59d5b624c6
- Uevent observer as part of Hwcomposer - HPD, enabling/disabling external display from HWC Change-Id: I52b4f30c78e98c5b52c86722046389f458c2dbee
147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, Code Aurora Forum. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <fcntl.h>
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#include <errno.h>
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#include <cutils/log.h>
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#include <cutils/atomic.h>
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#include <EGL/egl.h>
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#include "hwc_utils.h"
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#include "hwc_video.h"
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#include "hwc_uimirror.h"
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using namespace qhwc;
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static int hwc_device_open(const struct hw_module_t* module,
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const char* name,
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struct hw_device_t** device);
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static struct hw_module_methods_t hwc_module_methods = {
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open: hwc_device_open
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};
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hwc_module_t HAL_MODULE_INFO_SYM = {
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common: {
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tag: HARDWARE_MODULE_TAG,
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version_major: 2,
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version_minor: 0,
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id: HWC_HARDWARE_MODULE_ID,
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name: "Qualcomm Hardware Composer Module",
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author: "CodeAurora Forum",
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methods: &hwc_module_methods,
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dso: 0,
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reserved: {0},
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}
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};
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/*
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* Save callback functions registered to HWC
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*/
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static void hwc_registerProcs(struct hwc_composer_device* dev,
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hwc_procs_t const* procs)
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{
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hwc_context_t* ctx = (hwc_context_t*)(dev);
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if(!ctx) {
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ALOGE("%s: Invalid context", __FUNCTION__);
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return;
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}
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ctx->device.reserved_proc[0] = (void*)procs;
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}
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static int hwc_prepare(hwc_composer_device_t *dev, hwc_layer_list_t* list)
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{
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hwc_context_t* ctx = (hwc_context_t*)(dev);
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ctx->overlayInUse = false;
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//Prepare is called after a vsync, so unlock previous buffers here.
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ctx->qbuf->unlockAllPrevious();
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if (LIKELY(list)) {
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getLayerStats(ctx, list);
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if(VideoOverlay::prepare(ctx, list)) {
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ctx->overlayInUse = true;
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//Nothing here
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} else if(UIMirrorOverlay::prepare(ctx, list)) {
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ctx->overlayInUse = true;
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} else if (0) {
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//Other features
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ctx->overlayInUse = true;
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}
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}
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return 0;
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}
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static int hwc_set(hwc_composer_device_t *dev,
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hwc_display_t dpy,
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hwc_surface_t sur,
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hwc_layer_list_t* list)
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{
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int ret = 0;
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hwc_context_t* ctx = (hwc_context_t*)(dev);
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if (LIKELY(list)) {
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VideoOverlay::draw(ctx, list);
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EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur);
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UIMirrorOverlay::draw(ctx);
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} else {
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ctx->mOverlay->setState(ovutils::OV_CLOSED);
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ctx->qbuf->unlockAllPrevious();
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}
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if(!ctx->overlayInUse)
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ctx->mOverlay->setState(ovutils::OV_CLOSED);
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return ret;
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}
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static int hwc_device_close(struct hw_device_t *dev)
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{
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if(!dev) {
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ALOGE("hwc_device_close null device pointer");
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return -1;
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}
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closeContext((hwc_context_t*)dev);
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free(dev);
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return 0;
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}
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static int hwc_device_open(const struct hw_module_t* module, const char* name,
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struct hw_device_t** device)
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{
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int status = -EINVAL;
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if (!strcmp(name, HWC_HARDWARE_COMPOSER)) {
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struct hwc_context_t *dev;
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dev = (hwc_context_t*)malloc(sizeof(*dev));
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memset(dev, 0, sizeof(*dev));
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initContext(dev);
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dev->device.common.tag = HARDWARE_DEVICE_TAG;
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dev->device.common.version = 0;
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dev->device.common.module = const_cast<hw_module_t*>(module);
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dev->device.common.close = hwc_device_close;
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dev->device.prepare = hwc_prepare;
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dev->device.set = hwc_set;
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dev->device.registerProcs = hwc_registerProcs;
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*device = &dev->device.common;
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status = 0;
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}
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return status;
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}
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