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textures: Reintroduce CPU ASTC decoder

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Users may want to fall back to the CPU ASTC texture decoder due to hangs
and crashes that may be caused by keeping the GPU under compute heavy
loads for extended periods of time. This is especially the case in games
such as Astral Chain which make extensive use of ASTC textures.
This commit is contained in:
ameerj 2021-06-13 15:15:08 -04:00
parent f3caf53648
commit c4ff7ecf51
4 changed files with 1592 additions and 2 deletions
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13
src/video_core/texture_cache/util.cpp
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@ -47,6 +47,7 @@
#include "video_core/texture_cache/formatter.h"
#include "video_core/texture_cache/samples_helper.h"
#include "video_core/texture_cache/util.h"
#include "video_core/textures/astc.h"
#include "video_core/textures/decoders.h"
namespace VideoCommon {
@ -884,8 +885,16 @@ void ConvertImage(std::span<const u8> input, const ImageInfo& info, std::span<u8
ASSERT(copy.image_extent == mip_size);
ASSERT(copy.buffer_row_length == Common::AlignUp(mip_size.width, tile_size.width));
ASSERT(copy.buffer_image_height == Common::AlignUp(mip_size.height, tile_size.height));
DecompressBC4(input.subspan(copy.buffer_offset), copy.image_extent,
output.subspan(output_offset));
if (IsPixelFormatASTC(info.format)) {
ASSERT(copy.image_extent.depth == 1);
Tegra::Texture::ASTC::Decompress(input.subspan(copy.buffer_offset),
copy.image_extent.width, copy.image_extent.height,
copy.image_subresource.num_layers, tile_size.width,
tile_size.height, output.subspan(output_offset));
} else {
DecompressBC4(input.subspan(copy.buffer_offset), copy.image_extent,
output.subspan(output_offset));
}
copy.buffer_offset = output_offset;
copy.buffer_row_length = mip_size.width;
copy.buffer_image_height = mip_size.height;