Source/ThirdParty/ANGLE/src/libANGLE/es3_copy_conversion_formats.json

{
    "From ES 3.0.1 spec, table 3.15":
    [
        [ "GL_ALPHA", "GL_RGBA" ],
        [ "GL_LUMINANCE", "GL_RED" ],
        [ "GL_LUMINANCE", "GL_RG" ],
        [ "GL_LUMINANCE", "GL_RGB" ],
        [ "GL_LUMINANCE", "GL_RGBA" ],
        [ "GL_LUMINANCE_ALPHA", "GL_RGBA" ],
        [ "GL_RED", "GL_RED" ],
        [ "GL_RED", "GL_RG" ],
        [ "GL_RED", "GL_RGB" ],
        [ "GL_RED", "GL_RGBA" ],
        [ "GL_RG", "GL_RG" ],
        [ "GL_RG", "GL_RGB" ],
        [ "GL_RG", "GL_RGBA" ],
        [ "GL_RGB", "GL_RGB" ],
        [ "GL_RGB", "GL_RGBA" ],
        [ "GL_RGBA", "GL_RGBA" ]
    ],

    "Necessary for ANGLE back-buffers":
    [
        [ "GL_ALPHA", "GL_BGRA_EXT" ],
        [ "GL_LUMINANCE", "GL_BGRA_EXT" ],
        [ "GL_LUMINANCE_ALPHA", "GL_BGRA_EXT" ],
        [ "GL_RED", "GL_BGRA_EXT" ],
        [ "GL_RG", "GL_BGRA_EXT" ],
        [ "GL_RGB", "GL_BGRA_EXT" ],
        [ "GL_RGBA", "GL_BGRA_EXT" ],
        [ "GL_BGRA_EXT", "GL_BGRA_EXT" ],

        [ "GL_RED_INTEGER", "GL_RED_INTEGER" ],
        [ "GL_RED_INTEGER", "GL_RG_INTEGER" ],
        [ "GL_RED_INTEGER", "GL_RGB_INTEGER" ],
        [ "GL_RED_INTEGER", "GL_RGBA_INTEGER" ],
        [ "GL_RG_INTEGER", "GL_RG_INTEGER" ],
        [ "GL_RG_INTEGER", "GL_RGB_INTEGER" ],
        [ "GL_RG_INTEGER", "GL_RGBA_INTEGER" ],
        [ "GL_RGB_INTEGER", "GL_RGB_INTEGER" ],
        [ "GL_RGB_INTEGER", "GL_RGBA_INTEGER" ],
        [ "GL_RGBA_INTEGER", "GL_RGBA_INTEGER" ]
    ]
}