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 struct pipe_resource *resources[VL_NUM_COMPONENTS];
45 struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
46 struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
47 struct pipe_surface *surfaces[VL_MAX_SURFACES];
48 };
49
50 static inline void
vl_video_buffer_adjust_size(unsigned * width,unsigned * height,unsigned plane,enum pipe_video_chroma_format chroma_format,bool interlaced)51 vl_video_buffer_adjust_size(unsigned *width, unsigned *height, unsigned plane,
52 enum pipe_video_chroma_format chroma_format,
53 bool interlaced)
54 {
55 if (interlaced) {
56 *height = align(*height, 2) / 2;
57 }
58 if (plane > 0) {
59 if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
60 *width = align(*width, 2) / 2;
61 *height = align(*height, 2) / 2;
62 } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
63 *width = align(*width, 2) / 2;
64 } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_440) {
65 *height = align(*height, 2) / 2;
66 }
67 }
68 }
69
70 /**
71 * get subformats for each plane
72 */
73 void
74 vl_get_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format,
75 enum pipe_format out_format[VL_NUM_COMPONENTS]);
76
77 /**
78 * get YUV plane order
79 */
80 const unsigned *
81 vl_video_buffer_plane_order(enum pipe_format format);
82
83 /**
84 * get maximum size of video buffers
85 */
86 unsigned
87 vl_video_buffer_max_size(struct pipe_screen *screen);
88
89 /**
90 * check if video buffer format is supported for a codec/profile
91 * can be used as default implementation of screen->is_video_format_supported
92 */
93 bool
94 vl_video_buffer_is_format_supported(struct pipe_screen *screen,
95 enum pipe_format format,
96 enum pipe_video_profile profile,
97 enum pipe_video_entrypoint entrypoint);
98
99 /*
100 * set the associated data for the given video buffer
101 */
102 void
103 vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
104 struct pipe_video_codec *vcodec,
105 void *associated_data,
106 void (*destroy_associated_data)(void *));
107
108 /*
109 * get the associated data for the given video buffer
110 */
111 void *
112 vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
113 struct pipe_video_codec *vcodec);
114
115 /**
116 * fill a resource template for the given plane
117 */
118 void
119 vl_video_buffer_template(struct pipe_resource *templ,
120 const struct pipe_video_buffer *templat,
121 enum pipe_format resource_format,
122 unsigned depth, unsigned array_size,
123 unsigned usage, unsigned plane,
124 enum pipe_video_chroma_format chroma_format);
125
126 void
127 vl_video_buffer_destroy(struct pipe_video_buffer *buffer);
128
129 /**
130 * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
131 */
132 struct pipe_video_buffer *
133 vl_video_buffer_create(struct pipe_context *pipe,
134 const struct pipe_video_buffer *templat);
135
136 /**
137 * extended create function, gets depth, array_size, usage and formats for each plane seperately
138 */
139 struct pipe_video_buffer *
140 vl_video_buffer_create_ex(struct pipe_context *pipe,
141 const struct pipe_video_buffer *templat,
142 const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
143 unsigned depth, unsigned array_size, unsigned usage,
144 enum pipe_video_chroma_format chroma_format);
145
146 /**
147 * even more extended create function, provide the pipe_resource for each plane
148 */
149 struct pipe_video_buffer *
150 vl_video_buffer_create_ex2(struct pipe_context *pipe,
151 const struct pipe_video_buffer *templat,
152 struct pipe_resource *resources[VL_NUM_COMPONENTS]);
153
154 /* Create pipe_video_buffer by using resource_create with planar formats. */
155 struct pipe_video_buffer *
156 vl_video_buffer_create_as_resource(struct pipe_context *pipe,
157 const struct pipe_video_buffer *tmpl,
158 const uint64_t *modifiers,
159 int modifiers_count);
160
161 #endif /* vl_video_buffer_h */
162