Fix DRI2 accelerated EXT_texture_from_pixmap with GL_RGB format.
This requires upgrading the interface so that the argument to
glXBindTexImageEXT isn't just dropped on the floor. Note that this only
fixes the accelerated path on Intel, as Mesa's texture format support is
missing x8r8g8b8 support (right now, GL_RGB textures get uploaded as a8r8gb8,
but in this case we're not doing the upload so we can't really work around it
that way).
Fixes bugs with compositors trying to use shaders that use alpha channels, on
windows without a valid alpha channel. Bug #19910 and likely others as well.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
glut: Use a new define GLUT_STATIC to distinguish static builds.
_DLL is defined by MSVC when building against a DLL version of the CRT
library. It bears no relation to whether we are building a DLL or not. That
is, we can build a DLL against a static CRT, or a static lib against a
dynamicaly linked CRT. See more detail at
http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
This gets DLL version of glut linking correctly both with MinGW and MSVC.
PS: GL/gl.h (and others) must be fixed too.
Trying to override windows headers is a recipe for disaster. Especially
when using with glew. Also the windows headers in recent MinGW are complete
enough that they don't need patching up.
GLEW does some defining/undefining of GLAPIENTRY making it unreliable. GLEW
should also be fixed, but removing the dependency on this symbol.
This also restores the ability for GLUT to be used with -fvisibility=hidden.
The downside of this is that ld warns of:
Warning: size of symbol `glutBitmapXXXXX' changed from 4 in glut_xxx.o to 16 in glut_xxxx.o
Due to the fonts being declared void * (*4 bytes), but defined as 16byte static
structure. I'll fix that in a later commit.
See also commits:
- f321f16e83
- d084982240
Under the terms of version 1.1, "once Covered Code has been published
under a particular version of the License, Recipient may, for the
duration of the License, continue to use it under the terms of that
version, or choose to use such Covered Code under the terms of any
subsequent version published by SGI."
FreeB 2.0 license refers to "dates of first publication". They are here
taken to be 1991-2000, as noted in the original license text:
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
Official FreeB 2.0 text:
http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf
As always, this code has not been tested for conformance with the OpenGL
specification. OpenGL conformance testing is available from
http://khronos.org/ and is required for use of the OpenGL logo in
product advertising and promotion.
Although it would be interesting having the GDI winsys running on WinCE
several Windows GDI API functions and data structures are missing from
WinCE headers, making this far from a trivial endeavor.
Roland Scheidegger