void Screen::slamRect(const Common::Rect &r) {
if (r.width() && r.height() > 0) {
Common::Rect srcRect = r, destRect = r;
destRect.translate(-_currentScroll.x, -_currentScroll.y);
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 > SHERLOCK_SCREEN_WIDTH) {
srcRect.right -= (destRect.left - SHERLOCK_SCREEN_WIDTH);
destRect.right = SHERLOCK_SCREEN_WIDTH;
}
if (destRect.bottom > SHERLOCK_SCREEN_HEIGHT) {
srcRect.bottom -= (destRect.bottom - SHERLOCK_SCREEN_HEIGHT);
destRect.bottom = SHERLOCK_SCREEN_HEIGHT;
}
if (srcRect.isValidRect())
SHblitFrom(_backBuffer, Common::Point(destRect.left, destRect.top), srcRect);
}
}
void Screen::randomTransition() {
Events &events = *_vm->_events;
const int TRANSITION_MULTIPLIER = 0x15a4e35;
clearDirtyRects();
assert(IS_SERRATED_SCALPEL);
for (int idx = 0; idx <= 65535 && !_vm->shouldQuit(); ++idx) {
_transitionSeed = _transitionSeed * TRANSITION_MULTIPLIER + 1;
int offset = _transitionSeed & 0xFFFF;
if (offset < (this->width() * this->height()))
*((byte *)getPixels() + offset) = *((const byte *)_backBuffer.getPixels() + offset);
if (idx != 0 && (idx % 300) == 0) {
// Ensure there's a full screen dirty rect for the next frame update
if (!isDirty())
addDirtyRect(Common::Rect(0, 0, this->w, this->h));
events.pollEvents();
events.delay(1);
}
}
// Make sure everything has been transferred
SHblitFrom(_backBuffer);
}
void Screen::verticalTransition() {
Events &events = *_vm->_events;
byte table[640];
Common::fill(&table[0], &table[640], 0);
for (int yp = 0; yp < this->height(); ++yp) {
for (int xp = 0; xp < this->width(); ++xp) {
int temp = (table[xp] >= (this->height() - 3)) ? this->height() - table[xp] :
_vm->getRandomNumber(3) + 1;
if (temp) {
SHblitFrom(_backBuffer1, Common::Point(xp, table[xp]),
Common::Rect(xp, table[xp], xp + 1, table[xp] + temp));
table[xp] += temp;
}
}
events.delay(10);
}
}
void Scalpel3DOScreen::SHblitFrom(const Graphics::Surface &src, const Common::Point &destPos) {
SHblitFrom(src, Common::Point(0, 0), Common::Rect(0, 0, src.w, src.h));
}
void Scalpel3DOScreen::SHblitFrom(const Graphics::Surface &src) {
SHblitFrom(src, Common::Point(0, 0));
}
