bf3c454efe
Add support for different types of external-only layers EXTERNAL_ONLY: General purpose EXTERNAL_BLOCK: Blocks the display of other ext-only layers EXTERNAL_CC: Used for closed captions with videos. Change-Id: I7cb531a55a2f0015e3a51673faf08941bcea1923
83 lines
2.9 KiB
C++
83 lines
2.9 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
#ifndef HWC_EXTONLY_H
|
|
#define HWC_EXTONLY_H
|
|
|
|
#include <overlay.h>
|
|
#include "hwc_utils.h"
|
|
|
|
#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
|
|
#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
|
|
|
|
namespace qhwc {
|
|
//Feature for using overlay to display external-only layers on HDTV
|
|
class ExtOnly {
|
|
public:
|
|
//Sets up members and prepares overlay if conditions are met
|
|
static bool prepare(hwc_context_t *ctx, hwc_layer_list_t *list);
|
|
//Draws layer if this feature is on
|
|
static bool draw(hwc_context_t *ctx, hwc_layer_list_t *list);
|
|
//Receives data from hwc
|
|
static void setStats(int extCount, int extIndex, bool isExtBlock);
|
|
//resets values
|
|
static void reset();
|
|
private:
|
|
//Choose an appropriate overlay state based on conditions
|
|
static void chooseState(hwc_context_t *ctx);
|
|
//Configures overlay
|
|
static bool configure(hwc_context_t *ctx, hwc_layer_t *layer);
|
|
//Marks layer flags if this feature is used
|
|
static void markFlags(hwc_layer_t *layer);
|
|
//returns ext-only count
|
|
static int getExtCount();
|
|
|
|
//The chosen overlay state.
|
|
static ovutils::eOverlayState sState;
|
|
//Number of ext-only layers in this drawing round. Used for stats/debugging.
|
|
//This does not reflect the closed caption layer count even though its
|
|
//ext-only.
|
|
static int sExtCount;
|
|
//Index of ext-only layer. If there are 2 such layers with 1 marked as BLOCK
|
|
//then this will hold the index of BLOCK layer.
|
|
static int sExtIndex;
|
|
//Flags if ext-only layer is BLOCK, which means only this layer (sExtIndex)
|
|
//is displayed even if other ext-only layers are present to block their
|
|
//content. This is used for stats / debugging only.
|
|
static bool sIsExtBlock;
|
|
//Flags if this feature is on.
|
|
static bool sIsModeOn;
|
|
};
|
|
|
|
inline void ExtOnly::setStats(int extCount, int extIndex, bool isExtBlock) {
|
|
sExtCount = extCount;
|
|
sExtIndex = extIndex;
|
|
sIsExtBlock = isExtBlock;
|
|
}
|
|
|
|
inline int ExtOnly::getExtCount() { return sExtCount; }
|
|
inline void ExtOnly::reset() {
|
|
sExtCount = 0;
|
|
sExtIndex = -1;
|
|
sIsExtBlock = false;
|
|
sIsModeOn = false;
|
|
sState = ovutils::OV_CLOSED;
|
|
}
|
|
|
|
}; //namespace qhwc
|
|
|
|
#endif //HWC_EXTONLY_H
|