diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/picogui/SDL_pgvideo.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/picogui/SDL_pgvideo.c | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/picogui/SDL_pgvideo.c b/distrib/sdl-1.2.15/src/video/picogui/SDL_pgvideo.c new file mode 100644 index 0000000..18b3fe4 --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/picogui/SDL_pgvideo.c @@ -0,0 +1,364 @@ +/* + 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; +} |