Commit a894cb948d5b09111ec4b0cb218154785d0d17a5

Chris Dalton 2022-05-10T21:15:59

Bootstrap pixel local storage This CL creates a very simple prototype that implements pixel local storage in a thin layer on top of ES 3.1 shader images, and adds a single test. Assuming all goes well on the various devices and backends, the next steps will be: * Write many more tests. * Compiler support, switch to API-specific shader images. * Move the thin layer into ANGLE. * Thorough validation and error handling. * Add an implementation that uses render target attachments (e.g., EXT_shader_framebuffer_fetch). * Incremental, backend-specific optimizations as needed. Bug: angleproject:7279 Change-Id: I7f9f0a1fe2d61f570b4105a7380687038ae45f5d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3645786 Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Kenneth Russell <kbr@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>