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fix race condition when switching fullscreen with threaded_video on

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This commit is contained in:
Brad Parker 2017-01-17 19:09:15 -05:00
parent e862abfe12
commit fa5404fc53
1 changed files with 31 additions and 3 deletions
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34
gfx/video_driver.c
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@ -74,9 +74,19 @@
if (display_lock) \
slock_unlock(display_lock)
#define video_driver_context_lock() \
if (context_lock) \
slock_lock(context_lock)
#define video_driver_context_unlock() \
if (context_lock) \
slock_unlock(context_lock)
#define video_driver_lock_free() \
slock_free(display_lock); \
display_lock = NULL
slock_free(context_lock); \
display_lock = NULL; \
context_lock = NULL
#define video_driver_threaded_lock() \
if (video_driver_is_threaded()) \
@ -91,6 +101,8 @@
#define video_driver_lock_free() ((void)0)
#define video_driver_threaded_lock() ((void)0)
#define video_driver_threaded_unlock() ((void)0)
#define video_driver_context_lock() ((void)0)
#define video_driver_context_unlock() ((void)0)
#endif
typedef struct video_pixel_scaler
@ -169,6 +181,7 @@ static uint8_t *video_driver_record_gpu_buffer = NULL;
#ifdef HAVE_THREADS
static slock_t *display_lock = NULL;
static slock_t *context_lock = NULL;
#endif
struct aspect_ratio_elem aspectratio_lut[ASPECT_RATIO_END] = {
@ -1360,6 +1373,10 @@ static void video_driver_lock_new(void)
if (!display_lock)
display_lock = slock_new();
retro_assert(display_lock);
if (!context_lock)
context_lock = slock_new();
retro_assert(context_lock);
#endif
}
@ -1790,7 +1807,7 @@ void video_driver_reinit(void)
video_driver_get_hw_context();
if (hwr->cache_context)
video_driver_cache_context = true;
video_driver_cache_context = true;
else
video_driver_cache_context = false;
@ -1816,15 +1833,26 @@ bool video_driver_owns_driver(void)
bool video_driver_is_hw_context(void)
{
return hw_render.context_type != RETRO_HW_CONTEXT_NONE;
bool is_hw_context = false;
video_driver_context_lock();
is_hw_context = (hw_render.context_type != RETRO_HW_CONTEXT_NONE);
video_driver_context_unlock();
return is_hw_context;
}
void video_driver_deinit_hw_context(void)
{
video_driver_context_lock();
if (hw_render.context_destroy)
hw_render.context_destroy();
memset(&hw_render, 0, sizeof(hw_render));
video_driver_context_unlock();
hw_render_context_negotiation = NULL;
}