Undefined symbols for glResolveMultisampleFramebufferAPPLE and _glRenderbufferStorageMultisampleAPPLE

kakashidinho / metalangle

MetalANGLE: OpenGL ES to Metal API translation layer

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Undefined symbols for glResolveMultisampleFramebufferAPPLE and _glRenderbufferStorageMultisampleAPPLE #77

Open myonlylonely opened 2 years ago

myonlylonely commented 2 years ago

XCode has these errors:

Undefined symbol: _glResolveMultisampleFramebufferAPPLE
Undefined symbol: _glRenderbufferStorageMultisampleAPPLE

I can see that in gl2ext.h, they are defined in GL_GLEXT_PROTOTYPES.

Does that mean that I need to build a version that has GL_GLEXT_PROTOTYPES enabled?

How to build that?

kakashidinho commented 2 years ago

Hi, glResolveMultisampleFramebufferAPPLE & glRenderbufferStorageMultisampleAPPLE are not implemented in MetalANGLE. If you want to use multisample framebuffer. Use:

glBlitFramebuffer & glRenderbufferStorageMultisample (standard OpenGL ES 3.0 functions).
glBlitFramebufferANGLE & glRenderbufferStorageMultisampleANGLE if you use OpenGL ES 2.0 context. They are almost equivalent to above functions except they are extensions for OpenGL ES 2.0.