Merge pull request #105 from Splendide-Imaginarius/mkxp-z-lanczos-enum

Fold `lanczos3Scaling` config into `smoothScaling`

binding/graphics-binding.cpp

@@ -368,7 +368,7 @@ DEF_GRA_PROP_B(ShowCursor)
 DEF_GRA_PROP_F(Scale)
 DEF_GRA_PROP_B(Frameskip)
 DEF_GRA_PROP_B(FixedAspectRatio)
-DEF_GRA_PROP_B(SmoothScaling)
+DEF_GRA_PROP_I(SmoothScaling)
 DEF_GRA_PROP_B(IntegerScaling)
 DEF_GRA_PROP_B(LastMileScaling)
 DEF_GRA_PROP_B(Threadsafe)

mkxp.json

@@ -77,18 +77,15 @@
     // "fixedAspectRatio": true,
 
 
-    // Apply linear interpolation when game screen
+    // Apply smooth interpolation when game screen
     // is upscaled
-    // (default: disabled)
+    // 0: Nearest-Neighbor
+    // 1: Bilinear
+    // 2: (Reserved)
+    // 3: Lanczos3
+    // (default: 0)
     //
-    // "smoothScaling": false,
-
-
-    // Apply Lanczos3 interpolation when game screen
-    // is upscaled (typically higher quality than linear)
-    // (default: disabled)
-    //
-    // "lanczos3Scaling": false,
+    // "smoothScaling": 0,
 
 
     // Replace the game's Bitmap files with external high-res files

src/config.cpp

@@ -134,8 +134,7 @@ void Config::read(int argc, char *argv[]) {
         {"winResizable", true},
         {"fullscreen", false},
         {"fixedAspectRatio", true},
-        {"smoothScaling", false},
-        {"lanczos3Scaling", false},
+        {"smoothScaling", 0},
         {"enableHires", false},
         {"textureScalingFactor", 1.},
         {"framebufferScalingFactor", 1.},
@@ -263,8 +262,7 @@ try { exp } catch (...) {}
     SET_OPT(printFPS, boolean);
     SET_OPT(fullscreen, boolean);
     SET_OPT(fixedAspectRatio, boolean);
-    SET_OPT(smoothScaling, boolean);
-    SET_OPT(lanczos3Scaling, boolean);
+    SET_OPT(smoothScaling, integer);
     SET_OPT(enableHires, boolean);
     SET_OPT(textureScalingFactor, number);
     SET_OPT(framebufferScalingFactor, number);

src/config.h

@@ -43,8 +43,7 @@ struct Config {
     bool winResizable;
     bool fullscreen;
     bool fixedAspectRatio;
-    bool smoothScaling;
-    bool lanczos3Scaling;
+    int smoothScaling;
     bool enableHires;
     double textureScalingFactor;
     double framebufferScalingFactor;

src/display/gl/gl-meta.cpp

@@ -25,6 +25,7 @@
 #include "glstate.h"
 #include "quad.h"
 #include "config.h"
+#include "etc.h"
 
 namespace FBO
 {
@@ -151,7 +152,9 @@ static void _blitBegin(FBO::ID fbo, const Vec2i &size)
 		FBO::bind(fbo);
 		glState.viewport.pushSet(IntRect(0, 0, size.x, size.y));
 
-		if (shState->config().lanczos3Scaling)
+		switch (shState->config().smoothScaling)
+		{
+		case Lanczos3:
 		{
 			Lanczos3Shader &shader = shState->shaders().lanczos3;
 			shader.bind();
@@ -159,7 +162,9 @@ static void _blitBegin(FBO::ID fbo, const Vec2i &size)
 			shader.setTranslation(Vec2i());
 			shader.setTexSize(Vec2i(size.x, size.y));
 		}
-		else
+
+			break;
+		default:
 		{
 			SimpleShader &shader = shState->shaders().simple;
 			shader.bind();
@@ -167,6 +172,7 @@ static void _blitBegin(FBO::ID fbo, const Vec2i &size)
 			shader.setTranslation(Vec2i());
 			shader.setTexSize(Vec2i(size.x, size.y));
 		}
+		}
 	}
 }
 
@@ -226,18 +232,23 @@ void blitSource(TEXFBO &source)
 	}
 	else
 	{
-		if (shState->config().lanczos3Scaling)
+		switch (shState->config().smoothScaling)
+		{
+		case Lanczos3:
 		{
 			Lanczos3Shader &shader = shState->shaders().lanczos3;
 			shader.bind();
 			shader.setTexSize(Vec2i(blitSrcWidthHires, blitSrcHeightHires));
 		}
-		else
+
+			break;
+		default:
 		{
 			SimpleShader &shader = shState->shaders().simple;
 			shader.bind();
 			shader.setTexSize(Vec2i(blitSrcWidthHires, blitSrcHeightHires));
 		}
+		}
 		if (source.selfHires != nullptr) {
 			TEX::bind(source.selfHires->tex);
 		}

src/display/graphics.cpp

@@ -28,6 +28,7 @@
 #include "config.h"
 #include "debugwriter.h"
 #include "disposable.h"
+#include "etc.h"
 #include "etc-internal.h"
 #include "eventthread.h"
 #include "filesystem.h"
@@ -1020,13 +1021,13 @@ struct GraphicsPrivate {
                                       (scSize.y + scOffset.y),
                                       scSize.x,
                                       -scSize.y),
-                              threadData->config.smoothScaling);
+                              threadData->config.smoothScaling == Bilinear);
     }
     
     void metaBlitBufferFlippedScaled(const Vec2i &sourceSize, bool forceNearestNeighbor=false) {
         GLMeta::blitRectangle(IntRect(0, 0, sourceSize.x, sourceSize.y),
                               IntRect(scOffset.x, scSize.y+scOffset.y, scSize.x, -scSize.y),
-                              !forceNearestNeighbor && threadData->config.smoothScaling);
+                              !forceNearestNeighbor && threadData->config.smoothScaling == Bilinear);
     }
     
     void redrawScreen() {
@@ -1613,13 +1614,13 @@ void Graphics::setFixedAspectRatio(bool value)
     p->updateScreenResoRatio(p->threadData);
 }
 
-bool Graphics::getSmoothScaling() const
+int Graphics::getSmoothScaling() const
 {
     // Same deal as with fixed aspect ratio
     return shState->config().smoothScaling;
 }
 
-void Graphics::setSmoothScaling(bool value)
+void Graphics::setSmoothScaling(int value)
 {
     shState->config().smoothScaling = value;
 }

src/display/graphics.h

@@ -81,7 +81,7 @@ public:
     DECL_ATTR( Scale,    double )
     DECL_ATTR( Frameskip, bool )
     DECL_ATTR( FixedAspectRatio, bool )
-    DECL_ATTR( SmoothScaling, bool )
+    DECL_ATTR( SmoothScaling, int )
     DECL_ATTR( IntegerScaling, bool )
     DECL_ATTR( LastMileScaling, bool )
     DECL_ATTR( Threadsafe, bool )

src/etc/etc.h

@@ -200,6 +200,14 @@ struct Rect : public Serializable
 	sigslot::signal<> valueChanged;
 };
 
+enum InterpolationMethod
+{
+	NearestNeighbor = 0,
+	Bilinear = 1,
+	// Reserving 2 for Bicubic
+	Lanczos3 = 3,
+};
+
 /* For internal use.
  * All drawable classes have properties of one or more of the above
  * types, which in an interpreted environment act as independent