47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
// Copyright 2019 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#version 450
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#include "Etc2ShaderLib.comp"
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layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
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layout(push_constant) uniform ImageFormatBlock {
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uint compFormat;
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uint baseLayer;
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}
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u_pushConstant;
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layout(binding = 0, rgba32ui) readonly uniform WITH_TYPE(uimage) u_image0;
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layout(binding = 1, rgba8ui) writeonly uniform WITH_TYPE(uimage) u_image1;
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void main(void) {
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ivec3 pos = ivec3(gl_GlobalInvocationID.xyz);
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pos.z += int(u_pushConstant.baseLayer);
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uvec4 srcBlock = uvec4(imageLoad(u_image0, WITH_TYPE(getPos)(pos)));
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uint[16] decompressedAlpha =
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eac_decode_single_channel_block(flip32(srcBlock[0]), flip32(srcBlock[1]), false);
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ivec4[16] decompressed =
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etc2_decode_rgb_block(int(flip32(srcBlock[2])), int(flip32(srcBlock[3])), false);
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for (int y = 0; y < WITH_TYPE(BLOCK_Y_SIZE_); y++) {
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for (int x = 0; x < 4; x++) {
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imageStore(u_image1, WITH_TYPE(getPos)(ivec3(pos.xy * 4 + ivec2(x, y), pos.z)),
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ivec4(decompressed[y * 4 + x].rgb, decompressedAlpha[y * 4 + x]));
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}
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}
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}
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