Better boolean shader extern support

src/modules/graphics/opengl/wrap_ShaderEffect.cpp

@@ -48,10 +48,14 @@ static int _sendScalars(lua_State *L, ShaderEffect *effect, const char *name, in
 	float *values = new float[count];
 	for (int i = 0; i < count; ++i)
 	{
-		if (!lua_isnumber(L, 3 + i))
+		if (lua_isnumber(L, 3 + i))
+			values[i] = (float)lua_tonumber(L, 3 + i);
+		else if (lua_isboolean(L, 3 + i))
+			values[i] = (float)lua_toboolean(L, 3 + i);
+		else
 		{
 			delete[] values;
-			return luaL_typerror(L, 3 + i, "number");
+			return luaL_typerror(L, 3 + i, "number or boolean");
 		}
 		values[i] = (float)lua_tonumber(L, 3 + i);
 	}
@@ -92,7 +96,10 @@ static int _sendVectors(lua_State *L, ShaderEffect *effect, const char *name, in
 		for (size_t k = 1; k <= dimension; ++k)
 		{
 			lua_rawgeti(L, 3 + i, k);
-			values[i * dimension + k - 1] = (float)lua_tonumber(L, -1);
+			if (lua_isboolean(L, -1))
+				values[i * dimension + k - 1] = (float)lua_toboolean(L, -1);
+			else
+				values[i * dimension + k - 1] = (float)lua_tonumber(L, -1);
 		}
 		lua_pop(L, int(dimension));
 	}
@@ -120,12 +127,12 @@ int w_ShaderEffect_sendFloat(lua_State *L)
 	if (count < 1)
 		return luaL_error(L, "No variable to send.");
 
-	if (lua_isnumber(L, 3))
+	if (lua_isnumber(L, 3) || lua_isboolean(L, 3))
 		return _sendScalars(L, effect, name, count);
 	else if (lua_istable(L, 3))
 		return _sendVectors(L, effect, name, count);
 
-	return luaL_typerror(L, 3, "number or table");
+	return luaL_typerror(L, 3, "number, boolean or table");
 }
 
 int w_ShaderEffect_sendMatrix(lua_State *L)

src/scripts/graphics.lua

@@ -1441,22 +1441,21 @@ void main() {
 	-- automagic uniform setter
 	local function shadereffect_dispatch_send(self, name, value, ...)
 		local valuetype = type(value)
-		if valuetype == "number" then         -- scalar
+		if valuetype == "number" or valuetype == "boolean" then -- scalar
 			self:sendFloat(name, value, ...)
 		elseif valuetype == "userdata" and value:typeOf("Image") then
 			self:sendImage(name, value)
 		elseif valuetype == "userdata" and value:typeOf("Canvas") then
 			self:sendCanvas(name, value)
 		elseif valuetype == "table" then      -- vector or matrix
-			if type(value[1]) == "number" then
+			valuetype = type(value[1])
+			if valuetype == "number" or valuetype == "boolean" then
 				self:sendFloat(name, value, ...)
-			elseif type(value[1]) == "table" then
+			elseif valuetype == "table" then
 				self:sendMatrix(name, flattenMatrices(value, ...))
 			else
-				error("Cannot send value (unsupported type: {"..type(value[1]).."}).")
+				error("Cannot send value (unsupported type: {"..valuetype.."}).")
 			end
-		elseif valuetype == "boolean" then
-			self:sendFloat(name, value and 1 or 0)
 		else
 			if valuetype == "userdata" and value.type then valuetype = value.type end
 			error("Cannot send value (unsupported type: "..valuetype..").")
@@ -1480,6 +1479,7 @@ void main() {
 		local effect = love.graphics.newShaderEffect(vertcode, fragcode)
 		local meta = getmetatable(effect)
 		meta.send = shadereffect_dispatch_send
+		meta.sendBoolean = meta.sendFloat
 		return effect
 	end
 

src/scripts/graphics.lua.h

@@ -6560,8 +6560,9 @@ const unsigned char graphics_lua[] =
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@@ -6580,29 +6581,25 @@ const unsigned char graphics_lua[] =
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@@ -6658,6 +6655,8 @@ const unsigned char graphics_lua[] =
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