1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <IOSurface/IOSurface.h>
#include <CoreVideo/CoreVideo.h>
#include <OpenGL/OpenGL.h>
#include <OpenGL/CGLIOSurface.h>
#include <libavutil/hwcontext.h>
#include "config.h"
#include "video/mp_image_pool.h"
#include "video/vt.h"
#include "formats.h"
#include "hwdec.h"
struct priv {
struct mp_hwdec_ctx hwctx;
CVPixelBufferRef pbuf;
GLuint gl_planes[MP_MAX_PLANES];
struct gl_imgfmt_desc desc;
};
static bool check_hwdec(struct gl_hwdec *hw)
{
if (hw->gl->version < 300) {
MP_ERR(hw, "need >= OpenGL 3.0 for core rectangle texture support\n");
return false;
}
if (!CGLGetCurrentContext()) {
MP_ERR(hw, "need cocoa opengl backend to be active");
return false;
}
return true;
}
static int create(struct gl_hwdec *hw)
{
if (!check_hwdec(hw))
return -1;
struct priv *p = talloc_zero(hw, struct priv);
hw->priv = p;
hw->gl->GenTextures(MP_MAX_PLANES, p->gl_planes);
p->hwctx = (struct mp_hwdec_ctx){
.type = HWDEC_VIDEOTOOLBOX,
.download_image = mp_vt_download_image,
.ctx = &p->hwctx,
};
#if HAVE_VIDEOTOOLBOX_HWACCEL_NEW
av_hwdevice_ctx_create(&p->hwctx.av_device_ref, AV_HWDEVICE_TYPE_VIDEOTOOLBOX,
NULL, NULL, 0);
#endif
hwdec_devices_add(hw->devs, &p->hwctx);
return 0;
}
static int reinit(struct gl_hwdec *hw, struct mp_image_params *params)
{
struct priv *p = hw->priv;
assert(params->imgfmt == hw->driver->imgfmt);
if (!params->hw_subfmt) {
MP_ERR(hw, "Unsupported CVPixelBuffer format.\n");
return -1;
}
if (!gl_get_imgfmt_desc(hw->gl, params->hw_subfmt, &p->desc)) {
MP_ERR(hw, "Unsupported texture format.\n");
return -1;
}
params->imgfmt = params->hw_subfmt;
params->hw_subfmt = 0;
return 0;
}
static int map_frame(struct gl_hwdec *hw, struct mp_image *hw_image,
struct gl_hwdec_frame *out_frame)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
CVPixelBufferRelease(p->pbuf);
p->pbuf = (CVPixelBufferRef)hw_image->planes[3];
CVPixelBufferRetain(p->pbuf);
IOSurfaceRef surface = CVPixelBufferGetIOSurface(p->pbuf);
if (!surface) {
MP_ERR(hw, "CVPixelBuffer has no IOSurface\n");
return -1;
}
const bool planar = CVPixelBufferIsPlanar(p->pbuf);
const int planes = CVPixelBufferGetPlaneCount(p->pbuf);
assert((planar && planes == p->desc.num_planes) || p->desc.num_planes == 1);
GLenum gl_target = GL_TEXTURE_RECTANGLE;
for (int i = 0; i < p->desc.num_planes; i++) {
const struct gl_format *fmt = p->desc.planes[i];
gl->BindTexture(gl_target, p->gl_planes[i]);
CGLError err = CGLTexImageIOSurface2D(
CGLGetCurrentContext(), gl_target,
fmt->internal_format,
IOSurfaceGetWidthOfPlane(surface, i),
IOSurfaceGetHeightOfPlane(surface, i),
fmt->format, fmt->type, surface, i);
if (err != kCGLNoError)
MP_ERR(hw, "error creating IOSurface texture for plane %d: %s (%x)\n",
i, CGLErrorString(err), gl->GetError());
gl->BindTexture(gl_target, 0);
out_frame->planes[i] = (struct gl_hwdec_plane){
.gl_texture = p->gl_planes[i],
.gl_target = gl_target,
.tex_w = IOSurfaceGetWidthOfPlane(surface, i),
.tex_h = IOSurfaceGetHeightOfPlane(surface, i),
};
}
snprintf(out_frame->swizzle, sizeof(out_frame->swizzle), "%s",
p->desc.swizzle);
return 0;
}
static void destroy(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
CVPixelBufferRelease(p->pbuf);
gl->DeleteTextures(MP_MAX_PLANES, p->gl_planes);
av_buffer_unref(&p->hwctx.av_device_ref);
hwdec_devices_remove(hw->devs, &p->hwctx);
}
const struct gl_hwdec_driver gl_hwdec_videotoolbox = {
.name = "videotoolbox",
.api = HWDEC_VIDEOTOOLBOX,
.imgfmt = IMGFMT_VIDEOTOOLBOX,
.create = create,
.reinit = reinit,
.map_frame = map_frame,
.destroy = destroy,
};
|
