77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
// Copyright 2023 Citra Emulator Project
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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 "video_core/rasterizer_cache/surface_params.h"
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#include "video_core/rasterizer_cache/texture_codec.h"
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#include "video_core/rasterizer_cache/utils.h"
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namespace VideoCore {
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u32 MipLevels(u32 width, u32 height, u32 max_level) {
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u32 levels = 1;
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while (width > 8 && height > 8) {
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levels++;
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width >>= 1;
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height >>= 1;
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}
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return std::min(levels, max_level + 1);
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}
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void EncodeTexture(const SurfaceParams& surface_info, PAddr start_addr, PAddr end_addr,
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std::span<u8> source, std::span<u8> dest, bool convert) {
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const PixelFormat format = surface_info.pixel_format;
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const u32 func_index = static_cast<u32>(format);
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if (surface_info.is_tiled) {
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const MortonFunc SwizzleImpl =
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(convert ? SWIZZLE_TABLE_CONVERTED : SWIZZLE_TABLE)[func_index];
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if (SwizzleImpl) {
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SwizzleImpl(surface_info.width, surface_info.height, start_addr - surface_info.addr,
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end_addr - surface_info.addr, source, dest);
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return;
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}
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} else {
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const LinearFunc LinearEncodeImpl =
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(convert ? LINEAR_ENCODE_TABLE_CONVERTED : LINEAR_ENCODE_TABLE)[func_index];
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if (LinearEncodeImpl) {
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LinearEncodeImpl(source, dest);
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return;
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}
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}
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LOG_ERROR(HW_GPU, "Unimplemented texture encode function for pixel format = {}, tiled = {}",
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func_index, surface_info.is_tiled);
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UNIMPLEMENTED();
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}
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void DecodeTexture(const SurfaceParams& surface_info, PAddr start_addr, PAddr end_addr,
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std::span<u8> source, std::span<u8> dest, bool convert) {
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const PixelFormat format = surface_info.pixel_format;
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const u32 func_index = static_cast<u32>(format);
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if (surface_info.is_tiled) {
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const MortonFunc UnswizzleImpl =
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(convert ? UNSWIZZLE_TABLE_CONVERTED : UNSWIZZLE_TABLE)[func_index];
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if (UnswizzleImpl) {
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UnswizzleImpl(surface_info.width, surface_info.height, start_addr - surface_info.addr,
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end_addr - surface_info.addr, dest, source);
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return;
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}
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} else {
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const LinearFunc LinearDecodeImpl =
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(convert ? LINEAR_DECODE_TABLE_CONVERTED : LINEAR_DECODE_TABLE)[func_index];
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if (LinearDecodeImpl) {
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LinearDecodeImpl(source, dest);
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return;
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}
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}
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LOG_ERROR(HW_GPU, "Unimplemented texture decode function for pixel format = {}, tiled = {}",
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func_index, surface_info.is_tiled);
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UNIMPLEMENTED();
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}
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} // namespace VideoCore
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