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Merge pull request #680 from bunnei/fix-swizz
decoders: Fix calc of swizzle image_width_in_gobs.
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89f0acfd36
1 changed files with 4 additions and 1 deletions
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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cmath>
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#include <cstring>
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#include "common/assert.h"
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#include "core/memory.h"
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@ -17,7 +18,9 @@ namespace Texture {
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* Taken from the Tegra X1 TRM.
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*/
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static u32 GetSwizzleOffset(u32 x, u32 y, u32 image_width, u32 bytes_per_pixel, u32 block_height) {
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u32 image_width_in_gobs = image_width * bytes_per_pixel / 64;
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// Round up to the next gob
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const u32 image_width_in_gobs{(image_width * bytes_per_pixel + 63) / 64};
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u32 GOB_address = 0 + (y / (8 * block_height)) * 512 * block_height * image_width_in_gobs +
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(x * bytes_per_pixel / 64) * 512 * block_height +
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(y % (8 * block_height) / 8) * 512;
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