Currently there are still at least two functions bundled up inside the
winsys concept:
a) that of a backend resource manager, sometimes capable of performing
present() operations,
b) the initialization code/routine for the whole driver stack.
The inclusion of (b) makes it difficult to share implementations of
(a) between different drivers. For instance, a clean xlib winsys
could be of use for software-rasterized VG, GLES, EGL, etc, stacks.
But that is only true as long as there is no dependency from the
winsys to higher level code, as would be the case when we include (b)
in this component.
This change creates a new gallium/targets subtree, specifically for
implementing the glue needed to build individual driver stacks, and
moves that code out of a single example winsys, namely xlib.
Other drivers continue to build unchanged, but hopefully can migrate
to this structure over time.
In other words, don't build src/gallium source code from within src/mesa/Makefile.
Also, allow to customize which gallium auxiliary dirs, driver driver, winsys
dirs get built from the config/* files.
Update the Makefiles and includes for the new paths.
Note that there hasn't been no separation of the Makefiles yet, and make is
jumping all over the place. That will be taken care shortly. But for now, make
should work. It was tested with linux and linux-dri. Linux-cell and linux-llvm
might require some minor tweaks.
Removing the paths on certain commands (e.g., ppu32-gcc) and removing
-I/usr/include makes it possible to build for Cell on both PowerPC and
x86 hosts.
libspe is deprecated in Cell SDK 2.1, and it is removed in Cell SDK 3.0.
This patch ports the existing libspe-based code to libspe2. Some error
checking (eh-hem) would be nice.
Brian Paul
Keith Whitwell
Marc Dietrich
Jakob Bornecrantz
José Fonseca
Brian Paul
Ian Romanick
José Fonseca