diff options
Diffstat (limited to 'libs/ui/GraphicBufferMapper.cpp')
-rw-r--r-- | libs/ui/GraphicBufferMapper.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libs/ui/GraphicBufferMapper.cpp b/libs/ui/GraphicBufferMapper.cpp new file mode 100644 index 0000000..dd529e6 --- /dev/null +++ b/libs/ui/GraphicBufferMapper.cpp @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2007 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. + */ + +#define LOG_TAG "GraphicBufferMapper" + +#include <stdint.h> +#include <errno.h> + +#include <utils/Errors.h> +#include <utils/Log.h> + +#include <ui/GraphicBufferMapper.h> +#include <ui/Rect.h> + +#include <hardware/gralloc.h> + + +namespace android { +// --------------------------------------------------------------------------- + +ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper ) + +GraphicBufferMapper::GraphicBufferMapper() + : mAllocMod(0) +{ + hw_module_t const* module; + int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); + LOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID); + if (err == 0) { + mAllocMod = (gralloc_module_t const *)module; + } +} + +status_t GraphicBufferMapper::registerBuffer(buffer_handle_t handle) +{ + status_t err = mAllocMod->registerBuffer(mAllocMod, handle); + LOGW_IF(err, "registerBuffer(%p) failed %d (%s)", + handle, err, strerror(-err)); + return err; +} + +status_t GraphicBufferMapper::unregisterBuffer(buffer_handle_t handle) +{ + status_t err = mAllocMod->unregisterBuffer(mAllocMod, handle); + LOGW_IF(err, "unregisterBuffer(%p) failed %d (%s)", + handle, err, strerror(-err)); + return err; +} + +status_t GraphicBufferMapper::lock(buffer_handle_t handle, + int usage, const Rect& bounds, void** vaddr) +{ + status_t err = mAllocMod->lock(mAllocMod, handle, usage, + bounds.left, bounds.top, bounds.width(), bounds.height(), vaddr); + LOGW_IF(err, "lock(...) failed %d (%s)", err, strerror(-err)); + return err; +} + +status_t GraphicBufferMapper::unlock(buffer_handle_t handle) +{ + status_t err = mAllocMod->unlock(mAllocMod, handle); + LOGW_IF(err, "unlock(...) failed %d (%s)", err, strerror(-err)); + return err; +} + +// --------------------------------------------------------------------------- +}; // namespace android |