= About =
-This directory contains a Gallium3D pipe driver which traces all incoming calls.
+This directory contains a Gallium3D trace debugger pipe driver.
+It can traces all incoming calls.
-= Build Instructions =
+= Usage =
-To build, invoke scons on the top dir as
-
- scons statetrackers=mesa drivers=softpipe,i965simple,trace winsys=xlib
+== Tracing ==
+For tracing then do
-= Usage =
+ GALLIUM_TRACE=tri.trace trivial/tri
-To use do
+which should create a tri.trace file, which is an XML file. You can view copying
+trace.xsl to the same directory, and opening with a XSLT capable browser such as
+Firefox or Internet Explorer.
- ln -s libGL.so build/linux-x86-debug/gallium/winsys/xlib/libGL.so.1
- export LD_LIBRARY_PATH=$PWD/build/linux-x86-debug/gallium/winsys/xlib
+For long traces you can use the
-ensure the right libGL.so is being picked by doing
+ src/gallium/tools/trace/dump.py tri.trace | less -R
- ldd progs/trivial/tri
-and then try running
+== Remote debugging ==
- GALLIUM_TRACE=tri.trace progs/trivial/tri
+For remote debugging see:
-which should create a tri.trace file, which is an XML file. You can view copying
-trace.xsl to the same directory, and opening with a XSLT capable browser such as
-Firefox or Internet Explorer.
+ src/gallium/drivers/rbug/README
= Integrating =
You can integrate the trace pipe driver either inside the state tracker or the
-winsys. The procedure on both cases is the same. Let's assume you have a
-pipe_screen and a pipe_context pair obtained by the usual means (variable and
-function names are just for illustration purposes):
+target. The procedure on both cases is the same. Let's assume you have a
+pipe_screen obtained by the usual means (variable and function names are just
+for illustration purposes):
real_screen = real_screen_create(...);
- real_context = real_context_create(...);
-
-The trace screen and pipe_context is then created by doing
+The trace screen is then created by doing
trace_screen = trace_screen_create(real_screen);
-
- trace_context = trace_context_create(trace_screen, real_context);
-
-You can then simply use trace_screen and trace_context instead of real_screen
-and real_context.
-Do not call trace_winsys_create. Simply pass trace_screen->winsys or
-trace_context->winsys in places you would pass winsys.
+You can then simply use trace_screen instead of real_screen.
-You can create as many contexts you wish. Just ensure that you don't mistake
-trace_screen with real_screen when creating them.
+You can create as many contexts you wish from trace_screen::context_create they
+are automatically wrapped by trace_screen.
--
-Jose Fonseca <jrfonseca@tungstengraphics.com>
+Jose Fonseca <jfonseca@vmware.com>
+Jakob Bornecrantz <jakob@vmware.com>