Apple Inc.

Domenico Troiano

Michael Imbrogno

Andrew M Sowerby

Eric O Sunalp

Sebastian Schaefer

Dustin J Greene

Ohad Frenkel

Alp Yucebilgin

Maximilian Christ

Lionel Lemarie

A Resource Dependency Viewer for graphics processing unit (GPU) execution information is disclosed. The Resource Dependency Viewer provides profiling/debugging information concurrently with information about execution flow, resource utilization, execution statistics, and orphaned resources, among other things. A user-interactive graph ('dependency graph') may be provided via a graphical user interface to allow interactive analysis of code executed on a GPU (e.g., graphics or compute code). Resource utilization and execution flow of encoders may be identified by analyzing contents of a GPU workload representative of a GPU execution trace to generate the dependency graph. Information about dependencies and execution statistics may be further analyzed using heuristics to identify potential problem areas. The dependency graph may include visual indicators of these problem areas. Results oriented navigation from the dependency graph and other visual panes provide debugging navigation techniques different than a debugging interface configured to 'step' through code or provide static analysis.

Graphics processing unit resource dependency viewer

Systems, computer readable media, and methods for hardware accelerated blits of multisampled textures on graphics processing units (GPUs) are disclosed. For multisampled surfaces, texture-to-buffer blits cannot be trivially implemented because most GPUs do not support writing multisampled surfaces with a linear memory layout. Moreover, GPUs often have a maximum limit for row stride (i.e., the number of bytes from one row of pixels in memory to the next) and/or texture size. When the destination buffer for the blit of a multisampled texture is too large to be aliased by an equivalent non-multisampled texture view, the stride of the view has no spatial relationship with the destination buffer. Thus, to access the source texture correctly, a 'remapping' may be performed to determine the linear sample index of a fragment within the view, and the destination buffer stride may be used to compute the texture coordinates used to sample the source texture.

Accelerated blits of multisampled textures on GPUs

Growing community of inventors

Santa Clara, CA, United States of America

Domenico Troiano