skia2/tools/gpu/gl/interface
Michael Ludwig 7800453ed2 Revert "Use glDraw.*BaseInstance calls to avoid deferred buffer binding"
This reverts commit e8c963d474.

Reason for revert: assert failures: https://logs.chromium.org/logs/skia/4b4b7fcb2ff3fe11/+/steps/dm/0/stdout

Original change's description:
> Use glDraw.*BaseInstance calls to avoid deferred buffer binding
> 
> Change-Id: I968dab317673051acc65f87ea76a0d657d89b3d2
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/279538
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,csmartdalton@google.com,michaelludwig@google.com

Change-Id: Ic760a56ca9d112e924baf7e833adb09b371928b0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280817
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
2020-03-31 22:34:17 +00:00
..
gen_interface.go Reland "Get EGLimage functions out of GrGLInterface." 2019-05-15 19:58:45 +00:00
interface.json5 Revert "Use glDraw.*BaseInstance calls to avoid deferred buffer binding" 2020-03-31 22:34:17 +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 turn on -Wreturn-std-move-in-c++11 2020-02-18 23:55:35 +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.