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Add gbm (generic/graphics buffer manager)

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This commit is contained in:
Benjamin Franzke 2011-05-26 15:09:39 +02:00
parent 15d7f1c1c7
commit eddcecbf74
18 changed files with 976 additions and 2 deletions
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11
Makefile
View File

@ -345,6 +345,16 @@ EGL_FILES = \
$(DIRECTORY)/src/egl/main/*.pc.in \
$(DIRECTORY)/src/egl/main/*.def
GBM_FILES = \
$(DIRECTORY)/src/gbm/Makefile \
$(DIRECTORY)/src/gbm/main/*.pc.in \
$(DIRECTORY)/src/gbm/main/*.[ch] \
$(DIRECTORY)/src/gbm/main/Makefile \
$(DIRECTORY)/src/gbm/backends/Makefile \
$(DIRECTORY)/src/gbm/backends/Makefile.template \
$(DIRECTORY)/src/gbm/backends/*/*.[ch] \
$(DIRECTORY)/src/gbm/backends/*/Makefile \
GALLIUM_FILES = \
$(DIRECTORY)/src/mesa/state_tracker/*[ch] \
$(DIRECTORY)/src/gallium/Makefile \
@ -442,6 +452,7 @@ LIB_FILES = \
$(MAPI_FILES) \
$(ES_FILES) \
$(EGL_FILES) \
$(GBM_FILES) \
$(GALLIUM_FILES) \
$(DRI_FILES) \
$(SGI_GLU_FILES) \

10
configs/autoconf.in
View File

@ -75,6 +75,7 @@ GLESv2_LIB = GLESv2
VG_LIB = OpenVG
GLAPI_LIB = glapi
WAYLAND_EGL_LIB = wayland-egl
GBM_LIB = gbm
# Library names (actual file names)
GL_LIB_NAME = @GL_LIB_NAME@
@ -88,6 +89,7 @@ GLESv2_LIB_NAME = @GLESv2_LIB_NAME@
VG_LIB_NAME = @VG_LIB_NAME@
GLAPI_LIB_NAME = @GLAPI_LIB_NAME@
WAYLAND_EGL_LIB_NAME = @WAYLAND_EGL_LIB_NAME@
GBM_LIB_NAME = @GBM_LIB_NAME@
# Globs used to install the lib and all symlinks
GL_LIB_GLOB = @GL_LIB_GLOB@
@ -101,6 +103,7 @@ GLESv2_LIB_GLOB = @GLESv2_LIB_GLOB@
VG_LIB_GLOB = @VG_LIB_GLOB@
GLAPI_LIB_GLOB = @GLAPI_LIB_GLOB@
WAYLAND_EGL_LIB_GLOB = @WAYLAND_EGL_LIB_GLOB@
GBM_LIB_GLOB = @GBM_LIB_GLOB@
# Directories to build
LIB_DIR = @LIB_DIR@
@ -108,6 +111,7 @@ SRC_DIRS = @SRC_DIRS@
GLU_DIRS = @GLU_DIRS@
DRIVER_DIRS = @DRIVER_DIRS@
EGL_DRIVERS_DIRS = @EGL_DRIVERS_DIRS@
GBM_BACKEND_DIRS = @GBM_BACKEND_DIRS@
GALLIUM_DIRS = @GALLIUM_DIRS@
GALLIUM_DRIVERS_DIRS = @GALLIUM_DRIVERS_DIRS@
GALLIUM_WINSYS_DIRS = @GALLIUM_WINSYS_DIRS@
@ -147,7 +151,8 @@ GLESv1_CM_LIB_DEPS = $(EXTRA_LIB_PATH) @GLESv1_CM_LIB_DEPS@
GLESv2_LIB_DEPS = $(EXTRA_LIB_PATH) @GLESv2_LIB_DEPS@
VG_LIB_DEPS = $(EXTRA_LIB_PATH) @VG_LIB_DEPS@
GLAPI_LIB_DEPS = $(EXTRA_LIB_PATH) @GLAPI_LIB_DEPS@
WAYLAND_EGL_LIB_DEPS = $(EXTRA_LIBPATH) @WAYLAND_EGL_LIB_DEPS@
WAYLAND_EGL_LIB_DEPS = $(EXTRA_LIB_PATH) @WAYLAND_EGL_LIB_DEPS@
GBM_LIB_DEPS = $(EXTRA_LIB_PATH) @GBM_LIB_DEPS@
# DRI dependencies
MESA_MODULES = @MESA_MODULES@
@ -206,6 +211,9 @@ EGL_PC_CFLAGS = @GL_PC_CFLAGS@
WAYLAND_EGL_PC_REQ_PRIV = @WAYLAND_EGL_PC_REQ_PRIV@
WAYLAND_EGL_PC_LIB_PRIV = @WAYLAND_EGL_PC_LIB_PRIV@
WAYLAND_EGL_PC_CFLAGS = @WAYLAND_EGL_PC_CFLAGS@
GBM_PC_REQ_PRIV = @GBM_PC_REQ_PRIV@
GBM_PC_LIB_PRIV = @GBM_PC_LIB_PRIV@
GBM_PC_CFLAGS = @GBM_PC_CFLAGS@
XCB_DRI2_CFLAGS = @XCB_DRI2_CFLAGS@
XCB_DRI2_LIBS = @XCB_DRI2_LIBS@

14
configs/default
View File

@ -63,7 +63,7 @@ GLESv2_LIB = GLESv2
VG_LIB = OpenVG
GLAPI_LIB = glapi
WAYLAND_EGL_LIB = wayland-egl
GBM_LIB = gbm
# Library names (actual file names)
GL_LIB_NAME = lib$(GL_LIB).so
@ -77,6 +77,7 @@ GLESv2_LIB_NAME = lib$(GLESv2_LIB).so
VG_LIB_NAME = lib$(VG_LIB).so
GLAPI_LIB_NAME = lib$(GLAPI_LIB).so
WAYLAND_EGL_LIB_NAME = lib$(WAYLAND_EGL_LIB).so
GBM_LIB_NAME = lib$(GBM_LIB).so
# globs used to install the lib and all symlinks
GL_LIB_GLOB = $(GL_LIB_NAME)*
@ -90,6 +91,7 @@ GLESv2_LIB_GLOB = $(GLESv2_LIB_NAME)*
VG_LIB_GLOB = $(VG_LIB_NAME)*
GLAPI_LIB_GLOB = $(GLAPI_LIB_NAME)*
WAYLAND_EGL_LIB_GLOB = $(WAYLAND_EGL_LIB_NAME)*
GBM_LIB_GLOB = $(GBM_LIB_NAME)*
DRI_CFLAGS = $(CFLAGS)
DRI_CXXFLAGS = $(CXXFLAGS)
@ -113,6 +115,9 @@ DRIVER_DIRS = x11 osmesa
# EGL drivers to build
EGL_DRIVERS_DIRS = glx
# gbm backends to build
GBM_BACKEND_DIRS = dri
# Gallium directories and
GALLIUM_DIRS = auxiliary drivers state_trackers
GALLIUM_AUXILIARIES = $(TOP)/src/gallium/auxiliary/libgallium.a
@ -140,6 +145,7 @@ GLESv2_LIB_DEPS = $(EXTRA_LIB_PATH) -lpthread
VG_LIB_DEPS = $(EXTRA_LIB_PATH) -lpthread
GLAPI_LIB_DEPS = $(EXTRA_LIB_PATH) -lpthread
WAYLAND_EGL_LIB_DEPS = $(EXTRA_LIB_PATH) -lwayland-client -ldrm
GBM_LIB_DEPS = $(EXTRA_LIB_PATH) -ludev -ldl
# Program dependencies - specific GL/glut libraries added in Makefiles
APP_LIB_DEPS = -lm
@ -159,6 +165,9 @@ DRI_DRIVER_SEARCH_DIR = $(DRI_DRIVER_INSTALL_DIR)
# EGL driver install directory
EGL_DRIVER_INSTALL_DIR = $(INSTALL_LIB_DIR)/egl
# gbm backend install directory
GBM_BACKEND_INSTALL_DIR = $(INSTALL_LIB_DIR)/gbm
# Xorg driver install directory (for xorg state-tracker)
XORG_DRIVER_INSTALL_DIR = $(INSTALL_LIB_DIR)/xorg/modules/drivers
@ -191,3 +200,6 @@ VG_PC_CFLAGS =
WAYLAND_EGL_PC_REQ_PRIV =
WAYLAND_EGL_PC_LIB_PRIV =
WAYLAND_EGL_PC_CFLAGS =
GBM_PC_REQ_PRIV =
GBM_PC_LIB_PRIV =
GBM_PC_CFLAGS =

37
configure.ac
View File

@ -352,6 +352,7 @@ GLESv2_LIB_NAME='lib$(GLESv2_LIB).'${LIB_EXTENSION}
VG_LIB_NAME='lib$(VG_LIB).'${LIB_EXTENSION}
GLAPI_LIB_NAME='lib$(GLAPI_LIB).'${LIB_EXTENSION}
WAYLAND_EGL_LIB_NAME='lib$(WAYLAND_EGL_LIB).'${LIB_EXTENSION}
GBM_LIB_NAME='lib$(GBM_LIB).'${LIB_EXTENSION}
GL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLU_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLU_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
@ -365,6 +366,7 @@ GLESv2_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLESv2_LIB)'${LIB_VERSION_SEPARATOR}'*'${LI
VG_LIB_GLOB=${LIB_PREFIX_GLOB}'$(VG_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLAPI_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLAPI_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
WAYLAND_EGL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(WAYLAND_EGL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GBM_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GBM_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
AC_SUBST([GL_LIB_NAME])
AC_SUBST([GLU_LIB_NAME])
@ -377,6 +379,7 @@ AC_SUBST([GLESv2_LIB_NAME])
AC_SUBST([VG_LIB_NAME])
AC_SUBST([GLAPI_LIB_NAME])
AC_SUBST([WAYLAND_EGL_LIB_NAME])
AC_SUBST([GBM_LIB_NAME])
AC_SUBST([GL_LIB_GLOB])
AC_SUBST([GLU_LIB_GLOB])
@ -389,6 +392,7 @@ AC_SUBST([GLESv2_LIB_GLOB])
AC_SUBST([VG_LIB_GLOB])
AC_SUBST([GLAPI_LIB_GLOB])
AC_SUBST([WAYLAND_EGL_LIB_GLOB])
AC_SUBST([GBM_LIB_GLOB])
dnl
dnl Arch/platform-specific settings
@ -543,6 +547,11 @@ AC_ARG_ENABLE([egl],
[disable EGL library @<:@default=enabled@:>@])],
[enable_egl="$enableval"],
[enable_egl=yes])
AC_ARG_ENABLE([gbm],
[AS_HELP_STRING([--enable-gbm],
[enable gbm library @<:@default=auto@:>@])],
[enable_gbm="$enableval"],
[enable_gbm=auto])
AC_ARG_ENABLE([gallium_egl],
[AS_HELP_STRING([--enable-gallium-egl],
[enable optional EGL state tracker (not required
@ -1244,6 +1253,34 @@ fi
AC_SUBST([EGL_LIB_DEPS])
AC_SUBST([EGL_DRIVERS_DIRS])
dnl
dnl gbm configuration
dnl
if test "x$enable_gbm" = xauto; then
case "$with_egl_platforms" in
*drm*)
enable_gbm=yes ;;
*)
enable_gbm=no ;;
esac
fi
if test "x$enable_gbm" = xyes; then
SRC_DIRS="$SRC_DIRS gbm"
GBM_BACKEND_DIRS=""
PKG_CHECK_MODULES([LIBUDEV], [libudev], [],
AC_MSG_ERROR([gbm needs udev]))
GBM_LIB_DEPS="$DLOPEN_LIBS $LIBUDEV_LIBS"
fi
AC_SUBST([GBM_LIB_DEPS])
AC_SUBST([GBM_BACKEND_DIRS])
GBM_PC_REQ_PRIV="libudev"
GBM_PC_LIB_PRIV="$DLOPEN_LIBS"
GBM_PC_CFLAGS=
AC_SUBST([GBM_PC_REQ_PRIV])
AC_SUBST([GBM_PC_LIB_PRIV])
AC_SUBST([GBM_PC_CFLAGS])
dnl
dnl EGL Gallium configuration
dnl

6
include/EGL/eglplatform.h
View File

@ -84,6 +84,12 @@ typedef struct wl_display *EGLNativeDisplayType;
typedef struct wl_egl_pixmap *EGLNativePixmapType;
typedef struct wl_egl_window *EGLNativeWindowType;
#elif defined(__GBM__)
typedef struct gbm_device *EGLNativeDisplayType;
typedef struct gbm_bo *EGLNativePixmapType;
typedef void *EGLNativeWindowType;
#elif defined(__unix__) || defined(__unix)
#ifdef MESA_EGL_NO_X11_HEADERS

14
src/gbm/Makefile Normal file
View File

@ -0,0 +1,14 @@
# src/gbm/Makefile
TOP = ../..
include $(TOP)/configs/current
SUBDIRS = backends main
default install clean:
@for dir in $(SUBDIRS) ; do \
if [ -d $$dir ] ; then \
(cd $$dir && $(MAKE) $@) || exit 1 ; \
fi \
done

14
src/gbm/backends/Makefile Normal file
View File

@ -0,0 +1,14 @@
# src/gbm/backends/Makefile
TOP = ../../..
include $(TOP)/configs/current
SUBDIRS = $(GBM_BACKEND_DIRS)
default install clean:
@for dir in $(SUBDIRS) ; do \
if [ -d $$dir ] ; then \
(cd $$dir ; $(MAKE) $@) || exit 1 ; \
fi \
done

65
src/gbm/backends/Makefile.template Normal file
View File

@ -0,0 +1,65 @@
# src/gbm/backends/Makefile.template
#
# Backends should define
#
# GBM_BACKEND, the driver name
# GBM_SOURCES, the driver sources
# GBM_INCLUDES, the include pathes
# GBM_CFLAGS, additional CFLAGS
# GBM_LIBS, additional LIBS
#
# before including this template.
#
GBM_BACKEND_PATH = $(TOP)/$(LIB_DIR)/gbm/$(GBM_BACKEND).so
GBM_OBJECTS = $(GBM_SOURCES:.c=.o)
# built-in or external
ifeq ($(GBM_BUILTIN), true)
GBM_TARGET = lib$(GBM_BACKEND).a
GBM_INSTALL =
else
GBM_TARGET = $(GBM_BACKEND_PATH)
GBM_INSTALL = install-so
endif
default: depend $(GBM_TARGET)
$(GBM_BACKEND_PATH): $(GBM_BACKEND).so
@$(INSTALL) -d $(TOP)/$(LIB_DIR)/gbm
$(INSTALL) $< $(TOP)/$(LIB_DIR)/gbm
$(GBM_BACKEND).so: $(GBM_OBJECTS) Makefile $(TOP)/src/gbm/backends/Makefile.template
@$(MKLIB) -o $(GBM_BACKEND).so -noprefix \
-linker '$(CC)' -ldflags '-L$(TOP)/$(LIB_DIR) $(LDFLAGS)' \
$(MKLIB_OPTIONS) \
$(GBM_OBJECTS) $(GBM_LIBS) -l$(GBM_LIB)
lib$(GBM_BACKEND).a: $(GBM_OBJECTS) Makefile $(TOP)/src/gbm/backends/Makefile.template
@$(MKLIB) -o $(GBM_BACKEND) -static $(GBM_OBJECTS)
.c.o:
$(CC) -c $(GBM_INCLUDES) $(CFLAGS) $(GBM_CFLAGS) $< -o $@
install-so: $(GBM_BACKEND_PATH)
$(INSTALL) -d $(DESTDIR)$(GBM_BACKEND_INSTALL_DIR)
$(MINSTALL) $(GBM_BACKEND_PATH) $(DESTDIR)$(GBM_BACKEND_INSTALL_DIR)
install: $(GBM_INSTALL)
clean:
rm -f $(GBM_BACKEND).so
rm -f lib$(GBM_BACKEND).a
rm -f $(GBM_OBJECTS)
rm -f depend depend.bak
depend: $(GBM_SOURCES)
@ echo "running $(MKDEP)"
@ rm -f depend
@ touch depend
$(MKDEP) $(MKDEP_OPTIONS) $(GBM_INCLUDES) $(GBM_SOURCES) \
>/dev/null 2>/dev/null
sinclude depend
# DO NOT DELETE

85
src/gbm/main/Makefile Normal file
View File

@ -0,0 +1,85 @@
# src/gbm/main/Makefile
TOP = ../../..
include $(TOP)/configs/current
INCLUDE_DIRS = -I$(TOP)/include
HEADERS = \
common.h \
backend.h \
gbmint.h \
gbm.h
SOURCES = \
gbm.c \
backend.c \
common.c
OBJECTS = $(SOURCES:.c=.o)
# use dl*() to load drivers
LOCAL_CFLAGS = $(LIBUDEV_CFLAGS) $(DLOPEN_CFLAGS) \
-D_OS_UNIX=1 -DMODULEDIR='"$(GBM_BACKEND_INSTALL_DIR)"'
LOCAL_LIBS =
.c.o:
$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $(LOCAL_CFLAGS) $< -o $@
default: depend library
library: $(TOP)/$(LIB_DIR)/libgbm.so
$(TOP)/$(LIB_DIR)/libgbm.so: $(OBJECTS) $(LOCAL_LIBS)
$(MKLIB) -o gbm -linker '$(CC)' -ldflags '$(LDFLAGS)' \
-major 1 -minor 0 \
-install $(TOP)/$(LIB_DIR) $(MKLIB_OPTIONS) \
-L$(TOP)/$(LIB_DIR) $(GBM_LIB_DEPS) \
$(OBJECTS) $(LOCAL_LIBS)
install-headers:
$(INSTALL) -d $(DESTDIR)$(INSTALL_INC_DIR)/
$(INSTALL) -m 644 $(TOP)/src/gbm/main/gbm.h \
$(DESTDIR)$(INSTALL_INC_DIR)
PKG_CONFIG_DIR = $(INSTALL_LIB_DIR)/pkgconfig
gbm_pcedit = sed \
-e 's,@INSTALL_DIR@,$(INSTALL_DIR),' \
-e 's,@INSTALL_LIB_DIR@,$(INSTALL_LIB_DIR),' \
-e 's,@INSTALL_INC_DIR@,$(INSTALL_INC_DIR),' \
-e 's,@VERSION@,0.0.0,' \
-e 's,@GBM_PC_REQ_PRIV@,$(GBM_PC_REQ_PRIV),' \
-e 's,@GBM_PC_LIB_PRIV@,$(GBM_PC_LIB_PRIV),' \
-e 's,@GBM_PC_CFLAGS@,$(GBM_PC_CFLAGS),' \
-e 's,@GBM_LIB@,$(GBM_LIB),'
gbm.pc: gbm.pc.in
$(gbm_pcedit) $< > $@
install: default install-headers gbm.pc
$(INSTALL) -d $(DESTDIR)$(INSTALL_LIB_DIR)
$(MINSTALL) $(TOP)/$(LIB_DIR)/libgbm.so* \
$(DESTDIR)$(INSTALL_LIB_DIR)
$(INSTALL) -d $(DESTDIR)$(PKG_CONFIG_DIR)
$(INSTALL) -m 644 gbm.pc $(DESTDIR)$(PKG_CONFIG_DIR)
clean:
-rm -f *.o
-rm -f depend depend.bak
-rm -f gbm.pc
depend: $(SOURCES) $(HEADERS)
@ echo "running $(MKDEP)"
@ rm -f depend
@ touch depend
$(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \
$(SOURCES) $(HEADERS) > /dev/null 2>/dev/null
-include depend
# DO NOT DELETE

124
src/gbm/main/backend.c Normal file
View File

@ -0,0 +1,124 @@
/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <dlfcn.h>
#include "backend.h"
#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
struct backend_desc {
const char *name;
const struct gbm_backend *builtin;
};
static const struct backend_desc backends[] = {
};
static const void *
load_backend(const struct backend_desc *backend)
{
char path[PATH_MAX];
const void *init = NULL;
void *module;
const char *name;
const char *entrypoint = "gbm_backend";
if (backend == NULL)
return NULL;
name = backend->name;
if (backend->builtin) {
init = backend->builtin;
} else {
if (name[0] != '/')
snprintf(path, sizeof path, MODULEDIR "/%s", name);
else
snprintf(path, sizeof path, "%s", name);
module = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
if (!module) {
fprintf(stderr,
"failed to load module: %s\n", dlerror());
return NULL;
}
init = dlsym(module, entrypoint);
if (!init)
return NULL;
}
return init;
}
static const struct backend_desc *
find_backend(const char *name)
{
const struct backend_desc *backend = NULL;
int i;
for (i = 0; i < ARRAY_SIZE(backends); ++i) {
if (strcmp(backends[i].name, name) == 0) {
backend = &backends[i];
break;
}
}
return backend;
}
struct gbm_device *
_gbm_create_device(int fd)
{
const struct gbm_backend *backend = NULL;
struct gbm_device *dev = NULL;
int i;
const char *b;
b = getenv("GBM_BACKEND");
if (b)
backend = load_backend(find_backend(b));
if (backend)
dev = backend->create_device(fd);
for (i = 0; i < ARRAY_SIZE(backends) && dev == NULL; ++i) {
backend = load_backend(&backends[i]);
if (backend == NULL)
continue;
dev = backend->create_device(fd);
}
return dev;
}

36
src/gbm/main/backend.h Normal file
View File

@ -0,0 +1,36 @@
/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef MODULE_H_
#define MODULE_H_
#include "gbmint.h"
struct gbm_device *
_gbm_create_device(int fd);
#endif

88
src/gbm/main/common.c Normal file
View File

@ -0,0 +1,88 @@
/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include <stdio.h>
#include <string.h>
#include <libudev.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "common.h"
#include "gbmint.h"
GBM_EXPORT struct udev_device *
_gbm_udev_device_new_from_fd(struct udev *udev, int fd)
{
struct udev_device *device;
struct stat buf;
if (fstat(fd, &buf) < 0) {
fprintf(stderr, "gbm: failed to stat fd %d", fd);
return NULL;
}
device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
if (device == NULL) {
fprintf(stderr,
"gbm: could not create udev device for fd %d", fd);
return NULL;
}
return device;
}
GBM_EXPORT char *
_gbm_fd_get_device_name(int fd)
{
struct udev *udev;
struct udev_device *device;
const char *const_device_name;
char *device_name = NULL;
udev = udev_new();
device = _gbm_udev_device_new_from_fd(udev, fd);
if (device == NULL)
return NULL;
const_device_name = udev_device_get_devnode(device);
if (!const_device_name)
goto out;
device_name = strdup(const_device_name);
out:
udev_device_unref(device);
udev_unref(udev);
return device_name;
}
GBM_EXPORT void
_gbm_log(const char *fmt_str, ...)
{
}

42
src/gbm/main/common.h Normal file
View File

@ -0,0 +1,42 @@
/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef _COMMON_H_
#define _COMMON_H_
#include <libudev.h>
struct udev_device *
_gbm_udev_device_new_from_fd(struct udev *udev, int fd);
char *
_gbm_fd_get_device_name(int fd);
void
_gbm_log(const char *fmt_str, ...);
#endif

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/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef _COMMON_DRM_H_
#define _COMMON_DRM_H_
#include "gbmint.h"
enum gbm_drm_driver_type {
GBM_DRM_DRIVER_TYPE_DRI,
GBM_DRM_DRIVER_TYPE_GALLIUM,
};
struct gbm_drm_device {
struct gbm_device base;
enum gbm_drm_driver_type type;
char *driver_name;
};
struct gbm_drm_bo {
struct gbm_bo base;
};
#endif

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/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#define _BSD_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "gbm.h"
#include "gbmint.h"
#include "common.h"
#include "backend.h"
#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
struct gbm_device *devices[16];
static int device_num = 0;
GBM_EXPORT int
gbm_device_get_fd(struct gbm_device *gbm)
{
return gbm->fd;
}
/* FIXME: maybe superfluous, use udev subclass from the fd? */
GBM_EXPORT const char *
gbm_device_get_backend_name(struct gbm_device *gbm)
{
return gbm->name;
}
int
gbm_device_is_format_supported(struct gbm_device *gbm,
enum gbm_bo_format format,
uint32_t usage)
{
return gbm->is_format_supported(gbm, format, usage);
}
GBM_EXPORT void
gbm_device_destroy(struct gbm_device *gbm)
{
gbm->refcount--;
if (gbm->refcount == 0)
gbm->destroy(gbm);
}
GBM_EXPORT struct gbm_device *
_gbm_mesa_get_device(int fd)
{
struct gbm_device *gbm = NULL;
struct stat buf;
dev_t dev;
int i;
if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
fprintf(stderr, "_gbm_mesa_get_device: invalid fd: %d\n", fd);
return NULL;
}
for (i = 0; i < device_num; ++i) {
dev = devices[i]->stat.st_rdev;
if (major(dev) == major(buf.st_rdev) &&
minor(dev) == minor(buf.st_rdev)) {
gbm = devices[i];
gbm->refcount++;
break;
}
}
return gbm;
}
GBM_EXPORT struct gbm_device *
gbm_create_device(int fd)
{
struct gbm_device *gbm = NULL;
struct stat buf;
if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
fprintf(stderr, "gbm_create_device: invalid fd: %d\n", fd);
return NULL;
}
if (device_num == 0)
memset(devices, 0, sizeof devices);
gbm = _gbm_create_device(fd);
if (gbm == NULL)
return NULL;
gbm->dummy = gbm_create_device;
gbm->stat = buf;
gbm->refcount = 1;
if (device_num < ARRAY_SIZE(devices)-1)
devices[device_num++] = gbm;
return gbm;
}
GBM_EXPORT unsigned int
gbm_bo_get_width(struct gbm_bo *bo)
{
return bo->width;
}
GBM_EXPORT unsigned int
gbm_bo_get_height(struct gbm_bo *bo)
{
return bo->height;
}
GBM_EXPORT uint32_t
gbm_bo_get_pitch(struct gbm_bo *bo)
{
return bo->pitch;
}
GBM_EXPORT union gbm_bo_handle
gbm_bo_get_handle(struct gbm_bo *bo)
{
return bo->handle;
}
GBM_EXPORT void
gbm_bo_destroy(struct gbm_bo *bo)
{
bo->gbm->bo_destroy(bo);
}
GBM_EXPORT struct gbm_bo *
gbm_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
enum gbm_bo_format format, uint32_t usage)
{
if (width == 0 || height == 0)
return NULL;
if (usage & GBM_BO_USE_CURSOR_64X64 &&
(width != 64 || height != 64))
return NULL;
return gbm->bo_create(gbm, width, height, format, usage);
}
GBM_EXPORT struct gbm_bo *
gbm_bo_create_from_egl_image(struct gbm_device *gbm,
void *egl_dpy, void *egl_image,
uint32_t width, uint32_t height,
uint32_t usage)
{
if (width == 0 || height == 0)
return NULL;
return gbm->bo_create_from_egl_image(gbm, egl_dpy, egl_image,
width, height, usage);
}

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/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef _GBM_H_
#define _GBM_H_
#define __GBM__ 1
#include <stdint.h>
struct gbm_device;
struct gbm_bo;
union gbm_bo_handle {
void *ptr;
int32_t s32;
uint32_t u32;
int64_t s64;
uint64_t u64;
};
enum gbm_bo_format {
GBM_BO_FORMAT_XRGB8888,
GBM_BO_FORMAT_ARGB8888,
};
enum gbm_bo_flags {
GBM_BO_USE_SCANOUT = (1 << 0),
GBM_BO_USE_CURSOR_64X64 = (1 << 1),
GBM_BO_USE_RENDERING = (1 << 2),
};
int
gbm_device_get_fd(struct gbm_device *gbm);
const char *
gbm_device_get_backend_name(struct gbm_device *gbm);
int
gbm_device_is_format_supported(struct gbm_device *gbm,
enum gbm_bo_format format,
uint32_t usage);
void
gbm_device_destroy(struct gbm_device *gbm);
struct gbm_device *
gbm_create_device(int fd);
struct gbm_bo *
gbm_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
enum gbm_bo_format format, uint32_t flags);
struct gbm_bo *
gbm_bo_create_from_egl_image(struct gbm_device *gbm,
void *egl_dpy, void *egl_img,
uint32_t width, uint32_t height,
uint32_t usage);
uint32_t
gbm_bo_get_width(struct gbm_bo *bo);
uint32_t
gbm_bo_get_height(struct gbm_bo *bo);
uint32_t
gbm_bo_get_pitch(struct gbm_bo *bo);
union gbm_bo_handle
gbm_bo_get_handle(struct gbm_bo *bo);
void
gbm_bo_destroy(struct gbm_bo *bo);
#endif

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prefix=@INSTALL_DIR@
exec_prefix=${prefix}
libdir=@INSTALL_LIB_DIR@
includedir=@INSTALL_INC_DIR@
Name: gbm
Description: Mesa gbm library
Requires.private: @GBM_PC_REQ_PRIV@
Version: @VERSION@
Libs: -L${libdir} -l@GBM_LIB@
Libs.private: @GBM_PC_LIB_PRIV@
Cflags: -I${includedir} @GBM_PC_CFLAGS@

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/*
* Copyright © 2011 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef INTERNAL_H_
#define INTERNAL_H_
#include "gbm.h"
#include <sys/stat.h>
/* GCC visibility */
#if defined(__GNUC__) && __GNUC__ >= 4
#define GBM_EXPORT __attribute__ ((visibility("default")))
#else
#define GBM_EXPORT
#endif
struct gbm_device {
/* Hack to make a gbm_device detectable by its first element. */
struct gbm_device *(*dummy)(int);
int fd;
const char *name;
unsigned int refcount;
struct stat stat;
void (*destroy)(struct gbm_device *gbm);
int (*is_format_supported)(struct gbm_device *gbm,
enum gbm_bo_format format,
uint32_t usage);
struct gbm_bo *(*bo_create)(struct gbm_device *gbm,
uint32_t width, uint32_t height,
enum gbm_bo_format format,
uint32_t usage);
struct gbm_bo *(*bo_create_from_egl_image)(struct gbm_device *gbm,
void *egl_dpy, void *egl_img,
uint32_t width, uint32_t height,
uint32_t usage);
void (*bo_destroy)(struct gbm_bo *bo);
};
struct gbm_bo {
struct gbm_device *gbm;
uint32_t width;
uint32_t height;
uint32_t pitch;
union gbm_bo_handle handle;
};
struct gbm_backend {
const char *backend_name;
struct gbm_device *(*create_device)(int fd);
};
GBM_EXPORT struct gbm_device *
_gbm_mesa_get_device(int fd);
#endif