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https://git.eden-emu.dev/eden-emu/eden.git
synced 2026-08-27 09:23:01 +00:00
lizzie
a769505a45
old table = 64 * 8 * sizeof(u32) = 512 * 4 = 4096 bytes
new table = 8 * sizeof(u32) = 8 * 4 = 32 bytes
the expression
```glsl
return ((pos & 0x0180) >> 1)
| ((pos & 0x0040) >> 2)
| ((pos & 0x0020) << 3)
| ((pos & 0x0010) << 1)
| ((pos & 0x000f) << 0);
```
is equivalent for generating the table but idk if we'd want that
Signed-off-by: lizzie <lizzie@eden-emu.dev>
Co-authored-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4146
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
58 lines
2.4 KiB
C++
58 lines
2.4 KiB
C++
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <span>
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#include "common/common_types.h"
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#include "video_core/textures/texture.h"
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namespace Tegra::Texture {
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constexpr u32 GOB_SIZE_X = 64;
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constexpr u32 GOB_SIZE_Y = 8;
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constexpr u32 GOB_SIZE_Z = 1;
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constexpr u32 GOB_SIZE = GOB_SIZE_X * GOB_SIZE_Y * GOB_SIZE_Z;
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constexpr u32 GOB_SIZE_X_SHIFT = 6;
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constexpr u32 GOB_SIZE_Y_SHIFT = 3;
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constexpr u32 GOB_SIZE_Z_SHIFT = 0;
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constexpr u32 GOB_SIZE_SHIFT = GOB_SIZE_X_SHIFT + GOB_SIZE_Y_SHIFT + GOB_SIZE_Z_SHIFT;
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constexpr u32 SWIZZLE_X_BITS = 0b100101111;
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constexpr u32 SWIZZLE_Y_BITS = 0b011010000;
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/// Unswizzles a block linear texture into linear memory.
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void UnswizzleTexture(std::span<u8> output, std::span<const u8> input, u32 bytes_per_pixel,
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u32 width, u32 height, u32 depth, u32 block_height, u32 block_depth,
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u32 stride_alignment = 1);
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/// Swizzles linear memory into a block linear texture.
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void SwizzleTexture(std::span<u8> output, std::span<const u8> input, u32 bytes_per_pixel, u32 width,
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u32 height, u32 depth, u32 block_height, u32 block_depth,
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u32 stride_alignment = 1);
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/// This function calculates the correct size of a texture depending if it's tiled or not.
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std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
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u32 block_height, u32 block_depth);
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/// Copies an untiled subrectangle into a tiled surface.
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void SwizzleSubrect(std::span<u8> output, std::span<const u8> input, u32 bytes_per_pixel, u32 width,
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u32 height, u32 depth, u32 origin_x, u32 origin_y, u32 extent_x, u32 extent_y,
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u32 block_height, u32 block_depth, u32 pitch_linear);
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/// Copies a tiled subrectangle into a linear surface.
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void UnswizzleSubrect(std::span<u8> output, std::span<const u8> input, u32 bytes_per_pixel,
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u32 width, u32 height, u32 depth, u32 origin_x, u32 origin_y, u32 extent_x,
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u32 extent_y, u32 block_height, u32 block_depth, u32 pitch_linear);
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/// Obtains the offset of the gob for positions 'dst_x' & 'dst_y'
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u64 GetGOBOffset(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height,
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u32 bytes_per_pixel);
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} // namespace Tegra::Texture
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