Texture mapping hardware accelerator based on double-Buffer architecture

Abstract

The invention belongs to the technical field of GPU (Graphics Processing Unit) chip design, and particularly relates to a texture mapping hardware accelerator based on a double-Buffer architecture. The accelerator comprises an address calculation unit, a texture mapping unit, a texture mapping unit, a texture mapping unit, a texture mapping unit, a texture mapping unit and a texture mapping unit,wherein the texel cache unit is used for obtaining the texel of the corresponding cache line from the memory according to different request addresses; according to filter processing of different isotropic and antiisotropic filtering modes and pixel processing for borer and switch operation, the data calculation unit can improve the calculation efficiency of texture index addresses through double Buffers, when two layers of data exist at the same time and need to be calculated, calculation can be started in parallel at the same time. When one layer of data is enabled and needs to be calculated,the texel is indexed in parallel in an odd-even mode to guarantee parallel calculation of the data, so the indexing time of the texel data is shortened, and the texel calculation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of GPU chip design, in particular to a texture mapping hardware accelerator based on a double Buffer architecture. Background technique [0002] Texture mapping operations are widely used in GPUs, not only as computing units in the general computing field of GPGPU, but also as executors of texture data fetch and sample in graphics rendering pipelines. Therefore, the performance of the texture mapping unit directly affects the internal execution efficiency of the graphics processor, and directly affects the speed of data lookup and transfer in the field of general computing. Therefore, designing an efficient texture mapping unit is particularly critical in GPU design. Contents of the invention [0003] The object of the present invention is to provide a texture mapping hardware accelerator based on a dual Buffer architecture to solve the problem of poor internal execution efficiency of the graphics processo...

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Problems solved by technology

[0003] The object of the present invention is to provide a texture mapping hardware accelerator based on a dual Buffer architecture to solve the problem of poor internal execution efficiency of the graphics processor proposed in the above-mentioned background technology, which directly affects the speed of data Lookup and transfer in the field of general computing

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