diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_tile_image.c | 126 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_tile_image.h | 57 |
2 files changed, 183 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_image.c b/src/gallium/drivers/llvmpipe/lp_tile_image.c new file mode 100644 index 00000000000..c1980b316d5 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_tile_image.c @@ -0,0 +1,126 @@ +/************************************************************************** + * + * Copyright 2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "lp_tile_soa.h" +#include "lp_tile_image.h" + + +#define BYTES_PER_TILE (TILE_SIZE * TILE_SIZE * 4) + + +/** + * Convert a tiled image into a linear image. + * \param src_stride source row stride in bytes (bytes per row of tiles) + * \param dst_stride dest row stride in bytes + */ +void +lp_tiled_to_linear(const uint8_t *src, + uint8_t *dst, + unsigned width, unsigned height, + enum pipe_format format, + unsigned src_stride, + unsigned dst_stride) +{ + const unsigned tiles_per_row = src_stride / BYTES_PER_TILE; + unsigned i, j; + + for (j = 0; j < height; j += TILE_SIZE) { + for (i = 0; i < width; i += TILE_SIZE) { + unsigned tile_offset = + ((j / TILE_SIZE) * tiles_per_row + i / TILE_SIZE); + unsigned byte_offset = tile_offset * BYTES_PER_TILE; + const uint8_t *src_tile = src + byte_offset; + + lp_tile_write_4ub(format, + src_tile, + dst, + dst_stride, + i, j, TILE_SIZE, TILE_SIZE); + } + } +} + + +/** + * Convert a linear image into a tiled image. + * \param src_stride source row stride in bytes + * \param dst_stride dest row stride in bytes (bytes per row of tiles) + */ +void +lp_linear_to_tiled(const uint8_t *src, + uint8_t *dst, + unsigned width, unsigned height, + enum pipe_format format, + unsigned src_stride, + unsigned dst_stride) +{ + const unsigned tiles_per_row = dst_stride / BYTES_PER_TILE; + unsigned i, j; + + for (j = 0; j < height; j += TILE_SIZE) { + for (i = 0; i < width; i += TILE_SIZE) { + unsigned tile_offset = + ((j / TILE_SIZE) * tiles_per_row + i / TILE_SIZE); + unsigned byte_offset = tile_offset * BYTES_PER_TILE; + uint8_t *dst_tile = dst + byte_offset; + + lp_tile_read_4ub(format, + dst_tile, + src, + src_stride, + i, j, TILE_SIZE, TILE_SIZE); + } + } +} + + +/** + * For testing only. + */ +void +test_tiled_linear_conversion(uint8_t *data, + enum pipe_format format, + unsigned width, unsigned height, + unsigned stride) +{ + /* size in tiles */ + unsigned wt = (width + TILE_SIZE - 1) / TILE_SIZE; + unsigned ht = (height + TILE_SIZE - 1) / TILE_SIZE; + + uint8_t *tiled = malloc(wt * ht * TILE_SIZE * TILE_SIZE * 4); + + unsigned tiled_stride = wt * TILE_SIZE * TILE_SIZE * 4; + + lp_linear_to_tiled(data, tiled, width, height, format, + stride, tiled_stride); + + lp_tiled_to_linear(tiled, data, width, height, format, + tiled_stride, stride); + + free(tiled); +} + diff --git a/src/gallium/drivers/llvmpipe/lp_tile_image.h b/src/gallium/drivers/llvmpipe/lp_tile_image.h new file mode 100644 index 00000000000..60d472e8c5b --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_tile_image.h @@ -0,0 +1,57 @@ +/************************************************************************** + * + * Copyright 2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef LP_TILE_IMAGE_H +#define LP_TILE_IMAGE_H + + +void +lp_tiled_to_linear(const uint8_t *src, + uint8_t *dst, + unsigned width, unsigned height, + enum pipe_format format, + unsigned src_stride, + unsigned dst_stride); + + +void +lp_linear_to_tiled(const uint8_t *src, + uint8_t *dst, + unsigned width, unsigned height, + enum pipe_format format, + unsigned src_stride, + unsigned dst_stride); + + +void +test_tiled_linear_conversion(uint8_t *data, + enum pipe_format format, + unsigned width, unsigned height, + unsigned stride); + + +#endif /* LP_TILE_IMAGE_H */ |