Mesa 4.1 release notes
- October, <day>, 2002
+ October 29, 2002
- PLEASE READ!!!!
+ PLEASE READ!!!!
Off-screen rendering support.
+GL_ATI_texture_mirror_once
+
+ Adds two new texture wrap modes: GL_MIRROR_CLAMP_ATI and
+ GL_MIRROR_CLAMP_TO_EDGE_ATI.
+
Device Driver Status
Here are the changes:
- - Rename ctx->Color.DrawDestMask to ctx->Color._DrawDestMask
- - Rename ctx->Color.DriverDrawBuffer to ctx->Color._DriverDrawBuffer
- - Rename ctx->Pixel.DriverReadBuffer to ctx->Pixel._DriverReadBuffer
+ - Renamed ctx->Color.DrawDestMask to ctx->Color._DrawDestMask
+ - Removed ctx->Color.DriverDrawBuffer
+ - Removed ctx->Pixel.DriverReadBuffer
- Removed ctx->Color.MultiDrawBuffer
- - Removed ctx->Driver.SetDrawBuffer
- - Added ctx->Driver.DrawBuffer and ctx->Driver.ReadBuffer. These functions
- exactly correspond to glDrawBuffer and glReadBuffer calls.
+ - Removed ctx->Driver.SetDrawBuffer()
+ - Removed swrast->Driver.SetReadBuffer().
+ - Added ctx->Color._DrawDestMask - a bitmask of FRONT/BACK_LEFT/RIGHT_BIT
+ values to indicate the current draw buffers.
+ - Added ctx->Pixel._ReadSrcMask to indicate the source for pixel reading.
+ The value is _one_ of the FRONT/BACK_LEFT/RIGHT_BIT values.
+ - Added ctx->Driver.DrawBuffer() and ctx->Driver.ReadBuffer().
+ These functions exactly correspond to glDrawBuffer and glReadBuffer calls.
Many drivers will set ctx->Driver.DrawBuffer = _swrast_DrawBuffer and
leave ctx->Draw.ReadBuffer NULL.
DRI drivers should implement their own function for ctx->Driver.DrawBuffer
and use it to set the current hardware drawing buffer. You'll probably
also want to check for GL_FRONT_AND_BACK mode and fall back to software.
Call _swrast_DrawBuffer() too, to update the swrast state.
- - Removed swrast->Driver.SetReadBuffer
- - Added swrast->Driver.SetBuffer. This function should be implemented by
- all device drivers that use swrast fallbacks (and the span functions).
- Mesa will call this function to specify the buffer to use for span
- reading AND writing and point/line/triangle rendering. There
- should be no confusion between current read or draw buffer anymore.
+ - Added swrast->Driver.SetBuffer().
+ This function should be implemented by all device drivers that use swrast.
+ Mesa will call it to specify the buffer to use for span reading AND
+ writing and point/line/triangle rendering.
+ There should be no confusion between current read or draw buffer anymore.
+ - Added swrast->CurrentBuffer to indicate which color buffer to read/draw.
+ Will be FRONT_LEFT_BIT, BACK_LEFT_BIT, FRONT_RIGHT_BIT or BACK_RIGHT_BIT.
+ This value is usually passed to swrast->Driver.SetBuffer().
4. _mesa_create_context() changes. This function now takes a pointer to
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-$Id: RELNOTES-4.1,v 1.19 2002/10/10 23:49:02 brianp Exp $