1/**************************************************************************
2 *
3 * Copyright 2009 Younes Manton.
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#include "pipe/p_video_codec.h"
29
30#include "util/u_video.h"
31
32#include "vl_decoder.h"
33#include "vl_mpeg12_decoder.h"
34
35bool
36vl_profile_supported(struct pipe_screen *screen, enum pipe_video_profile profile,
37                     enum pipe_video_entrypoint entrypoint)
38{
39   assert(screen);
40   switch (u_reduce_video_profile(profile)) {
41      case PIPE_VIDEO_FORMAT_MPEG12:
42         return entrypoint != PIPE_VIDEO_ENTRYPOINT_ENCODE;
43      default:
44         return false;
45   }
46}
47
48int
49vl_level_supported(struct pipe_screen *screen, enum pipe_video_profile profile)
50{
51   assert(screen);
52   switch (profile) {
53      case PIPE_VIDEO_PROFILE_MPEG1:
54         return 0;
55      case PIPE_VIDEO_PROFILE_MPEG2_SIMPLE:
56      case PIPE_VIDEO_PROFILE_MPEG2_MAIN:
57         return 3;
58      default:
59         return 0;
60   }
61}
62
63struct pipe_video_codec *
64vl_create_decoder(struct pipe_context *pipe,
65                  const struct pipe_video_codec *templat)
66{
67   unsigned width = templat->width, height = templat->height;
68   struct pipe_video_codec temp;
69   bool pot_buffers;
70
71   assert(pipe);
72   assert(width > 0 && height > 0);
73
74   pot_buffers = !pipe->screen->get_video_param
75   (
76      pipe->screen,
77      templat->profile,
78      templat->entrypoint,
79      PIPE_VIDEO_CAP_NPOT_TEXTURES
80   );
81
82   temp = *templat;
83   temp.width = pot_buffers ? util_next_power_of_two(width) : align(width, VL_MACROBLOCK_WIDTH);
84   temp.height = pot_buffers ? util_next_power_of_two(height) : align(height, VL_MACROBLOCK_HEIGHT);
85
86   switch (u_reduce_video_profile(temp.profile)) {
87      case PIPE_VIDEO_FORMAT_MPEG12:
88         return vl_create_mpeg12_decoder(pipe, &temp);
89
90      default:
91         return NULL;
92   }
93   return NULL;
94}
95