Mercurial > sdl-ios-xcode
view src/video/macrom/SDL_romvideo.c @ 1643:51038e80ae59
More general fix for bug #189
The clipping is done at a higher level, and the low level functions are
passed clipped rectangles. Drivers which don't support source clipping
have not been changed, so the image will be squished instead of clipped,
but at least they will no longer crash when the destination rect was out
of bounds.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 17 Apr 2006 06:47:23 +0000 |
parents | f12379c41042 |
children | e49147870aac e6de7e5fd451 |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #if defined(__APPLE__) && defined(__MACH__) #include <Carbon/Carbon.h> #if USE_QUICKTIME #include <QuickTime/Movies.h> #endif #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) #include <Carbon.h> /* The fullscreen code requires the QuickTime framework, and the window is still at the back on Mac OS X, which is where this code is needed. */ #if USE_QUICKTIME #include <Movies.h> #endif #else #include <LowMem.h> #include <Gestalt.h> #include <Devices.h> #include <DiskInit.h> #include <QDOffscreen.h> #endif #include "SDL_video.h" #include "SDL_syswm.h" #include "../SDL_sysvideo.h" #include "SDL_romvideo.h" #include "../maccommon/SDL_macgl_c.h" #include "../maccommon/SDL_macwm_c.h" #include "../maccommon/SDL_macmouse_c.h" #include "../maccommon/SDL_macevents_c.h" /* Initialization/Query functions */ static int ROM_VideoInit(_THIS, SDL_PixelFormat *vformat); static SDL_Rect **ROM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); static SDL_Surface *ROM_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); static int ROM_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); static void ROM_VideoQuit(_THIS); /* Hardware surface functions */ static int ROM_AllocHWSurface(_THIS, SDL_Surface *surface); static int ROM_LockHWSurface(_THIS, SDL_Surface *surface); static void ROM_UnlockHWSurface(_THIS, SDL_Surface *surface); static void ROM_FreeHWSurface(_THIS, SDL_Surface *surface); #if !TARGET_API_MAC_CARBON /* This seems not to be available? -sts Aug 2000 */ /* Saved state for the menu bar */ static RgnHandle gSaveGrayRgn = nil; static short gSaveMenuBar = 0; static Boolean gSaveCSVis = true; #if powerc /* Mixed mode glue to activate the 68K emulator and twiddle a register */ #define ONEWORDSTUB(p1) \ { 0x41FA, 0x0010, 0x209F, (p1), 0x41FA, \ 0x0008, 0x2F10, 0x4E75, 0x0000, 0x0000, 0x0000 } #define TWOWORDSTUB(p1,p2) \ { 0x41FA, 0x0012, 0x209F, (p1), (p2), 0x41FA, \ 0x0008, 0x2F10, 0x4E75, 0x0000, 0x0000, 0x0000 } #define THREEWORDSTUB(p1,p2,p3) \ { 0x41FA, 0x0014, 0x209F, (p1), (p2), (p3), 0x41FA, \ 0x0008, 0x2F10, 0x4E75, 0x0000, 0x0000, 0x0000 } /* ControlStrip inline glue for PowerPC */ static pascal Boolean SBIsControlStripVisible(void) { static short procData[] = TWOWORDSTUB(0x7000, 0xAAF2); ProcInfoType procInfo = kD0DispatchedPascalStackBased | RESULT_SIZE(SIZE_CODE(sizeof(Boolean))) | DISPATCHED_STACK_ROUTINE_SELECTOR_SIZE(kFourByteCode); return((Boolean) CallUniversalProc((UniversalProcPtr) procData, procInfo, 0x00)); } static pascal void SBShowHideControlStrip(Boolean showIt) { static short procData[] = THREEWORDSTUB(0x303C, 0x0101, 0xAAF2); ProcInfoType procInfo = kD0DispatchedPascalStackBased | DISPATCHED_STACK_ROUTINE_SELECTOR_SIZE(kFourByteCode) | DISPATCHED_STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(Boolean))); CallUniversalProc((UniversalProcPtr) procData, procInfo, 0x01, showIt); } #endif /* powerc */ #endif /* !TARGET_API_MAC_CARBON */ /* Macintosh toolbox driver bootstrap functions */ static int ROM_Available(void) { return(1); } static void ROM_DeleteDevice(SDL_VideoDevice *device) { SDL_free(device->hidden); SDL_free(device); } static SDL_VideoDevice *ROM_CreateDevice(int devindex) { SDL_VideoDevice *device; /* Initialize all variables that we clean on shutdown */ device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); if ( device ) { SDL_memset(device, 0, (sizeof *device)); device->hidden = (struct SDL_PrivateVideoData *) SDL_malloc((sizeof *device->hidden)); } if ( (device == NULL) || (device->hidden == NULL) ) { SDL_OutOfMemory(); if ( device ) { SDL_free(device); } return(0); } SDL_memset(device->hidden, 0, (sizeof *device->hidden)); /* Set the function pointers */ device->VideoInit = ROM_VideoInit; device->ListModes = ROM_ListModes; device->SetVideoMode = ROM_SetVideoMode; device->SetColors = ROM_SetColors; device->UpdateRects = NULL; device->VideoQuit = ROM_VideoQuit; device->AllocHWSurface = ROM_AllocHWSurface; device->CheckHWBlit = NULL; device->FillHWRect = NULL; device->SetHWColorKey = NULL; device->SetHWAlpha = NULL; device->LockHWSurface = ROM_LockHWSurface; device->UnlockHWSurface = ROM_UnlockHWSurface; device->FlipHWSurface = NULL; device->FreeHWSurface = ROM_FreeHWSurface; #if SDL_VIDEO_OPENGL device->GL_MakeCurrent = Mac_GL_MakeCurrent; device->GL_SwapBuffers = Mac_GL_SwapBuffers; device->GL_LoadLibrary = Mac_GL_LoadLibrary; device->GL_GetProcAddress = Mac_GL_GetProcAddress; #endif // Have OpenGL device->SetCaption = Mac_SetCaption; device->SetIcon = NULL; device->IconifyWindow = NULL; device->GrabInput = NULL; device->GetWMInfo = NULL; device->FreeWMCursor = Mac_FreeWMCursor; device->CreateWMCursor = Mac_CreateWMCursor; device->ShowWMCursor = Mac_ShowWMCursor; device->WarpWMCursor = Mac_WarpWMCursor; device->InitOSKeymap = Mac_InitOSKeymap; device->PumpEvents = Mac_PumpEvents; device->free = ROM_DeleteDevice; return device; } VideoBootStrap TOOLBOX_bootstrap = { "toolbox", "MacOS ROM Toolbox", ROM_Available, ROM_CreateDevice }; static int ROM_VideoInit(_THIS, SDL_PixelFormat *vformat) { long info; /* Check out some things about the system */ Gestalt(gestaltQuickdrawVersion, &info); if ( info == gestaltOriginalQD ) { SDL_SetError("Color Quickdraw not available"); return(-1); } /* Start ROMintosh events */ Mac_InitEvents(this); /* Get a handle to the main monitor */ SDL_Display = GetMainDevice(); /* Determine the current screen size */ this->info.current_w = (**SDL_Display).gdRect.right; this->info.current_h = (**SDL_Display).gdRect.bottom; /* Determine pixel format */ vformat->BitsPerPixel = (**(**SDL_Display).gdPMap).pixelSize; switch (vformat->BitsPerPixel) { case 16: /* 5-5-5 RGB */ vformat->Rmask = 0x00007c00; vformat->Gmask = 0x000003e0; vformat->Bmask = 0x0000001f; break; default: break; } /* Create our palette */ SDL_CTab = (CTabHandle)NewHandle(sizeof(ColorSpec)*256 + 8); if ( SDL_CTab == nil ) { SDL_OutOfMemory(); return(-1); } (**SDL_CTab).ctSeed = GetCTSeed(); (**SDL_CTab).ctFlags = 0; (**SDL_CTab).ctSize = 255; CTabChanged(SDL_CTab); SDL_CPal = NewPalette(256, SDL_CTab, pmExplicit+pmTolerant, 0); /* Get a list of available fullscreen modes */ SDL_modelist = (SDL_Rect **)SDL_malloc((1+1)*sizeof(SDL_Rect *)); if ( SDL_modelist ) { SDL_modelist[0] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect)); if ( SDL_modelist[0] ) { SDL_modelist[0]->x = 0; SDL_modelist[0]->y = 0; SDL_modelist[0]->w = (**SDL_Display).gdRect.right; SDL_modelist[0]->h = (**SDL_Display).gdRect.bottom; } SDL_modelist[1] = NULL; } /* Fill in some window manager capabilities */ this->info.wm_available = 1; /* We're done! */ return(0); } static SDL_Rect **ROM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) { if ( this->screen->format->BitsPerPixel == format->BitsPerPixel ) { if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { return(SDL_modelist); } else { return((SDL_Rect **)-1); } } else { return((SDL_Rect **)0); } } static void ROM_HideMenuBar(_THIS) { #if !TARGET_API_MAC_CARBON /* This seems not to be available? -sts Aug 2000 */ RgnHandle drawRgn = nil; RgnHandle tempRgn = nil; RgnHandle grayRgn = nil; WindowPtr window = nil; GDHandle gd = nil; GrafPtr savePort; long response; short height; EventRecord theEvent; height = GetMBarHeight(); if ( height > 0 ) { tempRgn = NewRgn(); drawRgn = NewRgn(); gSaveGrayRgn = NewRgn(); if ( ! tempRgn || ! drawRgn || ! gSaveGrayRgn ) { goto CLEANUP; } grayRgn = GetGrayRgn(); /* No need to check for this */ GetPort(&savePort); /* Hide the control strip if it's present, and record its previous position into the dirty region for redrawing. This isn't necessary, but may help catch stray bits. */ CopyRgn(grayRgn, tempRgn); if (!Gestalt(gestaltControlStripAttr, &response) && (response & (1L << gestaltControlStripExists))) { gSaveCSVis = SBIsControlStripVisible(); if (gSaveCSVis) SBShowHideControlStrip(false); } DiffRgn(grayRgn, tempRgn, drawRgn); /* Save the gray region once the control strip is hidden*/ CopyRgn(grayRgn, gSaveGrayRgn); /* Change the menu height in lowmem */ gSaveMenuBar = height; LMSetMBarHeight(0); /* Walk the monitor rectangles, and combine any pieces that aren't in GrayRgn: menubar, round corners, fake floaters. */ for(gd = GetDeviceList(); gd; gd = GetNextDevice(gd)) { if (!TestDeviceAttribute(gd, screenDevice)) continue; if (!TestDeviceAttribute(gd, screenActive)) continue; RectRgn(tempRgn, &(*gd)->gdRect); /* Get the whole screen */ DiffRgn(tempRgn, grayRgn, tempRgn); /* Subtract out GrayRgn */ UnionRgn(tempRgn, drawRgn, drawRgn);/* Combine all the bits */ } /* Add the bits into the GrayRgn */ UnionRgn(drawRgn, grayRgn, grayRgn); /* Modify the vis regions of exposed windows */ window = (FrontWindow()) ? FrontWindow() : (WindowPtr) -1L; PaintBehind(window, drawRgn); CalcVisBehind(window, drawRgn); SetPort(savePort); /* Yield time so that floaters can catch up */ EventAvail(0, &theEvent); EventAvail(0, &theEvent); EventAvail(0, &theEvent); EventAvail(0, &theEvent); } CLEANUP: if (tempRgn) DisposeRgn(tempRgn); if (drawRgn) DisposeRgn(drawRgn); #endif /* !TARGET_API_MAC_CARBON */ } static void ROM_ShowMenuBar(_THIS) { #if !TARGET_API_MAC_CARBON /* This seems not to be available? -sts Aug 2000 */ RgnHandle drawRgn = nil; RgnHandle menuRgn = nil; RgnHandle tempRgn = nil; RgnHandle grayRgn = nil; WindowPtr window = nil; GrafPtr wMgrPort; GrafPtr savePort; Rect menuRect; long response; short height; EventRecord theEvent; RGBColor saveRGB; RGBColor blackRGB = { 0, 0, 0 }; height = GetMBarHeight(); if ((height <= 0) && (gSaveMenuBar > 0)) { drawRgn = NewRgn(); menuRgn = NewRgn(); tempRgn = NewRgn(); if ( ! tempRgn || ! drawRgn || ! gSaveGrayRgn ) { goto CLEANUP; } grayRgn = GetGrayRgn(); /* No need to check for this */ GetPort(&savePort); GetWMgrPort(&wMgrPort); /* Set the height properly */ LMSetMBarHeight(gSaveMenuBar); /* Restore the old GrayRgn: rounded corners, etc, but not the menubar -- subtract that out first! */ if (gSaveGrayRgn) { menuRect = (*GetMainDevice())->gdRect; menuRect.bottom = menuRect.top + gSaveMenuBar; RectRgn(menuRgn, &menuRect); DiffRgn(grayRgn, gSaveGrayRgn, drawRgn); /* What do we inval? */ DiffRgn(drawRgn, menuRgn, drawRgn); /* Clip out the menu */ /* Now redraw the corners and other bits black */ SetPort(wMgrPort); GetClip(tempRgn); SetClip(drawRgn); GetForeColor(&saveRGB); RGBForeColor(&blackRGB); PaintRgn(drawRgn); RGBForeColor(&saveRGB); SetClip(tempRgn); SetPort(savePort); UnionRgn(drawRgn, menuRgn, drawRgn); /* Put back the menu */ /* Now actually restore the GrayRgn */ CopyRgn(gSaveGrayRgn, grayRgn); DisposeRgn(gSaveGrayRgn); gSaveGrayRgn = nil; } /* Modify the vis regions of exposed windows and draw menubar */ window = (FrontWindow()) ? FrontWindow() : (WindowPtr) -1L; PaintBehind(window, drawRgn); CalcVisBehind(window, drawRgn); DrawMenuBar(); SetPort(savePort); gSaveMenuBar = 0; /* Now show the control strip if it's present */ if (!Gestalt(gestaltControlStripAttr, &response) && (response & (1L << gestaltControlStripExists))) { if (gSaveCSVis && !SBIsControlStripVisible()) SBShowHideControlStrip(true); gSaveCSVis = true; } /* Yield time so that floaters can catch up */ EventAvail(0, &theEvent); EventAvail(0, &theEvent); EventAvail(0, &theEvent); EventAvail(0, &theEvent); } CLEANUP: if (drawRgn) DisposeRgn(drawRgn); if (menuRgn) DisposeRgn(menuRgn); if (tempRgn) DisposeRgn(tempRgn); #endif /* !TARGET_API_MAC_CARBON */ } /* Various screen update functions available */ static void ROM_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); static void ROM_WindowUpdate(_THIS, int numrects, SDL_Rect *rects); static void ROM_UnsetVideoMode(_THIS, SDL_Surface *current) { /* Free the current window, if any */ if ( SDL_Window != nil ) { GWorldPtr memworld; /* Handle OpenGL support */ Mac_GL_Quit(this); memworld = (GWorldPtr)GetWRefCon(SDL_Window); if ( memworld != nil ) { UnlockPixels(GetGWorldPixMap(memworld)); DisposeGWorld(memworld); } if ( (current->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { #if USE_QUICKTIME EndFullScreen(fullscreen_ctx, nil); SDL_Window = nil; #else ROM_ShowMenuBar(this); #endif } } current->pixels = NULL; current->flags &= ~(SDL_HWSURFACE|SDL_FULLSCREEN); } static SDL_Surface *ROM_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags) { Rect wrect, orect; #if TARGET_API_MAC_CARBON Rect tmprect; #endif /* Free any previous video mode */ ROM_UnsetVideoMode(this, current); /* Create the ROM window and SDL video surface */ current->flags = 0; /* Clear flags */ current->w = width; current->h = height; SetRect(&wrect, 0, 0, width, height); if ( SDL_Window ) { /* If we recreate the window, don't move it around */ #if TARGET_API_MAC_CARBON orect = *GetWindowPortBounds(SDL_Window, &tmprect); #else orect = SDL_Window->portRect; #endif OffsetRect(&wrect, orect.left, orect.top); } else { /* Center the window the first time we show it */ OffsetRect(&wrect, (SDL_modelist[0]->w-width)/2, (SDL_modelist[0]->h-height)/2); } #if defined(__MACOSX__) && !USE_QUICKTIME /* Hum.. fullscreen mode is broken */ flags &= ~SDL_FULLSCREEN; #endif if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { /* Create the fullscreen window and use screen bits */ current->flags |= SDL_HWSURFACE|SDL_FULLSCREEN; if ( SDL_Window ) { DisposeWindow(SDL_Window); } #if USE_QUICKTIME BeginFullScreen(&fullscreen_ctx, nil, 0,0, &SDL_Window, nil, 0); #else SDL_Window = NewCWindow(nil, &wrect, "\p", true, plainDBox, (WindowPtr)-1, false, 0); ROM_HideMenuBar(this); #endif current->pitch = (**(**SDL_Display).gdPMap).rowBytes & 0x3FFF; current->pixels = (**(**SDL_Display).gdPMap).baseAddr; this->UpdateRects = ROM_DirectUpdate; } else { GWorldPtr memworld; PixMapHandle pixmap; int style; style = noGrowDocProc; if ( flags & SDL_NOFRAME ) { style = plainDBox; current->flags |= SDL_NOFRAME; } else if ( flags & SDL_RESIZABLE ) { style = zoomDocProc; current->flags |= SDL_RESIZABLE; } if ( SDL_Window && (style == current_style) ) { /* Resize existing window, if necessary */ if ( ((orect.right-orect.left) != width) || ((orect.bottom-orect.top) != height) ) { SizeWindow(SDL_Window, width, height, false); } } else { /* Recreate the window in the new style */ if ( SDL_Window ) { DisposeWindow(SDL_Window); } SDL_Window = NewCWindow(nil, &wrect, "\p", true, style, (WindowPtr)-1, true, 0); /* Set the window title, if any */ { char *title; SDL_WM_GetCaption(&title, NULL); if ( title ) { Mac_SetCaption(this, title, NULL); } } } current_style = style; SetPalette(SDL_Window, SDL_CPal, false); ActivatePalette(SDL_Window); if ( NewGWorld(&memworld, 0, #if TARGET_API_MAC_CARBON GetWindowPortBounds(SDL_Window, &tmprect), #else &SDL_Window->portRect, #endif SDL_CTab, nil, 0) != noErr ) { SDL_SetError("NewGWorld() failed"); return(NULL); } SetWRefCon(SDL_Window, (long)memworld); pixmap = GetGWorldPixMap(memworld); LockPixels(pixmap); current->pitch = (**pixmap).rowBytes & 0x3FFF; current->pixels = GetPixBaseAddr(pixmap); this->UpdateRects = ROM_WindowUpdate; } SetPortWindowPort(SDL_Window); SelectWindow(SDL_Window); /* Handle OpenGL support */ if ( flags & SDL_OPENGL ) { if ( Mac_GL_Init(this) == 0 ) { current->flags |= SDL_OPENGL; } else { current = NULL; } } if ( (flags & SDL_HWPALETTE) && (flags & SDL_FULLSCREEN) ) current->flags |= SDL_HWPALETTE; /* We're live! */ return(current); } /* We don't actually allow hardware surfaces other than the main one */ static int ROM_AllocHWSurface(_THIS, SDL_Surface *surface) { return(-1); } static void ROM_FreeHWSurface(_THIS, SDL_Surface *surface) { return; } static int ROM_LockHWSurface(_THIS, SDL_Surface *surface) { return(0); } static void ROM_UnlockHWSurface(_THIS, SDL_Surface *surface) { return; } static void ROM_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) { /* The application is already updating the visible video memory */ return; } static void ROM_WindowUpdate(_THIS, int numrects, SDL_Rect *rects) { GWorldPtr memworld; GrafPtr saveport; CGrafPtr thePort; const BitMap *memBits; const BitMap *winBits; int i; Rect update; /* Copy from the offscreen GWorld to the window port */ GetPort(&saveport); SetPortWindowPort(SDL_Window); thePort = GetWindowPort(SDL_Window); memworld = (GWorldPtr)GetWRefCon(SDL_Window); #if TARGET_API_MAC_CARBON memBits = GetPortBitMapForCopyBits((CGrafPtr) memworld); #else memBits = &((GrafPtr)memworld)->portBits; #endif #if TARGET_API_MAC_CARBON winBits = GetPortBitMapForCopyBits(thePort); #else winBits = &SDL_Window->portBits; #endif for ( i=0; i<numrects; ++i ) { update.left = rects[i].x; update.right = rects[i].x+rects[i].w; update.top = rects[i].y; update.bottom = rects[i].y+rects[i].h; CopyBits(memBits, winBits, &update, &update, srcCopy, nil); } #if TARGET_API_MAC_CARBON if ( QDIsPortBuffered(thePort) ) { QDFlushPortBuffer(thePort, NULL); } #endif SetPort(saveport); } static int ROM_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) { CTabHandle cTab; int i; /* Get the colortable from the either the display or window */ if ( (this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { cTab = (**(**SDL_Display).gdPMap).pmTable; } else { cTab = SDL_CTab; } /* Verify the range of colors */ if ( (firstcolor+ncolors) > ((**cTab).ctSize+1) ) { return(0); } /* Set the screen palette and update the display */ for ( i=0; i< ncolors; ++i ) { int j = firstcolor + i; (**cTab).ctTable[j].value = j; (**cTab).ctTable[j].rgb.red = colors[i].r << 8 | colors[i].r; (**cTab).ctTable[j].rgb.green = colors[i].g << 8 | colors[i].g; (**cTab).ctTable[j].rgb.blue = colors[i].b << 8 | colors[i].b; } // if ( (this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { GDevice **odisplay; odisplay = GetGDevice(); SetGDevice(SDL_Display); SetEntries(0, (**cTab).ctSize, (ColorSpec *)&(**cTab).ctTable); SetGDevice(odisplay); } return(1); } void ROM_VideoQuit(_THIS) { int i; /* Free current video mode */ ROM_UnsetVideoMode(this, this->screen); if ( SDL_Window ) { DisposeWindow(SDL_Window); SDL_Window = nil; } /* Free palette and restore original one */ if ( SDL_CTab != nil ) { DisposeHandle((Handle)SDL_CTab); SDL_CTab = nil; } if ( SDL_CPal != nil ) { DisposePalette(SDL_CPal); SDL_CPal = nil; } RestoreDeviceClut(GetMainDevice()); /* Free list of video modes */ if ( SDL_modelist != NULL ) { for ( i=0; SDL_modelist[i]; ++i ) { SDL_free(SDL_modelist[i]); } SDL_free(SDL_modelist); SDL_modelist = NULL; } }