公开(公告)号：WO2013130303A1

公开(公告)日：2013-09-06

申请号：PCT/US2013/026702

申请日：2013-02-19

Applicant: APPLE INC.

Inventor： TRIPATHI, Brijesh ,  OKRUHLICA, Craig M. ,  HARPER, John S. ,  SWEN, Steve

IPC: G09G5/02 ,  G06K9/00 ,  G06K9/40

CPC classification number: H04N9/68

Abstract: Techniques are disclosed relating to additive color systems. In one embodiment, an apparatus is disclosed that includes a device configured to operate on pixel data having color component values falling within an extended range outside of 0.0 to 1.0 corresponding to an extended range color space. In one embodiment, a gamma correction function is disclosed that can be applied to the pixel data, where the gamma correction function is applicable to both negative and positive values. Various embodiments of formats for arranging pixel data are also disclosed.

Abstract translation: 公开了与加色系统有关的技术。 在一个实施例中，公开了一种装置，其包括被配置为对具有落在与扩展范围颜色空间相对应的0.0至1.0之外的扩展范围内的颜色分量值的像素数据进行操作的装置。 在一个实施例中，公开了可以应用于像素数据的伽马校正功能，其中伽马校正功能适用于负值和正值两者。 还公开了用于布置像素数据的格式的各种实施例。

公开(公告)号：WO2013126242A1

公开(公告)日：2013-08-29

申请号：PCT/US2013/025743

申请日：2013-02-12

Applicant: APPLE INC.

Inventor： OKRUHLICA, Craig M. ,  TRIPATHI, Brijesh ,  BHARGAVA, Nitin

IPC: G06T15/50 ,  G09G5/36 ,  G06T15/00 ,  G06F1/32

CPC classification number: G09G5/363 ,  G06F1/325 ,  G06T1/20 ,  G06T17/00 ,  G06T2210/32 ,  G09G2330/021 ,  G09G2340/10

Abstract: A graphics processing circuit and method for power savings in the same is disclosed. In one embodiment, a graphics processing circuit includes a number of channels. The number of channels includes a number of color component channels that are each configured to process color components of pixel values of an incoming frame of graphics information. The number of channels also includes an alpha scaling channel configured to process alpha values (indicative of a level of transparency) for the incoming and/or outgoing frames. The graphics processing circuit also includes a control circuit. The control circuit is configured to place the alpha scaling channel into a low-power state responsive to determining that at least one of the incoming or outgoing frames does not include alpha values.

Abstract translation: 公开了一种图形处理电路及其省电方法。 在一个实施例中，图形处理电路包括多个通道。 通道数量包括多个颜色分量通道，每个颜色分量通道被配置为处理进入的图形信息帧的像素值的颜色分量。 频道数量还包括被配置为处理传入和/或输出帧的alpha值（指示透明度水平）的α缩放通道。 图形处理电路还包括控制电路。 控制电路被配置为响应于确定进入或输出帧中的至少一个不包括阿尔法值将阿尔法缩放通道置于低功率状态。

公开(公告)号：EP2795583A1

公开(公告)日：2014-10-29

申请号：EP13706371.5

申请日：2013-02-12

Applicant: Apple Inc.

Inventor： OKRUHLICA, Craig M. ,  TRIPATHI, Brijesh ,  BHARGAVA, Nitin

IPC: G06T15/50 ,  G09G5/36 ,  G06T15/00 ,  G06F1/32

CPC classification number: G09G5/363 ,  G06F1/325 ,  G06T1/20 ,  G06T17/00 ,  G06T2210/32 ,  G09G2330/021 ,  G09G2340/10

Abstract: A graphics processing circuit and method for power savings in the same is disclosed. In one embodiment, a graphics processing circuit includes a number of channels. The number of channels includes a number of color component channels that are each configured to process color components of pixel values of an incoming frame of graphics information. The number of channels also includes an alpha scaling channel configured to process alpha values (indicative of a level of transparency) for the incoming and/or outgoing frames. The graphics processing circuit also includes a control circuit. The control circuit is configured to place the alpha scaling channel into a low-power state responsive to determining that at least one of the incoming or outgoing frames does not include alpha values.

Abstract translation: 公开了一种用于省电的图形处理电路和方法。 在一个实施例中，图形处理电路包括多个通道。 通道数量包括多个颜色分量通道，每个颜色分量通道被配置为处理进入的图形信息帧的像素值的颜色分量。 频道数量还包括被配置为处理传入和/或输出帧的alpha值（指示透明度水平）的α缩放通道。 图形处理电路还包括控制电路。 控制电路被配置为响应于确定进入或输出帧中的至少一个不包括阿尔法值，将阿尔法缩放通道置于低功率状态。