targets/vdpau-nouveau: convert to static/shared pipe-drivers

Create a single library (for the vdpau api) thus reducing
the overall size of mesa. Current commit converts
vdpau-nouveau, with upcomming commits handling the rest.

The library can be built with the relevant pipe-drivers
statically linked in, or loaded as shared modules.
Currently we default to static.

Add SPLIT_TARGETS to guard the other VL targets.

Note: symlink handling is rather ugly and will need an
update to work with BSD and other non-linux platforms.

v2: Split the conversion into per-target basis.

Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>

configure.ac

@@ -1417,6 +1417,7 @@ if test "x$enable_vdpau" = xyes; then
     PKG_CHECK_MODULES([VDPAU], [vdpau >= $VDPAU_REQUIRED x11-xcb xcb-dri2 >= $XCBDRI2_REQUIRED],
                       [VDPAU_LIBS="`$PKG_CONFIG --libs x11-xcb xcb-dri2`"])
     GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS vdpau"
+    enable_gallium_loader=yes
 fi
 AM_CONDITIONAL(HAVE_ST_VDPAU, test "x$enable_vdpau" = xyes)
 
@@ -1967,7 +1968,7 @@ if test -n "$with_gallium_drivers"; then
             PKG_CHECK_MODULES([NOUVEAU], [libdrm_nouveau >= $LIBDRM_NOUVEAU_REQUIRED])
             gallium_require_drm_loader
             GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS nouveau"
-            gallium_check_st "nouveau/drm" "dri-nouveau" "" "xvmc-nouveau" "vdpau-nouveau" "omx-nouveau"
+            gallium_check_st "nouveau/drm" "dri-nouveau" "" "xvmc-nouveau" "vdpau/nouveau" "omx-nouveau"
             DRICOMMON_NEED_LIBDRM=yes
             ;;
         xfreedreno)
@@ -2225,7 +2226,7 @@ AC_CONFIG_FILES([Makefile
 		src/gallium/targets/radeonsi/dri/Makefile
 		src/gallium/targets/radeonsi/omx/Makefile
 		src/gallium/targets/radeonsi/vdpau/Makefile
-		src/gallium/targets/vdpau-nouveau/Makefile
+		src/gallium/targets/vdpau/Makefile
 		src/gallium/targets/xa/Makefile
 		src/gallium/targets/xa/xatracker.pc
 		src/gallium/targets/xvmc-nouveau/Makefile

src/gallium/Automake.inc

@@ -41,6 +41,7 @@ GALLIUM_DRI_CFLAGS = \
 
 GALLIUM_VIDEO_CFLAGS = \
 	-I$(top_srcdir)/include \
+	-I$(top_srcdir)/src/loader \
 	-I$(top_srcdir)/src/gallium/include \
 	-I$(top_srcdir)/src/gallium/auxiliary \
 	-I$(top_srcdir)/src/gallium/drivers \
@@ -87,7 +88,7 @@ GALLIUM_DRI_LINKER_FLAGS += \
 	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/dri.sym
 
 GALLIUM_VDPAU_LINKER_FLAGS += \
-	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/vdpau.sym
+	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/vdpau/vdpau.sym
 
 GALLIUM_XVMC_LINKER_FLAGS += \
 	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/xvmc.sym

src/gallium/auxiliary/vl/vl_winsys.h

@@ -38,10 +38,12 @@
 
 struct pipe_screen;
 struct pipe_surface;
+struct pipe_loader_device;
 
 struct vl_screen
 {
    struct pipe_screen *pscreen;
+   struct pipe_loader_device *dev;
 };
 
 struct vl_screen*

src/gallium/auxiliary/vl/vl_winsys_dri.c

@@ -40,6 +40,7 @@
 #include "pipe/p_screen.h"
 #include "pipe/p_context.h"
 #include "pipe/p_state.h"
+#include "pipe-loader/pipe_loader.h"
 #include "state_tracker/drm_driver.h"
 
 #include "util/u_memory.h"
@@ -375,10 +376,19 @@ vl_screen_create(Display *display, int screen)
    if (authenticate == NULL || !authenticate->authenticated)
       goto free_authenticate;
 
+#if SPLIT_TARGETS
    scrn->base.pscreen = driver_descriptor.create_screen(fd);
+#else
+#if GALLIUM_STATIC_TARGETS
+   scrn->base.pscreen = dd_create_screen(fd);
+#else
+   if (pipe_loader_drm_probe_fd(&scrn->base.dev, fd, true))
+      scrn->base.pscreen = pipe_loader_create_screen(scrn->base.dev, PIPE_SEARCH_DIR);
+#endif // GALLIUM_STATIC_TARGETS
+#endif // SPLIT_TARGETS
 
    if (!scrn->base.pscreen)
-      goto free_authenticate;
+      goto release_pipe;
 
    scrn->base.pscreen->flush_frontbuffer = vl_dri2_flush_frontbuffer;
    vl_compositor_reset_dirty_area(&scrn->dirty_areas[0]);
@@ -391,6 +401,13 @@ vl_screen_create(Display *display, int screen)
 
    return &scrn->base;
 
+release_pipe:
+#if !SPLIT_TARGETS
+#if !GALLIUM_STATIC_TARGETS
+   if (scrn->base.dev)
+      pipe_loader_release(&scrn->base.dev, 1);
+#endif // !GALLIUM_STATIC_TARGETS
+#endif // !SPLIT_TARGETS
 free_authenticate:
    free(authenticate);
 free_connect:
@@ -418,5 +435,10 @@ void vl_screen_destroy(struct vl_screen *vscreen)
 
    vl_dri2_destroy_drawable(scrn);
    scrn->base.pscreen->destroy(scrn->base.pscreen);
+#if !SPLIT_TARGETS
+#if !GALLIUM_STATIC_TARGETS
+   pipe_loader_release(&scrn->base.dev, 1);
+#endif // !GALLIUM_STATIC_TARGETS
+#endif // !SPLIT_TARGETS
    FREE(scrn);
 }

src/gallium/targets/Makefile.am

@@ -34,6 +34,10 @@ if HAVE_GALLIUM_GBM
 SUBDIRS += gbm
 endif
 
+if HAVE_ST_VDPAU
+SUBDIRS += vdpau
+endif
+
 if HAVE_ST_XA
 SUBDIRS += xa
 endif
@@ -113,10 +117,6 @@ if HAVE_ST_XVMC
 SUBDIRS += xvmc-nouveau
 endif
 
-if HAVE_ST_VDPAU
-SUBDIRS += vdpau-nouveau
-endif
-
 if HAVE_ST_OMX
 SUBDIRS += omx-nouveau
 endif

src/gallium/targets/dri-vdpau.dyn

@@ -0,0 +1,4 @@
+{
+	nouveau_drm_screen_create;
+	radeon_drm_winsys_create;
+};

src/gallium/targets/omx-nouveau/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/r600/omx/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/r600/vdpau/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/r600/xvmc/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/radeonsi/omx/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/radeonsi/vdpau/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)
 

src/gallium/targets/vdpau-nouveau/Makefile.am

@@ -1,46 +0,0 @@
-# Copyright © 2012 Intel Corporation
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# the rights to use, copy, modify, merge, publish, distribute, sublicense,
-# and/or sell copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice (including the next
-# paragraph) shall be included in all copies or substantial portions of the
-# Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-# DEALINGS IN THE SOFTWARE.
-
-include $(top_srcdir)/src/gallium/Automake.inc
-
-AM_CFLAGS = \
-	$(GALLIUM_VIDEO_CFLAGS)
-
-vdpaudir = $(VDPAU_LIB_INSTALL_DIR)
-vdpau_LTLIBRARIES = libvdpau_nouveau.la
-
-nodist_EXTRA_libvdpau_nouveau_la_SOURCES = dummy.cpp
-libvdpau_nouveau_la_SOURCES = \
-	target.c \
-	$(top_srcdir)/src/gallium/auxiliary/vl/vl_winsys_dri.c
-
-libvdpau_nouveau_la_LDFLAGS = \
-	$(GALLIUM_VDPAU_LINKER_FLAGS) \
-	-Wl,--dynamic-list=$(srcdir)/../dri-nouveau/nouveau_dri.dyn
-
-libvdpau_nouveau_la_LIBADD = \
-	$(top_builddir)/src/gallium/winsys/nouveau/drm/libnouveaudrm.la \
-	$(top_builddir)/src/gallium/drivers/nouveau/libnouveau.la \
-	$(GALLIUM_VDPAU_LIB_DEPS) \
-	$(NOUVEAU_LIBS)
-
-include $(top_srcdir)/install-gallium-links.mk

src/gallium/targets/vdpau-nouveau/target.c

@@ -1,18 +0,0 @@
-#include "state_tracker/drm_driver.h"
-#include "target-helpers/inline_debug_helper.h"
-#include "nouveau/drm/nouveau_drm_public.h"
-
-static struct pipe_screen *create_screen(int fd)
-{
-   struct pipe_screen *screen;
-
-   screen = nouveau_drm_screen_create(fd);
-   if (!screen)
-      return NULL;
-
-   screen = debug_screen_wrap(screen);
-
-   return screen;
-}
-
-DRM_DRIVER_DESCRIPTOR("nouveau", "nouveau", create_screen, NULL)

src/gallium/targets/vdpau/Makefile.am

@@ -0,0 +1,111 @@
+include $(top_srcdir)/src/gallium/Automake.inc
+
+AM_CFLAGS = \
+	$(GALLIUM_VIDEO_CFLAGS)
+
+vdpaudir = $(VDPAU_LIB_INSTALL_DIR)
+vdpau_LTLIBRARIES = libvdpau_gallium.la
+
+nodist_EXTRA_libvdpau_gallium_la_SOURCES = dummy.cpp
+libvdpau_gallium_la_SOURCES = \
+	$(top_srcdir)/src/gallium/auxiliary/vl/vl_winsys_dri.c
+
+libvdpau_gallium_la_LDFLAGS = \
+	-shared \
+	-module \
+	-no-undefined \
+	-version-number $(VDPAU_MAJOR):$(VDPAU_MINOR) \
+	-Wl,--dynamic-list=$(top_srcdir)/src/gallium/targets/dri-vdpau.dyn \
+	$(GC_SECTIONS) \
+	$(LD_NO_UNDEFINED)
+
+if HAVE_LD_VERSION_SCRIPT
+libvdpau_gallium_la_LDFLAGS += \
+	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/vdpau/vdpau.sym
+endif # HAVE_LD_VERSION_SCRIPT
+
+libvdpau_gallium_la_LIBADD = \
+	$(top_builddir)/src/gallium/state_trackers/vdpau/libvdpautracker.la \
+	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
+	$(VDPAU_LIBS) \
+	$(LIBDRM_LIBS) \
+	$(GALLIUM_COMMON_LIB_DEPS)
+
+
+if HAVE_GALLIUM_STATIC_TARGETS
+
+MEGADRIVERS =
+STATIC_TARGET_CPPFLAGS = -DGALLIUM_STATIC_TARGETS=1
+STATIC_TARGET_LIB_DEPS = \
+	$(top_builddir)/src/loader/libloader.la
+
+if HAVE_GALLIUM_NOUVEAU
+MEGADRIVERS += nouveau
+STATIC_TARGET_CPPFLAGS += -DGALLIUM_NOUVEAU
+STATIC_TARGET_LIB_DEPS += \
+	$(top_builddir)/src/gallium/winsys/nouveau/drm/libnouveaudrm.la \
+	$(top_builddir)/src/gallium/drivers/nouveau/libnouveau.la \
+	$(NOUVEAU_LIBS)
+endif
+
+libvdpau_gallium_la_SOURCES += target.c
+libvdpau_gallium_la_CPPFLAGS = $(STATIC_TARGET_CPPFLAGS)
+libvdpau_gallium_la_LIBADD += $(STATIC_TARGET_LIB_DEPS)
+
+else # HAVE_GALLIUM_STATIC_TARGETS
+
+libvdpau_gallium_la_CPPFLAGS = \
+	$(GALLIUM_PIPE_LOADER_DEFINES) \
+	-DPIPE_SEARCH_DIR=\"$(libdir)/gallium-pipe\"
+
+# XXX: Use the pipe-loader-client over pipe-loader ?
+libvdpau_gallium_la_LIBADD += \
+	$(top_builddir)/src/gallium/auxiliary/pipe-loader/libpipe_loader.la \
+	$(GALLIUM_PIPE_LOADER_WINSYS_LIBS) \
+	$(GALLIUM_PIPE_LOADER_LIBS)
+
+endif # HAVE_GALLIUM_STATIC_TARGETS
+
+if HAVE_MESA_LLVM
+libvdpau_gallium_la_LIBADD += $(LLVM_LIBS)
+libvdpau_gallium_la_LDFLAGS += $(LLVM_LDFLAGS)
+endif
+
+if HAVE_COMPAT_SYMLINKS
+# Add a link to allow setting VDPAU_DRIVER_PATH to /lib/gallium of the build tree.
+all-local: $(vdpau_LTLIBRARIES)
+	$(AM_V_GEN)link_dir=$(top_builddir)/$(LIB_DIR)/gallium;		\
+	$(MKDIR_P) $${link_dir};					\
+	for i in $(MEGADRIVERS); do					\
+		j=libvdpau_gallium.$(LIB_EXT);				\
+		k=libvdpau_$${i}.$(LIB_EXT);				\
+		l=$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0;		\
+		ln -f .libs/$${j}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0	\
+		      $${link_dir}/$${l};				\
+		ln -sf $${l}						\
+		       $${link_dir}/$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR); \
+		ln -sf $${l}						\
+		       $${link_dir}/$${k}.$(VDPAU_MAJOR);		\
+		ln -sf $${l}						\
+		       $${link_dir}/$${k};				\
+	done
+endif
+
+# hardlink each megadriver instance, but don't actually have
+# libvdpau_gallium.so in the set of final installed files.
+install-data-hook:
+	$(AM_V_GEN)dest_dir=$(DESTDIR)/$(vdpaudir);			\
+	for i in $(MEGADRIVERS); do					\
+		j=libvdpau_gallium.$(LIB_EXT);				\
+		k=libvdpau_$${i}.$(LIB_EXT);				\
+		l=$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0;		\
+		ln -f $${dest_dir}/$${j}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0 \
+		      $${dest_dir}/$${l}				\
+		ln -sf $${l}						\
+		       $${link_dir}/$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR); \
+		ln -sf $${l}						\
+		       $${link_dir}/$${k}.$(VDPAU_MAJOR);		\
+		ln -sf $${l}						\
+		       $${link_dir}/$${k};				\
+	done;								\
+	$(RM) -f $$dest_dir/libvdpau_gallium.*

src/gallium/targets/vdpau/target.c

@@ -0,0 +1 @@
+#include "target-helpers/inline_drm_helper.h"

src/gallium/targets/xvmc-nouveau/Makefile.am

@@ -22,6 +22,8 @@
 
 include $(top_srcdir)/src/gallium/Automake.inc
 
+AM_CPPFLAGS = \
+	-DSPLIT_TARGETS=1
 AM_CFLAGS = \
 	$(GALLIUM_VIDEO_CFLAGS)