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 compute compute_shader GLSL
17#version 430
18
19layout(set = 0, binding = 0) buffer block0
20{
21    vec4 data0;
22};
23
24layout(set = 0, binding = 1) buffer block1
25{
26    vec4 data1;
27};
28layout(set = 0, binding = 2) buffer block2
29{
30    vec4 data2;
31};
32
33void main()
34{
35    data0 = vec4(1, 2, 3, 4);
36    data1 = vec4(5, 6, 7, 8);
37    data2 = vec4(9, 10, 11, 12);
38}
39END
40
41# The Vulkan spec lists the maximum value of minStorageBufferOffsetAlignment
42# (i.e. the maximum possible alignment requirement) as 256 bytes.
43# Allocate enough space to hold one vec4 (each 16 bytes)
44# after the alignment (256 / 16 + 1).
45BUFFER buf0 DATA_TYPE vec4<float> SIZE 17 FILL 0.0
46BUFFER buf1 DATA_TYPE vec4<float> SIZE 17 FILL 0.0
47BUFFER buf2 DATA_TYPE vec4<float> SIZE 33 FILL 0.0
48
49PIPELINE compute pipeline
50  ATTACH compute_shader
51
52  BIND BUFFER buf0 AS storage_dynamic DESCRIPTOR_SET 0 BINDING 0 OFFSET 0
53  # Using the maximum possible required offset alignment of 256 bytes to support all implementations.
54  BIND BUFFER buf1 AS storage_dynamic DESCRIPTOR_SET 0 BINDING 1 OFFSET 256
55  # Same as above, but with buffer offset of 256 bytes (total offset of 512).
56  BIND BUFFER buf2 AS storage_dynamic DESCRIPTOR_SET 0 BINDING 2 OFFSET 256 DESCRIPTOR_OFFSET 256
57END
58
59RUN pipeline 1 1 1
60
61EXPECT buf0 IDX 0 EQ 1.0 2.0 3.0 4.0
62EXPECT buf1 IDX 256 EQ 5.0 6.0 7.0 8.0
63EXPECT buf2 IDX 512 EQ 9.0 10.0 11.0 12.0
64