diff options
Diffstat (limited to 'src/gallium/drivers/etnaviv/etnaviv_tiling.c')
| -rw-r--r-- | src/gallium/drivers/etnaviv/etnaviv_tiling.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_tiling.c b/src/gallium/drivers/etnaviv/etnaviv_tiling.c new file mode 100644 index 00000000000..f4f85c1d6e6 --- /dev/null +++ b/src/gallium/drivers/etnaviv/etnaviv_tiling.c @@ -0,0 +1,96 @@ +/* + * Copyright (c) 2012-2015 Etnaviv Project + * + * 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 OR COPYRIGHT HOLDERS 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. + * + * Authors: + * Wladimir J. van der Laan <[email protected]> + */ + +#include "etnaviv_tiling.h" + +#include <stdint.h> +#include <stdio.h> + +#define TEX_TILE_WIDTH (4) +#define TEX_TILE_HEIGHT (4) +#define TEX_TILE_WORDS (TEX_TILE_WIDTH * TEX_TILE_HEIGHT) + +#define DO_TILE(type) \ + src_stride /= sizeof(type); \ + dst_stride = (dst_stride * TEX_TILE_HEIGHT) / sizeof(type); \ + for (unsigned srcy = 0; srcy < height; ++srcy) { \ + unsigned dsty = basey + srcy; \ + unsigned ty = (dsty / TEX_TILE_HEIGHT) * dst_stride + \ + (dsty % TEX_TILE_HEIGHT) * TEX_TILE_WIDTH; \ + for (unsigned srcx = 0; srcx < width; ++srcx) { \ + unsigned dstx = basex + srcx; \ + ((type *)dest)[ty + (dstx / TEX_TILE_WIDTH) * TEX_TILE_WORDS + \ + (dstx % TEX_TILE_WIDTH)] = \ + ((type *)src)[srcy * src_stride + srcx]; \ + } \ + } + +#define DO_UNTILE(type) \ + src_stride = (src_stride * TEX_TILE_HEIGHT) / sizeof(type); \ + dst_stride /= sizeof(type); \ + for (unsigned dsty = 0; dsty < height; ++dsty) { \ + unsigned srcy = basey + dsty; \ + unsigned sy = (srcy / TEX_TILE_HEIGHT) * src_stride + \ + (srcy % TEX_TILE_HEIGHT) * TEX_TILE_WIDTH; \ + for (unsigned dstx = 0; dstx < width; ++dstx) { \ + unsigned srcx = basex + dstx; \ + ((type *)dest)[dsty * dst_stride + dstx] = \ + ((type *)src)[sy + (srcx / TEX_TILE_WIDTH) * TEX_TILE_WORDS + \ + (srcx % TEX_TILE_WIDTH)]; \ + } \ + } + +void +etna_texture_tile(void *dest, void *src, unsigned basex, unsigned basey, + unsigned dst_stride, unsigned width, unsigned height, + unsigned src_stride, unsigned elmtsize) +{ + if (elmtsize == 4) { + DO_TILE(uint32_t) + } else if (elmtsize == 2) { + DO_TILE(uint16_t) + } else if (elmtsize == 1) { + DO_TILE(uint8_t) + } else { + printf("etna_texture_tile: unhandled element size %i\n", elmtsize); + } +} + +void +etna_texture_untile(void *dest, void *src, unsigned basex, unsigned basey, + unsigned src_stride, unsigned width, unsigned height, + unsigned dst_stride, unsigned elmtsize) +{ + if (elmtsize == 4) { + DO_UNTILE(uint32_t); + } else if (elmtsize == 2) { + DO_UNTILE(uint16_t); + } else if (elmtsize == 1) { + DO_UNTILE(uint8_t); + } else { + printf("etna_texture_tile: unhandled element size %i\n", elmtsize); + } +} |