| /* |
| * 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 <string.h> |
| #include <pthread.h> |
| #ifdef HAVE_ANDROID_OS // just want PAGE_SIZE define |
| # include <asm/page.h> |
| #else |
| # include <sys/user.h> |
| #endif |
| #include <cutils/ashmem.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <dlfcn.h> |
| #include <sys/mman.h> |
| #include "gralloc_cb.h" |
| #include "HostConnection.h" |
| #include "glUtils.h" |
| #include <cutils/log.h> |
| #include <cutils/properties.h> |
| |
| /* Set to 1 or 2 to enable debug traces */ |
| #define DEBUG 0 |
| |
| #if DEBUG >= 1 |
| # define D(...) ALOGD(__VA_ARGS__) |
| #else |
| # define D(...) ((void)0) |
| #endif |
| |
| #if DEBUG >= 2 |
| # define DD(...) ALOGD(__VA_ARGS__) |
| #else |
| # define DD(...) ((void)0) |
| #endif |
| |
| #define DBG_FUNC DBG("%s\n", __FUNCTION__) |
| // |
| // our private gralloc module structure |
| // |
| struct private_module_t { |
| gralloc_module_t base; |
| }; |
| |
| /* If not NULL, this is a pointer to the fallback module. |
| * This really is gralloc.default, which we'll use if we detect |
| * that the emulator we're running in does not support GPU emulation. |
| */ |
| static gralloc_module_t* sFallback; |
| static pthread_once_t sFallbackOnce = PTHREAD_ONCE_INIT; |
| |
| static void fallback_init(void); // forward |
| |
| |
| typedef struct _alloc_list_node { |
| buffer_handle_t handle; |
| _alloc_list_node *next; |
| _alloc_list_node *prev; |
| } AllocListNode; |
| |
| // |
| // Our gralloc device structure (alloc interface) |
| // |
| struct gralloc_device_t { |
| alloc_device_t device; |
| |
| AllocListNode *allocListHead; // double linked list of allocated buffers |
| pthread_mutex_t lock; |
| }; |
| |
| // |
| // Our framebuffer device structure |
| // |
| struct fb_device_t { |
| framebuffer_device_t device; |
| }; |
| |
| static int map_buffer(cb_handle_t *cb, void **vaddr) |
| { |
| if (cb->fd < 0 || cb->ashmemSize <= 0) { |
| return -EINVAL; |
| } |
| |
| void *addr = mmap(0, cb->ashmemSize, PROT_READ | PROT_WRITE, |
| MAP_SHARED, cb->fd, 0); |
| if (addr == MAP_FAILED) { |
| return -errno; |
| } |
| |
| cb->ashmemBase = intptr_t(addr); |
| cb->ashmemBasePid = getpid(); |
| |
| *vaddr = addr; |
| return 0; |
| } |
| |
| #define DEFINE_HOST_CONNECTION \ |
| HostConnection *hostCon = HostConnection::get(); \ |
| renderControl_encoder_context_t *rcEnc = (hostCon ? hostCon->rcEncoder() : NULL) |
| |
| #define DEFINE_AND_VALIDATE_HOST_CONNECTION \ |
| HostConnection *hostCon = HostConnection::get(); \ |
| if (!hostCon) { \ |
| ALOGE("gralloc: Failed to get host connection\n"); \ |
| return -EIO; \ |
| } \ |
| renderControl_encoder_context_t *rcEnc = hostCon->rcEncoder(); \ |
| if (!rcEnc) { \ |
| ALOGE("gralloc: Failed to get renderControl encoder context\n"); \ |
| return -EIO; \ |
| } |
| |
| |
| // |
| // gralloc device functions (alloc interface) |
| // |
| static int gralloc_alloc(alloc_device_t* dev, |
| int w, int h, int format, int usage, |
| buffer_handle_t* pHandle, int* pStride) |
| { |
| D("gralloc_alloc w=%d h=%d usage=0x%x\n", w, h, usage); |
| |
| gralloc_device_t *grdev = (gralloc_device_t *)dev; |
| if (!grdev || !pHandle || !pStride) { |
| ALOGE("gralloc_alloc: Bad inputs (grdev: %p, pHandle: %p, pStride: %p", |
| grdev, pHandle, pStride); |
| return -EINVAL; |
| } |
| |
| // |
| // Validate usage: buffer cannot be written both by s/w and h/w access. |
| // |
| bool sw_write = (0 != (usage & GRALLOC_USAGE_SW_WRITE_MASK)); |
| bool hw_write = (usage & GRALLOC_USAGE_HW_RENDER); |
| if (hw_write && sw_write) { |
| ALOGE("gralloc_alloc: Mismatched usage flags: %d x %d, usage %x", |
| w, h, usage); |
| return -EINVAL; |
| } |
| bool sw_read = (0 != (usage & GRALLOC_USAGE_SW_READ_MASK)); |
| bool hw_cam_write = usage & GRALLOC_USAGE_HW_CAMERA_WRITE; |
| bool hw_cam_read = usage & GRALLOC_USAGE_HW_CAMERA_READ; |
| bool hw_vid_enc_read = usage & GRALLOC_USAGE_HW_VIDEO_ENCODER; |
| |
| // Pick the right concrete pixel format given the endpoints as encoded in |
| // the usage bits. Every end-point pair needs explicit listing here. |
| if (format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) { |
| // Camera as producer |
| if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) { |
| if (usage & GRALLOC_USAGE_HW_TEXTURE) { |
| // Camera-to-display is RGBA |
| format = HAL_PIXEL_FORMAT_RGBA_8888; |
| } else if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER) { |
| // Camera-to-encoder is NV21 |
| format = HAL_PIXEL_FORMAT_YCrCb_420_SP; |
| } else if ((usage & GRALLOC_USAGE_HW_CAMERA_MASK) == |
| GRALLOC_USAGE_HW_CAMERA_ZSL) { |
| // Camera-to-ZSL-queue is RGB_888 |
| format = HAL_PIXEL_FORMAT_RGB_888; |
| } |
| } |
| |
| if (format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) { |
| ALOGE("gralloc_alloc: Requested auto format selection, " |
| "but no known format for this usage: %d x %d, usage %x", |
| w, h, usage); |
| return -EINVAL; |
| } |
| } |
| |
| bool yuv_format = false; |
| |
| int ashmem_size = 0; |
| int stride = w; |
| |
| GLenum glFormat = 0; |
| GLenum glType = 0; |
| |
| int bpp = 0; |
| int align = 1; |
| switch (format) { |
| case HAL_PIXEL_FORMAT_RGBA_8888: |
| case HAL_PIXEL_FORMAT_RGBX_8888: |
| case HAL_PIXEL_FORMAT_BGRA_8888: |
| bpp = 4; |
| glFormat = GL_RGBA; |
| glType = GL_UNSIGNED_BYTE; |
| break; |
| case HAL_PIXEL_FORMAT_RGB_888: |
| bpp = 3; |
| glFormat = GL_RGB; |
| glType = GL_UNSIGNED_BYTE; |
| break; |
| case HAL_PIXEL_FORMAT_RGB_565: |
| bpp = 2; |
| glFormat = GL_RGB; |
| glType = GL_UNSIGNED_SHORT_5_6_5; |
| break; |
| case HAL_PIXEL_FORMAT_RGBA_5551: |
| bpp = 2; |
| glFormat = GL_RGB5_A1_OES; |
| glType = GL_UNSIGNED_SHORT_5_5_5_1; |
| break; |
| case HAL_PIXEL_FORMAT_RGBA_4444: |
| bpp = 2; |
| glFormat = GL_RGBA4_OES; |
| glType = GL_UNSIGNED_SHORT_4_4_4_4; |
| break; |
| case HAL_PIXEL_FORMAT_RAW_SENSOR: |
| bpp = 2; |
| align = 16*bpp; |
| if (! ((sw_read || hw_cam_read) && (sw_write || hw_cam_write) ) ) { |
| // Raw sensor data only goes between camera and CPU |
| return -EINVAL; |
| } |
| // Not expecting to actually create any GL surfaces for this |
| glFormat = GL_LUMINANCE; |
| glType = GL_UNSIGNED_SHORT; |
| break; |
| case HAL_PIXEL_FORMAT_BLOB: |
| bpp = 1; |
| if (! (sw_read && hw_cam_write) ) { |
| // Blob data cannot be used by HW other than camera emulator |
| return -EINVAL; |
| } |
| // Not expecting to actually create any GL surfaces for this |
| glFormat = GL_LUMINANCE; |
| glType = GL_UNSIGNED_BYTE; |
| break; |
| case HAL_PIXEL_FORMAT_YCrCb_420_SP: |
| align = 1; |
| bpp = 1; // per-channel bpp |
| yuv_format = true; |
| // Not expecting to actually create any GL surfaces for this |
| break; |
| case HAL_PIXEL_FORMAT_YV12: |
| align = 16; |
| bpp = 1; // per-channel bpp |
| yuv_format = true; |
| // Not expecting to actually create any GL surfaces for this |
| break; |
| default: |
| ALOGE("gralloc_alloc: Unknown format %d", format); |
| return -EINVAL; |
| } |
| |
| if (usage & GRALLOC_USAGE_HW_FB) { |
| // keep space for postCounter |
| ashmem_size += sizeof(uint32_t); |
| } |
| |
| if (sw_read || sw_write || hw_cam_write || hw_vid_enc_read) { |
| // keep space for image on guest memory if SW access is needed |
| // or if the camera is doing writing |
| if (yuv_format) { |
| size_t yStride = (w*bpp + (align - 1)) & ~(align-1); |
| size_t uvStride = (yStride / 2 + (align - 1)) & ~(align-1); |
| size_t uvHeight = h / 2; |
| ashmem_size += yStride * h + 2 * (uvHeight * uvStride); |
| stride = yStride / bpp; |
| } else { |
| size_t bpr = (w*bpp + (align-1)) & ~(align-1); |
| ashmem_size += (bpr * h); |
| stride = bpr / bpp; |
| } |
| } |
| |
| D("gralloc_alloc format=%d, ashmem_size=%d, stride=%d, tid %d\n", format, |
| ashmem_size, stride, gettid()); |
| |
| // |
| // Allocate space in ashmem if needed |
| // |
| int fd = -1; |
| if (ashmem_size > 0) { |
| // round to page size; |
| ashmem_size = (ashmem_size + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1); |
| |
| fd = ashmem_create_region("gralloc-buffer", ashmem_size); |
| if (fd < 0) { |
| ALOGE("gralloc_alloc failed to create ashmem region: %s\n", |
| strerror(errno)); |
| return -errno; |
| } |
| } |
| |
| cb_handle_t *cb = new cb_handle_t(fd, ashmem_size, usage, |
| w, h, format, glFormat, glType); |
| |
| if (ashmem_size > 0) { |
| // |
| // map ashmem region if exist |
| // |
| void *vaddr; |
| int err = map_buffer(cb, &vaddr); |
| if (err) { |
| close(fd); |
| delete cb; |
| return err; |
| } |
| |
| cb->setFd(fd); |
| } |
| |
| // |
| // Allocate ColorBuffer handle on the host (only if h/w access is allowed) |
| // Only do this for some h/w usages, not all. |
| // |
| if (usage & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER | |
| GRALLOC_USAGE_HW_2D | GRALLOC_USAGE_HW_COMPOSER | |
| GRALLOC_USAGE_HW_FB) ) { |
| DEFINE_HOST_CONNECTION; |
| if (hostCon && rcEnc) { |
| cb->hostHandle = rcEnc->rcCreateColorBuffer(rcEnc, w, h, glFormat); |
| D("Created host ColorBuffer 0x%x\n", cb->hostHandle); |
| } |
| |
| if (!cb->hostHandle) { |
| // Could not create colorbuffer on host !!! |
| close(fd); |
| delete cb; |
| return -EIO; |
| } |
| } |
| |
| // |
| // alloc succeeded - insert the allocated handle to the allocated list |
| // |
| AllocListNode *node = new AllocListNode(); |
| pthread_mutex_lock(&grdev->lock); |
| node->handle = cb; |
| node->next = grdev->allocListHead; |
| node->prev = NULL; |
| if (grdev->allocListHead) { |
| grdev->allocListHead->prev = node; |
| } |
| grdev->allocListHead = node; |
| pthread_mutex_unlock(&grdev->lock); |
| |
| *pHandle = cb; |
| *pStride = stride; |
| return 0; |
| } |
| |
| static int gralloc_free(alloc_device_t* dev, |
| buffer_handle_t handle) |
| { |
| const cb_handle_t *cb = (const cb_handle_t *)handle; |
| if (!cb_handle_t::validate((cb_handle_t*)cb)) { |
| ERR("gralloc_free: invalid handle"); |
| return -EINVAL; |
| } |
| |
| if (cb->hostHandle != 0) { |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| D("Closing host ColorBuffer 0x%x\n", cb->hostHandle); |
| rcEnc->rcCloseColorBuffer(rcEnc, cb->hostHandle); |
| } |
| |
| // |
| // detach and unmap ashmem area if present |
| // |
| if (cb->fd > 0) { |
| if (cb->ashmemSize > 0 && cb->ashmemBase) { |
| munmap((void *)cb->ashmemBase, cb->ashmemSize); |
| } |
| close(cb->fd); |
| } |
| |
| // remove it from the allocated list |
| gralloc_device_t *grdev = (gralloc_device_t *)dev; |
| pthread_mutex_lock(&grdev->lock); |
| AllocListNode *n = grdev->allocListHead; |
| while( n && n->handle != cb ) { |
| n = n->next; |
| } |
| if (n) { |
| // buffer found on list - remove it from list |
| if (n->next) { |
| n->next->prev = n->prev; |
| } |
| if (n->prev) { |
| n->prev->next = n->next; |
| } |
| else { |
| grdev->allocListHead = n->next; |
| } |
| |
| delete n; |
| } |
| pthread_mutex_unlock(&grdev->lock); |
| |
| delete cb; |
| |
| return 0; |
| } |
| |
| static int gralloc_device_close(struct hw_device_t *dev) |
| { |
| gralloc_device_t* d = reinterpret_cast<gralloc_device_t*>(dev); |
| if (d) { |
| |
| // free still allocated buffers |
| while( d->allocListHead != NULL ) { |
| gralloc_free(&d->device, d->allocListHead->handle); |
| } |
| |
| // free device |
| free(d); |
| } |
| return 0; |
| } |
| |
| static int fb_compositionComplete(struct framebuffer_device_t* dev) |
| { |
| return 0; |
| } |
| |
| // |
| // Framebuffer device functions |
| // |
| static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer) |
| { |
| fb_device_t *fbdev = (fb_device_t *)dev; |
| cb_handle_t *cb = (cb_handle_t *)buffer; |
| |
| if (!fbdev || !cb_handle_t::validate(cb) || !cb->canBePosted()) { |
| return -EINVAL; |
| } |
| |
| // Make sure we have host connection |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| // increment the post count of the buffer |
| uint32_t *postCountPtr = (uint32_t *)cb->ashmemBase; |
| if (!postCountPtr) { |
| // This should not happen |
| return -EINVAL; |
| } |
| (*postCountPtr)++; |
| |
| // send post request to host |
| rcEnc->rcFBPost(rcEnc, cb->hostHandle); |
| hostCon->flush(); |
| |
| return 0; |
| } |
| |
| static int fb_setUpdateRect(struct framebuffer_device_t* dev, |
| int l, int t, int w, int h) |
| { |
| fb_device_t *fbdev = (fb_device_t *)dev; |
| |
| if (!fbdev) { |
| return -EINVAL; |
| } |
| |
| // Make sure we have host connection |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| // send request to host |
| // TODO: XXX - should be implemented |
| //rcEnc->rc_XXX |
| |
| return 0; |
| } |
| |
| static int fb_setSwapInterval(struct framebuffer_device_t* dev, |
| int interval) |
| { |
| fb_device_t *fbdev = (fb_device_t *)dev; |
| |
| if (!fbdev) { |
| return -EINVAL; |
| } |
| |
| // Make sure we have host connection |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| // send request to host |
| rcEnc->rcFBSetSwapInterval(rcEnc, interval); |
| hostCon->flush(); |
| |
| return 0; |
| } |
| |
| static int fb_close(struct hw_device_t *dev) |
| { |
| fb_device_t *fbdev = (fb_device_t *)dev; |
| |
| delete fbdev; |
| |
| return 0; |
| } |
| |
| |
| // |
| // gralloc module functions - refcount + locking interface |
| // |
| static int gralloc_register_buffer(gralloc_module_t const* module, |
| buffer_handle_t handle) |
| { |
| pthread_once(&sFallbackOnce, fallback_init); |
| if (sFallback != NULL) { |
| return sFallback->registerBuffer(sFallback, handle); |
| } |
| |
| D("gralloc_register_buffer(%p) called", handle); |
| |
| private_module_t *gr = (private_module_t *)module; |
| cb_handle_t *cb = (cb_handle_t *)handle; |
| if (!gr || !cb_handle_t::validate(cb)) { |
| ERR("gralloc_register_buffer(%p): invalid buffer", cb); |
| return -EINVAL; |
| } |
| |
| if (cb->hostHandle != 0) { |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| D("Opening host ColorBuffer 0x%x\n", cb->hostHandle); |
| rcEnc->rcOpenColorBuffer(rcEnc, cb->hostHandle); |
| } |
| |
| // |
| // if the color buffer has ashmem region and it is not mapped in this |
| // process map it now. |
| // |
| if (cb->ashmemSize > 0 && cb->mappedPid != getpid()) { |
| void *vaddr; |
| int err = map_buffer(cb, &vaddr); |
| if (err) { |
| ERR("gralloc_register_buffer(%p): map failed: %s", cb, strerror(-err)); |
| return -err; |
| } |
| cb->mappedPid = getpid(); |
| } |
| |
| return 0; |
| } |
| |
| static int gralloc_unregister_buffer(gralloc_module_t const* module, |
| buffer_handle_t handle) |
| { |
| if (sFallback != NULL) { |
| return sFallback->unregisterBuffer(sFallback, handle); |
| } |
| |
| private_module_t *gr = (private_module_t *)module; |
| cb_handle_t *cb = (cb_handle_t *)handle; |
| if (!gr || !cb_handle_t::validate(cb)) { |
| ERR("gralloc_unregister_buffer(%p): invalid buffer", cb); |
| return -EINVAL; |
| } |
| |
| if (cb->hostHandle != 0) { |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| D("Closing host ColorBuffer 0x%x\n", cb->hostHandle); |
| rcEnc->rcCloseColorBuffer(rcEnc, cb->hostHandle); |
| } |
| |
| // |
| // unmap ashmem region if it was previously mapped in this process |
| // (through register_buffer) |
| // |
| if (cb->ashmemSize > 0 && cb->mappedPid == getpid()) { |
| void *vaddr; |
| int err = munmap((void *)cb->ashmemBase, cb->ashmemSize); |
| if (err) { |
| ERR("gralloc_unregister_buffer(%p): unmap failed", cb); |
| return -EINVAL; |
| } |
| cb->ashmemBase = NULL; |
| cb->mappedPid = 0; |
| } |
| |
| D("gralloc_unregister_buffer(%p) done\n", cb); |
| |
| return 0; |
| } |
| |
| static int gralloc_lock(gralloc_module_t const* module, |
| buffer_handle_t handle, int usage, |
| int l, int t, int w, int h, |
| void** vaddr) |
| { |
| if (sFallback != NULL) { |
| return sFallback->lock(sFallback, handle, usage, l, t, w, h, vaddr); |
| } |
| |
| private_module_t *gr = (private_module_t *)module; |
| cb_handle_t *cb = (cb_handle_t *)handle; |
| if (!gr || !cb_handle_t::validate(cb)) { |
| ALOGE("gralloc_lock bad handle\n"); |
| return -EINVAL; |
| } |
| |
| // Validate usage, |
| // 1. cannot be locked for hw access |
| // 2. lock for either sw read or write. |
| // 3. locked sw access must match usage during alloc time. |
| bool sw_read = (0 != (usage & GRALLOC_USAGE_SW_READ_MASK)); |
| bool sw_write = (0 != (usage & GRALLOC_USAGE_SW_WRITE_MASK)); |
| bool hw_read = (usage & GRALLOC_USAGE_HW_TEXTURE); |
| bool hw_write = (usage & GRALLOC_USAGE_HW_RENDER); |
| bool hw_vid_enc_read = (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER); |
| bool hw_cam_write = (usage & GRALLOC_USAGE_HW_CAMERA_WRITE); |
| bool hw_cam_read = (usage & GRALLOC_USAGE_HW_CAMERA_READ); |
| bool sw_read_allowed = (0 != (cb->usage & GRALLOC_USAGE_SW_READ_MASK)); |
| bool sw_write_allowed = (0 != (cb->usage & GRALLOC_USAGE_SW_WRITE_MASK)); |
| |
| if ( (hw_read || hw_write) || |
| (!sw_read && !sw_write && |
| !hw_cam_write && !hw_cam_read && |
| !hw_vid_enc_read) || |
| (sw_read && !sw_read_allowed) || |
| (sw_write && !sw_write_allowed) ) { |
| ALOGE("gralloc_lock usage mismatch usage=0x%x cb->usage=0x%x\n", usage, |
| cb->usage); |
| return -EINVAL; |
| } |
| |
| EGLint postCount = 0; |
| void *cpu_addr = NULL; |
| |
| // |
| // make sure ashmem area is mapped if needed |
| // |
| if (cb->canBePosted() || sw_read || sw_write || |
| hw_cam_write || hw_cam_read || |
| hw_vid_enc_read) { |
| if (cb->ashmemBasePid != getpid() || !cb->ashmemBase) { |
| return -EACCES; |
| } |
| |
| if (cb->canBePosted()) { |
| postCount = *((int *)cb->ashmemBase); |
| cpu_addr = (void *)(cb->ashmemBase + sizeof(int)); |
| } |
| else { |
| cpu_addr = (void *)(cb->ashmemBase); |
| } |
| } |
| |
| if (cb->hostHandle) { |
| // Make sure we have host connection |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| // |
| // flush color buffer write cache on host and get its sync status. |
| // |
| int hostSyncStatus = rcEnc->rcColorBufferCacheFlush(rcEnc, cb->hostHandle, |
| postCount, |
| sw_read); |
| if (hostSyncStatus < 0) { |
| // host failed the color buffer sync - probably since it was already |
| // locked for write access. fail the lock. |
| ALOGE("gralloc_lock cacheFlush failed postCount=%d sw_read=%d\n", |
| postCount, sw_read); |
| return -EBUSY; |
| } |
| |
| } |
| |
| // |
| // is virtual address required ? |
| // |
| if (sw_read || sw_write || hw_cam_write || hw_cam_read || hw_vid_enc_read) { |
| *vaddr = cpu_addr; |
| } |
| |
| if (sw_write || hw_cam_write) { |
| // |
| // Keep locked region if locked for s/w write access. |
| // |
| cb->lockedLeft = l; |
| cb->lockedTop = t; |
| cb->lockedWidth = w; |
| cb->lockedHeight = h; |
| } |
| |
| DD("gralloc_lock success. vaddr: %p, *vaddr: %p, usage: %x, cpu_addr: %p", |
| vaddr, vaddr ? *vaddr : 0, usage, cpu_addr); |
| |
| return 0; |
| } |
| |
| static int gralloc_unlock(gralloc_module_t const* module, |
| buffer_handle_t handle) |
| { |
| if (sFallback != NULL) { |
| return sFallback->unlock(sFallback, handle); |
| } |
| |
| private_module_t *gr = (private_module_t *)module; |
| cb_handle_t *cb = (cb_handle_t *)handle; |
| if (!gr || !cb_handle_t::validate(cb)) { |
| return -EINVAL; |
| } |
| |
| // |
| // if buffer was locked for s/w write, we need to update the host with |
| // the updated data |
| // |
| if (cb->lockedWidth > 0 && cb->lockedHeight > 0 && cb->hostHandle) { |
| |
| // Make sure we have host connection |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| void *cpu_addr; |
| if (cb->canBePosted()) { |
| cpu_addr = (void *)(cb->ashmemBase + sizeof(int)); |
| } |
| else { |
| cpu_addr = (void *)(cb->ashmemBase); |
| } |
| |
| if (cb->lockedWidth < cb->width || cb->lockedHeight < cb->height) { |
| int bpp = glUtilsPixelBitSize(cb->glFormat, cb->glType) >> 3; |
| char *tmpBuf = new char[cb->lockedWidth * cb->lockedHeight * bpp]; |
| |
| int dst_line_len = cb->lockedWidth * bpp; |
| int src_line_len = cb->width * bpp; |
| char *src = (char *)cpu_addr + cb->lockedTop*src_line_len + cb->lockedLeft*bpp; |
| char *dst = tmpBuf; |
| for (int y=0; y<cb->lockedHeight; y++) { |
| memcpy(dst, src, dst_line_len); |
| src += src_line_len; |
| dst += dst_line_len; |
| } |
| |
| rcEnc->rcUpdateColorBuffer(rcEnc, cb->hostHandle, |
| cb->lockedLeft, cb->lockedTop, |
| cb->lockedWidth, cb->lockedHeight, |
| cb->glFormat, cb->glType, |
| tmpBuf); |
| |
| delete [] tmpBuf; |
| } |
| else { |
| rcEnc->rcUpdateColorBuffer(rcEnc, cb->hostHandle, 0, 0, |
| cb->width, cb->height, |
| cb->glFormat, cb->glType, |
| cpu_addr); |
| } |
| } |
| |
| cb->lockedWidth = cb->lockedHeight = 0; |
| return 0; |
| } |
| |
| |
| static int gralloc_device_open(const hw_module_t* module, |
| const char* name, |
| hw_device_t** device) |
| { |
| int status = -EINVAL; |
| |
| D("gralloc_device_open %s\n", name); |
| |
| pthread_once( &sFallbackOnce, fallback_init ); |
| if (sFallback != NULL) { |
| return sFallback->common.methods->open(&sFallback->common, name, device); |
| } |
| |
| if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) { |
| |
| // Create host connection and keep it in the TLS. |
| // return error if connection with host can not be established |
| HostConnection *hostCon = HostConnection::get(); |
| if (!hostCon) { |
| ALOGE("gralloc: failed to get host connection while opening %s\n", name); |
| return -EIO; |
| } |
| |
| // |
| // Allocate memory for the gralloc device (alloc interface) |
| // |
| gralloc_device_t *dev; |
| dev = (gralloc_device_t*)malloc(sizeof(gralloc_device_t)); |
| if (NULL == dev) { |
| return -ENOMEM; |
| } |
| |
| // Initialize our device structure |
| // |
| 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_device_close; |
| |
| dev->device.alloc = gralloc_alloc; |
| dev->device.free = gralloc_free; |
| dev->allocListHead = NULL; |
| pthread_mutex_init(&dev->lock, NULL); |
| |
| *device = &dev->device.common; |
| status = 0; |
| } |
| else if (!strcmp(name, GRALLOC_HARDWARE_FB0)) { |
| |
| // return error if connection with host can not be established |
| DEFINE_AND_VALIDATE_HOST_CONNECTION; |
| |
| // |
| // Query the host for Framebuffer attributes |
| // |
| D("gralloc: query Frabuffer attribs\n"); |
| EGLint width = rcEnc->rcGetFBParam(rcEnc, FB_WIDTH); |
| D("gralloc: width=%d\n", width); |
| EGLint height = rcEnc->rcGetFBParam(rcEnc, FB_HEIGHT); |
| D("gralloc: height=%d\n", height); |
| EGLint xdpi = rcEnc->rcGetFBParam(rcEnc, FB_XDPI); |
| D("gralloc: xdpi=%d\n", xdpi); |
| EGLint ydpi = rcEnc->rcGetFBParam(rcEnc, FB_YDPI); |
| D("gralloc: ydpi=%d\n", ydpi); |
| EGLint fps = rcEnc->rcGetFBParam(rcEnc, FB_FPS); |
| D("gralloc: fps=%d\n", fps); |
| EGLint min_si = rcEnc->rcGetFBParam(rcEnc, FB_MIN_SWAP_INTERVAL); |
| D("gralloc: min_swap=%d\n", min_si); |
| EGLint max_si = rcEnc->rcGetFBParam(rcEnc, FB_MAX_SWAP_INTERVAL); |
| D("gralloc: max_swap=%d\n", max_si); |
| |
| // |
| // Allocate memory for the framebuffer device |
| // |
| fb_device_t *dev; |
| dev = (fb_device_t*)malloc(sizeof(fb_device_t)); |
| if (NULL == dev) { |
| return -ENOMEM; |
| } |
| memset(dev, 0, sizeof(fb_device_t)); |
| |
| // Initialize our device structure |
| // |
| 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; //fb_setUpdateRect; |
| dev->device.compositionComplete = fb_compositionComplete; //XXX: this is a dummy |
| |
| const_cast<uint32_t&>(dev->device.flags) = 0; |
| const_cast<uint32_t&>(dev->device.width) = width; |
| const_cast<uint32_t&>(dev->device.height) = height; |
| const_cast<int&>(dev->device.stride) = width; |
| const_cast<int&>(dev->device.format) = HAL_PIXEL_FORMAT_RGBA_8888; |
| const_cast<float&>(dev->device.xdpi) = xdpi; |
| const_cast<float&>(dev->device.ydpi) = ydpi; |
| const_cast<float&>(dev->device.fps) = fps; |
| const_cast<int&>(dev->device.minSwapInterval) = min_si; |
| const_cast<int&>(dev->device.maxSwapInterval) = max_si; |
| *device = &dev->device.common; |
| |
| status = 0; |
| } |
| |
| return status; |
| } |
| |
| // |
| // define the HMI symbol - our module interface |
| // |
| 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, |
| dso: NULL, |
| reserved: {0, } |
| }, |
| registerBuffer: gralloc_register_buffer, |
| unregisterBuffer: gralloc_unregister_buffer, |
| lock: gralloc_lock, |
| unlock: gralloc_unlock, |
| perform: NULL, |
| reserved_proc : {NULL, } |
| } |
| }; |
| |
| /* This function is called once to detect whether the emulator supports |
| * GPU emulation (this is done by looking at the qemu.gles kernel |
| * parameter, which must be > 0 if this is the case). |
| * |
| * If not, then load gralloc.default instead as a fallback. |
| */ |
| static void |
| fallback_init(void) |
| { |
| char prop[PROPERTY_VALUE_MAX]; |
| void* module; |
| |
| property_get("ro.kernel.qemu.gles", prop, "0"); |
| if (atoi(prop) > 0) { |
| return; |
| } |
| ALOGD("Emulator without GPU emulation detected."); |
| module = dlopen("/system/lib/hw/gralloc.default.so", RTLD_LAZY|RTLD_LOCAL); |
| if (module != NULL) { |
| sFallback = reinterpret_cast<gralloc_module_t*>(dlsym(module, HAL_MODULE_INFO_SYM_AS_STR)); |
| if (sFallback == NULL) { |
| dlclose(module); |
| } |
| } |
| if (sFallback == NULL) { |
| ALOGE("Could not find software fallback module!?"); |
| } |
| } |
