1GL_APPLE_float_pixels
2http://www.opengl.org/registry/specs/APPLE/float_pixels.txt
3GL_APPLE_float_pixels
4
5	GL_HALF_APPLE 0x140B
6	GL_COLOR_FLOAT_APPLE 0x8A0F
7	GL_RGBA_FLOAT32_APPLE 0x8814
8	GL_RGB_FLOAT32_APPLE 0x8815
9	GL_ALPHA_FLOAT32_APPLE 0x8816
10	GL_INTENSITY_FLOAT32_APPLE 0x8817
11	GL_LUMINANCE_FLOAT32_APPLE 0x8818
12	GL_LUMINANCE_ALPHA_FLOAT32_APPLE 0x8819
13	GL_RGBA_FLOAT16_APPLE 0x881A
14	GL_RGB_FLOAT16_APPLE 0x881B
15	GL_ALPHA_FLOAT16_APPLE 0x881C
16	GL_INTENSITY_FLOAT16_APPLE 0x881D
17	GL_LUMINANCE_FLOAT16_APPLE 0x881E
18	GL_LUMINANCE_ALPHA_FLOAT16_APPLE 0x881F
19