mpegvideo: split ff_draw_horiz_band().
[libav.git] / libavcodec / vaapi.c
1 /*
2 * Video Acceleration API (video decoding)
3 * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
4 *
5 * Copyright (C) 2008-2009 Splitted-Desktop Systems
6 *
7 * This file is part of Libav.
8 *
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "vaapi_internal.h"
25
26 /**
27 * @addtogroup VAAPI_Decoding
28 *
29 * @{
30 */
31
32 static void destroy_buffers(VADisplay display, VABufferID *buffers, unsigned int n_buffers)
33 {
34 unsigned int i;
35 for (i = 0; i < n_buffers; i++) {
36 if (buffers[i]) {
37 vaDestroyBuffer(display, buffers[i]);
38 buffers[i] = 0;
39 }
40 }
41 }
42
43 static int render_picture(struct vaapi_context *vactx, VASurfaceID surface)
44 {
45 VABufferID va_buffers[3];
46 unsigned int n_va_buffers = 0;
47
48 vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
49 va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
50
51 if (vactx->iq_matrix_buf_id) {
52 vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id);
53 va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
54 }
55
56 if (vactx->bitplane_buf_id) {
57 vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
58 va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
59 }
60
61 if (vaBeginPicture(vactx->display, vactx->context_id,
62 surface) != VA_STATUS_SUCCESS)
63 return -1;
64
65 if (vaRenderPicture(vactx->display, vactx->context_id,
66 va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
67 return -1;
68
69 if (vaRenderPicture(vactx->display, vactx->context_id,
70 vactx->slice_buf_ids,
71 vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
72 return -1;
73
74 if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
75 return -1;
76
77 return 0;
78 }
79
80 static int commit_slices(struct vaapi_context *vactx)
81 {
82 VABufferID *slice_buf_ids;
83 VABufferID slice_param_buf_id, slice_data_buf_id;
84
85 if (vactx->slice_count == 0)
86 return 0;
87
88 slice_buf_ids =
89 av_fast_realloc(vactx->slice_buf_ids,
90 &vactx->slice_buf_ids_alloc,
91 (vactx->n_slice_buf_ids + 2) * sizeof(slice_buf_ids[0]));
92 if (!slice_buf_ids)
93 return -1;
94 vactx->slice_buf_ids = slice_buf_ids;
95
96 slice_param_buf_id = 0;
97 if (vaCreateBuffer(vactx->display, vactx->context_id,
98 VASliceParameterBufferType,
99 vactx->slice_param_size,
100 vactx->slice_count, vactx->slice_params,
101 &slice_param_buf_id) != VA_STATUS_SUCCESS)
102 return -1;
103 vactx->slice_count = 0;
104
105 slice_data_buf_id = 0;
106 if (vaCreateBuffer(vactx->display, vactx->context_id,
107 VASliceDataBufferType,
108 vactx->slice_data_size,
109 1, (void *)vactx->slice_data,
110 &slice_data_buf_id) != VA_STATUS_SUCCESS)
111 return -1;
112 vactx->slice_data = NULL;
113 vactx->slice_data_size = 0;
114
115 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_param_buf_id;
116 slice_buf_ids[vactx->n_slice_buf_ids++] = slice_data_buf_id;
117 return 0;
118 }
119
120 static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id)
121 {
122 void *data = NULL;
123
124 *buf_id = 0;
125 if (vaCreateBuffer(vactx->display, vactx->context_id,
126 type, size, 1, NULL, buf_id) == VA_STATUS_SUCCESS)
127 vaMapBuffer(vactx->display, *buf_id, &data);
128
129 return data;
130 }
131
132 void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size)
133 {
134 return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
135 }
136
137 void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size)
138 {
139 return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
140 }
141
142 uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size)
143 {
144 return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
145 }
146
147 VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size)
148 {
149 uint8_t *slice_params;
150 VASliceParameterBufferBase *slice_param;
151
152 if (!vactx->slice_data)
153 vactx->slice_data = buffer;
154 if (vactx->slice_data + vactx->slice_data_size != buffer) {
155 if (commit_slices(vactx) < 0)
156 return NULL;
157 vactx->slice_data = buffer;
158 }
159
160 slice_params =
161 av_fast_realloc(vactx->slice_params,
162 &vactx->slice_params_alloc,
163 (vactx->slice_count + 1) * vactx->slice_param_size);
164 if (!slice_params)
165 return NULL;
166 vactx->slice_params = slice_params;
167
168 slice_param = (VASliceParameterBufferBase *)(slice_params + vactx->slice_count * vactx->slice_param_size);
169 slice_param->slice_data_size = size;
170 slice_param->slice_data_offset = vactx->slice_data_size;
171 slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
172
173 vactx->slice_count++;
174 vactx->slice_data_size += size;
175 return slice_param;
176 }
177
178 int ff_vaapi_common_end_frame(MpegEncContext *s)
179 {
180 struct vaapi_context * const vactx = s->avctx->hwaccel_context;
181 int ret = -1;
182
183 av_dlog(s->avctx, "ff_vaapi_common_end_frame()\n");
184
185 if (commit_slices(vactx) < 0)
186 goto done;
187 if (vactx->n_slice_buf_ids > 0) {
188 if (render_picture(vactx, ff_vaapi_get_surface_id(s->current_picture_ptr)) < 0)
189 goto done;
190 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
191 }
192 ret = 0;
193
194 done:
195 destroy_buffers(vactx->display, &vactx->pic_param_buf_id, 1);
196 destroy_buffers(vactx->display, &vactx->iq_matrix_buf_id, 1);
197 destroy_buffers(vactx->display, &vactx->bitplane_buf_id, 1);
198 destroy_buffers(vactx->display, vactx->slice_buf_ids, vactx->n_slice_buf_ids);
199 av_freep(&vactx->slice_buf_ids);
200 av_freep(&vactx->slice_params);
201 vactx->n_slice_buf_ids = 0;
202 vactx->slice_buf_ids_alloc = 0;
203 vactx->slice_count = 0;
204 vactx->slice_params_alloc = 0;
205 return ret;
206 }
207
208 /* @} */