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 SDL_PixelFormat *
  49 surface_format ( surface )
  50         SDL_Surface *surface
  51         CODE:
  52                 char* CLASS = "SDL::PixelFormat";
  53                 RETVAL = surface->format;
  54         OUTPUT:
  55                 RETVAL
  56
  57 Uint16
  58 surface_pitch( surface )
  59         SDL_Surface *surface
  60         CODE:
  61                 RETVAL = surface->pitch;
  62         OUTPUT:
  63                 RETVAL
  64
  65 Uint16
  66 surface_w ( surface )
  67         SDL_Surface *surface
  68         CODE:
  69                 RETVAL = surface->w;
  70         OUTPUT:
  71                 RETVAL
  72
  73 Uint16
  74 surface_h ( surface )
  75         SDL_Surface *surface
  76         CODE:
  77                 RETVAL = surface->h;
  78         OUTPUT:
  79                 RETVAL
  80
  81 IV
  82 surface_get_pixels(surface)
  83         SDL_Surface *surface
  84         CODE:
  85           if(!surface->pixels) croak("Incomplete surface");
  86           RETVAL = PTR2IV(surface->pixels);
  87         OUTPUT:
  88           RETVAL
  89
  90 void
  91 surface_set_pixels(surface, pixels)
  92         SDL_Surface *surface
  93
  94         SV *pixels
  95
  96         PREINIT:
  97           STRLEN len;
  98           void *p;
  99
 100         CODE:
 101           p = SvPV(pixels, len);
 102           if (len > surface->pitch*surface->h)
 103                 len = surface->pitch*surface->h;
 104           memcpy(surface->pixels, p, len);
 105
 106 void
 107 surface_DESTROY(surface)
 108         SDL_Surface *surface
 109         CODE:
 110                 Uint8* pixels = surface->pixels;
 111                 Uint32 flags = surface->flags;
 112                 SDL_FreeSurface(surface);
 113                 if (flags & SDL_PREALLOC)
 114                         Safefree(pixels);