1/**************************************************************************
2 *
3 * Copyright 2007 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#ifndef P_TILE_H
29#define P_TILE_H
30
31#include "pipe/p_compiler.h"
32#include "pipe/p_format.h"
33#include "pipe/p_state.h"
34
35struct pipe_context;
36struct pipe_transfer;
37
38/**
39 * Clip tile against transfer dims.
40 *
41 * XXX: this only clips width and height!
42 *
43 * \return TRUE if tile is totally clipped, FALSE otherwise
44 */
45static inline boolean
46u_clip_tile(uint x, uint y, uint *w, uint *h, const struct pipe_box *box)
47{
48   if ((int) x >= box->width)
49      return TRUE;
50   if ((int) y >= box->height)
51      return TRUE;
52   if ((int) (x + *w) > box->width)
53      *w = box->width - x;
54   if ((int) (y + *h) > box->height)
55      *h = box->height - y;
56   return FALSE;
57}
58
59#ifdef __cplusplus
60extern "C" {
61#endif
62
63void
64pipe_get_tile_raw(struct pipe_transfer *pt,
65                  const void *src,
66                  uint x, uint y, uint w, uint h,
67                  void *p, int dst_stride);
68
69void
70pipe_put_tile_raw(struct pipe_transfer *pt,
71                  void *dst,
72                  uint x, uint y, uint w, uint h,
73                  const void *p, int src_stride);
74
75
76void
77pipe_get_tile_rgba(struct pipe_transfer *pt,
78                   const void *src,
79                   uint x, uint y, uint w, uint h,
80                   enum pipe_format format,
81                   void *dst);
82
83void
84pipe_put_tile_rgba(struct pipe_transfer *pt,
85                   void *dst,
86                   uint x, uint y, uint w, uint h,
87                   enum pipe_format format,
88                   const void *src);
89
90#ifdef __cplusplus
91}
92#endif
93
94#endif
95