Removed love.graphics.setAlphaTest: incompatible with OpenGL ES 2+, core OpenGL 3+, and Direct3D 10+. Shaders can accomplish the same things and more.

src/modules/graphics/opengl/Graphics.h

@@ -74,10 +74,6 @@ struct DisplayState
 	float pointSize;
 	Graphics::PointStyle pointStyle;
 
-	bool alphaTest;
-	Graphics::AlphaTestMode alphaTestMode;
-	unsigned char alphaTestRef;
-
 	// Scissor.
 	bool scissor;
 	OpenGL::Viewport scissorBox;
@@ -94,7 +90,6 @@ struct DisplayState
 		lineStyle = Graphics::LINE_SMOOTH;
 		pointSize = 1.0f;
 		pointStyle = Graphics::POINT_SMOOTH;
-		alphaTest = false;
 		scissor = false;
 		colorMask[0] = colorMask[1] = colorMask[2] = colorMask[3] = true;
 	}
@@ -189,33 +184,6 @@ public:
 	 */
 	void discardStencil();
 
-	/**
-	 * Enables alpha testing for all following draw calls
-	 * @param mode The alpha comparison mode used when performing the alpha test
-	 * @param refalpha The reference alpha value used when perfoming the alpha test
-	 */
-	void setAlphaTest(Graphics::AlphaTestMode mode, unsigned char refalpha);
-
-	/**
-	 * Disables alpha testing
-	 */
-	void setAlphaTest();
-
-	/**
-	 * True if alpha testing is enabled
-	 */
-	bool isAlphaTestEnabled();
-
-	/**
-	 * Gets the current alpha test comparison mode
-	 */
-	Graphics::AlphaTestMode getAlphaTestMode();
-
-	/**
-	 * Gets the current alpha test reference alpha value (0-255)
-	 */
-	unsigned char getAlphaTestRef();
-
 	/**
 	 * Gets the maximum supported width or height of Images and Canvases on this
 	 * system.