+++ /dev/null
-# Copyright (C) 2010 The Android-x86 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.
-
-ifeq ($(BOARD_USES_I915),true)
-LOCAL_PATH := $(call my-dir)
-
-# HAL module implemenation, not prelinked and stored in
-# hw/<OVERLAY_HARDWARE_MODULE_ID>.<ro.product.board>.so
-include $(CLEAR_VARS)
-LOCAL_PRELINK_MODULE := false
-LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
-LOCAL_SHARED_LIBRARIES := liblog libcutils
-
-LOCAL_SRC_FILES := \
- gralloc.cpp \
- framebuffer.cpp \
- mapper.cpp
-
-LOCAL_MODULE := gralloc.$(TARGET_PRODUCT)
-LOCAL_CFLAGS:= -DLOG_TAG=\"gralloc\"
-include $(BUILD_SHARED_LIBRARY)
-endif
+++ /dev/null
-/*
- * 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.
- */
-
-#include <sys/mman.h>
-
-#include <dlfcn.h>
-
-#include <cutils/ashmem.h>
-#include <cutils/log.h>
-
-#include <hardware/hardware.h>
-#include <hardware/gralloc.h>
-
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include <cutils/log.h>
-#include <cutils/atomic.h>
-
-#if HAVE_ANDROID_OS
-#include <linux/fb.h>
-#endif
-
-#include "gralloc_priv.h"
-#include "gr.h"
-
-/*****************************************************************************/
-
-enum {
- PAGE_FLIP = 0x00000001,
- LOCKED = 0x00000002
-};
-
-struct fb_context_t {
- framebuffer_device_t device;
-};
-
-/*****************************************************************************/
-
-static int fb_setSwapInterval(struct framebuffer_device_t* dev,
- int interval)
-{
- fb_context_t* ctx = (fb_context_t*)dev;
- if (interval < dev->minSwapInterval || interval > dev->maxSwapInterval)
- return -EINVAL;
- // FIXME: implement fb_setSwapInterval
- return 0;
-}
-
-static int fb_setUpdateRect(struct framebuffer_device_t* dev,
- int l, int t, int w, int h)
-{
- if (((w|h) <= 0) || ((l|t)<0))
- return -EINVAL;
-
- fb_context_t* ctx = (fb_context_t*)dev;
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- m->info.reserved[0] = 0x54445055; // "UPDT";
- m->info.reserved[1] = (uint16_t)l | ((uint32_t)t << 16);
- m->info.reserved[2] = (uint16_t)(l+w) | ((uint32_t)(t+h) << 16);
- return 0;
-}
-
-static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
-{
- if (private_handle_t::validate(buffer) < 0)
- return -EINVAL;
-
- fb_context_t* ctx = (fb_context_t*)dev;
-
- private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(buffer);
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
-
- if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
- const size_t offset = hnd->base - m->framebuffer->base;
- m->info.activate = FB_ACTIVATE_VBL;
- m->info.yoffset = offset / m->finfo.line_length;
- if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
- LOGE("FBIOPUT_VSCREENINFO failed");
- m->base.unlock(&m->base, buffer);
- return -errno;
- }
- m->currentBuffer = buffer;
-
- } else {
- // If we can't do the page_flip, just copy the buffer to the front
- // FIXME: use copybit HAL instead of memcpy
-
- void* fb_vaddr;
- void* buffer_vaddr;
-
- m->base.lock(&m->base, m->framebuffer,
- GRALLOC_USAGE_SW_WRITE_RARELY,
- 0, 0, m->info.xres, m->info.yres,
- &fb_vaddr);
-
- m->base.lock(&m->base, buffer,
- GRALLOC_USAGE_SW_READ_RARELY,
- 0, 0, m->info.xres, m->info.yres,
- &buffer_vaddr);
-
- memcpy(fb_vaddr, buffer_vaddr, m->finfo.line_length * m->info.yres);
-
- m->base.unlock(&m->base, buffer);
- m->base.unlock(&m->base, m->framebuffer);
- }
-
- return 0;
-}
-
-/*****************************************************************************/
-
-int mapFrameBufferLocked(struct private_module_t* module)
-{
- // already initialized...
- if (module->framebuffer) {
- return 0;
- }
-
- char const * const device_template[] = {
- "/dev/graphics/fb%u",
- "/dev/fb%u",
- 0 };
-
- int fd = -1;
- int i=0;
- char name[64];
-
- while ((fd==-1) && device_template[i]) {
- snprintf(name, 64, device_template[i], 0);
- fd = open(name, O_RDWR, 0);
- i++;
- }
- if (fd < 0)
- return -errno;
-
- struct fb_fix_screeninfo finfo;
- if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
- return -errno;
-
- struct fb_var_screeninfo info;
- if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
- return -errno;
-
- info.reserved[0] = 0;
- info.reserved[1] = 0;
- info.reserved[2] = 0;
- info.xoffset = 0;
- info.yoffset = 0;
- info.activate = FB_ACTIVATE_NOW;
-
- if (info.bits_per_pixel == 32) {
- info.red.offset = 24;
- info.red.length = 8;
- info.green.offset = 16;
- info.green.length = 8;
- info.blue.offset = 8;
- info.blue.length = 8;
- info.transp.offset = 0;
- info.transp.length = 0;
- } else if (info.bits_per_pixel == 16) {
- info.red.offset = 11;
- info.red.length = 5;
- info.green.offset = 5;
- info.green.length = 6;
- info.blue.offset = 0;
- info.blue.length = 5;
- info.transp.offset = 0;
- info.transp.length = 0;
- } else {
- LOGE("Unsupported bpp: %d", info.bits_per_pixel);
- return -1;
- }
-
- info.yres_virtual = info.yres;
- uint32_t flags = 0;
-
- if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
- LOGW("FBIOPUT_VSCREENINFO failed: %s", strerror(errno));
- }
-
- if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
- return -errno;
-
- // The original AOSP calculates refreshRate by pixclock.
- // However, the i915 driver has pixclock = 0 ?
- int refreshRate = 60 * 1000; // 60 Hz
-
- if (int(info.width) <= 0 || int(info.height) <= 0) {
- // the driver doesn't return that information
- // default to 160 dpi
- info.width = ((info.xres * 25.4f)/160.0f + 0.5f);
- info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
- }
-
- float xdpi = (info.xres * 25.4f) / info.width;
- float ydpi = (info.yres * 25.4f) / info.height;
- float fps = refreshRate / 1000.0f;
-
- LOGI( "using (fd=%d)\n"
- "id = %s\n"
- "xres = %d px\n"
- "yres = %d px\n"
- "xres_virtual = %d px\n"
- "yres_virtual = %d px\n"
- "bpp = %d\n"
- "r = %2u:%u\n"
- "g = %2u:%u\n"
- "b = %2u:%u\n",
- fd,
- finfo.id,
- info.xres,
- info.yres,
- info.xres_virtual,
- info.yres_virtual,
- info.bits_per_pixel,
- info.red.offset, info.red.length,
- info.green.offset, info.green.length,
- info.blue.offset, info.blue.length
- );
-
- LOGI( "width = %d mm (%f dpi)\n"
- "height = %d mm (%f dpi)\n"
- "refresh rate = %.2f Hz\n",
- info.width, xdpi,
- info.height, ydpi,
- fps
- );
-
-
- if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
- return -errno;
-
- if (finfo.smem_len <= 0)
- return -errno;
-
-
- module->flags = flags;
- module->info = info;
- module->finfo = finfo;
- module->xdpi = xdpi;
- module->ydpi = ydpi;
- module->fps = fps;
-
- /*
- * map the framebuffer
- */
-
- int err;
- size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres_virtual);
- module->framebuffer = new private_handle_t(dup(fd), fbSize, 0);
-
- module->numBuffers = info.yres_virtual / info.yres;
- module->bufferMask = 0;
-
- void* vaddr = mmap(0, fbSize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
- if (vaddr == MAP_FAILED) {
- LOGE("Error mapping the framebuffer (%s)", strerror(errno));
- return -errno;
- }
- module->framebuffer->base = intptr_t(vaddr);
- memset(vaddr, 0, fbSize);
- return 0;
-}
-
-static int mapFrameBuffer(struct private_module_t* module)
-{
- pthread_mutex_lock(&module->lock);
- int err = mapFrameBufferLocked(module);
- pthread_mutex_unlock(&module->lock);
- return err;
-}
-
-/*****************************************************************************/
-
-static int fb_close(struct hw_device_t *dev)
-{
- fb_context_t* ctx = (fb_context_t*)dev;
- if (ctx) {
- free(ctx);
- }
- return 0;
-}
-
-int fb_device_open(hw_module_t const* module, const char* name,
- hw_device_t** device)
-{
- int status = -EINVAL;
- if (!strcmp(name, GRALLOC_HARDWARE_FB0)) {
- alloc_device_t* gralloc_device;
- status = gralloc_open(module, &gralloc_device);
- if (status < 0)
- return status;
-
- /* initialize our state here */
- fb_context_t *dev = (fb_context_t*)malloc(sizeof(*dev));
- memset(dev, 0, sizeof(*dev));
-
- /* initialize the procs */
- dev->device.common.tag = HARDWARE_DEVICE_TAG;
- dev->device.common.version = 0;
- dev->device.common.module = const_cast<hw_module_t*>(module);
- dev->device.common.close = fb_close;
- dev->device.setSwapInterval = fb_setSwapInterval;
- dev->device.post = fb_post;
- dev->device.setUpdateRect = 0;
-
- private_module_t* m = (private_module_t*)module;
- status = mapFrameBuffer(m);
- if (status >= 0) {
- int stride = m->finfo.line_length / (m->info.bits_per_pixel >> 3);
- const_cast<uint32_t&>(dev->device.flags) = 0;
- const_cast<uint32_t&>(dev->device.width) = m->info.xres;
- const_cast<uint32_t&>(dev->device.height) = m->info.yres;
- const_cast<int&>(dev->device.stride) = stride;
- const_cast<int&>(dev->device.format) = (m->info.bits_per_pixel == 32) ?
- HAL_PIXEL_FORMAT_BGRA_8888 : HAL_PIXEL_FORMAT_RGB_565;
- const_cast<float&>(dev->device.xdpi) = m->xdpi;
- const_cast<float&>(dev->device.ydpi) = m->ydpi;
- const_cast<float&>(dev->device.fps) = m->fps;
- const_cast<int&>(dev->device.minSwapInterval) = 1;
- const_cast<int&>(dev->device.maxSwapInterval) = 1;
- *device = &dev->device.common;
- }
- }
- return status;
-}
+++ /dev/null
-/*
- * 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 GR_H_
-#define GR_H_
-
-#include <stdint.h>
-#ifdef HAVE_ANDROID_OS // just want PAGE_SIZE define
-# include <asm/page.h>
-#else
-# include <sys/user.h>
-#endif
-#include <limits.h>
-#include <sys/cdefs.h>
-#include <hardware/gralloc.h>
-#include <pthread.h>
-#include <errno.h>
-
-#include <cutils/native_handle.h>
-
-/*****************************************************************************/
-
-struct private_module_t;
-struct private_handle_t;
-
-inline size_t roundUpToPageSize(size_t x) {
- return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1);
-}
-
-int mapFrameBufferLocked(struct private_module_t* module);
-int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd);
-int mapBuffer(gralloc_module_t const* module, private_handle_t* hnd);
-
-/*****************************************************************************/
-
-class Locker {
- pthread_mutex_t mutex;
-public:
- class Autolock {
- Locker& locker;
- public:
- inline Autolock(Locker& locker) : locker(locker) { locker.lock(); }
- inline ~Autolock() { locker.unlock(); }
- };
- inline Locker() { pthread_mutex_init(&mutex, 0); }
- inline ~Locker() { pthread_mutex_destroy(&mutex); }
- inline void lock() { pthread_mutex_lock(&mutex); }
- inline void unlock() { pthread_mutex_unlock(&mutex); }
-};
-
-#endif /* GR_H_ */
+++ /dev/null
-/*
- * 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.
- */
-
-#include <limits.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-
-#include <cutils/ashmem.h>
-#include <cutils/log.h>
-#include <cutils/atomic.h>
-
-#include <hardware/hardware.h>
-#include <hardware/gralloc.h>
-
-#include "gralloc_priv.h"
-#include "gr.h"
-
-/*****************************************************************************/
-
-struct gralloc_context_t {
- alloc_device_t device;
- /* our private data here */
-};
-
-static int gralloc_alloc_buffer(alloc_device_t* dev,
- size_t size, int usage, buffer_handle_t* pHandle);
-
-/*****************************************************************************/
-
-int fb_device_open(const hw_module_t* module, const char* name,
- hw_device_t** device);
-
-static int gralloc_device_open(const hw_module_t* module, const char* name,
- hw_device_t** device);
-
-extern int gralloc_lock(gralloc_module_t const* module,
- buffer_handle_t handle, int usage,
- int l, int t, int w, int h,
- void** vaddr);
-
-extern int gralloc_unlock(gralloc_module_t const* module,
- buffer_handle_t handle);
-
-extern int gralloc_register_buffer(gralloc_module_t const* module,
- buffer_handle_t handle);
-
-extern int gralloc_unregister_buffer(gralloc_module_t const* module,
- buffer_handle_t handle);
-
-/*****************************************************************************/
-
-static struct hw_module_methods_t gralloc_module_methods = {
- open: gralloc_device_open
-};
-
-struct private_module_t HAL_MODULE_INFO_SYM = {
- base: {
- common: {
- tag: HARDWARE_MODULE_TAG,
- version_major: 1,
- version_minor: 0,
- id: GRALLOC_HARDWARE_MODULE_ID,
- name: "Graphics Memory Allocator Module",
- author: "The Android Open Source Project",
- methods: &gralloc_module_methods
- },
- registerBuffer: gralloc_register_buffer,
- unregisterBuffer: gralloc_unregister_buffer,
- lock: gralloc_lock,
- unlock: gralloc_unlock,
- },
- framebuffer: 0,
- flags: 0,
- numBuffers: 0,
- bufferMask: 0,
- lock: PTHREAD_MUTEX_INITIALIZER,
- currentBuffer: 0,
-};
-
-/*****************************************************************************/
-
-static int gralloc_alloc_framebuffer_locked(alloc_device_t* dev,
- size_t size, int usage, buffer_handle_t* pHandle)
-{
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
-
- // allocate the framebuffer
- if (m->framebuffer == NULL) {
- // initialize the framebuffer, the framebuffer is mapped once
- // and forever.
- int err = mapFrameBufferLocked(m);
- if (err < 0) {
- return err;
- }
- }
-
- const uint32_t bufferMask = m->bufferMask;
- const uint32_t numBuffers = m->numBuffers;
- const size_t bufferSize = m->finfo.line_length * m->info.yres;
- if (numBuffers == 1) {
- // If we have only one buffer, we never use page-flipping. Instead,
- // we return a regular buffer which will be memcpy'ed to the main
- // screen when post is called.
- int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D;
- return gralloc_alloc_buffer(dev, bufferSize, newUsage, pHandle);
- }
-
- if (bufferMask >= ((1LU<<numBuffers)-1)) {
- // We ran out of buffers.
- return -ENOMEM;
- }
-
- // create a "fake" handles for it
- intptr_t vaddr = intptr_t(m->framebuffer->base);
- private_handle_t* hnd = new private_handle_t(dup(m->framebuffer->fd), size,
- private_handle_t::PRIV_FLAGS_FRAMEBUFFER);
-
- // find a free slot
- for (uint32_t i=0 ; i<numBuffers ; i++) {
- if ((bufferMask & (1LU<<i)) == 0) {
- m->bufferMask |= (1LU<<i);
- break;
- }
- vaddr += bufferSize;
- }
-
- hnd->base = vaddr;
- hnd->offset = vaddr - intptr_t(m->framebuffer->base);
- *pHandle = hnd;
-
- return 0;
-}
-
-static int gralloc_alloc_framebuffer(alloc_device_t* dev,
- size_t size, int usage, buffer_handle_t* pHandle)
-{
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- pthread_mutex_lock(&m->lock);
- int err = gralloc_alloc_framebuffer_locked(dev, size, usage, pHandle);
- pthread_mutex_unlock(&m->lock);
- return err;
-}
-
-static int gralloc_alloc_buffer(alloc_device_t* dev,
- size_t size, int usage, buffer_handle_t* pHandle)
-{
- int err = 0;
- int fd = -1;
-
- size = roundUpToPageSize(size);
-
- fd = ashmem_create_region("gralloc-buffer", size);
- if (fd < 0) {
- LOGE("couldn't create ashmem (%s)", strerror(-errno));
- err = -errno;
- }
-
- if (err == 0) {
- private_handle_t* hnd = new private_handle_t(fd, size, 0);
- gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>(
- dev->common.module);
- err = mapBuffer(module, hnd);
- if (err == 0) {
- *pHandle = hnd;
- }
- }
-
- LOGE_IF(err, "gralloc failed err=%s", strerror(-err));
-
- return err;
-}
-
-/*****************************************************************************/
-
-static int gralloc_alloc(alloc_device_t* dev,
- int w, int h, int format, int usage,
- buffer_handle_t* pHandle, int* pStride)
-{
- if (!pHandle || !pStride)
- return -EINVAL;
-
- size_t size, stride;
-
- int align = 4;
- int bpp = 0;
- switch (format) {
- case HAL_PIXEL_FORMAT_RGBA_8888:
- case HAL_PIXEL_FORMAT_RGBX_8888:
- case HAL_PIXEL_FORMAT_BGRA_8888:
- bpp = 4;
- break;
- case HAL_PIXEL_FORMAT_RGB_888:
- bpp = 3;
- break;
- case HAL_PIXEL_FORMAT_RGB_565:
- case HAL_PIXEL_FORMAT_RGBA_5551:
- case HAL_PIXEL_FORMAT_RGBA_4444:
- bpp = 2;
- break;
- default:
- return -EINVAL;
- }
- size_t bpr = (w*bpp + (align-1)) & ~(align-1);
- size = bpr * h;
- stride = bpr / bpp;
-
- int err;
- if (usage & GRALLOC_USAGE_HW_FB) {
- err = gralloc_alloc_framebuffer(dev, size, usage, pHandle);
- } else {
- err = gralloc_alloc_buffer(dev, size, usage, pHandle);
- }
-
- if (err < 0) {
- return err;
- }
-
- *pStride = stride;
- return 0;
-}
-
-static int gralloc_free(alloc_device_t* dev,
- buffer_handle_t handle)
-{
- if (private_handle_t::validate(handle) < 0)
- return -EINVAL;
-
- private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
- if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
- // free this buffer
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- const size_t bufferSize = m->finfo.line_length * m->info.yres;
- int index = (hnd->base - m->framebuffer->base) / bufferSize;
- m->bufferMask &= ~(1<<index);
- } else {
- gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>(
- dev->common.module);
- terminateBuffer(module, const_cast<private_handle_t*>(hnd));
- }
-
- close(hnd->fd);
- delete hnd;
- return 0;
-}
-
-/*****************************************************************************/
-
-static int gralloc_close(struct hw_device_t *dev)
-{
- gralloc_context_t* ctx = reinterpret_cast<gralloc_context_t*>(dev);
- if (ctx) {
- /* TODO: keep a list of all buffer_handle_t created, and free them
- * all here.
- */
- free(ctx);
- }
- return 0;
-}
-
-int gralloc_device_open(const hw_module_t* module, const char* name,
- hw_device_t** device)
-{
- int status = -EINVAL;
- if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
- gralloc_context_t *dev;
- dev = (gralloc_context_t*)malloc(sizeof(*dev));
-
- /* initialize our state here */
- memset(dev, 0, sizeof(*dev));
-
- /* initialize the procs */
- dev->device.common.tag = HARDWARE_DEVICE_TAG;
- dev->device.common.version = 0;
- dev->device.common.module = const_cast<hw_module_t*>(module);
- dev->device.common.close = gralloc_close;
-
- dev->device.alloc = gralloc_alloc;
- dev->device.free = gralloc_free;
-
- *device = &dev->device.common;
- status = 0;
- } else {
- status = fb_device_open(module, name, device);
- }
- return status;
-}
+++ /dev/null
-/*
- * 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_ */
+++ /dev/null
-/*
- * 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.
- */
-
-#include <limits.h>
-#include <errno.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <cutils/log.h>
-#include <cutils/atomic.h>
-
-#include <hardware/hardware.h>
-#include <hardware/gralloc.h>
-
-#include "gralloc_priv.h"
-
-
-/* desktop Linux needs a little help with gettid() */
-#if defined(ARCH_X86) && !defined(HAVE_ANDROID_OS)
-#define __KERNEL__
-# include <linux/unistd.h>
-pid_t gettid() { return syscall(__NR_gettid);}
-#undef __KERNEL__
-#endif
-
-/*****************************************************************************/
-
-static int gralloc_map(gralloc_module_t const* module,
- buffer_handle_t handle,
- void** vaddr)
-{
- private_handle_t* hnd = (private_handle_t*)handle;
- if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
- size_t size = hnd->size;
- void* mappedAddress = mmap(0, size,
- PROT_READ|PROT_WRITE, MAP_SHARED, hnd->fd, 0);
- if (mappedAddress == MAP_FAILED) {
- LOGE("Could not mmap %s", strerror(errno));
- return -errno;
- }
- hnd->base = intptr_t(mappedAddress) + hnd->offset;
- //LOGD("gralloc_map() succeeded fd=%d, off=%d, size=%d, vaddr=%p",
- // hnd->fd, hnd->offset, hnd->size, mappedAddress);
- }
- *vaddr = (void*)hnd->base;
- return 0;
-}
-
-static int gralloc_unmap(gralloc_module_t const* module,
- buffer_handle_t handle)
-{
- private_handle_t* hnd = (private_handle_t*)handle;
- if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
- void* base = (void*)hnd->base;
- size_t size = hnd->size;
- //LOGD("unmapping from %p, size=%d", base, size);
- if (munmap(base, size) < 0) {
- LOGE("Could not unmap %s", strerror(errno));
- }
- }
- hnd->base = 0;
- return 0;
-}
-
-/*****************************************************************************/
-
-static pthread_mutex_t sMapLock = PTHREAD_MUTEX_INITIALIZER;
-
-/*****************************************************************************/
-
-int gralloc_register_buffer(gralloc_module_t const* module,
- buffer_handle_t handle)
-{
- if (private_handle_t::validate(handle) < 0)
- return -EINVAL;
-
- // if this handle was created in this process, then we keep it as is.
- int err = 0;
- private_handle_t* hnd = (private_handle_t*)handle;
- if (hnd->pid != getpid()) {
- void *vaddr;
- err = gralloc_map(module, handle, &vaddr);
- }
- return err;
-}
-
-int gralloc_unregister_buffer(gralloc_module_t const* module,
- buffer_handle_t handle)
-{
- if (private_handle_t::validate(handle) < 0)
- return -EINVAL;
-
- // never unmap buffers that were created in this process
- private_handle_t* hnd = (private_handle_t*)handle;
- if (hnd->pid != getpid()) {
- if (hnd->base) {
- gralloc_unmap(module, handle);
- }
- }
- return 0;
-}
-
-int mapBuffer(gralloc_module_t const* module,
- private_handle_t* hnd)
-{
- void* vaddr;
- return gralloc_map(module, hnd, &vaddr);
-}
-
-int terminateBuffer(gralloc_module_t const* module,
- private_handle_t* hnd)
-{
- if (hnd->base) {
- // this buffer was mapped, unmap it now
- gralloc_unmap(module, hnd);
- }
-
- return 0;
-}
-
-int gralloc_lock(gralloc_module_t const* module,
- buffer_handle_t handle, int usage,
- int l, int t, int w, int h,
- void** vaddr)
-{
- // this is called when a buffer is being locked for software
- // access. in thin implementation we have nothing to do since
- // not synchronization with the h/w is needed.
- // typically this is used to wait for the h/w to finish with
- // this buffer if relevant. the data cache may need to be
- // flushed or invalidated depending on the usage bits and the
- // hardware.
-
- if (private_handle_t::validate(handle) < 0)
- return -EINVAL;
-
- private_handle_t* hnd = (private_handle_t*)handle;
- *vaddr = (void*)hnd->base;
- return 0;
-}
-
-int gralloc_unlock(gralloc_module_t const* module,
- buffer_handle_t handle)
-{
- // we're done with a software buffer. nothing to do in this
- // implementation. typically this is used to flush the data cache.
-
- if (private_handle_t::validate(handle) < 0)
- return -EINVAL;
- return 0;
-}
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