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Diffstat (limited to 'libgralloc/gralloc_priv.h')
-rw-r--r-- | libgralloc/gralloc_priv.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h new file mode 100644 index 0000000..75bcd1d --- /dev/null +++ b/libgralloc/gralloc_priv.h @@ -0,0 +1,112 @@ +/* + * 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_ */ |