Qualcomm Incorporated

Qualcomm Innovation Center, Inc.

Yida Wang

Shiu Wai Hui

Veluppillai Arulesan

Stewart Chao

Systems and methods are disclosed for displaying data on a display device. An example method of displaying data on a display device includes computing a texture based on a difference between a high quality (HQ) tile and a corresponding low quality (LQ) tile. The method also includes storing the texture into an alpha channel of the LQ tile. The method further includes compositing the LQ tile onto the display device when an attribute of the alpha channel satisfies a threshold.

Systems and methods for reducing memory bandwidth using low quality tiles

A method and device for rasterizing content includes partitioning a webpage into webpage tiles that are associated with a front buffer and a back buffer. A rasterized version of each of the tiles may be stored in the associated front buffer, and each may include new content. If a previous copy of the at least one tile is found in memory, the new content is rasterized onto the previous copy. If a previous copy is not found, and if the proportion of the new content of the at least one tile is less than a threshold, the new content is rasterized onto the front buffer. If the proportion of the new content is above the threshold, and if unchanged content in the at least one tile is complex, then the unchanged content is copied to the back buffer and the new content is rasterized onto the associated back buffer.

Partial rasterization of web page tiles

In graphics rendering, a texture tile is divided into a plurality of partitions, each partition having a plurality of vertices. A map indicates, for each partition, whether each partition comprises a constant color. Then the plurality of vertices are transferred to a vertex shader, which determines that at least one of the partitions comprises a constant color partition. A vertex shader applies a vertex transformation that associates a set of texel coordinates from the texture tile to each of the vertices of the constant color partition to generate a set of associated texel coordinates. A first coordinate of the set of associated texel coordinates is set to zero. A pixel shader interpolates the associated texel coordinates to generate an interpolated value and accesses a single texel in the constant color partition that corresponds to the interpolated value.

Bandwidth reduction using vertex shader

An example method of providing a solid texture map to a graphics processing unit (GPU) includes dividing a tile of renderable content into a plurality of partitions. The method also includes determining that a set of partitions of the plurality of partitions is a solid color. The method further includes generating a solid texture map indicating that the set of partitions of the plurality of partitions is a solid color. The method also includes providing access to the solid texture map to a GPU.

Growing community of inventors

North York, Canada

Yida Wang