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android_hardware_qcom_display/libhwcomposer/hwc_utils.cpp
Prashant Surana cc5cb1781c Add support for PIP, picture in picture feature 
Add a new state and required implementation in new overlay to support playback
of two videos using overlay.
Add a new class VideoPIP to handle the pip feature.

Change-Id: Ibce7044bc1216cba77bd952e191aed5472ed6737
2012-09-12 23:07:49 -05:00

263 lines
7.9 KiB
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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 <overlay.h>
#include <cutils/properties.h>
#include <gralloc_priv.h>
#include <fb_priv.h>
#include "hwc_utils.h"
#include "mdp_version.h"
#include "hwc_video.h"
#include "hwc_pip.h"
#include "hwc_qbuf.h"
#include "hwc_copybit.h"
#include "hwc_external.h"
#include "hwc_mdpcomp.h"
#include "hwc_extonly.h"
#include "hwc_service.h"
namespace qhwc {
// Opens Framebuffer device
static void openFramebufferDevice(hwc_context_t *ctx)
{
hw_module_t const *module;
if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
framebuffer_open(module, &(ctx->mFbDev));
}
}
void initContext(hwc_context_t *ctx)
{
openFramebufferDevice(ctx);
ctx->mOverlay = overlay::Overlay::getInstance();
ctx->mHwcService = hwcService::HWComposerService::getInstance();
ctx->mHwcService->setHwcContext(ctx);
ctx->qbuf = new QueuedBufferStore();
ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
ctx->mCopybitEngine = CopybitEngine::getInstance();
ctx->mExtDisplay = new ExternalDisplay(ctx);
MDPComp::init(ctx);
char value[PROPERTY_VALUE_MAX];
property_get("debug.egl.swapinterval", value, "1");
ctx->swapInterval = atoi(value);
ALOGI("Initializing Qualcomm Hardware Composer");
ALOGI("MDP version: %d", ctx->mMDP.version);
}
void closeContext(hwc_context_t *ctx)
{
if(ctx->mOverlay) {
delete ctx->mOverlay;
ctx->mOverlay = NULL;
}
if(ctx->mCopybitEngine) {
delete ctx->mCopybitEngine;
ctx->mCopybitEngine = NULL;
}
if(ctx->mFbDev) {
framebuffer_close(ctx->mFbDev);
ctx->mFbDev = NULL;
}
if(ctx->qbuf) {
delete ctx->qbuf;
ctx->qbuf = NULL;
}
if(ctx->mExtDisplay) {
delete ctx->mExtDisplay;
ctx->mExtDisplay = NULL;
}
free(const_cast<hwc_methods_t *>(ctx->device.methods));
}
void dumpLayer(hwc_layer_t const* l)
{
ALOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}"
", {%d,%d,%d,%d}",
l->compositionType, l->flags, l->handle, l->transform, l->blending,
l->sourceCrop.left,
l->sourceCrop.top,
l->sourceCrop.right,
l->sourceCrop.bottom,
l->displayFrame.left,
l->displayFrame.top,
l->displayFrame.right,
l->displayFrame.bottom);
}
void getLayerStats(hwc_context_t *ctx, const hwc_layer_list_t *list)
{
//Video specific stats
int yuvCount = 0;
int yuvLayerIndex = -1;
int pipLayerIndex = -1; //2nd video in pip scenario
bool isYuvLayerSkip = false;
int skipCount = 0;
int ccLayerIndex = -1; //closed caption
int extLayerIndex = -1; //ext-only or block except closed caption
int extCount = 0; //ext-only except closed caption
bool isExtBlockPresent = false; //is BLOCK layer present
for (size_t i = 0; i < list->numHwLayers; i++) {
private_handle_t *hnd =
(private_handle_t *)list->hwLayers[i].handle;
if (UNLIKELY(isYuvBuffer(hnd))) {
yuvCount++;
if(yuvCount==1) {
//Set the primary video to the video layer in
//lower z-order
yuvLayerIndex = i;
}
if(yuvCount == 2) {
//In case of two videos, set the pipLayerIndex to the
//second video
pipLayerIndex = i;
}
//Animating
if (isSkipLayer(&list->hwLayers[i])) {
isYuvLayerSkip = true;
}
} else if(UNLIKELY(isExtCC(hnd))) {
ccLayerIndex = i;
} else if(UNLIKELY(isExtBlock(hnd))) {
extCount++;
extLayerIndex = i;
isExtBlockPresent = true;
} else if(UNLIKELY(isExtOnly(hnd))) {
extCount++;
//If BLOCK layer present, dont cache index, display BLOCK only.
if(isExtBlockPresent == false) extLayerIndex = i;
} else if (isSkipLayer(&list->hwLayers[i])) { //Popups
//If video layer is below a skip layer
if(yuvLayerIndex != -1 && yuvLayerIndex < (ssize_t)i) {
isYuvLayerSkip = true;
}
skipCount++;
}
}
VideoOverlay::setStats(yuvCount, yuvLayerIndex, isYuvLayerSkip,
ccLayerIndex);
VideoPIP::setStats(yuvCount, yuvLayerIndex, isYuvLayerSkip,
pipLayerIndex);
ExtOnly::setStats(extCount, extLayerIndex, isExtBlockPresent);
CopyBit::setStats(yuvCount, yuvLayerIndex, isYuvLayerSkip);
MDPComp::setStats(skipCount);
ctx->numHwLayers = list->numHwLayers;
return;
}
//Crops source buffer against destination and FB boundaries
void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
const int fbWidth, const int fbHeight) {
int& crop_x = crop.left;
int& crop_y = crop.top;
int& crop_r = crop.right;
int& crop_b = crop.bottom;
int crop_w = crop.right - crop.left;
int crop_h = crop.bottom - crop.top;
int& dst_x = dst.left;
int& dst_y = dst.top;
int& dst_r = dst.right;
int& dst_b = dst.bottom;
int dst_w = dst.right - dst.left;
int dst_h = dst.bottom - dst.top;
if(dst_x < 0) {
float scale_x = crop_w * 1.0f / dst_w;
float diff_factor = (scale_x * abs(dst_x));
crop_x = crop_x + (int)diff_factor;
crop_w = crop_r - crop_x;
dst_x = 0;
dst_w = dst_r - dst_x;;
}
if(dst_r > fbWidth) {
float scale_x = crop_w * 1.0f / dst_w;
float diff_factor = scale_x * (dst_r - fbWidth);
crop_r = crop_r - diff_factor;
crop_w = crop_r - crop_x;
dst_r = fbWidth;
dst_w = dst_r - dst_x;
}
if(dst_y < 0) {
float scale_y = crop_h * 1.0f / dst_h;
float diff_factor = scale_y * abs(dst_y);
crop_y = crop_y + diff_factor;
crop_h = crop_b - crop_y;
dst_y = 0;
dst_h = dst_b - dst_y;
}
if(dst_b > fbHeight) {
float scale_y = crop_h * 1.0f / dst_h;
float diff_factor = scale_y * (dst_b - fbHeight);
crop_b = crop_b - diff_factor;
crop_h = crop_b - crop_y;
dst_b = fbHeight;
dst_h = dst_b - dst_y;
}
}
void wait4fbPost(hwc_context_t* ctx) {
framebuffer_device_t *fbDev = ctx->mFbDev;
if(fbDev) {
private_module_t* m = reinterpret_cast<private_module_t*>(
fbDev->common.module);
//wait for the fb_post to be called
pthread_mutex_lock(&m->fbPostLock);
while(m->fbPostDone == false) {
pthread_cond_wait(&(m->fbPostCond), &(m->fbPostLock));
}
m->fbPostDone = false;
pthread_mutex_unlock(&m->fbPostLock);
}
}
void wait4Pan(hwc_context_t* ctx) {
framebuffer_device_t *fbDev = ctx->mFbDev;
if(fbDev) {
private_module_t* m = reinterpret_cast<private_module_t*>(
fbDev->common.module);
//wait for the fb_post's PAN to finish
pthread_mutex_lock(&m->fbPanLock);
while(m->fbPanDone == false) {
pthread_cond_wait(&(m->fbPanCond), &(m->fbPanLock));
}
m->fbPanDone = false;
pthread_mutex_unlock(&m->fbPanLock);
}
}
};//namespace
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