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Quartz: Restore 1.2.14 behaviour of letting apps draw from background thread.

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Strictly speaking, this isn't encouraged, but it's a regression.

--HG--
branch : SDL-1.2
extra : rebase_source : a75c40b16b7f8f83ef36a66114de1e27e2435eb3
This commit is contained in:
Ryan C. Gordon 2012-01-02 21:25:34 -08:00
parent 548fbf5264
commit 47e574b123
2 changed files with 10 additions and 5 deletions
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2
src/video/quartz/SDL_QuartzVideo.h
View file

@ -93,6 +93,7 @@ typedef struct SDL_PrivateVideoData {
const void *save_mode; /* original mode of the display */
CGDirectPaletteRef palette; /* palette of an 8-bit display */
NSOpenGLContext *gl_context; /* OpenGL rendering context */
NSGraphicsContext *nsgfx_context; /* Cocoa graphics context */
Uint32 width, height, bpp; /* frequently used data about the display */
Uint32 flags; /* flags for current mode, for teardown purposes */
Uint32 video_set; /* boolean; indicates if video was set correctly */
@ -132,6 +133,7 @@ typedef struct SDL_PrivateVideoData {
#define allow_screensaver (this->hidden->allow_screensaver)
#define palette (this->hidden->palette)
#define gl_context (this->hidden->gl_context)
#define nsgfx_context (this->hidden->nsgfx_context)
#define device_width (this->hidden->width)
#define device_height (this->hidden->height)
#define device_bpp (this->hidden->bpp)

13
src/video/quartz/SDL_QuartzVideo.m
View file

@ -1149,9 +1149,8 @@ static SDL_Surface* QZ_SetVideoModeInternal (_THIS, SDL_Surface *current,
}
if (qz_window != nil) {
NSGraphicsContext *ctx;
ctx = [NSGraphicsContext graphicsContextWithWindow:qz_window];
[NSGraphicsContext setCurrentContext:ctx];
nsgfx_context = [NSGraphicsContext graphicsContextWithWindow:qz_window];
[NSGraphicsContext setCurrentContext:nsgfx_context];
}
/* Setup the new pixel format */
@ -1507,8 +1506,12 @@ static void QZ_UpdateRects (_THIS, int numRects, SDL_Rect *rects)
}
else {
CGContextRef cgc = (CGContextRef)
[[NSGraphicsContext currentContext] graphicsPort];
NSGraphicsContext *ctx = [NSGraphicsContext currentContext];
if (ctx != nsgfx_context) { /* uhoh, you might be rendering from another thread... */
[NSGraphicsContext setCurrentContext:nsgfx_context];
ctx = nsgfx_context;
}
CGContextRef cgc = (CGContextRef) [ctx graphicsPort];
QZ_DrawResizeIcon (this);
CGContextFlush (cg_context);
CGImageRef image = CGBitmapContextCreateImage (cg_context);