Color space conversion between semi-planar YUV and planar YUV formats

A method, comprising:

• employing a microprocessor to execute computer executable instructions stored in a memory to perform the following acts:
• generating two or more luminance input pixels from a source image, wherein the two or more luminance input pixels each include a luma component;
• generating two or more chrominance input pixels from the source image, wherein the two or more chrominance input pixels each include a first chroma component and a second chroma component;
• generating one or more luminance output pixels, wherein the one or more luminance output pixels each include a group of luma components from a plurality of the luminance input pixels;
• and
• generating one or more chrominance output pixels, wherein the one or more chrominance output pixels each include a group of first chroma components from a plurality of the chrominance input pixels or a group of second chroma components from the plurality of the chrominance input pixels.

A method, comprising:

• receiving at a graphics processing unit (GPU) a source image in first color space format from a central processing unit (CPU);
• forming a first input buffer with luminance graphic data from the source image;
• forming a second input buffer with chrominance graphic data from the source image;
• generating, by the GPU, output pixel values of the luminance graphic data by grouping a plurality of luminance components from the first input buffer into a luminance output pixel configured in a second color space format;
• generating, by the GPU, output pixel values of the chrominance graphic data by grouping a plurality of chrominance components from the first input buffer into a chrominance output pixel configured in the second color space format;
• and
• transmitting the output pixel values of the luminance graphic data in the second color space format and the output pixel values of the chrominance graphic data in the second color space format to the CPU.