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公开(公告)号：US20220012933A1
公开(公告)日：2022-01-13
申请号：US17483678
申请日：2021-09-23
发明人： Skyler Jonathon Saleh , Vineet Goel , Pazhani Pillai , Ruijin Wu , Christopher J. Brennan , Andrew S. Pomianowski
摘要： Techniques for performing shader operations are provided. The techniques include, performing pixel shading at a shading rate defined by pixel shader variable rate shading (“VRS”) data, and updating the pixel VRS data that indicates one or more shading rates for one or more tiles based on whether the tiles of the one or more tiles include triangle edges or do not include triangle edges, to generate updated VRS data.
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公开(公告)号：US20210407182A1
公开(公告)日：2021-12-30
申请号：US17028811
申请日：2020-09-22
摘要： Techniques for performing multi-sample anti-aliasing operations are provided. The techniques include detecting an instruction for a multi-sample anti-aliasing load operation; determining a sampling rate of source data for the load operation, data storage format of the source data, and loading mode indicating whether the load operation requests same or different color components, or depth data; and based on the determined sampling rate, data storage format, and loading mode, load data from a multi-sample source into a register.
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公开(公告)号：US11004251B2
公开(公告)日：2021-05-11
申请号：US16201879
申请日：2018-11-27
摘要： A knob has a plurality of settings that configure a graphics pipeline. A first setting is associated with a first state of the graphics pipeline. The first setting is associated with the first state based on a measure of performance of the graphics pipeline while configured according to the first setting. The graphics pipeline is configured according to the first setting in response to the first state of the graphics pipeline matching a current state of the graphics pipeline. The graphics pipeline processes graphics according to the first setting. In some cases, the first setting is associated with the first state of the graphics pipeline by dithering or toggling the knob between the settings once per frame for a predetermined number of frames. The first setting achieves better performance than other ones of the plurality of settings during the predetermined number of frames.
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4.发明申请公开(公告)号：US20200098169A1
公开(公告)日：2020-03-26
申请号：US16137830
申请日：2018-09-21
发明人： Ruijin Wu , Young In Yeo , Sagar S. Bhandare , Vineet Goel , Martin G. Sarov , Christopher J. Brennan
摘要： Described herein are techniques for improving the effectiveness of depth culling. In a first technique, a binner is used to sort primitives into depth bins. Each depth bin covers a range of depths. The binner transmits the depth bins to the screen space pipeline for processing in near-to-far order. Processing the near bins first results in the depth buffer being updated, allowing fragments for the primitives in the farther bins to be culled more aggressively than if the depth binning did not occur. In a second technique, a buffer is used to initiate two-pass processing through the screen space pipeline. In the first pass, primitives are sent down to update the depth block and are then culled. The fragments are processed normally in the second pass, with the benefit of the updated depth values.
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公开(公告)号：US12067749B2
公开(公告)日：2024-08-20
申请号：US17562777
申请日：2021-12-27
CPC分类号： G06T7/90 , G01J3/463 , G06T9/00 , G01J2003/467 , G06T2207/10024
摘要： Systems, apparatuses, and methods for performing color channel correlation detection are disclosed. A compression engine performs a color channel transform on an original set of pixel data to generate a channel transformed set of pixel data. An analysis unit determines whether to compress the channel transformed set of pixel data or the original set of pixel data based on performing a comparison of the two sets of pixel data. In one scenario, the channel transformed set of pixel data is generated by calculating the difference between a first pixel component and a second pixel component for each pixel of the set of pixel data. The difference is then compared to the original first pixel component for each pixel. If the difference is less than or equal to the original for a threshold number of pixels, then the analysis unit decides to apply the color channel transform prior to compression.
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公开(公告)号：US12067649B2
公开(公告)日：2024-08-20
申请号：US17362908
申请日：2021-06-29
CPC分类号： G06T11/001 , G06T1/20
摘要： A disclosed technique includes determining a plurality of per-pixel variable rate shading rates for a plurality of fragments; determining a coarse variable shading rate for a coarse variable rate shading area based on the plurality of per-pixel variable rate shading rates; and shading one or more fragments based on the plurality of fragments and based on the coarse variable shading rate.
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公开(公告)号：US12032967B2
公开(公告)日：2024-07-09
申请号：US17845938
申请日：2022-06-21
CPC分类号： G06F9/3887 , G06F9/3012 , G06F9/4881 , G06F9/5016
摘要： Devices and methods for partial sorting for coherence recovery are provided. The partial sorting is efficiently executed by utilizing existing hardware along the memory path (e.g., memory local to the compute unit). The devices include an accelerated processing device which comprises memory and a processor. The processor is, for example, a compute unit of a GPU which comprises a plurality of SIMD units and is configured to determine, for data entries each comprising a plurality of bits, a number of occurrences of different types of the data entries by storing the number of occurrences in one or more portions of the memory local to the processor, sort the data entries based on the determined number of occurrences stored in the one or more portions of the memory local to the processor and execute the sorted data entries.
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公开(公告)号：US11614889B2
公开(公告)日：2023-03-28
申请号：US16205094
申请日：2018-11-29
IPC分类号： G06F3/06 , G06F12/0804
摘要： An operation combiner receives a series of commands with read addresses, a modification operation, and write addresses. In some cases, the commands have serial dependencies that limit the rate at which they can be processed. The operation combiner compares the addresses for compatibility, transforms the operations to break serial dependencies, and combines multiple source commands into a smaller number of aggregate commands that can be executed much faster than the source commands. Some embodiments of the operation combiner receive a first command including one or more first read addresses and a first write address. The operation combiner compares the first read addresses and the first write address to one or more second read addresses and a second write address of a second command stored in a buffer. The operation combiner selectively combines the first and second commands to form an aggregate command based on the comparison.
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公开(公告)号：US11488328B2
公开(公告)日：2022-11-01
申请号：US17085851
申请日：2020-10-30
摘要： Systems, apparatuses, and methods for implementing automatic data format detection techniques are disclosed. A graphics engine receives data of indeterminate format and the graphics engine predicts an organization of the data. As part of the prediction, the graphics engine predicts the pixel depth (i.e., bytes per pixel (BPP)) and format separately. The graphics engine folds the data along pixel and channel boundaries to help in determining the pixel depth and format. The graphics engine scores modes against each other to generate different predictions for different formats. Then, the graphics engine generates scores for the predictions to determine which mode has a highest correlation with the input data. Next, the graphics engine chooses the format which attains the best score among the scores that were generated for the different modes. Then, the graphics engine compresses the unknown data using the chosen format with the best score.
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公开(公告)号：US10943389B2
公开(公告)日：2021-03-09
申请号：US15374752
申请日：2016-12-09
发明人： Laurent Lefebvre , Michael Mantor , Mark Fowler , Mikko Alho , Mika Tuomi , Kiia Kallio , Patrick Klas Rudolf Buss , Jari Antero Komppa , Kaj Tuomi , Christopher J. Brennan
摘要： Techniques for removing or identifying overlapping fragments in a fragment stream after z-culling are disclosed. The techniques include maintaining a first-in-first-out buffer that stores post-z-cull fragments. Each time a new fragment is received at the buffer, the screen position of the fragment is checked against all other fragments in the buffer. If the screen position of the fragment matches the screen position of a fragment in the buffer, then the fragment in the buffer is removed or marked as overlapping. If the screen position of the fragment does not match the screen position of any fragment in the buffer, then no modification is performed to fragments already in the buffer. In either case, he fragment is added to the buffer. The contents of the buffer are transmitted to the pixel shader for pixel shading at a later time.
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