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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* common OpenGL routines
*
* copyleft (C) 2005-2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
* Special thanks go to the xine team and Matthias Hopf, whose video_out_opengl.c
* gave me lots of good ideas.
*
* 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 <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
#include <assert.h>
#include "context.h"
#include "common/common.h"
#include "options/options.h"
#include "options/m_option.h"
extern const struct mpgl_driver mpgl_driver_x11;
extern const struct mpgl_driver mpgl_driver_x11egl;
extern const struct mpgl_driver mpgl_driver_x11_probe;
extern const struct mpgl_driver mpgl_driver_drm_egl;
extern const struct mpgl_driver mpgl_driver_drm;
extern const struct mpgl_driver mpgl_driver_cocoa;
extern const struct mpgl_driver mpgl_driver_wayland;
extern const struct mpgl_driver mpgl_driver_w32;
extern const struct mpgl_driver mpgl_driver_angle;
extern const struct mpgl_driver mpgl_driver_angle_es2;
extern const struct mpgl_driver mpgl_driver_dxinterop;
extern const struct mpgl_driver mpgl_driver_rpi;
extern const struct mpgl_driver mpgl_driver_mali;
extern const struct mpgl_driver mpgl_driver_vdpauglx;
static const struct mpgl_driver *const backends[] = {
#if HAVE_RPI
&mpgl_driver_rpi,
#endif
#if HAVE_GL_COCOA
&mpgl_driver_cocoa,
#endif
#if HAVE_EGL_ANGLE
&mpgl_driver_angle,
#endif
#if HAVE_GL_WIN32
&mpgl_driver_w32,
#endif
#if HAVE_GL_DXINTEROP
&mpgl_driver_dxinterop,
#endif
#if HAVE_GL_X11
&mpgl_driver_x11_probe,
#endif
#if HAVE_EGL_X11
&mpgl_driver_x11egl,
#endif
#if HAVE_GL_X11
&mpgl_driver_x11,
#endif
#if HAVE_GL_WAYLAND
&mpgl_driver_wayland,
#endif
#if HAVE_EGL_DRM
&mpgl_driver_drm,
&mpgl_driver_drm_egl,
#endif
#if HAVE_MALI_FBDEV
&mpgl_driver_mali,
#endif
#if HAVE_VDPAU_GL_X11
&mpgl_driver_vdpauglx,
#endif
};
// 0-terminated list of desktop GL versions a backend should try to
// initialize. The first entry is the most preferred version.
const int mpgl_preferred_gl_versions[] = {
330,
320,
310,
300,
210,
0
};
int mpgl_find_backend(const char *name)
{
if (name == NULL || strcmp(name, "auto") == 0)
return -1;
for (int n = 0; n < MP_ARRAY_SIZE(backends); n++) {
if (strcmp(backends[n]->name, name) == 0)
return n;
}
return -2;
}
int mpgl_validate_backend_opt(struct mp_log *log, const struct m_option *opt,
struct bstr name, struct bstr param)
{
if (bstr_equals0(param, "help")) {
mp_info(log, "OpenGL windowing backends:\n");
mp_info(log, " auto (autodetect)\n");
for (int n = 0; n < MP_ARRAY_SIZE(backends); n++)
mp_info(log, " %s\n", backends[n]->name);
return M_OPT_EXIT;
}
char s[20];
snprintf(s, sizeof(s), "%.*s", BSTR_P(param));
return mpgl_find_backend(s) >= -1 ? 1 : M_OPT_INVALID;
}
static void *get_native_display(void *pctx, const char *name)
{
MPGLContext *ctx = pctx;
if (!ctx->native_display_type || !name)
return NULL;
return strcmp(ctx->native_display_type, name) == 0 ? ctx->native_display : NULL;
}
static MPGLContext *init_backend(struct vo *vo, const struct mpgl_driver *driver,
bool probing, int vo_flags)
{
MPGLContext *ctx = talloc_ptrtype(NULL, ctx);
*ctx = (MPGLContext) {
.gl = talloc_zero(ctx, GL),
.vo = vo,
.global = vo->global,
.driver = driver,
.log = vo->log,
};
if (probing)
vo_flags |= VOFLAG_PROBING;
bool old_probing = vo->probing;
vo->probing = probing; // hack; kill it once backends are separate
MP_VERBOSE(vo, "Initializing OpenGL backend '%s'\n", ctx->driver->name);
ctx->priv = talloc_zero_size(ctx, ctx->driver->priv_size);
if (ctx->driver->init(ctx, vo_flags) < 0) {
vo->probing = old_probing;
talloc_free(ctx);
return NULL;
}
vo->probing = old_probing;
if (!ctx->gl->version && !ctx->gl->es)
goto cleanup;
if (probing && ctx->gl->es && (vo_flags & VOFLAG_NO_GLES)) {
MP_VERBOSE(ctx->vo, "Skipping GLES backend.\n");
goto cleanup;
}
if (ctx->gl->mpgl_caps & MPGL_CAP_SW) {
MP_WARN(ctx->vo, "Suspected software renderer or indirect context.\n");
if (vo->probing && !(vo_flags & VOFLAG_SW))
goto cleanup;
}
ctx->gl->debug_context = !!(vo_flags & VOFLAG_GL_DEBUG);
ctx->gl->get_native_display_ctx = ctx;
ctx->gl->get_native_display = get_native_display;
return ctx;
cleanup:
mpgl_uninit(ctx);
return NULL;
}
// Create a VO window and create a GL context on it.
// vo_flags: passed to the backend's create window function
MPGLContext *mpgl_init(struct vo *vo, const char *backend_name, int vo_flags)
{
MPGLContext *ctx = NULL;
int index = mpgl_find_backend(backend_name);
if (index == -1) {
for (int n = 0; n < MP_ARRAY_SIZE(backends); n++) {
ctx = init_backend(vo, backends[n], true, vo_flags);
if (ctx)
break;
}
// VO forced, but no backend is ok => force the first that works at all
if (!ctx && !vo->probing) {
for (int n = 0; n < MP_ARRAY_SIZE(backends); n++) {
ctx = init_backend(vo, backends[n], false, vo_flags);
if (ctx)
break;
}
}
} else if (index >= 0) {
ctx = init_backend(vo, backends[index], false, vo_flags);
}
return ctx;
}
int mpgl_reconfig_window(struct MPGLContext *ctx)
{
return ctx->driver->reconfig(ctx);
}
int mpgl_control(struct MPGLContext *ctx, int *events, int request, void *arg)
{
return ctx->driver->control(ctx, events, request, arg);
}
void mpgl_start_frame(struct MPGLContext *ctx)
{
if (ctx->driver->start_frame)
ctx->driver->start_frame(ctx);
}
void mpgl_swap_buffers(struct MPGLContext *ctx)
{
ctx->driver->swap_buffers(ctx);
}
void mpgl_uninit(MPGLContext *ctx)
{
if (ctx)
ctx->driver->uninit(ctx);
talloc_free(ctx);
}
|
