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 = align(*height, 2) / 2;
58 }
59 if (plane > 0) {
60 if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
61 *width = align(*width, 2) / 2;
62 *height = align(*height, 2) / 2;
63 } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
64 *width = align(*width, 2) / 2;
65 }
66 }
67 }
68
69 /**
70 * get subformats for each plane
71 */
72 void
73 vl_get_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format,
74 enum pipe_format out_format[VL_NUM_COMPONENTS]);
75
76 /**
77 * get YUV plane order
78 */
79 const unsigned *
80 vl_video_buffer_plane_order(enum pipe_format format);
81
82 /**
83 * get maximum size of video buffers
84 */
85 unsigned
86 vl_video_buffer_max_size(struct pipe_screen *screen);
87
88 /**
89 * check if video buffer format is supported for a codec/profile
90 * can be used as default implementation of screen->is_video_format_supported
91 */
92 bool
93 vl_video_buffer_is_format_supported(struct pipe_screen *screen,
94 enum pipe_format format,
95 enum pipe_video_profile profile,
96 enum pipe_video_entrypoint entrypoint);
97
98 /*
99 * set the associated data for the given video buffer
100 */
101 void
102 vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
103 struct pipe_video_codec *vcodec,
104 void *associated_data,
105 void (*destroy_associated_data)(void *));
106
107 /*
108 * get the associated data for the given video buffer
109 */
110 void *
111 vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
112 struct pipe_video_codec *vcodec);
113
114 /**
115 * fill a resource template for the given plane
116 */
117 void
118 vl_video_buffer_template(struct pipe_resource *templ,
119 const struct pipe_video_buffer *templat,
120 enum pipe_format resource_format,
121 unsigned depth, unsigned array_size,
122 unsigned usage, unsigned plane,
123 enum pipe_video_chroma_format chroma_format);
124
125 /**
126 * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
127 */
128 struct pipe_video_buffer *
129 vl_video_buffer_create(struct pipe_context *pipe,
130 const struct pipe_video_buffer *templat);
131
132 /**
133 * extended create function, gets depth, array_size, usage and formats for each plane seperately
134 */
135 struct pipe_video_buffer *
136 vl_video_buffer_create_ex(struct pipe_context *pipe,
137 const struct pipe_video_buffer *templat,
138 const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
139 unsigned depth, unsigned array_size, unsigned usage,
140 enum pipe_video_chroma_format chroma_format);
141
142 /**
143 * even more extended create function, provide the pipe_resource for each plane
144 */
145 struct pipe_video_buffer *
146 vl_video_buffer_create_ex2(struct pipe_context *pipe,
147 const struct pipe_video_buffer *templat,
148 struct pipe_resource *resources[VL_NUM_COMPONENTS]);
149
150 /* Create pipe_video_buffer by using resource_create with planar formats. */
151 struct pipe_video_buffer *
152 vl_video_buffer_create_as_resource(struct pipe_context *pipe,
153 const struct pipe_video_buffer *tmpl);
154
155 #endif /* vl_video_buffer_h */
156