[sdlgit/SDL_perl.git] / src / Core / objects / Surface.xs

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#ifndef aTHX_
#define aTHX_
#endif

#include <SDL.h>

MODULE = SDL::Surface 	PACKAGE = SDL::Surface    PREFIX = surface_

=for documentation

SDL_Surface -- Graphic surface structure 

  typedef struct SDL_Surface {
      Uint32 flags;                           /* Read-only */
      SDL_PixelFormat *format;                /* Read-only */
      int w, h;                               /* Read-only */
      Uint16 pitch;                           /* Read-only */
      void *pixels;                           /* Read-write */
      SDL_Rect clip_rect;                     /* Read-only */
      int refcount;                           /* Read-mostly */

    /* This structure also contains private fields not shown here */
  } SDL_Surface;

=cut

SDL_Surface *
surface_new (CLASS, flags, width, height, depth, Rmask, Gmask, Bmask, Amask )
	char* CLASS
	Uint32 flags
	int width
	int height
	int depth
	Uint32 Rmask
	Uint32 Gmask
	Uint32 Bmask
	Uint32 Amask
	CODE:
		RETVAL = SDL_CreateRGBSurface ( flags, width, height,
				depth, Rmask, Gmask, Bmask, Amask );
	OUTPUT:
		RETVAL

SDL_PixelFormat *
surface_format ( surface )
	SDL_Surface *surface
	CODE:
		char* CLASS = "SDL::PixelFormat";
		RETVAL = surface->format;
	OUTPUT:
		RETVAL

void
surface_update_rects ( surface, ... )
	SDL_Surface *surface
	CODE:
		SDL_Rect *rects, *temp;
		int num_rects,i;
		if ( items < 2 ) return;
		num_rects = items - 1;
			
		rects = (SDL_Rect *)safemalloc(sizeof(SDL_Rect)*items);
		for(i=0;i<num_rects;i++) {
			temp = (SDL_Rect *)SvIV(ST(i+1));
			rects[i].x = temp->x;
			rects[i].y = temp->y;
			rects[i].w = temp->w;
			rects[i].h = temp->h;
		} 
		SDL_UpdateRects(surface,num_rects,rects);
		safefree(rects);

SDL_Surface *
surface_display ( surface )
	SDL_Surface *surface
	CODE:
		char* CLASS = "SDL::Surface";

		SDL_Surface *new_surface = SDL_DisplayFormat(surface);
		SDL_FreeSurface(surface);
		RETVAL = new_surface;	
	OUTPUT:
		RETVAL

SDL_Surface *
surface_display_alpha ( surface )
	SDL_Surface *surface
	CODE:
		char* CLASS = "SDL::Surface";
		SDL_Surface *new_surface = SDL_DisplayFormatAlpha(surface);
		SDL_FreeSurface(surface);
		RETVAL = new_surface;
	OUTPUT:
		RETVAL

Uint16
surface_pitch( surface )
	SDL_Surface *surface
	CODE:
		RETVAL = surface->pitch;
	OUTPUT:
		RETVAL

Uint16
surface_w ( surface )
	SDL_Surface *surface
	CODE:
		RETVAL = surface->w;
	OUTPUT:
		RETVAL

Uint16
surface_h ( surface )
	SDL_Surface *surface
	CODE:
		RETVAL = surface->h;
	OUTPUT:
		RETVAL

IV
surface_get_pixels(surface)
	SDL_Surface *surface
	CODE:
	  if(!surface->pixels) croak("Incomplete surface");
	  RETVAL = PTR2IV(surface->pixels);
	OUTPUT:
	  RETVAL

void
surface_set_pixels(surface, pixels)
	SDL_Surface *surface

	SV *pixels

	PREINIT:
	  STRLEN len;
	  void *p;

	CODE:
	  p = SvPV(pixels, len);
	  if (len > surface->pitch*surface->h)
		len = surface->pitch*surface->h;
	  memcpy(surface->pixels, p, len);

void
surface_DESTROY(surface)
	SDL_Surface *surface
	CODE:
		Uint8* pixels = surface->pixels;
		Uint32 flags = surface->flags;
		SDL_FreeSurface(surface);
		if (flags & SDL_PREALLOC)
			Safefree(pixels);
Commit	Line	Data
88a46efc	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
50d9130a	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
88a46efc	57	void
88a46efc	58	surface_update_rects ( surface, ... )
	59	SDL_Surface *surface
	60	CODE:
	61	SDL_Rect rects, temp;
	62	int num_rects,i;
	63	if ( items < 2 ) return;
	64	num_rects = items - 1;
	65
	66	rects = (SDL_Rect )safemalloc(sizeof(SDL_Rect)items);
	67	for(i=0;i<num_rects;i++) {
	68	temp = (SDL_Rect *)SvIV(ST(i+1));
	69	rects[i].x = temp->x;
	70	rects[i].y = temp->y;
	71	rects[i].w = temp->w;
	72	rects[i].h = temp->h;
	73	}
	74	SDL_UpdateRects(surface,num_rects,rects);
	75	safefree(rects);
	76
	77	SDL_Surface *
	78	surface_display ( surface )
	79	SDL_Surface *surface
	80	CODE:
41a5a9ee	81	char* CLASS = "SDL::Surface";
8fb66c78	82
	83	SDL_Surface *new_surface = SDL_DisplayFormat(surface);
	84	SDL_FreeSurface(surface);
	85	RETVAL = new_surface;
88a46efc	86	OUTPUT:
	87	RETVAL
	88
41a5a9ee	89	SDL_Surface *
	90	surface_display_alpha ( surface )
	91	SDL_Surface *surface
	92	CODE:
	93	char* CLASS = "SDL::Surface";
8fb66c78	94	SDL_Surface *new_surface = SDL_DisplayFormatAlpha(surface);
	95	SDL_FreeSurface(surface);
	96	RETVAL = new_surface;
41a5a9ee	97	OUTPUT:
	98	RETVAL
	99
88a46efc	100	Uint16
18ef5a29	101	surface_pitch( surface )
	102	SDL_Surface *surface
	103	CODE:
	104	RETVAL = surface->pitch;
	105	OUTPUT:
	106	RETVAL
	107
	108	Uint16
88a46efc	109	surface_w ( surface )
	110	SDL_Surface *surface
	111	CODE:
	112	RETVAL = surface->w;
	113	OUTPUT:
	114	RETVAL
	115
	116	Uint16
	117	surface_h ( surface )
	118	SDL_Surface *surface
	119	CODE:
	120	RETVAL = surface->h;
	121	OUTPUT:
	122	RETVAL
	123
18ef5a29	124	IV
	125	surface_get_pixels(surface)
	126	SDL_Surface *surface
	127	CODE:
b7ed9095	128	if(!surface->pixels) croak("Incomplete surface");
793e8806	129	RETVAL = PTR2IV(surface->pixels);
18ef5a29	130	OUTPUT:
793e8806	131	RETVAL
18ef5a29	132
	133	void
	134	surface_set_pixels(surface, pixels)
	135	SDL_Surface *surface
	136
	137	SV *pixels
	138
	139	PREINIT:
	140	STRLEN len;
	141	void *p;
	142
	143	CODE:
	144	p = SvPV(pixels, len);
	145	if (len > surface->pitch*surface->h)
	146	len = surface->pitch*surface->h;
	147	memcpy(surface->pixels, p, len);
	148
88a46efc	149	void
	150	surface_DESTROY(surface)
	151	SDL_Surface *surface
	152	CODE:
	153	Uint8* pixels = surface->pixels;
	154	Uint32 flags = surface->flags;
	155	SDL_FreeSurface(surface);
	156	if (flags & SDL_PREALLOC)
	157	Safefree(pixels);