| /************************************************************************** |
| * |
| * Copyright 2009 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 VMWARE 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. |
| * |
| **************************************************************************/ |
| |
| /** |
| * Functions for converting tiled data to linear and vice versa. |
| */ |
| |
| |
| #include "util/u_debug.h" |
| #include "u_linear.h" |
| |
| void |
| pipe_linear_to_tile(size_t src_stride, const void *src_ptr, |
| struct pipe_tile_info *t, void *dst_ptr) |
| { |
| int x, y, z; |
| char *ptr; |
| size_t bytes = t->cols * t->block.size; |
| char *dst_ptr2 = (char *) dst_ptr; |
| |
| assert(pipe_linear_check_tile(t)); |
| |
| /* lets write lineary to the tiled buffer */ |
| for (y = 0; y < t->tiles_y; y++) { |
| for (x = 0; x < t->tiles_x; x++) { |
| /* this inner loop could be replace with SSE magic */ |
| ptr = (char*)src_ptr + src_stride * t->rows * y + bytes * x; |
| for (z = 0; z < t->rows; z++) { |
| memcpy(dst_ptr2, ptr, bytes); |
| dst_ptr2 += bytes; |
| ptr += src_stride; |
| } |
| } |
| } |
| } |
| |
| void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr, |
| size_t dst_stride, void *dst_ptr) |
| { |
| int x, y, z; |
| char *ptr; |
| size_t bytes = t->cols * t->block.size; |
| const char *src_ptr2 = (const char *) src_ptr; |
| |
| /* lets read lineary from the tiled buffer */ |
| for (y = 0; y < t->tiles_y; y++) { |
| for (x = 0; x < t->tiles_x; x++) { |
| /* this inner loop could be replace with SSE magic */ |
| ptr = (char*)dst_ptr + dst_stride * t->rows * y + bytes * x; |
| for (z = 0; z < t->rows; z++) { |
| memcpy(ptr, src_ptr2, bytes); |
| src_ptr2 += bytes; |
| ptr += dst_stride; |
| } |
| } |
| } |
| } |
| |
| void |
| pipe_linear_fill_info(struct pipe_tile_info *t, |
| const struct u_linear_format_block *block, |
| unsigned tile_width, unsigned tile_height, |
| unsigned tiles_x, unsigned tiles_y) |
| { |
| t->block = *block; |
| |
| t->tile.width = tile_width; |
| t->tile.height = tile_height; |
| t->cols = t->tile.width / t->block.width; |
| t->rows = t->tile.height / t->block.height; |
| t->tile.size = t->cols * t->rows * t->block.size; |
| |
| t->tiles_x = tiles_x; |
| t->tiles_y = tiles_y; |
| t->stride = t->cols * t->tiles_x * t->block.size; |
| t->size = t->tiles_x * t->tiles_y * t->tile.size; |
| } |