JME nifty's render device now uses 2 separate shaders : one for images and texts and one for quads, this way there is no more branching in the frag shader greatly improving speed (specially on android)

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9229 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/niftygui/Common/MatDefs/Nifty/NiftyQuad.frag

@@ -0,0 +1,6 @@
+varying vec4 color;
+
+void main() { 
+    gl_FragColor = color;
+}
+

engine/src/niftygui/Common/MatDefs/Nifty/NiftyQuad.j3md

@@ -0,0 +1,19 @@
+MaterialDef Default GUI {
+
+    MaterialParameters {      
+        Vector4 Color (Color)
+    }
+
+    Technique {
+        VertexShader GLSL100:   Common/MatDefs/Nifty/NiftyQuad.vert
+        FragmentShader GLSL100: Common/MatDefs/Nifty/NiftyQuad.frag
+
+        WorldParameters {
+            WorldViewProjectionMatrix
+        }   
+    }
+
+    Technique FixedFunc {
+    }
+
+}

engine/src/niftygui/Common/MatDefs/Nifty/NiftyQuad.vert

@@ -0,0 +1,15 @@
+uniform mat4 g_WorldViewProjectionMatrix;
+uniform vec4 m_Color;
+
+attribute vec4 inPosition;
+attribute vec4 inColor;
+
+varying vec2 texCoord;
+varying vec4 color;
+
+void main() {
+    vec2 pos = (g_WorldViewProjectionMatrix * inPosition).xy;
+    gl_Position = vec4(pos, 0.0, 1.0);
+
+    color = inColor * m_Color;
+}

engine/src/niftygui/Common/MatDefs/Nifty/NiftyTex.frag

@@ -1,4 +1,3 @@
-uniform bool m_UseTex;
 uniform sampler2D m_Texture;
 uniform vec4 m_Color;
 
@@ -7,7 +6,7 @@ varying vec4 color;
 
 void main() {
     vec4 texVal = texture2D(m_Texture, texCoord);
-    texVal = m_UseTex ? texVal : vec4(1.0);
-    gl_FragColor = texVal * color * m_Color;
+ //   texVal = m_UseTex ? texVal : vec4(1.0);
+    gl_FragColor = texVal * color ;
 }
 

engine/src/niftygui/Common/MatDefs/Nifty/NiftyTex.j3md

@@ -2,13 +2,12 @@ MaterialDef Default GUI {
 
     MaterialParameters {
         Texture2D Texture
-        Boolean UseTex
         Vector4 Color (Color)
     }
 
     Technique {
-        VertexShader GLSL100:   Common/MatDefs/Nifty/Nifty.vert
-        FragmentShader GLSL100: Common/MatDefs/Nifty/Nifty.frag
+        VertexShader GLSL100:   Common/MatDefs/Nifty/NiftyTex.vert
+        FragmentShader GLSL100: Common/MatDefs/Nifty/NiftyTex.frag
 
         WorldParameters {
             WorldViewProjectionMatrix

engine/src/niftygui/Common/MatDefs/Nifty/NiftyTex.vert

@@ -1,4 +1,5 @@
 uniform mat4 g_WorldViewProjectionMatrix;
+uniform vec4 m_Color; 
 
 attribute vec4 inPosition;
 attribute vec4 inColor;
@@ -12,5 +13,5 @@ void main() {
     gl_Position = vec4(pos, 0.0, 1.0);
 
     texCoord = inTexCoord;
-    color = inColor;
+    color = inColor * m_Color;
 }

engine/src/niftygui/com/jme3/niftygui/RenderDeviceJme.java

@@ -71,6 +71,7 @@ public class RenderDeviceJme implements RenderDevice {
     private final Quad quad = new Quad(1, -1, true);
     private final Geometry quadGeom = new Geometry("nifty-quad", quad);
     private final Material niftyMat;
+    private final Material niftyQuadMat;
 
     private boolean clipWasSet = false;
     private BlendMode blendMode = null;
@@ -93,8 +94,10 @@ public class RenderDeviceJme implements RenderDevice {
 
         quadModTC.setUsage(Usage.Stream);
 
-        niftyMat = new Material(display.getAssetManager(), "Common/MatDefs/Nifty/Nifty.j3md");
+        niftyMat = new Material(display.getAssetManager(), "Common/MatDefs/Nifty/NiftyTex.j3md");
         niftyMat.getAdditionalRenderState().setDepthTest(false);
+        niftyQuadMat = new Material(display.getAssetManager(), "Common/MatDefs/Nifty/NiftyQuad.j3md");
+        niftyQuadMat.getAdditionalRenderState().setDepthTest(false);
     }
 
     public void setResourceLoader(NiftyResourceLoader niftyResourceLoader) {
@@ -211,7 +214,6 @@ public class RenderDeviceJme implements RenderDevice {
  
     @Override
     public void renderFont(RenderFont font, String str, int x, int y, Color color, float sizeX, float sizeY){                
-        //TODO find out what the f1 param is for
         if (str.length() == 0)
             return;
 
@@ -230,7 +232,6 @@ public class RenderDeviceJme implements RenderDevice {
         textCacheCurrentFrame.put(key, text);
 
         niftyMat.setColor("Color", convertColor(color, tempColor));        
-        niftyMat.setBoolean("UseTex", true);
         niftyMat.getAdditionalRenderState().setBlendMode(RenderState.BlendMode.Alpha);        
 //        niftyMat.getAdditionalRenderState().setBlendMode(convertBlend());
         text.setMaterial(niftyMat);
@@ -238,8 +239,10 @@ public class RenderDeviceJme implements RenderDevice {
         float width = text.getLineWidth();
         float height = text.getLineHeight();        
 
-        float x0 = x + 0.5f * width  * (1f - sizeX);
-        float y0 = y + 0.5f * height * (1f - sizeY);
+//        System.out.println("----------------------------------------------------");
+//        System.out.println("POS "+x+" "+width+" "+sizeX);
+        float x0 = x + 0.5f * width  * (1.0f - sizeX);
+        float y0 = y + 0.5f * height * (1.0f - sizeY);
 
         tempMat.loadIdentity();
         tempMat.setTranslation(x0, getHeight() - y0, 0);
@@ -261,7 +264,6 @@ public class RenderDeviceJme implements RenderDevice {
         niftyMat.getAdditionalRenderState().setBlendMode(convertBlend());
         niftyMat.setColor("Color", ColorRGBA.White);
         niftyMat.setTexture("Texture", texture);           
-        niftyMat.setBoolean("UseTex", true);
         setColor(color);
 
         float imageWidth  = jmeImage.getWidth();
@@ -308,7 +310,6 @@ public class RenderDeviceJme implements RenderDevice {
         niftyMat.getAdditionalRenderState().setBlendMode(convertBlend());
         niftyMat.setColor("Color", ColorRGBA.White);
         niftyMat.setTexture("Texture", jmeImage.getTexture());           
-        niftyMat.setBoolean("UseTex", true);
         setColor(color);
 
         quad.clearBuffer(Type.TexCoord);
@@ -328,10 +329,8 @@ public class RenderDeviceJme implements RenderDevice {
     }
 
     public void renderQuad(int x, int y, int width, int height, Color color){
-        niftyMat.getAdditionalRenderState().setBlendMode(convertBlend());
-        niftyMat.setColor("Color", ColorRGBA.White);
-        niftyMat.clearParam("Texture");
-        niftyMat.setBoolean("UseTex", false);
+        niftyQuadMat.getAdditionalRenderState().setBlendMode(convertBlend());
+        niftyQuadMat.setColor("Color", ColorRGBA.White);       
         setColor(color);
 
         tempMat.loadIdentity();
@@ -339,7 +338,7 @@ public class RenderDeviceJme implements RenderDevice {
         tempMat.setScale(width, height, 0);
 
         rm.setWorldMatrix(tempMat);
-        niftyMat.render(quadGeom, rm);
+        niftyQuadMat.render(quadGeom, rm);
         
 //        System.out.println("renderQuad (Solid)");
     }
@@ -359,17 +358,15 @@ public class RenderDeviceJme implements RenderDevice {
         buf.flip();
         quadColor.updateData(buf);
         
-        niftyMat.getAdditionalRenderState().setBlendMode(convertBlend());
-        niftyMat.setColor("Color", ColorRGBA.White);
-        niftyMat.clearParam("Texture");
-        niftyMat.setBoolean("UseTex", false);
+        niftyQuadMat.getAdditionalRenderState().setBlendMode(convertBlend());
+        niftyQuadMat.setColor("Color", ColorRGBA.White);        
 
         tempMat.loadIdentity();
         tempMat.setTranslation(x, getHeight() - y, 0);
         tempMat.setScale(width, height, 0);
 
         rm.setWorldMatrix(tempMat);
-        niftyMat.render(quadGeom, rm);
+        niftyQuadMat.render(quadGeom, rm);
 //        
 //        System.out.println("renderQuad (Grad)");
     }