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author | wm4 <wm4@nowhere> | 2013-03-04 00:38:04 +0100 |
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committer | Stefano Pigozzi <stefano.pigozzi@gmail.com> | 2013-05-12 15:27:54 +0200 |
commit | d0924ae5a87121d91d59259661dd262eb03becd6 (patch) | |
tree | 484a7d71bffcad37bd903755596121247b047848 /video/out/gl_common.c | |
parent | 4ee0d0882030aaf11b11386018c10a9e336c7c7d (diff) | |
download | mpv-d0924ae5a87121d91d59259661dd262eb03becd6.tar.bz2 mpv-d0924ae5a87121d91d59259661dd262eb03becd6.tar.xz |
gl_common: add some sort of locking API
Some OpenGL implementations on some platforms require that a context
is current only on one thread. For this reason, mpgl_lock() and
mpgl_unlock() take care of this as well for convenience.
Each backend that needs thread safety should provide it's own locking strategy
inside of `set_current`.
Diffstat (limited to 'video/out/gl_common.c')
-rw-r--r-- | video/out/gl_common.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/video/out/gl_common.c b/video/out/gl_common.c index 685258406a..39fb592df4 100644 --- a/video/out/gl_common.c +++ b/video/out/gl_common.c @@ -940,6 +940,33 @@ void mpgl_uninit(MPGLContext *ctx) talloc_free(ctx); } +void mpgl_set_context(MPGLContext *ctx) +{ + if (ctx->set_current) + ctx->set_current(ctx, true); +} + +void mpgl_unset_context(MPGLContext *ctx) +{ + if (ctx->set_current) + ctx->set_current(ctx, false); +} + +void mpgl_lock(MPGLContext *ctx) +{ + mpgl_set_context(ctx); +} + +void mpgl_unlock(MPGLContext *ctx) +{ + mpgl_unset_context(ctx); +} + +bool mpgl_is_thread_safe(MPGLContext *ctx) +{ + return !!ctx->set_current; +} + void mp_log_source(int mod, int lev, const char *src) { int line = 1; |