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1. 发明授权

US06559856B1 Apparatus for fixed-point graphics and method therefor 失效
标题翻译：用于定点图形的装置及其方法
公开(公告)号：US06559856B1
公开(公告)日：2003-05-06
申请号：US09392835
申请日：1999-09-09
申请人： Gordon Clyde Fossum , Thomas Winters Fox , Bimal Poddar , Harald Jean Smit
发明人： Gordon Clyde Fossum , Thomas Winters Fox , Bimal Poddar , Harald Jean Smit
IPC分类号： G09G502
CPC分类号： H03M7/24
摘要： Lighting parameters are received as floating-point numbers from a software application via an application programming interface (API). The floating-point numbers are converted to a fixed-point representation having a preselected number of bits. The number of bits is selected in accordance with a predetermined number of bits required by a frame buffer, which thus establishes the number of color values supported by the graphics display system. In order to preserve accuracy to within the number of bits in each value in the frame buffer, the representation in the fixed-point engine includes additional bits relative to the number of bits in the color values sent to the frame buffer. Floating-point values received via the graphics API are converted to fixed-point representations by first prescaling the floating-point values. The fixed-point operations generate a lighting signal value in accordance with a lighting model, and the number of bits therein is reduced to correspond to the number of bits in each data value required by the frame buffer, and the lighting data values are sent as color values to the frame buffer.
摘要翻译：照明参数通过应用程序编程接口（API）从软件应用程序接收为浮点数。浮点数被转换成具有预选位数的定点表示。根据帧缓冲器所需的预定位数来选择比特数，从而建立由图形显示系统支持的颜色值的数量。为了将精度保持在帧缓冲器中的每个值的位数内，定点引擎中的表示包括相对于发送到帧缓冲器的颜色值中的位数的附加位。通过首先对浮点值进行预分压，通过图形API接收的浮点值被转换为定点表示。定点操作根据照明模型产生照明信号值，并且其中的比特数减少以对应于帧缓冲器所需的每个数据值中的比特数，并且点亮数据值被发送为颜色值到帧缓冲区。

2. 发明授权

US06389485B1 Graphics adapter capable of supporting lighting models from multiple application programming interfaces within a graphics system 有权
标题翻译：图形适配器能够支持图形系统内多个应用编程接口的照明模型
公开(公告)号：US06389485B1
公开(公告)日：2002-05-14
申请号：US09165084
申请日：1998-10-02
申请人： Iliese Claire Chelstowski , Thomas Winters Fox , Bimal Poddar , Harald Jean Smit
发明人： Iliese Claire Chelstowski , Thomas Winters Fox , Bimal Poddar , Harald Jean Smit
IPC分类号： G06T1550
CPC分类号： G06T15/506
摘要： A graphics adapter capable of supporting lighting models from multiple Application Programming, Interfaces (APIs) within a graphics system is disclosed. The graphics adapter includes a dot product machine and a control means. The dot product machine can perform geometry computations regardless of the API format in which the graphics data is expressed. The control means is utilized to multiplex between a set of graphics data having a first API format and a set of graphics data having a second API format in order to determine the inputs of the dot product machine. As a result, lighting models from multiple APIs can be supported by a single graphics adapter.
摘要翻译：公开了一种能够支持图形系统内的多个应用程序编程，接口（API）的照明模型的图形适配器。图形适配器包括点产品机器和控制装置。点产品机器可以执行几何计算，而不管其中表示图形数据的API格式如何。控制装置用于在具有第一API格式的一组图形数据和具有第二API格式的一组图形数据之间进行复用，以便确定点积机器的输入。因此，单个图形适配器可以支持来自多个API的照明模型。

3. 发明授权

US5818469A Graphics interface processing methodology in symmetric multiprocessing or distributed network environments 失效
标题翻译：对称多处理或分布式网络环境中的图形接口处理方法
公开(公告)号：US5818469A
公开(公告)日：1998-10-06
申请号：US827740
申请日：1997-04-10
申请人： John Joseph Lawless , Bimal Poddar , Alice Elizabeth Putney , Harald Jean Smit
发明人： John Joseph Lawless , Bimal Poddar , Alice Elizabeth Putney , Harald Jean Smit
IPC分类号： G06F9/46 , G06F9/48 , G06T1/20 , G06F15/00
CPC分类号： G06F9/4843 , G06F9/52 , G06T1/20
摘要： A method and implementing multiprocessor computer system 200 in which graphics applications 101 are executed in conjunction with a graphics interface 103 to graphics hardware 115. The methodology is also applicable to an implementing distributed network system. A master thread 105, or master node in a distributed network system, receives commands from a graphics application 101 and assembles 313 the commands into workgroups with an associated workgroup control block 315 and a synchronization tag 317. For each workgroup, the master thread flags changes in the associated workgroup control block. At the end of each workgroup, the master thread copies the changed attributes into the associated workgroup control block 319. The workgroup control blocks are scanned 403 by the rendering threads, or rendering node in a distributed network system, and unprocessed workgroups are locked 406, and the rendering threads attribute state is updated 413 from the previous workgroup control blocks. Once the rendering thread has updated its attributes, it has the necessary state to independently process the workgroup, thus allowing parallel execution. A synchronizer thread reorders the graphics datastream, created by the rendering threads, using the synchronization tags and sequentially sends the resultant data to the graphics hardware 115.
摘要翻译：一种方法和实现多处理器计算机系统200，其中图形应用程序101与图形接口103一起执行到图形硬件115.该方法还可应用于实现的分布式网络系统。分布式网络系统中的主线程105或主节点从图形应用程序101接收命令，并将命令组装成具有相关联的工作组控制块315和同步标签317的工作组。对于每个工作组，主线程标志改变在相关联的工作组控制块中。在每个工作组的最后，主线程将改变的属性复制到相关联的工作组控制块319中。由分布式网络系统中的呈现线程或呈现节点扫描工作组控制块403，并且未处理的工作组被锁定406，并且从先前的工作组控制块更新413渲染线程属性状态。一旦渲染线程已更新其属性，它具有独立处理工作组的必要状态，从而允许并行执行。同步器线程使用同步标签重新排列由渲染线程创建的图形数据流，并将结果数据顺序地发送到图形硬件115。

4. 发明申请

US20150070371A1 TECHNIQUES FOR REDUCING ACCESSES FOR RETRIEVING TEXTURE IMAGES 有权
标题翻译：减少纹理图像检索的技术
公开(公告)号：US20150070371A1
公开(公告)日：2015-03-12
申请号：US14020716
申请日：2013-09-06
申请人： Bimal Poddar
发明人： Bimal Poddar
IPC分类号： G06T1/60 , G06T11/00
CPC分类号： G06T1/60 , G06T1/20 , G06T9/00 , G06T11/001
摘要： Various embodiments are generally directed to techniques for reducing storage access bandwidth requirements in retrieving a texture image from a storage for applying textures to rendered objects by rendering the texture image itself into the storage to reduce the storage space in which the texture image is stored and to arrange portions of the texture image to be retrieved with fewer accesses. A device to render images includes a processor component; a color analyzer to determine a clear color of a texture image stored as source texture data; and a rendering routine to render the texture image into a storage as reduced texture data, the rendering routine to selectively store in the reduced texture data pixel color values retrieved from the source texture data that are associated with pixels of the texture image not colored with the clear color. Other embodiments are described and claimed.
摘要翻译：各种实施例通常涉及用于通过将纹理图像本身渲染到存储器中以减少其中存储纹理图像的存储空间来减少从用于将纹理应用于渲染对象的存储器中检索纹理图像的存储访问带宽需求的技术，并且以更少的访问方式排列要检索的纹理图像的部分。用于渲染图像的设备包括处理器组件; 确定作为源纹理数据存储的纹理图像的清晰颜色的颜色分析器; 以及用于将纹理图像呈现为作为减少的纹理数据的存储的呈现例程，所述渲染程序选择性地存储从与未被着色的纹理图像的像素相关联的源纹理数据中检索的缩小纹理数据像素颜色值清晰的颜色。描述和要求保护其他实施例。

5. 发明授权

US08259135B2 Rotated rendering and locking support for tablet computers and portrait displays 有权
标题翻译：平板电脑和纵向显示器的旋转渲染和锁定支持
公开(公告)号：US08259135B2
公开(公告)日：2012-09-04
申请号：US11486935
申请日：2006-07-13
申请人： Bimal Poddar
发明人： Bimal Poddar
IPC分类号： G09G5/00
CPC分类号： G06T1/60
摘要： Apparatus, systems and methods for handling portrait mode oriented display surfaces without requiring expensive hardware in the display sub-system are disclosed. For example, an apparatus is disclosed such that the rendering of graphics data to the portrait mode display surfaces is redirected at rendering time such that there is no need for adding complicated hardware in the display part of the graphics adapter in order to handle conventional displays—all of which have no circuitry to deal with data natively stored in a portrait mode surface. Additionally, an apparatus to handle direct surface access of a surface through a surface lock which has already been rotated is already described. This can either be done by copying of surface data or by an optimized proposed apparatus which eliminates this copy. Other implementations are also disclosed.
摘要翻译：公开了用于处理纵向模式定向显示表面而不需要显示子系统中昂贵硬件的装置，系统和方法。例如，公开了一种装置，使得将图形数据呈现给肖像模式显示表面在渲染时被重定向，使得不需要在图形适配器的显示部分中添加复杂的硬件，以便处理常规的显示 - 所有这些都没有电路来处理本地存储在肖像模式表面中的数据。此外，已经描述了通过已经旋转的表面锁来处理表面的直接表面访问的装置。这可以通过复制表面数据或通过消除该副本的优化的建议装置来完成。还公开了其他实施方式。

6. 发明申请

US20070146366A1 System and method for rasterization order independent line stipple 审中-公开
标题翻译：光栅化顺序独立线条的系统和方法
公开(公告)号：US20070146366A1
公开(公告)日：2007-06-28
申请号：US11317692
申请日：2005-12-23
申请人： Avinash Seetharamaiah , Bimal Poddar , William Sadler
发明人： Avinash Seetharamaiah , Bimal Poddar , William Sadler
IPC分类号： G06T11/20
CPC分类号： G06T11/203
摘要： A method and apparatus for rasterizing a line, including determining a start point and initial line step count of the line, determining a line stipple pattern position and repeat count at each point of the line based on the start point of the line and initial line step count and rasterizing the line in an order independent manner. In some embodiments, the line may be rasterized backwards. An approximate reciprocal value for the repeat count may be used.
摘要翻译：一种用于光栅化线的方法和装置，包括确定线的起始点和初始线步数，基于线的起始点和初始线步骤确定线点模式位置和在线的每个点的重复计数以独立的顺序计算和光栅化线。在一些实施例中，线可以向后光栅化。可以使用重复计数的近似倒数值。

7. 发明申请

US20050231522A1 Efficient detection of texture sharing between multiple contexts 审中-公开
标题翻译：高效检测多个上下文之间的纹理共享
公开(公告)号：US20050231522A1
公开(公告)日：2005-10-20
申请号：US11150553
申请日：2005-06-10
申请人： Bimal Poddar
发明人： Bimal Poddar
IPC分类号： G09G5/00
CPC分类号： G06T15/005
摘要： A technique for detecting texture sharing between multiple contexts having unique ID's includes obtaining a texture usage mask of a subject texture and a context ID of a subject context. A first logic operation with the texture usage mask of the subject texture and the context ID of the subject context is performed to produce a resultant value. The subject texture is determined not to be shared by another context with the subject context upon the resultant value being equal to a first predetermined value. The subject texture is determined to be shared by another context with the subject context upon the resultant value being equal to a second predetermined value which is different from the first predetermined value. The texture usage mask of a subject texture may be revised prior to the subject texture being used by another context by performing a second logic operation with the texture usage mask and a context ID of another context to produce a resultant new texture usage mask for the subject texture. The texture usage mask of a subject texture may be revised upon the subject texture no longer being used by a particular context by performing a third logic operation with the texture usage mask and a context ID of the particular context to produce a resultant new texture usage mask for the subject texture.
摘要翻译：用于检测具有唯一ID的多个上下文之间的纹理共享的技术包括获得对象纹理的纹理使用掩码和主题上下文的上下文ID。执行具有对象纹理的纹理使用掩码和对象上下文的上下文ID的第一逻辑运算以产生结果值。当所得到的值等于第一预定值时，确定主题纹理不被与主题上下文的另一上下文共享。当所得到的值等于与第一预定值不同的第二预定值时，被摄体纹理被确定为与另一上下文与被摄体上下文共享。可以在通过使用纹理使用掩码和另一上下文的上下文ID的第二逻辑运算之前，通过另一上下文使用对象纹理之前修改对象纹理的纹理使用掩码，以产生用于该对象的结果新纹理使用掩码质地。可以通过使用纹理使用掩码和特定上下文的上下文ID执行第三逻辑运算来对主体纹理不再被特定上下文使用来修改对象纹理的纹理使用掩码，以产生所得到的新纹理使用掩码为主题纹理。

8. 发明申请

US20160364898A1 OPTIMIZING FOR RENDERING WITH CLEAR COLOR 有权
标题翻译：优化渲染与清晰的颜色
公开(公告)号：US20160364898A1
公开(公告)日：2016-12-15
申请号：US14737302
申请日：2015-06-11
申请人： Bimal Poddar , Prasoonkumar Surti , Rahul P. Sathe
发明人： Bimal Poddar , Prasoonkumar Surti , Rahul P. Sathe
IPC分类号： G06T15/00 , G06T19/20 , G06T15/50 , G06T1/60 , G06T15/04
CPC分类号： G06T15/005 , G06T1/60 , G06T15/04 , G06T15/506 , G06T19/20 , G06T2200/04 , G06T2200/28 , G06T2210/62
摘要： Embodiments provide for a graphics processing apparatus comprising render logic to detect rendering operations that will result in framebuffer having the same data as the initial clear color value and morphing such rendering operations to optimizations that are typically done for initial clearing of the framebuffer.
摘要翻译：实施例提供了一种包括渲染逻辑的图形处理装置，用于检测将导致具有与初始清除颜色值相同的数据的帧缓冲器的渲染操作，并将这种渲染操作变形为通常对初始清除帧缓冲器而进行的优化。

9. 发明申请

US20160086299A1 Position-Only Shading Pipeline 有权
标题翻译：仅定位着色管道
公开(公告)号：US20160086299A1
公开(公告)日：2016-03-24
申请号：US14494653
申请日：2014-09-24
申请人： Saurabh Sharma , Subramaniam Maiyuran , Thomas A. Piazza , Kalyan K. Bhiravabhatla , Peter L. Doyle , Paul A. Johnson , Bimal Poddar , Jon N. Hasselgren , Carl J. Munkberg , Tomas G. Akenine-Moller , Harri Syrja , Kevin Rogovin , Robert L. Farrell
发明人： Saurabh Sharma , Subramaniam Maiyuran , Thomas A. Piazza , Kalyan K. Bhiravabhatla , Peter L. Doyle , Paul A. Johnson , Bimal Poddar , Jon N. Hasselgren , Carl J. Munkberg , Tomas G. Akenine-Moller , Harri Syrja , Kevin Rogovin , Robert L. Farrell
IPC分类号： G06T1/20 , G06T15/40
CPC分类号： G06T1/20 , G06T15/40 , G06T15/405 , G06T15/503 , G09G5/393
摘要： In position-only shading, two geometry pipes exist, a trimmed down version called the Cull Pipe and a full version called the Replay Pipe. Thus, the Cull Pipe executes the position shaders in parallel with the main application, but typically generates the critical results much faster as it fetches and shades only the position attribute of the vertices and avoids the rasterization as well as the rendering of pixels for the frame buffer. Furthermore, the Cull Pipe uses these critical results to compute visibility information for all the triangles whether they are culled or not. On the other hand, the Replay Pipe consumes the visibility information to skip the culled triangles and shades only the visible triangles that are finally passed to the rasterization phase. Together the two pipes can hide the long cull runs of discarded triangles and can complete the work faster in some embodiments.
摘要翻译：在仅位置阴影中，存在两个几何管道，一个称为Cull管道的修剪版本以及称为Replay Pipe的完整版本。因此，Cull管道与主应用程序并行执行位置着色器，但是通常会生成关键结果的速度要快得多，因为它仅获取和仅阴影顶点的位置属性，并避免光栅化以及帧的像素渲染缓冲。此外，Cull管道使用这些关键结果来计算所有三角形的可见性信息，无论它们是否被淘汰。另一方面，重放管道消耗可见性信息来跳过被剔除的三角形，并仅遮蔽最终传递到光栅化阶段的可见三角形。两个管道一起可以隐藏丢弃的三角形的长的剔除运行，并且在一些实施例中可以更快地完成工作。

10. 发明申请

US20140139512A1 Recording the Results of Visibility Tests at the Input Geometry Object Granularity 有权
标题翻译：记录输入几何对象粒度的可见性测试结果
公开(公告)号：US20140139512A1
公开(公告)日：2014-05-22
申请号：US13682967
申请日：2012-11-21
申请人： Thomas A. Piazza , Bimal Poddar , Peter L. Doyle
发明人： Thomas A. Piazza , Bimal Poddar , Peter L. Doyle
IPC分类号： G06T15/00
CPC分类号： G06T15/005 , G06T15/40
摘要： According to some embodiments of the present invention, pixel throughput may be improved by performing depth tests and recording the results on the granularity of an input geometry object. An input geometry object is any object within the depiction represented by a primitive, such as a triangle within an input triangle list or a patch within an input patch list.
摘要翻译：根据本发明的一些实施例，可以通过执行深度测试并将结果记录在输入几何对象的粒度上来改善像素吞吐量。输入几何对象是由基元表示的描绘内的任何对象，例如输入三角形列表中的三角形或输入修补程序列表中的修补程序。

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