Avoid some flushing with shaders.

Author: tommyettinger

knownFonts/fontwriter/Gentium-License.txt

@@ -0,0 +1,94 @@
+Copyright (c) 2003-2014 SIL International (http://www.sil.org/),
+with Reserved Font Names "Gentium" and "SIL".
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

knownFonts/fontwriter/Gentium-msdf.json

@@ -2153,11 +2153,11 @@ public Font(String jsonName, TextureRegion textureRegion,
         String dfType = atlas.getString("type", "");
         if("msdf".equals(dfType) || "mtsdf".equals(dfType)) {
             this.setDistanceField(DistanceFieldType.MSDF);
-            distanceFieldCrispness = 16f / atlas.getFloat("distanceRange", 2f);
+            setCrispness(16f / atlas.getFloat("distanceRange", 2f));
         }
         else if("sdf".equals(dfType) || "psdf".equals(dfType)) {
             this.setDistanceField(DistanceFieldType.SDF);
-            distanceFieldCrispness = 16f / atlas.getFloat("distanceRange", 4f);
+            setCrispness(16f / atlas.getFloat("distanceRange", 4f));
         }
         else // softmask, hardmask
             this.setDistanceField(DistanceFieldType.STANDARD);
@@ -2280,7 +2280,7 @@ else if("sdf".equals(dfType) || "psdf".equals(dfType)) {
             textureRegion.getTexture().setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear);
             if(distanceField == DistanceFieldType.MSDF)
                 distanceFieldCrispness = -8f / (float)Math.log(1f/originalCellHeight);
-            else if(distanceField == DistanceFieldType.SDF)
+            else if(distanceField == DistanceFieldType.SDF || distanceField == DistanceFieldType.SDF_OUTLINE)
                 distanceFieldCrispness = -1.2f / (float)Math.log(1f/originalCellHeight);
         }
 
@@ -2908,12 +2908,20 @@ public void enableShader(Batch batch) {
             if (distanceField == DistanceFieldType.MSDF) {
                 batch.setShader(shader);
                 float smoothing = 7f * actualCrispness * Math.max(cellHeight / originalCellHeight, cellWidth / originalCellWidth);
+                Float old = smoothingValues.get(batch);
+                if(old != null && MathUtils.isEqual(old, smoothing))
+                    return;
+                batch.flush();
                 shader.setUniformf("u_smoothing", smoothing);
                 smoothingValues.put(batch, smoothing);
             } else if (distanceField == DistanceFieldType.SDF || getDistanceField() == DistanceFieldType.SDF_OUTLINE) {
                 batch.setShader(shader);
                 float smoothing = (actualCrispness / (Math.max(cellHeight / originalCellHeight,
                         cellWidth / originalCellWidth) * 0.5f + 0.125f));
+                Float old = smoothingValues.get(batch);
+                if(old != null && MathUtils.isEqual(old, smoothing))
+                    return;
+                batch.flush();
                 shader.setUniformf("u_smoothing", smoothing);
                 smoothingValues.put(batch, smoothing);
             } else {
@@ -2938,14 +2946,20 @@ public void enableShader(Batch batch) {
     public void enableDistanceFieldShader(Batch batch) {
         if (batch.getShader() == shader) {
             if (distanceField == DistanceFieldType.MSDF) {
-                batch.flush();
                 float smoothing = 7f * actualCrispness * Math.max(cellHeight / originalCellHeight, cellWidth / originalCellWidth);
+                Float old = smoothingValues.get(batch);
+                if(old != null && MathUtils.isEqual(old, smoothing))
+                    return;
+                batch.flush();
                 shader.setUniformf("u_smoothing", smoothing);
                 smoothingValues.put(batch, smoothing);
             } else if (distanceField == DistanceFieldType.SDF || getDistanceField() == DistanceFieldType.SDF_OUTLINE) {
-                batch.flush();
                 float smoothing = (actualCrispness / (Math.max(cellHeight / originalCellHeight,
                         cellWidth / originalCellWidth) * 0.5f + 0.125f));
+                Float old = smoothingValues.get(batch);
+                if(old != null && MathUtils.isEqual(old, smoothing))
+                    return;
+                batch.flush();
                 shader.setUniformf("u_smoothing", smoothing);
                 smoothingValues.put(batch, smoothing);
             }

knownFonts/fontwriter/Gentium-msdf.png

@@ -42,9 +42,9 @@ public void create() {
         adjustTypingConfigs();
 
         batch = new SpriteBatch();
-        skin = new Skin(Gdx.files.internal("uiskin.json"));
+        skin = new FreeTypistSkin(Gdx.files.internal("uiskin.json"));
 //        skin.getAtlas().getTextures().iterator().next().setFilter(TextureFilter.Nearest, TextureFilter.Nearest);
-        skin.getFont("default-font");//.getData().setScale(0.5f);
+//        skin.getFont("default-font").getData().setScale(0.5f);
         stage = new Stage(new StretchViewport(720, 405), batch);
         stage.setDebugAll(true);
         Gdx.input.setInputProcessor(stage);
@@ -102,7 +102,9 @@ public TypingLabel createTypingLabel() {
 //        Font font = new Font("dawnlike/PlainAndSimplePlus-standard.fnt", atlas.findRegion("PlainAndSimplePlus-standard"), 0, 0, 2, 2);
 //        font.addImage("😀", atlas.findRegion("love box")).addImage("💀", atlas.findRegion("hate box"));
 //        font.scale(2, 2);
-        Font font = KnownFonts.addEmoji(KnownFonts.getNowAlt());
+//        Font font = KnownFonts.addEmoji(new Font("experimental/GentiumUnItalic-sdf.json", true)).scale(0.5f, 0.5f);
+        Font font = KnownFonts.addEmoji(new Font("fontwriter/Gentium-sdf.json", true)).scale(0.6f, 0.6f);
+//        Font font = KnownFonts.addEmoji(KnownFonts.getGentiumSDF());
 
 //        Font font = new Font(KnownFonts.getOpenSans().scale(0.5f, 0.5f).setTextureFilter());
         // Create label