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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 "titanic/support/video_surface.h"
#include "titanic/support/image_decoders.h"
#include "titanic/support/screen_manager.h"
namespace Titanic {
int CVideoSurface::_videoSurfaceCounter = 0;
CVideoSurface::CVideoSurface(CScreenManager *screenManager) :
_screenManager(screenManager), _rawSurface(nullptr), _movie(nullptr),
_pendingLoad(false), _blitStyleFlag(false), _blitFlag(false),
_field40(nullptr), _field44(4), _field48(0), _field50(1) {
_videoSurfaceNum = _videoSurfaceCounter++;
}
CVideoSurface::~CVideoSurface() {
if (_ddSurface)
_videoSurfaceCounter -= freeSurface();
--_videoSurfaceCounter;
}
void CVideoSurface::setSurface(CScreenManager *screenManager, DirectDrawSurface *surface) {
_screenManager = screenManager;
_ddSurface = surface;
}
void CVideoSurface::blitFrom(const Point &destPos, CVideoSurface *src, const Rect *srcRect) {
if (loadIfReady() && src->loadIfReady() && _ddSurface && src->_ddSurface) {
Rect srcBounds, destBounds;
clipBounds(srcBounds, destBounds, src, srcRect, &destPos);
if (_blitStyleFlag)
blitRect2(srcBounds, destBounds, src);
else
blitRect1(srcBounds, destBounds, src);
}
}
void CVideoSurface::blitFrom(const Point &destPos, const Graphics::Surface *src) {
lock();
_rawSurface->blitFrom(*src, destPos);
unlock();
}
void CVideoSurface::clipBounds(Rect &srcRect, Rect &destRect,
CVideoSurface *srcSurface, const Rect *subRect, const Point *destPos) {
// Figure out initial source rect and dest rect, based on whether
// specific subRect and/or destPos have been passed
if (destPos) {
destRect.left = destPos->x;
destRect.top = destPos->y;
} else {
destRect.left = destRect.top = 0;
}
if (subRect) {
destRect.right = destRect.left + subRect->width();
destRect.bottom = destRect.top + subRect->height();
srcRect = *subRect;
} else {
srcRect.right = srcRect.left + srcSurface->getWidth();
srcRect.bottom = srcRect.top + srcSurface->getHeight();
srcRect = Rect(0, 0, srcSurface->getWidth(), srcSurface->getHeight());
}
// Clip destination rect to be on-screen
if (destRect.left < 0) {
srcRect.left -= destRect.left;
destRect.left = 0;
}
if (destRect.top < 0) {
srcRect.top -= destRect.top;
destRect.top = 0;
}
if (destRect.right > getWidth()) {
srcRect.right += getWidth() - destRect.right;
destRect.right = getWidth();
}
if (destRect.bottom > getHeight()) {
srcRect.bottom += getHeight() - destRect.bottom;
destRect.bottom = getHeight();
}
// Clip source rect to be within the source surface
if (srcRect.left < 0) {
destRect.left -= srcRect.left;
srcRect.left = 0;
}
if (srcRect.top < 0) {
destRect.top -= srcRect.top;
srcRect.top = 0;
}
if (srcRect.right > srcSurface->getWidth()) {
destRect.right += srcSurface->getWidth() - srcRect.right;
srcRect.right = srcSurface->getWidth();
}
if (srcRect.bottom > srcSurface->getHeight()) {
destRect.bottom += srcSurface->getHeight() - srcRect.bottom;
srcRect.bottom = srcSurface->getHeight();
}
// Validate that the resulting rects are valid
if (destRect.left >= destRect.right || destRect.top >= destRect.bottom
|| srcRect.left >= srcRect.right || srcRect.top >= srcRect.bottom)
error("Invalid rect");
}
void CVideoSurface::blitRect1(const Rect &srcRect, const Rect &destRect, CVideoSurface *src) {
src->lock();
lock();
// TODO: Do it like the original does it
_rawSurface->transBlitFrom(*src->_rawSurface, srcRect, destRect,
getTransparencyColor());
src->unlock();
unlock();
}
void CVideoSurface::blitRect2(const Rect &srcRect, const Rect &destRect, CVideoSurface *src) {
// TODO: Do it like the original does it
blitRect1(srcRect, destRect, src);
}
uint CVideoSurface::getTransparencyColor() {
uint32 val = -(getPixelDepth() - 2);
val &= 0xFFFF8400;
val += 0xF81F;
return val;
}
bool CVideoSurface::proc45() {
if (_field50) {
_field50 = 0;
return true;
} else if (_movie) {
return _movie->get10();
} else {
return false;
}
}
/*------------------------------------------------------------------------*/
byte OSVideoSurface::_palette1[32][32];
byte OSVideoSurface::_palette2[32][32];
OSVideoSurface::OSVideoSurface(CScreenManager *screenManager, DirectDrawSurface *surface) :
CVideoSurface(screenManager) {
_ddSurface = surface;
}
OSVideoSurface::OSVideoSurface(CScreenManager *screenManager, const CResourceKey &key, bool pendingLoad) :
CVideoSurface(screenManager) {
_ddSurface = nullptr;
_pendingLoad = pendingLoad;
if (_pendingLoad) {
loadResource(key);
} else {
_resourceKey = key;
load();
}
}
void OSVideoSurface::setupPalette(byte palette[32][32], byte val) {
for (uint idx1 = 0; idx1 < 32; ++idx1) {
for (uint idx2 = 0, base = 0; idx2 < 32; ++idx2, base += idx1) {
int64 v = 0x84210843;
v *= base;
uint v2 = (v >> 36);
v = ((v2 >> 31) + v2) & 0xff;
palette[idx1][idx2] = v << 3;
if (val != 0xff && v != idx2) {
v = 0x80808081 * v * val;
v2 = v >> 39;
palette[idx1][idx2] = ((v2 >> 31) + v2) << 3;
}
}
}
}
void OSVideoSurface::loadResource(const CResourceKey &key) {
_resourceKey = key;
_pendingLoad = true;
if (hasSurface())
load();
}
void OSVideoSurface::loadTarga(const CResourceKey &key) {
// Decode the image
CTargaDecode decoder;
decoder.decode(*this, key.getString());
if (getPixelDepth() == 2)
shiftColors();
_resourceKey = key;
}
void OSVideoSurface::loadJPEG(const CResourceKey &key) {
// Decode the image
CJPEGDecode decoder;
decoder.decode(*this, key.getString());
if (getPixelDepth() == 2)
shiftColors();
_resourceKey = key;
}
void OSVideoSurface::loadMovie(const CResourceKey &key, bool destroyFlag) {
// Delete any prior movie
if (_movie) {
delete _movie;
_movie = nullptr;
}
// Create the new movie and load the first frame to the video surface
_movie = new OSMovie(key, this);
_movie->setFrame(0);
// If flagged to destroy, then immediately destroy movie instance
if (destroyFlag) {
delete _movie;
_movie = nullptr;
}
_resourceKey = key;
}
bool OSVideoSurface::lock() {
if (!loadIfReady())
return false;
++_lockCount;
_rawSurface = _ddSurface->lock(nullptr, 0);
return true;
}
void OSVideoSurface::unlock() {
if (!--_lockCount) {
if (_rawSurface)
_ddSurface->unlock();
_rawSurface = nullptr;
}
}
bool OSVideoSurface::hasSurface() {
return _ddSurface != nullptr;
}
int OSVideoSurface::getWidth() {
if (!loadIfReady())
error("Could not load resource");
return _ddSurface->getWidth();
}
int OSVideoSurface::getHeight() {
if (!loadIfReady())
error("Could not load resource");
return _ddSurface->getHeight();
}
int OSVideoSurface::getPitch() {
if (!loadIfReady())
error("Could not load resource");
return _ddSurface->getPitch();
}
void OSVideoSurface::resize(int width, int height) {
freeSurface();
_screenManager->resizeSurface(this, width, height);
if (_ddSurface)
_videoSurfaceCounter += _ddSurface->getSize();
}
int OSVideoSurface::getPixelDepth() {
if (!loadIfReady())
assert(0);
lock();
int result = _rawSurface->format.bytesPerPixel;
if (result == 1)
// Paletted 8-bit images don't store the color directly in the pixels
result = 0;
unlock();
return result;
}
bool OSVideoSurface::load() {
if (!_resourceKey.scanForFile())
return false;
switch (_resourceKey.fileTypeSuffix()) {
case FILETYPE_IMAGE:
switch (_resourceKey.imageTypeSuffix()) {
case IMAGETYPE_TARGA:
loadTarga(_resourceKey);
break;
case IMAGETYPE_JPEG:
loadJPEG(_resourceKey);
break;
default:
break;
}
return true;
case FILETYPE_MOVIE:
loadMovie(_resourceKey);
return true;
default:
return false;
}
}
uint16 OSVideoSurface::getPixel(const Common::Point &pt) {
if (!loadIfReady())
return 0;
if (pt.x >= 0 && pt.y >= 0 && pt.x < getWidth() && pt.y < getHeight()) {
lock();
uint16 pixel = *(uint16 *)_rawSurface->getBasePtr(pt.x, pt.y);
unlock();
return pixel;
} else {
return getTransparencyColor();
}
}
void OSVideoSurface::changePixel(uint16 *pixelP, uint16 *color, byte srcVal, bool remapFlag) {
assert(getPixelDepth() == 2);
const Graphics::PixelFormat &destFormat = _ddSurface->getFormat();
const Graphics::PixelFormat srcFormat(2, 5, 5, 5, 0, 10, 5, 0, 0);
// Get the color
byte r, g, b;
srcFormat.colorToRGB(*color, r, g, b);
if (remapFlag) {
r = _palette1[31 - srcVal][r >> 3];
g = _palette1[31 - srcVal][g >> 3];
b = _palette1[31 - srcVal][b >> 3];
}
byte r2, g2, b2;
destFormat.colorToRGB(*pixelP, r2, g2, b2);
r2 = _palette1[srcVal][r2 >> 3];
g2 = _palette1[srcVal][g2 >> 3];
b2 = _palette1[srcVal][b2 >> 3];
*pixelP = destFormat.RGBToColor(r + r2, g + g2, b + b2);
}
void OSVideoSurface::shiftColors() {
if (!loadIfReady())
return;
// Currently no further processing is needed, since for ScummVM,
// we already convert 16-bit surfaces as soon as they're loaded
}
void OSVideoSurface::playMovie(uint flags, CVideoSurface *surface) {
if (loadIfReady() && _movie)
_movie->play(flags, surface);
}
void OSVideoSurface::playMovie(uint startFrame, uint endFrame, int v3, bool v4) {
if (loadIfReady() && _movie) {
_movie->play(startFrame, endFrame, v3, v4);
}
}
void OSVideoSurface::proc35(const CString &name, int flags, CGameObject *owner) {
if (loadIfReady() && _movie) {
_movie->proc12(name, flags, owner);
}
}
void OSVideoSurface::stopMovie() {
if (_movie)
_movie->stop();
}
void OSVideoSurface::setMovieFrame(uint frameNumber) {
if (loadIfReady() && _movie)
_movie->setFrame(frameNumber);
}
void OSVideoSurface::proc38(int v1, int v2) {
warning("OSVideoSurface::proc38");
}
void OSVideoSurface::proc39(int v1, int v2) {
warning("OSVideoSurface::proc39");
}
bool OSVideoSurface::loadIfReady() {
_videoSurfaceNum = _videoSurfaceCounter;
if (hasSurface()) {
return true;
} else if (_pendingLoad) {
_field50 = 1;
load();
return true;
} else {
return false;
}
}
int OSVideoSurface::freeSurface() {
if (!_ddSurface)
return 0;
int surfaceSize = _ddSurface->getSize();
delete _movie;
_movie = nullptr;
delete _ddSurface;
_ddSurface = nullptr;
return surfaceSize;
}
uint16 *OSVideoSurface::getBasePtr(int x, int y) {
assert(_rawSurface);
return (uint16 *)_rawSurface->getBasePtr(x, y);
}
} // End of namespace Titanic
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