Refactor lovr.graphics.getDimensions and friends;

src/graphics/graphics.c

@@ -318,8 +318,16 @@ void lovrGraphicsMatrixTransform(mat4 transform) {
   mat4_multiply(vec_last(&state.transforms), transform);
 }
 
-void lovrGraphicsGetDimensions(int* width, int* height) {
-  glfwGetFramebufferSize(window, width, height);
+int lovrGraphicsGetWidth() {
+  int width;
+  glfwGetFramebufferSize(window, &width, NULL);
+  return width;
+}
+
+int lovrGraphicsGetHeight() {
+  int height;
+  glfwGetFramebufferSize(window, NULL, &height);
+  return height;
 }
 
 void lovrGraphicsSetShapeData(float* data, int dataCount, unsigned int* indices, int indicesCount) {

src/graphics/graphics.h

@@ -92,7 +92,8 @@ void lovrGraphicsRotate(float w, float x, float y, float z);
 void lovrGraphicsScale(float x, float y, float z);
 void lovrGraphicsTransform(float tx, float ty, float tz, float sx, float sy, float sz, float angle, float ax, float ay, float az);
 void lovrGraphicsMatrixTransform(mat4 transform);
-void lovrGraphicsGetDimensions(int* width, int* height);
+int lovrGraphicsGetWidth();
+int lovrGraphicsGetHeight();
 void lovrGraphicsSetShapeData(float* data, int dataCount, unsigned int* indices, int indicesCount);
 void lovrGraphicsDrawLinedShape(GLenum mode);
 void lovrGraphicsDrawFilledShape();

src/lovr/graphics.c

@@ -421,24 +421,18 @@ int l_lovrGraphicsCube(lua_State* L) {
 }
 
 int l_lovrGraphicsGetWidth(lua_State* L) {
-  int width;
-  lovrGraphicsGetDimensions(&width, NULL);
-  lua_pushnumber(L, width);
+  lua_pushnumber(L, lovrGraphicsGetWidth());
   return 1;
 }
 
 int l_lovrGraphicsGetHeight(lua_State* L) {
-  int height;
-  lovrGraphicsGetDimensions(NULL, &height);
-  lua_pushnumber(L, height);
+  lua_pushnumber(L, lovrGraphicsGetHeight());
   return 1;
 }
 
 int l_lovrGraphicsGetDimensions(lua_State* L) {
-  int width, height;
-  lovrGraphicsGetDimensions(&width, &height);
-  lua_pushnumber(L, width);
-  lua_pushnumber(L, height);
+  lua_pushnumber(L, lovrGraphicsGetWidth());
+  lua_pushnumber(L, lovrGraphicsGetHeight());
   return 2;
 }