1 /**************************************************************************
2 *
3 * Copyright 2011 Christian König.
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 vl_video_buffer_h
29 #define vl_video_buffer_h
30
31 #include "pipe/p_context.h"
32 #include "pipe/p_video_codec.h"
33
34 #include "vl_defines.h"
35
36 /**
37 * implementation of a planar ycbcr buffer
38 */
39
40 /* planar buffer for vl data upload and manipulation */
41 struct vl_video_buffer
42 {
43 struct pipe_video_buffer base;
44 unsigned num_planes;
45 struct pipe_resource *resources[VL_NUM_COMPONENTS];
46 struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
47 struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
48 struct pipe_surface *surfaces[VL_MAX_SURFACES];
49 };
50
51 static inline void
vl_video_buffer_adjust_size(unsigned * width,unsigned * height,unsigned plane,enum pipe_video_chroma_format chroma_format,bool interlaced)52 vl_video_buffer_adjust_size(unsigned *width, unsigned *height, unsigned plane,
53 enum pipe_video_chroma_format chroma_format,
54 bool interlaced)
55 {
56 if (interlaced) {
57 *height /= 2;
58 }
59 if (plane > 0) {
60 if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
61 *width /= 2;
62 *height /= 2;
63 } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
64 *width /= 2;
65 }
66 }
67 }
68
69 /**
70 * get subformats for each plane
71 */
72 const enum pipe_format *
73 vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format);
74
75 /**
76 * get YUV plane order
77 */
78 const unsigned *
79 vl_video_buffer_plane_order(enum pipe_format format);
80
81 /**
82 * get maximum size of video buffers
83 */
84 unsigned
85 vl_video_buffer_max_size(struct pipe_screen *screen);
86
87 /**
88 * check if video buffer format is supported for a codec/profile
89 * can be used as default implementation of screen->is_video_format_supported
90 */
91 boolean
92 vl_video_buffer_is_format_supported(struct pipe_screen *screen,
93 enum pipe_format format,
94 enum pipe_video_profile profile,
95 enum pipe_video_entrypoint entrypoint);
96
97 /*
98 * set the associated data for the given video buffer
99 */
100 void
101 vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
102 struct pipe_video_codec *vcodec,
103 void *associated_data,
104 void (*destroy_associated_data)(void *));
105
106 /*
107 * get the associated data for the given video buffer
108 */
109 void *
110 vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
111 struct pipe_video_codec *vcodec);
112
113 /**
114 * fill a resource template for the given plane
115 */
116 void
117 vl_video_buffer_template(struct pipe_resource *templ,
118 const struct pipe_video_buffer *templat,
119 enum pipe_format resource_format,
120 unsigned depth, unsigned array_size,
121 unsigned usage, unsigned plane);
122
123 /**
124 * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
125 */
126 struct pipe_video_buffer *
127 vl_video_buffer_create(struct pipe_context *pipe,
128 const struct pipe_video_buffer *templat);
129
130 /**
131 * extended create function, gets depth, array_size, usage and formats for each plane seperately
132 */
133 struct pipe_video_buffer *
134 vl_video_buffer_create_ex(struct pipe_context *pipe,
135 const struct pipe_video_buffer *templat,
136 const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
137 unsigned depth, unsigned array_size, unsigned usage);
138
139 /**
140 * even more extended create function, provide the pipe_resource for each plane
141 */
142 struct pipe_video_buffer *
143 vl_video_buffer_create_ex2(struct pipe_context *pipe,
144 const struct pipe_video_buffer *templat,
145 struct pipe_resource *resources[VL_NUM_COMPONENTS]);
146
147 #endif /* vl_video_buffer_h */
148