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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012, Code Aurora Forum. All rights reserved.
*
* 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 <fcntl.h>
#include <errno.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <EGL/egl.h>
#include <overlay.h>
#include <fb_priv.h>
#include <mdp_version.h>
#include "hwc_utils.h"
#include "hwc_qbuf.h"
#include "hwc_video.h"
#include "hwc_uimirror.h"
#include "hwc_copybit.h"
#include "hwc_external.h"
#include "hwc_mdpcomp.h"
#include "hwc_extonly.h"
using namespace qhwc;
static int hwc_device_open(const struct hw_module_t* module,
const char* name,
struct hw_device_t** device);
static struct hw_module_methods_t hwc_module_methods = {
open: hwc_device_open
};
hwc_module_t HAL_MODULE_INFO_SYM = {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 2,
version_minor: 0,
id: HWC_HARDWARE_MODULE_ID,
name: "Qualcomm Hardware Composer Module",
author: "CodeAurora Forum",
methods: &hwc_module_methods,
dso: 0,
reserved: {0},
}
};
/*
* Save callback functions registered to HWC
*/
static void hwc_registerProcs(struct hwc_composer_device* dev,
hwc_procs_t const* procs)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
ALOGE("%s: Invalid context", __FUNCTION__);
return;
}
ctx->device.reserved_proc[0] = (void*)procs;
}
static int hwc_prepare(hwc_composer_device_t *dev, hwc_layer_list_t* list)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
ctx->overlayInUse = false;
//Prepare is called after a vsync, so unlock previous buffers here.
ctx->qbuf->unlockAllPrevious();
return 0;
if (LIKELY(list)) {
//reset for this draw round
VideoOverlay::reset();
ExtOnly::reset();
getLayerStats(ctx, list);
// Mark all layers to COPYBIT initially
CopyBit::prepare(ctx, list);
if(VideoOverlay::prepare(ctx, list)) {
ctx->overlayInUse = true;
//Nothing here
} else if(ExtOnly::prepare(ctx, list)) {
ctx->overlayInUse = true;
} else if(UIMirrorOverlay::prepare(ctx, list)) {
ctx->overlayInUse = true;
} else if(MDPComp::configure(dev, list)) {
ctx->overlayInUse = true;
} else if (0) {
//Other features
ctx->overlayInUse = true;
} else { // Else set this flag to false, otherwise video cases
// fail in non-overlay targets.
ctx->overlayInUse = false;
}
}
return 0;
}
static int hwc_eventControl(struct hwc_composer_device* dev,
int event, int enabled)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
private_module_t* m = reinterpret_cast<private_module_t*>(
ctx->mFbDev->common.module);
switch(event) {
case HWC_EVENT_VSYNC:
if(ioctl(m->framebuffer->fd, MSMFB_OVERLAY_VSYNC_CTRL, &enabled) < 0)
ret = -errno;
if(ctx->mExtDisplay->getExternalDisplay()) {
ret = ctx->mExtDisplay->enableHDMIVsync(enabled);
}
break;
default:
ret = -EINVAL;
}
return ret;
}
static int hwc_query(struct hwc_composer_device* dev,
int param, int* value)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
private_module_t* m = reinterpret_cast<private_module_t*>(
ctx->mFbDev->common.module);
switch (param) {
case HWC_BACKGROUND_LAYER_SUPPORTED:
// Not supported for now
value[0] = 0;
break;
case HWC_VSYNC_PERIOD:
value[0] = 1000000000.0 / m->fps;
ALOGI("fps: %d", value[0]);
break;
default:
return -EINVAL;
}
return 0;
}
static int hwc_set(hwc_composer_device_t *dev,
hwc_display_t dpy,
hwc_surface_t sur,
hwc_layer_list_t* list)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
if (LIKELY(list)) {
VideoOverlay::draw(ctx, list);
ExtOnly::draw(ctx, list);
CopyBit::draw(ctx, list, (EGLDisplay)dpy, (EGLSurface)sur);
MDPComp::draw(ctx, list);
EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur);
UIMirrorOverlay::draw(ctx);
if(ctx->mExtDisplay->getExternalDisplay())
ctx->mExtDisplay->commit();
} else {
ctx->mOverlay->setState(ovutils::OV_CLOSED);
ctx->qbuf->unlockAllPrevious();
}
if(!ctx->overlayInUse)
ctx->mOverlay->setState(ovutils::OV_CLOSED);
return ret;
}
static int hwc_device_close(struct hw_device_t *dev)
{
if(!dev) {
ALOGE("%s: NULL device pointer", __FUNCTION__);
return -1;
}
closeContext((hwc_context_t*)dev);
free(dev);
return 0;
}
static int hwc_device_open(const struct hw_module_t* module, const char* name,
struct hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, HWC_HARDWARE_COMPOSER)) {
struct hwc_context_t *dev;
dev = (hwc_context_t*)malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
//Initialize hwc context
initContext(dev);
//Setup HWC methods
hwc_methods_t *methods;
methods = (hwc_methods_t *)malloc(sizeof(*methods));
memset(methods, 0, sizeof(*methods));
methods->eventControl = hwc_eventControl;
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = HWC_DEVICE_API_VERSION_0_3;
dev->device.common.module = const_cast<hw_module_t*>(module);
dev->device.common.close = hwc_device_close;
dev->device.prepare = hwc_prepare;
dev->device.set = hwc_set;
dev->device.registerProcs = hwc_registerProcs;
dev->device.query = hwc_query;
dev->device.methods = methods;
*device = &dev->device.common;
status = 0;
}
return status;
}
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