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/*
Ruby/SDL Ruby extension library for SDL
Copyright (C) 2001 Ohbayashi Ippei
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_SGE
#include "rubysdl.h"
#include <sge.h>
static VALUE sdl_get_autoLocking(VALUE mod)
{
return BOOL(sge_getLock());
}
static VALUE sdl_set_autoLocking(VALUE mod,VALUE bool)
{
if(RTEST(bool))
sge_Lock_ON();
else
sge_Lock_OFF();
return Qnil;
}
static VALUE sdl_getPixel(VALUE obj,VALUE x,VALUE y)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
return UINT2NUM( sge_GetPixel(surface,NUM2INT(x),NUM2INT(y)) );
}
static VALUE sdl_putPixel(VALUE obj,VALUE x,VALUE y,VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_PutPixel(surface,NUM2INT(x),NUM2INT(y),VALUE2COLOR(color,surface->format));
return Qnil;
}
static VALUE sdl_drawLine(VALUE obj,VALUE x1,VALUE y1,VALUE x2,VALUE y2,VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_Line( surface,NUM2INT(x1),NUM2INT(y1),NUM2INT(x2),NUM2INT(y2),
VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_drawRect(VALUE obj,VALUE x,VALUE y,VALUE w,VALUE h,VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_Rect( surface,NUM2INT(x),NUM2INT(y),NUM2INT(x)+NUM2INT(w),
NUM2INT(y)+NUM2INT(h),VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_drawCircle(VALUE obj,VALUE x,VALUE y,VALUE r,VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_Circle( surface,NUM2INT(x),NUM2INT(y),NUM2INT(r),
VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_drawFilledCircle(VALUE obj,VALUE x,VALUE y,VALUE r,VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_FilledCircle( surface,NUM2INT(x),NUM2INT(y),NUM2INT(r),
VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_drawEllipse(VALUE obj,VALUE x,VALUE y,VALUE rx,VALUE ry,
VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_Ellipse( surface,NUM2INT(x),NUM2INT(y),NUM2INT(rx),NUM2INT(ry),
VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_drawFilledEllipse(VALUE obj,VALUE x,VALUE y,VALUE rx,VALUE ry,
VALUE color)
{
SDL_Surface *surface;
Data_Get_Struct(obj,SDL_Surface,surface);
sge_FilledEllipse( surface,NUM2INT(x),NUM2INT(y),NUM2INT(rx),NUM2INT(ry),
VALUE2COLOR(color,surface->format) );
return Qnil;
}
static VALUE sdl_rotateScaledSurface(VALUE obj,VALUE angle,VALUE scale,VALUE bgcolor)
{
SDL_Surface *surface,*result;
Data_Get_Struct(obj,SDL_Surface,surface);
result=sge_rotate_scaled_surface(surface,NUM2INT(angle),NUM2DBL(scale),
VALUE2COLOR(bgcolor,surface->format) );
if( result==NULL )
rb_raise( eSDLError,"Couldn't Create Surface: %s",SDL_GetError() );
return Data_Wrap_Struct(cSurface,0,SDL_FreeSurface,result);
}
/* doesn't respect ColorKey */
static VALUE sdl_rotateXYScaled(VALUE mod,VALUE src,VALUE dst,VALUE x,
VALUE y,VALUE angle,VALUE xscale,
VALUE yscale)
{
SDL_Surface *srcSurface,*dstSurface;
if( !rb_obj_is_kind_of(src,cSurface) || !rb_obj_is_kind_of(dst,cSurface) )
rb_raise(rb_eArgError,"type mismatch(expect Surface)");
Data_Get_Struct(src,SDL_Surface,srcSurface);
Data_Get_Struct(dst,SDL_Surface,dstSurface);
sge_rotate_xyscaled(dstSurface,srcSurface,NUM2INT(x),NUM2INT(y),
NUM2INT(angle),NUM2DBL(xscale),NUM2DBL(yscale));
return Qnil;
}
static VALUE sdl_rotateScaledBlit(VALUE mod,VALUE src,VALUE dst,VALUE x,
VALUE y,VALUE angle,VALUE scale)
{
SDL_Surface *srcSurface,*dstSurface,*tmpSurface;
SDL_Rect destRect;
Uint32 colorkey;
Uint32 flags;
int result;
if( !rb_obj_is_kind_of(src,cSurface) || !rb_obj_is_kind_of(dst,cSurface) )
rb_raise(rb_eArgError,"type mismatch(expect Surface)");
Data_Get_Struct(src,SDL_Surface,srcSurface);
Data_Get_Struct(dst,SDL_Surface,dstSurface);
colorkey=srcSurface->format->colorkey;
flags = srcSurface->flags & ( SDL_RLEACCEL|SDL_SRCCOLORKEY );
tmpSurface = sge_rotate_scaled_surface(srcSurface,NUM2INT(angle),
NUM2DBL(scale),colorkey);
if( tmpSurface==NULL )
rb_raise(eSDLError,"SDL memory allocate failed :%s",SDL_GetError());
SDL_SetColorKey(tmpSurface,flags,colorkey);
destRect.x=NUM2INT(x)-tmpSurface->h/2;
destRect.y=NUM2INT(y)-tmpSurface->w/2;
result = SDL_BlitSurface(tmpSurface,NULL,dstSurface,&destRect);
SDL_FreeSurface(tmpSurface);
if( result == -1 ){
rb_raise(eSDLError,"SDL_BlitSurface fail: %s",SDL_GetError());
}
return INT2NUM(result);
}
static VALUE sdl_transform(VALUE mod,VALUE src,VALUE dst,VALUE angle,
VALUE xscale,VALUE yscale,VALUE px,VALUE py,
VALUE qx,VALUE qy,VALUE flags)
{
SDL_Surface *srcSurface,*dstSurface;
if( !rb_obj_is_kind_of(src,cSurface) || !rb_obj_is_kind_of(dst,cSurface) )
rb_raise(rb_eArgError,"type mismatch(expect Surface)");
Data_Get_Struct(src,SDL_Surface,srcSurface);
Data_Get_Struct(dst,SDL_Surface,dstSurface);
sge_transform(srcSurface,dstSurface,NUM2DBL(angle),NUM2DBL(xscale),
NUM2DBL(yscale),NUM2INT(px),NUM2INT(py),NUM2INT(qx),
NUM2INT(qy),NUM2UINT(flags));
return Qnil;
}
static VALUE sdl_transformSurface(VALUE obj,VALUE bgcolor,VALUE angle,
VALUE xscale,VALUE yscale,VALUE flags)
{
SDL_Surface *surface,*result;
Data_Get_Struct(obj,SDL_Surface,surface);
result = sge_transform_surface(surface,VALUE2COLOR(bgcolor,surface->format),
NUM2DBL(angle),NUM2DBL(xscale),
NUM2DBL(yscale),NUM2UINT(flags));
if( result==NULL )
rb_raise( eSDLError,"Couldn't Create Surface: %s",SDL_GetError() );
return Data_Wrap_Struct(cSurface,0,SDL_FreeSurface,result);
}
static void defineConstForSGE()
{
rb_define_const(mSDL,"TRANSFORM_AA",UINT2NUM(SGE_TAA));
rb_define_const(mSDL,"TRANSFORM_SAFE",UINT2NUM(SGE_TSAFE));
rb_define_const(mSDL,"TRANSFORM_TMAP",UINT2NUM(SGE_TTMAP));
}
void init_sge_video()
{
sge_Update_OFF();
sge_Lock_ON();
defineConstForSGE();
rb_define_module_function(mSDL,"autoLock",sdl_get_autoLocking,0);
rb_define_module_function(mSDL,"autoLock=",sdl_set_autoLocking,1);
rb_define_method(cSurface,"getPixel",sdl_getPixel,2);
rb_define_method(cSurface,"putPixel",sdl_putPixel,3);
rb_define_method(cSurface,"[]",sdl_getPixel,2);
rb_define_method(cSurface,"[]=",sdl_putPixel,3);
rb_define_method(cSurface,"drawLine",sdl_drawLine,5);
rb_define_method(cSurface,"drawRect",sdl_drawRect,5);
rb_define_method(cSurface,"drawCircle",sdl_drawCircle,4);
rb_define_method(cSurface,"drawFilledCircle",sdl_drawFilledCircle,4);
rb_define_method(cSurface,"drawEllispe",sdl_drawEllipse,5);
rb_define_method(cSurface,"drawFilledEllispe",sdl_drawFilledEllipse,5);
rb_define_method(cSurface,"rotateScaledSurface",sdl_rotateScaledSurface,3);
rb_define_module_function(mSDL,"rotateScaledBlit",sdl_rotateScaledBlit,6);
rb_define_module_function(mSDL,"rotateXYScaled",sdl_rotateXYScaled,7);
rb_define_module_function(mSDL,"transform",sdl_transform,10);
rb_define_method(cSurface,"transformSurface",sdl_transformSurface,5);
}
#endif /* HAVE_SGE */
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