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author | bunnei <bunneidev@gmail.com> | 2020-05-05 23:12:42 +0200 |
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committer | GitHub <noreply@github.com> | 2020-05-05 23:12:42 +0200 |
commit | 41682e0888f7cb640787ab8d9a7e5c0ebb83d8fa (patch) | |
tree | 64c61fda0aaa076cd54c46e8c271e67888c79c61 /src/video_core/textures | |
parent | Merge pull request #3881 from lioncash/mem-warning (diff) | |
parent | Update src/video_core/gpu.cpp (diff) | |
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Diffstat (limited to 'src/video_core/textures')
-rw-r--r-- | src/video_core/textures/decoders.cpp | 14 | ||||
-rw-r--r-- | src/video_core/textures/decoders.h | 4 |
2 files changed, 18 insertions, 0 deletions
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp index fae8638ec..548e4c3fe 100644 --- a/src/video_core/textures/decoders.cpp +++ b/src/video_core/textures/decoders.cpp @@ -382,4 +382,18 @@ std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height } } +u64 GetGOBOffset(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height, + u32 bytes_per_pixel) { + auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); }; + const u32 gobs_in_block = 1 << block_height; + const u32 y_blocks = gob_size_y << block_height; + const u32 x_per_gob = gob_size_x / bytes_per_pixel; + const u32 x_blocks = div_ceil(width, x_per_gob); + const u32 block_size = gob_size * gobs_in_block; + const u32 stride = block_size * x_blocks; + const u32 base = (dst_y / y_blocks) * stride + (dst_x / x_per_gob) * block_size; + const u32 relative_y = dst_y % y_blocks; + return base + (relative_y / gob_size_y) * gob_size; +} + } // namespace Tegra::Texture diff --git a/src/video_core/textures/decoders.h b/src/video_core/textures/decoders.h index 9f2d6d308..06f3ebf87 100644 --- a/src/video_core/textures/decoders.h +++ b/src/video_core/textures/decoders.h @@ -59,4 +59,8 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32 void SwizzleKepler(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height, std::size_t copy_size, const u8* source_data, u8* swizzle_data); +/// Obtains the offset of the gob for positions 'dst_x' & 'dst_y' +u64 GetGOBOffset(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height, + u32 bytes_per_pixel); + } // namespace Tegra::Texture |