int RenderTargetBinder::getPixels(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
int x = luaL_optinteger(L, 2, 0);
int y = luaL_optinteger(L, 3, 0);
unsigned int w = luaL_optinteger(L, 4, renderTarget->data->width);
unsigned int h = luaL_optinteger(L, 5, renderTarget->data->height);
size_t bsize=w*h*4;
void *buffer=malloc(bsize);
memset(buffer,0xFF,bsize);
if (x<0)
{
w=w+x;
x=0;
}
if (y<0)
{
h=h+y;
y=0;
}
if ((w>0)&&(h>0))
renderTarget->getPixels(x,y,w,h,buffer);
lua_pushlstring(L,(char *)buffer,bsize);
free(buffer);
return 1;
}
int RenderTargetBinder::draw(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
Sprite *sprite = static_cast<Sprite*>(binder.getInstance("Sprite", 2));
Matrix4 xform;
if (binder.isInstanceOf("Matrix",3))
{
Transform *mat = static_cast<Transform*>(binder.getInstance("Matrix", 3));
xform=mat->matrix();
}
else
{
lua_Number x=luaL_optnumber(L,3,0);
lua_Number y=luaL_optnumber(L,4,0);
lua_Number z=luaL_optnumber(L,5,0);
xform.translate(x,y,z);
}
renderTarget->draw(sprite,xform);
return 0;
}
int RenderTargetBinder::save(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
const char *filename=luaL_checkstring(L,2);
int x = luaL_optinteger(L, 3, 0);
int y = luaL_optinteger(L, 4, 0);
unsigned int w = luaL_optinteger(L, 5, renderTarget->data->width);
unsigned int h = luaL_optinteger(L, 6, renderTarget->data->height);
if (x<0)
{
w=w+x;
x=0;
}
if (y<0)
{
h=h+y;
y=0;
}
if ((w>0)&&(h>0))
{
renderTarget->save(filename,x,y,w,h);
}
//TODO error reporting
return 0;
}
int RenderTargetBinder::draw(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
Sprite *sprite = static_cast<Sprite*>(binder.getInstance("Sprite", 2));
renderTarget->draw(sprite);
return 0;
}
int RenderTargetBinder::clear(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
unsigned int color = luaL_checkinteger(L, 2);
float alpha = luaL_optnumber(L, 3, 1.0);
int x=luaL_optinteger(L,4,0);
int y=luaL_optinteger(L,5,0);
int w=luaL_optinteger(L,6,-1);
int h=luaL_optinteger(L,7,-1);
renderTarget->clear(color, alpha, x, y, w, h);
return 0;
}
int RenderTargetBinder::getPixel(lua_State *L)
{
Binder binder(L);
GRenderTarget *renderTarget = static_cast<GRenderTarget*>(binder.getInstance("RenderTarget", 1));
int x = luaL_checkinteger(L, 2);
int y = luaL_checkinteger(L, 3);
unsigned char pixel[4]={0xFF,0xFF,0xFF,0xFF};
if ((x>=0)&&(y>=0))
renderTarget->getPixels(x,y,1,1,pixel);
lua_pushnumber(L,(pixel[0]<<16)|(pixel[1]<<8)|(pixel[2]<<0));
lua_pushnumber(L,((float)pixel[3])/255.0);
return 2;
}
