scummvm/engines/sci/graphics/transitions.cpp
Filippos Karapetis 7da29858e7 SCI: Fix the order of diagonal roll transitions in the old lookup table
This fixes several inverted transitions (like in SQ3, ICEMAN, Hoyle 1 etc) - bug #3485194
2012-02-13 12:06:35 +02:00

660 lines
24 KiB
C++

/* 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/events.h"
#include "common/system.h"
#include "graphics/palette.h"
#include "graphics/surface.h"
#include "sci/sci.h"
#include "sci/engine/state.h"
#include "sci/graphics/screen.h"
#include "sci/graphics/palette.h"
#include "sci/graphics/transitions.h"
namespace Sci {
//#define DISABLE_TRANSITIONS // uncomment to disable room transitions (for development only! helps in testing games quickly)
GfxTransitions::GfxTransitions(GfxScreen *screen, GfxPalette *palette)
: _screen(screen), _palette(palette) {
init();
}
GfxTransitions::~GfxTransitions() {
delete[] _oldScreen;
}
// This table contains a mapping between oldIDs (prior SCI1LATE) and newIDs
static const GfxTransitionTranslateEntry oldTransitionIDs[] = {
{ 0, SCI_TRANSITIONS_VERTICALROLL_FROMCENTER, false },
{ 1, SCI_TRANSITIONS_HORIZONTALROLL_FROMCENTER, false },
{ 2, SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT, false },
{ 3, SCI_TRANSITIONS_STRAIGHT_FROM_LEFT, false },
{ 4, SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM, false },
{ 5, SCI_TRANSITIONS_STRAIGHT_FROM_TOP, false },
{ 6, SCI_TRANSITIONS_DIAGONALROLL_TOCENTER, false },
{ 7, SCI_TRANSITIONS_DIAGONALROLL_FROMCENTER, false },
{ 8, SCI_TRANSITIONS_BLOCKS, false },
{ 9, SCI_TRANSITIONS_VERTICALROLL_TOCENTER, false },
{ 10, SCI_TRANSITIONS_HORIZONTALROLL_TOCENTER, false },
{ 11, SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT, true },
{ 12, SCI_TRANSITIONS_STRAIGHT_FROM_LEFT, true },
{ 13, SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM, true },
{ 14, SCI_TRANSITIONS_STRAIGHT_FROM_TOP, true },
{ 15, SCI_TRANSITIONS_DIAGONALROLL_FROMCENTER, true },
{ 16, SCI_TRANSITIONS_DIAGONALROLL_TOCENTER, true },
{ 17, SCI_TRANSITIONS_BLOCKS, true },
{ 18, SCI_TRANSITIONS_PIXELATION, false },
{ 27, SCI_TRANSITIONS_PIXELATION , true },
{ 30, SCI_TRANSITIONS_FADEPALETTE, false },
{ 40, SCI_TRANSITIONS_SCROLL_RIGHT, false },
{ 41, SCI_TRANSITIONS_SCROLL_LEFT, false },
{ 42, SCI_TRANSITIONS_SCROLL_UP, false },
{ 43, SCI_TRANSITIONS_SCROLL_DOWN, false },
{ 100, SCI_TRANSITIONS_NONE, false },
{ 255, 255, false }
};
// this table defines the blackout-transition that needs to be done prior doing the actual transition
static const GfxTransitionTranslateEntry blackoutTransitionIDs[] = {
{ SCI_TRANSITIONS_VERTICALROLL_FROMCENTER, SCI_TRANSITIONS_VERTICALROLL_TOCENTER, true },
{ SCI_TRANSITIONS_HORIZONTALROLL_FROMCENTER, SCI_TRANSITIONS_HORIZONTALROLL_TOCENTER, true },
{ SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT, SCI_TRANSITIONS_STRAIGHT_FROM_LEFT, true },
{ SCI_TRANSITIONS_STRAIGHT_FROM_LEFT, SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT, true },
{ SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM, SCI_TRANSITIONS_STRAIGHT_FROM_TOP, true },
{ SCI_TRANSITIONS_STRAIGHT_FROM_TOP, SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM, true },
{ SCI_TRANSITIONS_DIAGONALROLL_FROMCENTER, SCI_TRANSITIONS_DIAGONALROLL_TOCENTER, true },
{ SCI_TRANSITIONS_DIAGONALROLL_TOCENTER, SCI_TRANSITIONS_DIAGONALROLL_FROMCENTER, true },
{ SCI_TRANSITIONS_BLOCKS, SCI_TRANSITIONS_BLOCKS, true },
{ SCI_TRANSITIONS_PIXELATION, SCI_TRANSITIONS_PIXELATION, true },
{ SCI_TRANSITIONS_FADEPALETTE, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_SCROLL_RIGHT, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_SCROLL_LEFT, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_SCROLL_UP, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_SCROLL_DOWN, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_NONE_LONGBOW, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_NONE, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_VERTICALROLL_TOCENTER, SCI_TRANSITIONS_NONE, true },
{ SCI_TRANSITIONS_HORIZONTALROLL_TOCENTER, SCI_TRANSITIONS_NONE, true },
{ 255, 255, true }
};
void GfxTransitions::init() {
_oldScreen = new byte[_screen->getDisplayHeight() * _screen->getDisplayWidth()];
if (getSciVersion() >= SCI_VERSION_1_LATE)
_translationTable = NULL;
else
_translationTable = oldTransitionIDs;
// setup default transition
_number = SCI_TRANSITIONS_HORIZONTALROLL_FROMCENTER;
_blackoutFlag = false;
}
void GfxTransitions::setup(int16 number, bool blackoutFlag) {
if (number != -1) {
#ifndef DISABLE_TRANSITIONS
_number = number;
#else
_number = SCI_TRANSITIONS_NONE;
#endif
_blackoutFlag = blackoutFlag;
debugC(kDebugLevelGraphics, "Transition %d, blackout %d", number, blackoutFlag);
}
}
bool GfxTransitions::doCreateFrame(uint32 shouldBeAtMsec) {
uint32 msecPos = g_system->getMillis() - _transitionStartTime;
if (shouldBeAtMsec > msecPos)
return true;
return false;
}
void GfxTransitions::updateScreenAndWait(uint32 shouldBeAtMsec) {
Common::Event ev;
while (g_system->getEventManager()->pollEvent(ev)) {} // discard all events
g_system->updateScreen();
// if we have still some time left, delay accordingly
uint32 msecPos = g_system->getMillis() - _transitionStartTime;
if (shouldBeAtMsec > msecPos)
g_system->delayMillis(shouldBeAtMsec - msecPos);
}
// will translate a number and return corresponding translationEntry
const GfxTransitionTranslateEntry *GfxTransitions::translateNumber (int16 number, const GfxTransitionTranslateEntry *tablePtr) {
while (1) {
if (tablePtr->orgId == 255)
return NULL;
if (tablePtr->orgId == number)
return tablePtr;
tablePtr++;
}
}
void GfxTransitions::doit(Common::Rect picRect) {
const GfxTransitionTranslateEntry *translationEntry = _translationTable;
_picRect = picRect;
if (_translationTable) {
// We need to translate the ID
translationEntry = translateNumber(_number, _translationTable);
if (translationEntry) {
_number = translationEntry->newId;
_blackoutFlag = translationEntry->blackoutFlag;
} else {
warning("Transitions: old ID %d not supported", _number);
_number = SCI_TRANSITIONS_NONE;
_blackoutFlag = false;
}
}
if (_blackoutFlag) {
// We need to find out what transition we are supposed to use for
// blackout
translationEntry = translateNumber(_number, blackoutTransitionIDs);
if (translationEntry) {
doTransition(translationEntry->newId, true);
} else {
warning("Transitions: ID %d not listed in blackoutTransitionIDs", _number);
}
}
_palette->palVaryPrepareForTransition();
// Now we do the actual transition to the new screen
doTransition(_number, false);
_screen->_picNotValid = 0;
}
// This may get called twice, if blackoutFlag is set. It will get once called
// with blackoutFlag set and another time with no blackoutFlag.
void GfxTransitions::doTransition(int16 number, bool blackoutFlag) {
if (number != SCI_TRANSITIONS_FADEPALETTE) {
setNewPalette(blackoutFlag);
}
_transitionStartTime = g_system->getMillis();
switch (number) {
case SCI_TRANSITIONS_VERTICALROLL_FROMCENTER:
verticalRollFromCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_VERTICALROLL_TOCENTER:
verticalRollToCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_HORIZONTALROLL_FROMCENTER:
horizontalRollFromCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_HORIZONTALROLL_TOCENTER:
horizontalRollToCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_DIAGONALROLL_TOCENTER:
diagonalRollToCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_DIAGONALROLL_FROMCENTER:
diagonalRollFromCenter(blackoutFlag);
break;
case SCI_TRANSITIONS_STRAIGHT_FROM_RIGHT:
case SCI_TRANSITIONS_STRAIGHT_FROM_LEFT:
case SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM:
case SCI_TRANSITIONS_STRAIGHT_FROM_TOP:
straight(number, blackoutFlag);
break;
case SCI_TRANSITIONS_PIXELATION:
pixelation(blackoutFlag);
break;
case SCI_TRANSITIONS_BLOCKS:
blocks(blackoutFlag);
break;
case SCI_TRANSITIONS_FADEPALETTE:
if (!blackoutFlag) {
fadeOut(); setNewScreen(blackoutFlag); fadeIn();
}
break;
case SCI_TRANSITIONS_SCROLL_RIGHT:
case SCI_TRANSITIONS_SCROLL_LEFT:
case SCI_TRANSITIONS_SCROLL_UP:
case SCI_TRANSITIONS_SCROLL_DOWN:
scroll(number);
break;
case SCI_TRANSITIONS_NONE_LONGBOW:
case SCI_TRANSITIONS_NONE:
setNewScreen(blackoutFlag);
break;
default:
warning("Transitions: ID %d not implemented", number);
setNewScreen(blackoutFlag);
}
}
void GfxTransitions::setNewPalette(bool blackoutFlag) {
if (!blackoutFlag)
_palette->setOnScreen();
}
void GfxTransitions::setNewScreen(bool blackoutFlag) {
if (!blackoutFlag) {
_screen->copyRectToScreen(_picRect);
g_system->updateScreen();
}
}
void GfxTransitions::copyRectToScreen(const Common::Rect rect, bool blackoutFlag) {
if (!blackoutFlag) {
_screen->copyRectToScreen(rect);
} else {
Graphics::Surface *surface = g_system->lockScreen();
if (!_screen->getUpscaledHires()) {
surface->fillRect(rect, 0);
} else {
Common::Rect upscaledRect = rect;
_screen->adjustToUpscaledCoordinates(upscaledRect.top, upscaledRect.left);
_screen->adjustToUpscaledCoordinates(upscaledRect.bottom, upscaledRect.right);
surface->fillRect(upscaledRect, 0);
}
g_system->unlockScreen();
}
}
// Note: don't do too many steps in here, otherwise cpu will crap out because of
// the load
void GfxTransitions::fadeOut() {
byte oldPalette[3 * 256], workPalette[3 * 256];
int16 stepNr, colorNr;
// Sierra did not fade in/out color 255 for sci1.1, but they used it in
// several pictures (e.g. qfg3 demo/intro), so the fading looked weird
int16 tillColorNr = getSciVersion() >= SCI_VERSION_1_1 ? 255 : 254;
g_system->getPaletteManager()->grabPalette(oldPalette, 0, 256);
for (stepNr = 100; stepNr >= 0; stepNr -= 10) {
for (colorNr = 1; colorNr <= tillColorNr; colorNr++) {
if (_palette->colorIsFromMacClut(colorNr)) {
workPalette[colorNr * 3 + 0] = oldPalette[colorNr * 3];
workPalette[colorNr * 3 + 1] = oldPalette[colorNr * 3 + 1];
workPalette[colorNr * 3 + 2] = oldPalette[colorNr * 3 + 2];
} else {
workPalette[colorNr * 3 + 0] = oldPalette[colorNr * 3] * stepNr / 100;
workPalette[colorNr * 3 + 1] = oldPalette[colorNr * 3 + 1] * stepNr / 100;
workPalette[colorNr * 3 + 2] = oldPalette[colorNr * 3 + 2] * stepNr / 100;
}
}
g_system->getPaletteManager()->setPalette(workPalette + 3, 1, tillColorNr);
g_sci->getEngineState()->wait(2);
}
}
// Note: don't do too many steps in here, otherwise cpu will crap out because of
// the load
void GfxTransitions::fadeIn() {
int16 stepNr;
// Sierra did not fade in/out color 255 for sci1.1, but they used it in
// several pictures (e.g. qfg3 demo/intro), so the fading looked weird
int16 tillColorNr = getSciVersion() >= SCI_VERSION_1_1 ? 255 : 254;
for (stepNr = 0; stepNr <= 100; stepNr += 10) {
_palette->kernelSetIntensity(1, tillColorNr + 1, stepNr, true);
g_sci->getEngineState()->wait(2);
}
}
// Pixelates the new picture over the old one - works against the whole screen.
// TODO: it seems this needs to get applied on _picRect only if possible
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;
if (mask >= _screen->getWidth() * _screen->getHeight())
continue;
pixelRect.left = mask % _screen->getWidth(); pixelRect.right = pixelRect.left + 1;
pixelRect.top = mask / _screen->getWidth(); pixelRect.bottom = pixelRect.top + 1;
pixelRect.clip(_picRect);
if (!pixelRect.isEmpty())
copyRectToScreen(pixelRect, blackoutFlag);
if ((stepNr & 0x3FF) == 0) {
msecCount += 9;
updateScreenAndWait(msecCount);
}
stepNr++;
} while (mask != 0x40);
}
// Like pixelation but uses 8x8 blocks - works against the whole screen.
// TODO: it seems this needs to get applied on _picRect only if possible
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;
if (mask >= 40 * 25)
continue;
blockRect.left = (mask % 40) << 3; blockRect.right = blockRect.left + 8;
blockRect.top = (mask / 40) << 3; blockRect.bottom = blockRect.top + 8;
blockRect.clip(_picRect);
if (!blockRect.isEmpty())
copyRectToScreen(blockRect, blackoutFlag);
if ((stepNr & 7) == 0) {
msecCount += 5;
updateScreenAndWait(msecCount);
}
stepNr++;
} while (mask != 0x40);
}
// Directly shows new screen starting up/down/left/right and going to the
// opposite direction - works on _picRect area only
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:
newScreenRect.left = newScreenRect.right - 1;
while (newScreenRect.left >= _picRect.left) {
copyRectToScreen(newScreenRect, blackoutFlag);
if ((stepNr & 1) == 0) {
msecCount += 2;
updateScreenAndWait(msecCount);
}
stepNr++;
newScreenRect.translate(-1, 0);
}
break;
case SCI_TRANSITIONS_STRAIGHT_FROM_LEFT:
newScreenRect.right = newScreenRect.left + 1;
while (newScreenRect.right <= _picRect.right) {
copyRectToScreen(newScreenRect, blackoutFlag);
if ((stepNr & 1) == 0) {
msecCount += 2;
updateScreenAndWait(msecCount);
}
stepNr++;
newScreenRect.translate(1, 0);
}
break;
case SCI_TRANSITIONS_STRAIGHT_FROM_BOTTOM:
newScreenRect.top = newScreenRect.bottom - 1;
while (newScreenRect.top >= _picRect.top) {
copyRectToScreen(newScreenRect, blackoutFlag);
msecCount += 4;
updateScreenAndWait(msecCount);
stepNr++;
newScreenRect.translate(0, -1);
}
break;
case SCI_TRANSITIONS_STRAIGHT_FROM_TOP:
newScreenRect.bottom = newScreenRect.top + 1;
while (newScreenRect.bottom <= _picRect.bottom) {
copyRectToScreen(newScreenRect, blackoutFlag);
msecCount += 4;
updateScreenAndWait(msecCount);
stepNr++;
newScreenRect.translate(0, 1);
}
break;
}
}
void GfxTransitions::scrollCopyOldToScreen(Common::Rect screenRect, int16 x, int16 y) {
byte *oldScreenPtr = _oldScreen;
int16 screenWidth = _screen->getDisplayWidth();
if (_screen->getUpscaledHires()) {
_screen->adjustToUpscaledCoordinates(screenRect.top, screenRect.left);
_screen->adjustToUpscaledCoordinates(screenRect.bottom, screenRect.right);
_screen->adjustToUpscaledCoordinates(y, x);
}
oldScreenPtr += screenRect.left + screenRect.top * screenWidth;
g_system->copyRectToScreen(oldScreenPtr, screenWidth, x, y, screenRect.width(), screenRect.height());
}
// Scroll old screen (up/down/left/right) and insert new screen that way - works
// on _picRect area only.
void GfxTransitions::scroll(int16 number) {
int16 stepNr = 0;
Common::Rect oldMoveRect = _picRect;
Common::Rect oldScreenRect = _picRect;
Common::Rect newMoveRect = _picRect;
Common::Rect newScreenRect = _picRect;
uint32 msecCount = 0;
_screen->copyFromScreen(_oldScreen);
switch (number) {
case SCI_TRANSITIONS_SCROLL_LEFT:
newScreenRect.right = newScreenRect.left;
newMoveRect.left = newMoveRect.right;
while (oldMoveRect.left < oldMoveRect.right) {
oldMoveRect.right--; oldScreenRect.left++;
newScreenRect.right++; newMoveRect.left--;
if ((stepNr & 1) == 0) {
msecCount += 5;
if (doCreateFrame(msecCount)) {
if (oldMoveRect.right > oldMoveRect.left)
scrollCopyOldToScreen(oldScreenRect, oldMoveRect.left, oldMoveRect.top);
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
updateScreenAndWait(msecCount);
}
}
stepNr++;
}
break;
case SCI_TRANSITIONS_SCROLL_RIGHT:
newScreenRect.left = newScreenRect.right;
while (oldMoveRect.left < oldMoveRect.right) {
oldMoveRect.left++; oldScreenRect.right--;
newScreenRect.left--;
if ((stepNr & 1) == 0) {
msecCount += 5;
if (doCreateFrame(msecCount)) {
if (oldMoveRect.right > oldMoveRect.left)
scrollCopyOldToScreen(oldScreenRect, oldMoveRect.left, oldMoveRect.top);
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
updateScreenAndWait(msecCount);
}
}
stepNr++;
}
break;
case SCI_TRANSITIONS_SCROLL_UP:
newScreenRect.bottom = newScreenRect.top;
newMoveRect.top = newMoveRect.bottom;
while (oldMoveRect.top < oldMoveRect.bottom) {
oldMoveRect.top++; oldScreenRect.top++;
newScreenRect.bottom++; newMoveRect.top--;
msecCount += 5;
if (doCreateFrame(msecCount)) {
if (oldMoveRect.top < oldMoveRect.bottom)
scrollCopyOldToScreen(oldScreenRect, _picRect.left, _picRect.top);
_screen->copyRectToScreen(newScreenRect, newMoveRect.left, newMoveRect.top);
updateScreenAndWait(msecCount);
}
}
break;
case SCI_TRANSITIONS_SCROLL_DOWN:
newScreenRect.top = newScreenRect.bottom;
while (oldMoveRect.top < oldMoveRect.bottom) {
oldMoveRect.top++; oldScreenRect.bottom--;
newScreenRect.top--;
msecCount += 5;
if (doCreateFrame(msecCount)) {
if (oldMoveRect.top < oldMoveRect.bottom)
scrollCopyOldToScreen(oldScreenRect, oldMoveRect.left, oldMoveRect.top);
_screen->copyRectToScreen(newScreenRect, _picRect.left, _picRect.top);
updateScreenAndWait(msecCount);
}
}
break;
}
// Copy over final position just in case
_screen->copyRectToScreen(newScreenRect);
g_system->updateScreen();
}
// Vertically displays new screen starting from center - works on _picRect area
// only
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)
leftRect.translate(1, 0);
if (rightRect.right > _picRect.right)
rightRect.translate(-1, 0);
copyRectToScreen(leftRect, blackoutFlag); leftRect.translate(-1, 0);
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(1, 0);
msecCount += 3;
updateScreenAndWait(msecCount);
}
}
// Vertically displays new screen starting from edges - works on _picRect area
// only
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);
msecCount += 3;
updateScreenAndWait(msecCount);
}
}
// Horizontally displays new screen starting from center - works on _picRect
// area only
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)
upperRect.translate(0, 1);
if (lowerRect.bottom > _picRect.bottom)
lowerRect.translate(0, -1);
copyRectToScreen(upperRect, blackoutFlag); upperRect.translate(0, -1);
copyRectToScreen(lowerRect, blackoutFlag); lowerRect.translate(0, 1);
msecCount += 4;
updateScreenAndWait(msecCount);
}
}
// Horizontally displays new screen starting from upper and lower edge - works
// on _picRect area only
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);
msecCount += 4;
updateScreenAndWait(msecCount);
}
}
// Diagonally displays new screen starting from center - works on _picRect area
// only. Assumes that height of rect is larger than width.
void GfxTransitions::diagonalRollFromCenter(bool blackoutFlag) {
int16 halfHeight = _picRect.height() / 2;
Common::Rect upperRect(_picRect.left + halfHeight - 2, _picRect.top + halfHeight, _picRect.right - halfHeight + 1, _picRect.top + halfHeight + 1);
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) {
upperRect.translate(0, 1); leftRect.top++; rightRect.top++;
}
if (lowerRect.bottom > _picRect.bottom) {
lowerRect.translate(0, -1); leftRect.bottom--; rightRect.bottom--;
}
if (leftRect.left < _picRect.left) {
leftRect.translate(1, 0); upperRect.left++; lowerRect.left++;
}
if (rightRect.right > _picRect.right) {
rightRect.translate(-1, 0); upperRect.right--; lowerRect.right--;
}
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); leftRect.top--; leftRect.bottom++;
copyRectToScreen(rightRect, blackoutFlag); rightRect.translate(1, 0); rightRect.top--; rightRect.bottom++;
msecCount += 4;
updateScreenAndWait(msecCount);
}
}
// Diagonally displays new screen starting from edges - works on _picRect area
// only. Assumes that height of rect is larger than width.
void GfxTransitions::diagonalRollToCenter(bool blackoutFlag) {
Common::Rect upperRect(_picRect.left, _picRect.top, _picRect.right, _picRect.top + 1);
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);
msecCount += 4;
updateScreenAndWait(msecCount);
}
}
} // End of namespace Sci