diff options
Diffstat (limited to 'camera')
| -rw-r--r-- | camera/Android.mk | 15 | ||||
| -rw-r--r-- | camera/CameraWrapper.cpp | 612 |
2 files changed, 627 insertions, 0 deletions
diff --git a/camera/Android.mk b/camera/Android.mk new file mode 100644 index 0000000..a0652a6 --- /dev/null +++ b/camera/Android.mk @@ -0,0 +1,15 @@ +LOCAL_PATH := $(call my-dir) +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := \ + CameraWrapper.cpp + +LOCAL_SHARED_LIBRARIES := \ + libhardware liblog libcamera_client libutils + +LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw +LOCAL_MODULE := camera.exynos4 +LOCAL_MODULE_TAGS := optional + +include $(BUILD_SHARED_LIBRARY) +#include $(BUILD_HEAPTRACKED_SHARED_LIBRARY) diff --git a/camera/CameraWrapper.cpp b/camera/CameraWrapper.cpp new file mode 100644 index 0000000..2c1b49c --- /dev/null +++ b/camera/CameraWrapper.cpp @@ -0,0 +1,612 @@ +/* + * Copyright (C) 2012-2013, The CyanogenMod 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. + */ + +/** +* @file CameraWrapper.cpp +* +* This file wraps a vendor camera module. +* +*/ + +//#define LOG_NDEBUG 0 +//#define LOG_PARAMETERS + +#define LOG_TAG "CameraWrapper" +#include <cutils/log.h> + +#include <utils/threads.h> +#include <utils/String8.h> +#include <hardware/hardware.h> +#include <hardware/camera.h> +#include <camera/Camera.h> +#include <camera/CameraParameters.h> + +static android::Mutex gCameraWrapperLock; +static camera_module_t *gVendorModule = 0; + +static int camera_device_open(const hw_module_t* module, const char *name, + hw_device_t **device); +static int camera_device_close(hw_device_t* device); +static int camera_get_number_of_cameras(void); +static int camera_get_camera_info(int camera_id, struct camera_info *info); + +static struct hw_module_methods_t camera_module_methods = { + open: camera_device_open +}; + +camera_module_t HAL_MODULE_INFO_SYM = { + common: { + tag: HARDWARE_MODULE_TAG, + version_major: 1, + version_minor: 0, + id: CAMERA_HARDWARE_MODULE_ID, + name: "m0xx Camera Wrapper", + author: "The CyanogenMod Project", + methods: &camera_module_methods, + dso: NULL, /* remove compilation warnings */ + reserved: {0}, /* remove compilation warnings */ + }, + get_number_of_cameras: camera_get_number_of_cameras, + get_camera_info: camera_get_camera_info, + set_callbacks: NULL, +}; + +typedef struct wrapper_camera_device { + camera_device_t base; + int id; + camera_device_t *vendor; +} wrapper_camera_device_t; + +#define VENDOR_CALL(device, func, ...) ({ \ + wrapper_camera_device_t *__wrapper_dev = (wrapper_camera_device_t*) device; \ + __wrapper_dev->vendor->ops->func(__wrapper_dev->vendor, ##__VA_ARGS__); \ +}) + +#define CAMERA_ID(device) (((wrapper_camera_device_t *)(device))->id) + +static int check_vendor_module() +{ + int rv = 0; + ALOGV("%s", __FUNCTION__); + + if (gVendorModule) + return 0; + + rv = hw_get_module_by_class("camera", "vendor", (const hw_module_t **)&gVendorModule); + if (rv) + ALOGE("failed to open vendor camera module"); + return rv; +} + +static char * camera_fixup_getparams(int id, const char * settings) +{ + bool videoMode = false; + char *manipBuf; + + android::CameraParameters params; + params.unflatten(android::String8(settings)); + + ALOGV("%s: original parameters:", __func__); + //params.dump(); + + if (params.get(android::CameraParameters::KEY_RECORDING_HINT)) { + videoMode = (!strcmp(params.get(android::CameraParameters::KEY_RECORDING_HINT), "true")); + } + +#if 0 // this is busted atm + /* Set supported scene modes */ + if (!videoMode) { + manipBuf = strdup(params.get(android::CameraParameters::KEY_SUPPORTED_SCENE_MODES)); + if (manipBuf != NULL && strstr(manipBuf,"hdr") == NULL) { + strncat(manipBuf,",hdr",4); + params.set(android::CameraParameters::KEY_SUPPORTED_SCENE_MODES, + manipBuf); + } + free(manipBuf); + } + + if (params.get("hdr-mode") && !strncmp(params.get("hdr-mode"),"1",1)) { + params.set(android::CameraParameters::KEY_SCENE_MODE, "hdr"); + } +#endif + + /* We do support it, so announce it */ + params.set(android::CameraParameters::KEY_VIDEO_SNAPSHOT_SUPPORTED, "true"); + + ALOGV("%s: fixed parameters:", __func__); + //params.dump(); + + android::String8 strParams = params.flatten(); + char *ret = strdup(strParams.string()); + + return ret; +} + +char * camera_fixup_setparams(int id, const char * settings) +{ + int previewW, previewH; + bool videoMode = false; + const char *sceneMode = "auto"; + + android::CameraParameters params; + params.unflatten(android::String8(settings)); + + ALOGV("%s: original parameters:", __func__); + //params.dump(); + + if (params.get(android::CameraParameters::KEY_RECORDING_HINT)) { + videoMode = (!strcmp(params.get(android::CameraParameters::KEY_RECORDING_HINT), "true")); + } + +#if 0 // this is busted atm + if (!videoMode && !strncmp(params.get(android::CameraParameters::KEY_SCENE_MODE),"hdr",3)) { + params.set("hdr-mode", "1"); + params.set(android::CameraParameters::KEY_SCENE_MODE, "auto"); + } else { + params.set("hdr-mode", "0"); + } +#endif + + params.dump(); + + android::String8 strParams = params.flatten(); + char *ret = strdup(strParams.string()); + + ALOGD("%s: fixed parameters:", __func__); + return ret; +} + +/******************************************************************* + * implementation of camera_device_ops functions + *******************************************************************/ + +int camera_set_preview_window(struct camera_device * device, + struct preview_stream_ops *window) +{ + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, set_preview_window, window); +} + +void camera_set_callbacks(struct camera_device * device, + camera_notify_callback notify_cb, + camera_data_callback data_cb, + camera_data_timestamp_callback data_cb_timestamp, + camera_request_memory get_memory, + void *user) +{ + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + ALOGV("%s", __FUNCTION__); + + if (!device) + return; + + VENDOR_CALL(device, set_callbacks, notify_cb, data_cb, data_cb_timestamp, get_memory, user); +} + +void camera_enable_msg_type(struct camera_device * device, int32_t msg_type) +{ + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + ALOGV("%s", __FUNCTION__); + + if (!device) + return; + + VENDOR_CALL(device, enable_msg_type, msg_type); +} + +void camera_disable_msg_type(struct camera_device * device, int32_t msg_type) +{ + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + ALOGV("%s", __FUNCTION__); + + if (!device) + return; + + VENDOR_CALL(device, disable_msg_type, msg_type); +} + +int camera_msg_type_enabled(struct camera_device * device, int32_t msg_type) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return 0; + + return VENDOR_CALL(device, msg_type_enabled, msg_type); +} + +int camera_start_preview(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, start_preview); +} + +void camera_stop_preview(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return; + + VENDOR_CALL(device, stop_preview); +} + +int camera_preview_enabled(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, preview_enabled); +} + +int camera_store_meta_data_in_buffers(struct camera_device * device, int enable) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, store_meta_data_in_buffers, enable); +} + +int camera_start_recording(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return EINVAL; + + return VENDOR_CALL(device, start_recording); +} + +void camera_stop_recording(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return; + + + VENDOR_CALL(device, stop_recording); + + /* Restart preview after stop recording to flush buffers and not crash */ + VENDOR_CALL(device, stop_preview); + VENDOR_CALL(device, start_preview); +} + +int camera_recording_enabled(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, recording_enabled); +} + +void camera_release_recording_frame(struct camera_device * device, + const void *opaque) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return; + + VENDOR_CALL(device, release_recording_frame, opaque); +} + +int camera_auto_focus(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + + return VENDOR_CALL(device, auto_focus); +} + +int camera_cancel_auto_focus(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, cancel_auto_focus); +} + +int camera_take_picture(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, take_picture); +} + +int camera_cancel_picture(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, cancel_picture); +} + +int camera_set_parameters(struct camera_device * device, const char *params) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + char *tmp = NULL; + tmp = camera_fixup_setparams(CAMERA_ID(device), params); + +#ifdef LOG_PARAMETERS + __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, tmp); +#endif + + int ret = VENDOR_CALL(device, set_parameters, tmp); + return ret; +} + +char* camera_get_parameters(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return NULL; + + char *params = VENDOR_CALL(device, get_parameters); + +#ifdef LOG_PARAMETERS + __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, params); +#endif + + char *tmp = camera_fixup_getparams(CAMERA_ID(device), params); + VENDOR_CALL(device, put_parameters, params); + params = tmp; + +#ifdef LOG_PARAMETERS + __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, params); +#endif + + return params; +} + +static void camera_put_parameters(struct camera_device *device, char *params) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (params) + free(params); +} + +int camera_send_command(struct camera_device * device, + int32_t cmd, int32_t arg1, int32_t arg2) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, send_command, cmd, arg1, arg2); +} + +void camera_release(struct camera_device * device) +{ + ALOGV("%s", __FUNCTION__); + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + if (!device) + return; + + VENDOR_CALL(device, release); +} + +int camera_dump(struct camera_device * device, int fd) +{ + if (!device) + return -EINVAL; + + return VENDOR_CALL(device, dump, fd); +} + +extern "C" void heaptracker_free_leaked_memory(void); + +int camera_device_close(hw_device_t* device) +{ + int ret = 0; + wrapper_camera_device_t *wrapper_dev = NULL; + + ALOGV("%s", __FUNCTION__); + + android::Mutex::Autolock lock(gCameraWrapperLock); + + if (!device) { + ret = -EINVAL; + goto done; + } + + wrapper_dev = (wrapper_camera_device_t*) device; + + wrapper_dev->vendor->common.close((hw_device_t*)wrapper_dev->vendor); + if (wrapper_dev->base.ops) + free(wrapper_dev->base.ops); + free(wrapper_dev); +done: +#ifdef HEAPTRACKER + heaptracker_free_leaked_memory(); +#endif + return ret; +} + +/******************************************************************* + * implementation of camera_module functions + *******************************************************************/ + +/* open device handle to one of the cameras + * + * assume camera service will keep singleton of each camera + * so this function will always only be called once per camera instance + */ + +int camera_device_open(const hw_module_t* module, const char* name, + hw_device_t** device) +{ + int rv = 0; + int num_cameras = 0; + int cameraid; + wrapper_camera_device_t* camera_device = NULL; + camera_device_ops_t* camera_ops = NULL; + + android::Mutex::Autolock lock(gCameraWrapperLock); + + ALOGV("camera_device open"); + + if (name != NULL) { + if (check_vendor_module()) + return -EINVAL; + + cameraid = atoi(name); + num_cameras = gVendorModule->get_number_of_cameras(); + + if (cameraid > num_cameras) { + ALOGE("camera service provided cameraid out of bounds, " + "cameraid = %d, num supported = %d", + cameraid, num_cameras); + rv = -EINVAL; + goto fail; + } + + camera_device = (wrapper_camera_device_t*)malloc(sizeof(*camera_device)); + if (!camera_device) { + ALOGE("camera_device allocation fail"); + rv = -ENOMEM; + goto fail; + } + memset(camera_device, 0, sizeof(*camera_device)); + camera_device->id = cameraid; + + if ((rv = gVendorModule->common.methods->open((const hw_module_t*)gVendorModule, name, (hw_device_t**)&(camera_device->vendor)))) { + ALOGE("vendor camera open fail"); + goto fail; + } + ALOGV("%s: got vendor camera device 0x%08X", __FUNCTION__, (uintptr_t)(camera_device->vendor)); + + camera_ops = (camera_device_ops_t*)malloc(sizeof(*camera_ops)); + if (!camera_ops) { + ALOGE("camera_ops allocation fail"); + rv = -ENOMEM; + goto fail; + } + + memset(camera_ops, 0, sizeof(*camera_ops)); + + camera_device->base.common.tag = HARDWARE_DEVICE_TAG; + camera_device->base.common.version = 0; + camera_device->base.common.module = (hw_module_t *)(module); + camera_device->base.common.close = camera_device_close; + camera_device->base.ops = camera_ops; + + camera_ops->set_preview_window = camera_set_preview_window; + camera_ops->set_callbacks = camera_set_callbacks; + camera_ops->enable_msg_type = camera_enable_msg_type; + camera_ops->disable_msg_type = camera_disable_msg_type; + camera_ops->msg_type_enabled = camera_msg_type_enabled; + camera_ops->start_preview = camera_start_preview; + camera_ops->stop_preview = camera_stop_preview; + camera_ops->preview_enabled = camera_preview_enabled; + camera_ops->store_meta_data_in_buffers = camera_store_meta_data_in_buffers; + camera_ops->start_recording = camera_start_recording; + camera_ops->stop_recording = camera_stop_recording; + camera_ops->recording_enabled = camera_recording_enabled; + camera_ops->release_recording_frame = camera_release_recording_frame; + camera_ops->auto_focus = camera_auto_focus; + camera_ops->cancel_auto_focus = camera_cancel_auto_focus; + camera_ops->take_picture = camera_take_picture; + camera_ops->cancel_picture = camera_cancel_picture; + camera_ops->set_parameters = camera_set_parameters; + camera_ops->get_parameters = camera_get_parameters; + camera_ops->put_parameters = camera_put_parameters; + camera_ops->send_command = camera_send_command; + camera_ops->release = camera_release; + camera_ops->dump = camera_dump; + + *device = &camera_device->base.common; + } + + return rv; + +fail: + if(camera_device) { + free(camera_device); + camera_device = NULL; + } + if(camera_ops) { + free(camera_ops); + camera_ops = NULL; + } + *device = NULL; + return rv; +} + +int camera_get_number_of_cameras(void) +{ + ALOGV("%s", __FUNCTION__); + if (check_vendor_module()) + return 0; + return gVendorModule->get_number_of_cameras(); +} + +int camera_get_camera_info(int camera_id, struct camera_info *info) +{ + ALOGV("%s", __FUNCTION__); + if (check_vendor_module()) + return 0; + return gVendorModule->get_camera_info(camera_id, info); +} |