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Bug 577224 - Fix nsCARenderer warnings; r=smichaud

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This commit is contained in:
Benoit Girard 2011-06-24 10:49:42 -04:00
parent d291ab8e5a
commit c9729f2d7f
2 changed files with 13 additions and 5 deletions
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2
gfx/thebes/nsCoreAnimationSupport.h
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@ -74,7 +74,7 @@ public:
nsIOSurface *surf,
CGColorSpaceRef aColorSpace,
int aX, int aY,
int aWidth, int aHeight);
size_t aWidth, size_t aHeight);
private:
void Destroy();

16
gfx/thebes/nsCoreAnimationSupport.mm
View File

@ -713,7 +713,7 @@ nsresult nsCARenderer::DrawSurfaceToCGContext(CGContextRef aContext,
nsIOSurface *surf,
CGColorSpaceRef aColorSpace,
int aX, int aY,
int aWidth, int aHeight) {
size_t aWidth, size_t aHeight) {
surf->Lock();
size_t bytesPerRow = surf->GetBytesPerRow();
size_t ioWidth = surf->GetWidth();
@ -729,11 +729,16 @@ nsresult nsCARenderer::DrawSurfaceToCGContext(CGContextRef aContext,
// We get rendering glitches if we use a width/height that falls
// outside of the IOSurface.
if (aWidth > ioWidth - aX)
if (aWidth + aX > ioWidth)
aWidth = ioWidth - aX;
if (aHeight > ioHeight - aY)
if (aHeight + aY > ioHeight)
aHeight = ioHeight - aY;
if (aX < 0 || aX >= ioWidth ||
aY < 0 || aY >= ioHeight) {
return NS_ERROR_FAILURE;
}
CGImageRef cgImage = ::CGImageCreate(ioWidth, ioHeight, 8, 32, bytesPerRow,
aColorSpace, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
dataProvider, NULL, true, kCGRenderingIntentDefault);
@ -751,7 +756,10 @@ nsresult nsCARenderer::DrawSurfaceToCGContext(CGContextRef aContext,
}
::CGContextScaleCTM(aContext, 1.0f, -1.0f);
::CGContextDrawImage(aContext, CGRectMake(aX, -aY-aHeight, aWidth, aHeight), subImage);
::CGContextDrawImage(aContext,
CGRectMake(aX, -(CGFloat)aY - (CGFloat)aHeight,
aWidth, aHeight),
subImage);
::CGImageRelease(subImage);
::CGImageRelease(cgImage);