Graphic accelerators and graphic processing method

Abstract

The present invention provides an image accelerator and an image processing method. The image accelerator includes: a DMA controller, a buffer, a creater, and a composing slice element operation component. The DMA controller transfers the corresponding data stored in an external memory to the buffer; the creater takes data out from the buffer, conducts value inserting according to parameters, produces information of every point of a triangle, makes calculation on data of every pixel which is gotten after the value inserting, the composing slice element operation component conducts composing slice element operation on the parameter according to the signal of the creater, and writes results back to the buffer. The present invention does not excessively occupy the resource of the microprocessor and the accessing bandwidth of the memory, can meet the real time performance of the 3D image processing, can meet the requirement of the low power consumption of the equipment, and has low cost.

Description

technical field [0001] The invention relates to an accelerator, in particular to a graphics accelerator and a graphics processing method. Background technique [0002] The OpenGL (Open Graphics Library, open graphics program interface) standard is an efficient interface independent of specific implementations. It uses several geometric primitives (points, lines and polygons) to build the desired model. The main sequence of operations that OpenGL performs when rendering an image on a window is: [0003] (1) Use geometric primitives to build models to obtain mathematical descriptions of objects. OpenGL regards points, straight lines, polygons, graphics and bitmaps as primitives; [0004] (2) Arrange objects in three-dimensional space and select a favorable position to observe the scene; [0005] (3) Calculate the color of all objects. The color may be specified by the application, determined according to the lighting conditions, obtained by pasting the texture on the objec...

AI Technical Summary

Problems solved by technology

This solution can better meet the real-time performance of graphics acceleration, but since all operations are implemented by hardware, it will lead to relatively large hardware overhead, which cannot meet the requirements of low power consumption and low cost for handheld devices.

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