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- RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk((((3333GGGG)))) RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk((((3333GGGG))))
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- NNNNAAAAMMMMEEEE
- RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk - grants write access to a subset of available bitplanes
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- CCCC SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
- vvvvooooiiiidddd RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk((((rrrreeeedddd,,,, ggggrrrreeeeeeeennnn,,,, bbbblllluuuueeee))))
- sssshhhhoooorrrrtttt rrrreeeedddd,,,, ggggrrrreeeeeeeennnn,,,, bbbblllluuuueeee;;;;
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- PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
- _r_e_d expects the mask for the corresponding red bitplanes.
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- _g_r_e_e_n expects the mask for the corresponding green bitplanes.
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- _b_l_u_e expects the mask for the corresponding blue bitplanes.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk sets the red, green, and blue write mask components of the
- currently active GL framebuffer, one of normal, popup, overlay, or
- underlay as specified by ddddrrrraaaawwwwmmmmooooddddeeee, to the specified values. The alpha
- mask component is set to enable writing to all alpha bitplanes. The
- current framebuffer must be in RGB mode for the RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk command to
- be applicable. All drawing into the color bitplanes of the current
- framebuffer is masked by the current write mask. Write mask components
- are retained in each draw mode, so when a draw mode is re-entered, the
- red, green, blue, and alpha masks are reset to the last values specified
- in that draw mode.
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- Each write mask component is an 8-bit mask, which allows changes only to
- bitplanes corresponding to ones in the mask. For example,
- RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk((((0000xxxxFFFF0000,,,,0000xxxx00000000,,,,0000xxxx00000000)))) allows changes only to the 4 most
- significant bits of red, and to all the bits of alpha. Bits 8 through 15
- of each component specification are ignored, only bits 0 through 7 are
- significant.
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- It is an error to call RRRRGGGGBBBBwwwwrrrriiiitttteeeemmmmaaaasssskkkk while the current framebuffer is in
- color map mode.
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- The write mask components of all framebuffers in RGB mode are set to 0xFF
- when ggggccccoooonnnnffffiiiigggg is called.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- drawmode, gRGBmask, RGBmode, wmpack
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- NNNNOOOOTTTTEEEE
- On Impact and Infinite Reality individual bits within a component cannot
- be masked.
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- PPPPaaaaggggeeee 1111
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