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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "common/system.h"
#include "video/video_decoder.h"
#include "engines/util.h"
#include "graphics/surface.h"
#include "zvision/clock.h"
#include "zvision/render_manager.h"
#include "zvision/zvision.h"
namespace ZVision {
// Taken from SCI
void scale2x(const byte *src, byte *dst, uint32 srcWidth, uint32 srcHeight, byte bytesPerPixel) {
assert(bytesPerPixel == 1 || bytesPerPixel == 2);
const uint32 newWidth = srcWidth * 2;
const uint32 pitch = newWidth * bytesPerPixel;
const byte *srcPtr = src;
if (bytesPerPixel == 1) {
for (uint32 y = 0; y < srcHeight; y++) {
for (uint32 x = 0; x < srcWidth; x++) {
const byte color = *srcPtr++;
dst[0] = color;
dst[1] = color;
dst[newWidth] = color;
dst[newWidth + 1] = color;
dst += 2;
}
dst += newWidth;
}
} else if (bytesPerPixel == 2) {
for (uint32 y = 0; y < srcHeight; y++) {
for (uint32 x = 0; x < srcWidth; x++) {
const byte color = *srcPtr++;
const byte color2 = *srcPtr++;
dst[0] = color;
dst[1] = color2;
dst[2] = color;
dst[3] = color2;
dst[pitch] = color;
dst[pitch + 1] = color2;
dst[pitch + 2] = color;
dst[pitch + 3] = color2;
dst += 4;
}
dst += pitch;
}
}
}
void ZVision::playVideo(Video::VideoDecoder &videoDecoder) {
// Videos use a different pixel format
Common::List<Graphics::PixelFormat> formats;
formats.push_back(videoDecoder.getPixelFormat());
initGraphics(_width, _height, true, formats);
byte bytesPerPixel = videoDecoder.getPixelFormat().bytesPerPixel;
uint16 origWidth = videoDecoder.getWidth();
uint16 origHeight = videoDecoder.getHeight();
uint16 pitch = origWidth * bytesPerPixel;
// Most videos are very small. Therefore we do a simple 2x scale
bool shouldBeScaled = (origWidth * 2 <= 640 && origHeight * 2 <= 480);
uint16 finalWidth = shouldBeScaled ? origWidth * 2 : origWidth;
uint16 finalHeight = shouldBeScaled ? origHeight * 2 : origHeight;
byte *scaledVideoFrameBuffer = new byte[origHeight * pitch * 4];
uint16 x = (_width - finalWidth) / 2;
uint16 y = (_height - finalHeight) / 2;
_clock.stop();
videoDecoder.start();
// Only continue while the video is still playing
while (videoDecoder.isPlaying()) {
// Check for engine quit and video stop key presses
while (_eventMan->pollEvent(_event)) {
switch (_event.type) {
case Common::EVENT_KEYDOWN:
switch (_event.kbd.keycode) {
case Common::KEYCODE_q:
if (_event.kbd.hasFlags(Common::KBD_CTRL))
quitGame();
break;
case Common::KEYCODE_SPACE:
videoDecoder.stop();
break;
default:
break;
}
default:
break;
}
}
if (videoDecoder.needsUpdate()) {
const Graphics::Surface *frame = videoDecoder.decodeNextFrame();
if (frame) {
if (shouldBeScaled) {
scale2x((byte *)frame->pixels, scaledVideoFrameBuffer, origWidth, origHeight, bytesPerPixel);
_system->copyRectToScreen(scaledVideoFrameBuffer, pitch * 2, x, y, finalWidth, finalHeight);
} else {
_system->copyRectToScreen((byte *)frame->pixels, pitch, x, y, finalWidth, finalHeight);
}
_system->updateScreen();
}
}
_system->delayMillis(videoDecoder.getTimeToNextFrame());
}
_clock.stop();
// Reset the pixel format to the original state
initGraphics(_width, _height, true, &_pixelFormat);
}
} // End of namespace ZVision
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