公开(公告)号：US20140184612A1

公开(公告)日：2014-07-03

申请号：US13732313

申请日：2012-12-31

申请人： NVIDIA CORPORATION

发明人： Jonathan Dunaisky ,  David Kirk McAllister ,  Craig McKnight

IPC分类号： G06T1/20 ,  G06T9/00

CPC分类号： G06T9/00 ,  H04N19/426

摘要： A method, in one embodiment, can include performing difference transformation of image samples. In addition, the method can also include performing length selection. Furthermore; the method can include performing packing that includes utilizing varying sized bit fields to produce a compressed representation.

摘要翻译： 在一个实施例中，一种方法可以包括执行图像样本的差分变换。 此外，该方法还可以包括执行长度选择。 此外; 该方法可以包括执行包括利用不同大小的位字段以产生压缩表示的包装。

公开(公告)号：US09607407B2

公开(公告)日：2017-03-28

申请号：US13732313

申请日：2012-12-31

申请人： NVIDIA Corporation

发明人： Jonathan Dunaisky ,  David Kirk McAllister ,  William Craig McKnight

IPC分类号： G06T9/00 ,  G06T1/60 ,  H04N19/426

CPC分类号： G06T9/00 ,  H04N19/426

摘要： A method, in one embodiment, can include performing difference transformation of image samples. In addition, the method can also include performing length selection. Furthermore; the method can include performing packing that includes utilizing varying sized bit fields to produce a compressed representation.

公开(公告)号：US20130249897A1

公开(公告)日：2013-09-26

申请号：US13727965

申请日：2012-12-27

申请人： NVIDIA CORPORATION

发明人： Jonathan Dunaisky ,  David Kirk McAllister ,  Steven E. Molnar ,  Narayan Kulshrestha ,  Rui Bastos ,  Joseph Detmer ,  William Craig McKnight

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T9/00 ,  G09G5/363 ,  G09G5/39 ,  G09G2340/02 ,  G09G2340/10 ,  G09G2360/06 ,  G09G2360/121 ,  G09G2360/122 ,  H04N19/426

摘要： A method for compressing framebuffer data is presented. The method includes determining a reduction ratio for framebuffer data in a tile including multiple samples. The reduction ratio determined is independent of the sampling mode, where the sampling mode is the number of samples within each pixel in the tile. The method further includes comparing a first portion of the framebuffer data for each of the multiple samples to determine an equality comparison result and also comparing a second portion of the framebuffer data for each one of the multiple samples to compute per-channel differences for each one of the multiple samples and testing the per-channel differences against a threshold value to determine a threshold comparison result. Finally, the method comprises compressing the framebuffer data for the tile based on the reduction ratio, the equality comparison result and the threshold comparison result to produce output framebuffer data for the tile.

摘要翻译： 提出了一种压缩帧缓冲器数据的方法。 该方法包括确定包括多个样本的瓦片中的帧缓冲器数据的缩小率。 确定的减小比率与采样模式无关，其中采样模式是瓦片中每个像素内的采样数。 该方法还包括比较多个样本中的每一个的帧缓冲器数据的第一部分以确定相等比较结果，并且还比较多个样本中的每一个样本的帧缓冲器数据的第二部分，以计算每个样本的每个信道差异 并且测试每个通道的差异与阈值以确定阈值比较结果。 最后，该方法包括基于缩小比率，等式比较结果和阈值比较结果压缩瓦片的帧缓冲器数据，以产生瓦片的输出帧缓冲器数据。

公开(公告)号：US09530189B2

公开(公告)日：2016-12-27

申请号：US13727965

申请日：2012-12-27

申请人： NVIDIA Corporation

发明人： Jonathan Dunaisky ,  David Kirk McAllister ,  Steven E. Molnar ,  Narayan Kulshrestha ,  Rui Bastos ,  Joseph Detmer ,  William Craig McKnight

IPC分类号： G06T15/30 ,  G09G5/00 ,  G09G5/02 ,  G03F3/08 ,  G06K9/00 ,  G06K9/40 ,  G06K9/36 ,  G09G5/36 ,  G06T5/00 ,  G06T9/00 ,  H04N19/426 ,  G09G5/39

CPC分类号： G06T5/002 ,  G06T9/00 ,  G09G5/363 ,  G09G5/39 ,  G09G2340/02 ,  G09G2340/10 ,  G09G2360/06 ,  G09G2360/121 ,  G09G2360/122 ,  H04N19/426

摘要： A method for compressing framebuffer data is presented. The method includes determining a reduction ratio for framebuffer data in a tile including multiple samples. The reduction ratio determined is independent of the sampling mode, where the sampling mode is the number of samples within each pixel in the tile. The method further includes comparing a first portion of the framebuffer data for each of the multiple samples to determine an equality comparison result and also comparing a second portion of the framebuffer data for each one of the multiple samples to compute per-channel differences for each one of the multiple samples and testing the per-channel differences against a threshold value to determine a threshold comparison result. Finally, the method comprises compressing the framebuffer data for the tile based on the reduction ratio, the equality comparison result and the threshold comparison result to produce output framebuffer data for the tile.

摘要翻译： 提出了一种压缩帧缓冲器数据的方法。 该方法包括确定包括多个样本的瓦片中的帧缓冲器数据的缩小率。 确定的减小比率与采样模式无关，其中采样模式是瓦片中每个像素内的采样数。 该方法还包括比较多个样本中的每一个的帧缓冲器数据的第一部分以确定相等比较结果，并且还比较多个样本中的每一个样本的帧缓冲器数据的第二部分，以计算每个样本的每个信道差异 并且测试每个通道的差异与阈值以确定阈值比较结果。 最后，该方法包括基于缩小比率，等式比较结果和阈值比较结果压缩瓦片的帧缓冲器数据，以产生瓦片的输出帧缓冲器数据。