Method and system for a programmable image transformation

A method for transforming an image directly from a source image memory, comprising:

• reading source image data comprising a plurality of pixels from a first location in a source image memory device into a graphics engine, wherein the plurality of pixels include a block of bits, so that all bits of the block of bits is read into a graphics engine in one read cycle;
• aligning the source image data in a data align steering unit;
• shuffling the plurality of pixels of the source image data in a transform data shuffling unit, wherein the shuffling includes rearranging an order of the plurality of pixels;
• transforming memory addresses associated with the source image data in the transform data shuffling unit;
• and
• writing transformed image data by the graphics engine into a second location in the source image memory device,
• wherein the data align steering unit, and the transform data shuffling unit are included in the graphics engine
• wherein one pixel of the plurality of pixels is written into the second location and remaining pixels of the plurality of pixels are masked out within a display.

A system for rotating an image by predetermined angle, comprising:

• a graphics engine;
• a memory controller coupled to the graphics engine;
• and
• a source image memory device coupled to the memory controller,
• wherein the graphics engine rotates images received from the memory controller that are stored in the source image memory device by a predetermined angle through a direct transform in the source image memory device, which includes rearranging a plurality of pixels and writing the plurality of pixels of the image data of images from a first memory location of the source image memory device into a second memory location of the source image memory device, wherein the plurality of pixels include a block of bits, and before rearranging, all bits of the block of bits are read from the first memory location into a graphics engine in one read cycle;
• wherein the graphics engine displays the images associated with a first display location in a second display location
• wherein the graphics engine writes one pixel of the plurality of pixels into the second memory location and remaining pixels of the plurality of pixels are masked out within a display.

A system for transforming an image directly from a source image memory, comprising:

• means for rotating an image by a predetermined angle, which include
• means for copying a plurality of pixels of image data of the image from a first memory location of the source image memory associated with a first location on a display device to a second memory location of the source image memory associated with a second location on the display device, wherein the plurality of pixels include a block of bits, so that the copying includes reading all bits of the of the block of bits from the first memory location into a graphics engine in one read cycle, and
• wherein the first memory location and the second memory location are included in a single source image memory device
• means for writing one pixel of the plurality of pixels into the second memory location and
• masking out remaining pixels of the plurality of pixels within a display.

A system for transforming an image, comprising:

• means for reading source image data comprising a plurality of pixels from a first location in a source image memory device into a graphics engine, wherein the plurality of pixels include a block of bits so that all bits of the block of bits are read into the graphics engine in a one read cycle;
• means for aligning the source image data in a data align steering unit;
• means for shuffling the plurality of pixels of the source image data in a transform data shuffling unit, wherein the shuffling includes rearranging an order of the plurality of pixels;
• means for transforming memory addresses associated with the source image data in the transform data shuffling unit;
• and
• means for writing transformed image data to a second location in the source image memory device,
• wherein the data align steering unit, and the transform data shuffling unit are included in the graphics engine
• means for writing one pixel of the plurality of pixels into the second memory location and
• masking out remaining pixels of the plurality of pixels within a display.

A computer-readable medium having stored thereon a plurality of instructions for transforming images directly from a source image memory, said plurality of instructions when executed by computer, cause said computer to perform:

• rotating an image by a predetermined angle, which includes
• copying a plurality of pixels of image data of the image from a first memory location of the source image memory associated with a first location on a display device to a second memory location of the source image memory associated with a second location on the display device, wherein the plurality of pixels include a block of bits, so that the copying includes reading all bits of the block of bits from the first memory location into a graphics engine in one read cycle, and
• wherein the first memory location and the second memory location are included in a single source image memory device
• writing one pixel of the plurality of pixels into the second memory location and masking out remaining pixels of the plurality of pixels with a display.

A computer-readable medium having stored thereon a plurality of instructions for transforming images directly from a source image memory, said plurality of instructions when executed by a computer, cause said computer to perform:

• reading source image data comprising a plurality of pixels from a first location in a source image memory device into a draw graphics engine, wherein the plurality of pixels include a block of bits, so that al bits of the block of bits are read into the graphics engine in one read cycle;
• aligning the source image data in a data align steering unit;
• shuffling the plurality of pixels of the source image data in a transform data shuffling unit, wherein the shuffling includes rearranging an order of the plurality of pixels;
• transforming memory addresses associated with the source image data in the transform data shuffling unit, and
• writing transformed image data to a second location in the source image memory device, wherein the data align steering unit, and the transform data shuffling unit are included in the graphics engine
• wherein one pixel of the plurality of pixels is written into the second location and remaining pixels of the plurality of pixels are masked out within a display.