Abstract: Efficiently processing multiple non-overlapping layer images in display processing units is disclosed herein. In this regard, in some exemplary aspects, a display processing unit comprising a plurality of memory access pipeline circuits and a layer mixer circuit is provided. For each non-overlapping layer image of a plurality of non-overlapping layer images, a memory access pipeline circuit obtains image configuration data for the non-overlapping layer image, and fetches the non-overlapping layer image from an image data storage device based on the image configuration data. The memory access pipeline circuit then outputs each pixel of the non-overlapping layer image as part of an intermediate preblend image data stream based on the image configuration data. The layer mixer circuit blends the intermediate preblend image data stream and a background layer image data stream comprising a background layer image as a display data stream, and outputs the display data stream to a display device.

Abstract: This disclosure describes examples for generating image content based on both a color value and a dither value that is to be applied. When a color value for the current pixel is the same as the color value for a previous pixel, and a dither value that is to be applied to the current pixel is the same as the dither value that was added to the previous pixel, a display processor may output the output color value for the previous pixel as the output color value for the current pixel.

Abstract: This disclosure describes examples for generating image content based on both a color value and a dither value that is to be applied. When a color value for the current pixel is the same as the color value for a previous pixel, and a dither value that is to be applied to the current pixel is the same as the dither value that was added to the previous pixel, a display processor may output the output color value for the previous pixel as the output color value for the current pixel.

Abstract: In an example, a method for tile-based processing by a display processor may include reading first foreground tile data of a foreground image from a first memory space. The method may include storing the read first foreground tile data into a second memory space. The method may include reading first background tile data of a background image from the first memory space. The method may include storing the read first background tile data into a third memory space. The method may include reading a subset of data of the first foreground tile data from the second memory space. The method may include reading a subset of data of the first background tile data from the third memory space.

Abstract: In an example, a method for tile-based processing by a display processor may include reading first foreground tile data of a foreground image from a first memory space. The method may include storing the read first foreground tile data into a second memory space. The method may include reading first background tile data of a background image from the first memory space. The method may include storing the read first background tile data into a third memory space. The method may include reading a subset of data of the first foreground tile data from the second memory space. The method may include reading a subset of data of the first background tile data from the third memory space.