| GL_EXT_framebuffer_blit | |
| http://oss.sgi.com/projects/ogl-sample/registry/EXT/framebuffer_blit.txt | |
| GL_DRAW_FRAMEBUFFER_BINDING_EXT 0x8CA6 | |
| GL_READ_FRAMEBUFFER_EXT 0x8CA8 | |
| GL_DRAW_FRAMEBUFFER_EXT 0x8CA9 | |
| GL_READ_FRAMEBUFFER_BINDING_EXT 0x8CAA | |
| void glBlitFramebufferEXT (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) |