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Fix of http://bitbucket.org/bartbes/love-fbo/issue/7

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Move fbo:grab() to love.graphics.setRenderTarget( fbo )
Move fbo:stop() to love.graphics.setRenderTarget( nil )

Rename fbo:render( func ) to fbo:renderTo( func )
This commit is contained in:
vrld
2010-08-26 20:44:30 +02:00
parent 98feae1950
commit 320ac05fd1
6 changed files with 67 additions and 56 deletions
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src/modules/graphics/opengl/wrap_Framebuffer.cpp
+11 -33
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@@ -11,51 +11,29 @@ namespace opengl
return luax_checktype<Framebuffer>(L, idx, "Framebuffer", GRAPHICS_FRAMEBUFFER_T);
}
int w_Framebuffer_render(lua_State * L)
int w_Framebuffer_renderTo(lua_State * L)
{
// As startGrab() clears the framebuffer, better not allow
// grabbing inside another grabbing
if (Framebuffer::current != NULL) {
Framebuffer::bindDefaultBuffer();
return luaL_error(L, "Current render target not the default framebuffer!");
}
Framebuffer * fbo = luax_checkfbo(L, 1);
if (!lua_isfunction(L, 2))
return luaL_error(L, "Need a function to render to fbo");
// prevent nesting
if (!fbo->grab()) {
fbo->stop(); // stop grabbing so errormessage is shown
return luaL_error(L, "Framebuffer:grab(): Cannot grab screen. Be sure to match every Framebuffer:grab() with Framebuffer:stop().");
}
fbo->startGrab();
lua_settop(L, 2); // make sure the function is on top of the stack
lua_call(L, 0, 0);
fbo->stopGrab();
// fbo can be stopped in function.
if (!fbo->stop())
return luaL_error(L, "Framebuffer:render(): Screengrabbing already stopped.");
return 0;
}
int w_Framebuffer_grab(lua_State * L)
{
Framebuffer * fbo = luax_checkfbo(L, 1);
// prevent nesting
if (!fbo->grab()) {
fbo->stop(); // stop grabbing so errormessage is shown
return luaL_error(L, "Framebuffer:grab(): Cannot grab screen. Be sure to match every Framebuffer:grab() with Framebuffer:stop().");
}
return 0;
}
int w_Framebuffer_stop(lua_State * L)
{
Framebuffer * fbo = luax_checkfbo(L, 1);
if (!fbo->stop())
return luaL_error(L, "Framebuffer:stop(): Screengrabbing already stopped.");
return 0;
}
static const luaL_Reg functions[] = {
{ "render", w_Framebuffer_render },
{ "grab", w_Framebuffer_grab },
{ "stop", w_Framebuffer_stop },
{ "renderTo", w_Framebuffer_renderTo },
{ 0, 0 }
};