|
alloc] initWithSize:framebufferSize textureOptions:textureOptions onlyTexture:onlyTexture];
}
else
{
// Something found, pull the old framebuffer and decrement the count
NSInteger currentTextureID = (numberOfMatchingTextures - 1);
while ((framebufferFromCache == nil) && (currentTextureID >= 0))
{
NSString *textureHash = [NSString stringWithFormat:@"%@-%ld", lookupHash, (long)currentTextureID];
framebufferFromCache = [framebufferCache objectForKey:textureHash];
// Test the values in the cache first, to see if they got invalidated behind our back
if (framebufferFromCache != nil)
{
// Withdraw this from the cache while it's in use
[framebufferCache removeObjectForKey:textureHash];
}
currentTextureID--;
}
currentTextureID++;
[framebufferTypeCounts setObject:[NSNumber numberWithInteger:currentTextureID] forKey:lookupHash];
if (framebufferFromCache == nil)
{
framebufferFromCache = [[GPUImageFramebuffer alloc] initWithSize:framebufferSize textureOptions:textureOptions onlyTexture:onlyTexture];
}
}
});
[framebufferFromCache lock];
return framebufferFromCache;
}
- (GPUImageFramebuffer *)fetchFramebufferForSize:(CGSize)framebufferSize onlyTexture:(BOOL)onlyTexture;
{
GPUTextureOptions defaultTextureOptions;
defaultTextureOptions.minFilter = GL_LINEAR;
defaultTextureOptions.magFilter = GL_LINEAR;
defaultTextureOptions.wrapS = GL_CLAMP_TO_EDGE;
defaultTextureOptions.wrapT = GL_CLAMP_TO_EDGE;
defaultTextureOptions.internalFormat = GL_RGBA;
defaultTextureOptions.format = GL_BGRA;
defaultTextureOptions.type = GL_UNSIGNED_BYTE;
return [self fetchFramebufferForSize:framebufferSize textureOptions:defaultTextureOptions onlyTexture:onlyTexture];
}
- (void)returnFramebufferToCache:(GPUImageFramebuffer *)framebuffer;
{
[framebuffer clearAllLocks];
// dispatch_async(framebufferCacheQueue, ^{
runAsynchronouslyOnVideoProcessingQueue(^{
CGSize framebufferSize = framebuffer.size;
GPUTextureOptions framebufferTextureOptions = framebuffer.textureOptions;
NSString *lookupHash = [self hashForSize:framebufferSize textureOptions:framebufferTextureOptions onlyTexture:framebuffer.missingFramebuffer];
NSNumber *numberOfMatchingTexturesInCache = [framebufferTypeCounts objectForKey:lookupHash];
NSInteger numberOfMatchingTextures = [numberOfMatchingTexturesInCache integerValue];
NSString *textureHash = [NSString stringWithFormat:@"%@-%ld", lookupHash, (long)numberOfMatchingTextures];
// [framebufferCache setObject:framebuffer forKey:textureHash cost:round(framebufferSize.width * framebufferSize.height * 4.0)];
[framebufferCache setObject:framebuffer forKey:textureHash];
[framebufferTypeCounts setObject:[NSNumber numberWithInteger:(numberOfMatchingTextures + 1)] forKey:lookupHash];
});
}
- (void)purgeAllUnassignedFramebuffers;
{
runAsynchronouslyOnVideoProcessingQueue(^{
// dispatch_async(framebufferCacheQueue, ^{
[framebufferCache removeAllObjects];
[framebufferTypeCounts removeAllObjects];
#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
CVOpenGLESTextureCacheFlush([[GPUImageContext sharedImageProcessingContext] coreVideo |