Only update the shader point size in OpenGL ES 2 when it's been modified, rather than before every draw.

src/modules/graphics/opengl/OpenGL.cpp

@@ -331,7 +331,7 @@ void OpenGL::prepareDraw()
 		Matrix tp_matrix(curproj * curxform);
 		shader->sendBuiltinMatrix(Shader::BUILTIN_TRANSFORM_PROJECTION_MATRIX, 4, tp_matrix.getElements(), 1);
 
-		shader->sendBuiltinFloat(Shader::BUILTIN_POINT_SIZE, 1, &state.pointSize, 1);
+		shader->checkSetPointSize(state.pointSize);
 	}
 	else if (GLAD_VERSION_1_0)
 	{

src/modules/graphics/opengl/Shader.cpp

@@ -75,6 +75,7 @@ Shader::Shader(const ShaderSource &source)
 	, builtinAttributes()
 	, lastCanvas((Canvas *) -1)
 	, lastViewport()
+	, lastPointSize(0.0f)
 {
 	if (source.vertex.empty() && source.pixel.empty())
 		throw love::Exception("Cannot create shader: no source code!");
@@ -216,6 +217,8 @@ bool Shader::loadVolatile()
     lastCanvas = (Canvas *) -1;
     lastViewport = OpenGL::Viewport();
 
+	lastPointSize = 0.0f;
+
 	// zero out active texture list
 	activeTexUnits.clear();
 	activeTexUnits.insert(activeTexUnits.begin(), gl.getMaxTextureUnits() - 1, 0);
@@ -709,6 +712,16 @@ void Shader::checkSetScreenParams()
 	lastViewport = view;
 }
 
+void Shader::checkSetPointSize(float size)
+{
+	if (size == lastPointSize)
+		return;
+
+	sendBuiltinFloat(BUILTIN_POINT_SIZE, 1, &size, 1);
+
+	lastPointSize = size;
+}
+
 const std::map<std::string, Object *> &Shader::getBoundRetainables() const
 {
 	return boundRetainables;

src/modules/graphics/opengl/Shader.h

@@ -182,6 +182,7 @@ public:
 	bool sendBuiltinMatrix(BuiltinUniform builtin, int size, const GLfloat *m, int count);
 	bool sendBuiltinFloat(BuiltinUniform builtin, int size, const GLfloat *m, int count);
 	void checkSetScreenParams();
+	void checkSetPointSize(float size);
 
 	const std::map<std::string, Object *> &getBoundRetainables() const;
 
@@ -250,6 +251,8 @@ private:
 	Canvas *lastCanvas;
 	OpenGL::Viewport lastViewport;
 
+	float lastPointSize;
+
 	// Counts total number of textures bound to each texture unit in all shaders
 	static std::vector<int> textureCounters;