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1. 发明授权

US07439988B1 Apparatus, system, and method for clipping graphics primitives with respect to a clipping plane 有权
标题翻译：相对于裁剪平面剪切图形基元的装置，系统和方法
公开(公告)号：US07439988B1
公开(公告)日：2008-10-21
申请号：US11295200
申请日：2005-12-05
申请人： Vimal S. Parikh , Henry Packard Moreton , Lordson L. Yue
发明人： Vimal S. Parikh , Henry Packard Moreton , Lordson L. Yue
IPC分类号： G09G5/00
CPC分类号： G06T15/005 , G06T15/30
摘要： Apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a clipping module includes a mapping unit and a clipping engine that is connected to the mapping unit. The mapping unit is configured to map a graphics primitive onto a canonical representation that is defined with respect to a clipping plane. The clipping engine is configured to clip the graphics primitive with respect to the clipping plane based on the canonical representation.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，剪辑模块包括连接到映射单元的映射单元和剪辑引擎。映射单元被配置为将图形基元映射到相对于剪切平面定义的规范表示。剪辑引擎被配置为基于规范表示来相对于裁剪平面剪切图形原语。

2. 发明授权

US07542046B1 Programmable clipping engine for clipping graphics primitives 有权
标题翻译：可编程剪辑引擎，用于剪切图形原语
公开(公告)号：US07542046B1
公开(公告)日：2009-06-02
申请号：US11475599
申请日：2006-06-26
申请人： Lordson L. Yue , Vimal S. Parikh , Andrew J. Tao
发明人： Lordson L. Yue , Vimal S. Parikh , Andrew J. Tao
IPC分类号： G06F12/00
CPC分类号： G06T1/60
摘要： An apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a graphics processing apparatus includes a clipping unit, a read-only memory that is connected to the clipping unit, a read-write memory that is connected to the clipping unit, and an addressing unit that is connected to the read-only memory and the read-write memory. The read-only memory is configured to store a clipping program, and the read-write memory is configured to store a patch program. The addressing unit is configured to selectively address one of the read-only memory and the read-write memory based on a set of input conditions.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，图形处理装置包括剪切单元，连接到剪切单元的只读存储器，连接到剪切单元的读写存储器，以及连接到读取存储器的寻址单元，只读存储器和读写存储器。只读存储器被配置为存储剪切程序，并且读写存储器被配置为存储补丁程序。寻址单元被配置为基于一组输入条件来选择性地寻址只读存储器和读写存储器中的一个。

3. 发明授权

US08432406B1 Apparatus, system, and method for clipping graphics primitives with accelerated context switching 有权
标题翻译：用于通过加速上下文切换来剪切图形基元的装置，系统和方法
公开(公告)号：US08432406B1
公开(公告)日：2013-04-30
申请号：US12182588
申请日：2008-07-30
申请人： Lordson L. Yue , Vimal S. Parikh
发明人： Lordson L. Yue , Vimal S. Parikh
IPC分类号： G06T1/20
CPC分类号： G09G5/363 , G06T1/20
摘要： An apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a graphics processing apparatus includes a clipping unit that is configured to produce and issue ni initial outputs based on execution of a set of clipping operations, wherein ni represents the number of the initial outputs that are issued by the clipping unit prior to context switching, and the initial outputs partially define a clipped graphics primitive. The graphics processing apparatus also includes a control unit connected to the clipping unit. The control unit is configured to preserve an initial execution state of the clipping unit in response to an initial command for context switching, wherein the initial execution state is preserved based on ni.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，图形处理装置包括剪辑单元，其被配置为基于执行一组剪切操作来产生和发出ni初始输出，其中ni表示由剪辑单元在之前发出的初始输出的数量上下文切换，并且初始输出部分地限定剪切的图形原语。图形处理装置还包括连接到裁剪单元的控制单元。控制单元被配置为响应于用于上下文切换的初始命令来保留剪切单元的初始执行状态，其中基于ni来保留初始执行状态。

4. 发明授权

US07420572B1 Apparatus, system, and method for clipping graphics primitives with accelerated context switching 有权
标题翻译：用于通过加速上下文切换来剪切图形基元的装置，系统和方法
公开(公告)号：US07420572B1
公开(公告)日：2008-09-02
申请号：US11313085
申请日：2005-12-19
申请人： Lordson L. Yue , Vimal S. Parikh
发明人： Lordson L. Yue , Vimal S. Parikh
IPC分类号： G09G5/00 , G06T1/20
CPC分类号： G09G5/363 , G06T1/20
摘要： An apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a graphics processing apparatus includes a clipping unit that is configured to issue an initial set of outputs based on execution of a set of clipping operations. The graphics processing apparatus also includes a control unit that is connected to the clipping unit. The control unit is configured to preserve an initial execution state of the clipping unit in response to an initial command for context switching, and the initial execution state is preserved based on a number of the initial set of outputs.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，图形处理装置包括限幅单元，其被配置为基于一组剪切操作的执行来发出初始输出集合。图形处理装置还包括连接到剪辑单元的控制单元。控制单元被配置为响应于用于上下文切换的初始命令来保留剪切单元的初始执行状态，并且基于初始输出集合的数量来保留初始执行状态。

5. 发明授权

US07292254B1 Apparatus, system, and method for clipping graphics primitives with reduced sensitivity to vertex ordering 有权
标题翻译：用于削减对顶点排序灵敏度降低的图形图元的装置，系统和方法
公开(公告)号：US07292254B1
公开(公告)日：2007-11-06
申请号：US11294791
申请日：2005-12-05
申请人： Lordson L. Yue , Vimal S. Parikh , Andrew J. Tao
发明人： Lordson L. Yue , Vimal S. Parikh , Andrew J. Tao
IPC分类号： G09G5/00 , G06T1/00
CPC分类号： G06T15/30
摘要： Apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a graphics processing apparatus includes a mapping unit and a clipping engine that is connected to the mapping unit. The mapping unit is configured to map a graphics primitive onto a canonical representation. The clipping engine is configured to perform a set of clipping operations with respect to the canonical representation.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，图形处理装置包括连接到映射单元的映射单元和剪辑引擎。映射单元被配置为将图形原语映射到规范表示。剪辑引擎被配置为执行关于规范表示的一组剪切操作。

6. 发明授权

US07714877B1 Apparatus, system, and method for determining clipping distances 有权
标题翻译：用于确定剪切距离的装置，系统和方法
公开(公告)号：US07714877B1
公开(公告)日：2010-05-11
申请号：US11312965
申请日：2005-12-19
申请人： Vimal S. Parikh , Lordson L. Yue
发明人： Vimal S. Parikh , Lordson L. Yue
IPC分类号： G09G5/00
CPC分类号： G09G5/363 , G06T15/30 , G09G2360/06
摘要： An apparatus, system, and method for determining clipping distances are described. In one embodiment, a graphics processing apparatus includes a clipping unit and an instruction memory connected to the clipping unit. The instruction memory includes a clipping program to direct the clipping unit to perform clipping operations. The clipping program includes a clipping distance instruction to determine a clipping distance with respect to any of a set of clipping planes.
摘要翻译：描述用于确定剪切距离的装置，系统和方法。在一个实施例中，图形处理装置包括剪切单元和连接到剪辑单元的指令存储器。指令存储器包括用于指示剪切单元进行剪切操作的剪切程序。剪切程序包括剪切距离指令，用于确定相对于一组剪切平面中的任何一个的剪切距离。

7. 发明授权

US07616218B1 Apparatus, system, and method for clipping graphics primitives 有权
标题翻译：用于剪切图形图元的装置，系统和方法
公开(公告)号：US07616218B1
公开(公告)日：2009-11-10
申请号：US11295355
申请日：2005-12-05
申请人： Vimal S. Parikh , Andrew J. Tao , Lordson L. Yue
发明人： Vimal S. Parikh , Andrew J. Tao , Lordson L. Yue
IPC分类号： G09G5/00
CPC分类号： G06F12/1027
摘要： Apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a clipping module includes a clipping engine and a clipping controller connected to the clipping engine. The clipping controller is configured to determine which edges of an input graphics primitive intersect a first clipping plane. The clipping controller is configured to direct the clipping engine to clip, with respect to the first clipping plane, a first pair of edges of the input graphics primitive in response to determining that the first pair of edges intersect the first clipping plane.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，剪辑模块包括剪辑引擎和连接到剪辑引擎的剪辑控制器。剪辑控制器被配置为确定输入图形基元的哪些边缘与第一剪切平面相交。剪辑控制器被配置为响应于确定第一对边缘与第一剪切平面相交而引导剪辑引擎相对于第一剪辑平面剪辑输入图形图元的第一对边缘。

8. 发明授权

US07292242B1 Clipping with addition of vertices to existing primitives 有权
标题翻译：对现有原语加上顶点进行剪切
公开(公告)号：US07292242B1
公开(公告)日：2007-11-06
申请号：US10917093
申请日：2004-08-11
申请人： Craig M. Wittenbrink , Henry Packard Moreton , Douglas A. Voorhies , John S. Montrym , Vimal S. Parikh
发明人： Craig M. Wittenbrink , Henry Packard Moreton , Douglas A. Voorhies , John S. Montrym , Vimal S. Parikh
IPC分类号： G06T15/40
CPC分类号： G06T15/30
摘要： Clipping techniques introduce additional vertices into existing primitives without requiring creation of new primitives. For an input triangle with one vertex on the invisible side of a clipping surface, a quadrangle can be defined. The vertices of the quadrangle are the two internal vertices of the input triangle and two clipped vertices. For determining attribute values for pixel shading, three vertices of the quadrangle are selected, and a parameter value for an attribute equation is computed using the three selected vertices. For determining pixel coverage for the quadrangle, the three edges that do not correspond to the edge created by clipping are used.
摘要翻译：剪切技术将额外的顶点引入现有的基元，而不需要创建新的基元。对于在剪切表面的不可见侧有一个顶点的输入三角形，可以定义四边形。四边形的顶点是输入三角形的两个内部顶点和两个剪切顶点。为了确定像素阴影的属性值，选择四边形的三个顶点，并且使用三个选定的顶点来计算属性方程的参数值。为了确定四边形的像素覆盖率，使用与削波产生的边缘不对应的三个边。

9. 发明授权

US07705845B1 Clipping graphics primitives with deferred derivation of vertex attributes 有权
标题翻译：用顶点属性的延迟派生来剪切图形基元
公开(公告)号：US07705845B1
公开(公告)日：2010-04-27
申请号：US11445726
申请日：2006-06-01
申请人： Vimal S. Parikh , Henry Packard Moreton , Andrew J. Tao
发明人： Vimal S. Parikh , Henry Packard Moreton , Andrew J. Tao
IPC分类号： G06T15/40
CPC分类号： G06T15/30
摘要： Apparatus, system, and method for clipping graphics primitives are described. In one embodiment, a graphics processing apparatus includes a clipping engine and an output unit connected to the clipping engine. The clipping engine is configured to clip an input graphics primitive with respect to a set of clipping planes to derive spatial attributes of new vertices. The output unit is configured to identify a subset of the new vertices that defines an output graphics primitive, and the output unit is configured to derive non-spatial attributes of the subset of the new vertices to produce the output graphics primitive.
摘要翻译：描述用于剪切图形基元的装置，系统和方法。在一个实施例中，图形处理装置包括剪辑引擎和连接到剪辑引擎的输出单元。剪辑引擎被配置为相对于一组剪切平面剪切输入图形原语以导出新顶点的空间属性。输出单元被配置为识别限定输出图形基元的新顶点的子集，并且输出单元被配置为导出新顶点的子集的非空间属性以产生输出图形原语。

10. 发明授权

US07999817B1 Buffering unit to support graphics processing operations 有权
标题翻译：缓冲单元支持图形处理操作
公开(公告)号：US07999817B1
公开(公告)日：2011-08-16
申请号：US11556051
申请日：2006-11-02
申请人： Andrew J. Tao , Vimal S. Parikh , Yan Yan Tang
发明人： Andrew J. Tao , Vimal S. Parikh , Yan Yan Tang
IPC分类号： G06T1/60
CPC分类号： G06T1/00
摘要： An apparatus and method for buffering graphics data are described. In one embodiment, a graphics processing apparatus includes a memory and a buffering unit that is connected to the memory. The buffering unit is configured to buffer vertex attributes en route to the memory. The buffering unit is configured to coalesce a subset of the vertex attributes to be stored within a common range of addresses in the memory, and the buffering unit is configured to issue a single write request to the memory on behalf of the subset of the vertex attributes.
摘要翻译：描述用于缓冲图形数据的装置和方法。在一个实施例中，图形处理装置包括存储器和连接到存储器的缓冲单元。缓冲单元被配置为缓冲到存储器的途中的顶点属性。缓冲单元被配置为将要存储在存储器中的公共地址范围内的顶点属性的子集合并且缓冲单元被配置为代表顶点属性的子集向存储器发出单个写入请求。

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