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texture_cache: avoid overestimation of ASTC texture sizes

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This commit is contained in:
Liam 2023-05-31 12:42:34 -04:00
parent e882f6c1c3
commit 9a10c66e40
3 changed files with 15 additions and 5 deletions
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14
src/video_core/surface.cpp
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@ -3,6 +3,7 @@
#include "common/common_types.h"
#include "common/math_util.h"
#include "common/settings.h"
#include "video_core/surface.h"
namespace VideoCore::Surface {
@ -400,11 +401,20 @@ std::pair<u32, u32> GetASTCBlockSize(PixelFormat format) {
return {DefaultBlockWidth(format), DefaultBlockHeight(format)};
}
u64 EstimatedDecompressedSize(u64 base_size, PixelFormat format) {
u64 TranscodedAstcSize(u64 base_size, PixelFormat format) {
constexpr u64 RGBA8_PIXEL_SIZE = 4;
const u64 base_block_size = static_cast<u64>(DefaultBlockWidth(format)) *
static_cast<u64>(DefaultBlockHeight(format)) * RGBA8_PIXEL_SIZE;
return (base_size * base_block_size) / BytesPerBlock(format);
const u64 uncompressed_size = (base_size * base_block_size) / BytesPerBlock(format);
switch (Settings::values.astc_recompression.GetValue()) {
case Settings::AstcRecompression::Bc1:
return uncompressed_size / 8;
case Settings::AstcRecompression::Bc3:
return uncompressed_size / 4;
default:
return uncompressed_size;
}
}
} // namespace VideoCore::Surface