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1. 发明授权

US07355603B2 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：US07355603B2
公开(公告)日：2008-04-08
申请号：US10912419
申请日：2004-08-04
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
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

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。

3. 发明授权

US07339593B1 Anisotropic optimization for texture filtering 有权
标题翻译：纹理过滤各向异性优化
公开(公告)号：US07339593B1
公开(公告)日：2008-03-04
申请号：US10672577
申请日：2003-09-26
申请人： Walter E. Donovan , Anders M. Kugler
发明人： Walter E. Donovan , Anders M. Kugler
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： Anisotropic optimization is a technique to reduce the number of texture samples anisotropically filtered to determine a texture value associated with a graphics fragment. Reducing the number of texture samples anisotropically filtered reduces the number of texture samples read from memory and speeds up the filter computation. A programmable bias is used to control the number of texture samples used during anisotropic filtering, permitting a user to determine a balance between improved texture map performance and anisotropic texture filtering quality.
摘要翻译：各向异性优化是减少各向异性过滤以确定与图形片段相关联的纹理值的纹理样本的数量的技术。减少各向异性滤波的纹理样本的数量减少了从存储器读取的纹理样本的数量，并加快了滤波器的计算。使用可编程偏置来控制在各向异性过滤期间使用的纹理样本的数量，允许用户确定改进的纹理贴图性能和各向异性纹理过滤质量之间的平衡。

4. 发明授权

US07167183B1 Reorganized anisotropic sampling order 有权
标题翻译：重组各向异性取样顺序
公开(公告)号：US07167183B1
公开(公告)日：2007-01-23
申请号：US10965069
申请日：2004-10-14
申请人： Walter E. Donovan , Anders M. Kugler , William P. Newhall, Jr. , Paul S. Heckbert
发明人： Walter E. Donovan , Anders M. Kugler , William P. Newhall, Jr. , Paul S. Heckbert
IPC分类号： G09G5/00
CPC分类号： G06T1/60 , G06T15/005
摘要： The current invention involves new systems and methods for reorganizing a texture sampling order that is used to read texels from a texel cache. When anisotropic filtering is used to process the texels read from the texel cache, the texels are read in an order based on a major axis alignment. Reorganizing texture sampling order to use the order based on the major axis alignment results in improved texel cache locality, thereby improving texel cache performance.
摘要翻译：本发明涉及用于重新组织纹理采样顺序的新系统和方法，其用于从纹素文件高速缓存读取纹理。当使用各向异性过滤处理从纹素文件高速缓存读取的纹素时，纹素以基于长轴对齐的顺序读取。重新组织纹理采样顺序以使用基于长轴对准的顺序，从而改善了纹理像素高速缓存的局部性，从而改善了纹理高速缓存的性能。

5. 发明授权

US07620210B1 Anisotropic optimization for texture filtering 有权
标题翻译：纹理过滤各向异性优化
公开(公告)号：US07620210B1
公开(公告)日：2009-11-17
申请号：US12015426
申请日：2008-01-16
申请人： Walter E. Donovan , Anders M. Kugler
发明人： Walter E. Donovan , Anders M. Kugler
IPC分类号： G06K9/00 , G09G5/00
CPC分类号： G06T11/001
摘要： Anisotropic optimization is a technique to reduce the number of texture samples anisotropically filtered to determine a texture value associated with a graphics fragment. Reducing the number of texture samples anisotropically filtered reduces the number of texture samples read from memory and speeds up the filter computation. A programmable bias is used to control the number of texture samples used during anisotropic filtering, permitting a user to determine a balance between improved texture map performance and anisotropic texture filtering quality.
摘要翻译：各向异性优化是减少各向异性过滤以确定与图形片段相关联的纹理值的纹理样本的数量的技术。减少各向异性滤波的纹理样本的数量减少了从存储器读取的纹理样本的数量，并加快了滤波器的计算。使用可编程偏置来控制在各向异性过滤期间使用的纹理样本的数量，允许用户确定改进的纹理贴图性能和各向异性纹理过滤质量之间的平衡。

6. 发明申请

US20080211827A1 FILTERING UNIT FOR FLOATING-POINT TEXTURE DATA 有权
标题翻译：浮动点纹理数据滤波单元
公开(公告)号：US20080211827A1
公开(公告)日：2008-09-04
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
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。

7. 发明授权

US07605822B1 Method and system for performing texture mapping across adjacent texture maps 有权
标题翻译：用于在相邻纹理贴图之间执行纹理映射的方法和系统
公开(公告)号：US07605822B1
公开(公告)日：2009-10-20
申请号：US11566669
申请日：2006-12-04
申请人： Anders M. Kugler
发明人： Anders M. Kugler
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A method and system for performing texture mapping across adjacent texture maps. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of determining whether a texel crosses a boundary of a first texture map, examining a first texture state identifier associated with the first texture map, and requesting for a second texture state identifier associated with a second texture map that is adjacent to the first texture map to enable traversal to the second texture map to access the texel if the first texture state identifier includes a mode indicative of wrapping to an adjacent texture map and texture adjacency information that points to a second texture map.
摘要翻译：用于在相邻纹理贴图之间执行纹理映射的方法和系统。具体地，本发明的一个实施例提出了一种方法，其包括以下步骤：确定纹素是否穿过第一纹理图的边界，检查与第一纹理图相关联的第一纹理状态标识符，以及请求第二纹理与第一纹理图相邻的第二纹理图相关联的状态标识符，以便如果第一纹理状态标识符包括指示相邻纹理贴图和纹理邻接信息的折叠的模式，则能够遍历第二纹理贴图以访问纹理图像指向第二个纹理贴图。

8. 发明授权

US08161252B1 Memory interface with dynamic selection among mirrored storage locations 有权
标题翻译：在镜像存储位置之间进行动态选择的存储器接口
公开(公告)号：US08161252B1
公开(公告)日：2012-04-17
申请号：US11269975
申请日：2005-11-08
申请人： Colyn S. Case , Anders M. Kugler , Peter Tong
发明人： Colyn S. Case , Anders M. Kugler , Peter Tong
IPC分类号： G06F13/00
CPC分类号： G06T1/60
摘要： Devices and methods provide data from multiple storage locations to a processor. A data block containing data required by a processor is stored in two or more locations, e.g., in a local memory and a system memory, both of which are accessible to the processor's memory interface. The memory interface directs each read request for mirrored data to one or another of the mirror locations. Selection of a mirror location to be read is based on substantially real-time information about which mirror location is best able to handle the request. For instance, the selection of a mirror location to access can be based at least in part on information about the level of activity on various buses that connect the processor to the mirror locations.
摘要翻译：设备和方法将数据从多个存储位置提供给处理器。包含处理器所需的数据的数据块被存储在两个或多个位置，例如在本地存储器和系统存储器中，这两者可以被处理器的存储器接口访问。存储器接口将镜像数据的每个读取请求指向一个或另一个镜像位置。要读取的镜像位置的选择基于关于哪个镜像位置最能够处理该请求的基本上实时的信息。例如，要访问的镜像位置的选择可以至少部分地基于关于将处理器连接到镜像位置的各种总线上的活动级别的信息。

9. 发明授权

US07924290B2 Method and system for processing texture samples with programmable offset positions 有权
标题翻译：用可编程偏移位置处理纹理样本的方法和系统
公开(公告)号：US07924290B2
公开(公告)日：2011-04-12
申请号：US11755531
申请日：2007-05-30
申请人： Anders M. Kugler , Alexander L. Minkin , William P. Newhall, Jr. , Christopher J. Migdal , Pemith R. Fernando , Lup-Yen Peter Young , Mehmet Cem Cebenoyan , Yury Y. Uralsky
发明人： Anders M. Kugler , Alexander L. Minkin , William P. Newhall, Jr. , Christopher J. Migdal , Pemith R. Fernando , Lup-Yen Peter Young , Mehmet Cem Cebenoyan , Yury Y. Uralsky
IPC分类号： G06T17/00 , G06T11/40 , G09G5/00 , G09G5/02 , G06K9/40 , G06K9/36 , G06K9/32
CPC分类号： G06T15/04
摘要： A method and system for performing a texture operation with user-specified offset positions are disclosed. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of deriving a first destined texel position based on an original sample position associated with a pixel projected in a texture map and a first offset position specified by a user and fetching texel attributes at the first destined texel position for the texture operation.
摘要翻译：公开了一种用于执行用户指定的偏移位置的纹理操作的方法和系统。具体地，本发明的一个实施例提出了一种方法，其包括以下步骤：基于与投影在纹理图中的像素和由用户指定的第一偏移位置相关联的原始样本位置导出第一目标纹理位置，并且获取纹理操作的第一个目标纹素像素位置的纹素属性。

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