/* 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. * * $URL$ * $Id$ * */ #include "backends/platform/gp2xwiz/gp2xwiz-sdl.h" #include "backends/platform/gp2xwiz/gp2xwiz-scaler.h" // TODO: Make GFX_HALF/HalfScale generic. #include "common/mutex.h" #include "graphics/font.h" #include "graphics/fontman.h" #include "graphics/scaler.h" #include "graphics/scaler/intern.h" #include "graphics/surface.h" static const OSystem::GraphicsMode s_supportedGraphicsModes[] = { {"1x", "Fullscreen", GFX_NORMAL}, // {"½x", "Downscale", GFX_HALF}, {0, 0, 0} }; const OSystem::GraphicsMode *OSystem_GP2XWIZ::getSupportedGraphicsModes() const { return s_supportedGraphicsModes; } int OSystem_GP2XWIZ::getDefaultGraphicsMode() const { return GFX_NORMAL; } bool OSystem_GP2XWIZ::setGraphicsMode(int mode) { Common::StackLock lock(_graphicsMutex); assert(_transactionMode == kTransactionActive); if (_oldVideoMode.setup && _oldVideoMode.mode == mode) return true; int newScaleFactor = 1; switch (mode) { case GFX_NORMAL: newScaleFactor = 1; break; case GFX_HALF: newScaleFactor = 1; break; default: warning("unknown gfx mode %d", mode); return false; } _transactionDetails.normal1xScaler = (mode == GFX_NORMAL); if (_oldVideoMode.setup && _oldVideoMode.scaleFactor != newScaleFactor) _transactionDetails.needHotswap = true; _transactionDetails.needUpdatescreen = true; _videoMode.mode = mode; _videoMode.scaleFactor = newScaleFactor; return true; } void OSystem_GP2XWIZ::setGraphicsModeIntern() { Common::StackLock lock(_graphicsMutex); ScalerProc *newScalerProc = 0; switch (_videoMode.mode) { case GFX_NORMAL: newScalerProc = Normal1x; break; case GFX_HALF: newScalerProc = HalfScale; break; default: error("Unknown gfx mode %d", _videoMode.mode); } _scalerProc = newScalerProc; if (!_screen || !_hwscreen) return; // Blit everything to the screen _forceFull = true; // Even if the old and new scale factors are the same, we may have a // different scaler for the cursor now. blitCursor(); } void OSystem_GP2XWIZ::initSize(uint w, uint h) { assert(_transactionMode == kTransactionActive); // Avoid redundant res changes if ((int)w == _videoMode.screenWidth && (int)h == _videoMode.screenHeight) return; _videoMode.screenWidth = w; _videoMode.screenHeight = h; if (w > 320 || h > 240){ setGraphicsMode(GFX_HALF); setGraphicsModeIntern(); toggleMouseGrab(); } _cksumNum = (w * h / (8 * 8)); _transactionDetails.sizeChanged = true; free(_dirtyChecksums); _dirtyChecksums = (uint32 *)calloc(_cksumNum * 2, sizeof(uint32)); } bool OSystem_GP2XWIZ::loadGFXMode() { _videoMode.overlayWidth = 320; _videoMode.overlayHeight = 240; _videoMode.fullscreen = true; if (_videoMode.screenHeight != 200 && _videoMode.screenHeight != 400) _videoMode.aspectRatioCorrection = false; OSystem_SDL::loadGFXMode(); } void OSystem_GP2XWIZ::drawMouse() { if (!_mouseVisible || !_mouseSurface) { _mouseBackup.x = _mouseBackup.y = _mouseBackup.w = _mouseBackup.h = 0; return; } SDL_Rect dst; int scale; int width, height; int hotX, hotY; if (_videoMode.mode == GFX_HALF && !_overlayVisible){ dst.x = _mouseCurState.x/2; dst.y = _mouseCurState.y/2; } else { dst.x = _mouseCurState.x; dst.y = _mouseCurState.y; } if (!_overlayVisible) { scale = _videoMode.scaleFactor; width = _videoMode.screenWidth; height = _videoMode.screenHeight; dst.w = _mouseCurState.vW; dst.h = _mouseCurState.vH; hotX = _mouseCurState.vHotX; hotY = _mouseCurState.vHotY; } else { scale = 1; width = _videoMode.overlayWidth; height = _videoMode.overlayHeight; dst.w = _mouseCurState.rW; dst.h = _mouseCurState.rH; hotX = _mouseCurState.rHotX; hotY = _mouseCurState.rHotY; } // The mouse is undrawn using virtual coordinates, i.e. they may be // scaled and aspect-ratio corrected. _mouseBackup.x = dst.x - hotX; _mouseBackup.y = dst.y - hotY; _mouseBackup.w = dst.w; _mouseBackup.h = dst.h; // We draw the pre-scaled cursor image, so now we need to adjust for // scaling, shake position and aspect ratio correction manually. if (!_overlayVisible) { dst.y += _currentShakePos; } if (_videoMode.aspectRatioCorrection && !_overlayVisible) dst.y = real2Aspect(dst.y); dst.x = scale * dst.x - _mouseCurState.rHotX; dst.y = scale * dst.y - _mouseCurState.rHotY; dst.w = _mouseCurState.rW; dst.h = _mouseCurState.rH; // Note that SDL_BlitSurface() and addDirtyRect() will both perform any // clipping necessary if (SDL_BlitSurface(_mouseSurface, NULL, _hwscreen, &dst) != 0) error("SDL_BlitSurface failed: %s", SDL_GetError()); // The screen will be updated using real surface coordinates, i.e. // they will not be scaled or aspect-ratio corrected. addDirtyRect(dst.x, dst.y, dst.w, dst.h, true); } void OSystem_GP2XWIZ::undrawMouse() { const int x = _mouseBackup.x; const int y = _mouseBackup.y; // When we switch bigger overlay off mouse jumps. Argh! // This is intended to prevent undrawing offscreen mouse if (!_overlayVisible && (x >= _videoMode.screenWidth || y >= _videoMode.screenHeight)) return; if (_mouseBackup.w != 0 && _mouseBackup.h != 0){ if (_videoMode.mode == GFX_HALF && !_overlayVisible){ addDirtyRect(x*2, y*2, _mouseBackup.w*2, _mouseBackup.h*2); } else { addDirtyRect(x, y, _mouseBackup.w, _mouseBackup.h); } } } void OSystem_GP2XWIZ::internUpdateScreen() { SDL_Surface *srcSurf, *origSurf; int height, width; ScalerProc *scalerProc; int scale1; #if defined (DEBUG) && ! defined(_WIN32_WCE) // definitions not available for non-DEBUG here. (needed this to compile in SYMBIAN32 & linux?) assert(_hwscreen != NULL); assert(_hwscreen->map->sw_data != NULL); #endif // If the shake position changed, fill the dirty area with blackness if (_currentShakePos != _newShakePos) { SDL_Rect blackrect = {0, 0, _videoMode.screenWidth * _videoMode.scaleFactor, _newShakePos * _videoMode.scaleFactor}; if (_videoMode.aspectRatioCorrection && !_overlayVisible) blackrect.h = real2Aspect(blackrect.h - 1) + 1; SDL_FillRect(_hwscreen, &blackrect, 0); _currentShakePos = _newShakePos; _forceFull = true; } // Check whether the palette was changed in the meantime and update the // screen surface accordingly. if (_screen && _paletteDirtyEnd != 0) { SDL_SetColors(_screen, _currentPalette + _paletteDirtyStart, _paletteDirtyStart, _paletteDirtyEnd - _paletteDirtyStart); _paletteDirtyEnd = 0; _forceFull = true; } #ifdef USE_OSD // OSD visible (i.e. non-transparent)? if (_osdAlpha != SDL_ALPHA_TRANSPARENT) { // Updated alpha value const int diff = SDL_GetTicks() - _osdFadeStartTime; if (diff > 0) { if (diff >= kOSDFadeOutDuration) { // Back to full transparency _osdAlpha = SDL_ALPHA_TRANSPARENT; } else { // Do a linear fade out... const int startAlpha = SDL_ALPHA_TRANSPARENT + kOSDInitialAlpha * (SDL_ALPHA_OPAQUE - SDL_ALPHA_TRANSPARENT) / 100; _osdAlpha = startAlpha + diff * (SDL_ALPHA_TRANSPARENT - startAlpha) / kOSDFadeOutDuration; } SDL_SetAlpha(_osdSurface, SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA, _osdAlpha); _forceFull = true; } } #endif if (!_overlayVisible) { origSurf = _screen; srcSurf = _tmpscreen; width = _videoMode.screenWidth; height = _videoMode.screenHeight; scalerProc = _scalerProc; scale1 = _videoMode.scaleFactor; } else { origSurf = _overlayscreen; srcSurf = _tmpscreen2; width = _videoMode.overlayWidth; height = _videoMode.overlayHeight; scalerProc = Normal1x; scale1 = 1; } // Add the area covered by the mouse cursor to the list of dirty rects if // we have to redraw the mouse. if (_mouseNeedsRedraw) undrawMouse(); // Force a full redraw if requested if (_forceFull) { _numDirtyRects = 1; _dirtyRectList[0].x = 0; _dirtyRectList[0].y = 0; _dirtyRectList[0].w = width; _dirtyRectList[0].h = height; } // Only draw anything if necessary if (_numDirtyRects > 0 || _mouseNeedsRedraw) { SDL_Rect *r; SDL_Rect dst; uint32 srcPitch, dstPitch; SDL_Rect *lastRect = _dirtyRectList + _numDirtyRects; for (r = _dirtyRectList; r != lastRect; ++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. 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; r != lastRect; ++r) { register int dst_y = r->y + _currentShakePos; register int dst_h = 0; register int dst_w = r->w; register int orig_dst_y = 0; register int dst_x = r->x; register int src_y; register int src_x; if (dst_y < height) { dst_h = r->h; if (dst_h > height - dst_y) dst_h = height - dst_y; orig_dst_y = dst_y; src_x = dst_x; src_y = dst_y; if (_videoMode.aspectRatioCorrection && !_overlayVisible) dst_y = real2Aspect(dst_y); assert(scalerProc != NULL); if (_videoMode.mode == GFX_HALF && scalerProc == HalfScale){ if (dst_x%2==1){ dst_x--; dst_w++; } if (dst_y%2==1){ dst_y--; dst_h++; } src_x = dst_x; src_y = dst_y; dst_x = dst_x / 2; dst_y = dst_y / 2; } scalerProc((byte *)srcSurf->pixels + (src_x * 2 + 2) + (src_y + 1) * srcPitch, srcPitch, (byte *)_hwscreen->pixels + dst_x * 2 + dst_y * dstPitch, dstPitch, dst_w, dst_h); } if (_videoMode.mode == GFX_HALF && scalerProc == HalfScale){ r->w = r->w / 2; r->h = dst_h / 2; } else { r->w = r->w; r->h = dst_h; } r->x = dst_x; r->y = dst_y; #ifndef DISABLE_SCALERS if (_videoMode.aspectRatioCorrection && orig_dst_y < height && !_overlayVisible) r->h = stretch200To240((uint8 *) _hwscreen->pixels, dstPitch, r->w, r->h, r->x, r->y, orig_dst_y * scale1); #endif } SDL_UnlockSurface(srcSurf); SDL_UnlockSurface(_hwscreen); // Readjust the dirty rect list in case we are doing a full update. // This is necessary if shaking is active. if (_forceFull) { _dirtyRectList[0].y = 0; _dirtyRectList[0].h = (_videoMode.mode == GFX_HALF) ? effectiveScreenHeight()/2 : effectiveScreenHeight(); } drawMouse(); #ifdef USE_OSD if (_osdAlpha != SDL_ALPHA_TRANSPARENT) { SDL_BlitSurface(_osdSurface, 0, _hwscreen, 0); } #endif // Finally, blit all our changes to the screen SDL_UpdateRects(_hwscreen, _numDirtyRects, _dirtyRectList); } _numDirtyRects = 0; _forceFull = false; _mouseNeedsRedraw = false; } void OSystem_GP2XWIZ::showOverlay() { if (_videoMode.mode == GFX_HALF){ _mouseCurState.x = _mouseCurState.x / 2; _mouseCurState.y = _mouseCurState.y / 2; } OSystem_SDL::showOverlay(); } void OSystem_GP2XWIZ::hideOverlay() { if (_videoMode.mode == GFX_HALF){ _mouseCurState.x = _mouseCurState.x * 2; _mouseCurState.y = _mouseCurState.y * 2; } OSystem_SDL::hideOverlay(); } void OSystem_GP2XWIZ::warpMouse(int x, int y) { if (_mouseCurState.x != x || _mouseCurState.y != y) { if (_videoMode.mode == GFX_HALF && !_overlayVisible){ x = x / 2; y = y / 2; } } OSystem_SDL::warpMouse(x, y); }