A device for real-time rendering of graphics images by a vector graphics processor without using ddr

Abstract

The invention provides an apparatus for finishing real-time drawing of a graphic image by a vector graphic processor without depending on DDR. The apparatus is connected with a central processing unit and an image display in an SOC. The apparatus comprises the vector graphic processor, a first data selector, a second data selector, a third data selector, a fourth data selector, a first internal memory, a second internal memory, a third internal memory, a fourth internal memory and a display controller. According to the apparatus, the area of a whole SOC chip is saved; 97% of memory area can be saved; and the speed of accessing an internal SRAM is much higher than the speed of accessing the DDR, so that the performance of an internal access memory of the SOC chip can be greatly improved and the power consumption of a system can be reduced. The apparatus has the advantages of clear architecture, definite work division, easy realization, simple software control process and the like, and can be widely applied to the internet of things, wearable devices and vehicle-mounted devices.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a device for real-time drawing of graphics and images by a vector graphics processor without using DDR. Background technique [0002] In an existing chip architecture including a vector graphics processor, the storage required by the vector graphics processor includes an internal memory SRAM of the vector graphics processor and an external memory DDR of the vector graphics processor. The internal memory SRAM is a temporary processing area when the vector graphics processor executes the program. Its outstanding advantage is that the access speed is fast, but the capacity is generally small. The external memory DDR is used to store the external data required by the vector graphics processor to execute the program. DDR has a large capacity and slow access speed. In an SOC system, the cost of DDR accounts for an increasing proportion of the overall cost. Big. [0003] With the conti...

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Problems solved by technology

[0005] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of device that vector graphics processor does not complete graphic image real-time drawing by DDR, is used to solve the problem that vector graphics processor chip area is too large and vector graphics in the prior art. Issues with low processor performance

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