--- /dev/null
+/*
+* 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>
+#include <limits.h>
+#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;
+ }
+
+ //
+ // Note: in screen capture mode, both sw_write and hw_write will be on
+ // and this is a valid usage
+ //
+ bool sw_write = (0 != (usage & GRALLOC_USAGE_SW_WRITE_MASK));
+ bool hw_write = (usage & GRALLOC_USAGE_HW_RENDER);
+ 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;
+
+ // Keep around original requested format for later validation
+ int frameworkFormat = format;
+ // 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;
+ }
+ } else if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
+ // Flexible framework-accessible YUV format; map to NV21 for now
+ if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
+ format = HAL_PIXEL_FORMAT_YCrCb_420_SP;
+ }
+ if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
+ ALOGE("gralloc_alloc: Requested YCbCr_420_888, but no known "
+ "specific format for this usage: %d x %d, usage %x",
+ w, h, usage);
+ }
+ }
+ 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_RAW16:
+ case HAL_PIXEL_FORMAT_Y16:
+ bpp = 2;
+ align = 16*bpp;
+ if (! ((sw_read || hw_cam_read) && (sw_write || hw_cam_write) ) ) {
+ // Raw sensor data or Y16 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, frameworkFormat, 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.
+ // Also do this if we need to read from the surface, in this case the
+ // rendering will still happen on the host but we also need to be able to
+ // read back from the color buffer, which requires that there is a buffer
+ //
+ if (usage & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER |
+ GRALLOC_USAGE_HW_2D | GRALLOC_USAGE_HW_COMPOSER |
+ GRALLOC_USAGE_HW_FB | GRALLOC_USAGE_SW_READ_MASK) ) {
+ 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;
+ if (frameworkFormat == HAL_PIXEL_FORMAT_YCbCr_420_888) {
+ *pStride = 0;
+ } else {
+ *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)
+{
+ (void)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
+ intptr_t *postCountPtr = (intptr_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;
+
+ (void)l;
+ (void)t;
+ (void)w;
+ (void)h;
+
+ 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->rcOpenColorBuffer2(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 = 0;
+ 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 format
+ if (cb->frameworkFormat == HAL_PIXEL_FORMAT_YCbCr_420_888) {
+ ALOGE("gralloc_lock can't be used with YCbCr_420_888 format");
+ 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;
+ }
+
+ intptr_t 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 = *((intptr_t *)cb->ashmemBase);
+ cpu_addr = (void *)(cb->ashmemBase + sizeof(intptr_t));
+ }
+ 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;
+ }
+
+ if (sw_read) {
+ D("gralloc_lock read back color buffer %d %d\n", cb->width, cb->height);
+ rcEnc->rcReadColorBuffer(rcEnc, cb->hostHandle,
+ 0, 0, cb->width, cb->height, cb->glFormat, cb->glType, cpu_addr);
+ }
+ }
+
+ //
+ // 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->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_lock_ycbcr(gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ android_ycbcr *ycbcr)
+{
+ // Not supporting fallback module for YCbCr
+ if (sFallback != NULL) {
+ return -EINVAL;
+ }
+
+ if (!ycbcr) {
+ ALOGE("gralloc_lock_ycbcr got NULL ycbcr struct");
+ return -EINVAL;
+ }
+
+ 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_ycbcr bad handle\n");
+ return -EINVAL;
+ }
+
+ if (cb->frameworkFormat != HAL_PIXEL_FORMAT_YCbCr_420_888) {
+ ALOGE("gralloc_lock_ycbcr can only be used with "
+ "HAL_PIXEL_FORMAT_YCbCr_420_888, got %x instead",
+ cb->frameworkFormat);
+ return -EINVAL;
+ }
+
+ // Validate usage
+ // For now, only allow camera write, software read.
+ bool sw_read = (0 != (usage & GRALLOC_USAGE_SW_READ_MASK));
+ bool hw_cam_write = (usage & GRALLOC_USAGE_HW_CAMERA_WRITE);
+ bool sw_read_allowed = (0 != (cb->usage & GRALLOC_USAGE_SW_READ_MASK));
+
+ if ( (!hw_cam_write && !sw_read) ||
+ (sw_read && !sw_read_allowed) ) {
+ ALOGE("gralloc_lock_ycbcr usage mismatch usage:0x%x cb->usage:0x%x\n",
+ usage, cb->usage);
+ return -EINVAL;
+ }
+
+ // Make sure memory is mapped, get address
+ if (cb->ashmemBasePid != getpid() || !cb->ashmemBase) {
+ return -EACCES;
+ }
+
+ uint8_t *cpu_addr = NULL;
+
+ if (cb->canBePosted()) {
+ cpu_addr = (uint8_t *)(cb->ashmemBase + sizeof(int));
+ }
+ else {
+ cpu_addr = (uint8_t *)(cb->ashmemBase);
+ }
+
+ // Calculate offsets to underlying YUV data
+ size_t yStride;
+ size_t cStride;
+ size_t yOffset;
+ size_t uOffset;
+ size_t vOffset;
+ size_t cStep;
+ switch (cb->format) {
+ case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+ yStride = cb->width;
+ cStride = cb->width;
+ yOffset = 0;
+ vOffset = yStride * cb->height;
+ uOffset = vOffset + 1;
+ cStep = 2;
+ break;
+ default:
+ ALOGE("gralloc_lock_ycbcr unexpected internal format %x",
+ cb->format);
+ return -EINVAL;
+ }
+
+ ycbcr->y = cpu_addr + yOffset;
+ ycbcr->cb = cpu_addr + uOffset;
+ ycbcr->cr = cpu_addr + vOffset;
+ ycbcr->ystride = yStride;
+ ycbcr->cstride = cStride;
+ ycbcr->chroma_step = cStep;
+
+ // Zero out reserved fields
+ memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
+
+ //
+ // 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_ycbcr success. usage: %x, ycbcr.y: %p, .cb: %p, .cr: %p, "
+ ".ystride: %d , .cstride: %d, .chroma_step: %d", usage,
+ ycbcr->y, ycbcr->cb, ycbcr->cr, ycbcr->ystride, ycbcr->cstride,
+ ycbcr->chroma_step);
+
+ 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,
+ module_api_version: GRALLOC_MODULE_API_VERSION_0_2,
+ hal_api_version: 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,
+ lock_ycbcr: gralloc_lock_ycbcr,
+ }
+};
+
+/* 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 == 1 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;
+
+ // qemu.gles=0 -> no GLES 2.x support (only 1.x through software).
+ // qemu.gles=1 -> host-side GPU emulation through EmuGL
+ // qemu.gles=2 -> guest-side GPU emulation.
+ property_get("ro.kernel.qemu.gles", prop, "0");
+ if (atoi(prop) == 1) {
+ return;
+ }
+ ALOGD("Emulator without host-side GPU emulation detected.");
+#if __LP64__
+ module = dlopen("/system/lib64/hw/gralloc.default.so", RTLD_LAZY|RTLD_LOCAL);
+#else
+ module = dlopen("/system/lib/hw/gralloc.default.so", RTLD_LAZY|RTLD_LOCAL);
+#endif
+ 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!?");
+ }
+}
Code Review / iec.git / blobdiff