src/Core/objects/Surface.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 MODULE = SDL::Surface   PACKAGE = SDL::Surface    PREFIX = surface_
  12
  13 =for documentation
  14
  15 SDL_Surface -- Graphic surface structure
  16
  17   typedef struct SDL_Surface {
  18       Uint32 flags;                           /* Read-only */
  19       SDL_PixelFormat *format;                /* Read-only */
  20       int w, h;                               /* Read-only */
  21       Uint16 pitch;                           /* Read-only */
  22       void *pixels;                           /* Read-write */
  23       SDL_Rect clip_rect;                     /* Read-only */
  24       int refcount;                           /* Read-mostly */
  25
  26     /* This structure also contains private fields not shown here */
  27   } SDL_Surface;
  28
  29 =cut
  30
  31 SDL_Surface *
  32 surface_new (CLASS, flags, width, height, depth, Rmask, Gmask, Bmask, Amask )
  33         char* CLASS
  34         Uint32 flags
  35         int width
  36         int height
  37         int depth
  38         Uint32 Rmask
  39         Uint32 Gmask
  40         Uint32 Bmask
  41         Uint32 Amask
  42         CODE:
  43                 RETVAL = SDL_CreateRGBSurface ( flags, width, height,
  44                                 depth, Rmask, Gmask, Bmask, Amask );
  45         OUTPUT:
  46                 RETVAL
  47
  48 int
  49 surface_blit ( src, src_rect, dest, dest_rect )
  50         SDL_Surface *src
  51         SDL_Surface *dest
  52         SDL_Rect *src_rect
  53         SDL_Rect *dest_rect
  54         CODE:
  55                 RETVAL = SDL_BlitSurface(src,src_rect,dest,dest_rect);
  56         OUTPUT:
  57                 RETVAL
  58
  59 int
  60 surface_fill_rect ( dest, dest_rect, color )
  61         SDL_Surface *dest
  62         SDL_Color *color
  63         SDL_Rect *dest_rect
  64         CODE:
  65                 Uint32 pixel = SDL_MapRGB(dest->format,color->r,color->g,color->b);
  66                 RETVAL = SDL_FillRect(dest,dest_rect,pixel);
  67         OUTPUT:
  68                 RETVAL
  69
  70 void
  71 surface_update_rect ( surface, x, y, w ,h )
  72         SDL_Surface *surface
  73         int x
  74         int y
  75         int w
  76         int h
  77         CODE:
  78                 SDL_UpdateRect(surface,x,y,w,h);
  79
  80 void
  81 surface_update_rects ( surface, ... )
  82         SDL_Surface *surface
  83         CODE:
  84                 SDL_Rect *rects, *temp;
  85                 int num_rects,i;
  86                 if ( items < 2 ) return;
  87                 num_rects = items - 1;
  88
  89                 rects = (SDL_Rect *)safemalloc(sizeof(SDL_Rect)*items);
  90                 for(i=0;i<num_rects;i++) {
  91                         temp = (SDL_Rect *)SvIV(ST(i+1));
  92                         rects[i].x = temp->x;
  93                         rects[i].y = temp->y;
  94                         rects[i].w = temp->w;
  95                         rects[i].h = temp->h;
  96                 }
  97                 SDL_UpdateRects(surface,num_rects,rects);
  98                 safefree(rects);
  99
 100 SDL_Surface *
 101 surface_display ( surface )
 102         SDL_Surface *surface
 103         CODE:
 104                 char* CLASS = "SDL::Surface";
 105                 RETVAL = SDL_DisplayFormat(surface);
 106         OUTPUT:
 107                 RETVAL
 108
 109 SDL_Surface *
 110 surface_display_alpha ( surface )
 111         SDL_Surface *surface
 112         CODE:
 113                 char* CLASS = "SDL::Surface";
 114                 RETVAL = SDL_DisplayFormatAlpha(surface);
 115         OUTPUT:
 116                 RETVAL
 117
 118 Uint16
 119 surface_pitch( surface )
 120         SDL_Surface *surface
 121         CODE:
 122                 RETVAL = surface->pitch;
 123         OUTPUT:
 124                 RETVAL
 125
 126 Uint16
 127 surface_w ( surface )
 128         SDL_Surface *surface
 129         CODE:
 130                 RETVAL = surface->w;
 131         OUTPUT:
 132                 RETVAL
 133
 134 Uint16
 135 surface_h ( surface )
 136         SDL_Surface *surface
 137         CODE:
 138                 RETVAL = surface->h;
 139         OUTPUT:
 140                 RETVAL
 141
 142 IV
 143 surface_get_pixels(surface)
 144         SDL_Surface *surface
 145         CODE:
 146           if(!surface->pixels) croak("Incomplete surface");
 147           RETVAL = PTR2IV(surface->pixels);
 148         OUTPUT:
 149           RETVAL
 150
 151 void
 152 surface_set_pixels(surface, pixels)
 153         SDL_Surface *surface
 154
 155         SV *pixels
 156
 157         PREINIT:
 158           STRLEN len;
 159           void *p;
 160
 161         CODE:
 162           p = SvPV(pixels, len);
 163           if (len > surface->pitch*surface->h)
 164                 len = surface->pitch*surface->h;
 165           memcpy(surface->pixels, p, len);
 166
 167 void
 168 surface_DESTROY(surface)
 169         SDL_Surface *surface
 170         CODE:
 171                 Uint8* pixels = surface->pixels;
 172                 Uint32 flags = surface->flags;
 173                 SDL_FreeSurface(surface);
 174                 if (flags & SDL_PREALLOC)
 175                         Safefree(pixels);