From: SooChan Lim Date: Mon, 7 Mar 2016 10:45:16 +0000 (+0900) Subject: add initial codes X-Git-Tag: accepted/tizen/common/20160307.154853~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F56%2F61356%2F1;p=platform%2Fadaptation%2Flibtbm-shm.git add initial codes Change-Id: Id4d05432764208383f08d299331dbe19f872082e --- diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..edf3b5c --- /dev/null +++ b/AUTHORS @@ -0,0 +1,3 @@ +SooChan Lim +SangJin Lee +Boram Park diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..52fd458 --- /dev/null +++ b/COPYING @@ -0,0 +1,18 @@ +Copyright (C) 2000 - 2012 Samsung Electronics co., Ltd. All Rights Reserved. + +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 fur- +nished to do so, subject to the following conditions: + +The above copyright notice and this permission notice 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, FIT- +NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CON- +NECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..e69de29 diff --git a/INSTALL b/INSTALL new file mode 100644 index 0000000..8b82ade --- /dev/null +++ b/INSTALL @@ -0,0 +1,291 @@ +Installation Instructions +************************* + +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, +2006, 2007, 2008 Free Software Foundation, Inc. + + This file is free documentation; the Free Software Foundation gives +unlimited permission to copy, distribute and modify it. + +Basic Installation +================== + + Briefly, the shell commands `./configure; make; make install' should +configure, build, and install this package. 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Run +`configure --help' for more details. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..af437a6 --- /dev/null +++ b/Makefile.am @@ -0,0 +1 @@ +SUBDIRS = src diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..e69de29 diff --git a/autogen.sh b/autogen.sh new file mode 100644 index 0000000..904cd67 --- /dev/null +++ b/autogen.sh @@ -0,0 +1,12 @@ +#! /bin/sh + +srcdir=`dirname $0` +test -z "$srcdir" && srcdir=. + +ORIGDIR=`pwd` +cd $srcdir + +autoreconf -v --install || exit 1 +cd $ORIGDIR || exit $? + +$srcdir/configure --enable-maintainer-mode "$@" diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..ccb5639 --- /dev/null +++ b/configure.ac @@ -0,0 +1,71 @@ +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# on the rights to use, copy, modify, merge, publish, distribute, sub +# license, and/or sell copies of the Software, and to permit persons to whom +# the Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice (including the next +# paragraph) shall be included in all copies or substantial portions of the +# Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL +# ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +AC_PREREQ(2.60) +AC_INIT(libtbm-shm, 1.0.5) +AC_USE_SYSTEM_EXTENSIONS +AC_CONFIG_SRCDIR([Makefile.am]) +AM_INIT_AUTOMAKE([dist-bzip2]) + +AM_CONFIG_HEADER([config.h]) + +AC_DISABLE_STATIC +AC_PROG_LIBTOOL +AC_PROG_CC + +AC_HEADER_STDC +AC_SYS_LARGEFILE +AC_FUNC_ALLOCA + +# Enable quiet compiles on automake 1.11. +m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) + +PKG_CHECK_MODULES(LIBDRM, libdrm) +PKG_CHECK_MODULES(LIBTBM, libtbm) +PKG_CHECK_MODULES(DLOG, dlog) + +AC_ARG_ENABLE(cachectrl, + AS_HELP_STRING([--enable-cachectrl], + [Enable cache control (default: enable)]), + [CACHE_CTRL=$enableval], [CACHE_CTRL=yes]) + +if test "x$CACHE_CTRL" = xyes; then + AC_DEFINE(ENABLE_CACHECRTL, 1, [Enable cache control]) +fi + +LIBTBM_SHM_CFLAGS="$LIBDRM_CFLAGS $LIBTBM_CFLAGS $DLOG_CFLAGS " +LIBTBM_SHM_LIBS="$LIBDRM_LIBS $LIBTBM_LIBS $DLOG_LIBS " +AC_SUBST(LIBTBM_SHM_CFLAGS) +AC_SUBST(LIBTBM_SHM_LIBS) + +bufmgr_dir=${libdir#*/} +AC_SUBST(bufmgr_dir) + +AC_OUTPUT([ + Makefile + src/Makefile]) + +echo "" +echo "CFLAGS : $CFLAGS" +echo "LDFLAGS : $LDFLAGS" +echo "LIBTBM_SHM_CFLAGS : $LIBTBM_SHM_CFLAGS" +echo "LIBTBM_SHM_LIBS : $LIBTBM_SHM_LIBS" +echo "bufmgr_dir : $bufmgr_dir" +echo "" + diff --git a/libtbm-shm.manifest b/libtbm-shm.manifest new file mode 100644 index 0000000..97e8c31 --- /dev/null +++ b/libtbm-shm.manifest @@ -0,0 +1,5 @@ + + + + + diff --git a/packaging/libtbm-shm.spec b/packaging/libtbm-shm.spec new file mode 100644 index 0000000..cd8c0f9 --- /dev/null +++ b/packaging/libtbm-shm.spec @@ -0,0 +1,47 @@ +Name: libtbm-shm +Version: 1.0.9 +Release: 1 +License: MIT +Summary: Tizen Buffer Manager - drm shm backend +Group: System/Libraries +ExcludeArch: i586 +Source0: %{name}-%{version}.tar.gz + +BuildRequires: pkgconfig(pthread-stubs) +BuildRequires: pkgconfig(libdrm) +BuildRequires: pkgconfig(libtbm) +BuildRequires: pkgconfig(dlog) + +%description +descriptionion: Tizen Buffer manager backend module uses drm shm + +%prep +%setup -q + +%build + +%reconfigure --prefix=%{_prefix} --libdir=%{_libdir}/bufmgr --disable-cachectrl \ + CFLAGS="${CFLAGS} -Wall -Werror" LDFLAGS="${LDFLAGS} -Wl,--hash-style=both -Wl,--as-needed" + +make %{?_smp_mflags} + +%install +rm -rf %{buildroot} +mkdir -p %{buildroot}/usr/share/license +cp -af COPYING %{buildroot}/usr/share/license/%{name} +%make_install + + +%post +if [ -f %{_libdir}/bufmgr/libtbm_default.so ]; then + rm -rf %{_libdir}/bufmgr/libtbm_default.so +fi +ln -s libtbm_shm.so %{_libdir}/bufmgr/libtbm_default.so + +%postun -p /sbin/ldconfig + +%files +%manifest libtbm-shm.manifest +%{_libdir}/bufmgr/libtbm_*.so* +/usr/share/license/%{name} + diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..05a380b --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,11 @@ +AM_CFLAGS = \ + @LIBTBM_SHM_CFLAGS@ \ + -I$(top_srcdir) \ + -I$(top_srcdir)/src + +libtbm_shm_la_LTLIBRARIES = libtbm_shm.la +libtbm_shm_ladir = /${bufmgr_dir} +libtbm_shm_la_LIBADD = @LIBTBM_SHM_LIBS@ + +libtbm_shm_la_SOURCES = \ + tbm_bufmgr_shm.c diff --git a/src/tbm_bufmgr_shm.c b/src/tbm_bufmgr_shm.c new file mode 100644 index 0000000..17e86b6 --- /dev/null +++ b/src/tbm_bufmgr_shm.c @@ -0,0 +1,1142 @@ +/************************************************************************** + +libtbm_shm + +Copyright 2012 Samsung Electronics co., Ltd. All Rights Reserved. + +Contact: SooChan Lim , Sangjin Lee + +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, sub license, 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 NON-INFRINGEMENT. +IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. + +**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DEBUG +#define USE_DMAIMPORT +#define TBM_COLOR_FORMAT_COUNT 8 + +#ifdef DEBUG +#define LOG_TAG "TBM_BACKEND" +#include +static int bDebug=0; + +char* target_name() +{ + FILE *f; + char *slash; + static int initialized = 0; + static char app_name[128]; + + if ( initialized ) + return app_name; + + /* get the application name */ + f = fopen("/proc/self/cmdline", "r"); + + if ( !f ) + { + return 0; + } + + memset(app_name, 0x00, sizeof(app_name)); + + if ( fgets(app_name, 100, f) == NULL ) + { + fclose(f); + return 0; + } + + fclose(f); + + if ( (slash=strrchr(app_name, '/')) != NULL ) + { + memmove(app_name, slash+1, strlen(slash)); + } + + initialized = 1; + + return app_name; +} +#define TBM_SHM_LOG(fmt, args...) LOGE("\033[31m" "[%s]" fmt "\033[0m", target_name(), ##args) +#define DBG(fmt, args...) if(bDebug&01) LOGE(fmt, ##args) +#else +#define TBM_SHM_LOG(...) +#define DBG(...) +#endif + +#define SIZE_ALIGN( value, base ) (((value) + ((base) - 1)) & ~((base) - 1)) + +#define TBM_SURFACE_ALIGNMENT_PLANE (64) +#define TBM_SURFACE_ALIGNMENT_PITCH_RGB (64) +#define TBM_SURFACE_ALIGNMENT_PITCH_YUV (16) + + +/* check condition */ +#define SHM_RETURN_IF_FAIL(cond) {\ + if (!(cond)) {\ + TBM_SHM_LOG ("[%s] : '%s' failed.\n", __FUNCTION__, #cond);\ + return;\ + }\ +} +#define SHM_RETURN_VAL_IF_FAIL(cond, val) {\ + if (!(cond)) {\ + TBM_SHM_LOG ("[%s] : '%s' failed.\n", __FUNCTION__, #cond);\ + return val;\ + }\ +} + +typedef struct _tbm_bufmgr_shm *tbm_bufmgr_shm; +typedef struct _tbm_bo_shm *tbm_bo_shm; + +/* tbm buffor object for shm */ +struct _tbm_bo_shm +{ + int shmid; + key_t key; + void * pBase; + + unsigned int size; + + unsigned int flags_shm; + unsigned int flags_tbm; + + pthread_mutex_t mutex; + int device; + int opt; +}; + +/* tbm bufmgr private for shm */ +struct _tbm_bufmgr_shm +{ + int isLocal; + void* hashBos; +}; + +char *STR_DEVICE[]= +{ + "DEF", + "CPU", + "2D", + "3D", + "MM" +}; + +char *STR_OPT[]= +{ + "NONE", + "RD", + "WR", + "RDWR" +}; + + +uint32_t tbm_shm_color_format_list[TBM_COLOR_FORMAT_COUNT] = { TBM_FORMAT_RGBA8888, + TBM_FORMAT_BGRA8888, + TBM_FORMAT_RGBX8888, + TBM_FORMAT_RGB888, + TBM_FORMAT_NV12, + TBM_FORMAT_NV21, + TBM_FORMAT_YUV420, + TBM_FORMAT_YVU420 }; + +static tbm_bo_handle +_shm_bo_handle (tbm_bo_shm bo_shm, int device) +{ + tbm_bo_handle bo_handle; + memset (&bo_handle, 0x0, sizeof (uint64_t)); + + switch(device) + { + case TBM_DEVICE_DEFAULT: + case TBM_DEVICE_2D: + bo_handle.u32 = (uint32_t)bo_shm->shmid; + break; + case TBM_DEVICE_CPU: + bo_handle.ptr = (void *)bo_shm->pBase; + break; + case TBM_DEVICE_3D: + case TBM_DEVICE_MM: + default: + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Not supported device:%d\n", + getpid(), __FUNCTION__, __LINE__, device); + bo_handle.ptr = (void *) NULL; + break; + } + + return bo_handle; +} + +static int +tbm_shm_bo_size (tbm_bo bo) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + + return bo_shm->size; +} + +static void * +tbm_shm_bo_alloc (tbm_bo bo, int size, int flags) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + tbm_bufmgr_shm bufmgr_shm; + + static key_t key = 1; + + bufmgr_shm = (tbm_bufmgr_shm)tbm_backend_get_bufmgr_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bufmgr_shm!=NULL, 0); + + if (flags & TBM_BO_SCANOUT) + { + TBM_SHM_LOG ("[libtbm-shm:%d] warning %s:%d TBM_BO_SCANOUT ins't supported\n", + getpid(), __FUNCTION__, __LINE__); + return 0; + } + + bo_shm = calloc (1, sizeof(struct _tbm_bo_shm)); + if (!bo_shm) + { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to allocate the bo private\n", + getpid(), __FUNCTION__, __LINE__); + return 0; + } + + //get next key for a allocated shm segment + key += 1; + + while ((bo_shm->shmid = shmget(key, size, IPC_CREAT | IPC_EXCL | 0666)) < 0) + { + if ( errno != EEXIST) + { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to allocate the shared memory segment (%s)\n", + getpid(), __FUNCTION__, __LINE__, strerror(errno)); + free (bo_shm); + return 0; + } + + //try to allocate the segment with next key; + key += 1; + } + + bo_shm->key = key; + + if ((bo_shm->pBase = shmat(bo_shm->shmid, NULL, 0)) == (char *) -1) { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to attach the shared memory segment (%s)\n", + getpid(), __FUNCTION__, __LINE__, strerror(errno)); + free(bo_shm); + return 0; + } + + bo_shm->size = size; + bo_shm->flags_shm = 0; + bo_shm->flags_tbm = TBM_BO_DEFAULT | TBM_BO_NONCACHABLE; + + DBG (" [%s] bo:%p, shmid:%d(%d), flags:%d(%d), size:%d\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key, + bo_shm->flags_tbm, bo_shm->flags_shm, + bo_shm->size); + + return (void *)bo_shm; +} + +static void +tbm_shm_bo_free(tbm_bo bo) +{ + tbm_bo_shm bo_shm; + tbm_bufmgr_shm bufmgr_shm; + + if (!bo) + return; + + bufmgr_shm = (tbm_bufmgr_shm)tbm_backend_get_bufmgr_priv(bo); + SHM_RETURN_IF_FAIL (bufmgr_shm!=NULL); + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_IF_FAIL (bo_shm!=NULL); + + DBG (" [%s] bo:%p, gem:%d(%d), size:%d\n",target_name(), + bo, + bo_shm->shmid, bo_shm->key, + bo_shm->size); + + /* Free shm object*/ + if (shmdt(bo_shm->pBase) == -1) + { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to detach shared memory segment bo:%p (%s)\n", + getpid(), __FUNCTION__, __LINE__, bo, strerror(errno)); + } + + free (bo_shm); +} + + +static void * +tbm_shm_bo_import (tbm_bo bo, unsigned int key) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + struct shmid_ds buf; + + bo_shm = calloc (1, sizeof(struct _tbm_bo_shm)); + if (!bo_shm) + { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to allocate the bo private\n", + getpid(), __FUNCTION__, __LINE__); + return 0; + } + + if((bo_shm->shmid = shmget(key, 0, 0666)) < 0) + { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to import the shared memory segment key=%d (%s)\n", + getpid(), __FUNCTION__, __LINE__, key, strerror(errno)); + free(bo_shm); + return 0; + } + + if ((bo_shm->pBase = shmat(bo_shm->shmid, NULL, 0)) == (char *) -1) { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to attach the shared memory segment (%s)\n", + getpid(), __FUNCTION__, __LINE__, strerror(errno)); + free(bo_shm); + return 0; + } + + /*Get the original data for this shmid data structure first.*/ + if (shmctl(bo_shm->shmid, IPC_STAT, &buf) < 0) { + TBM_SHM_LOG ("[libtbm-shm:%d] error %s:%d Fail to get IPC_STAT(%s)\n", + getpid(), __FUNCTION__, __LINE__, strerror(errno)); + free(bo_shm); + return 0; + } + + bo_shm->size = buf.shm_segsz; + bo_shm->flags_shm = 0; + bo_shm->key = key; + bo_shm->flags_tbm = TBM_BO_DEFAULT | TBM_BO_NONCACHABLE; + + DBG (" [%s] bo:%p, shm:%d(%d), flags:%d(%d), size:%d\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key, + bo_shm->flags_tbm, bo_shm->flags_shm, + bo_shm->size); + + return (void *)bo_shm; +} + +static unsigned int +tbm_shm_bo_export (tbm_bo bo) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bo_shm!=NULL, 0); + + DBG (" [%s] bo:%p, shm:%d(%d), flags:%d(%d), size:%d\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key, + bo_shm->flags_tbm, bo_shm->flags_shm, + bo_shm->size); + + return (unsigned int)bo_shm->key; +} + +static tbm_bo_handle +tbm_shm_bo_get_handle (tbm_bo bo, int device) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, (tbm_bo_handle) NULL); + + tbm_bo_handle bo_handle; + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bo_shm!=NULL, (tbm_bo_handle) NULL); + + DBG ("[%s] bo:%p, shm:%d(%d), flags:%d(%d), size:%d, %s\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key, + bo_shm->flags_tbm, bo_shm->flags_shm, + bo_shm->size, + STR_DEVICE[device]); + + /*Get mapped bo_handle*/ + bo_handle = _shm_bo_handle (bo_shm, device); + if (bo_handle.ptr == NULL) + { + TBM_SHM_LOG ("error Cannot get handle: shm:%d, device:%d\n", bo_shm->shmid, device); + return (tbm_bo_handle) NULL; + } + + return bo_handle; +} + +static tbm_bo_handle +tbm_shm_bo_map (tbm_bo bo, int device, int opt) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, (tbm_bo_handle) NULL); + + tbm_bo_handle bo_handle; + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bo_shm!=NULL, (tbm_bo_handle) NULL); + + DBG (" [%s] bo:%p, shm:%d(%d), %s, %s\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key, + STR_DEVICE[device], + STR_OPT[opt]); + + /*Get mapped bo_handle*/ + bo_handle = _shm_bo_handle (bo_shm, device); + if (bo_handle.ptr == NULL) + { + TBM_SHM_LOG ("error Cannot get handle: shm:%d, device:%d, opt:%d\n", bo_shm->shmid, device, opt); + return (tbm_bo_handle) NULL; + } + + return bo_handle; +} + +static int +tbm_shm_bo_unmap (tbm_bo bo) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bo_shm!=NULL, 0); + + DBG (" [%s] bo:%p, shm:%d(%d)\n", target_name(), + bo, + bo_shm->shmid, bo_shm->key); + + return 1; +} + +static int +tbm_shm_bo_get_global_key (tbm_bo bo) +{ + SHM_RETURN_VAL_IF_FAIL (bo!=NULL, 0); + + tbm_bo_shm bo_shm; + + bo_shm = (tbm_bo_shm)tbm_backend_get_bo_priv(bo); + SHM_RETURN_VAL_IF_FAIL (bo_shm!=NULL, 0); + + return bo_shm->key; +} + +static void +tbm_shm_bufmgr_deinit (void *priv) +{ + SHM_RETURN_IF_FAIL (priv!=NULL); + + tbm_bufmgr_shm bufmgr_shm; + + bufmgr_shm = (tbm_bufmgr_shm)priv; + + free (bufmgr_shm); +} + +int +tbm_shm_surface_supported_format(uint32_t **formats, uint32_t *num) +{ + uint32_t* color_formats=NULL; + + color_formats = (uint32_t*)calloc (1,sizeof(uint32_t)*TBM_COLOR_FORMAT_COUNT); + + if( color_formats == NULL ) + { + return 0; + } + memcpy( color_formats, tbm_shm_color_format_list , sizeof(uint32_t)*TBM_COLOR_FORMAT_COUNT ); + + + *formats = color_formats; + *num = TBM_COLOR_FORMAT_COUNT; + + fprintf (stderr, "tbm_shm_surface_supported_format count = %d \n",*num); + + return 1; +} + + +/** + * @brief get the plane data of the surface. + * @param[in] surface : the surface + * @param[in] width : the width of the surface + * @param[in] height : the height of the surface + * @param[in] format : the format of the surface + * @param[in] plane_idx : the format of the surface + * @param[out] size : the size of the plane + * @param[out] offset : the offset of the plane + * @param[out] pitch : the pitch of the plane + * @param[out] padding : the padding of the plane + * @return 1 if this function succeeds, otherwise 0. + */ +int +tbm_shm_surface_get_plane_data(tbm_surface_h surface, int width, int height, tbm_format format, int plane_idx, uint32_t *size, uint32_t *offset, uint32_t *pitch, int *bo_idx) +{ + int ret = 1; + int bpp; + int _offset =0; + int _pitch =0; + int _size =0; + int _bo_idx = 0; + + switch(format) + { + /* 16 bpp RGB */ + case TBM_FORMAT_XRGB4444: + case TBM_FORMAT_XBGR4444: + case TBM_FORMAT_RGBX4444: + case TBM_FORMAT_BGRX4444: + case TBM_FORMAT_ARGB4444: + case TBM_FORMAT_ABGR4444: + case TBM_FORMAT_RGBA4444: + case TBM_FORMAT_BGRA4444: + case TBM_FORMAT_XRGB1555: + case TBM_FORMAT_XBGR1555: + case TBM_FORMAT_RGBX5551: + case TBM_FORMAT_BGRX5551: + case TBM_FORMAT_ARGB1555: + case TBM_FORMAT_ABGR1555: + case TBM_FORMAT_RGBA5551: + case TBM_FORMAT_BGRA5551: + case TBM_FORMAT_RGB565: + bpp = 16; + _offset = 0; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + break; + /* 24 bpp RGB */ + case TBM_FORMAT_RGB888: + case TBM_FORMAT_BGR888: + bpp = 24; + _offset = 0; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + break; + /* 32 bpp RGB */ + case TBM_FORMAT_XRGB8888: + case TBM_FORMAT_XBGR8888: + case TBM_FORMAT_RGBX8888: + case TBM_FORMAT_BGRX8888: + case TBM_FORMAT_ARGB8888: + case TBM_FORMAT_ABGR8888: + case TBM_FORMAT_RGBA8888: + case TBM_FORMAT_BGRA8888: + bpp = 32; + _offset = 0; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + break; + + /* packed YCbCr */ + case TBM_FORMAT_YUYV: + case TBM_FORMAT_YVYU: + case TBM_FORMAT_UYVY: + case TBM_FORMAT_VYUY: + case TBM_FORMAT_AYUV: + bpp = 32; + _offset = 0; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + break; + + /* + * 2 plane YCbCr + * index 0 = Y plane, [7:0] Y + * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian + * or + * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian + */ + case TBM_FORMAT_NV12: + bpp = 12; + if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + else if( plane_idx ==1 ) + { + _offset = 0; + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 1; + } + break; + case TBM_FORMAT_NV21: + bpp = 12; + if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + else if( plane_idx ==1 ) + { + _offset = width*height; + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + break; + + case TBM_FORMAT_NV16: + case TBM_FORMAT_NV61: + bpp = 16; + //if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 0) + break; + } + //else if( plane_idx ==1 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + break; + + /* + * 3 plane YCbCr + * index 0: Y plane, [7:0] Y + * index 1: Cb plane, [7:0] Cb + * index 2: Cr plane, [7:0] Cr + * or + * index 1: Cr plane, [7:0] Cr + * index 2: Cb plane, [7:0] Cb + */ + /* + NATIVE_BUFFER_FORMAT_YV12 + NATIVE_BUFFER_FORMAT_I420 + */ + case TBM_FORMAT_YUV410: + case TBM_FORMAT_YVU410: + bpp = 9; + _bo_idx = 0; + break; + case TBM_FORMAT_YUV411: + case TBM_FORMAT_YVU411: + case TBM_FORMAT_YUV420: + case TBM_FORMAT_YVU420: + bpp = 12; + //if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 0) + break; + } + //else if( plane_idx == 1 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 1) + break; + } + //else if (plane_idx == 2 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + break; + case TBM_FORMAT_YUV422: + case TBM_FORMAT_YVU422: + bpp = 16; + //if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 0) + break; + } + //else if( plane_idx == 1 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 1) + break; + } + //else if (plane_idx == 2 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size = SIZE_ALIGN(_pitch*(height),TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + break; + case TBM_FORMAT_YUV444: + case TBM_FORMAT_YVU444: + bpp = 24; + //if(plane_idx == 0) + { + _offset = 0; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 0) + break; + } + //else if( plane_idx == 1 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + if(plane_idx == 1) + break; + } + //else if (plane_idx == 2 ) + { + _offset += _size; + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + _bo_idx = 0; + } + break; + default: + bpp = 0; + break; + } + + *size = _size; + *offset = _offset; + *pitch = _pitch; + *bo_idx = _bo_idx; + + return ret; +} + +int +tbm_shm_surface_get_num_bos(tbm_format format) +{ + int num = 0; + + switch(format) + { + /* 16 bpp RGB */ + case TBM_FORMAT_XRGB4444: + case TBM_FORMAT_XBGR4444: + case TBM_FORMAT_RGBX4444: + case TBM_FORMAT_BGRX4444: + case TBM_FORMAT_ARGB4444: + case TBM_FORMAT_ABGR4444: + case TBM_FORMAT_RGBA4444: + case TBM_FORMAT_BGRA4444: + case TBM_FORMAT_XRGB1555: + case TBM_FORMAT_XBGR1555: + case TBM_FORMAT_RGBX5551: + case TBM_FORMAT_BGRX5551: + case TBM_FORMAT_ARGB1555: + case TBM_FORMAT_ABGR1555: + case TBM_FORMAT_RGBA5551: + case TBM_FORMAT_BGRA5551: + case TBM_FORMAT_RGB565: + /* 24 bpp RGB */ + case TBM_FORMAT_RGB888: + case TBM_FORMAT_BGR888: + /* 32 bpp RGB */ + case TBM_FORMAT_XRGB8888: + case TBM_FORMAT_XBGR8888: + case TBM_FORMAT_RGBX8888: + case TBM_FORMAT_BGRX8888: + case TBM_FORMAT_ARGB8888: + case TBM_FORMAT_ABGR8888: + case TBM_FORMAT_RGBA8888: + case TBM_FORMAT_BGRA8888: + /* packed YCbCr */ + case TBM_FORMAT_YUYV: + case TBM_FORMAT_YVYU: + case TBM_FORMAT_UYVY: + case TBM_FORMAT_VYUY: + case TBM_FORMAT_AYUV: + /* + * 2 plane YCbCr + * index 0 = Y plane, [7:0] Y + * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian + * or + * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian + */ + case TBM_FORMAT_NV21: + case TBM_FORMAT_NV16: + case TBM_FORMAT_NV61: + /* + * 3 plane YCbCr + * index 0: Y plane, [7:0] Y + * index 1: Cb plane, [7:0] Cb + * index 2: Cr plane, [7:0] Cr + * or + * index 1: Cr plane, [7:0] Cr + * index 2: Cb plane, [7:0] Cb + */ + case TBM_FORMAT_YUV410: + case TBM_FORMAT_YVU410: + case TBM_FORMAT_YUV411: + case TBM_FORMAT_YVU411: + case TBM_FORMAT_YUV420: + case TBM_FORMAT_YVU420: + case TBM_FORMAT_YUV422: + case TBM_FORMAT_YVU422: + case TBM_FORMAT_YUV444: + case TBM_FORMAT_YVU444: + num = 1; + break; + + case TBM_FORMAT_NV12: + num = 2; + break; + + default: + num = 0; + break; + } + + return num; +} + +/** +* @brief get the size of the surface with a format. +* @param[in] surface : the surface +* @param[in] width : the width of the surface +* @param[in] height : the height of the surface +* @param[in] format : the format of the surface +* @return size of the surface if this function succeeds, otherwise 0. +*/ + +int +tbm_shm_surface_get_size(tbm_surface_h surface, int width, int height, tbm_format format) +{ + int ret = 0; + int bpp = 0; + int _pitch =0; + int _size =0; + int align =TBM_SURFACE_ALIGNMENT_PLANE; + + switch(format) + { + /* 16 bpp RGB */ + case TBM_FORMAT_XRGB4444: + case TBM_FORMAT_XBGR4444: + case TBM_FORMAT_RGBX4444: + case TBM_FORMAT_BGRX4444: + case TBM_FORMAT_ARGB4444: + case TBM_FORMAT_ABGR4444: + case TBM_FORMAT_RGBA4444: + case TBM_FORMAT_BGRA4444: + case TBM_FORMAT_XRGB1555: + case TBM_FORMAT_XBGR1555: + case TBM_FORMAT_RGBX5551: + case TBM_FORMAT_BGRX5551: + case TBM_FORMAT_ARGB1555: + case TBM_FORMAT_ABGR1555: + case TBM_FORMAT_RGBA5551: + case TBM_FORMAT_BGRA5551: + case TBM_FORMAT_RGB565: + bpp = 16; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + break; + /* 24 bpp RGB */ + case TBM_FORMAT_RGB888: + case TBM_FORMAT_BGR888: + bpp = 24; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + break; + /* 32 bpp RGB */ + case TBM_FORMAT_XRGB8888: + case TBM_FORMAT_XBGR8888: + case TBM_FORMAT_RGBX8888: + case TBM_FORMAT_BGRX8888: + case TBM_FORMAT_ARGB8888: + case TBM_FORMAT_ABGR8888: + case TBM_FORMAT_RGBA8888: + case TBM_FORMAT_BGRA8888: + bpp = 32; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_RGB); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + break; + /* packed YCbCr */ + case TBM_FORMAT_YUYV: + case TBM_FORMAT_YVYU: + case TBM_FORMAT_UYVY: + case TBM_FORMAT_VYUY: + case TBM_FORMAT_AYUV: + bpp = 32; + _pitch = SIZE_ALIGN((width*bpp)>>3,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + break; + /* + * 2 plane YCbCr + * index 0 = Y plane, [7:0] Y + * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian + * or + * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian + */ + case TBM_FORMAT_NV12: + case TBM_FORMAT_NV21: + bpp = 12; + //plane_idx == 0 + { + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx ==1 + { + _pitch = SIZE_ALIGN( width ,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + } + break; + + break; + case TBM_FORMAT_NV16: + case TBM_FORMAT_NV61: + bpp = 16; + //plane_idx == 0 + { + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx ==1 + { + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + + break; + /* + * 3 plane YCbCr + * index 0: Y plane, [7:0] Y + * index 1: Cb plane, [7:0] Cb + * index 2: Cr plane, [7:0] Cr + * or + * index 1: Cr plane, [7:0] Cr + * index 2: Cb plane, [7:0] Cb + */ + case TBM_FORMAT_YUV410: + case TBM_FORMAT_YVU410: + bpp = 9; + align = TBM_SURFACE_ALIGNMENT_PITCH_YUV; + break; + case TBM_FORMAT_YUV411: + case TBM_FORMAT_YVU411: + case TBM_FORMAT_YUV420: + case TBM_FORMAT_YVU420: + bpp = 12; + //plane_idx == 0 + { + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx == 1 + { + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx == 2 + { + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*(height/2),TBM_SURFACE_ALIGNMENT_PLANE); + } + + break; + case TBM_FORMAT_YUV422: + case TBM_FORMAT_YVU422: + bpp = 16; + //plane_idx == 0 + { + _pitch = SIZE_ALIGN(width,TBM_SURFACE_ALIGNMENT_PITCH_YUV); + _size = SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx == 1 + { + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + //plane_idx == 2 + { + _pitch = SIZE_ALIGN(width/2,TBM_SURFACE_ALIGNMENT_PITCH_YUV/2); + _size += SIZE_ALIGN(_pitch*height,TBM_SURFACE_ALIGNMENT_PLANE); + } + break; + case TBM_FORMAT_YUV444: + case TBM_FORMAT_YVU444: + bpp = 24; + align = TBM_SURFACE_ALIGNMENT_PITCH_YUV; + break; + + default: + bpp = 0; + break; + } + + if(_size > 0) + ret = _size; + else + ret = SIZE_ALIGN( (width * height * bpp) >> 3, align); + + return ret; + +} + +MODULEINITPPROTO (init_tbm_bufmgr_priv); + +static TBMModuleVersionInfo DumbVersRec = +{ + "shm", + "Samsung", + TBM_ABI_VERSION, +}; + +TBMModuleData tbmModuleData = { &DumbVersRec, init_tbm_bufmgr_priv}; + +int +init_tbm_bufmgr_priv (tbm_bufmgr bufmgr, int fd) +{ + tbm_bufmgr_shm bufmgr_shm; + tbm_bufmgr_backend bufmgr_backend; + + if (!bufmgr) + return 0; + + bufmgr_shm = calloc (1, sizeof(struct _tbm_bufmgr_shm)); + if (!bufmgr_shm) + { + TBM_SHM_LOG ("error: Fail to alloc bufmgr_shm!\n"); + return 0; + } + + bufmgr_backend = tbm_backend_alloc(); + if (!bufmgr_backend) + { + TBM_SHM_LOG ("error: Fail to create drm!\n"); + free (bufmgr_shm); + return 0; + } + + bufmgr_backend->priv = (void *)bufmgr_shm; + bufmgr_backend->bufmgr_deinit = tbm_shm_bufmgr_deinit, + bufmgr_backend->bo_size = tbm_shm_bo_size, + bufmgr_backend->bo_alloc = tbm_shm_bo_alloc, + bufmgr_backend->bo_free = tbm_shm_bo_free, + bufmgr_backend->bo_import = tbm_shm_bo_import, + bufmgr_backend->bo_import_fd = NULL, + bufmgr_backend->bo_export = tbm_shm_bo_export, + bufmgr_backend->bo_export_fd = NULL, + bufmgr_backend->bo_get_handle = tbm_shm_bo_get_handle, + bufmgr_backend->bo_map = tbm_shm_bo_map, + bufmgr_backend->bo_unmap = tbm_shm_bo_unmap, + bufmgr_backend->bo_cache_flush = NULL, + bufmgr_backend->bo_get_global_key = tbm_shm_bo_get_global_key; + bufmgr_backend->surface_get_plane_data = tbm_shm_surface_get_plane_data; + bufmgr_backend->surface_get_size = tbm_shm_surface_get_size; + bufmgr_backend->surface_supported_format = tbm_shm_surface_supported_format; + bufmgr_backend->fd_to_handle = NULL; + bufmgr_backend->surface_get_num_bos = tbm_shm_surface_get_num_bos; + + bufmgr_backend->flags = 0; + bufmgr_backend->bo_lock = NULL; + bufmgr_backend->bo_unlock = NULL; + + if (!tbm_backend_init (bufmgr, bufmgr_backend)) + { + TBM_SHM_LOG ("error: Fail to init backend!\n"); + tbm_backend_free (bufmgr_backend); + free (bufmgr_shm); + return 0; + } + +#ifdef DEBUG + { + char* env; + env = getenv ("TBM_SHM_DEBUG"); + if (env) + { + bDebug = atoi (env); + TBM_SHM_LOG ("TBM_SHM_DEBUG=%s\n", env); + } + else + { + bDebug = 0; + } + } +#endif + + return 1; +} + +