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* Copyright (C) 2008 The Android Open Source Project
* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
* 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#ifndef GR_H_
#define GR_H_
#include <stdint.h>
#include <limits.h>
#include <sys/cdefs.h>
#include <hardware/gralloc.h>
#include <pthread.h>
#include <errno.h>
#include <cutils/native_handle.h>
#include <utils/Singleton.h>
struct private_module_t;
struct private_handle_t;
inline unsigned int roundUpToPageSize(unsigned int x) {
return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1);
template <class Type>
inline Type ALIGN(Type x, Type align) {
return (x + align-1) & ~(align-1);
#define FALSE 0
#define TRUE 1
int mapFrameBufferLocked(struct private_module_t* module);
int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd);
unsigned int getBufferSizeAndDimensions(int width, int height, int format,
int usage, int& alignedw, int &alignedh);
unsigned int getBufferSizeAndDimensions(int width, int height, int format,
int& alignedw, int &alignedh);
// Attributes include aligned width, aligned height, tileEnabled and size of the buffer
void getBufferAttributes(int width, int height, int format, int usage,
int& alignedw, int &alignedh,
int& tileEnabled, unsigned int &size);
bool isMacroTileEnabled(int format, int usage);
int decideBufferHandlingMechanism(int format, const char *compositionUsed,
int hasBlitEngine, int *needConversion,
int *useBufferDirectly);
// Allocate buffer from width, height, format into a private_handle_t
// It is the responsibility of the caller to free the buffer
int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage);
void free_buffer(private_handle_t *hnd);
int getYUVPlaneInfo(private_handle_t* pHnd, struct android_ycbcr* ycbcr);
class Locker {
pthread_mutex_t mutex;
pthread_cond_t cond;
class Autolock {
Locker& locker;
inline Autolock(Locker& locker) : locker(locker) { locker.lock(); }
inline ~Autolock() { locker.unlock(); }
inline Locker() {
pthread_mutex_init(&mutex, 0);
pthread_cond_init(&cond, 0);
inline ~Locker() {
inline void lock() { pthread_mutex_lock(&mutex); }
inline void wait() { pthread_cond_wait(&cond, &mutex); }
inline void unlock() { pthread_mutex_unlock(&mutex); }
inline void signal() { pthread_cond_signal(&cond); }
class AdrenoMemInfo : public android::Singleton <AdrenoMemInfo>
* Function to compute the adreno aligned width and aligned height
* based on the width and format.
* @return aligned width, aligned height
void getAlignedWidthAndHeight(int width, int height, int format,
int tileEnabled, int& alignedw, int &alignedh);
* Function to return whether GPU support MacroTile feature
* @return >0 : supported
* 0 : not supported
int isMacroTilingSupportedByGPU();
// Pointer to the padding library.
void *libadreno_utils;
// link(s)to adreno surface padding library.
int (*LINK_adreno_compute_padding) (int width, int bpp,
int surface_tile_height,
int screen_tile_height,
int padding_threshold);
void (*LINK_adreno_compute_aligned_width_and_height) (int width,
int height,
int bpp,
int tile_mode,
int raster_mode,
int padding_threshold,
int *aligned_w,
int *aligned_h);
int (*LINK_adreno_isMacroTilingSupportedByGpu) (void);
int width,
int height,
int format,
int tile_mode,
int raster_mode,
int padding_threshold,
int *aligned_w,
int *aligned_h,
int *bpp);
#endif /* GR_H_ */