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-rw-r--r--engines/sci/graphics/transitions.cpp74
-rw-r--r--engines/sci/graphics/transitions.h4
2 files changed, 58 insertions, 20 deletions
diff --git a/engines/sci/graphics/transitions.cpp b/engines/sci/graphics/transitions.cpp
index ee8e9f70e9..6ecfc9841f 100644
--- a/engines/sci/graphics/transitions.cpp
+++ b/engines/sci/graphics/transitions.cpp
@@ -121,11 +121,20 @@ void GfxTransitions::setup(int16 number, bool blackoutFlag) {
}
}
-void GfxTransitions::updateScreenAndWait(int msec) {
+void GfxTransitions::updateScreenAndWait(uint32 shouldBeAtMsec) {
Common::Event ev;
- g_system->updateScreen();
- g_system->delayMillis(msec);
+ uint32 msecPos = g_system->getMillis() - _transitionStartTime;
+
while (g_system->getEventManager()->pollEvent(ev)) {} // discard all events
+
+ if (shouldBeAtMsec > msecPos) {
+ // only update screen, if we are not behind schedule
+ g_system->updateScreen();
+ // and if still too early, delay those milliseconds
+ msecPos = g_system->getMillis() - _transitionStartTime;
+ if (shouldBeAtMsec > msecPos)
+ g_system->delayMillis(shouldBeAtMsec - msecPos);
+ }
}
// will translate a number and return corresponding translationEntry
@@ -191,6 +200,7 @@ void GfxTransitions::doTransition(int16 number, bool blackoutFlag) {
setNewPalette(blackoutFlag);
}
+ _transitionStartTime = g_system->getMillis();
switch (number) {
case SCI_TRANSITIONS_VERTICALROLL_FROMCENTER:
verticalRollFromCenter(blackoutFlag);
@@ -321,6 +331,7 @@ void GfxTransitions::fadeIn() {
void GfxTransitions::pixelation(bool blackoutFlag) {
uint16 mask = 0x40, stepNr = 0;
Common::Rect pixelRect;
+ uint32 msecCount = 0;
do {
mask = (mask & 1) ? (mask >> 1) ^ 0xB400 : mask >> 1;
@@ -332,7 +343,8 @@ void GfxTransitions::pixelation(bool blackoutFlag) {
if (!pixelRect.isEmpty())
copyRectToScreen(pixelRect, blackoutFlag);
if ((stepNr & 0x3FF) == 0) {
- updateScreenAndWait(5);
+ msecCount += 9;
+ updateScreenAndWait(msecCount);
}
stepNr++;
} while (mask != 0x40);
@@ -343,6 +355,7 @@ void GfxTransitions::pixelation(bool blackoutFlag) {
void GfxTransitions::blocks(bool blackoutFlag) {
uint16 mask = 0x40, stepNr = 0;
Common::Rect blockRect;
+ uint32 msecCount = 0;
do {
mask = (mask & 1) ? (mask >> 1) ^ 0x240 : mask >> 1;
@@ -354,7 +367,8 @@ void GfxTransitions::blocks(bool blackoutFlag) {
if (!blockRect.isEmpty())
copyRectToScreen(blockRect, blackoutFlag);
if ((stepNr & 7) == 0) {
- updateScreenAndWait(4);
+ msecCount += 5;
+ updateScreenAndWait(msecCount);
}
stepNr++;
} while (mask != 0x40);
@@ -365,6 +379,7 @@ void GfxTransitions::blocks(bool blackoutFlag) {
void GfxTransitions::straight(int16 number, bool blackoutFlag) {
int16 stepNr = 0;
Common::Rect newScreenRect = _picRect;
+ uint32 msecCount = 0;
switch (number) {
case SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT:
@@ -372,7 +387,8 @@ void GfxTransitions::straight(int16 number, bool blackoutFlag) {
while (newScreenRect.left >= _picRect.left) {
copyRectToScreen(newScreenRect, blackoutFlag);
if ((stepNr & 1) == 0) {
- updateScreenAndWait(1);
+ msecCount += 2;
+ updateScreenAndWait(msecCount);
}
stepNr++;
newScreenRect.translate(-1, 0);
@@ -384,7 +400,8 @@ void GfxTransitions::straight(int16 number, bool blackoutFlag) {
while (newScreenRect.right <= _picRect.right) {
copyRectToScreen(newScreenRect, blackoutFlag);
if ((stepNr & 1) == 0) {
- updateScreenAndWait(1);
+ msecCount += 2;
+ updateScreenAndWait(msecCount);
}
stepNr++;
newScreenRect.translate(1, 0);
@@ -395,7 +412,8 @@ void GfxTransitions::straight(int16 number, bool blackoutFlag) {
newScreenRect.top = newScreenRect.bottom - 1;
while (newScreenRect.top >= _picRect.top) {
copyRectToScreen(newScreenRect, blackoutFlag);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
stepNr++;
newScreenRect.translate(0, -1);
}
@@ -405,7 +423,8 @@ void GfxTransitions::straight(int16 number, bool blackoutFlag) {
newScreenRect.bottom = newScreenRect.top + 1;
while (newScreenRect.bottom <= _picRect.bottom) {
copyRectToScreen(newScreenRect, blackoutFlag);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
stepNr++;
newScreenRect.translate(0, 1);
}
@@ -434,6 +453,7 @@ void GfxTransitions::scroll(int16 number) {
Common::Rect oldScreenRect = _picRect;
Common::Rect newMoveRect = _picRect;
Common::Rect newScreenRect = _picRect;
+ uint32 msecCount = 0;
_screen->copyFromScreen(_oldScreen);
screenWidth = _screen->getDisplayWidth(); screenHeight = _screen->getDisplayHeight();
@@ -449,7 +469,8 @@ void GfxTransitions::scroll(int16 number) {
newScreenRect.right++; newMoveRect.left--;
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
if ((stepNr & 1) == 0) {
- updateScreenAndWait(1);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
stepNr++;
}
@@ -470,7 +491,8 @@ void GfxTransitions::scroll(int16 number) {
newScreenRect.left--;
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
if ((stepNr & 1) == 0) {
- updateScreenAndWait(1);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
stepNr++;
}
@@ -491,7 +513,8 @@ void GfxTransitions::scroll(int16 number) {
scrollCopyOldToScreen(oldScreenRect, _picRect.left, _picRect.top);
newScreenRect.bottom++; newMoveRect.top--;
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
break;
@@ -503,7 +526,8 @@ void GfxTransitions::scroll(int16 number) {
scrollCopyOldToScreen(oldScreenRect, oldMoveRect.left, oldMoveRect.top);
newScreenRect.top--;
_screen->copyRectToScreen(newScreenRect, _picRect.left, _picRect.top);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
break;
}
@@ -514,6 +538,7 @@ void GfxTransitions::scroll(int16 number) {
void GfxTransitions::verticalRollFromCenter(bool blackoutFlag) {
Common::Rect leftRect = Common::Rect(_picRect.left + (_picRect.width() / 2) -1, _picRect.top, _picRect.left + (_picRect.width() / 2), _picRect.bottom);
Common::Rect rightRect = Common::Rect(leftRect.right, _picRect.top, leftRect.right + 1, _picRect.bottom);
+ uint32 msecCount = 0;
while ((leftRect.left >= _picRect.left) || (rightRect.right <= _picRect.right)) {
if (leftRect.left < _picRect.left)
@@ -522,7 +547,8 @@ void GfxTransitions::verticalRollFromCenter(bool blackoutFlag) {
rightRect.translate(-1, 0);
copyRectToScreen(leftRect, blackoutFlag); leftRect.translate(-1, 0);
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(1, 0);
- updateScreenAndWait(2);
+ msecCount += 3;
+ updateScreenAndWait(msecCount);
}
}
@@ -531,11 +557,13 @@ void GfxTransitions::verticalRollFromCenter(bool blackoutFlag) {
void GfxTransitions::verticalRollToCenter(bool blackoutFlag) {
Common::Rect leftRect = Common::Rect(_picRect.left, _picRect.top, _picRect.left + 1, _picRect.bottom);
Common::Rect rightRect = Common::Rect(_picRect.right - 1, _picRect.top, _picRect.right, _picRect.bottom);
+ uint32 msecCount = 0;
while (leftRect.left < rightRect.right) {
copyRectToScreen(leftRect, blackoutFlag); leftRect.translate(1, 0);
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(-1, 0);
- updateScreenAndWait(2);
+ msecCount += 3;
+ updateScreenAndWait(msecCount);
}
}
@@ -544,6 +572,7 @@ void GfxTransitions::verticalRollToCenter(bool blackoutFlag) {
void GfxTransitions::horizontalRollFromCenter(bool blackoutFlag) {
Common::Rect upperRect = Common::Rect(_picRect.left, _picRect.top + (_picRect.height() / 2) - 1, _picRect.right, _picRect.top + (_picRect.height() / 2));
Common::Rect lowerRect = Common::Rect(upperRect.left, upperRect.bottom, upperRect.right, upperRect.bottom + 1);
+ uint32 msecCount = 0;
while ((upperRect.top >= _picRect.top) || (lowerRect.bottom <= _picRect.bottom)) {
if (upperRect.top < _picRect.top)
@@ -552,7 +581,8 @@ void GfxTransitions::horizontalRollFromCenter(bool blackoutFlag) {
lowerRect.translate(0, -1);
copyRectToScreen(upperRect, blackoutFlag); upperRect.translate(0, -1);
copyRectToScreen(lowerRect, blackoutFlag); lowerRect.translate(0, 1);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
}
@@ -561,11 +591,13 @@ void GfxTransitions::horizontalRollFromCenter(bool blackoutFlag) {
void GfxTransitions::horizontalRollToCenter(bool blackoutFlag) {
Common::Rect upperRect = Common::Rect(_picRect.left, _picRect.top, _picRect.right, _picRect.top + 1);
Common::Rect lowerRect = Common::Rect(upperRect.left, _picRect.bottom - 1, upperRect.right, _picRect.bottom);
+ uint32 msecCount = 0;
while (upperRect.top < lowerRect.bottom) {
copyRectToScreen(upperRect, blackoutFlag); upperRect.translate(0, 1);
copyRectToScreen(lowerRect, blackoutFlag); lowerRect.translate(0, -1);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
}
@@ -577,6 +609,7 @@ void GfxTransitions::diagonalRollFromCenter(bool blackoutFlag) {
Common::Rect lowerRect(upperRect.left, upperRect.top, upperRect.right, upperRect.bottom);
Common::Rect leftRect(upperRect.left, upperRect.top, upperRect.left + 1, lowerRect.bottom);
Common::Rect rightRect(upperRect.right, upperRect.top, upperRect.right + 1, lowerRect.bottom);
+ uint32 msecCount = 0;
while ((upperRect.top >= _picRect.top) || (lowerRect.bottom <= _picRect.bottom)) {
if (upperRect.top < _picRect.top) {
@@ -595,7 +628,8 @@ void GfxTransitions::diagonalRollFromCenter(bool blackoutFlag) {
copyRectToScreen(lowerRect, blackoutFlag); lowerRect.translate(0, 1); lowerRect.left--; lowerRect.right++;
copyRectToScreen(leftRect, blackoutFlag); leftRect.translate(-1, 0); leftRect.top--; leftRect.bottom++;
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(1, 0); rightRect.top--; rightRect.bottom++;
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
}
@@ -606,13 +640,15 @@ void GfxTransitions::diagonalRollToCenter(bool blackoutFlag) {
Common::Rect lowerRect(_picRect.left, _picRect.bottom - 1, _picRect.right, _picRect.bottom);
Common::Rect leftRect(_picRect.left, _picRect.top, _picRect.left + 1, _picRect.bottom);
Common::Rect rightRect(_picRect.right - 1, _picRect.top, _picRect.right, _picRect.bottom);
+ uint32 msecCount = 0;
while (upperRect.top < lowerRect.bottom) {
copyRectToScreen(upperRect, blackoutFlag); upperRect.translate(0, 1); upperRect.left++; upperRect.right--;
copyRectToScreen(lowerRect, blackoutFlag); lowerRect.translate(0, -1); lowerRect.left++; lowerRect.right--;
copyRectToScreen(leftRect, blackoutFlag); leftRect.translate(1, 0);
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(-1, 0);
- updateScreenAndWait(3);
+ msecCount += 4;
+ updateScreenAndWait(msecCount);
}
}
diff --git a/engines/sci/graphics/transitions.h b/engines/sci/graphics/transitions.h
index 233638ffda..fbfd715b15 100644
--- a/engines/sci/graphics/transitions.h
+++ b/engines/sci/graphics/transitions.h
@@ -91,7 +91,7 @@ private:
void horizontalRollToCenter(bool blackoutFlag);
void diagonalRollFromCenter(bool blackoutFlag);
void diagonalRollToCenter(bool blackoutFlag);
- void updateScreenAndWait(int msec);
+ void updateScreenAndWait(uint32 shouldBeAtMsec);
GfxScreen *_screen;
GfxPalette *_palette;
@@ -102,6 +102,8 @@ private:
bool _blackoutFlag;
Common::Rect _picRect;
byte *_oldScreen; // buffer for saving current active screen data to, has dimenions of _screen->_displayScreen
+
+ uint32 _transitionStartTime; // when the current transition started in milliseconds
};
} // End of namespace Sci
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 03:01:31 +0000