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-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/Android.mk13
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/EGLClientIface.h41
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp153
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.h55
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp190
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.h51
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.cpp39
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h59
-rw-r--r--tools/emulator/opengl/system/OpenglSystemCommon/gralloc_cb.h106
9 files changed, 707 insertions, 0 deletions
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/Android.mk b/tools/emulator/opengl/system/OpenglSystemCommon/Android.mk
new file mode 100644
index 000000000..61987489c
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/Android.mk
@@ -0,0 +1,13 @@
+LOCAL_PATH := $(call my-dir)
+
+$(call emugl-begin-shared-library,libOpenglSystemCommon)
+$(call emugl-import,libGLESv1_enc libGLESv2_enc lib_renderControl_enc)
+
+LOCAL_SRC_FILES := \
+ HostConnection.cpp \
+ QemuPipeStream.cpp \
+ ThreadInfo.cpp
+
+$(call emugl-export,C_INCLUDES,$(LOCAL_PATH) bionic/libc/private)
+
+$(call emugl-end-module)
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/EGLClientIface.h b/tools/emulator/opengl/system/OpenglSystemCommon/EGLClientIface.h
new file mode 100644
index 000000000..3c8cb5535
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/EGLClientIface.h
@@ -0,0 +1,41 @@
+/*
+* Copyright 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef _SYSTEM_COMMON_EGL_CLIENT_IFACE_H
+#define _SYSTEM_COMMON_EGL_CLIENT_IFACE_H
+
+struct EGLThreadInfo; // defined in ThreadInfo.h
+
+typedef struct {
+ EGLThreadInfo* (*getThreadInfo)();
+ const char* (*getGLString)(int glEnum);
+} EGLClient_eglInterface;
+
+typedef struct {
+ void* (*getProcAddress)(const char *funcName);
+ void (*init)();
+ void (*finish)();
+} EGLClient_glesInterface;
+
+//
+// Any GLES/GLES2 client API library should define a function named "init_emul_gles"
+// with the following prototype,
+// It will be called by EGL after loading the GLES library for initialization
+// and exchanging interface function pointers.
+//
+typedef EGLClient_glesInterface *(*init_emul_gles_t)(EGLClient_eglInterface *eglIface);
+
+#endif
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp b/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp
new file mode 100644
index 000000000..940f5aeab
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp
@@ -0,0 +1,153 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "HostConnection.h"
+#include "TcpStream.h"
+#include "QemuPipeStream.h"
+#include "ThreadInfo.h"
+#include <cutils/log.h>
+#include "GLEncoder.h"
+#include "GL2Encoder.h"
+
+#define STREAM_BUFFER_SIZE 4*1024*1024
+#define STREAM_PORT_NUM 22468
+
+/* Set to 1 to use a QEMU pipe, or 0 for a TCP connection */
+#define USE_QEMU_PIPE 1
+
+HostConnection::HostConnection() :
+ m_stream(NULL),
+ m_glEnc(NULL),
+ m_gl2Enc(NULL),
+ m_rcEnc(NULL)
+{
+}
+
+HostConnection::~HostConnection()
+{
+ delete m_stream;
+ delete m_glEnc;
+ delete m_gl2Enc;
+ delete m_rcEnc;
+}
+
+HostConnection *HostConnection::get()
+{
+ /* TODO: Make this configurable with a system property */
+ const int useQemuPipe = USE_QEMU_PIPE;
+
+ // Get thread info
+ EGLThreadInfo *tinfo = getEGLThreadInfo();
+ if (!tinfo) {
+ return NULL;
+ }
+
+ if (tinfo->hostConn == NULL) {
+ HostConnection *con = new HostConnection();
+ if (NULL == con) {
+ return NULL;
+ }
+
+ if (useQemuPipe) {
+ QemuPipeStream *stream = new QemuPipeStream(STREAM_BUFFER_SIZE);
+ if (!stream) {
+ ALOGE("Failed to create QemuPipeStream for host connection!!!\n");
+ delete con;
+ return NULL;
+ }
+ if (stream->connect() < 0) {
+ ALOGE("Failed to connect to host (QemuPipeStream)!!!\n");
+ delete stream;
+ delete con;
+ return NULL;
+ }
+ con->m_stream = stream;
+ }
+ else /* !useQemuPipe */
+ {
+ TcpStream *stream = new TcpStream(STREAM_BUFFER_SIZE);
+ if (!stream) {
+ ALOGE("Failed to create TcpStream for host connection!!!\n");
+ delete con;
+ return NULL;
+ }
+
+ if (stream->connect("10.0.2.2", STREAM_PORT_NUM) < 0) {
+ ALOGE("Failed to connect to host (TcpStream)!!!\n");
+ delete stream;
+ delete con;
+ return NULL;
+ }
+ con->m_stream = stream;
+ }
+
+ // send zero 'clientFlags' to the host.
+ unsigned int *pClientFlags =
+ (unsigned int *)con->m_stream->allocBuffer(sizeof(unsigned int));
+ *pClientFlags = 0;
+ con->m_stream->commitBuffer(sizeof(unsigned int));
+
+ ALOGD("HostConnection::get() New Host Connection established %p, tid %d\n", con, gettid());
+ tinfo->hostConn = con;
+ }
+
+ return tinfo->hostConn;
+}
+
+GLEncoder *HostConnection::glEncoder()
+{
+ if (!m_glEnc) {
+ m_glEnc = new GLEncoder(m_stream);
+ DBG("HostConnection::glEncoder new encoder %p, tid %d", m_glEnc, gettid());
+ m_glEnc->setContextAccessor(s_getGLContext);
+ }
+ return m_glEnc;
+}
+
+GL2Encoder *HostConnection::gl2Encoder()
+{
+ if (!m_gl2Enc) {
+ m_gl2Enc = new GL2Encoder(m_stream);
+ DBG("HostConnection::gl2Encoder new encoder %p, tid %d", m_gl2Enc, gettid());
+ m_gl2Enc->setContextAccessor(s_getGL2Context);
+ }
+ return m_gl2Enc;
+}
+
+renderControl_encoder_context_t *HostConnection::rcEncoder()
+{
+ if (!m_rcEnc) {
+ m_rcEnc = new renderControl_encoder_context_t(m_stream);
+ }
+ return m_rcEnc;
+}
+
+gl_client_context_t *HostConnection::s_getGLContext()
+{
+ EGLThreadInfo *ti = getEGLThreadInfo();
+ if (ti->hostConn) {
+ return ti->hostConn->m_glEnc;
+ }
+ return NULL;
+}
+
+gl2_client_context_t *HostConnection::s_getGL2Context()
+{
+ EGLThreadInfo *ti = getEGLThreadInfo();
+ if (ti->hostConn) {
+ return ti->hostConn->m_gl2Enc;
+ }
+ return NULL;
+}
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.h b/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.h
new file mode 100644
index 000000000..e7a5ac448
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/HostConnection.h
@@ -0,0 +1,55 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#ifndef __COMMON_HOST_CONNECTION_H
+#define __COMMON_HOST_CONNECTION_H
+
+#include "IOStream.h"
+#include "renderControl_enc.h"
+
+class GLEncoder;
+class gl_client_context_t;
+class GL2Encoder;
+class gl2_client_context_t;
+
+class HostConnection
+{
+public:
+ static HostConnection *get();
+ ~HostConnection();
+
+ GLEncoder *glEncoder();
+ GL2Encoder *gl2Encoder();
+ renderControl_encoder_context_t *rcEncoder();
+
+ void flush() {
+ if (m_stream) {
+ m_stream->flush();
+ }
+ }
+
+private:
+ HostConnection();
+ static gl_client_context_t *s_getGLContext();
+ static gl2_client_context_t *s_getGL2Context();
+
+private:
+ IOStream *m_stream;
+ GLEncoder *m_glEnc;
+ GL2Encoder *m_gl2Enc;
+ renderControl_encoder_context_t *m_rcEnc;
+};
+
+#endif
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp b/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp
new file mode 100644
index 000000000..50c3d8bb1
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp
@@ -0,0 +1,190 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "QemuPipeStream.h"
+#include <hardware/qemu_pipe.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+QemuPipeStream::QemuPipeStream(size_t bufSize) :
+ IOStream(bufSize),
+ m_sock(-1),
+ m_bufsize(bufSize),
+ m_buf(NULL)
+{
+}
+
+QemuPipeStream::QemuPipeStream(int sock, size_t bufSize) :
+ IOStream(bufSize),
+ m_sock(sock),
+ m_bufsize(bufSize),
+ m_buf(NULL)
+{
+}
+
+QemuPipeStream::~QemuPipeStream()
+{
+ if (m_sock >= 0) {
+ ::close(m_sock);
+ }
+ if (m_buf != NULL) {
+ free(m_buf);
+ }
+}
+
+
+int QemuPipeStream::connect(void)
+{
+ m_sock = qemu_pipe_open("opengles");
+ if (!valid()) return -1;
+ return 0;
+}
+
+void *QemuPipeStream::allocBuffer(size_t minSize)
+{
+ size_t allocSize = (m_bufsize < minSize ? minSize : m_bufsize);
+ if (!m_buf) {
+ m_buf = (unsigned char *)malloc(allocSize);
+ }
+ else if (m_bufsize < allocSize) {
+ unsigned char *p = (unsigned char *)realloc(m_buf, allocSize);
+ if (p != NULL) {
+ m_buf = p;
+ m_bufsize = allocSize;
+ } else {
+ ERR("realloc (%d) failed\n", allocSize);
+ free(m_buf);
+ m_buf = NULL;
+ m_bufsize = 0;
+ }
+ }
+
+ return m_buf;
+};
+
+int QemuPipeStream::commitBuffer(size_t size)
+{
+ return writeFully(m_buf, size);
+}
+
+int QemuPipeStream::writeFully(const void *buf, size_t len)
+{
+ //DBG(">> QemuPipeStream::writeFully %d\n", len);
+ if (!valid()) return -1;
+
+ size_t res = len;
+ int retval = 0;
+
+ while (res > 0) {
+ ssize_t stat = ::write(m_sock, (const char *)(buf) + (len - res), res);
+ if (stat > 0) {
+ res -= stat;
+ continue;
+ }
+ if (stat == 0) { /* EOF */
+ ERR("QemuPipeStream::writeFully failed: premature EOF\n");
+ retval = -1;
+ break;
+ }
+ if (errno == EINTR) {
+ continue;
+ }
+ retval = stat;
+ ERR("QemuPipeStream::writeFully failed: %s\n", strerror(errno));
+ break;
+ }
+ //DBG("<< QemuPipeStream::writeFully %d\n", len );
+ return retval;
+}
+
+const unsigned char *QemuPipeStream::readFully(void *buf, size_t len)
+{
+ //DBG(">> QemuPipeStream::readFully %d\n", len);
+ if (!valid()) return NULL;
+ if (!buf) {
+ if (len>0) ERR("QemuPipeStream::readFully failed, buf=NULL, len %d", len);
+ return NULL; // do not allow NULL buf in that implementation
+ }
+ size_t res = len;
+ while (res > 0) {
+ ssize_t stat = ::read(m_sock, (char *)(buf) + len - res, len);
+ if (stat == 0) {
+ // client shutdown;
+ return NULL;
+ } else if (stat < 0) {
+ if (errno == EINTR) {
+ continue;
+ } else {
+ ERR("QemuPipeStream::readFully failed (buf %p): %s\n",
+ buf, strerror(errno));
+ return NULL;
+ }
+ } else {
+ res -= stat;
+ }
+ }
+ //DBG("<< QemuPipeStream::readFully %d\n", len);
+ return (const unsigned char *)buf;
+}
+
+const unsigned char *QemuPipeStream::read( void *buf, size_t *inout_len)
+{
+ //DBG(">> QemuPipeStream::read %d\n", *inout_len);
+ if (!valid()) return NULL;
+ if (!buf) {
+ ERR("QemuPipeStream::read failed, buf=NULL");
+ return NULL; // do not allow NULL buf in that implementation
+ }
+
+ int n = recv(buf, *inout_len);
+
+ if (n > 0) {
+ *inout_len = n;
+ return (const unsigned char *)buf;
+ }
+
+ //DBG("<< QemuPipeStream::read %d\n", *inout_len);
+ return NULL;
+}
+
+int QemuPipeStream::recv(void *buf, size_t len)
+{
+ if (!valid()) return int(ERR_INVALID_SOCKET);
+ char* p = (char *)buf;
+ int ret = 0;
+ while(len > 0) {
+ int res = ::read(m_sock, p, len);
+ if (res > 0) {
+ p += res;
+ ret += res;
+ len -= res;
+ continue;
+ }
+ if (res == 0) { /* EOF */
+ break;
+ }
+ if (errno == EINTR)
+ continue;
+
+ /* A real error */
+ if (ret == 0)
+ ret = -1;
+ break;
+ }
+ return ret;
+}
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.h b/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.h
new file mode 100644
index 000000000..57ee399b4
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/QemuPipeStream.h
@@ -0,0 +1,51 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#ifndef __QEMU_PIPE_STREAM_H
+#define __QEMU_PIPE_STREAM_H
+
+/* This file implements an IOStream that uses a QEMU fast-pipe
+ * to communicate with the emulator's 'opengles' service. See
+ * <hardware/qemu_pipe.h> for more details.
+ */
+#include <stdlib.h>
+#include "IOStream.h"
+
+class QemuPipeStream : public IOStream {
+public:
+ typedef enum { ERR_INVALID_SOCKET = -1000 } QemuPipeStreamError;
+
+ explicit QemuPipeStream(size_t bufsize = 10000);
+ ~QemuPipeStream();
+ int connect(void);
+
+ virtual void *allocBuffer(size_t minSize);
+ virtual int commitBuffer(size_t size);
+ virtual const unsigned char *readFully( void *buf, size_t len);
+ virtual const unsigned char *read( void *buf, size_t *inout_len);
+
+ bool valid() { return m_sock >= 0; }
+ int recv(void *buf, size_t len);
+
+ virtual int writeFully(const void *buf, size_t len);
+
+private:
+ int m_sock;
+ size_t m_bufsize;
+ unsigned char *m_buf;
+ QemuPipeStream(int sock, size_t bufSize);
+};
+
+#endif
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.cpp b/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.cpp
new file mode 100644
index 000000000..75da8f29f
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.cpp
@@ -0,0 +1,39 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "ThreadInfo.h"
+#include "cutils/threads.h"
+
+thread_store_t s_tls = THREAD_STORE_INITIALIZER;
+
+static void tlsDestruct(void *ptr)
+{
+ if (ptr) {
+ EGLThreadInfo *ti = (EGLThreadInfo *)ptr;
+ delete ti->hostConn;
+ delete ti;
+ }
+}
+
+EGLThreadInfo *slow_getEGLThreadInfo()
+{
+ EGLThreadInfo *ti = (EGLThreadInfo *)thread_store_get(&s_tls);
+ if (ti) return ti;
+
+ ti = new EGLThreadInfo();
+ thread_store_set(&s_tls, ti, tlsDestruct);
+
+ return ti;
+}
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h b/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h
new file mode 100644
index 000000000..032873340
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h
@@ -0,0 +1,59 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#ifndef _THREAD_INFO_H
+#define _THREAD_INFO_H
+
+#include "HostConnection.h"
+#include <pthread.h>
+#ifdef HAVE_ANDROID_OS
+#include <bionic_tls.h>
+#endif
+
+struct EGLContext_t;
+
+struct EGLThreadInfo
+{
+ EGLThreadInfo() : currentContext(NULL), hostConn(NULL), eglError(EGL_SUCCESS) {}
+
+ EGLContext_t *currentContext;
+ HostConnection *hostConn;
+ int eglError;
+};
+
+
+EGLThreadInfo *slow_getEGLThreadInfo();
+
+#ifdef HAVE_ANDROID_OS
+ // We have a dedicated TLS slot in bionic
+ inline EGLThreadInfo* getEGLThreadInfo() {
+ EGLThreadInfo *tInfo =
+ (EGLThreadInfo *)(((unsigned *)__get_tls())[TLS_SLOT_OPENGL]);
+ if (!tInfo) {
+ tInfo = slow_getEGLThreadInfo();
+ ((uint32_t *)__get_tls())[TLS_SLOT_OPENGL] = (uint32_t)tInfo;
+ }
+ return tInfo;
+ }
+#else
+ inline EGLThreadInfo* getEGLThreadInfo() {
+ return slow_getEGLThreadInfo();
+ }
+#endif
+
+
+
+
+#endif // of _THREAD_INFO_H
diff --git a/tools/emulator/opengl/system/OpenglSystemCommon/gralloc_cb.h b/tools/emulator/opengl/system/OpenglSystemCommon/gralloc_cb.h
new file mode 100644
index 000000000..e879409cb
--- /dev/null
+++ b/tools/emulator/opengl/system/OpenglSystemCommon/gralloc_cb.h
@@ -0,0 +1,106 @@
+/*
+* Copyright 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef __GRALLOC_CB_H__
+#define __GRALLOC_CB_H__
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+#include <cutils/native_handle.h>
+
+#define BUFFER_HANDLE_MAGIC ((int)0xabfabfab)
+#define CB_HANDLE_NUM_INTS(nfds) (int)((sizeof(cb_handle_t) - (nfds)*sizeof(int)) / sizeof(int))
+
+//
+// Our buffer handle structure
+//
+struct cb_handle_t : public native_handle {
+
+ cb_handle_t(int p_fd, int p_ashmemSize, int p_usage,
+ int p_width, int p_height,
+ int p_glFormat, int p_glType) :
+ fd(p_fd),
+ magic(BUFFER_HANDLE_MAGIC),
+ usage(p_usage),
+ width(p_width),
+ height(p_height),
+ glFormat(p_glFormat),
+ glType(p_glType),
+ ashmemSize(p_ashmemSize),
+ ashmemBase(NULL),
+ ashmemBasePid(0),
+ mappedPid(0),
+ lockedLeft(0),
+ lockedTop(0),
+ lockedWidth(0),
+ lockedHeight(0),
+ hostHandle(0)
+ {
+ version = sizeof(native_handle);
+ numFds = 0;
+ numInts = CB_HANDLE_NUM_INTS(numFds);
+ }
+
+ ~cb_handle_t() {
+ magic = 0;
+ }
+
+ void setFd(int p_fd) {
+ if (p_fd >= 0) {
+ numFds = 1;
+ }
+ else {
+ numFds = 0;
+ }
+ fd = p_fd;
+ numInts = CB_HANDLE_NUM_INTS(numFds);
+ }
+
+ static bool validate(cb_handle_t * hnd) {
+ return (hnd &&
+ hnd->version == sizeof(native_handle) &&
+ hnd->magic == BUFFER_HANDLE_MAGIC &&
+ hnd->numInts == CB_HANDLE_NUM_INTS(hnd->numFds));
+ }
+
+ bool canBePosted() {
+ return (0 != (usage & GRALLOC_USAGE_HW_FB));
+ }
+
+ // file-descriptors
+ int fd; // ashmem fd (-1 of ashmem region did not allocated, i.e. no SW access needed)
+
+ // ints
+ int magic; // magic number in order to validate a pointer to be a cb_handle_t
+ int usage; // usage bits the buffer was created with
+ int width; // buffer width
+ int height; // buffer height
+ int glFormat; // OpenGL format enum used for host h/w color buffer
+ int glType; // OpenGL type enum used when uploading to host
+ int ashmemSize; // ashmem region size for the buffer (0 unless is HW_FB buffer or
+ // s/w access is needed)
+ int ashmemBase; // CPU address of the mapped ashmem region
+ int ashmemBasePid; // process id which mapped the ashmem region
+ int mappedPid; // process id which succeeded gralloc_register call
+ int lockedLeft; // region of buffer locked for s/w write
+ int lockedTop;
+ int lockedWidth;
+ int lockedHeight;
+ uint32_t hostHandle;
+};
+
+
+#endif //__GRALLOC_CB_H__