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Shorten the implementation of 3D swizzle to only 3 functions
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@ -45,11 +45,11 @@ constexpr auto fast_swizzle_table = SwizzleTable<8, 4, 16>();
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* Instead of going gob by gob, we map the coordinates inside a block and manage from
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* those. Block_Width is assumed to be 1.
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*/
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void Precise3DProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 x_start, const u32 y_start, const u32 z_start, const u32 x_end,
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const u32 y_end, const u32 z_end, const u32 tile_offset,
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const u32 xy_block_size, const u32 layer_z, const u32 stride_x,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel) {
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void PreciseProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 x_start, const u32 y_start, const u32 z_start, const u32 x_end,
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const u32 y_end, const u32 z_end, const u32 tile_offset,
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const u32 xy_block_size, const u32 layer_z, const u32 stride_x,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel) {
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std::array<u8*, 2> data_ptrs;
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u32 z_address = tile_offset;
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const u32 gob_size_x = 64;
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@ -76,65 +76,16 @@ void Precise3DProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool un
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}
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}
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/**
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* This function unswizzles or swizzles a texture by mapping Linear to BlockLinear Textue.
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* The body of this function takes care of splitting the swizzled texture into blocks,
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* and managing the extents of it. Once all the parameters of a single block are obtained,
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* the function calls '3DProcessBlock' to process that particular Block.
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*
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* Documentation for the memory layout and decoding can be found at:
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* https://envytools.readthedocs.io/en/latest/hw/memory/g80-surface.html#blocklinear-surfaces
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*/
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void Precise3DSwizzledData(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 width, const u32 height, const u32 depth,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel,
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const u32 block_height, const u32 block_depth) {
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auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
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const u32 stride_x = width * out_bytes_per_pixel;
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const u32 layer_z = height * stride_x;
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const u32 gob_x_bytes = 64;
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const u32 gob_elements_x = gob_x_bytes / bytes_per_pixel;
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const u32 gob_elements_y = 8;
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const u32 gob_elements_z = 1;
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const u32 block_x_elements = gob_elements_x;
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const u32 block_y_elements = gob_elements_y * block_height;
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const u32 block_z_elements = gob_elements_z * block_depth;
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const u32 blocks_on_x = div_ceil(width, block_x_elements);
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const u32 blocks_on_y = div_ceil(height, block_y_elements);
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const u32 blocks_on_z = div_ceil(depth, block_z_elements);
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const u32 blocks = blocks_on_x * blocks_on_y * blocks_on_z;
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const u32 gob_size = gob_x_bytes * gob_elements_y * gob_elements_z;
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const u32 xy_block_size = gob_size * block_height;
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const u32 block_size = xy_block_size * block_depth;
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u32 tile_offset = 0;
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for (u32 zb = 0; zb < blocks_on_z; zb++) {
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const u32 z_start = zb * block_z_elements;
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const u32 z_end = std::min(depth, z_start + block_z_elements);
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for (u32 yb = 0; yb < blocks_on_y; yb++) {
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const u32 y_start = yb * block_y_elements;
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const u32 y_end = std::min(height, y_start + block_y_elements);
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for (u32 xb = 0; xb < blocks_on_x; xb++) {
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const u32 x_start = xb * block_x_elements;
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const u32 x_end = std::min(width, x_start + block_x_elements);
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Precise3DProcessBlock(swizzled_data, unswizzled_data, unswizzle, x_start, y_start,
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z_start, x_end, y_end, z_end, tile_offset, xy_block_size,
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layer_z, stride_x, bytes_per_pixel, out_bytes_per_pixel);
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tile_offset += block_size;
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}
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}
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}
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}
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/**
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* This function manages ALL the GOBs(Group of Bytes) Inside a single block.
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* Instead of going gob by gob, we map the coordinates inside a block and manage from
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* those. Block_Width is assumed to be 1.
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*/
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void Fast3DProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 x_start, const u32 y_start, const u32 z_start, const u32 x_end,
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const u32 y_end, const u32 z_end, const u32 tile_offset,
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const u32 xy_block_size, const u32 layer_z, const u32 stride_x,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel) {
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void FastProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 x_start, const u32 y_start, const u32 z_start, const u32 x_end,
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const u32 y_end, const u32 z_end, const u32 tile_offset,
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const u32 xy_block_size, const u32 layer_z, const u32 stride_x,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel) {
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std::array<u8*, 2> data_ptrs;
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u32 z_address = tile_offset;
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const u32 x_startb = x_start * bytes_per_pixel;
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@ -169,15 +120,15 @@ void Fast3DProcessBlock(u8* swizzled_data, u8* unswizzled_data, const bool unswi
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* This function unswizzles or swizzles a texture by mapping Linear to BlockLinear Textue.
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* The body of this function takes care of splitting the swizzled texture into blocks,
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* and managing the extents of it. Once all the parameters of a single block are obtained,
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* the function calls '3DProcessBlock' to process that particular Block.
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* the function calls 'ProcessBlock' to process that particular Block.
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*
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* Documentation for the memory layout and decoding can be found at:
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* https://envytools.readthedocs.io/en/latest/hw/memory/g80-surface.html#blocklinear-surfaces
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*/
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void Fast3DSwizzledData(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
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const u32 width, const u32 height, const u32 depth,
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const u32 bytes_per_pixel, const u32 out_bytes_per_pixel,
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const u32 block_height, const u32 block_depth) {
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template <bool fast>
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void SwizzledData(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle, const u32 width,
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const u32 height, const u32 depth, const u32 bytes_per_pixel,
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const u32 out_bytes_per_pixel, const u32 block_height, const u32 block_depth) {
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auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
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const u32 stride_x = width * out_bytes_per_pixel;
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const u32 layer_z = height * stride_x;
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@ -205,9 +156,15 @@ void Fast3DSwizzledData(u8* swizzled_data, u8* unswizzled_data, const bool unswi
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for (u32 xb = 0; xb < blocks_on_x; xb++) {
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const u32 x_start = xb * block_x_elements;
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const u32 x_end = std::min(width, x_start + block_x_elements);
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Fast3DProcessBlock(swizzled_data, unswizzled_data, unswizzle, x_start, y_start,
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z_start, x_end, y_end, z_end, tile_offset, xy_block_size,
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layer_z, stride_x, bytes_per_pixel, out_bytes_per_pixel);
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if (fast) {
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FastProcessBlock(swizzled_data, unswizzled_data, unswizzle, x_start, y_start,
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z_start, x_end, y_end, z_end, tile_offset, xy_block_size,
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layer_z, stride_x, bytes_per_pixel, out_bytes_per_pixel);
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} else {
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PreciseProcessBlock(swizzled_data, unswizzled_data, unswizzle, x_start, y_start,
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z_start, x_end, y_end, z_end, tile_offset, xy_block_size,
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layer_z, stride_x, bytes_per_pixel, out_bytes_per_pixel);
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}
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tile_offset += block_size;
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}
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}
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@ -218,11 +175,11 @@ void CopySwizzledData(u32 width, u32 height, u32 depth, u32 bytes_per_pixel,
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u32 out_bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data,
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bool unswizzle, u32 block_height, u32 block_depth) {
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if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % 16 == 0) {
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Fast3DSwizzledData(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
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SwizzledData<true>(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
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bytes_per_pixel, out_bytes_per_pixel, block_height, block_depth);
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} else {
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Precise3DSwizzledData(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
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bytes_per_pixel, out_bytes_per_pixel, block_height, block_depth);
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SwizzledData<false>(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
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bytes_per_pixel, out_bytes_per_pixel, block_height, block_depth);
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}
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}
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