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
35 bool
vl_profile_supported(struct pipe_screen * screen,enum pipe_video_profile profile,enum pipe_video_entrypoint entrypoint)36 vl_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
48 int
vl_level_supported(struct pipe_screen * screen,enum pipe_video_profile profile)49 vl_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
63 struct pipe_video_codec *
vl_create_decoder(struct pipe_context * pipe,const struct pipe_video_codec * templat)64 vl_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