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#!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 compute write GLSL
#version 450
layout(set=0, binding=0, rgba32i) uniform iimage3D im3d;
void main() {
uvec3 gid = gl_GlobalInvocationID;
ivec3 coord = ivec3(gid.x, gid.y, gid.z);
ivec4 data = ivec4(gid.x + 1, gid.y + 1, gid.z + 1, 0);
imageStore(im3d, coord, data);
}
END
SHADER compute read GLSL
#version 450
layout(set=0, binding=0) uniform itexture3D im3d;
layout(set=0, binding=1) uniform sampler s;
layout(set=0, binding=2) buffer A { ivec4 x[]; } data;
void main() {
uvec3 gid = gl_GlobalInvocationID;
ivec3 coord = ivec3(gid.x, gid.y, gid.z);
uint linear = 4 * gid.z + 2 * gid.y + gid.x;
data.x[linear] = texture(isampler3D(im3d, s), coord);
}
END
BUFFER out_buf DATA_TYPE vec4<int32> SIZE 8 FILL 15
IMAGE im3d DATA_TYPE vec4<int32> DIM_3D \
WIDTH 2 HEIGHT 2 DEPTH 2 FILL 0
SAMPLER sampler \
ADDRESS_MODE_U clamp_to_edge \
ADDRESS_MODE_V clamp_to_edge \
ADDRESS_MODE_W clamp_to_edge \
MIN_FILTER nearest \
MAG_FILTER nearest \
MIN_LOD 0.0 \
MAX_LOD 0.0
PIPELINE compute write_pipe
ATTACH write
BIND BUFFER im3d AS storage_image DESCRIPTOR_SET 0 BINDING 0
END
PIPELINE compute read_pipe
ATTACH read
BIND BUFFER im3d AS sampled_image DESCRIPTOR_SET 0 BINDING 0
BIND SAMPLER sampler DESCRIPTOR_SET 0 BINDING 1
BIND BUFFER out_buf AS storage DESCRIPTOR_SET 0 BINDING 2
END
RUN write_pipe 2 2 2
RUN read_pipe 2 2 2
EXPECT out_buf IDX 0 EQ 1 1 1 0
EXPECT out_buf IDX 16 EQ 2 1 1 0
EXPECT out_buf IDX 32 EQ 1 2 1 0
EXPECT out_buf IDX 48 EQ 2 2 1 0
EXPECT out_buf IDX 64 EQ 1 1 2 0
EXPECT out_buf IDX 80 EQ 2 1 2 0
EXPECT out_buf IDX 96 EQ 1 2 2 0
EXPECT out_buf IDX 112 EQ 2 2 2 0
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