Hello,
My software Isadora adopts .qtz files to allow
them to function video effects/video generators.
Code that has worked a long while, up to and
including 10.9, is broken in 10.10 Yosemite.
Specifically, this relates to modules that use
the Billboard as an output. For these modules, I
create QCRenderer context in which to capture the
output, and then pass that on to other modules in
my app. (Code used to do this is below.)
Can anyone offer any advice about why this
functionality has stopped working in 10.10?
Thanks in Advance,
Mark
--- CODE SNIPPET - CREATING THE CONTEXT ---
mGLPixelBuffer = [[NSOpenGLPixelBuffer alloc]
initWithTextureTarget:GL_TEXTURE_RECTANGLE_EXT
textureInternalFormat:GL_RGBA
textureMaxMipMapLevel:0
pixelsWide:mOpenGLPixelWidth
pixelsHigh:mOpenGLPixelHeight];
if (mGLPixelBuffer == NULL) {
NSLog(@"Cannot create OpenGL pixel buffer");
}
// ------------------------------------------------------------
// CREATE THE OPENGL CONTEXT
NSOpenGLPixelFormat* openGLFormat = NULL;
if (mGLPixelBuffer != NULL) {
// create a pixel format
NSOpenGLPixelFormatAttribute attributes[] = {
NSOpenGLPFANoRecovery,
NSOpenGLPFAAccelerated,
NSOpenGLPFAPixelBuffer,
NSOpenGLPFAScreenMask,
(NSOpenGLPixelFormatAttribute)
CGDisplayIDToOpenGLDisplayMask(finalDisplayID),
NSOpenGLPFAColorSize, (NSOpenGLPixelFormatAttribute) 32,
NSOpenGLPFADepthSize, (NSOpenGLPixelFormatAttribute) 24,
(NSOpenGLPixelFormatAttribute) 0
};
NSOpenGLPixelFormat* openGLFormat =
[[[NSOpenGLPixelFormat alloc]
initWithAttributes:attributes] autorelease];
// NOTE: the pixel format is not retained
by [NSOpenGLContext initWithFormat]
mQCGLContext = [[NSOpenGLContext alloc]
initWithFormat:openGLFormat shareContext:NULL];
if (mQCGLContext != NULL) {
[mQCGLContext
setPixelBuffer:mGLPixelBuffer cubeMapFace:0
mipMapLevel:0 currentVirtualScreen:[mQCGLContext
currentVirtualScreen]];
} else {
mGLPixelBuffer = NULL;
NSLog(@"Cannot create OpenGL context");
}
}
----- CODE SNIPPET - SETTING THE CONTEXT -----
mQCRenderer = [[QCRenderer alloc]
initWithOpenGLContext:mQCGLContext
pixelFormat:openGLFormat file:(NSString*)
cfPluginFilePathStr];
--
=======================================================================
Mark Coniglio | m...@troikatronix.com
TroikaTronix | http://www.troikatronix.com/
Isadora® | http://www.troikatronix.com/isadora.html
| (interactive media processing environment)
=======================================================================
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