diff options
| -rw-r--r-- | src/video_core/textures/decoders.cpp | 40 | ||||
| -rw-r--r-- | src/video_core/textures/decoders.h | 9 |
2 files changed, 49 insertions, 0 deletions
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp index 18ab723f7..f1b40e7f5 100644 --- a/src/video_core/textures/decoders.cpp +++ b/src/video_core/textures/decoders.cpp @@ -237,6 +237,46 @@ std::vector<u8> UnswizzleTexture(VAddr address, u32 tile_size, u32 bytes_per_pix return unswizzled_data; } +void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32 swizzled_width, + u32 bytes_per_pixel, VAddr swizzled_data, VAddr unswizzled_data, + u32 block_height) { + const u32 image_width_in_gobs{(swizzled_width * bytes_per_pixel + 63) / 64}; + for (u32 line = 0; line < subrect_height; ++line) { + const u32 gob_address_y = + (line / (8 * block_height)) * 512 * block_height * image_width_in_gobs + + (line % (8 * block_height) / 8) * 512; + const auto& table = legacy_swizzle_table[line % 8]; + for (u32 x = 0; x < subrect_width; ++x) { + const u32 gob_address = gob_address_y + (x * bytes_per_pixel / 64) * 512 * block_height; + const u32 swizzled_offset = gob_address + table[(x * bytes_per_pixel) % 64]; + const VAddr source_line = unswizzled_data + line * source_pitch + x * bytes_per_pixel; + const VAddr dest_addr = swizzled_data + swizzled_offset; + + Memory::CopyBlock(dest_addr, source_line, bytes_per_pixel); + } + } +} + +void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32 swizzled_width, + u32 bytes_per_pixel, VAddr swizzled_data, VAddr unswizzled_data, + u32 block_height, u32 offset_x, u32 offset_y) { + for (u32 line = 0; line < subrect_height; ++line) { + const u32 y2 = line + offset_y; + const u32 gob_address_y = + (y2 / (8 * block_height)) * 512 * block_height + (y2 % (8 * block_height) / 8) * 512; + const auto& table = legacy_swizzle_table[y2 % 8]; + for (u32 x = 0; x < subrect_width; ++x) { + const u32 x2 = (x + offset_x) * bytes_per_pixel; + const u32 gob_address = gob_address_y + (x2 / 64) * 512 * block_height; + const u32 swizzled_offset = gob_address + table[x2 % 64]; + const VAddr dest_line = unswizzled_data + line * dest_pitch + x * bytes_per_pixel; + const VAddr source_addr = swizzled_data + swizzled_offset; + + Memory::CopyBlock(dest_line, source_addr, bytes_per_pixel); + } + } +} + std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat format, u32 width, u32 height) { std::vector<u8> rgba_data; diff --git a/src/video_core/textures/decoders.h b/src/video_core/textures/decoders.h index aaf316947..4726f54a5 100644 --- a/src/video_core/textures/decoders.h +++ b/src/video_core/textures/decoders.h @@ -35,4 +35,13 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth, u32 block_height, u32 block_depth); +/// Copies an untiled subrectangle into a tiled surface. +void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32 swizzled_width, + u32 bytes_per_pixel, VAddr swizzled_data, VAddr unswizzled_data, + u32 block_height); +/// Copies a tiled subrectangle into a linear surface. +void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32 swizzled_width, + u32 bytes_per_pixel, VAddr swizzled_data, VAddr unswizzled_data, + u32 block_height, u32 offset_x, u32 offset_y); + } // namespace Tegra::Texture |