Tasks

Other Methods

• – initWithData:pixelFormat:pixelsWide:pixelsHigh:contentSize:

  Initializes with a texture2d with data

• – releaseData:

  These functions are needed to create mutable textures

• – keepData:length:
•   pixelFormat

  pixel format of the texture

  property
•   pixelsWide

  width in pixels

  property
•   pixelsHigh

  hight in pixels

  property
•   name

  texture name

  property
•   contentSizeInPixels

  returns content size of the texture in pixels

  property
•   maxS

  texture max S

  property
•   maxT

  texture max T

  property
•   hasPremultipliedAlpha

  whether or not the texture has their Alpha premultiplied

  property
•   shaderProgram

  shader program used by drawAtPoint and drawInRect

  property
•   resolutionType

  Returns the resolution type of the texture. Is it a RetinaDisplay texture, an iPad texture, a Mac, a Mac RetinaDisplay or an standard texture ?

  property
• – contentSize

  returns the content size of the texture in points

Drawing Methods

• – drawAtPoint:

  draws a texture at a given point

• – drawInRect:

  draws a texture inside a rect

Text Methods

• – initWithString:fontName:fontSize:dimensions:hAlignment:vAlignment:lineBreakMode:

  Initializes a texture from a string with dimensions, alignment, line break mode, font name and font size Supported lineBreakModes:

  - iOS: all UILineBreakMode supported modes
  - Mac: Only NSLineBreakByWordWrapping is supported.
  

• – initWithString:fontName:fontSize:dimensions:hAlignment:vAlignment:

  Initializes a texture from a string with dimensions, alignment, font name and font size

• – initWithString:fontName:fontSize:

  Initializes a texture from a string with font name and font size

• – initWithString:dimensions:alignment:fontName:fontSize:

  Initializes a texture from a string with dimensions, alignment, font name and font size

PVRTC Methods

• – initWithPVRTCData:level:bpp:hasAlpha:length:

  Initializes a texture from a PVRTC buffer

• – initWithPVRTCFile:

  Initializes a texture from a PVRTC file

GLFilter Methods

• – setTexParameters:

  sets the min filter, mag filter, wrap s and wrap t texture parameters. If the texture size is NPOT (non power of 2), then in can only use GL_CLAMP_TO_EDGE in GL_TEXTURE_WRAP_{S,T}.

• – setAntiAliasTexParameters

  sets antialias texture parameters: – GL_TEXTURE_MIN_FILTER = GL_LINEAR – GL_TEXTURE_MAG_FILTER = GL_LINEAR

• – setAliasTexParameters

  sets alias texture parameters: – GL_TEXTURE_MIN_FILTER = GL_NEAREST – GL_TEXTURE_MAG_FILTER = GL_NEAREST

• – generateMipmap

  Generates mipmap images for the texture. It only works if the texture size is POT (power of 2).

PixelFormat Methods

• + setDefaultAlphaPixelFormat:

  sets the default pixel format for CGImages that contains alpha channel. If the CGImage contains alpha channel, then the options are:

  - generate 32-bit textures: kCCTexture2DPixelFormat_RGBA8888 (default one)
  - generate 16-bit textures: kCCTexture2DPixelFormat_RGBA4444
  - generate 16-bit textures: kCCTexture2DPixelFormat_RGB5A1
  - generate 24-bit textures: kCCTexture2DPixelFormat_RGB888 (no alpha)
  - generate 16-bit textures: kCCTexture2DPixelFormat_RGB565 (no alpha)
  - generate 8-bit textures: kCCTexture2DPixelFormat_A8 (only use it if you use just 1 color)
  

• + defaultAlphaPixelFormat

  returns the alpha pixel format

• – bitsPerPixelForFormat

  returns the bits-per-pixel of the in-memory OpenGL texture

• – stringForFormat

  returns the pixel format in a NSString.

• + bitsPerPixelForFormat:

  Helper functions that returns bits per pixels for a given format.

Image Methods

• – initWithCGImage:resolutionType:

  Initializes a texture from a CGImage object

• – initWithImage:

  Initializes a texture from a UIImage object

PVRSupport Methods

• – initWithPVRFile:

  Initializes a texture from a PVR file.

• + PVRImagesHavePremultipliedAlpha:

  treats (or not) PVR files as if they have alpha premultiplied. Since it is impossible to know at runtime if the PVR images have the alpha channel premultiplied, it is possible load them as if they have (or not) the alpha channel premultiplied.

Extension Methods

• – setMipMapTexParameters

Deprecated Methods

• – initWithString:dimensions:alignment:lineBreakMode:fontName:fontSize:

- generate 32-bit textures: kCCTexture2DPixelFormat_RGBA8888 (default one)
- generate 16-bit textures: kCCTexture2DPixelFormat_RGBA4444
- generate 16-bit textures: kCCTexture2DPixelFormat_RGB5A1
- generate 24-bit textures: kCCTexture2DPixelFormat_RGB888 (no alpha)
- generate 16-bit textures: kCCTexture2DPixelFormat_RGB565 (no alpha)
- generate 8-bit textures: kCCTexture2DPixelFormat_A8 (only use it if you use just 1 color)

- iOS: all UILineBreakMode supported modes
- Mac: Only NSLineBreakByWordWrapping is supported.