262 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			262 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
This patch was downloaded from https://aur.archlinux.org/cgit/aur.git/tree/?h=java8-openjdk
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More info can be found at http://www.infinality.net/forum/viewtopic.php?f=2&t=275
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diff -ur a/jdk/src/share/native/sun/font/freetypeScaler.c b/jdk/src/share/native/sun/font/freetypeScaler.c
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--- a/jdk/src/share/native/sun/font/freetypeScaler.c	2014-09-14 16:28:06.108295959 +0200
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+++ b/jdk/src/share/native/sun/font/freetypeScaler.c	2014-09-14 16:28:45.569693174 +0200
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@@ -23,6 +23,9 @@
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  * questions.
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  */
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+/* Use Infinality patches as default */
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+#define INFINALITY
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+
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 #include "jni.h"
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 #include "jni_util.h"
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 #include "jlong.h"
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@@ -38,6 +41,10 @@
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 #include FT_SIZES_H
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 #include FT_OUTLINE_H
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 #include FT_SYNTHESIS_H
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+#ifdef INFINALITY
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+#include FT_LCD_FILTER_H
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+#include <fontconfig/fontconfig.h>
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+#endif
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 #include "fontscaler.h"
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@@ -676,6 +683,147 @@ static void CopyFTSubpixelVToSubpixel(co
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     }
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 }
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+#ifdef INFINALITY
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+typedef struct {
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+    FT_Render_Mode ftRenderMode;
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+    int ftLoadFlags;
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+    FT_LcdFilter ftLcdFilter;
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+} RenderingProperties;
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+
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+static FcPattern* matchedPattern(const FcChar8* family, double ptSize) {
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+    /*
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+      we will create pattern to find our family and size in
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+      fontconfig configuration, and then will return it's
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+      properties:
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+    */
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+    FcPattern* fcPattern = 0;
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+    fcPattern = FcPatternCreate();
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+    FcValue fcValue;
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+    fcValue.type = FcTypeString;
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+    fcValue.u.s = family;
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+    FcPatternAdd(fcPattern, FC_FAMILY, fcValue, FcTrue);
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+    FcPatternAddBool(fcPattern, FC_SCALABLE, FcTrue);
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+    FcPatternAddDouble(fcPattern, FC_SIZE, ptSize);
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+    // TODO FcPatternAddInteger(pattern, FC_WEIGHT, weight_value);
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+    // TODO FcPatternAddInteger(pattern, FC_SLANT, slant_value);
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+    // TODO FcPatternAddDouble(pattern, FC_PIXEL_SIZE, size_value);
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+    // TODO FcPatternAddInteger(pattern, FC_WIDTH, stretch); 100 in most cases
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+    FcConfigSubstitute(0, fcPattern, FcMatchPattern);
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+    FcConfigSubstitute(0, fcPattern, FcMatchFont);
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+    FcDefaultSubstitute(fcPattern);
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+    FcResult res;
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+
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+    FcPattern *pattern = 0;
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+    pattern = FcFontMatch(0, fcPattern, &res);
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+    FcPatternDestroy(fcPattern);
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+    return pattern;
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+}
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+
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+static void readFontconfig(const FcChar8* family, double ptSize, jint aaType, RenderingProperties* rp) {
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+
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+    FcPattern *pattern = matchedPattern(family, ptSize);
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+
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+    int ftLoadFalgs = FT_LOAD_DEFAULT;
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+    FT_Render_Mode ftRenderMode;
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+    FT_LcdFilter ftLcdFilter;
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+    char horizontal = 1;
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+    FcBool b;
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+
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+    // subpixel order:
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+    if (aaType == TEXT_AA_ON)
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+        ftRenderMode = FT_RENDER_MODE_NORMAL;
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+    else if (aaType == TEXT_AA_OFF)
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+        ftRenderMode = FT_RENDER_MODE_MONO;
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+    else if (FcPatternGetBool(pattern, FC_ANTIALIAS, 0, &b) == FcResultMatch)
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+        if (b) {
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+            int subpixel = FC_RGBA_UNKNOWN;
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+            FcPatternGetInteger(pattern, FC_RGBA, 0, &subpixel);
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+            if (subpixel == FC_RGBA_UNKNOWN)
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+                subpixel = FC_RGBA_NONE;
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+                switch (subpixel) {
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+                case FC_RGBA_NONE:
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+                    ftRenderMode = FT_RENDER_MODE_NORMAL;
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+                    break;
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+                case FC_RGBA_RGB:
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+                case FC_RGBA_BGR:
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+                    ftRenderMode = FT_RENDER_MODE_LCD;
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+                    horizontal = 1;
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+                    break;
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+                case FC_RGBA_VRGB:
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+                case FC_RGBA_VBGR:
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+                    ftRenderMode = FT_RENDER_MODE_LCD_V;
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+                    horizontal = 0;
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+                    break;
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+                default:
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+                    break;
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+                }
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+            } else {
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+                ftRenderMode = FT_RENDER_MODE_NORMAL;
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+            }
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+
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+    // loading mode:
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+    if (aaType == TEXT_AA_OFF)
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+        ftLoadFalgs |= FT_LOAD_TARGET_MONO;
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+    else {
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+        int hint_style = FC_HINT_NONE;
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+        FcPatternGetInteger(pattern, FC_HINT_STYLE, 0, &hint_style);
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+        switch (hint_style) {
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+        case FC_HINT_NONE:
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+            ftLoadFalgs |= FT_LOAD_NO_HINTING;
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+            break;
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+        case FC_HINT_SLIGHT:
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+            ftLoadFalgs |= FT_LOAD_TARGET_LIGHT;
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+            break;
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+        case FC_HINT_MEDIUM:
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+            ftLoadFalgs |= FT_LOAD_TARGET_NORMAL;
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+            break;
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+        case FC_HINT_FULL:
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+            if (aaType == TEXT_AA_ON)
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+                ftLoadFalgs |= FT_LOAD_TARGET_NORMAL;
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+            else
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+                ftLoadFalgs |= horizontal ? FT_LOAD_TARGET_LCD : FT_LOAD_TARGET_LCD_V;
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+            break;
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+        default:
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+            // what else to use as default?
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+            ftLoadFalgs |= FT_LOAD_TARGET_NORMAL;
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+            break;
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+        }
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+    }
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+
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+    // autohinting:
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+    if (FcPatternGetBool(pattern, FC_AUTOHINT, 0, &b) == FcResultMatch)
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+        if (b)
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+            ftLoadFalgs |= FT_LOAD_FORCE_AUTOHINT;
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+
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+    // LCD filter:
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+    int filter = FC_LCD_DEFAULT;
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+    FcPatternGetInteger(pattern, FC_LCD_FILTER, 0, &filter);
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+    switch (filter) {
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+    case FC_LCD_NONE:
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+        ftLcdFilter = FT_LCD_FILTER_NONE;
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+        break;
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+    case FC_LCD_DEFAULT:
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+        ftLcdFilter = FT_LCD_FILTER_DEFAULT;
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+        break;
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+    case FC_LCD_LIGHT:
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+        ftLcdFilter = FT_LCD_FILTER_LIGHT;
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+        break;
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+    case FC_LCD_LEGACY:
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+        ftLcdFilter = FT_LCD_FILTER_LEGACY;
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+        break;
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+    default:
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+        // new unknown lcd filter type?! will use default one:
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+        ftLcdFilter = FT_LCD_FILTER_DEFAULT;
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+        break;
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+    }
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+
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+    FcPatternDestroy(pattern);
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+
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+    rp->ftRenderMode = ftRenderMode;
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+    rp->ftLoadFlags = ftLoadFalgs;
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+    rp->ftLcdFilter = ftLcdFilter;
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+}
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+#endif
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 /*
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  * Class:     sun_font_FreetypeFontScaler
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@@ -691,7 +839,9 @@ Java_sun_font_FreetypeFontScaler_getGlyp
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     UInt16 width, height;
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     GlyphInfo *glyphInfo;
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     int glyph_index;
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+#ifndef INFINALITY
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     int renderFlags = FT_LOAD_RENDER, target;
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+#endif
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     FT_GlyphSlot ftglyph;
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     FTScalerContext* context =
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@@ -709,6 +859,11 @@ Java_sun_font_FreetypeFontScaler_getGlyp
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         return ptr_to_jlong(getNullGlyphImage());
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     }
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+#ifdef INFINALITY
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+    RenderingProperties renderingProperties;
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+    readFontconfig((const FcChar8 *) scalerInfo->face->family_name,
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+                   context->ptsz, context->aaType, &renderingProperties);
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+#else
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     /* if algorithmic styling is required then we do not request bitmap */
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     if (context->doBold || context->doItalize) {
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         renderFlags =  FT_LOAD_DEFAULT;
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@@ -731,10 +886,17 @@ Java_sun_font_FreetypeFontScaler_getGlyp
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         target = FT_LOAD_TARGET_LCD_V;
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     }
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     renderFlags |= target;
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+#endif
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     glyph_index = FT_Get_Char_Index(scalerInfo->face, glyphCode);
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+#ifdef INFINALITY
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+    FT_Library_SetLcdFilter(scalerInfo->library, renderingProperties.ftLcdFilter);
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+    error = FT_Load_Glyph(scalerInfo->face, glyphCode, renderingProperties.ftLoadFlags);
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+#else
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     error = FT_Load_Glyph(scalerInfo->face, glyphCode, renderFlags);
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+#endif
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+
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     if (error) {
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         //do not destroy scaler yet.
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         //this can be problem of particular context (e.g. with bad transform)
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@@ -753,9 +915,13 @@ Java_sun_font_FreetypeFontScaler_getGlyp
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     /* generate bitmap if it is not done yet
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      e.g. if algorithmic styling is performed and style was added to outline */
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+#ifdef INFINALITY
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+    FT_Render_Glyph(ftglyph, renderingProperties.ftRenderMode);
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+#else
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     if (ftglyph->format == FT_GLYPH_FORMAT_OUTLINE) {
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         FT_Render_Glyph(ftglyph, FT_LOAD_TARGET_MODE(target));
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     }
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+#endif
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     width  = (UInt16) ftglyph->bitmap.width;
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     height = (UInt16) ftglyph->bitmap.rows;
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@@ -969,7 +1135,9 @@ Java_sun_font_FreetypeFontScaler_getGlyp
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 static FT_Outline* getFTOutline(JNIEnv* env, jobject font2D,
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         FTScalerContext *context, FTScalerInfo* scalerInfo,
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         jint glyphCode, jfloat xpos, jfloat ypos) {
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+#ifndef INFINALITY
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     int renderFlags;
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+#endif
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     int glyph_index;
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     FT_Error error;
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     FT_GlyphSlot ftglyph;
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@@ -984,11 +1152,22 @@ static FT_Outline* getFTOutline(JNIEnv*
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         return NULL;
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     }
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+#ifdef INFINALITY
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+    RenderingProperties renderingProperties;
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+    readFontconfig((const FcChar8 *) scalerInfo->face->family_name,
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+                   context->ptsz, context->aaType, &renderingProperties);
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+#else
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     renderFlags = FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP;
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+#endif
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     glyph_index = FT_Get_Char_Index(scalerInfo->face, glyphCode);
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+#ifdef INFINALITY
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+    error = FT_Load_Glyph(scalerInfo->face, glyphCode, renderingProperties.ftLoadFlags);
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+#else
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     error = FT_Load_Glyph(scalerInfo->face, glyphCode, renderFlags);
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+#endif
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+
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     if (error) {
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         return NULL;
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     }
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