Initial support for writing to textures in compute shaders.

src/modules/graphics/wrap_Texture.cpp

@@ -279,6 +279,20 @@ int w_Texture_getFormat(lua_State *L)
 	return 1;
 }
 
+int w_Texture_isRenderTarget(lua_State *L)
+{
+	Texture *t = luax_checktexture(L, 1);
+	luax_pushboolean(L, t->isRenderTarget());
+	return 1;
+}
+
+int w_Texture_isComputeWritable(lua_State *L)
+{
+	Texture *t = luax_checktexture(L, 1);
+	luax_pushboolean(L, t->isComputeWritable());
+	return 1;
+}
+
 int w_Texture_isReadable(lua_State *L)
 {
 	Texture *t = luax_checktexture(L, 1);
@@ -479,6 +493,8 @@ const luaL_Reg w_Texture_functions[] =
 	{ "setWrap", w_Texture_setWrap },
 	{ "getWrap", w_Texture_getWrap },
 	{ "getFormat", w_Texture_getFormat },
+	{ "isRenderTarget", w_Texture_isRenderTarget },
+	{ "isComputeWritable", w_Texture_isComputeWritable },
 	{ "isReadable", w_Texture_isReadable },
 	{ "getMipmapMode", w_Texture_getMipmapMode },
 	{ "getDepthSampleMode", w_Texture_getDepthSampleMode },