Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /************************************************************************** |
| 2 | * |
||
| 3 | * Copyright 2009 VMware, Inc. |
||
| 4 | * All Rights Reserved. |
||
| 5 | * |
||
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 7 | * copy of this software and associated documentation files (the |
||
| 8 | * "Software"), to deal in the Software without restriction, including |
||
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
||
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
||
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
||
| 12 | * the following conditions: |
||
| 13 | * |
||
| 14 | * The above copyright notice and this permission notice (including the |
||
| 15 | * next paragraph) shall be included in all copies or substantial portions |
||
| 16 | * of the Software. |
||
| 17 | * |
||
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
||
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
||
| 21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
||
| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
||
| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
||
| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 25 | * |
||
| 26 | **************************************************************************/ |
||
| 27 | |||
| 28 | /** |
||
| 29 | * Functions for converting tiled data to linear and vice versa. |
||
| 30 | */ |
||
| 31 | |||
| 32 | |||
| 33 | #ifndef U_LINEAR_H |
||
| 34 | #define U_LINEAR_H |
||
| 35 | |||
| 36 | #include "pipe/p_compiler.h" |
||
| 37 | #include "pipe/p_format.h" |
||
| 38 | |||
| 39 | struct u_linear_format_block |
||
| 40 | { |
||
| 41 | /** Block size in bytes */ |
||
| 42 | unsigned size; |
||
| 43 | |||
| 44 | /** Block width in pixels */ |
||
| 45 | unsigned width; |
||
| 46 | |||
| 47 | /** Block height in pixels */ |
||
| 48 | unsigned height; |
||
| 49 | }; |
||
| 50 | |||
| 51 | |||
| 52 | struct pipe_tile_info |
||
| 53 | { |
||
| 54 | unsigned size; |
||
| 55 | unsigned stride; |
||
| 56 | |||
| 57 | /* The number of tiles */ |
||
| 58 | unsigned tiles_x; |
||
| 59 | unsigned tiles_y; |
||
| 60 | |||
| 61 | /* size of each tile expressed in blocks */ |
||
| 62 | unsigned cols; |
||
| 63 | unsigned rows; |
||
| 64 | |||
| 65 | /* Describe the tile in pixels */ |
||
| 66 | struct u_linear_format_block tile; |
||
| 67 | |||
| 68 | /* Describe each block within the tile */ |
||
| 69 | struct u_linear_format_block block; |
||
| 70 | }; |
||
| 71 | |||
| 72 | void pipe_linear_to_tile(size_t src_stride, const void *src_ptr, |
||
| 73 | struct pipe_tile_info *t, void *dst_ptr); |
||
| 74 | |||
| 75 | void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr, |
||
| 76 | size_t dst_stride, void *dst_ptr); |
||
| 77 | |||
| 78 | /** |
||
| 79 | * Convenience function to fillout a pipe_tile_info struct. |
||
| 80 | * @t info to fill out. |
||
| 81 | * @block block info about pixel layout |
||
| 82 | * @tile_width the width of the tile in pixels |
||
| 83 | * @tile_height the height of the tile in pixels |
||
| 84 | * @tiles_x number of tiles in x axis |
||
| 85 | * @tiles_y number of tiles in y axis |
||
| 86 | */ |
||
| 87 | void pipe_linear_fill_info(struct pipe_tile_info *t, |
||
| 88 | const struct u_linear_format_block *block, |
||
| 89 | unsigned tile_width, unsigned tile_height, |
||
| 90 | unsigned tiles_x, unsigned tiles_y); |
||
| 91 | |||
| 92 | static INLINE boolean pipe_linear_check_tile(const struct pipe_tile_info *t) |
||
| 93 | { |
||
| 94 | if (t->tile.size != t->block.size * t->cols * t->rows) |
||
| 95 | return FALSE; |
||
| 96 | |||
| 97 | if (t->stride != t->block.size * t->cols * t->tiles_x) |
||
| 98 | return FALSE; |
||
| 99 | |||
| 100 | if (t->size < t->stride * t->rows * t->tiles_y) |
||
| 101 | return FALSE; |
||
| 102 | |||
| 103 | return TRUE; |
||
| 104 | } |
||
| 105 | |||
| 106 | #endif /* U_LINEAR_H */ |