Add Multiply blend mode for D2K move-flash and shroud.

2013-12-11 08:58:46 +13:00
parent 89d1d17b80
commit 089973280d
6 changed files with 21 additions and 7 deletions
--- a/OpenRA.Renderer.Sdl2/Sdl2GraphicsDevice.cs
+++ b/OpenRA.Renderer.Sdl2/Sdl2GraphicsDevice.cs
@@ -177,6 +177,12 @@ namespace OpenRA.Renderer.Sdl2
 					ErrorHandler.CheckGlError();
 					Gl.glBlendEquation(Gl.GL_FUNC_REVERSE_SUBTRACT);
 					break;
+				case BlendMode.Multiply:
+					Gl.glEnable(Gl.GL_BLEND);
+					ErrorHandler.CheckGlError();
+					Gl.glBlendFuncSeparate(Gl.GL_DST_COLOR, Gl.GL_ZERO, Gl.GL_ONE, Gl.GL_ONE_MINUS_SRC_ALPHA);
+					ErrorHandler.CheckGlError();
+					break;
 			}

 			ErrorHandler.CheckGlError();