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2014/10/15 ¤U¤È 10:12:37
iphone Programming Glossary: pixelswidehttp://stackoverflow.com/questions/1024603/opengl-es-render-to-texture This you only need to do it once texture Texture2D alloc initWithData 0 pixelFormat kTexture2DPixelFormat_RGB888 pixelsWide 32 pixelsHigh 32 contentSize CGSizeMake width height create framebuffer glGenFramebuffersOES 1 textureFrameBuffer glBindFramebufferOES..
kCGColorSpaceGenericRGB is deprecated on iPhone? http://stackoverflow.com/questions/560254/kcgcolorspacegenericrgb-is-deprecated-on-iphone deprecated on iPhone I'm trying to get bitmap context with the following code GContextRef MyCreateBitmapContext int pixelsWide int pixelsHigh CGContextRef context NULL CGColorSpaceRef colorSpace void bitmapData int bitmapByteCount int bitmapBytesPerRow.. context NULL CGColorSpaceRef colorSpace void bitmapData int bitmapByteCount int bitmapBytesPerRow bitmapBytesPerRow pixelsWide 4 1 bitmapByteCount bitmapBytesPerRow pixelsHigh colorSpace CGColorSpaceCreateWithName kCGColorSpaceGenericRGB 2 bitmapData.. 3 if bitmapData NULL fprintf stderr Memory not allocated return NULL context CGBitmapContextCreate bitmapData 4 pixelsWide pixelsHigh 8 bits per component bitmapBytesPerRow colorSpace kCGImageAlphaPremultipliedLast if context NULL free..
OpenGL ES 2.0 / MonoTouch: Texture is colorized red http://stackoverflow.com/questions/7986153/opengl-es-2-0-monotouch-texture-is-colorized-red All.UnsignedByte RequestImagePixelData image protected CGBitmapContext CreateARGBBitmapContext CGImage inImage var pixelsWide inImage.Width var pixelsHigh inImage.Height var bitmapBytesPerRow pixelsWide 4 var bitmapByteCount bitmapBytesPerRow pixelsHigh.. CGImage inImage var pixelsWide inImage.Width var pixelsHigh inImage.Height var bitmapBytesPerRow pixelsWide 4 var bitmapByteCount bitmapBytesPerRow pixelsHigh Note implicit colorSpace.Dispose using var colorSpace CGColorSpace.CreateDeviceRGB.. if bitmapData IntPtr.Zero throw new Exception Memory not allocated. var context new CGBitmapContext bitmapData pixelsWide pixelsHigh 8 bitmapBytesPerRow colorSpace CGImageAlphaInfo.PremultipliedFirst if context null throw new Exception Context..
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