/**
* Translates a raw image resource into a graphics surface. The caller is then responsible
* for managing and destroying the surface when done with it
*
* @imgData Raw image resource
* @size Size of the resource
*/
GfxSurface surfaceFromRes(const byte *imgData) {
Rect r(0, 0, READ_LE_UINT16(imgData), READ_LE_UINT16(imgData + 2));
GfxSurface s;
s.create(r.width(), r.height());
s._centroid.x = READ_LE_UINT16(imgData + 4);
s._centroid.y = READ_LE_UINT16(imgData + 6);
s._transColor = *(imgData + 8);
bool rleEncoded = (imgData[9] & 2) != 0;
const byte *srcP = imgData + 10;
Graphics::Surface destSurface = s.lockSurface();
byte *destP = (byte *)destSurface.getBasePtr(0, 0);
if (!rleEncoded) {
Common::copy(srcP, srcP + (r.width() * r.height()), destP);
} else {
Common::set_to(destP, destP + (r.width() * r.height()), s._transColor);
for (int yp = 0; yp < r.height(); ++yp) {
int width = r.width();
destP = (byte *)destSurface.getBasePtr(0, yp);
while (width > 0) {
uint8 controlVal = *srcP++;
if ((controlVal & 0x80) == 0) {
// Copy specified number of bytes
Common::copy(srcP, srcP + controlVal, destP);
width -= controlVal;
srcP += controlVal;
destP += controlVal;
} else if ((controlVal & 0x40) == 0) {
// Skip a specified number of output pixels
destP += controlVal & 0x3f;
width -= controlVal & 0x3f;
} else {
// Copy a specified pixel a given number of times
controlVal &= 0x3f;
int pixel = *srcP++;
Common::set_to(destP, destP + controlVal, pixel);
destP += controlVal;
width -= controlVal;
}
}
assert(width == 0);
}
}
s.unlockSurface();
return s;
}
/**
* Scales a passed surface, creating a new surface with the result
* @param srcImage Source image to scale
* @param NewWidth New width for scaled image
* @param NewHeight New height for scaled image
* @remarks Caller is responsible for freeing the returned surface
*/
static GfxSurface ResizeSurface(GfxSurface &src, int xSize, int ySize, int transIndex) {
GfxSurface s;
s.create(xSize, ySize);
Graphics::Surface srcImage = src.lockSurface();
Graphics::Surface destImage = s.lockSurface();
int *horizUsage = scaleLine(xSize, srcImage.w);
int *vertUsage = scaleLine(ySize, srcImage.h);
// Loop to create scaled version
for (int yp = 0; yp < ySize; ++yp) {
byte *destP = (byte *)destImage.getBasePtr(0, yp);
if (vertUsage[yp] == -1) {
Common::set_to(destP, destP + xSize, transIndex);
} else {
const byte *srcP = (const byte *)srcImage.getBasePtr(0, vertUsage[yp]);
for (int xp = 0; xp < xSize; ++xp) {
if (horizUsage[xp] != -1) {
const byte *tempSrcP = srcP + horizUsage[xp];
*destP++ = *tempSrcP++;
} else {
// Pixel overrun at the end of the line
*destP++ = transIndex;
}
}
}
}
// Unlock surfaces
src.unlockSurface();
s.unlockSurface();
// Delete arrays and return surface
delete[] horizUsage;
delete[] vertUsage;
return s;
}
void EventsClass::pushCursor(CursorType cursorType) {
const byte *cursor;
bool delFlag = true;
uint size;
switch (cursorType) {
case CURSOR_NONE:
// No cursor
cursor = _resourceManager->getSubResource(4, 1, 6, &size);
break;
case CURSOR_LOOK:
// Look cursor
cursor = _resourceManager->getSubResource(4, 1, 5, &size);
break;
case CURSOR_USE:
// Use cursor
cursor = _resourceManager->getSubResource(4, 1, 4, &size);
break;
case CURSOR_TALK:
// Talk cursor
cursor = _resourceManager->getSubResource(4, 1, 3, &size);
break;
case CURSOR_ARROW:
// Arrow cursor
cursor = CURSOR_ARROW_DATA;
delFlag = false;
break;
case CURSOR_WALK:
default:
// Walk cursor
cursor = CURSOR_WALK_DATA;
delFlag = false;
break;
}
// Decode the cursor
GfxSurface s = surfaceFromRes(cursor);
Graphics::Surface surface = s.lockSurface();
const byte *cursorData = (const byte *)surface.getBasePtr(0, 0);
CursorMan.pushCursor(cursorData, surface.w, surface.h, s._centroid.x, s._centroid.y, s._transColor);
s.unlockSurface();
if (delFlag)
DEALLOCATE(cursor);
}
/**
* Copys an area from one GfxSurface to another
*/
void GfxSurface::copyFrom(GfxSurface &src, Rect srcBounds, Rect destBounds, Region *priorityRegion) {
GfxSurface srcImage;
if (srcBounds.isEmpty())
return;
if (srcBounds == src.getBounds())
srcImage = src;
else {
// Set the source image to be the subset specified by the source bounds
Graphics::Surface srcSurface = src.lockSurface();
srcImage.create(srcBounds.width(), srcBounds.height());
Graphics::Surface destSurface = srcImage.lockSurface();
const byte *srcP = (const byte *)srcSurface.getBasePtr(srcBounds.left, srcBounds.top);
byte *destP = (byte *)destSurface.pixels;
for (int yp = srcBounds.top; yp < srcBounds.bottom; ++yp, srcP += srcSurface.pitch, destP += destSurface.pitch) {
Common::copy(srcP, srcP + srcBounds.width(), destP);
}
srcImage.unlockSurface();
src.unlockSurface();
}
if ((destBounds.width() != srcBounds.width()) || (destBounds.height() != srcBounds.height()))
srcImage = ResizeSurface(srcImage, destBounds.width(), destBounds.height(), src._transColor);
Graphics::Surface srcSurface = srcImage.lockSurface();
Graphics::Surface destSurface = lockSurface();
// Adjust bounds to ensure destination will be on-screen
int srcX = 0, srcY = 0;
if (destBounds.left < 0) {
srcX = -destBounds.left;
destBounds.left = 0;
}
if (destBounds.top < 0) {
srcY = -destBounds.top;
destBounds.top = 0;
}
if (destBounds.right > destSurface.w)
destBounds.right = destSurface.w;
if (destBounds.bottom > destSurface.h)
destBounds.bottom = destSurface.h;
if (destBounds.isValidRect()) {
const byte *pSrc = (const byte *)srcSurface.getBasePtr(srcX, srcY);
byte *pDest = (byte *)destSurface.getBasePtr(destBounds.left, destBounds.top);
for (int y = 0; y < destBounds.height(); ++y, pSrc += srcSurface.pitch, pDest += destSurface.pitch) {
if (!priorityRegion && (src._transColor == -1))
Common::copy(pSrc, pSrc + destBounds.width(), pDest);
else {
const byte *tempSrc = pSrc;
byte *tempDest = pDest;
int xp = destBounds.left;
while (tempSrc < (pSrc + destBounds.width())) {
if (!priorityRegion || !priorityRegion->contains(Common::Point(
xp + _globals->_sceneManager._scene->_sceneBounds.left,
destBounds.top + y + _globals->_sceneManager._scene->_sceneBounds.top))) {
if (*tempSrc != src._transColor)
*tempDest = *tempSrc;
}
++tempSrc;
++tempDest;
++xp;
}
}
}
}
unlockSurface();
srcImage.unlockSurface();
}
/**
* Sets the specified cursor
*
* @cursorType Specified cursor number
*/
void EventsClass::setCursor(CursorType cursorType) {
if (cursorType == _lastCursor)
return;
_lastCursor = cursorType;
_globals->clearFlag(122);
CursorMan.showMouse(true);
const byte *cursor;
bool delFlag = true;
uint size;
switch (cursorType) {
case CURSOR_NONE:
// No cursor
_globals->setFlag(122);
if (_vm->getFeatures() & GF_DEMO) {
CursorMan.showMouse(false);
return;
}
cursor = _resourceManager->getSubResource(4, 1, 6, &size);
break;
case CURSOR_LOOK:
// Look cursor
cursor = _resourceManager->getSubResource(4, 1, 5, &size);
_currentCursor = CURSOR_LOOK;
break;
case CURSOR_USE:
// Use cursor
cursor = _resourceManager->getSubResource(4, 1, 4, &size);
_currentCursor = CURSOR_USE;
break;
case CURSOR_TALK:
// Talk cursor
cursor = _resourceManager->getSubResource(4, 1, 3, &size);
_currentCursor = CURSOR_TALK;
break;
case CURSOR_ARROW:
// Arrow cursor
cursor = CURSOR_ARROW_DATA;
delFlag = false;
break;
case CURSOR_WALK:
default:
// Walk cursor
cursor = CURSOR_WALK_DATA;
_currentCursor = CURSOR_WALK;
delFlag = false;
break;
}
// Decode the cursor
GfxSurface s = surfaceFromRes(cursor);
Graphics::Surface surface = s.lockSurface();
const byte *cursorData = (const byte *)surface.getBasePtr(0, 0);
CursorMan.replaceCursor(cursorData, surface.w, surface.h, s._centroid.x, s._centroid.y, s._transColor);
s.unlockSurface();
if (delFlag)
DEALLOCATE(cursor);
}
/**
* Sets the specified cursor
*
* @cursorType Specified cursor number
*/
void EventsClass::setCursor(CursorType cursorType) {
if (cursorType == _lastCursor)
return;
_lastCursor = cursorType;
g_globals->clearFlag(122);
CursorMan.showMouse(true);
const byte *cursor;
bool delFlag = true;
uint size;
bool questionEnabled = false;
switch (cursorType) {
case CURSOR_NONE:
// No cursor
g_globals->setFlag(122);
if ((g_vm->getGameID() != GType_Ringworld) || ((g_vm->getGameID() == GType_Ringworld) && (g_vm->getFeatures() & GF_DEMO))) {
CursorMan.showMouse(false);
return;
}
cursor = g_resourceManager->getSubResource(4, 1, 6, &size);
break;
case CURSOR_LOOK:
// Look cursor
if (g_vm->getGameID() == GType_BlueForce) {
cursor = g_resourceManager->getSubResource(1, 5, 3, &size);
} else if (g_vm->getGameID() == GType_Ringworld2) {
cursor = g_resourceManager->getSubResource(5, 1, 5, &size);
} else {
cursor = g_resourceManager->getSubResource(4, 1, 5, &size);
}
_currentCursor = CURSOR_LOOK;
break;
case CURSOR_USE:
// Use cursor
if (g_vm->getGameID() == GType_BlueForce) {
cursor = g_resourceManager->getSubResource(1, 5, 2, &size);
} else if (g_vm->getGameID() == GType_Ringworld2) {
cursor = g_resourceManager->getSubResource(5, 1, 4, &size);
} else {
cursor = g_resourceManager->getSubResource(4, 1, 4, &size);
}
_currentCursor = CURSOR_USE;
break;
case CURSOR_TALK:
// Talk cursor
if (g_vm->getGameID() == GType_BlueForce) {
cursor = g_resourceManager->getSubResource(1, 5, 4, &size);
} else if (g_vm->getGameID() == GType_Ringworld2) {
cursor = g_resourceManager->getSubResource(5, 1, 6, &size);
} else {
cursor = g_resourceManager->getSubResource(4, 1, 3, &size);
}
_currentCursor = CURSOR_TALK;
break;
case CURSOR_EXIT:
// Exit cursor (Blue Force)
assert(g_vm->getGameID() == GType_BlueForce);
cursor = g_resourceManager->getSubResource(1, 5, 7, &size);
_currentCursor = CURSOR_EXIT;
break;
case CURSOR_PRINTER:
// Printer cursor (Blue Force)
assert(g_vm->getGameID() == GType_BlueForce);
cursor = g_resourceManager->getSubResource(1, 7, 6, &size);
_currentCursor = CURSOR_PRINTER;
break;
case CURSOR_ARROW:
// Arrow cursor
cursor = CURSOR_ARROW_DATA;
delFlag = false;
break;
case CURSOR_WALK:
default:
switch (g_vm->getGameID()) {
case GType_BlueForce:
if (cursorType == CURSOR_WALK) {
cursor = g_resourceManager->getSubResource(1, 5, 1, &size);
} else {
// Inventory icon
cursor = g_resourceManager->getSubResource(10, ((int)cursorType - 1) / 20 + 1,
((int)cursorType - 1) % 20 + 1, &size);
questionEnabled = true;
}
_currentCursor = cursorType;
break;
case GType_Ringworld2:
if (cursorType == CURSOR_WALK) {
cursor = CURSOR_WALK_DATA;
delFlag = false;
} else {
// Inventory icon
InvObject *invObject = g_globals->_inventory->getItem((int)cursorType);
cursor = g_resourceManager->getSubResource(6, invObject->_strip, invObject->_frame, &size);
questionEnabled = true;
}
_currentCursor = cursorType;
break;
default:
// For Ringworld, always treat as the walk cursor
cursor = CURSOR_WALK_DATA;
_currentCursor = CURSOR_WALK;
delFlag = false;
break;
}
break;
// Ringworld 2 specific cursors
case EXITCURSOR_N:
case EXITCURSOR_S:
case EXITCURSOR_W:
case EXITCURSOR_E:
case EXITCURSOR_LEFT_HAND:
case CURSOR_INVALID:
case EXITCURSOR_NE:
case EXITCURSOR_SE:
case EXITCURSOR_SW:
case EXITCURSOR_NW:
case SHADECURSOR_UP:
case SHADECURSOR_DOWN:
case SHADECURSOR_HAND:
_currentCursor = cursorType;
cursor = g_resourceManager->getSubResource(5, 1, cursorType - R2CURSORS_START, &size);
break;
case R2_CURSOR_ROPE:
_currentCursor = cursorType;
cursor = g_resourceManager->getSubResource(5, 4, 1, &size);
break;
}
// Decode the cursor
GfxSurface s = surfaceFromRes(cursor);
Graphics::Surface surface = s.lockSurface();
const byte *cursorData = (const byte *)surface.getPixels();
CursorMan.replaceCursor(cursorData, surface.w, surface.h, s._centroid.x, s._centroid.y, s._transColor);
s.unlockSurface();
if (delFlag)
DEALLOCATE(cursor);
// For Blue Force and Return to Ringworld, enable the question button when an inventory icon is selected
if (g_vm->getGameID() != GType_Ringworld)
T2_GLOBALS._uiElements._question.setEnabled(questionEnabled);
}