From 9c397af0dabfff7177bcb76409af5b8f9ae608cf Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 27 Apr 2017 17:19:58 -0400
Subject: [PATCH 1/4] --opengl-backend: support multiple backends
Will attempt each backend specified in order. The x11 backend is still
preferred, even on Wayland, but the user can now use
--opengl-backend=wayland,x11 to prefer wayland and fall back to x11 if
wayland is unavailable.
---
video/out/opengl/context.c | 66 +++++++++++++++++++++++++++++++++++++++++-----
video/out/opengl/context.h | 8 ++----
video/out/vo_opengl.c | 7 +++--
3 files changed, 64 insertions(+), 17 deletions(-)
diff --git a/video/out/opengl/context.c b/video/out/opengl/context.c
index 72311e11fa..568bb662b8 100644
--- a/video/out/opengl/context.c
+++ b/video/out/opengl/context.c
@@ -89,6 +89,30 @@ static const struct mpgl_driver *const backends[] = {
#endif
};
+static bool get_desc(struct m_obj_desc *dst, int index)
+{
+ if (index >= MP_ARRAY_SIZE(backends) - 1)
+ return false;
+ const struct mpgl_driver *driver = backends[index];
+ *dst = (struct m_obj_desc) {
+ .name = driver->name,
+ .description = driver->name,
+ .priv_size = sizeof(struct mpgl_driver),
+ .p = driver,
+ };
+ return true;
+}
+
+// for backend option
+const struct m_obj_list mpgl_backend_list = {
+ .get_desc = get_desc,
+ .description = "OpenGL windowing backends",
+ .allow_unknown_entries = true,
+ .allow_disable_entries = true,
+ .allow_trailer = true,
+ .disallow_positional_parameters = true,
+};
+
// 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[] = {
@@ -100,7 +124,7 @@ const int mpgl_preferred_gl_versions[] = {
0
};
-int mpgl_find_backend(const char *name)
+static int mpgl_find_backend(const char *name)
{
if (name == NULL || strcmp(name, "auto") == 0)
return -1;
@@ -126,7 +150,7 @@ int mpgl_validate_backend_opt(struct mp_log *log, const struct m_option *opt,
return mpgl_find_backend(s) >= -1 ? 1 : M_OPT_INVALID;
}
-static void *get_native_display(void *pctx, const char *name)
+static void *get_native_display(const char *name)
{
MPGLContext *ctx = pctx;
if (!ctx->native_display_type || !name)
@@ -186,11 +210,41 @@ cleanup:
// 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 *mpgl_init(struct vo *vo, struct m_obj_settings *backend_list, int vo_flags)
{
MPGLContext *ctx = NULL;
- int index = mpgl_find_backend(backend_name);
- if (index == -1) {
+ if (backend_list && backend_list[0].name) {
+ int n;
+ for (n = 0; backend_list[n].name; n++) {
+ // Something like "--opengl-backend=name," allows fallback to autoprobing.
+ int index = mpgl_find_backend(backend_list[n].name);
+ if (index == -1 || strlen(backend_list[n].name) == 0)
+ goto autoprobe;
+ if (index == -2) {
+ MP_FATAL(vo, "Unknown opengl backend '%s'\n", backend_list[n].name);
+ exit(-2);
+ return NULL;
+ }
+ ctx = init_backend(vo, backends[index], true, vo_flags);
+ if (ctx)
+ break;
+ }
+ if (!ctx && !vo->probing) {
+ // Now try with probing off
+ for (n = 0; backend_list[n].name; n++) {
+ int index = mpgl_find_backend(backend_list[n].name);
+ ctx = init_backend(vo, backends[index], false, vo_flags);
+ if (ctx)
+ break;
+ }
+ if (!ctx) {
+ // Backend explicitly requested, but unable to fulfill
+ return NULL;
+ }
+ }
+ }
+ if (!ctx) {
+autoprobe:
for (int n = 0; n < MP_ARRAY_SIZE(backends); n++) {
ctx = init_backend(vo, backends[n], true, vo_flags);
if (ctx)
@@ -204,8 +258,6 @@ MPGLContext *mpgl_init(struct vo *vo, const char *backend_name, int vo_flags)
break;
}
}
- } else if (index >= 0) {
- ctx = init_backend(vo, backends[index], false, vo_flags);
}
return ctx;
}
diff --git a/video/out/opengl/context.h b/video/out/opengl/context.h
index 229c5ef54f..7cf439c1a0 100644
--- a/video/out/opengl/context.h
+++ b/video/out/opengl/context.h
@@ -100,17 +100,13 @@ typedef struct MPGLContext {
void *priv;
} MPGLContext;
-MPGLContext *mpgl_init(struct vo *vo, const char *backend_name, int vo_flags);
+MPGLContext *mpgl_init(struct vo *vo, struct m_obj_settings *backend_list, int vo_flags);
void mpgl_uninit(MPGLContext *ctx);
int mpgl_reconfig_window(struct MPGLContext *ctx);
int mpgl_control(struct MPGLContext *ctx, int *events, int request, void *arg);
void mpgl_start_frame(struct MPGLContext *ctx);
void mpgl_swap_buffers(struct MPGLContext *ctx);
-int mpgl_find_backend(const char *name);
-
-struct m_option;
-int mpgl_validate_backend_opt(struct mp_log *log, const struct m_option *opt,
- struct bstr name, struct bstr param);
+extern const struct m_obj_list mpgl_backend_list;
#endif
diff --git a/video/out/vo_opengl.c b/video/out/vo_opengl.c
index 9b3f944e21..91e55b3b2f 100644
--- a/video/out/vo_opengl.c
+++ b/video/out/vo_opengl.c
@@ -55,7 +55,7 @@ struct vo_opengl_opts {
int allow_sw;
int swap_interval;
int vsync_fences;
- char *backend;
+ struct m_obj_settings *backend_list;
int es;
int pattern[2];
};
@@ -383,7 +383,7 @@ static int preinit(struct vo *vo)
if (p->opts.allow_sw)
vo_flags |= VOFLAG_SW;
- p->glctx = mpgl_init(vo, p->opts.backend, vo_flags);
+ p->glctx = mpgl_init(vo, p->opts.backend_list, vo_flags);
if (!p->glctx)
goto err_out;
p->gl = p->glctx->gl;
@@ -438,8 +438,7 @@ const struct vo_driver video_out_opengl = {
OPT_FLAG("opengl-waitvsync", opts.waitvsync, 0),
OPT_INT("opengl-swapinterval", opts.swap_interval, 0),
OPT_FLAG("opengl-debug", opts.use_gl_debug, 0),
- OPT_STRING_VALIDATE("opengl-backend", opts.backend, 0,
- mpgl_validate_backend_opt),
+ OPT_SETTINGSLIST("opengl-backend", opts.backend_list, 0, &mpgl_backend_list ),
OPT_FLAG("opengl-sw", opts.allow_sw, 0),
OPT_CHOICE("opengl-es", opts.es, 0, ({"no", -1}, {"auto", 0},
{"yes", 1}, {"force2", 2})),
From 4e89fae50f70d065ff8ffee40aa8dffe8131210e Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 27 Apr 2017 17:51:39 -0400
Subject: [PATCH 2/4] Update mpv.1
---
DOCS/man/options.rst | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 925c501881..5d57720e3d 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -4480,9 +4480,10 @@ The following video options are currently all specific to ``--vo=opengl`` and
Continue even if a software renderer is detected.
``--opengl-backend=<sys>``
- The value ``auto`` (the default) selects the windowing backend. You can
- also pass ``help`` to get a complete list of compiled in backends (sorted
- by autoprobe order).
+ Specify a priority list of windowing backends to use with OpenGL. The value
+ ``auto`` (the default) automatically probes for the most suitable backend.
+ You can also pass ``help`` to get a complete list of compiled in backends
+ (sorted by autoprobe order).
auto
auto-select (default)
From 3fb437fa09ebf20635c02f41ce0e3d13423d1454 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 27 Apr 2017 20:12:51 -0400
Subject: [PATCH 3/4] Let options handle invalid backends
---
video/out/opengl/context.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/video/out/opengl/context.c b/video/out/opengl/context.c
index 568bb662b8..8aa44b67cc 100644
--- a/video/out/opengl/context.c
+++ b/video/out/opengl/context.c
@@ -91,6 +91,14 @@ static const struct mpgl_driver *const backends[] = {
static bool get_desc(struct m_obj_desc *dst, int index)
{
+ if (index == 0) {
+ *dst = (struct m_obj_desc) {
+ .name = "auto",
+ .description = "automatically select most suitable backend"
+ };
+ return true;
+ }
+ index--;
if (index >= MP_ARRAY_SIZE(backends) - 1)
return false;
const struct mpgl_driver *driver = backends[index];
@@ -107,8 +115,6 @@ static bool get_desc(struct m_obj_desc *dst, int index)
const struct m_obj_list mpgl_backend_list = {
.get_desc = get_desc,
.description = "OpenGL windowing backends",
- .allow_unknown_entries = true,
- .allow_disable_entries = true,
.allow_trailer = true,
.disallow_positional_parameters = true,
};
@@ -218,13 +224,8 @@ MPGLContext *mpgl_init(struct vo *vo, struct m_obj_settings *backend_list, int v
for (n = 0; backend_list[n].name; n++) {
// Something like "--opengl-backend=name," allows fallback to autoprobing.
int index = mpgl_find_backend(backend_list[n].name);
- if (index == -1 || strlen(backend_list[n].name) == 0)
+ if (index < 0 || strlen(backend_list[n].name) == 0)
goto autoprobe;
- if (index == -2) {
- MP_FATAL(vo, "Unknown opengl backend '%s'\n", backend_list[n].name);
- exit(-2);
- return NULL;
- }
ctx = init_backend(vo, backends[index], true, vo_flags);
if (ctx)
break;
From 605785c4846ecaa969309f7fb63cfba59751ba61 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Fri, 26 May 2017 15:31:24 -0400
Subject: [PATCH 4/4] Updates following HEAD
---
video/out/opengl/context.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/video/out/opengl/context.c b/video/out/opengl/context.c
index 8aa44b67cc..4cc0829c90 100644
--- a/video/out/opengl/context.c
+++ b/video/out/opengl/context.c
@@ -141,22 +141,7 @@ static int mpgl_find_backend(const char *name)
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(const char *name)
+static void *get_native_display(void *pctx, const char *name)
{
MPGLContext *ctx = pctx;
if (!ctx->native_display_type || !name)