专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08098257B2 Filtering unit for floating-point texture data 有权
标题翻译：用于浮点纹理数据的过滤单元
公开(公告)号：US08098257B2
公开(公告)日：2012-01-17
申请号：US12032591
申请日：2008-02-15
申请人： Walter E. Donovan , Anders M. Kugler , Christopher D. S. Donham
发明人： Walter E. Donovan , Anders M. Kugler , Christopher D. S. Donham
IPC分类号： G09G5/00 , G06T1/00
CPC分类号： G06T15/04 , G06T2200/28
摘要： Floating-point texture filtering units leverage existing fixed-point filter circuits. Groups of floating-point texture values are converted to products of a fixed-point mantissa and a scaling factor that is the same for each texture value in the group. The fixed-point mantissas are filtered using a fixed-point filter circuit, and the filtered mantissa is combined with the scaling factor to determine a floating-point filtered value. Multiple floating-point filter results may be combined in a floating-point accumulator circuit. The same fixed-point filter circuit may also be used to filter fixed-point texture data by providing fixed-point input path that bypasses the format conversion and a fixed-point accumulator.
摘要翻译：浮点纹理过滤单元利用现有的定点滤波电路。浮点纹理值组被转换为固定点尾数的乘积和对组中每个纹理值相同的缩放因子。使用定点滤波器电路对定点尾数进行滤波，并将滤波尾数与缩放因子组合以确定浮点滤波值。多个浮点滤波器结果可以组合在浮点累加器电路中。也可以使用相同的定点滤波器电路来通过提供绕过格式转换的定点输入路径和定点累加器来对定点纹理数据进行滤波。

2. 发明授权

US08040357B1 Quotient remainder coverage system and method 有权
标题翻译：商品剩余覆盖系统和方法
公开(公告)号：US08040357B1
公开(公告)日：2011-10-18
申请号：US11893418
申请日：2007-08-15
申请人： Edward A. Hutchins , Christopher D. S. Donham
发明人： Edward A. Hutchins , Christopher D. S. Donham
IPC分类号： G09G5/00
CPC分类号： G06T11/40
摘要： Embodiments of the present invention pixel processing system and method provide convenient and efficient processing of pixel information. In one embodiment, quotient-remainder information associated with barycentric coordinate information indicating the location of a pixel is received. In one exemplary implementation quotient-remainder information is associated with barycentric coordinate information through the relationship c divided by dcdx, where c is the barycentric coordinate for a particular edge and dcdx is the derivative of the barycentric coordinate in the screen horizontal direction. The relationship of a pixel with respect to a primitive edge is determined based upon the quotient-remainder information. For example, a positive quotient can indicate a pixel is inside a triangle and a negative quotient can indicate a pixel is outside a triangle. Pixel processing such as shading is performed in accordance with the relationship of the pixel to the primitive.
摘要翻译：本发明的像素处理系统和方法的实施例提供了对像素信息的方便和有效的处理。在一个实施例中，接收与指示像素的位置的重心坐标信息相关联的商剩余信息。在一个示例性实施方案中，商余数信息通过除以dcdx的关系c与重心坐标信息相关联，其中c是特定边缘的重心坐标，dcdx是屏幕水平方向上的重心坐标的导数。基于商余数信息确定像素与原始边缘的关系。例如，正商可以指示像素在三角形内，而负商可以指示像素在三角形之外。根据像素与原图的关系来执行诸如阴影的像素处理。

3. 发明授权

US07825935B1 System, method and computer program product for using textures as instructions for graphics processing 有权
标题翻译：使用纹理的系统，方法和计算机程序产品作为图形处理的指令
公开(公告)号：US07825935B1
公开(公告)日：2010-11-02
申请号：US10006551
申请日：2001-11-30
申请人： Christopher D. S. Donham , Edward Hutchins , Alexander Minkin , George E. Scott, III
发明人： Christopher D. S. Donham , Edward Hutchins , Alexander Minkin , George E. Scott, III
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： A system, method and computer program product are provided for retrieving instructions from memory utilizing a texture module in a graphics pipeline. During use, an instruction request is sent to memory utilizing a texture module in a graphics pipeline. In response thereto, instructions are received from the memory in response to the instruction request utilizing the texture module in the graphics pipeline.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于使用图形管线中的纹理模块从存储器中检索指令。在使用期间，使用图形管线中的纹理模块将指令请求发送到存储器。响应于此，响应于利用图形管线中的纹理模块的指令请求，从存储器接收指令。

4. 发明授权

US07565490B1 Out of order graphics L2 cache 有权
标题翻译：乱序图形L2缓存
公开(公告)号：US07565490B1
公开(公告)日：2009-07-21
申请号：US11313587
申请日：2005-12-20
申请人： Christopher D. S. Donham , John S. Montrym , Patrick R. Marchand
发明人： Christopher D. S. Donham , John S. Montrym , Patrick R. Marchand
IPC分类号： G06F12/00
CPC分类号： G06F12/0875 , G06T1/00 , G06T15/005 , G06T15/04 , G06T2200/28
摘要： Circuits, methods, and apparatus that provide an L2 cache that services requests out of order. This L2 cache processes requests that are hits without waiting for data corresponding to requests that are misses to be returned from a graphics memory. A first auxiliary memory, referred to as a side pool, is used for holding subsequent requests for data at a specific address while a previous request for data at that address is serviced by a frame buffer interface and graphics memory. This L2 cache may also use a second auxiliary memory, referred to as a take pool, to store requests or pointers to data that is ready to be retrieved from an L2 cache.
摘要翻译：提供二级缓存的电路，方法和设备，以使服务请求无序。该L2缓存处理作为命中的请求，而不等待与从图形存储器返回的未命中的请求对应的数据。称为侧池的第一辅助存储器用于在特定地址处保留对数据的后续请求，同时由该缓冲区接口和图形存储器为该地址提供先前的数据请求。该L2高速缓存还可以使用称为采取池的第二辅助存储器来存储对准备从L2高速缓存检索的数据的请求或指针。

5. 发明授权

US08547395B1 Writing coverage information to a framebuffer in a computer graphics system 有权
标题翻译：将覆盖信息写入计算机图形系统中的帧缓冲区
公开(公告)号：US08547395B1
公开(公告)日：2013-10-01
申请号：US11643545
申请日：2006-12-20
申请人： Edward A. Hutchins , Christopher D. S. Donham , Gary C. King , Michael J. M. Toksvig
发明人： Edward A. Hutchins , Christopher D. S. Donham , Gary C. King , Michael J. M. Toksvig
IPC分类号： G09G5/00
CPC分类号： G06T15/005 , G06T11/40
摘要： A computer-implemented graphics system has a mode of operation in which primitive coverage information is generated by a rasterizer for real sample locations and virtual sample locations for use in anti-aliasing. An individual pixel includes a single real sample location and at least one virtual sample location. If the coverage information cannot be changed by a pixel shader, then the rasterizer can write the coverage information to a framebuffer. If, however, the coverage information can be changed by the shader, then the rasterizer sends the coverage information to the shader.
摘要翻译：计算机实现的图形系统具有操作模式，其中原始覆盖信息由光栅化器生成用于实际样本位置和用于抗锯齿的虚拟样本位置。单个像素包括单个实际采样位置和至少一个虚拟采样位置。如果覆盖信息不能被像素着色器改变，则光栅化器可以将覆盖信息写入帧缓冲区。然而，如果覆盖信息可以由着色器改变，则光栅化器将覆盖信息发送到着色器。

6. 发明授权

US07996622B1 Detecting unused cache lines 有权
标题翻译：检测未使用的缓存行
公开(公告)号：US07996622B1
公开(公告)日：2011-08-09
申请号：US11890821
申请日：2007-08-07
申请人： Michael J. M. Toksvig , Christopher D. S. Donham
发明人： Michael J. M. Toksvig , Christopher D. S. Donham
IPC分类号： G06F12/00
CPC分类号： G06F12/124 , G06F12/122
摘要： In the event of a cache miss, data is written from main memory to the cache. To select a cache line to write the data to, cache lines in the cache that are not referenced during a certain interval are identified. One of the identified cache lines is selected and the data can be written to that cache line.
摘要翻译：在缓存未命中的情况下，数据从主存储器写入高速缓存。要选择一条高速缓存行来写入数据，可以识别高速缓存中一段时间内未被引用的行。选择一个已识别的高速缓存行，并将数据写入该高速缓存行。

7. 发明授权

US07911470B1 Fairly arbitrating between clients 有权
标题翻译：在客户之间进行相当的仲裁
公开(公告)号：US07911470B1
公开(公告)日：2011-03-22
申请号：US11955335
申请日：2007-12-12
申请人： Christopher D. S. Donham , John S. Montrym
发明人： Christopher D. S. Donham , John S. Montrym
IPC分类号： G06T1/20
CPC分类号： G09G5/001 , G09G5/363 , G09G5/393 , G09G2352/00 , G09G2360/125
摘要： An apparatus and method for fairly arbitrating between clients with varying workloads. The clients are configured in a pipeline for processing graphics data. An arbitration unit selects requests from each of the clients to access a shared resource. Each client provides a signal to the arbitration unit for each clock cycle. The signal indicates whether the client is waiting for a response from the arbitration unit and whether the client is not blocked from outputting processed data to a downstream client. The signals from each client are integrated over several clock cycles to determine a servicing priority for each client. Arbitrating based on the servicing priorities improves performance of the pipeline by ensuring that each client is allocated access to the shared resource based on the aggregate processing load distribution.
摘要翻译：一种用于在具有不同工作负载的客户端之间进行公平仲裁的装置和方法。客户端被配置在流水线中以处理图形数据。仲裁单元选择来自每个客户端的访问共享资源的请求。每个客户端在每个时钟周期向仲裁单元提供一个信号。该信号指示客户端是否正在等待来自仲裁单元的响应以及客户端是否被阻止不将处理的数据输出到下游客户端。来自每个客户端的信号在几个时钟周期内被集成，以确定每个客户端的服务优先级。基于服务优先级的仲裁通过确保每个客户端基于总体处理负载分配分配对共享资源的访问来提高流水线的性能。

8. 发明授权

US07817165B1 Selecting real sample locations for ownership of virtual sample locations in a computer graphics system 有权
标题翻译：选择计算机图形系统中虚拟样本位置的所有权的实际样本位置
公开(公告)号：US07817165B1
公开(公告)日：2010-10-19
申请号：US11643185
申请日：2006-12-20
申请人： Christopher D. S. Donham , Edward A. Hutchins , Gary C. King , Michael J. M. Toksvig
发明人： Christopher D. S. Donham , Edward A. Hutchins , Gary C. King , Michael J. M. Toksvig
IPC分类号： G09G5/00
CPC分类号： G09G5/363 , G06T11/40 , G09G5/00 , G09G2340/10 , G09G2360/18
摘要： A computer-implemented graphics system has a mode of operation in which primitive coverage information is generated for real sample locations and virtual sample locations for use in anti-aliasing. An individual pixel includes a single real sample location and at least one virtual sample location. A block of real sample locations can be selected to delineate and encompass a region containing a number of virtual sample locations. Pixel attribute values (e.g., z-depth or stencil values) associated with the block of selected real sample locations can be used to associate each virtual sample location within the region with one of the selected real sample locations. The virtual sample location assumes the pixel attribute value of the real sample location with which it is associated.
摘要翻译：计算机实现的图形系统具有操作模式，其中为实际采样位置和用于抗锯齿的虚拟采样位置生成原始覆盖信息。单个像素包括单个实际采样位置和至少一个虚拟采样位置。可以选择实际样本位置的块来描绘并包含包含多个虚拟样本位置的区域。可以使用与所选择的实取样位置的块相关联的像素属性值（例如，z深度或模板值）将该区域内的每个虚拟样本位置与所选择的实际采样位置之一相关联。虚拟样本位置假定与其相关联的实际样本位置的像素属性值。

9. 发明授权

US07705846B1 Processing high numbers of independent textures in a 3-D graphics pipeline 有权
公开(公告)号：US07705846B1
公开(公告)日：2010-04-27
申请号：US11955377
申请日：2007-12-12
申请人： Christopher D. S. Donham , Alexander L. Minkin
发明人： Christopher D. S. Donham , Alexander L. Minkin
IPC分类号： G06T15/50 , G06T11/40 , G06T1/00 , G09G5/00
CPC分类号： G06T1/20
摘要： Circuits, methods, and apparatus provide for the storage of texture descriptors in a graphics memory. Since the texture descriptors are stored in a graphics memory, they do not need to be stored in the graphics processor itself, thus reducing graphics processor circuitry and cost. This allows more textures to be associated with each graphics primitive, thereby improving image realism.

10. 发明授权

US08325203B1 Optimal caching for virtual coverage antialiasing 有权
标题翻译：虚拟覆盖抗锯齿的最优缓存
公开(公告)号：US08325203B1
公开(公告)日：2012-12-04
申请号：US11893405
申请日：2007-08-15
申请人： Christopher D. S. Donham
发明人： Christopher D. S. Donham
IPC分类号： G09G5/00
CPC分类号： G06T15/005 , G06T11/40
摘要： In a graphics pipeline of a graphics processor, a method for caching pixel data. The method includes receiving a graphics primitive for rasterization in a raster stage of a graphics processor and rasterizing the graphics primitive to generate a plurality of tiles of pixels related to the graphics primitive. A subpixel sample group related to each of the plurality of tiles is determined. The plurality of tiles and the corresponding plurality of subpixel sample groups are stored into a frame buffer memory. A set of tiles and a set of corresponding subpixel sample groups from the frame buffer memory are stored in a rasterization cache, wherein the rasterization cache is configured for access by the raster stage to enable a subpixel anti-aliasing operation.
摘要翻译：在图形处理器的图形流水线中，用于缓存像素数据的方法。该方法包括在图形处理器的光栅级中接收用于光栅化的图形基元，并且对图形基元进行光栅化以生成与图形基元相关的多个像素块。确定与多个瓦片中的每一个相关联的子像素样本组。多个瓦片和相应的多个子像素样本组被存储到帧缓冲存储器中。来自帧缓冲存储器的一组瓦片和一组对应的子像素样本组被存储在光栅化缓存中，其中光栅化缓存被配置为用于光栅级的访问以启用子像素抗锯齿操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式