Renamed Shader:getExternVariable to Shader:getUniformVariable. The "extern" alias for shader uniforms is considered deprecated, although it still exists.

--HG--
branch : minor

src/modules/graphics/opengl/Shader.cpp

@@ -621,7 +621,7 @@ int Shader::getTextureUnit(const std::string &name)
 	return texunit;
 }
 
-Shader::UniformType Shader::getExternVariable(const std::string &name, int &components, int &count)
+Shader::UniformType Shader::getUniformVariable(const std::string &name, int &components, int &count)
 {
 	auto it = uniforms.find(name);
 

src/modules/graphics/opengl/Shader.h

@@ -55,7 +55,7 @@ public:
 		STAGE_MAX_ENUM
 	};
 
-	// Built-in uniform (extern) variables.
+	// Built-in uniform variables.
 	enum BuiltinUniform
 	{
 		BUILTIN_TRANSFORM_MATRIX = 0,
@@ -70,7 +70,7 @@ public:
 		BUILTIN_MAX_ENUM
 	};
 
-	// Types of potential uniform (extern) variables used in love's shaders.
+	// Types of potential uniform variables used in love's shaders.
 	enum UniformType
 	{
 		UNIFORM_FLOAT,
@@ -169,16 +169,16 @@ public:
 
 	/**
 	 * Gets the type, number of components, and number of array elements of
-	 * an active 'extern' (uniform) variable in the shader. If a uniform
-	 * variable with the specified name doesn't exist, returns UNIFORM_UNKNOWN
-	 * and sets the 'components' and 'count' values to 0.
+	 * an active uniform variable in the shader. If a uniform variable with the
+	 * specified name doesn't exist, returns UNIFORM_UNKNOWN and sets the
+	 * 'components' and 'count' values to 0.
 	 *
 	 * @param name The name of the uniform variable in the source code.
 	 * @param[out] components Number of components of the variable (2 for vec2.)
 	 * @param[out] count Number of array elements, if the variable is an array.
 	 * @return The base type of the uniform variable.
 	 **/
-	UniformType getExternVariable(const std::string &name, int &components, int &count);
+	UniformType getUniformVariable(const std::string &name, int &components, int &count);
 
 	GLint getAttribLocation(const std::string &name);
 
@@ -221,7 +221,7 @@ public:
 
 private:
 
-	// Represents a single uniform/extern shader variable.
+	// Represents a single uniform shader variable.
 	struct Uniform
 	{
 		GLint location;

src/modules/graphics/opengl/wrap_Shader.cpp

@@ -324,7 +324,7 @@ int w_Shader_send(lua_State *L)
 	return luaL_argerror(L, 3, "number, boolean, table, image, or canvas expected");
 }
 
-int w_Shader_getExternVariable(lua_State *L)
+int w_Shader_getUniformVariable(lua_State *L)
 {
 	Shader *shader = luax_checkshader(L, 1);
 	const char *name = luaL_checkstring(L, 2);
@@ -333,14 +333,14 @@ int w_Shader_getExternVariable(lua_State *L)
 	int arrayelements = 0;
 	Shader::UniformType type = Shader::UNIFORM_UNKNOWN;
 
-	type = shader->getExternVariable(name, components, arrayelements);
+	type = shader->getUniformVariable(name, components, arrayelements);
 
 	// Check if the variable exists (function will set components to 0 if not.)
 	if (components > 0)
 	{
 		const char *tname = nullptr;
 		if (!Shader::getConstant(type, tname))
-			return luaL_error(L, "Unknown extern variable type name.");
+			return luaL_error(L, "Unknown uniform variable type name.");
 
 		lua_pushstring(L, tname);
 		lua_pushinteger(L, components);
@@ -366,7 +366,7 @@ static const luaL_Reg w_Shader_functions[] =
 	{ "sendMatrix",  w_Shader_sendMatrix },
 	{ "sendTexture", w_Shader_sendTexture },
 	{ "send",        w_Shader_send },
-	{ "getExternVariable", w_Shader_getExternVariable },
+	{ "getUniformVariable", w_Shader_getUniformVariable },
 	{ 0, 0 }
 };