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Added Canvas:getPixel(x, y). (pull request #17)

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This commit is contained in:
rude
2012-10-17 21:33:10 -04:00
parent 4e2c424cd1
commit ba4cf6204d
4 changed files with 37 additions and 0 deletions
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src/modules/graphics/opengl/wrap_Canvas.cpp
+22
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@@ -64,6 +64,27 @@ int w_Canvas_getImageData(lua_State *L)
return 1;
}
int w_Canvas_getPixel(lua_State * L)
{
Canvas * canvas = luax_checkcanvas(L, 1);
int x = luaL_checkint(L, 2);
int y = luaL_checkint(L, 3);
unsigned char c[4];
try
{
canvas->getPixel(c, x, y);
}
catch (love::Exception & e)
{
return luaL_error(L, "%s", e.what());
}
lua_pushnumber(L, c[0]);
lua_pushnumber(L, c[1]);
lua_pushnumber(L, c[2]);
lua_pushnumber(L, c[3]);
return 4;
}
int w_Canvas_setFilter(lua_State *L)
{
Canvas *canvas = luax_checkcanvas(L, 1);
@@ -202,6 +223,7 @@ static const luaL_Reg functions[] =
{
{ "renderTo", w_Canvas_renderTo },
{ "getImageData", w_Canvas_getImageData },
{ "getPixel", w_Canvas_getPixel },
{ "setFilter", w_Canvas_setFilter },
{ "getFilter", w_Canvas_getFilter },
{ "setWrap", w_Canvas_setWrap },