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implement LockHWSurface for shadow and drm engines due to the async. updates to real screen

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Vincent Wei
2023-07-14 10:14:23 +08:00
parent fef311f0b2
commit 39493ef4dc
7 changed files with 222 additions and 159 deletions
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src/include/newgal.h
+1 -5
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@@ -670,7 +670,6 @@ void GAL_MoveCursor (GAL_Surface* surface, int x, int y);
#endif /* defined _MGSCHEMA_COMPOSITING */
#if 0
/*
* GAL_LockSurface() sets up a surface for directly accessing the pixels.
* Between calls to GAL_LockSurface()/GAL_UnlockSurface(), you can write
@@ -680,9 +679,7 @@ void GAL_MoveCursor (GAL_Surface* surface, int x, int y);
*
* Not all surfaces require locking. If GAL_MUSTLOCK(surface) evaluates
* to 0, then you can read and write to the surface at any time, and the
* pixel format of the surface will not change. In particular, if the
* GAL_HWSURFACE flag is not given when calling GAL_SetVideoMode(), you
* will not need to lock the display surface before accessing it.
* pixel format of the surface will not change.
*
* No operating system or library calls should be made between lock/unlock
* pairs, as critical system locks may be held during this time.
@@ -691,7 +688,6 @@ void GAL_MoveCursor (GAL_Surface* surface, int x, int y);
*/
int GAL_LockSurface (GAL_Surface *surface);
void GAL_UnlockSurface (GAL_Surface *surface);
#endif
/*
* Set the color key (transparent pixel) in a blittable surface.