diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/aalib/SDL_aavideo.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/aalib/SDL_aavideo.c | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/distrib/sdl-1.2.12/src/video/aalib/SDL_aavideo.c b/distrib/sdl-1.2.12/src/video/aalib/SDL_aavideo.c deleted file mode 100644 index 3ec322e..0000000 --- a/distrib/sdl-1.2.12/src/video/aalib/SDL_aavideo.c +++ /dev/null @@ -1,388 +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" - -/* AAlib based SDL video driver implementation. -*/ - -#include <unistd.h> -#include <sys/stat.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_aavideo.h" -#include "SDL_aaevents_c.h" -#include "SDL_aamouse_c.h" - -#include <aalib.h> - -/* Initialization/Query functions */ -static int AA_VideoInit(_THIS, SDL_PixelFormat *vformat); -static SDL_Rect **AA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -static SDL_Surface *AA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -static int AA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); -static void AA_VideoQuit(_THIS); - -/* Hardware surface functions */ -static int AA_AllocHWSurface(_THIS, SDL_Surface *surface); -static int AA_LockHWSurface(_THIS, SDL_Surface *surface); -static int AA_FlipHWSurface(_THIS, SDL_Surface *surface); -static void AA_UnlockHWSurface(_THIS, SDL_Surface *surface); -static void AA_FreeHWSurface(_THIS, SDL_Surface *surface); - -/* Cache the VideoDevice struct */ -static struct SDL_VideoDevice *local_this; - -/* AAlib driver bootstrap functions */ - -static int AA_Available(void) -{ - return 1; /* Always available ! */ -} - -static void AA_DeleteDevice(SDL_VideoDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_VideoDevice *AA_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 = AA_VideoInit; - device->ListModes = AA_ListModes; - device->SetVideoMode = AA_SetVideoMode; - device->CreateYUVOverlay = NULL; - device->SetColors = AA_SetColors; - device->UpdateRects = NULL; - device->VideoQuit = AA_VideoQuit; - device->AllocHWSurface = AA_AllocHWSurface; - device->CheckHWBlit = NULL; - device->FillHWRect = NULL; - device->SetHWColorKey = NULL; - device->SetHWAlpha = NULL; - device->LockHWSurface = AA_LockHWSurface; - device->UnlockHWSurface = AA_UnlockHWSurface; - device->FlipHWSurface = NULL; - device->FreeHWSurface = AA_FreeHWSurface; - device->SetCaption = NULL; - device->SetIcon = NULL; - device->IconifyWindow = NULL; - device->GrabInput = NULL; - device->GetWMInfo = NULL; - device->InitOSKeymap = AA_InitOSKeymap; - device->PumpEvents = AA_PumpEvents; - - device->free = AA_DeleteDevice; - - return device; -} - -VideoBootStrap AALIB_bootstrap = { - "aalib", "ASCII Art Library", - AA_Available, AA_CreateDevice -}; - -static void AA_ResizeHandler(aa_context *); - -int AA_VideoInit(_THIS, SDL_PixelFormat *vformat) -{ - int keyboard; - int i; - - /* Initialize all variables that we clean on shutdown */ - for ( i=0; i<SDL_NUMMODES; ++i ) { - SDL_modelist[i] = SDL_malloc(sizeof(SDL_Rect)); - SDL_modelist[i]->x = SDL_modelist[i]->y = 0; - } - /* Modes sorted largest to smallest */ - SDL_modelist[0]->w = 1024; SDL_modelist[0]->h = 768; - SDL_modelist[1]->w = 800; SDL_modelist[1]->h = 600; - SDL_modelist[2]->w = 640; SDL_modelist[2]->h = 480; - SDL_modelist[3]->w = 320; SDL_modelist[3]->h = 400; - SDL_modelist[4]->w = 320; SDL_modelist[4]->h = 240; - SDL_modelist[5]->w = 320; SDL_modelist[5]->h = 200; - SDL_modelist[6] = NULL; - - /* Initialize the library */ - - AA_mutex = SDL_CreateMutex(); - - aa_parseoptions (NULL, NULL, NULL, NULL); - - AA_context = aa_autoinit(&aa_defparams); - if ( ! AA_context ) { - SDL_SetError("Unable to initialize AAlib"); - return(-1); - } - - /* Enable mouse and keyboard support */ - - if ( ! aa_autoinitkbd (AA_context, AA_SENDRELEASE) ) { - SDL_SetError("Unable to initialize AAlib keyboard"); - return(-1); - } - if ( ! aa_autoinitmouse (AA_context, AA_SENDRELEASE) ) { - fprintf(stderr,"Warning: Unable to initialize AAlib mouse"); - } - AA_rparams = aa_getrenderparams(); - - local_this = this; - - aa_resizehandler(AA_context, AA_ResizeHandler); - - fprintf(stderr,"Using AAlib driver: %s (%s)\n", AA_context->driver->name, AA_context->driver->shortname); - - AA_in_x11 = (SDL_strcmp(AA_context->driver->shortname,"X11") == 0); - /* Determine the screen depth (use default 8-bit depth) */ - vformat->BitsPerPixel = 8; - vformat->BytesPerPixel = 1; - - /* We're done! */ - return(0); -} - -SDL_Rect **AA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) -{ - if(format->BitsPerPixel != 8) - return NULL; - - if ( flags & SDL_FULLSCREEN ) { - return SDL_modelist; - } else { - return (SDL_Rect **) -1; - } -} - -/* From aavga.c - AAlib does not give us the choice of the actual resolution, thus we have to simulate additional - resolution by scaling down manually each frame -*/ -static void fastscale (register char *b1, register char *b2, int x1, int x2, int y1, int y2) -{ - register int ex, spx = 0, ddx, ddx1; - int ddy1, ddy, spy = 0, ey; - int x; - char *bb1 = b1; - if (!x1 || !x2 || !y1 || !y2) - return; - ddx = x1 + x1; - ddx1 = x2 + x2; - if (ddx1 < ddx) - spx = ddx / ddx1, ddx %= ddx1; - ddy = y1 + y1; - ddy1 = y2 + y2; - if (ddy1 < ddy) - spy = (ddy / ddy1) * x1, ddy %= ddy1; - ey = -ddy1; - for (; y2; y2--) { - ex = -ddx1; - for (x = x2; x; x--) { - *b2 = *b1; - b2++; - b1 += spx; - ex += ddx; - if (ex > 0) { - b1++; - ex -= ddx1; - } - } - bb1 += spy; - ey += ddy; - if (ey > 0) { - bb1 += x1; - ey -= ddy1; - } - b1 = bb1; - } -} - -/* Various screen update functions available */ -static void AA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); - -SDL_Surface *AA_SetVideoMode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) -{ - int mode; - - if ( AA_buffer ) { - SDL_free( AA_buffer ); - } - - AA_buffer = SDL_malloc(width * height); - if ( ! AA_buffer ) { - SDL_SetError("Couldn't allocate buffer for requested mode"); - return(NULL); - } - -/* printf("Setting mode %dx%d\n", width, height); */ - - SDL_memset(aa_image(AA_context), 0, aa_imgwidth(AA_context) * aa_imgheight(AA_context)); - SDL_memset(AA_buffer, 0, width * height); - - /* Allocate the new pixel format for the screen */ - if ( ! SDL_ReallocFormat(current, 8, 0, 0, 0, 0) ) { - return(NULL); - } - - /* Set up the new mode framebuffer */ - current->flags = SDL_FULLSCREEN; - AA_w = current->w = width; - AA_h = current->h = height; - current->pitch = current->w; - current->pixels = AA_buffer; - - AA_x_ratio = ((double)aa_imgwidth(AA_context)) / ((double)width); - AA_y_ratio = ((double)aa_imgheight(AA_context)) / ((double)height); - - /* Set the blit function */ - this->UpdateRects = AA_DirectUpdate; - - /* We're done */ - return(current); -} - -static void AA_ResizeHandler(aa_context *context) -{ - aa_resize(context); - local_this->hidden->x_ratio = ((double)aa_imgwidth(context)) / ((double)local_this->screen->w); - local_this->hidden->y_ratio = ((double)aa_imgheight(context)) / ((double)local_this->screen->h); - - fastscale (local_this->hidden->buffer, aa_image(context), local_this->hidden->w, aa_imgwidth (context), local_this->hidden->h, aa_imgheight (context)); - aa_renderpalette(context, local_this->hidden->palette, local_this->hidden->rparams, 0, 0, aa_scrwidth(context), aa_scrheight(context)); - aa_flush(context); -} - -/* We don't actually allow hardware surfaces other than the main one */ -static int AA_AllocHWSurface(_THIS, SDL_Surface *surface) -{ - return(-1); -} -static void AA_FreeHWSurface(_THIS, SDL_Surface *surface) -{ - return; -} - -/* We need to wait for vertical retrace on page flipped displays */ -static int AA_LockHWSurface(_THIS, SDL_Surface *surface) -{ - /* TODO ? */ - return(0); -} -static void AA_UnlockHWSurface(_THIS, SDL_Surface *surface) -{ - return; -} - -/* FIXME: How is this done with AAlib? */ -static int AA_FlipHWSurface(_THIS, SDL_Surface *surface) -{ - SDL_mutexP(AA_mutex); - aa_flush(AA_context); - SDL_mutexV(AA_mutex); - return(0); -} - -static void AA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) -{ - int i; - SDL_Rect *rect; - - fastscale (AA_buffer, aa_image(AA_context), AA_w, aa_imgwidth (AA_context), AA_h, aa_imgheight (AA_context)); -#if 1 - aa_renderpalette(AA_context, AA_palette, AA_rparams, 0, 0, aa_scrwidth(AA_context), aa_scrheight(AA_context)); -#else - /* Render only the rectangles in the list */ - printf("Update rects : "); - for ( i=0; i < numrects; ++i ) { - rect = &rects[i]; - printf("(%d,%d-%d,%d)", rect->x, rect->y, rect->w, rect->h); - aa_renderpalette(AA_context, AA_palette, AA_rparams, rect->x * AA_x_ratio, rect->y * AA_y_ratio, rect->w * AA_x_ratio, rect->h * AA_y_ratio); - } - printf("\n"); -#endif - SDL_mutexP(AA_mutex); - aa_flush(AA_context); - SDL_mutexV(AA_mutex); - return; -} - -int AA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) -{ - int i; - - for ( i=0; i < ncolors; i++ ) { - aa_setpalette(AA_palette, firstcolor + i, - colors[i].r>>2, - colors[i].g>>2, - colors[i].b>>2); - } - return(1); -} - -/* Note: If we are terminated, this could be called in the middle of - another SDL video routine -- notably UpdateRects. -*/ -void AA_VideoQuit(_THIS) -{ - int i; - - aa_uninitkbd(AA_context); - aa_uninitmouse(AA_context); - - /* Free video mode lists */ - for ( i=0; i<SDL_NUMMODES; ++i ) { - if ( SDL_modelist[i] != NULL ) { - SDL_free(SDL_modelist[i]); - SDL_modelist[i] = NULL; - } - } - - aa_close(AA_context); - - SDL_DestroyMutex(AA_mutex); - - this->screen->pixels = NULL; -} |