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/*
* Copyright (C) 2007 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 "SurfaceFlinger"
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <core/SkBitmap.h>
#include <ui/EGLDisplaySurface.h>
#include "LayerBase.h"
#include "LayerScreenshot.h"
#include "SurfaceFlinger.h"
#include "DisplayHardware/DisplayHardware.h"
namespace android {
// ---------------------------------------------------------------------------
const uint32_t LayerScreenshot::typeInfo = LayerBase::typeInfo | 0x20;
const char* const LayerScreenshot::typeID = "LayerScreenshot";
// ---------------------------------------------------------------------------
LayerScreenshot::LayerScreenshot(SurfaceFlinger* flinger, DisplayID display)
: LayerBase(flinger, display), mReply(0)
{
}
LayerScreenshot::~LayerScreenshot()
{
}
void LayerScreenshot::onDraw(const Region& clip) const
{
const DisplayHardware& hw(graphicPlane(0).displayHardware());
copybit_image_t dst;
hw.getDisplaySurface(&dst);
if (dst.base != 0) {
uint8_t const* src = (uint8_t const*)(intptr_t(dst.base) + dst.offset);
const int fbWidth = dst.w;
const int fbHeight = dst.h;
const int fbFormat = dst.format;
int x = mTransformedBounds.left;
int y = mTransformedBounds.top;
int w = mTransformedBounds.width();
int h = mTransformedBounds.height();
Parcel* const reply = mReply;
if (reply) {
const size_t Bpp = bytesPerPixel(fbFormat);
const size_t size = w * h * Bpp;
int32_t cfg = SkBitmap::kNo_Config;
switch (fbFormat) {
case PIXEL_FORMAT_RGBA_4444: cfg = SkBitmap::kARGB_4444_Config; break;
case PIXEL_FORMAT_RGBA_8888: cfg = SkBitmap::kARGB_8888_Config; break;
case PIXEL_FORMAT_RGB_565: cfg = SkBitmap::kRGB_565_Config; break;
case PIXEL_FORMAT_A_8: cfg = SkBitmap::kA8_Config; break;
}
reply->writeInt32(0);
reply->writeInt32(cfg);
reply->writeInt32(w);
reply->writeInt32(h);
reply->writeInt32(w * Bpp);
void* data = reply->writeInplace(size);
if (data) {
uint8_t* d = (uint8_t*)data;
uint8_t const* s = src + (x + y*fbWidth) * Bpp;
if (w == fbWidth) {
memcpy(d, s, w*h*Bpp);
} else {
for (int y=0 ; y<h ; y++) {
memcpy(d, s, w*Bpp);
d += w*Bpp;
s += fbWidth*Bpp;
}
}
}
}
}
mCV.broadcast();
}
void LayerScreenshot::takeScreenshot(Mutex& lock, Parcel* reply)
{
mReply = reply;
mCV.wait(lock);
}
// ---------------------------------------------------------------------------
}; // namespace android
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