thirdparty/scummvm
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PRINCE: blackPalette(), setPalette(), O_BLACKPALETTE, O_SETUPPALETTE

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This commit is contained in:
lukaslw 2014-07-24 18:39:39 +02:00
parent c54699721a
commit 8829b20ce9
3 changed files with 51 additions and 1 deletions
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46
engines/prince/prince.cpp
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@ -372,6 +372,9 @@ bool AnimListItem::loadFromStream(Common::SeekableReadStream &stream) {
} }
bool PrinceEngine::loadLocation(uint16 locationNr) { bool PrinceEngine::loadLocation(uint16 locationNr) {
blackPalette();
_flicPlayer.close(); _flicPlayer.close();
memset(_textSlots, 0, sizeof(_textSlots)); memset(_textSlots, 0, sizeof(_textSlots));
@ -407,7 +410,6 @@ bool PrinceEngine::loadLocation(uint16 locationNr) {
Resource::loadResource(_roomBmp, "room", true); Resource::loadResource(_roomBmp, "room", true);
if (_roomBmp->getSurface()) { if (_roomBmp->getSurface()) {
_sceneWidth = _roomBmp->getSurface()->w; _sceneWidth = _roomBmp->getSurface()->w;
_graph->setPalette(_roomBmp->getPalette());
} }
loadZoom(_mainHero->_zoomBitmap, _mainHero->kZoomBitmapLen, "zoom"); // TODO - second hero loadZoom(_mainHero->_zoomBitmap, _mainHero->kZoomBitmapLen, "zoom"); // TODO - second hero
@ -1760,6 +1762,48 @@ void PrinceEngine::drawScreen() {
} }
} }
void PrinceEngine::blackPalette() {
byte *paletteBackup = (byte *)malloc(256 * 3);
byte *blackPalette = (byte *)malloc(256 * 3);
int fadeStep = kFadeStep - 1;
for (int i = 0; i < kFadeStep; i++) {
_system->getPaletteManager()->grabPalette(paletteBackup, 0, 256);
for (int j = 0; j < 256; j++) {
blackPalette[3 * j] = paletteBackup[3 * j] * fadeStep / 4;
blackPalette[3 * j + 1] = paletteBackup[3 * j + 1] * fadeStep / 4;
blackPalette[3 * j + 2] = paletteBackup[3 * j + 2] * fadeStep / 4;
}
fadeStep--;
_graph->setPalette(blackPalette);
_system->updateScreen();
pause();
}
free(paletteBackup);
free(blackPalette);
}
void PrinceEngine::setPalette() {
byte *paletteBackup;
byte *blackPalette = (byte *)malloc(256 * 3);
int fadeStep = 0;
for (int i = 0; i <= kFadeStep; i++) {
paletteBackup = (byte *)_roomBmp->getPalette();
for (int j = 0; j < 256; j++) {
blackPalette[3 * j] = paletteBackup[3 * j] * fadeStep / 4;
blackPalette[3 * j + 1] = paletteBackup[3 * j + 1] * fadeStep / 4;
blackPalette[3 * j + 2] = paletteBackup[3 * j + 2] * fadeStep / 4;
}
fadeStep++;
_graph->setPalette(blackPalette);
_system->updateScreen();
pause();
}
_graph->setPalette(paletteBackup);
free(blackPalette);
}
void PrinceEngine::pause() { void PrinceEngine::pause() {
uint32 currentTime = _system->getMillis(); uint32 currentTime = _system->getMillis();
int delay = 1000/15 - int32(_system->getMillis() - currentTime); int delay = 1000/15 - int32(_system->getMillis() - currentTime);

4
engines/prince/prince.h
View file

@ -439,6 +439,10 @@ public:
void doZoomOut(int slot); void doZoomOut(int slot);
void freeZoomObject(int slot); void freeZoomObject(int slot);
static const uint8 kFadeStep = 4;
void blackPalette();
void setPalette();
// Pathfinding // Pathfinding
static const int16 kPathGridStep = 2; static const int16 kPathGridStep = 2;
static const int32 kPathBitmapLen = (kMaxPicHeight / kPathGridStep * kMaxPicWidth / kPathGridStep) / 8; static const int32 kPathBitmapLen = (kMaxPicHeight / kPathGridStep * kMaxPicWidth / kPathGridStep) / 8;

2
engines/prince/script.cpp
View file

@ -520,10 +520,12 @@ void Interpreter::O_WAITFOREVER() {
} }
void Interpreter::O_BLACKPALETTE() { void Interpreter::O_BLACKPALETTE() {
_vm->blackPalette();
debugInterpreter("O_BLACKPALETTE"); debugInterpreter("O_BLACKPALETTE");
} }
void Interpreter::O_SETUPPALETTE() { void Interpreter::O_SETUPPALETTE() {
_vm->setPalette();
debugInterpreter("O_SETUPPALETTE"); debugInterpreter("O_SETUPPALETTE");
} }