Merge "get rid of overlay HAL"

3 files changed, 0 insertions, 347 deletions

diff --git a/modules/overlay/Android.mk b/modules/overlay/Android.mk
deleted file mode 100644
index a2fa0bb6..00000000
--- a/modules/overlay/Android.mk
+++ /dev/null
@@ -1,26 +0,0 @@
-# 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.
-
-
-LOCAL_PATH := $(call my-dir)
-
-# HAL module implemenation stored in
-# hw/<OVERLAY_HARDWARE_MODULE_ID>.<ro.product.board>.so
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
-LOCAL_SHARED_LIBRARIES := liblog
-LOCAL_SRC_FILES := overlay.cpp
-LOCAL_MODULE := overlay.default
-include $(BUILD_SHARED_LIBRARY)
diff --git a/modules/overlay/README.android b/modules/overlay/README.android
deleted file mode 100644
index 971d619d..00000000
--- a/modules/overlay/README.android
+++ /dev/null
@@ -1,3 +0,0 @@
-
-Skeleton for the "overlay" HAL module.
-
diff --git a/modules/overlay/overlay.cpp b/modules/overlay/overlay.cpp
deleted file mode 100644
index 8bb73db2..00000000
--- a/modules/overlay/overlay.cpp
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * 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.
- */
-
-#define LOG_TAG "Overlay"
-
-#include <hardware/hardware.h>
-#include <hardware/overlay.h>
-
-#include <fcntl.h>
-#include <errno.h>
-
-#include <cutils/log.h>
-#include <cutils/atomic.h>
-
-/*****************************************************************************/
-
-struct overlay_control_context_t {
-    struct overlay_control_device_t device;
-    /* our private state goes below here */
-};
-
-struct overlay_data_context_t {
-    struct overlay_data_device_t device;
-    /* our private state goes below here */
-};
-
-static int overlay_device_open(const struct hw_module_t* module, const char* name,
-        struct hw_device_t** device);
-
-static struct hw_module_methods_t overlay_module_methods = {
-    open: overlay_device_open
-};
-
-struct overlay_module_t HAL_MODULE_INFO_SYM = {
-    common: {
-        tag: HARDWARE_MODULE_TAG,
-        version_major: 1,
-        version_minor: 0,
-        id: OVERLAY_HARDWARE_MODULE_ID,
-        name: "Sample Overlay module",
-        author: "The Android Open Source Project",
-        methods: &overlay_module_methods,
-    }
-};
-
-/*****************************************************************************/
-
-/*
- * This is the overlay_t object, it is returned to the user and represents
- * an overlay.
- * This handles will be passed across processes and possibly given to other
- * HAL modules (for instance video decode modules).
- */
-
-class overlay_object : public overlay_t {
-    
-    struct handle_t : public native_handle {
-        /* add the data fields we need here, for instance: */
-        int width;
-        int height;
-    };
-    
-    handle_t mHandle;
-    
-    static overlay_handle_t getHandleRef(struct overlay_t* overlay) {
-        /* returns a reference to the handle, caller doesn't take ownership */
-        return &(static_cast<overlay_object *>(overlay)->mHandle);
-    }
-    
-public:
-    overlay_object() {
-        this->overlay_t::getHandleRef = getHandleRef;
-        mHandle.version = sizeof(native_handle);
-        mHandle.numFds = 0;
-        mHandle.numInts = 2; // extra ints we have in  our handle
-    }
-};
-
-// ****************************************************************************
-// Control module
-// ****************************************************************************
-
-static int overlay_get(struct overlay_control_device_t *dev, int name) {
-    int result = -1;
-    switch (name) {
-        case OVERLAY_MINIFICATION_LIMIT:
-            result = 0; // 0 = no limit
-            break;
-        case OVERLAY_MAGNIFICATION_LIMIT:
-            result = 0; // 0 = no limit
-            break;
-        case OVERLAY_SCALING_FRAC_BITS:
-            result = 0; // 0 = infinite
-            break;
-        case OVERLAY_ROTATION_STEP_DEG:
-            result = 90; // 90 rotation steps (for instance)
-            break;
-        case OVERLAY_HORIZONTAL_ALIGNMENT:
-            result = 1; // 1-pixel alignment
-            break;
-        case OVERLAY_VERTICAL_ALIGNMENT:
-            result = 1; // 1-pixel alignment
-            break;
-        case OVERLAY_WIDTH_ALIGNMENT:
-            result = 1; // 1-pixel alignment
-            break;
-        case OVERLAY_HEIGHT_ALIGNMENT:
-            result = 1; // 1-pixel alignment
-            break;
-    }
-    return result;
-}
-
-static overlay_t* overlay_createOverlay(struct overlay_control_device_t *dev,
-         uint32_t w, uint32_t h, int32_t format) 
-{
-    /* check the input params, reject if not supported or invalid */
-    switch (format) {
-        case OVERLAY_FORMAT_RGBA_8888:
-        case OVERLAY_FORMAT_RGB_565:
-        case OVERLAY_FORMAT_BGRA_8888:
-        // add supported format here (especially YUV formats)
-            break;
-        default:
-            return NULL;
-    }
-    
-    /* Create overlay object. Talk to the h/w here and adjust to what it can
-     * do. the overlay_t returned can  be a C++ object, subclassing overlay_t
-     * if needed.
-     * 
-     * we probably want to keep a list of the overlay_t created so they can
-     * all be cleaned up in overlay_close(). 
-     */
-    return new overlay_object( /* pass needed params here*/ );
-}
-
-static void overlay_destroyOverlay(struct overlay_control_device_t *dev,
-         overlay_t* overlay) 
-{
-    /* free resources associated with this overlay_t */
-    delete overlay;
-}
-
-static int overlay_setPosition(struct overlay_control_device_t *dev,
-         overlay_t* overlay, 
-         int x, int y, uint32_t w, uint32_t h) {
-    /* set this overlay's position (talk to the h/w) */
-    return -EINVAL;
-}
-
-static int overlay_getPosition(struct overlay_control_device_t *dev,
-         overlay_t* overlay, 
-         int* x, int* y, uint32_t* w, uint32_t* h) {
-    /* get this overlay's position */
-    return -EINVAL;
-}
-
-static int overlay_setParameter(struct overlay_control_device_t *dev,
-         overlay_t* overlay, int param, int value) {
-    
-    int result = 0;
-    /* set this overlay's parameter (talk to the h/w) */
-    switch (param) {
-        case OVERLAY_ROTATION_DEG:
-            /* if only 90 rotations are supported, the call fails
-             * for other values */
-            break;
-        case OVERLAY_DITHER: 
-            break;
-        case OVERLAY_TRANSFORM: 
-            // see OVERLAY_TRANSFORM_*
-            break;
-        default:
-            result = -EINVAL;
-            break;
-    }
-    return result;
-}
-
-static int overlay_control_close(struct hw_device_t *dev) 
-{
-    struct overlay_control_context_t* ctx = (struct overlay_control_context_t*)dev;
-    if (ctx) {
-        /* free all resources associated with this device here
-         * in particular the overlay_handle_t, outstanding overlay_t, etc...
-         */
-        free(ctx);
-    }
-    return 0;
-}
- 
-// ****************************************************************************
-// Data module
-// ****************************************************************************
-
-int overlay_initialize(struct overlay_data_device_t *dev,
-        overlay_handle_t handle)
-{
-    /* 
-     * overlay_handle_t should contain all the information to "inflate" this
-     * overlay. Typically it'll have a file descriptor, informations about
-     * how many buffers are there, etc...
-     * It is also the place to mmap all buffers associated with this overlay
-     * (see getBufferAddress).
-     * 
-     * NOTE: this function doesn't take ownership of overlay_handle_t
-     * 
-     */
-    
-    return -EINVAL;
-}
-
-int overlay_dequeueBuffer(struct overlay_data_device_t *dev,
-			  overlay_buffer_t* buf) 
-{
-    /* blocks until a buffer is available and return an opaque structure
-     * representing this buffer.
-     */
-    return -EINVAL;
-}
-
-int overlay_queueBuffer(struct overlay_data_device_t *dev,
-        overlay_buffer_t buffer)
-{
-    /* Mark this buffer for posting and recycle or free overlay_buffer_t. */
-    return -EINVAL;
-}
-
-void *overlay_getBufferAddress(struct overlay_data_device_t *dev,
-        overlay_buffer_t buffer)
-{
-    /* this may fail (NULL) if this feature is not supported. In that case,
-     * presumably, there is some other HAL module that can fill the buffer,
-     * using a DSP for instance */
-    return NULL;
-}
-
-static int overlay_data_close(struct hw_device_t *dev) 
-{
-    struct overlay_data_context_t* ctx = (struct overlay_data_context_t*)dev;
-    if (ctx) {
-        /* free all resources associated with this device here
-         * in particular all pending overlay_buffer_t if needed.
-         * 
-         * NOTE: overlay_handle_t passed in initialize() is NOT freed and
-         * its file descriptors are not closed (this is the responsibility
-         * of the caller).
-         */
-        free(ctx);
-    }
-    return 0;
-}
-
-/*****************************************************************************/
-
-static int overlay_device_open(const struct hw_module_t* module, const char* name,
-        struct hw_device_t** device)
-{
-    int status = -EINVAL;
-    if (!strcmp(name, OVERLAY_HARDWARE_CONTROL)) {
-        struct overlay_control_context_t *dev;
-        dev = (overlay_control_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 = overlay_control_close;
-        
-        dev->device.get = overlay_get;
-        dev->device.createOverlay = overlay_createOverlay;
-        dev->device.destroyOverlay = overlay_destroyOverlay;
-        dev->device.setPosition = overlay_setPosition;
-        dev->device.getPosition = overlay_getPosition;
-        dev->device.setParameter = overlay_setParameter;
-
-        *device = &dev->device.common;
-        status = 0;
-    } else if (!strcmp(name, OVERLAY_HARDWARE_DATA)) {
-        struct overlay_data_context_t *dev;
-        dev = (overlay_data_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 = overlay_data_close;
-        
-        dev->device.initialize = overlay_initialize;
-        dev->device.dequeueBuffer = overlay_dequeueBuffer;
-        dev->device.queueBuffer = overlay_queueBuffer;
-        dev->device.getBufferAddress = overlay_getBufferAddress;
-        
-        *device = &dev->device.common;
-        status = 0;
-    }
-    return status;
-}