void OSystem_SDL::clearOverlay() {
//assert (_transactionMode == kTransactionNone);
Common::StackLock lock(_graphicsMutex); // Lock the mutex until this function ends
if (!_overlayVisible)
return;
// Clear the overlay by making the game screen "look through" everywhere.
SDL_Rect src, dst;
src.x = src.y = 0;
dst.x = dst.y = 1;
src.w = dst.w = _screenWidth;
src.h = dst.h = _screenHeight;
if (SDL_BlitSurface(_screen, &src, _tmpscreen, &dst) != 0)
error("SDL_BlitSurface failed: %s", SDL_GetError());
SDL_LockSurface(_tmpscreen);
SDL_LockSurface(_overlayscreen);
_scalerProc((byte *)(_tmpscreen->pixels) + _tmpscreen->pitch + 2, _tmpscreen->pitch,
(byte *)_overlayscreen->pixels, _overlayscreen->pitch, _screenWidth, _screenHeight);
#ifndef DISABLE_SCALERS
if (_adjustAspectRatio)
stretch200To240((uint8 *)_overlayscreen->pixels, _overlayscreen->pitch,
_overlayWidth, _screenHeight * _scaleFactor, 0, 0, 0);
#endif
SDL_UnlockSurface(_tmpscreen);
SDL_UnlockSurface(_overlayscreen);
_forceFull = true;
}
void WINCESdlGraphicsManager::internUpdateScreen() {
SDL_Surface *srcSurf, *origSurf;
static bool old_overlayVisible = false;
int numRectsOut = 0;
int16 routx, routy, routw, routh, stretch, shakestretch;
assert(_hwscreen != NULL);
// bail if the application is minimized, be nice to OS
if (!_hasfocus) {
Sleep(20);
return;
}
// If the shake position changed, fill the dirty area with blackness
if (_currentShakePos != _newShakePos) {
SDL_Rect blackrect = {0, 0, _videoMode.screenWidth *_scaleFactorXm / _scaleFactorXd, _newShakePos *_scaleFactorYm / _scaleFactorYd};
if (_videoMode.aspectRatioCorrection)
blackrect.h = real2Aspect(blackrect.h - 1) + 1;
SDL_FillRect(_hwscreen, &blackrect, 0);
_currentShakePos = _newShakePos;
_forceFull = true;
}
// Make sure the mouse is drawn, if it should be drawn.
drawMouse();
// Check whether the palette was changed in the meantime and update the
// screen surface accordingly.
if (_paletteDirtyEnd != 0) {
SDL_SetColors(_screen, _currentPalette + _paletteDirtyStart, _paletteDirtyStart, _paletteDirtyEnd - _paletteDirtyStart);
_paletteDirtyEnd = 0;
_forceFull = true;
}
if (!_overlayVisible) {
origSurf = _screen;
srcSurf = _tmpscreen;
} else {
origSurf = _overlayscreen;
srcSurf = _tmpscreen2;
}
if (old_overlayVisible != _overlayVisible) {
old_overlayVisible = _overlayVisible;
update_scalers();
}
// Force a full redraw if requested
if (_forceFull) {
_numDirtyRects = 1;
_dirtyRectList[0].x = 0;
if (!_zoomDown)
_dirtyRectList[0].y = 0;
else
_dirtyRectList[0].y = _videoMode.screenHeight / 2;
_dirtyRectList[0].w = _videoMode.screenWidth;
if (!_zoomUp && !_zoomDown)
_dirtyRectList[0].h = _videoMode.screenHeight;
else
_dirtyRectList[0].h = _videoMode.screenHeight / 2;
_toolbarHandler.forceRedraw();
}
// Only draw anything if necessary
if (_numDirtyRects > 0) {
SDL_Rect *r, *rout;
SDL_Rect dst;
uint32 srcPitch, dstPitch;
SDL_Rect *last_rect = _dirtyRectList + _numDirtyRects;
bool toolbarVisible = _toolbarHandler.visible();
int toolbarOffset = _toolbarHandler.getOffset();
for (r = _dirtyRectList; r != last_rect; ++r) {
dst = *r;
dst.x++; // Shift rect by one since 2xSai needs to access the data around
dst.y++; // any pixel to scale it, and we want to avoid mem access crashes.
// NOTE: This is also known as BLACK MAGIC, copied from the sdl backend
if (SDL_BlitSurface(origSurf, r, srcSurf, &dst) != 0)
error("SDL_BlitSurface failed: %s", SDL_GetError());
}
SDL_LockSurface(srcSurf);
SDL_LockSurface(_hwscreen);
srcPitch = srcSurf->pitch;
dstPitch = _hwscreen->pitch;
for (r = _dirtyRectList, rout = _dirtyRectOut; r != last_rect; ++r) {
// always clamp to enclosing, downsampled-grid-aligned rect in the downscaled image
if (_scaleFactorXd != 1) {
stretch = r->x % _scaleFactorXd;
r->x -= stretch;
r->w += stretch;
r->w = (r->x + r->w + _scaleFactorXd - 1) / _scaleFactorXd * _scaleFactorXd - r->x;
}
if (_scaleFactorYd != 1) {
stretch = r->y % _scaleFactorYd;
r->y -= stretch;
r->h += stretch;
r->h = (r->y + r->h + _scaleFactorYd - 1) / _scaleFactorYd * _scaleFactorYd - r->y;
}
// transform
shakestretch = _currentShakePos * _scaleFactorYm / _scaleFactorYd;
routx = r->x * _scaleFactorXm / _scaleFactorXd; // locate position in scaled screen
routy = r->y * _scaleFactorYm / _scaleFactorYd + shakestretch; // adjust for shake offset
routw = r->w * _scaleFactorXm / _scaleFactorXd;
routh = r->h * _scaleFactorYm / _scaleFactorYd - shakestretch;
// clipping destination rectangle inside device screen (more strict, also more tricky but more stable)
// note that all current scalers do not make dst rect exceed left/right, unless chosen badly (FIXME)
if (_zoomDown) routy -= 240; // adjust for zoom position
if (routy + routh < 0) continue;
if (routy < 0) {
routh += routy;
r->y -= routy * _scaleFactorYd / _scaleFactorYm;
routy = 0;
r->h = routh * _scaleFactorYd / _scaleFactorYm;
}
if (_orientationLandscape) {
if (routy > OSystem_WINCE3::getScreenWidth()) continue;
if (routy + routh > OSystem_WINCE3::getScreenWidth()) {
routh = OSystem_WINCE3::getScreenWidth() - routy;
r->h = routh * _scaleFactorYd / _scaleFactorYm;
}
} else {
if (routy > OSystem_WINCE3::getScreenHeight()) continue;
if (routy + routh > OSystem_WINCE3::getScreenHeight()) {
routh = OSystem_WINCE3::getScreenHeight() - routy;
r->h = routh * _scaleFactorYd / _scaleFactorYm;
}
}
// check if the toolbar is overwritten
if (toolbarVisible && r->y + r->h >= toolbarOffset)
_toolbarHandler.forceRedraw();
// blit it (with added voodoo from the sdl backend, shifting the source rect again)
_scalerProc((byte *)srcSurf->pixels + (r->x * 2 + 2) + (r->y + 1) * srcPitch, srcPitch,
(byte *)_hwscreen->pixels + routx * 2 + routy * dstPitch, dstPitch,
r->w, r->h - _currentShakePos);
// add this rect to output
rout->x = routx;
rout->y = routy - shakestretch;
rout->w = routw;
rout->h = routh + shakestretch;
numRectsOut++;
rout++;
}
SDL_UnlockSurface(srcSurf);
SDL_UnlockSurface(_hwscreen);
}
// Add the toolbar if needed
SDL_Rect toolbar_rect[1];
if (_panelVisible && _toolbarHandler.draw(_toolbarLow, &toolbar_rect[0])) {
// It can be drawn, scale it
uint32 srcPitch, dstPitch;
SDL_Surface *toolbarSurface;
ScalerProc *toolbarScaler;
if (_videoMode.screenHeight > 240) {
if (!_toolbarHighDrawn) {
// Resize the toolbar
SDL_LockSurface(_toolbarLow);
SDL_LockSurface(_toolbarHigh);
Normal2x((byte *)_toolbarLow->pixels, _toolbarLow->pitch, (byte *)_toolbarHigh->pixels, _toolbarHigh->pitch, toolbar_rect[0].w, toolbar_rect[0].h);
SDL_UnlockSurface(_toolbarHigh);
SDL_UnlockSurface(_toolbarLow);
_toolbarHighDrawn = true;
}
toolbar_rect[0].w *= 2;
toolbar_rect[0].h *= 2;
toolbarSurface = _toolbarHigh;
} else
toolbarSurface = _toolbarLow;
drawToolbarMouse(toolbarSurface, true); // draw toolbar mouse if applicable
// Apply the appropriate scaler
SDL_LockSurface(toolbarSurface);
SDL_LockSurface(_hwscreen);
srcPitch = toolbarSurface->pitch;
dstPitch = _hwscreen->pitch;
toolbarScaler = _scalerProc;
if (_videoMode.scaleFactor == 2)
toolbarScaler = Normal2x;
else if (_videoMode.scaleFactor == 3)
toolbarScaler = Normal3x;
toolbarScaler((byte *)toolbarSurface->pixels, srcPitch,
(byte *)_hwscreen->pixels + (_toolbarHandler.getOffset() * _scaleFactorYm / _scaleFactorYd * dstPitch),
dstPitch, toolbar_rect[0].w, toolbar_rect[0].h);
SDL_UnlockSurface(toolbarSurface);
SDL_UnlockSurface(_hwscreen);
// And blit it
toolbar_rect[0].y = _toolbarHandler.getOffset();
toolbar_rect[0].x = toolbar_rect[0].x * _scaleFactorXm / _scaleFactorXd;
toolbar_rect[0].y = toolbar_rect[0].y * _scaleFactorYm / _scaleFactorYd;
toolbar_rect[0].w = toolbar_rect[0].w * _scaleFactorXm / _scaleFactorXd;
toolbar_rect[0].h = toolbar_rect[0].h * _scaleFactorYm / _scaleFactorYd;
SDL_UpdateRects(_hwscreen, 1, toolbar_rect);
drawToolbarMouse(toolbarSurface, false); // undraw toolbar mouse
}
// Finally, blit all our changes to the screen
if (numRectsOut > 0)
SDL_UpdateRects(_hwscreen, numRectsOut, _dirtyRectOut);
_numDirtyRects = 0;
_forceFull = false;
}
