android_mt6572_jiabo/external/skia/site/user/special/windows_angle.md

Using ANGLE on Windows

Introduction

ANGLE converts OpenGL ES 2.0 calls to DirectX 9 calls. These instructions document how to use ANGLE instead of the native OpenGL backend on Windows.

Details

Angle is now downloaded as a part of Skia according to the DEPS file.

Add skia_angle=1 to your GYP_DEFINES environment variable.

Run:

python gyp_skia

Remember

In SampleApp you will need to use the 'D' key to get to the ANGLE backend unless you enable the DEFAULT_TO_ANGLE #define in SampleApp.cpp.

• Use “--angle” to enable ANGLE in gm.

• Use “--config ANGLE” to use ANGLE in bench.

• Use "--config angle" to use ANGLE in bench_pictures and render_pictures.

ANGLE will automatically be compiled into the GLInterfaceValidation test.