void MystCursorManager::setCursor(uint16 id) {
// Zero means empty cursor
if (id == 0) {
static const byte emptyCursor[4] = { 0, 0, 0, 0 };
CursorMan.replaceCursor(&emptyCursor, 2, 2, 0, 0, 0);
return;
}
// Both Myst and Myst ME use the "MystBitmap" format for cursor images.
MohawkSurface *mhkSurface = _bmpDecoder->decodeImage(_vm->getResource(ID_WDIB, id));
Graphics::Surface *surface = mhkSurface->getSurface();
Common::SeekableReadStream *clrcStream = _vm->getResource(ID_CLRC, id);
uint16 hotspotX = clrcStream->readUint16LE();
uint16 hotspotY = clrcStream->readUint16LE();
delete clrcStream;
// Myst ME stores some cursors as 24bpp images instead of 8bpp
if (surface->format.bytesPerPixel == 1) {
CursorMan.replaceCursor(surface->getPixels(), surface->w, surface->h, hotspotX, hotspotY, 0);
CursorMan.replaceCursorPalette(mhkSurface->getPalette(), 0, 256);
} else {
Graphics::PixelFormat pixelFormat = g_system->getScreenFormat();
CursorMan.replaceCursor(surface->getPixels(), surface->w, surface->h, hotspotX, hotspotY, pixelFormat.RGBToColor(255, 255, 255), false, &pixelFormat);
}
_vm->_needsUpdate = true;
delete mhkSurface;
}
void LBGraphics::copyOffsetAnimImageToScreen(uint16 image, int left, int top) {
MohawkSurface *mhkSurface = findImage(image);
left -= mhkSurface->getOffsetX();
top -= mhkSurface->getOffsetY();
GraphicsManager::copyAnimImageToScreen(image, left, top);
}
void RivenGraphics::drawInventoryImage(uint16 id, const Common::Rect *rect) {
MohawkSurface *mhkSurface = _bitmapDecoder->decodeImage(_vm->getExtrasResource(ID_TBMP, id));
mhkSurface->convertToTrueColor();
Graphics::Surface *surface = mhkSurface->getSurface();
_vm->_system->copyRectToScreen((byte *)surface->pixels, surface->pitch, rect->left, rect->top, surface->w, surface->h);
delete mhkSurface;
}
void RivenGraphics::drawExtrasImage(uint16 id, Common::Rect dstRect) {
MohawkSurface *mhkSurface = _bitmapDecoder->decodeImage(_vm->getExtrasResource(ID_TBMP, id));
mhkSurface->convertToTrueColor();
Graphics::Surface *surface = mhkSurface->getSurface();
assert(dstRect.width() == surface->w);
for (uint16 i = 0; i < surface->h; i++)
memcpy(_mainScreen->getBasePtr(dstRect.left, i + dstRect.top), surface->getBasePtr(0, i), surface->pitch);
delete mhkSurface;
_dirtyScreen = true;
}
void RivenGraphics::beginCredits() {
// Clear the old cache
clearCache();
// Now cache all the credits images
for (uint16 i = 302; i <= 320; i++) {
MohawkSurface *surface = _bitmapDecoder->decodeImage(_vm->getExtrasResource(ID_TBMP, i));
surface->convertToTrueColor();
addImageToCache(i, surface);
}
// And clear our screen too
clearMainScreen();
}
bool LBGraphics::imageIsTransparentAt(uint16 image, bool useOffsets, int x, int y) {
MohawkSurface *mhkSurface = findImage(image);
if (useOffsets) {
x += mhkSurface->getOffsetX();
y += mhkSurface->getOffsetY();
}
if (x < 0 || y < 0)
return true;
Graphics::Surface *surface = mhkSurface->getSurface();
if (x >= surface->w || y >= surface->h)
return true;
return *(byte *)surface->getBasePtr(x, y) == 0;
}
void MystCursorManager::setCursor(uint16 id) {
// Zero means empty cursor
if (id == 0) {
static const byte emptyCursor[4] = { 0, 0, 0, 0 };
CursorMan.replaceCursor(&emptyCursor, 2, 2, 0, 0, 0);
return;
}
Common::SeekableReadStream *clrcStream = _vm->getResource(ID_CLRC, id);
uint16 hotspotX = clrcStream->readUint16LE();
uint16 hotspotY = clrcStream->readUint16LE();
delete clrcStream;
// Both Myst and Myst ME use the "MystBitmap" format for cursor images.
MohawkSurface *mhkSurface = _vm->_gfx->findImage(id);
Graphics::Surface *surface = mhkSurface->getSurface();
// Myst ME stores some cursors as 24bpp images instead of 8bpp
if (surface->format.bytesPerPixel == 1) {
// The transparent color is almost always 255, except for the main cursor (100)
// in the D'ni archive, where it is 0.
// Using the color of the first pixel as the transparent color for the main cursor always works.
byte transparentColor;
if (id == kDefaultMystCursor) {
transparentColor = ((byte *)surface->getPixels())[0];
} else {
transparentColor = 255;
}
CursorMan.replaceCursor(surface->getPixels(), surface->w, surface->h, hotspotX, hotspotY, transparentColor);
// We're using the screen palette for the original game, but we need
// to use this for any 8bpp cursor in ME.
if (_vm->getFeatures() & GF_ME)
CursorMan.replaceCursorPalette(mhkSurface->getPalette(), 0, 256);
} else {
Graphics::PixelFormat pixelFormat = g_system->getScreenFormat();
CursorMan.replaceCursor(surface->getPixels(), surface->w, surface->h, hotspotX, hotspotY, pixelFormat.RGBToColor(255, 255, 255), false, &pixelFormat);
}
}
MohawkSurface *RivenGraphics::decodeImage(uint16 id) {
MohawkSurface *surface = _bitmapDecoder->decodeImage(_vm->getResource(ID_TBMP, id));
surface->convertToTrueColor();
return surface;
}
