| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2012 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 |
| |
| Micah Dowty |
| micahjd@users.sourceforge.net |
| */ |
| #include "SDL_config.h" |
| |
| #include "SDL_video.h" |
| #include "SDL_mouse.h" |
| #include "../SDL_sysvideo.h" |
| #include "../SDL_pixels_c.h" |
| #include "../../events/SDL_events_c.h" |
| |
| #include "SDL_pgvideo.h" |
| #include "SDL_pgevents_c.h" |
| |
| #define PGVID_DRIVER_NAME "picogui" |
| |
| /* Initialization/Query functions */ |
| static int PG_VideoInit(_THIS, SDL_PixelFormat *vformat); |
| static SDL_Rect **PG_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
| static SDL_Surface *PG_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| static int PG_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); |
| static void PG_VideoQuit(_THIS); |
| |
| /* Hardware surface functions */ |
| static int PG_AllocHWSurface(_THIS, SDL_Surface *surface); |
| static int PG_LockHWSurface(_THIS, SDL_Surface *surface); |
| static void PG_UnlockHWSurface(_THIS, SDL_Surface *surface); |
| static void PG_FreeHWSurface(_THIS, SDL_Surface *surface); |
| |
| /* etc. */ |
| static void PG_UpdateRects(_THIS, int numrects, SDL_Rect *rects); |
| |
| // The implementation dependent data for the window manager cursor |
| struct WMcursor { |
| /* Our cursor is a PicoGUI theme */ |
| pghandle theme; |
| } ; |
| |
| /* WM functions */ |
| void PG_SetCaption(_THIS, const char *title, const char *icon); |
| WMcursor * PG_CreateWMCursor (_THIS,Uint8 * data, Uint8 * mask, |
| int w, int h, int hot_x, int hot_y); |
| void PG_FreeWMCursor (_THIS, WMcursor * cursor); |
| void PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y); |
| int PG_ShowWMCursor (_THIS, WMcursor * cursor); |
| |
| /* PicoGUI driver bootstrap functions */ |
| |
| static int PG_Available(void) |
| { |
| /* FIXME: The current client lib doesn't give a way to see if the picogui |
| * server is reachable without causing a fatal error if it isn't. |
| * This should be fixed in cli_c2, but until then assume we can |
| * connect. Since more common drivers like X11 are probed first anyway, |
| * this shouldn't be a huge problem. |
| */ |
| return(1); |
| } |
| |
| static void PG_DeleteDevice(SDL_VideoDevice *device) |
| { |
| SDL_free(device->hidden); |
| SDL_free(device); |
| } |
| |
| static SDL_VideoDevice *PG_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 = PG_VideoInit; |
| device->ListModes = PG_ListModes; |
| device->SetVideoMode = PG_SetVideoMode; |
| device->CreateYUVOverlay = NULL; |
| device->SetColors = PG_SetColors; |
| device->UpdateRects = PG_UpdateRects; |
| device->VideoQuit = PG_VideoQuit; |
| device->AllocHWSurface = PG_AllocHWSurface; |
| device->CheckHWBlit = NULL; |
| device->FillHWRect = NULL; |
| device->SetHWColorKey = NULL; |
| device->SetHWAlpha = NULL; |
| device->LockHWSurface = PG_LockHWSurface; |
| device->UnlockHWSurface = PG_UnlockHWSurface; |
| device->FlipHWSurface = NULL; |
| device->FreeHWSurface = PG_FreeHWSurface; |
| device->SetCaption = PG_SetCaption; |
| device->SetIcon = NULL; |
| device->IconifyWindow = NULL; |
| device->GrabInput = NULL; |
| |
| device->PumpEvents = PG_PumpEvents; |
| device->InitOSKeymap = PG_InitOSKeymap; |
| |
| device->ShowWMCursor = PG_ShowWMCursor; |
| device->CreateWMCursor = PG_CreateWMCursor; |
| device->FreeWMCursor = PG_FreeWMCursor; |
| device->WarpWMCursor = PG_WarpWMCursor; |
| |
| device->free = PG_DeleteDevice; |
| |
| return device; |
| } |
| |
| VideoBootStrap PG_bootstrap = { |
| PGVID_DRIVER_NAME, "PicoGUI SDL driver", |
| PG_Available, PG_CreateDevice |
| }; |
| |
| |
| int PG_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| { |
| /* Connect to the PicoGUI server. No way to process command line args yet, |
| * but since this is based on SHM it's not important to be able to specify |
| * a remote PicoGUI server. |
| * |
| * FIXME: Another nitpick about the current client lib is there's no |
| * clean way to indicate that command line args are not available. |
| */ |
| pgInit(0,(char**)""); |
| this->hidden->mi = *pgGetVideoMode(); |
| |
| /* Create a picogui application and canvas. We'll populate the canvas later. */ |
| this->hidden->wApp = pgRegisterApp(PG_APP_NORMAL,"SDL",0); |
| this->hidden->wCanvas = pgNewWidget(PG_WIDGET_CANVAS,0,0); |
| pgSetWidget(PGDEFAULT, |
| PG_WP_SIDE, PG_S_ALL, |
| 0); |
| |
| PG_InitEvents(this); |
| |
| /* Determine the current screen size */ |
| this->info.current_w = this->hidden->mi.lxres; |
| this->info.current_h = this->hidden->mi.lyres; |
| |
| /* Determine the screen depth. |
| * We change this during the SDL_SetVideoMode implementation... |
| * Round up to the nearest Bytes per pixel |
| */ |
| vformat->BitsPerPixel = this->hidden->mi.bpp; |
| vformat->BytesPerPixel = this->hidden->mi.bpp >> 3; |
| if (this->hidden->mi.bpp & 7) |
| vformat->BytesPerPixel++; |
| |
| /* We're done! */ |
| return(0); |
| } |
| |
| SDL_Rect **PG_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| { |
| return (SDL_Rect **) -1; |
| } |
| |
| SDL_Surface *PG_SetVideoMode(_THIS, SDL_Surface *current, |
| int width, int height, int bpp, Uint32 flags) |
| { |
| if ( this->hidden->bitmap ) { |
| /* Free old bitmap */ |
| if (current->pixels) { |
| shmdt(current->pixels); |
| current->pixels = NULL; |
| } |
| pgDelete(this->hidden->bitmap); |
| } |
| |
| /* Allocate the new pixel format for the screen */ |
| if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { |
| SDL_SetError("Couldn't allocate new pixel format for requested mode"); |
| return(NULL); |
| } |
| |
| /* Create a new picogui bitmap */ |
| this->hidden->bitmap = pgCreateBitmap(width,height); |
| this->hidden->shm = *pgMakeSHMBitmap(this->hidden->bitmap); |
| current->pixels = shmat(shmget(this->hidden->shm.shm_key, |
| this->hidden->shm.shm_length,0),NULL,0); |
| |
| /* Reset the canvas, and draw persistent and incremental grops. |
| * Use mapping and offsets to center it. |
| */ |
| |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_NUKE, 0); |
| |
| /* 0. Set the source position during incremental rendering |
| */ |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 5, PG_GROP_SETSRC,0,0,0,0); |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1, PG_GROPF_INCREMENTAL); |
| |
| /* 1. Incremental bitmap rendering |
| */ |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP, |
| 0,0,0,0,this->hidden->bitmap); |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1, PG_GROPF_INCREMENTAL); |
| |
| /* 2. Normal bitmap rendering |
| */ |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP, |
| 0,0,this->hidden->shm.width,this->hidden->shm.height,this->hidden->bitmap); |
| |
| /* Set up the new mode framebuffer */ |
| current->flags = 0; |
| current->w = this->hidden->shm.width; |
| current->h = this->hidden->shm.height; |
| current->pitch = this->hidden->shm.pitch; |
| |
| /* Set up pixel format */ |
| current->format->BitsPerPixel = this->hidden->shm.bpp; |
| current->format->BytesPerPixel = this->hidden->shm.bpp >> 3; |
| if (this->hidden->shm.bpp & 7) |
| current->format->BytesPerPixel++; |
| current->format->palette = NULL; |
| current->format->Rmask = this->hidden->shm.red_mask; |
| current->format->Gmask = this->hidden->shm.green_mask; |
| current->format->Bmask = this->hidden->shm.blue_mask; |
| current->format->Amask = this->hidden->shm.alpha_mask; |
| current->format->Rshift = this->hidden->shm.red_shift; |
| current->format->Gshift = this->hidden->shm.green_shift; |
| current->format->Bshift = this->hidden->shm.blue_shift; |
| current->format->Ashift = this->hidden->shm.alpha_shift; |
| current->format->Rloss = 8 - this->hidden->shm.red_length; |
| current->format->Gloss = 8 - this->hidden->shm.green_length; |
| current->format->Bloss = 8 - this->hidden->shm.blue_length; |
| current->format->Aloss = 8 - this->hidden->shm.alpha_length; |
| |
| /* Draw the app */ |
| pgUpdate(); |
| |
| /* We're done */ |
| return(current); |
| } |
| |
| /* We don't actually allow hardware surfaces other than the main one */ |
| static int PG_AllocHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(-1); |
| } |
| static void PG_FreeHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| /* We need to wait for vertical retrace on page flipped displays */ |
| static int PG_LockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(0); |
| } |
| |
| static void PG_UnlockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| static void PG_UpdateRects(_THIS, int numrects, SDL_Rect *rects) |
| { |
| int i; |
| |
| for (i = 0; i < numrects; i++) { |
| if (rects[i].w <= 0 || rects[i].h <= 0) |
| continue; |
| |
| /* Schedule an incremental update for this rectangle, using |
| * the canvas gropnodes we've loaded beforehand. |
| */ |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 0); |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4, |
| rects[i].x, rects[i].y, |
| rects[i].w, rects[i].h); |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 1); |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4, |
| rects[i].x, rects[i].y, |
| rects[i].w, rects[i].h); |
| |
| /* Go perform the update */ |
| pgWriteCmd(this->hidden->wCanvas, PGCANVAS_INCREMENTAL, 0); |
| pgSubUpdate(this->hidden->wCanvas); |
| } |
| } |
| |
| int PG_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
| { |
| /* do nothing of note. */ |
| return(1); |
| } |
| |
| /* Note: If we are terminated, this could be called in the middle of |
| another SDL video routine -- notably UpdateRects. |
| */ |
| void PG_VideoQuit(_THIS) |
| { |
| if (this->screen->pixels != NULL) |
| { |
| shmdt(this->screen->pixels); |
| this->screen->pixels = NULL; |
| pgDelete(this->hidden->bitmap); |
| } |
| pgDelete(this->hidden->wCanvas); |
| pgDelete(this->hidden->wApp); |
| } |
| |
| void PG_SetCaption(_THIS, const char *title, const char *icon) |
| { |
| if (title != NULL) |
| pgReplaceText(this->hidden->wApp, title); |
| pgUpdate(); |
| } |
| |
| /* FIXME: The cursor stuff isn't implemented yet! */ |
| |
| WMcursor * PG_CreateWMCursor (_THIS,Uint8 * data, Uint8 * mask, |
| int w, int h, int hot_x, int hot_y) |
| { |
| static WMcursor dummy; |
| return &dummy; |
| } |
| |
| void PG_FreeWMCursor (_THIS, WMcursor * cursor) |
| { |
| } |
| |
| void PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
| { |
| } |
| |
| int PG_ShowWMCursor (_THIS, WMcursor * cursor) |
| { |
| return 1; |
| } |