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added device driver changes

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This commit is contained in:
Brian Paul 2000-09-07 15:46:05 +00:00
parent c4c639c9a4
commit 8ad306baf6
1 changed files with 22 additions and 1 deletions
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docs/RELNOTES-3.5
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@ -47,5 +47,26 @@ GL_NV_blend_square
Device Driver Changes
---------------------
The ctx->Driver.LogicOp() function has been removed. It used to
be called during state update in order to determine if the driver
could do glLogicOp() operations, and if not, set the SWLogicOpEnabled
flag. Drivers should instead examine the LogicOp state themselves
and choose specialized point, line, and triangle functions appropriately,
or fall back to software rendering. The Xlib driver was the only driver
to use this function. And since the Xlib driver no longer draws
points, lines or triangles using Xlib, the LogicOp function isn't needed.
The ctx->Driver.IndexMask() and ctx->Driver.ColorMask() functions
are now just called from glIndexMask and glColorMask like the other
GL state-changing functions. They are no longer called from inside
gl_update_state(). Also, they now return void. The change was made
mostly for sake of uniformity.
----------------------------------------------------------------------
$Id: RELNOTES-3.5,v 1.2 2000/08/31 23:04:17 brianp Exp $
$Id: RELNOTES-3.5,v 1.3 2000/09/07 15:46:05 brianp Exp $