IDX 55 50 SIZE 1 100 EQ_RGBA   0 255 255 255
55EXPECT framebuffer IDX 56 50 SIZE 1 100 EQ_RGBA 255   0   0 255
56EXPECT framebuffer IDX 57 50 SIZE 1 100 EQ_RGBA   0 255   0 255
57