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Since GL_READ_BUFFER is historically part of the gl_pixel_attrib group
it made sense to signal changes with _NEW_PIXEL. But now with FBOs it's
also part of the framebuffer state.
Now _NEW_PIXEL strictly indicates pixels transfer state changes.
This change avoids framebuffer state validation when any random bit of
pixel-transfer state is set.
DRI drivers updated too: don't check _NEW_COLOR when updating framebuffer
state. I think that was just copied from the Xlib driver because we care
about dither enable/disable state there.
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Brought over from gallium-0.2 branch.
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Also, general clean-up of the Xlib-optimized glDraw/CopyPixels code.
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Set _ColorDrawBuffers[0] = NULL if no renderbuffers enabled.
Check that _ColorDrawBuffers[0] is non-null before dereferencing in a few places.
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These fields are no longer indexed by shader output. Now, we just have
a simple array of renderbuffer pointers.
If the shader writes to gl_FragData[i], send those colors to the N
_ColorDrawBuffers. Otherwise, replicate the single gl_FragColor (or
the fixed-function color) to the N _ColorDrawBuffers.
A few more changes and simplifications can follow from this...
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Drop XMesaSetVisualDisplay(), XMesaReset(), no longer used.
Add XMesaCopyContext() and move the GlxSetRenderTables() call for XGL within
XMesaForceCurrent(). This is to make xserver/GL/mesa/X/xf86glx.c unaware of
Mesa internals.
Also, clean some ifdef's to make it clear that USE_XSHM and XFree86Server are
mutually exclusive.
Lastly,
- move gcstruct.h from glxheader.h up to xmesa_xf86.h since it calls *gc->ops
- drop GL/glxtokens.h from xm_api|dd.c, GLX tokens come from glcore.h and are
used irrelevant of XFree86.
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Always check window size in XMesaMakeCurrent() in case glViewport is not
called.
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All buffer resizes now handled by xmesa_check_and_update_buffer_size() which
uses the _mesa_resize_framebuffer() function.
Moved all low-level XImage/Pixmap resizing into xm_buffers.c file.
Also, update lots of comments for Doxygen.
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not a user-created FBO.
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to xmesa_renderbuffers
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New GLint64EXT and GLuint64EXT types (use C99's long long types).
New glGetQueryObject[u]i64vEXT() functions.
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glReadPixels done, glDrawPixels mostly done.
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of the XMesaPixmap field to avoid some X server-side issues with casting.
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Define suseconds_t for OpenVMS
Modified Files:
Mesa/src/mesa/drivers/x11/xm_dd.c
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yet).
Extends the query mechanism to query elapsed time while rendering.
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Now, OLD_RENDERBUFFER marks code that needs to eventually be removed when
all the drivers are updated to no longer need the SetBuffer() function.
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span functions pass in a gl_renderbuffer to indicate which color
buffer should be drawn into. Optimized line/triangle routines are
smart enough to know which buffer to draw into as well.
The swrast->SetBuffer() routine should eventually be removed from
all drivers.
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Main driver impacts:
- new code for creating the Mesa GLframebuffer
- new span/pixel read/write code
Some drivers not yet updated/tested.
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Now, the driver's Viewport routine should call _mesa_ResizeBuffersMESA()
if necessary.
Cleaned up code related to GLframebuffer width/height initialization.
Set initial viewport/scissor params in _mesa_make_current2(), instead of
in the drivers' MakeCurrent functions.
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the values in the contained GLframebuffer.
Removed some other unneeded code.
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avoid gcc 3.4 compiler warnings.
Remove the unused/obsolete GLX_render_texture stuff.
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and ignored for 1D and 2D images.
Need to pass in image dimensions (1,2,3) to the _mesa_image_address() function.
This change gets propogated to some other routines.
Also added new _mesa_image_address[123]d() convenience functions.
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In x11 driver, map/unmap PBO as needed in DrawPixels functions.
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Only available with Xlib driver for now.
Assorted clean-ups related to Draw/ReadBuffer().
Renamed FRONT_LEFT_BIT -> DD_FRONT_LEFT_BIT, etc.
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Note: extension may not be finalized yet - subject to change!
Note: implementation not fully suitable for h/w implementation yet.
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fields in __GLcontextModes (the base type). Removed the need to keep
the XMesaVisualInfo pointer when building inside the X-server.
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