diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/dummy/SDL_nullvideo.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/dummy/SDL_nullvideo.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/distrib/sdl-1.2.12/src/video/dummy/SDL_nullvideo.c b/distrib/sdl-1.2.12/src/video/dummy/SDL_nullvideo.c deleted file mode 100644 index fe6fab6..0000000 --- a/distrib/sdl-1.2.12/src/video/dummy/SDL_nullvideo.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - 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" - -/* Dummy SDL video driver implementation; this is just enough to make an - * SDL-based application THINK it's got a working video driver, for - * applications that call SDL_Init(SDL_INIT_VIDEO) when they don't need it, - * and also for use as a collection of stubs when porting SDL to a new - * platform for which you haven't yet written a valid video driver. - * - * This is also a great way to determine bottlenecks: if you think that SDL - * is a performance problem for a given platform, enable this driver, and - * then see if your application runs faster without video overhead. - * - * Initial work by Ryan C. Gordon (icculus@icculus.org). A good portion - * of this was cut-and-pasted from Stephane Peter's work in the AAlib - * SDL video driver. Renamed to "DUMMY" by Sam Lantinga. - */ - -#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_nullvideo.h" -#include "SDL_nullevents_c.h" -#include "SDL_nullmouse_c.h" - -#define DUMMYVID_DRIVER_NAME "dummy" - -/* Initialization/Query functions */ -static int DUMMY_VideoInit(_THIS, SDL_PixelFormat *vformat); -static SDL_Rect **DUMMY_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -static SDL_Surface *DUMMY_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -static int DUMMY_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); -static void DUMMY_VideoQuit(_THIS); - -/* Hardware surface functions */ -static int DUMMY_AllocHWSurface(_THIS, SDL_Surface *surface); -static int DUMMY_LockHWSurface(_THIS, SDL_Surface *surface); -static void DUMMY_UnlockHWSurface(_THIS, SDL_Surface *surface); -static void DUMMY_FreeHWSurface(_THIS, SDL_Surface *surface); - -/* etc. */ -static void DUMMY_UpdateRects(_THIS, int numrects, SDL_Rect *rects); - -/* DUMMY driver bootstrap functions */ - -static int DUMMY_Available(void) -{ - const char *envr = SDL_getenv("SDL_VIDEODRIVER"); - if ((envr) && (SDL_strcmp(envr, DUMMYVID_DRIVER_NAME) == 0)) { - return(1); - } - - return(0); -} - -static void DUMMY_DeleteDevice(SDL_VideoDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_VideoDevice *DUMMY_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 = DUMMY_VideoInit; - device->ListModes = DUMMY_ListModes; - device->SetVideoMode = DUMMY_SetVideoMode; - device->CreateYUVOverlay = NULL; - device->SetColors = DUMMY_SetColors; - device->UpdateRects = DUMMY_UpdateRects; - device->VideoQuit = DUMMY_VideoQuit; - device->AllocHWSurface = DUMMY_AllocHWSurface; - device->CheckHWBlit = NULL; - device->FillHWRect = NULL; - device->SetHWColorKey = NULL; - device->SetHWAlpha = NULL; - device->LockHWSurface = DUMMY_LockHWSurface; - device->UnlockHWSurface = DUMMY_UnlockHWSurface; - device->FlipHWSurface = NULL; - device->FreeHWSurface = DUMMY_FreeHWSurface; - device->SetCaption = NULL; - device->SetIcon = NULL; - device->IconifyWindow = NULL; - device->GrabInput = NULL; - device->GetWMInfo = NULL; - device->InitOSKeymap = DUMMY_InitOSKeymap; - device->PumpEvents = DUMMY_PumpEvents; - - device->free = DUMMY_DeleteDevice; - - return device; -} - -VideoBootStrap DUMMY_bootstrap = { - DUMMYVID_DRIVER_NAME, "SDL dummy video driver", - DUMMY_Available, DUMMY_CreateDevice -}; - - -int DUMMY_VideoInit(_THIS, SDL_PixelFormat *vformat) -{ - /* - fprintf(stderr, "WARNING: You are using the SDL dummy video driver!\n"); - */ - - /* Determine the screen depth (use default 8-bit depth) */ - /* we change this during the SDL_SetVideoMode implementation... */ - vformat->BitsPerPixel = 8; - vformat->BytesPerPixel = 1; - - /* We're done! */ - return(0); -} - -SDL_Rect **DUMMY_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) -{ - return (SDL_Rect **) -1; -} - -SDL_Surface *DUMMY_SetVideoMode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) -{ - if ( this->hidden->buffer ) { - SDL_free( this->hidden->buffer ); - } - - this->hidden->buffer = SDL_malloc(width * height * (bpp / 8)); - if ( ! this->hidden->buffer ) { - SDL_SetError("Couldn't allocate buffer for requested mode"); - return(NULL); - } - -/* printf("Setting mode %dx%d\n", width, height); */ - - SDL_memset(this->hidden->buffer, 0, width * height * (bpp / 8)); - - /* Allocate the new pixel format for the screen */ - if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { - SDL_free(this->hidden->buffer); - this->hidden->buffer = NULL; - SDL_SetError("Couldn't allocate new pixel format for requested mode"); - return(NULL); - } - - /* Set up the new mode framebuffer */ - current->flags = flags & SDL_FULLSCREEN; - this->hidden->w = current->w = width; - this->hidden->h = current->h = height; - current->pitch = current->w * (bpp / 8); - current->pixels = this->hidden->buffer; - - /* We're done */ - return(current); -} - -/* We don't actually allow hardware surfaces other than the main one */ -static int DUMMY_AllocHWSurface(_THIS, SDL_Surface *surface) -{ - return(-1); -} -static void DUMMY_FreeHWSurface(_THIS, SDL_Surface *surface) -{ - return; -} - -/* We need to wait for vertical retrace on page flipped displays */ -static int DUMMY_LockHWSurface(_THIS, SDL_Surface *surface) -{ - return(0); -} - -static void DUMMY_UnlockHWSurface(_THIS, SDL_Surface *surface) -{ - return; -} - -static void DUMMY_UpdateRects(_THIS, int numrects, SDL_Rect *rects) -{ - /* do nothing. */ -} - -int DUMMY_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 DUMMY_VideoQuit(_THIS) -{ - if (this->screen->pixels != NULL) - { - SDL_free(this->screen->pixels); - this->screen->pixels = NULL; - } -} |