GL_OES_compressed_paletted_texture
http://www.opengl.org/registry/specs/OES/OES_compressed_paletted_texture.txt
GL_OES_compressed_paletted_texture
	GL_PALETTE4_RGB8_OES 0x8B90
	GL_PALETTE4_RGBA8_OES 0x8B91
	GL_PALETTE4_R5_G6_B5_OES 0x8B92
	GL_PALETTE4_RGBA4_OES 0x8B93
	GL_PALETTE4_RGB5_A1_OES 0x8B94
	GL_PALETTE8_RGB8_OES 0x8B95
	GL_PALETTE8_RGBA8_OES 0x8B96
	GL_PALETTE8_R5_G6_B5_OES 0x8B97
	GL_PALETTE8_RGBA4_OES 0x8B98
	GL_PALETTE8_RGB5_A1_OES 0x8B99