Optimized multi-pass rendering on tiled base architectures

Patent metadata

Field	Value
Publication number	US-2016148338-A1
Application number	US-201615012467-A
Country	US
Kind code	A1
Filing date	Feb 1, 2016
Priority date	Dec 27, 2013
Publication date	May 26, 2016
Grant date	—

Abstract

The present disclosure provides systems and methods for multi-path rendering on tile based architectures including executing, with a graphics processing unit (GPU), a query pass, executing, with the GPU, a condition true pass based on the query pass without executing a flush operation, executing, with the GPU, a condition false pass based on the query pass without executing a flush operation, and responsive to executing the condition true pass and the condition false pass, executing, with the GPU, a flush operation.

First claim

1 . A method for multi-path graphics rendering on tile-based architectures, the method comprising:
receiving, with a graphics processing unit (GPU) from an application executing on a processor other than the GPU, a first set of commands for a condition true pass and a second set of commands for a condition false pass; executing, with the GPU, a query pass without executing a flush operation to flush results of the query pass to the processor; in response to the results of the query pass indicating a true condition, executing, with the GPU, the condition true pass, including executing the first set of commands, based on the query pass without executing the flush operation; in response to the results of the query pass indicating a false condition, executing, with the GPU, the condition false pass, including executing the second set of commands, based on the query pass without executing the flush operation; and responsive to executing the condition true pass and the condition false pass, executing, with the GPU, the flush operation.

2 . The method of claim 1 , wherein the query pass comprises a first query pass and executing the first query pass comprises executing a graphics rendering command that indicates a start of the first query pass.

3 . The method of claim 2 , wherein executing the first query pass further comprises executing a graphics rendering command that indicates an end of the first query pass.

4 . The method of claim 1 , wherein executing the condition false pass further comprises executing a graphics command that indicates an end of the condition false pass.

5 . The method of claim 1 , further comprising executing a direct render.

6 . The method of claim 5 , wherein executing the condition true pass further comprises executing a graphics rendering command that indicates an end of a first query pass.

7 . The method of claim 1 , wherein executing the condition false pass further comprises executing a graphics command that indicates a start of the condition false pass.

8 . A device for multi-path graphics rendering on tile-based architectures comprising:
a memory; a graphics processing unit (GPU) communicatively coupled to the memory and configured to:
receive, from an application executing on a processor other than the GPU, a first set of commands for a condition true pass and a second set of commands for a condition false pass;
execute a query pass without executing a flush operation to flush results of the query pass to the processor;
in response to the results of the query pass indicating a true condition, execute the condition true pass, including executing the first set of commands, based on the query pass without executing the flush operation;
in response to the results of the query pass indicating a false condition, execute the condition false pass, including executing the second set of commands, based on the query pass without executing the flush operation; and
responsive to executing the condition true pass, and the condition false pass, executing the flush operation.

9 . The device of claim 8 , wherein the query pass comprises a first query pass and executing the first query pass comprises executing a graphics rendering command that indicates a start of the first query pass.

10 . The device of claim 9 , wherein executing the first query pass further comprises executing a graphics rendering command that indicates an end of the first query pass.

11 . The device of claim 8 , wherein executing the condition false pass further comprises executing a graphics command that indicates an end of the condition false pass.

12 . The device of claim 8 , further comprising executing a direct render.

13 . The device of claim 12 , wherein executing the condition true pass further comprises executing a graphics rendering command that indicates an end of a first query pass.

14 . The device of claim 8 , wherein executing the condition false pass further comprises executing a graphics command that indicates a start of the condition false pass.

15 . A device for multi-path graphics rendering on tile based architectures comprising:
means for receiving, with a graphics processing unit (GPU) from an application executing on a processor other than the GPU, a first set of commands for a condition true pass and a second set of commands for a condition false pass means for executing a query pass with the GPU without executing a flush operation to flush results of the query pass to the processor; means for executing the condition true pass in response to the results of the query pass indicating a true condition, including means for executing the first set of commands, based on the query pass without executing the flush operation with the GPU; means for executing the condition false pass in response to the results of the query pass indicating a false condition, including means for executing the second set of commands, based on the query pass without executing the flush operation with the GPU; and responsive to executing the condition true pass and the condition false pass, means for performing the flush operation with the GPU.

16 . The device of claim 15 , wherein the query pass comprises a first query pass and executing the first query pass comprises executing a graphics rendering command that indicates a start of the first query pass.

17 . The device of claim 16 , wherein executing the first query pass further comprises means for executing a graphics rendering command that indicates an end of the first query pass.

18 . The device of claim 15 , wherein executing the condition false pass further comprises executing a graphics command that indicates an end of the condition false pass.

19 . The device of claim 15 , further comprising executing a direct render.

20 . The device of claim 19 , wherein executing the condition true pass further comprises executing a graphics rendering command that indicates an end of a first query pass.

21 . The device of claim 15 , wherein executing the condition false pass further comprises executing a graphics command that indicates a start of the condition false pass.

22 . A computer-readable storage medium, the computer-readable storage medium having stored thereon instructions for multi-path graphics rendering on tile based architectures that upon execution cause one or more graphics processing units (GPUs), to
receive, from an application executing on a processor other than the GPU, a first set of commands for a condition true pass and a second set of commands for a condition false pass; execute a query pass without executing a flush operation to flush results of the query pass to the processor; in response to the results of the query pass indicating a true condition, execute the condition true pass, including executing the first set of commands, based on the query pass without executing the flush operation; in response to the results of the query pass indicating a false condition, execute the condition false pass, including executing the second set of commands, based on the query pass without executing the flush operation; and responsive to executing the condition true pass, and the condition false pass, execute the flush operation.

Assignees

• Qualcomm Inc

Inventors

• Balci Murat
• Frascati Christopher Paul
• Seetharamaiah Avinash

Classifications

• G06T15/005 Primary

  General purpose rendering architectures · CPC title

• G06T1/20 Primary

  Processor architectures; Processor configuration, e.g. pipelining · CPC title

• G06F16/7335

  Graphical querying, e.g. query-by-region, query-by-sketch, query-by-trajectory, GUIs for designating a person/face/object as a query predicate (end-user interface involving hot spots associated with the video H04N21/4725; end-user interface for selecting a Region of Interest H04N21/4728) · CPC title