| /* |
| * 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 <laanwj@gmail.com> |
| */ |
| |
| #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 == 8) { |
| DO_TILE(uint64_t) |
| } else 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 == 8) { |
| DO_UNTILE(uint64_t) |
| } else 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); |
| } |
| } |