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31 lines
1.1 KiB
Text
31 lines
1.1 KiB
Text
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#version 450 core
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layout (local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
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layout (binding = 0, rgba8) uniform readonly restrict image2DMSArray msaa_in;
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layout (binding = 1, rgba8) uniform writeonly restrict image2DArray output_img;
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void main() {
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const ivec3 coords = ivec3(gl_GlobalInvocationID);
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if (any(greaterThanEqual(coords, imageSize(msaa_in)))) {
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return;
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}
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// TODO: Specialization constants for num_samples?
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const int num_samples = imageSamples(msaa_in);
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for (int curr_sample = 0; curr_sample < num_samples; ++curr_sample) {
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const vec4 pixel = imageLoad(msaa_in, coords, curr_sample);
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const int single_sample_x = 2 * coords.x + (curr_sample & 1);
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const int single_sample_y = 2 * coords.y + ((curr_sample / 2) & 1);
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const ivec3 dest_coords = ivec3(single_sample_x, single_sample_y, coords.z);
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if (any(greaterThanEqual(dest_coords, imageSize(output_img)))) {
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continue;
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}
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imageStore(output_img, dest_coords, pixel);
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}
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}
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