Protection belt cutting system and method for plot processor
A graphics processor and guardband technology, applied in image data processing, 3D image processing, instruments, etc., can solve problems such as poor hardware mapping, and achieve faster cutting processing speed, high-speed calculation, and reduced complexity Effect
Active Publication Date: 2008-09-10
VIA TECH INC
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These algorithms usually require a complete classification (for example, the observation plane truncated clipping code), the intersection judgment with the observation clipping plane, and the interpolation of each parameter of the vertex (such as Alpha parameters, Fogo parameters, etc.), which are Requires strong computational steps, does not map well to hardware
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[0018] FIG. 2 is an embodiment of a drawing processing system 100 including an embodiment of a guard tape cutting system 200 . In some cases, graphics processing system 100 may be configured as a computer system. Graphics processing system 100 may include display device 202, display interface unit (DIU) 204, and local memory 206 (eg, may include display buffers, texture buffers, command buffers, etc.). Here, the local memory 206 may also include a frame buffer or a storage unit. Local memory 206 is coupled to graphics processing unit (GPU) 214 through memory interface unit (MIU) 210 . In this embodiment, the storage interface unit MIU 210 , the graphics processing unit GPU 214 and the display interface unit DIU 204 are coupled to a bus interface unit (BIU) 218 . In one embodiment, the bus interface unit BIU 218 may be PCIE compliant and may use a Graphical Address Remapping Table (GART), although other memory mapping mechanisms may be used. Graphics processing unit GPU 21...
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The invention discloses a protection belt cutting system and a protection belt cutting method in a drawing processor. In a system embodiment, the system comprises a top point processor which switches switched top point data to an integer display space and transmits the switched top point data to the downstream of a drawing pipeline; a protection belt cutting module coupled to the top point processor; a protection belt calculating logic unit coupled to the protection belt cutting module and the protection belt cutting module judges whether a basic primitive corresponding to the switched top point data needs cutting or not and transmits the basic primitive to the protection belt calculating logic unit based on the judgment so as to carry out protection belt cutting. The protection belt cutting system and the protection belt cutting method in the drawing processor of the invention provide effective and high speed calculation and reduce complexity.
Description
technical field [0001] The invention relates to a data processing system, especially a computer graphics system and method. Background technique [0002] Computer graphics is the science and art of using computers to generate graphics, images or other drawings or to illustrate information. The generation of graphics or images is often referred to as rendering. Usually, in computer 3D graphics, the geometry representing the surface (or volume) of an object in a scene is translated into pixels (image primitives), stored in a frame buffer, and then displayed on a display device. [0003] When a graphic or image is rendered, objects undergo multiple processes through multiple stages of a pipeline, often referred to as spaces, when processed through multiple parallel systems. please see figure 1 , the rendering process 10 is generally shown as going from model space 102 to world space 104 to view space 106 to clip space 108 to display space 110 . In some implementations, this...
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IPC IPC(8): G06T15/30
Inventor 翁国尹许云杰
Owner VIA TECH INC