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Graphic Context Locking

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/branches/testplant_1@28493 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Jonathan Gillaspie 2009-08-20 17:46:54 +00:00
parent aa55f45614
commit eb9f42837b
1 changed files with 35 additions and 30 deletions
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65
Source/gsc/GSContext.m
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@ -40,6 +40,7 @@
#include <Foundation/NSString.h>
#include <Foundation/NSUserDefaults.h>
#include <Foundation/NSDebug.h>
#include <Foundation/NSLock.h>
#include "gsc/GSContext.h"
#include "gsc/GSStreamContext.h"
@ -102,6 +103,7 @@
/* Globally unique gstate number */
static unsigned int unique_index = 0;
static NSMapTable *gtable;
static NSRecursiveLock *gcLock = nil;
@interface GSContext (PrivateOps)
- (void)DPSdefineuserobject;
@ -116,6 +118,20 @@ static NSMapTable *gtable;
- (void)DPSpop;
@end
/* Manage the graphics context lock */
static void gc_lock()
{
if(gcLock == nil)
{
gcLock = [[NSRecursiveLock alloc] init];
}
[gcLock lock];
}
static void gc_unlock()
{
[gcLock unlock];
}
/**
<unit>
@ -435,17 +451,21 @@ static NSMapTable *gtable;
{
if (GSIArrayCount((GSIArray)gstack) == 0)
return;
gc_lock();
RELEASE(gstate);
gstate = (GSIArrayLastItem((GSIArray)gstack)).obj;
ctxt_pop(gstate, gstack, GSGState);
RETAIN(gstate);
gc_unlock();
}
- (void) DPSgsave
{
gc_lock();
ctxt_push(gstate, gstack);
AUTORELEASE(gstate);
gstate = [gstate copy];
gc_unlock();
}
- (void) DPSinitgraphics
@ -457,10 +477,12 @@ static NSMapTable *gtable;
{
if (gst)
{
gc_lock();
[self DPSexecuserobject: gst];
RELEASE(gstate);
ctxt_pop(gstate, opstack, GSGState);
gstate = [gstate copy];
gc_unlock();
}
else
DESTROY(gstate);
@ -473,7 +495,8 @@ static NSMapTable *gtable;
DPS_ERROR(DPSundefined, @"No gstate");
return 0;
}
[isa insertObject: AUTORELEASE([gstate copy]) forKey: ++unique_index];
[isa insertObject: AUTORELEASE([gstate copy]) forKey: ++unique_index];
return unique_index;
}
@ -488,7 +511,7 @@ static NSMapTable *gtable;
if (gst <= 0)
return;
[isa insertObject: AUTORELEASE([gstate copy]) forKey: gst];
[isa insertObject: AUTORELEASE([gstate copy]) forKey: gst];
}
/* ----------------------------------------------------------------------- */
@ -778,20 +801,11 @@ static NSMapTable *gtable;
- (void) DPScomposite: (float)x : (float)y : (float)w : (float)h
: (int)gstateNum : (float)dx : (float)dy : (int)op
{
NSRect rect;
NSPoint p;
GSGState *g = gstate;
if (gstateNum)
{
[self DPSexecuserobject: gstateNum];
ctxt_pop(g, opstack, GSGState);
}
rect = NSMakeRect(x, y, w, h);
p = NSMakePoint(dx, dy);
[gstate compositeGState: g fromRect: rect toPoint: p op: op];
[self GScomposite: gstateNum
toPoint: NSMakePoint(dx, dy)
fromRect: NSMakeRect(x, y, w, h)
operation: op
fraction: 1.0];
}
- (void) DPScompositerect: (float)x : (float)y : (float)w : (float)h : (int)op
@ -802,20 +816,11 @@ static NSMapTable *gtable;
- (void) DPSdissolve: (float)x : (float)y : (float)w : (float)h
: (int)gstateNum : (float)dx : (float)dy : (float)delta
{
NSRect rect;
NSPoint p;
GSGState *g = gstate;
if (gstateNum)
{
[self DPSexecuserobject: gstateNum];
ctxt_pop(g, opstack, GSGState);
}
rect = NSMakeRect(x, y, w, h);
p = NSMakePoint(dx, dy);
[gstate dissolveGState: g fromRect: rect toPoint: p delta: delta];
[self GScomposite: gstateNum
toPoint: NSMakePoint(dx, dy)
fromRect: NSMakeRect(x, y, w, h)
operation: NSCompositeSourceOver
fraction: delta];
}
- (void) GScomposite: (int)gstateNum