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Diffstat (limited to '')
-rw-r--r-- | src/video_core/morton.cpp | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/src/video_core/morton.cpp b/src/video_core/morton.cpp new file mode 100644 index 000000000..3dd0e4754 --- /dev/null +++ b/src/video_core/morton.cpp @@ -0,0 +1,353 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <array> +#include <cstring> +#include "common/assert.h" +#include "common/common_types.h" +#include "core/memory.h" +#include "video_core/morton.h" +#include "video_core/surface.h" +#include "video_core/textures/decoders.h" + +namespace VideoCore { + +using Surface::GetBytesPerPixel; +using Surface::PixelFormat; + +using MortonCopyFn = void (*)(u32, u32, u32, u32, u32, u8*, std::size_t, VAddr); +using ConversionArray = std::array<MortonCopyFn, Surface::MaxPixelFormat>; + +template <bool morton_to_linear, PixelFormat format> +static void MortonCopy(u32 stride, u32 block_height, u32 height, u32 block_depth, u32 depth, + u8* buffer, std::size_t buffer_size, VAddr addr) { + constexpr u32 bytes_per_pixel = GetBytesPerPixel(format); + + // With the BCn formats (DXT and DXN), each 4x4 tile is swizzled instead of just individual + // pixel values. + const u32 tile_size_x{GetDefaultBlockWidth(format)}; + const u32 tile_size_y{GetDefaultBlockHeight(format)}; + + if (morton_to_linear) { + Tegra::Texture::UnswizzleTexture(buffer, addr, tile_size_x, tile_size_y, bytes_per_pixel, + stride, height, depth, block_height, block_depth); + } else { + Tegra::Texture::CopySwizzledData((stride + tile_size_x - 1) / tile_size_x, + (height + tile_size_y - 1) / tile_size_y, depth, + bytes_per_pixel, bytes_per_pixel, Memory::GetPointer(addr), + buffer, false, block_height, block_depth); + } +} + +static constexpr ConversionArray morton_to_linear_fns = { + // clang-format off + MortonCopy<true, PixelFormat::ABGR8U>, + MortonCopy<true, PixelFormat::ABGR8S>, + MortonCopy<true, PixelFormat::ABGR8UI>, + MortonCopy<true, PixelFormat::B5G6R5U>, + MortonCopy<true, PixelFormat::A2B10G10R10U>, + MortonCopy<true, PixelFormat::A1B5G5R5U>, + MortonCopy<true, PixelFormat::R8U>, + MortonCopy<true, PixelFormat::R8UI>, + MortonCopy<true, PixelFormat::RGBA16F>, + MortonCopy<true, PixelFormat::RGBA16U>, + MortonCopy<true, PixelFormat::RGBA16UI>, + MortonCopy<true, PixelFormat::R11FG11FB10F>, + MortonCopy<true, PixelFormat::RGBA32UI>, + MortonCopy<true, PixelFormat::DXT1>, + MortonCopy<true, PixelFormat::DXT23>, + MortonCopy<true, PixelFormat::DXT45>, + MortonCopy<true, PixelFormat::DXN1>, + MortonCopy<true, PixelFormat::DXN2UNORM>, + MortonCopy<true, PixelFormat::DXN2SNORM>, + MortonCopy<true, PixelFormat::BC7U>, + MortonCopy<true, PixelFormat::BC6H_UF16>, + MortonCopy<true, PixelFormat::BC6H_SF16>, + MortonCopy<true, PixelFormat::ASTC_2D_4X4>, + MortonCopy<true, PixelFormat::G8R8U>, + MortonCopy<true, PixelFormat::G8R8S>, + MortonCopy<true, PixelFormat::BGRA8>, + MortonCopy<true, PixelFormat::RGBA32F>, + MortonCopy<true, PixelFormat::RG32F>, + MortonCopy<true, PixelFormat::R32F>, + MortonCopy<true, PixelFormat::R16F>, + MortonCopy<true, PixelFormat::R16U>, + MortonCopy<true, PixelFormat::R16S>, + MortonCopy<true, PixelFormat::R16UI>, + MortonCopy<true, PixelFormat::R16I>, + MortonCopy<true, PixelFormat::RG16>, + MortonCopy<true, PixelFormat::RG16F>, + MortonCopy<true, PixelFormat::RG16UI>, + MortonCopy<true, PixelFormat::RG16I>, + MortonCopy<true, PixelFormat::RG16S>, + MortonCopy<true, PixelFormat::RGB32F>, + MortonCopy<true, PixelFormat::RGBA8_SRGB>, + MortonCopy<true, PixelFormat::RG8U>, + MortonCopy<true, PixelFormat::RG8S>, + MortonCopy<true, PixelFormat::RG32UI>, + MortonCopy<true, PixelFormat::R32UI>, + MortonCopy<true, PixelFormat::ASTC_2D_8X8>, + MortonCopy<true, PixelFormat::ASTC_2D_8X5>, + MortonCopy<true, PixelFormat::ASTC_2D_5X4>, + MortonCopy<true, PixelFormat::BGRA8_SRGB>, + MortonCopy<true, PixelFormat::DXT1_SRGB>, + MortonCopy<true, PixelFormat::DXT23_SRGB>, + MortonCopy<true, PixelFormat::DXT45_SRGB>, + MortonCopy<true, PixelFormat::BC7U_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_4X4_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_8X8_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_8X5_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_5X4_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_5X5>, + MortonCopy<true, PixelFormat::ASTC_2D_5X5_SRGB>, + MortonCopy<true, PixelFormat::ASTC_2D_10X8>, + MortonCopy<true, PixelFormat::ASTC_2D_10X8_SRGB>, + MortonCopy<true, PixelFormat::Z32F>, + MortonCopy<true, PixelFormat::Z16>, + MortonCopy<true, PixelFormat::Z24S8>, + MortonCopy<true, PixelFormat::S8Z24>, + MortonCopy<true, PixelFormat::Z32FS8>, + // clang-format on +}; + +static constexpr ConversionArray linear_to_morton_fns = { + // clang-format off + MortonCopy<false, PixelFormat::ABGR8U>, + MortonCopy<false, PixelFormat::ABGR8S>, + MortonCopy<false, PixelFormat::ABGR8UI>, + MortonCopy<false, PixelFormat::B5G6R5U>, + MortonCopy<false, PixelFormat::A2B10G10R10U>, + MortonCopy<false, PixelFormat::A1B5G5R5U>, + MortonCopy<false, PixelFormat::R8U>, + MortonCopy<false, PixelFormat::R8UI>, + MortonCopy<false, PixelFormat::RGBA16F>, + MortonCopy<false, PixelFormat::RGBA16U>, + MortonCopy<false, PixelFormat::RGBA16UI>, + MortonCopy<false, PixelFormat::R11FG11FB10F>, + MortonCopy<false, PixelFormat::RGBA32UI>, + MortonCopy<false, PixelFormat::DXT1>, + MortonCopy<false, PixelFormat::DXT23>, + MortonCopy<false, PixelFormat::DXT45>, + MortonCopy<false, PixelFormat::DXN1>, + MortonCopy<false, PixelFormat::DXN2UNORM>, + MortonCopy<false, PixelFormat::DXN2SNORM>, + MortonCopy<false, PixelFormat::BC7U>, + MortonCopy<false, PixelFormat::BC6H_UF16>, + MortonCopy<false, PixelFormat::BC6H_SF16>, + // TODO(Subv): Swizzling ASTC formats are not supported + nullptr, + MortonCopy<false, PixelFormat::G8R8U>, + MortonCopy<false, PixelFormat::G8R8S>, + MortonCopy<false, PixelFormat::BGRA8>, + MortonCopy<false, PixelFormat::RGBA32F>, + MortonCopy<false, PixelFormat::RG32F>, + MortonCopy<false, PixelFormat::R32F>, + MortonCopy<false, PixelFormat::R16F>, + MortonCopy<false, PixelFormat::R16U>, + MortonCopy<false, PixelFormat::R16S>, + MortonCopy<false, PixelFormat::R16UI>, + MortonCopy<false, PixelFormat::R16I>, + MortonCopy<false, PixelFormat::RG16>, + MortonCopy<false, PixelFormat::RG16F>, + MortonCopy<false, PixelFormat::RG16UI>, + MortonCopy<false, PixelFormat::RG16I>, + MortonCopy<false, PixelFormat::RG16S>, + MortonCopy<false, PixelFormat::RGB32F>, + MortonCopy<false, PixelFormat::RGBA8_SRGB>, + MortonCopy<false, PixelFormat::RG8U>, + MortonCopy<false, PixelFormat::RG8S>, + MortonCopy<false, PixelFormat::RG32UI>, + MortonCopy<false, PixelFormat::R32UI>, + nullptr, + nullptr, + nullptr, + MortonCopy<false, PixelFormat::BGRA8_SRGB>, + MortonCopy<false, PixelFormat::DXT1_SRGB>, + MortonCopy<false, PixelFormat::DXT23_SRGB>, + MortonCopy<false, PixelFormat::DXT45_SRGB>, + MortonCopy<false, PixelFormat::BC7U_SRGB>, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + MortonCopy<false, PixelFormat::Z32F>, + MortonCopy<false, PixelFormat::Z16>, + MortonCopy<false, PixelFormat::Z24S8>, + MortonCopy<false, PixelFormat::S8Z24>, + MortonCopy<false, PixelFormat::Z32FS8>, + // clang-format on +}; + +constexpr MortonCopyFn GetSwizzleFunction(MortonSwizzleMode mode, Surface::PixelFormat format) { + switch (mode) { + case MortonSwizzleMode::MortonToLinear: + return morton_to_linear_fns[static_cast<std::size_t>(format)]; + case MortonSwizzleMode::LinearToMorton: + return linear_to_morton_fns[static_cast<std::size_t>(format)]; + } +} + +/// 8x8 Z-Order coordinate from 2D coordinates +static u32 MortonInterleave(u32 x, u32 y) { + static const u32 xlut[] = {0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15}; + static const u32 ylut[] = {0x00, 0x02, 0x08, 0x0a, 0x20, 0x22, 0x28, 0x2a}; + return xlut[x % 8] + ylut[y % 8]; +} + +/// Calculates the offset of the position of the pixel in Morton order +static u32 GetMortonOffset(u32 x, u32 y, u32 bytes_per_pixel) { + // Images are split into 8x8 tiles. Each tile is composed of four 4x4 subtiles each + // of which is composed of four 2x2 subtiles each of which is composed of four texels. + // Each structure is embedded into the next-bigger one in a diagonal pattern, e.g. + // texels are laid out in a 2x2 subtile like this: + // 2 3 + // 0 1 + // + // The full 8x8 tile has the texels arranged like this: + // + // 42 43 46 47 58 59 62 63 + // 40 41 44 45 56 57 60 61 + // 34 35 38 39 50 51 54 55 + // 32 33 36 37 48 49 52 53 + // 10 11 14 15 26 27 30 31 + // 08 09 12 13 24 25 28 29 + // 02 03 06 07 18 19 22 23 + // 00 01 04 05 16 17 20 21 + // + // This pattern is what's called Z-order curve, or Morton order. + + const unsigned int block_height = 8; + const unsigned int coarse_x = x & ~7; + + u32 i = MortonInterleave(x, y); + + const unsigned int offset = coarse_x * block_height; + + return (i + offset) * bytes_per_pixel; +} + +static u32 MortonInterleave128(u32 x, u32 y) { + // 128x128 Z-Order coordinate from 2D coordinates + static constexpr u32 xlut[] = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0008, 0x0009, 0x000a, 0x000b, 0x0040, 0x0041, 0x0042, + 0x0043, 0x0048, 0x0049, 0x004a, 0x004b, 0x0800, 0x0801, 0x0802, 0x0803, 0x0808, 0x0809, + 0x080a, 0x080b, 0x0840, 0x0841, 0x0842, 0x0843, 0x0848, 0x0849, 0x084a, 0x084b, 0x1000, + 0x1001, 0x1002, 0x1003, 0x1008, 0x1009, 0x100a, 0x100b, 0x1040, 0x1041, 0x1042, 0x1043, + 0x1048, 0x1049, 0x104a, 0x104b, 0x1800, 0x1801, 0x1802, 0x1803, 0x1808, 0x1809, 0x180a, + 0x180b, 0x1840, 0x1841, 0x1842, 0x1843, 0x1848, 0x1849, 0x184a, 0x184b, 0x2000, 0x2001, + 0x2002, 0x2003, 0x2008, 0x2009, 0x200a, 0x200b, 0x2040, 0x2041, 0x2042, 0x2043, 0x2048, + 0x2049, 0x204a, 0x204b, 0x2800, 0x2801, 0x2802, 0x2803, 0x2808, 0x2809, 0x280a, 0x280b, + 0x2840, 0x2841, 0x2842, 0x2843, 0x2848, 0x2849, 0x284a, 0x284b, 0x3000, 0x3001, 0x3002, + 0x3003, 0x3008, 0x3009, 0x300a, 0x300b, 0x3040, 0x3041, 0x3042, 0x3043, 0x3048, 0x3049, + 0x304a, 0x304b, 0x3800, 0x3801, 0x3802, 0x3803, 0x3808, 0x3809, 0x380a, 0x380b, 0x3840, + 0x3841, 0x3842, 0x3843, 0x3848, 0x3849, 0x384a, 0x384b, 0x0000, 0x0001, 0x0002, 0x0003, + 0x0008, 0x0009, 0x000a, 0x000b, 0x0040, 0x0041, 0x0042, 0x0043, 0x0048, 0x0049, 0x004a, + 0x004b, 0x0800, 0x0801, 0x0802, 0x0803, 0x0808, 0x0809, 0x080a, 0x080b, 0x0840, 0x0841, + 0x0842, 0x0843, 0x0848, 0x0849, 0x084a, 0x084b, 0x1000, 0x1001, 0x1002, 0x1003, 0x1008, + 0x1009, 0x100a, 0x100b, 0x1040, 0x1041, 0x1042, 0x1043, 0x1048, 0x1049, 0x104a, 0x104b, + 0x1800, 0x1801, 0x1802, 0x1803, 0x1808, 0x1809, 0x180a, 0x180b, 0x1840, 0x1841, 0x1842, + 0x1843, 0x1848, 0x1849, 0x184a, 0x184b, 0x2000, 0x2001, 0x2002, 0x2003, 0x2008, 0x2009, + 0x200a, 0x200b, 0x2040, 0x2041, 0x2042, 0x2043, 0x2048, 0x2049, 0x204a, 0x204b, 0x2800, + 0x2801, 0x2802, 0x2803, 0x2808, 0x2809, 0x280a, 0x280b, 0x2840, 0x2841, 0x2842, 0x2843, + 0x2848, 0x2849, 0x284a, 0x284b, 0x3000, 0x3001, 0x3002, 0x3003, 0x3008, 0x3009, 0x300a, + 0x300b, 0x3040, 0x3041, 0x3042, 0x3043, 0x3048, 0x3049, 0x304a, 0x304b, 0x3800, 0x3801, + 0x3802, 0x3803, 0x3808, 0x3809, 0x380a, 0x380b, 0x3840, 0x3841, 0x3842, 0x3843, 0x3848, + 0x3849, 0x384a, 0x384b, 0x0000, 0x0001, 0x0002, 0x0003, 0x0008, 0x0009, 0x000a, 0x000b, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0048, 0x0049, 0x004a, 0x004b, 0x0800, 0x0801, 0x0802, + 0x0803, 0x0808, 0x0809, 0x080a, 0x080b, 0x0840, 0x0841, 0x0842, 0x0843, 0x0848, 0x0849, + 0x084a, 0x084b, 0x1000, 0x1001, 0x1002, 0x1003, 0x1008, 0x1009, 0x100a, 0x100b, 0x1040, + 0x1041, 0x1042, 0x1043, 0x1048, 0x1049, 0x104a, 0x104b, 0x1800, 0x1801, 0x1802, 0x1803, + 0x1808, 0x1809, 0x180a, 0x180b, 0x1840, 0x1841, 0x1842, 0x1843, 0x1848, 0x1849, 0x184a, + 0x184b, 0x2000, 0x2001, 0x2002, 0x2003, 0x2008, 0x2009, 0x200a, 0x200b, 0x2040, 0x2041, + 0x2042, 0x2043, 0x2048, 0x2049, 0x204a, 0x204b, 0x2800, 0x2801, 0x2802, 0x2803, 0x2808, + 0x2809, 0x280a, 0x280b, 0x2840, 0x2841, 0x2842, 0x2843, 0x2848, 0x2849, 0x284a, 0x284b, + 0x3000, 0x3001, 0x3002, 0x3003, 0x3008, 0x3009, 0x300a, 0x300b, 0x3040, 0x3041, 0x3042, + 0x3043, 0x3048, 0x3049, 0x304a, 0x304b, 0x3800, 0x3801, 0x3802, 0x3803, 0x3808, 0x3809, + 0x380a, 0x380b, 0x3840, 0x3841, 0x3842, 0x3843, 0x3848, 0x3849, 0x384a, 0x384b, + }; + static constexpr u32 ylut[] = { + 0x0000, 0x0004, 0x0010, 0x0014, 0x0020, 0x0024, 0x0030, 0x0034, 0x0080, 0x0084, 0x0090, + 0x0094, 0x00a0, 0x00a4, 0x00b0, 0x00b4, 0x0100, 0x0104, 0x0110, 0x0114, 0x0120, 0x0124, + 0x0130, 0x0134, 0x0180, 0x0184, 0x0190, 0x0194, 0x01a0, 0x01a4, 0x01b0, 0x01b4, 0x0200, + 0x0204, 0x0210, 0x0214, 0x0220, 0x0224, 0x0230, 0x0234, 0x0280, 0x0284, 0x0290, 0x0294, + 0x02a0, 0x02a4, 0x02b0, 0x02b4, 0x0300, 0x0304, 0x0310, 0x0314, 0x0320, 0x0324, 0x0330, + 0x0334, 0x0380, 0x0384, 0x0390, 0x0394, 0x03a0, 0x03a4, 0x03b0, 0x03b4, 0x0400, 0x0404, + 0x0410, 0x0414, 0x0420, 0x0424, 0x0430, 0x0434, 0x0480, 0x0484, 0x0490, 0x0494, 0x04a0, + 0x04a4, 0x04b0, 0x04b4, 0x0500, 0x0504, 0x0510, 0x0514, 0x0520, 0x0524, 0x0530, 0x0534, + 0x0580, 0x0584, 0x0590, 0x0594, 0x05a0, 0x05a4, 0x05b0, 0x05b4, 0x0600, 0x0604, 0x0610, + 0x0614, 0x0620, 0x0624, 0x0630, 0x0634, 0x0680, 0x0684, 0x0690, 0x0694, 0x06a0, 0x06a4, + 0x06b0, 0x06b4, 0x0700, 0x0704, 0x0710, 0x0714, 0x0720, 0x0724, 0x0730, 0x0734, 0x0780, + 0x0784, 0x0790, 0x0794, 0x07a0, 0x07a4, 0x07b0, 0x07b4, 0x0000, 0x0004, 0x0010, 0x0014, + 0x0020, 0x0024, 0x0030, 0x0034, 0x0080, 0x0084, 0x0090, 0x0094, 0x00a0, 0x00a4, 0x00b0, + 0x00b4, 0x0100, 0x0104, 0x0110, 0x0114, 0x0120, 0x0124, 0x0130, 0x0134, 0x0180, 0x0184, + 0x0190, 0x0194, 0x01a0, 0x01a4, 0x01b0, 0x01b4, 0x0200, 0x0204, 0x0210, 0x0214, 0x0220, + 0x0224, 0x0230, 0x0234, 0x0280, 0x0284, 0x0290, 0x0294, 0x02a0, 0x02a4, 0x02b0, 0x02b4, + 0x0300, 0x0304, 0x0310, 0x0314, 0x0320, 0x0324, 0x0330, 0x0334, 0x0380, 0x0384, 0x0390, + 0x0394, 0x03a0, 0x03a4, 0x03b0, 0x03b4, 0x0400, 0x0404, 0x0410, 0x0414, 0x0420, 0x0424, + 0x0430, 0x0434, 0x0480, 0x0484, 0x0490, 0x0494, 0x04a0, 0x04a4, 0x04b0, 0x04b4, 0x0500, + 0x0504, 0x0510, 0x0514, 0x0520, 0x0524, 0x0530, 0x0534, 0x0580, 0x0584, 0x0590, 0x0594, + 0x05a0, 0x05a4, 0x05b0, 0x05b4, 0x0600, 0x0604, 0x0610, 0x0614, 0x0620, 0x0624, 0x0630, + 0x0634, 0x0680, 0x0684, 0x0690, 0x0694, 0x06a0, 0x06a4, 0x06b0, 0x06b4, 0x0700, 0x0704, + 0x0710, 0x0714, 0x0720, 0x0724, 0x0730, 0x0734, 0x0780, 0x0784, 0x0790, 0x0794, 0x07a0, + 0x07a4, 0x07b0, 0x07b4, 0x0000, 0x0004, 0x0010, 0x0014, 0x0020, 0x0024, 0x0030, 0x0034, + 0x0080, 0x0084, 0x0090, 0x0094, 0x00a0, 0x00a4, 0x00b0, 0x00b4, 0x0100, 0x0104, 0x0110, + 0x0114, 0x0120, 0x0124, 0x0130, 0x0134, 0x0180, 0x0184, 0x0190, 0x0194, 0x01a0, 0x01a4, + 0x01b0, 0x01b4, 0x0200, 0x0204, 0x0210, 0x0214, 0x0220, 0x0224, 0x0230, 0x0234, 0x0280, + 0x0284, 0x0290, 0x0294, 0x02a0, 0x02a4, 0x02b0, 0x02b4, 0x0300, 0x0304, 0x0310, 0x0314, + 0x0320, 0x0324, 0x0330, 0x0334, 0x0380, 0x0384, 0x0390, 0x0394, 0x03a0, 0x03a4, 0x03b0, + 0x03b4, 0x0400, 0x0404, 0x0410, 0x0414, 0x0420, 0x0424, 0x0430, 0x0434, 0x0480, 0x0484, + 0x0490, 0x0494, 0x04a0, 0x04a4, 0x04b0, 0x04b4, 0x0500, 0x0504, 0x0510, 0x0514, 0x0520, + 0x0524, 0x0530, 0x0534, 0x0580, 0x0584, 0x0590, 0x0594, 0x05a0, 0x05a4, 0x05b0, 0x05b4, + 0x0600, 0x0604, 0x0610, 0x0614, 0x0620, 0x0624, 0x0630, 0x0634, 0x0680, 0x0684, 0x0690, + 0x0694, 0x06a0, 0x06a4, 0x06b0, 0x06b4, 0x0700, 0x0704, 0x0710, 0x0714, 0x0720, 0x0724, + 0x0730, 0x0734, 0x0780, 0x0784, 0x0790, 0x0794, 0x07a0, 0x07a4, 0x07b0, 0x07b4, + }; + return xlut[x % 128] + ylut[y % 128]; +} + +static u32 GetMortonOffset128(u32 x, u32 y, u32 bytes_per_pixel) { + // Calculates the offset of the position of the pixel in Morton order + // Framebuffer images are split into 128x128 tiles. + + const unsigned int block_height = 128; + const unsigned int coarse_x = x & ~127; + + u32 i = MortonInterleave128(x, y); + + const unsigned int offset = coarse_x * block_height; + + return (i + offset) * bytes_per_pixel; +} + +void MortonSwizzle(MortonSwizzleMode mode, Surface::PixelFormat format, u32 stride, + u32 block_height, u32 height, u32 block_depth, u32 depth, u8* buffer, + std::size_t buffer_size, VAddr addr) { + + GetSwizzleFunction(mode, format)(stride, block_height, height, block_depth, depth, buffer, + buffer_size, addr); +} + +void MortonCopyPixels128(u32 width, u32 height, u32 bytes_per_pixel, u32 linear_bytes_per_pixel, + u8* morton_data, u8* linear_data, bool morton_to_linear) { + u8* data_ptrs[2]; + for (unsigned y = 0; y < height; ++y) { + for (unsigned x = 0; x < width; ++x) { + const u32 coarse_y = y & ~127; + u32 morton_offset = + GetMortonOffset128(x, y, bytes_per_pixel) + coarse_y * width * bytes_per_pixel; + u32 gl_pixel_index = (x + y * width) * linear_bytes_per_pixel; + + data_ptrs[morton_to_linear] = morton_data + morton_offset; + data_ptrs[!morton_to_linear] = &linear_data[gl_pixel_index]; + + memcpy(data_ptrs[0], data_ptrs[1], bytes_per_pixel); + } + } +} + +} // namespace VideoCore
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