Added missing GLSL version of the anti-aliased Euclidean distance tra…

…nsform

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/GLSL-JFA.dev

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+[Project]
+FileName=GLSL-JFA.dev
+Name=GLSL-JFA
+UnitCount=5
+Type=1
+Ver=1
+ObjFiles=
+Includes=
+Libs=
+PrivateResource=
+ResourceIncludes=
+MakeIncludes=
+Compiler=-Wall -O3 -ffast-math -I"C:\Dev-Cpp\include"_@@_
+CppCompiler=
+Linker=-lglfw -lopengl32 -lglu32 -mwindows -mconsole_@@_
+IsCpp=0
+Icon=
+ExeOutput=
+ObjectOutput=
+OverrideOutput=0
+OverrideOutputName=texremap.exe
+HostApplication=
+Folders=
+CommandLine=
+UseCustomMakefile=0
+CustomMakefile=
+IncludeVersionInfo=0
+SupportXPThemes=0
+CompilerSet=0
+CompilerSettings=0000000000000001000000
+
+[Unit1]
+FileName=GLSL-JFA.c
+CompileCpp=0
+Folder=
+Compile=1
+Link=1
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+
+[VersionInfo]
+Major=0
+Minor=1
+Release=1
+Build=1
+LanguageID=1033
+CharsetID=1252
+CompanyName=
+FileVersion=
+FileDescription=Developed using the Dev-C++ IDE
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=
+AutoIncBuildNr=0
+
+[Unit2]
+FileName=vertex.glsl
+Folder=
+Compile=0
+Link=0
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+
+[Unit4]
+FileName=fragment_flood.glsl
+CompileCpp=0
+Folder=
+Compile=0
+Link=0
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+
+[Unit5]
+FileName=fragment_display.glsl
+Folder=
+Compile=0
+Link=0
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=$(CC) -c fragment_display.glsl.c -o fragment_display.glsl.o $(CFLAGS)
+
+[Unit7]
+FileName=fragment4.glsl
+Folder=
+Compile=0
+Link=0
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+
+[Unit3]
+FileName=fragment_seed.glsl
+Folder=
+Compile=0
+Link=0
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/GLSL-JFA.layout

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+[Editor_4]
+CursorCol=1
+CursorRow=9
+TopLine=1
+LeftChar=1
+Open=1
+Top=0
+[Editors]
+Focused=0
+Order=2,3,4,0
+[Editor_0]
+Open=1
+Top=1
+CursorCol=1
+CursorRow=558
+TopLine=530
+LeftChar=1
+[Editor_1]
+Open=0
+Top=0
+[Editor_2]
+Open=1
+Top=0
+CursorCol=1
+CursorRow=38
+TopLine=16
+LeftChar=1
+[Editor_3]
+Open=1
+Top=0
+CursorCol=1
+CursorRow=47
+TopLine=33
+LeftChar=1

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/Makefile

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+#Makefile for Windows mingw32, Linux and MacOSX (gcc environments)
+
+Usage:
+	@echo "Usage: make Win32 | Linux | MacOSX | clean | distclean"
+
+Win32:
+	gcc.exe -c GLSL-JFA.c -o GLSL-JFA.o -I. -IC:/Dev-Cpp/include -Wall -O3 -ffast-math -g3
+	gcc.exe GLSL-JFA.o -o GLSL-JFA.exe -LC:/Dev-Cpp/lib -mwindows -lglfw -lopengl32 -lglu32 -mconsole -g3
+
+Linux:
+	gcc -I. -I/usr/X11/include GLSL-JFA.c -lglfw -o GLSL-JFA
+
+MacOSX:
+	./bundle.sh GLSL-JFA
+	gcc -I. -I/usr/X11/include GLSL-JFA.c -o GLSL-JFA.app/Contents/MacOS/GLSL-JFA -lglfw -framework Cocoa -framework OpenGL
+
+clean:
+	rm -f GLSL-JFA.o
+
+distclean:
+	rm -rf GLSL-JFA.o GLSL-JFA GLSL-JFA.exe GLSL-JFA.app

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/Makefile.win

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+# Project: GLSL-JFA
+# Makefile created by Dev-C++ 4.9.9.2
+
+CPP  = g++.exe -D__DEBUG__
+CC   = gcc.exe -D__DEBUG__
+WINDRES = windres.exe
+RES  = 
+OBJ  = GLSL-JFA.o $(RES)
+LINKOBJ  = GLSL-JFA.o $(RES)
+LIBS =  -L"C:/Dev-Cpp/lib" -lglfw -lopengl32 -lglu32 -mwindows -mconsole  -g3 
+INCS =  -I"C:/Dev-Cpp/include" 
+CXXINCS =  -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include" 
+BIN  = GLSL-JFA.exe
+CXXFLAGS = $(CXXINCS)   -g3
+CFLAGS = $(INCS) -Wall -O3 -ffast-math -I"C:\Dev-Cpp\include"   -g3
+RM = rm -f
+
+.PHONY: all all-before all-after clean clean-custom
+
+all: all-before GLSL-JFA.exe all-after
+
+
+clean: clean-custom
+	${RM} $(OBJ) $(BIN)
+
+$(BIN): $(OBJ)
+	$(CC) $(LINKOBJ) -o "GLSL-JFA.exe" $(LIBS)
+
+GLSL-JFA.o: GLSL-JFA.c
+	$(CC) -c GLSL-JFA.c -o GLSL-JFA.o $(CFLAGS)

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/bundle.sh

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+#!/bin/sh
+
+# Creates application bundles for use on Mac OS X.
+
+if [ -z "$1" ]; then
+  echo "usage: `basename $0` BUNDLE-NAME"
+  exit 1
+fi
+
+bundle_name="$1"
+
+if [ ! -d "${bundle_name}.app/Contents/MacOS" ]; then
+  mkdir -p "${bundle_name}.app/Contents/MacOS"
+fi
+
+if [ ! -d "${bundle_name}.app/Contents/Resources" ]; then
+  mkdir -p "${bundle_name}.app/Contents/Resources"
+fi
+
+if [ ! -f "${bundle_name}.app/Contents/PkgInfo" ]; then
+  echo -n "APPL????" > "${bundle_name}.app/Contents/PkgInfo"
+fi
+
+if [ ! -f "${bundle_name}.app/Contents/Info.plist" ]; then
+  cat > "${bundle_name}.app/Contents/Info.plist" <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+        <key>CFBundleDevelopmentRegion</key>
+        <string>English</string>
+        <key>CFBundleExecutable</key>
+        <string>${bundle_name}</string>
+        <key>CFBundleInfoDictionaryVersion</key>
+        <string>6.0</string>
+        <key>CFBundlePackageType</key>
+        <string>APPL</string>
+        <key>CFBundleSignature</key>
+        <string>????</string>
+        <key>CFBundleVersion</key>
+        <string>0.1</string>
+</dict>
+</plist>
+EOF
+fi
+

Chapter 12 2D Shape Rendering by Distance Fields/jfa-AA-demo/fragment_display.glsl

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+// Jump flooding algorithm for EDT according
+// to Danielsson (1980) and Guodong Rong (2007),
+// with added support for anti-aliased edges.
+// Implementation by Stefan Gustavson 2010.
+// This code is in the public domain.
+
+// This shader displays the final distance field
+// visualized as an RGB image.
+
+uniform sampler2D texture;
+uniform float texw, texh;
+uniform float texlevels;
+varying vec2 uv;
+
+vec2 remap(vec2 floatdata) {
+     return floatdata * (texlevels-1.0) / texlevels * 2.0 - 1.0;
+}
+
+void main( void )
+{
+  vec3 texel;
+  texel = texture2D(texture, uv).rgb;
+  vec2 distvec = remap(texel.rg);
+  // vec2 rainbow = 0.5+0.5*(normalize(distvec));
+  // gl_FragColor = vec4(rainbow, 1.0-(length(distvec)+texel.b-0.5)*4.0, 1.0);
+  float dist = length(distvec)+(texel.b-0.5)/texw;
+  gl_FragColor = vec4(vec2(mod(10.0*dist, 1.0)), texel.b, 1.0);
+}