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905961452a
When the attachment type is NONE (att->Type),
FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE should be NONE always.
Note that technically, the current behaviour follows the spec. From
OpenGL 4.5 spec, Section 9.2.3 "Framebuffer Object Queries":
"If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
either no framebuffer is bound to target; or the default
framebuffer is bound, attachment is DEPTH or STENCIL, and the
number of depth or stencil bits, respectively, is zero."
Reading literally this paragraph, for the default framebuffer, NONE
should be only returned if attachment is DEPTH and STENCIL without
being allocated.
But it doesn't makes too much sense to return DEFAULT_FRAMEBUFFER if
the attachment type is NONE. For example, this can happens if the
attachment is FRONT_RIGHT run on monoscopic mode, as that attachment
is only available on stereo mode.
With the current behaviour, defensive querying of the object type
would not work properly. So you could query the object type checking
for NONE, get DEFAULT_FRAMEBUFFER, and then get and INVALID_OPERATION
when requesting other pnames (like RED_SIZE), as the real attachment
type is NONE.
This fixes:
GL45-CTS.direct_state_access.framebuffers_get_attachment_parameters
v2: don't change the behaviour for att->Type != GL_NONE, as caused
some ES CTS regressions
v3: simplify condition (Iago)
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
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File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see http://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.