skia2/tools/gpu/gl/interface
Chris Dalton 8854829351 Reland "Prefer the NV_framebuffer_blit extension over ANGLE"
This is a reland of 202ce887ec

Original change's description:
> Prefer the NV_framebuffer_blit extension over ANGLE
>
> The ANGLE/CHROMIUM glBlitFramebuffer requires full size blits, which
> is really bad for DMSAA. The NV extension does allow blits of
> sub-rectangles, so we prefer that one if it's available.
>
> Bug: skia:12176
> Bug: skia:12177
> Bug: skia:12234
> Bug: skia:12235
> Change-Id: I463ac631fff64ad564f294cf2f26be7410e8c356
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/430576
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>

Bug: skia:12176
Bug: skia:12177
Bug: skia:12234
Bug: skia:12235
Change-Id: I41d062f9894f5a81c78a37de27a288bc17812643
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/431817
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2021-07-23 16:20:36 +00:00
..
gen_interface.go Reland "Get EGLimage functions out of GrGLInterface." 2019-05-15 19:58:45 +00:00
interface.json5 Reland "Prefer the NV_framebuffer_blit extension over ANGLE" 2021-07-23 16:20:36 +00:00
Makefile Reland "Generate GrGLInterface and GrGlAssembleInterface* from table" 2019-03-26 10:55:00 +00:00
README.md Reland "Generate GrGLInterface and GrGlAssembleInterface* from table" 2019-03-26 10:55:00 +00:00
templates.go Don't cast emscripten pointers when assembling WebGL interface 2020-09-30 14:31:07 +00:00

GrGlInterface Autogeneration

Background

At a high level, the first three steps of making a GrGLInterface (a generic way to interact with a GL-like GPU) are:

  • Assemble: Copy a set of function pointers into the struct
  • Validate: Make sure the function pointers advertised actually exist.
  • Capabilities: Compute what fast/slow paths are enabled based on the functions in the struct (GrGLCaps, for short)

Autogeneration

The first two steps have been automated with a table-based generation script located in this folder. The table is in JSON5 format (like JSON, but with comments). O

Once edited, the Assemble/Validate code can be re-generated by running make generate in this folder.