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luaengine: add pixels (nw)

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This commit is contained in:
cracyc 2018-11-04 18:44:27 -06:00
parent 6371127423
commit 781bbdf1dc
1 changed files with 11 additions and 0 deletions
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11
src/frontend/mame/luaengine.cpp Normal file → Executable file
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@ -1743,6 +1743,7 @@ void lua_engine::initialize()
* screen:xscale() - screen x scale factor
* screen:yscale() - screen y scale factor
* screen:pixel(x, y) - get pixel at (x, y) as packed RGB in a u32
* screen:pixels() - get whole screen bitmap as string
*/
sol().registry().new_usertype<screen_device>("screen_dev", "new", sol::no_constructor,
@ -1858,6 +1859,16 @@ void lua_engine::initialize()
"yscale", &screen_device::yscale,
"pixel", [](screen_device &sdev, float x, float y) {
return sdev.pixel((s32)x, (s32)y);
},
"pixels", [this](screen_device &sdev, sol::this_state s) {
lua_State *L = s;
const rectangle &visarea = sdev.visible_area();
luaL_Buffer buff;
int size = visarea.height() * visarea.width() * 4;
u32 *ptr = (u32 *)luaL_buffinitsize(L, &buff, size);
sdev.pixels(ptr);
luaL_pushresultsize(&buff, size);
return sol::make_reference(L, sol::stack_reference(L, -1));
}
);