src/Core/Video.xs

   1 #include "EXTERN.h"
   2 #include "perl.h"
   3 #include "XSUB.h"
   4
   5 #ifndef aTHX_
   6 #define aTHX_
   7 #endif
   8
   9 #include <SDL.h>
  10
  11
  12 static Uint16* av_to_uint16 (AV* av)
  13 {
  14         int len = av_len(av);
  15         if( len != -1)
  16         {
  17         int i;
  18         Uint16* table = (Uint16 *)safemalloc(sizeof(Uint16)*(len));
  19                 //fprintf( stderr, "Expecting 1,2,5,6 \n Length is %d \n", len);
  20         for ( i = 0; i < len+1 ; i++ ){
  21                 SV ** temp = av_fetch(av,i,0);
  22               if( temp != NULL)
  23                 {
  24                 table[i] =  (Uint16 *) SvIV(  *temp   )  ;
  25                 /* fprintf( stderr, "table[%d] = ", i);
  26                  if (table[i] == NULL) { fprintf ( stderr, " NULL\n"); }
  27                 else{ fprintf(stderr, " %d \n", table[i]); } */
  28                 }
  29                 else { table[i] =0; }
  30
  31         }
  32 //              warn("Got %d %d %d %d \n", table[0], table[1], table[2], table[3] );
  33
  34         return table;
  35         }
  36         return NULL;
  37 }
  38
  39
  40
  41 MODULE = SDL::Video     PACKAGE = SDL::Video    PREFIX = video_
  42
  43 =for documentation
  44
  45 The Following are XS bindings to the Video category in the SDL API v2.1.13
  46
  47 Describe on the SDL API site.
  48
  49 See: L<http://www.libsdl.org/cgi/docwiki.cgi/SDL_API#head-813f033ec44914f267f32195aba7d9aff8c410c0>
  50
  51 =cut
  52
  53 SDL_Surface *
  54 video_get_video_surface()
  55         PREINIT:
  56                 char* CLASS = "SDL::Surface";
  57         CODE:
  58                 RETVAL = SDL_GetVideoSurface();
  59         OUTPUT:
  60                 RETVAL
  61
  62
  63 SDL_VideoInfo*
  64 video_get_video_info()
  65         PREINIT:
  66                 char* CLASS = "SDL::VideoInfo";
  67         CODE:
  68                 RETVAL = (SDL_VideoInfo *) SDL_GetVideoInfo();
  69
  70         OUTPUT:
  71                 RETVAL
  72
  73 SV *
  74 video_video_driver_name( )
  75
  76         CODE:
  77                 char buffer[1024];
  78                 if ( SDL_VideoDriverName(buffer, 1024) != NULL )
  79                 {
  80                         RETVAL =  newSVpv(buffer, 0);
  81                 }
  82                 else
  83                          XSRETURN_UNDEF;
  84         OUTPUT:
  85                 RETVAL
  86
  87 AV*
  88 list_modes ( format, flags )
  89         Uint32 flags
  90         SDL_PixelFormat *format
  91
  92         CODE:
  93                 SDL_Rect **mode;
  94                 RETVAL = newAV();
  95                 mode = SDL_ListModes(format,flags);
  96                 if (mode == (SDL_Rect**)-1 ) {
  97                         av_push(RETVAL,newSVpv("all",0));
  98                 } else if (! mode ) {
  99                         av_push(RETVAL,newSVpv("none",0));
 100                 } else {
 101                         for (;*mode;mode++) {
 102                                 av_push(RETVAL,newSViv(PTR2IV(*mode)));
 103                         }
 104                 }
 105         OUTPUT:
 106                 RETVAL
 107
 108
 109 int
 110 video_video_mode_ok ( width, height, bpp, flags )
 111         int width
 112         int height
 113         int bpp
 114         Uint32 flags
 115         CODE:
 116                 RETVAL = SDL_VideoModeOK(width,height,bpp,flags);
 117         OUTPUT:
 118                 RETVAL
 119
 120
 121 SDL_Surface *
 122 video_set_video_mode ( width, height, bpp, flags )
 123         int width
 124         int height
 125         int bpp
 126         Uint32 flags
 127         PREINIT:
 128                 char* CLASS = "SDL::Surface";
 129         CODE:
 130                 RETVAL = SDL_SetVideoMode(width,height,bpp,flags);
 131         OUTPUT:
 132                 RETVAL
 133
 134
 135 void
 136 video_update_rect ( surface, x, y, w ,h )
 137         SDL_Surface *surface
 138         int x
 139         int y
 140         int w
 141         int h
 142         CODE:
 143                 SDL_UpdateRect(surface,x,y,w,h);
 144
 145 void
 146 video_update_rects ( surface, ... )
 147         SDL_Surface *surface
 148         CODE:
 149                 SDL_Rect *rects;
 150                 int num_rects,i;
 151                 if ( items < 2 ) return;
 152                 num_rects = items - 1;
 153                 rects = (SDL_Rect *)safemalloc(sizeof(SDL_Rect)*items);
 154                 for(i=0;i<num_rects;i++) {
 155                         rects[i] = *(SDL_Rect *)SvIV((SV*)SvRV( ST(i + 1) ));
 156                 }
 157                 SDL_UpdateRects(surface,num_rects,rects);
 158                 safefree(rects);
 159
 160
 161 int
 162 video_flip ( surface )
 163         SDL_Surface *surface
 164         CODE:
 165                 RETVAL = SDL_Flip(surface);
 166         OUTPUT:
 167                 RETVAL
 168
 169 int
 170 video_set_colors ( surface, start, ... )
 171         SDL_Surface *surface
 172         int start
 173         CODE:
 174                 SDL_Color *colors,*temp;
 175                 int i, length;
 176                 if ( items < 3 ) { RETVAL = 0;}
 177                 else
 178                 {
 179                 length = items - 2;
 180                 colors = (SDL_Color *)safemalloc(sizeof(SDL_Color)*(length+1));
 181                 for ( i = 0; i < length ; i++ ) {
 182                         temp = (SDL_Color *)SvIV(ST(i+2));
 183                         colors[i].r = temp->r;
 184                         colors[i].g = temp->g;
 185                         colors[i].b = temp->b;
 186                 }
 187                 RETVAL = SDL_SetColors(surface, colors, start, length );
 188                 safefree(colors);
 189                 }
 190
 191         OUTPUT:
 192                 RETVAL
 193
 194 int
 195 video_set_palette ( surface, flags, start, ... )
 196         SDL_Surface *surface
 197         int flags
 198         int start
 199
 200         CODE:
 201                 SDL_Color *colors,*temp;
 202                 int i, length;
 203                 if ( items < 4 ) {
 204                 RETVAL = 0;
 205                         }
 206                 else
 207                 {
 208                 length = items - 3;
 209                 colors = (SDL_Color *)safemalloc(sizeof(SDL_Color)*(length+1));
 210                 for ( i = 0; i < length ; i++ ){
 211                         temp = (SDL_Color *)SvIV(ST(i+3));
 212                         colors[i].r = temp->r;
 213                         colors[i].g = temp->g;
 214                         colors[i].b = temp->b;
 215                 }
 216                 RETVAL = SDL_SetPalette(surface, flags, colors, start, length );
 217                 safefree(colors);
 218                 }
 219         OUTPUT:
 220                 RETVAL
 221
 222 int
 223 video_set_gamma(r, g, b)
 224         float r;
 225         float g;
 226         float b;
 227         CODE:
 228                 RETVAL = SDL_SetGamma(r,g,b);
 229         OUTPUT:
 230                 RETVAL
 231
 232
 233 int
 234 video_set_gamma_ramp( rt, gt, bt )
 235         AV* rt;
 236         AV* gt;
 237         AV* bt;
 238         CODE:
 239                 Uint16 *redtable, *greentable, *bluetable;
 240                 redtable = av_to_uint16(rt);
 241                 greentable = av_to_uint16(gt);
 242                 bluetable = av_to_uint16(bt);
 243                 RETVAL =  SDL_SetGammaRamp(redtable, greentable, bluetable);
 244                 if( redtable != NULL) { safefree(redtable); }
 245                 if( greentable != NULL) { safefree(greentable); }
 246                 if( bluetable != NULL) { safefree(bluetable); }
 247         OUTPUT:
 248                 RETVAL
 249