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-rw-r--r--libgralloc/gralloc_priv.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
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+++ b/libgralloc/gralloc_priv.h
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+/*
+ * Copyright (C) 2008 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_PRIV_H_
+#define GRALLOC_PRIV_H_
+
+#include <stdint.h>
+#include <limits.h>
+#include <sys/cdefs.h>
+#include <hardware/gralloc.h>
+#include <pthread.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <cutils/native_handle.h>
+
+#include <linux/fb.h>
+
+/*****************************************************************************/
+
+struct private_module_t;
+struct private_handle_t;
+
+struct private_module_t {
+ gralloc_module_t base;
+
+ private_handle_t* framebuffer;
+ uint32_t flags;
+ uint32_t numBuffers;
+ uint32_t bufferMask;
+ pthread_mutex_t lock;
+ buffer_handle_t currentBuffer;
+ int pmem_master;
+ void* pmem_master_base;
+
+ struct fb_var_screeninfo info;
+ struct fb_fix_screeninfo finfo;
+ float xdpi;
+ float ydpi;
+ float fps;
+};
+
+/*****************************************************************************/
+
+#ifdef __cplusplus
+struct private_handle_t : public native_handle {
+#else
+struct private_handle_t {
+ struct native_handle nativeHandle;
+#endif
+
+ enum {
+ PRIV_FLAGS_FRAMEBUFFER = 0x00000001
+ };
+
+ // file-descriptors
+ int fd;
+ // ints
+ int magic;
+ int flags;
+ int size;
+ int offset;
+
+ // FIXME: the attributes below should be out-of-line
+ int base;
+ int pid;
+
+#ifdef __cplusplus
+ static const int sNumInts = 6;
+ static const int sNumFds = 1;
+ static const int sMagic = 0x3141592;
+
+ private_handle_t(int fd, int size, int flags) :
+ fd(fd), magic(sMagic), flags(flags), size(size), offset(0),
+ base(0), pid(getpid())
+ {
+ version = sizeof(native_handle);
+ numInts = sNumInts;
+ numFds = sNumFds;
+ }
+ ~private_handle_t() {
+ magic = 0;
+ }
+
+ static int validate(const native_handle* h) {
+ const private_handle_t* hnd = (const private_handle_t*)h;
+ if (!h || h->version != sizeof(native_handle) ||
+ h->numInts != sNumInts || h->numFds != sNumFds ||
+ hnd->magic != sMagic)
+ {
+ LOGE("invalid gralloc handle (at %p)", h);
+ return -EINVAL;
+ }
+ return 0;
+ }
+#endif
+};
+
+#endif /* GRALLOC_PRIV_H_ */