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@@ -1,4 +1,4 @@
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-// stb_truetype.h - v1.17 - public domain
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+// stb_truetype.h - v1.19 - public domain
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// authored from 2009-2016 by Sean Barrett / RAD Game Tools
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// authored from 2009-2016 by Sean Barrett / RAD Game Tools
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//
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//
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// This library processes TrueType files:
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// This library processes TrueType files:
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@@ -22,41 +22,35 @@
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// Mikko Mononen: compound shape support, more cmap formats
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// Mikko Mononen: compound shape support, more cmap formats
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// Tor Andersson: kerning, subpixel rendering
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// Tor Andersson: kerning, subpixel rendering
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// Dougall Johnson: OpenType / Type 2 font handling
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// Dougall Johnson: OpenType / Type 2 font handling
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+// Daniel Ribeiro Maciel: basic GPOS-based kerning
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//
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//
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// Misc other:
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// Misc other:
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// Ryan Gordon
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// Ryan Gordon
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// Simon Glass
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// Simon Glass
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// github:IntellectualKitty
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// github:IntellectualKitty
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// Imanol Celaya
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// Imanol Celaya
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+// Daniel Ribeiro Maciel
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//
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//
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// Bug/warning reports/fixes:
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// Bug/warning reports/fixes:
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-// "Zer" on mollyrocket
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-// Cass Everitt
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-// stoiko (Haemimont Games)
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-// Brian Hook
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-// Walter van Niftrik
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-// David Gow
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-// David Given
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-// Ivan-Assen Ivanov
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-// Anthony Pesch
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-// Johan Duparc
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-// Hou Qiming
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-// Fabian "ryg" Giesen
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-// Martins Mozeiko
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-// Cap Petschulat
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-// Omar Cornut
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-// github:aloucks
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-// Peter LaValle
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-// Sergey Popov
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-// Giumo X. Clanjor
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-// Higor Euripedes
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-// Thomas Fields
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-// Derek Vinyard
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-// Cort Stratton
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-// github:oyvindjam
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+// "Zer" on mollyrocket Fabian "ryg" Giesen
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+// Cass Everitt Martins Mozeiko
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+// stoiko (Haemimont Games) Cap Petschulat
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+// Brian Hook Omar Cornut
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+// Walter van Niftrik github:aloucks
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+// David Gow Peter LaValle
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+// David Given Sergey Popov
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+// Ivan-Assen Ivanov Giumo X. Clanjor
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+// Anthony Pesch Higor Euripedes
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+// Johan Duparc Thomas Fields
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+// Hou Qiming Derek Vinyard
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+// Rob Loach Cort Stratton
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+// Kenney Phillis Jr. github:oyvindjam
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+// Brian Costabile github:vassvik
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//
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//
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// VERSION HISTORY
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// VERSION HISTORY
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//
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//
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+// 1.19 (2018-02-11) GPOS kerning, STBTT_fmod
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+// 1.18 (2018-01-29) add missing function
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// 1.17 (2017-07-23) make more arguments const; doc fix
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// 1.17 (2017-07-23) make more arguments const; doc fix
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// 1.16 (2017-07-12) SDF support
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// 1.16 (2017-07-12) SDF support
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// 1.15 (2017-03-03) make more arguments const
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// 1.15 (2017-03-03) make more arguments const
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@@ -171,7 +165,7 @@
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// measurement for describing font size, defined as 72 points per inch.
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// measurement for describing font size, defined as 72 points per inch.
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// stb_truetype provides a point API for compatibility. However, true
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// stb_truetype provides a point API for compatibility. However, true
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// "per inch" conventions don't make much sense on computer displays
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// "per inch" conventions don't make much sense on computer displays
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-// since they different monitors have different number of pixels per
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+// since different monitors have different number of pixels per
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// inch. For example, Windows traditionally uses a convention that
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// inch. For example, Windows traditionally uses a convention that
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// there are 96 pixels per inch, thus making 'inch' measurements have
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// there are 96 pixels per inch, thus making 'inch' measurements have
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// nothing to do with inches, and thus effectively defining a point to
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// nothing to do with inches, and thus effectively defining a point to
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@@ -181,6 +175,39 @@
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// for non-commercial fonts, thus making fonts scaled in points
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// for non-commercial fonts, thus making fonts scaled in points
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// according to the TrueType spec incoherently sized in practice.
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// according to the TrueType spec incoherently sized in practice.
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//
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//
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+// DETAILED USAGE:
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+//
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+// Scale:
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+// Select how high you want the font to be, in points or pixels.
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+// Call ScaleForPixelHeight or ScaleForMappingEmToPixels to compute
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+// a scale factor SF that will be used by all other functions.
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+//
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+// Baseline:
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+// You need to select a y-coordinate that is the baseline of where
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+// your text will appear. Call GetFontBoundingBox to get the baseline-relative
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+// bounding box for all characters. SF*-y0 will be the distance in pixels
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+// that the worst-case character could extend above the baseline, so if
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+// you want the top edge of characters to appear at the top of the
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+// screen where y=0, then you would set the baseline to SF*-y0.
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+//
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+// Current point:
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+// Set the current point where the first character will appear. The
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+// first character could extend left of the current point; this is font
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+// dependent. You can either choose a current point that is the leftmost
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+// point and hope, or add some padding, or check the bounding box or
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+// left-side-bearing of the first character to be displayed and set
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+// the current point based on that.
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+//
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+// Displaying a character:
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+// Compute the bounding box of the character. It will contain signed values
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+// relative to <current_point, baseline>. I.e. if it returns x0,y0,x1,y1,
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+// then the character should be displayed in the rectangle from
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+// <current_point+SF*x0, baseline+SF*y0> to <current_point+SF*x1,baseline+SF*y1).
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+//
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+// Advancing for the next character:
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+// Call GlyphHMetrics, and compute 'current_point += SF * advance'.
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+//
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+//
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// ADVANCED USAGE
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// ADVANCED USAGE
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//
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//
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// Quality:
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// Quality:
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@@ -224,7 +251,7 @@
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// Curve tesselation 120 LOC \__ 550 LOC Bitmap creation
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// Curve tesselation 120 LOC \__ 550 LOC Bitmap creation
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// Bitmap management 100 LOC /
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// Bitmap management 100 LOC /
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// Baked bitmap interface 70 LOC /
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// Baked bitmap interface 70 LOC /
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-// Font name matching & access 150 LOC ---- 150
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+// Font name matching & access 150 LOC ---- 150
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// C runtime library abstraction 60 LOC ---- 60
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// C runtime library abstraction 60 LOC ---- 60
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//
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//
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//
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//
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@@ -317,7 +344,7 @@ int main(int argc, char **argv)
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}
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}
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return 0;
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return 0;
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}
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}
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-#endif
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+#endif
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//
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//
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// Output:
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// Output:
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//
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//
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@@ -331,9 +358,9 @@ int main(int argc, char **argv)
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// :@@. M@M
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// :@@. M@M
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// @@@o@@@@
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// @@@o@@@@
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// :M@@V:@@.
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// :M@@V:@@.
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-//
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+//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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-//
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+//
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// Complete program: print "Hello World!" banner, with bugs
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// Complete program: print "Hello World!" banner, with bugs
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//
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//
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#if 0
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#if 0
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@@ -387,7 +414,8 @@ int main(int arg, char **argv)
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//// INTEGRATION WITH YOUR CODEBASE
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//// INTEGRATION WITH YOUR CODEBASE
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////
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////
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//// The following sections allow you to supply alternate definitions
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//// The following sections allow you to supply alternate definitions
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-//// of C library functions used by stb_truetype.
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+//// of C library functions used by stb_truetype, e.g. if you don't
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+//// link with the C runtime library.
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#ifdef STB_TRUETYPE_IMPLEMENTATION
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#ifdef STB_TRUETYPE_IMPLEMENTATION
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// #define your own (u)stbtt_int8/16/32 before including to override this
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// #define your own (u)stbtt_int8/16/32 before including to override this
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@@ -403,7 +431,7 @@ int main(int arg, char **argv)
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typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
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typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
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typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
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typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
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- // #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
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+ // e.g. #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
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#ifndef STBTT_ifloor
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#ifndef STBTT_ifloor
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#include <math.h>
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#include <math.h>
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#define STBTT_ifloor(x) ((int) floor(x))
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#define STBTT_ifloor(x) ((int) floor(x))
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@@ -416,15 +444,15 @@ int main(int arg, char **argv)
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#define STBTT_pow(x,y) pow(x,y)
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#define STBTT_pow(x,y) pow(x,y)
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#endif
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#endif
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- #ifndef STBTT_cos
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+ #ifndef STBTT_fmod
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#include <math.h>
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#include <math.h>
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- #define STBTT_cos(x) cos(x)
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- #define STBTT_acos(x) acos(x)
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+ #define STBTT_fmod(x,y) fmod(x,y)
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#endif
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#endif
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- #ifndef STBTT_fabs
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+ #ifndef STBTT_cos
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#include <math.h>
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#include <math.h>
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- #define STBTT_fabs(x) fabs(x)
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+ #define STBTT_cos(x) cos(x)
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+ #define STBTT_acos(x) acos(x)
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#endif
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#endif
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#ifndef STBTT_fabs
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#ifndef STBTT_fabs
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@@ -625,7 +653,7 @@ STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, cons
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// Calling these functions in sequence is roughly equivalent to calling
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// Calling these functions in sequence is roughly equivalent to calling
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// stbtt_PackFontRanges(). If you more control over the packing of multiple
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// stbtt_PackFontRanges(). If you more control over the packing of multiple
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// fonts, or if you want to pack custom data into a font texture, take a look
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// fonts, or if you want to pack custom data into a font texture, take a look
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-// at the source to of stbtt_PackFontRanges() and create a custom version
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+// at the source to of stbtt_PackFontRanges() and create a custom version
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// using these functions, e.g. call GatherRects multiple times,
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// using these functions, e.g. call GatherRects multiple times,
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// building up a single array of rects, then call PackRects once,
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// building up a single array of rects, then call PackRects once,
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// then call RenderIntoRects repeatedly. This may result in a
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// then call RenderIntoRects repeatedly. This may result in a
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@@ -676,7 +704,7 @@ struct stbtt_fontinfo
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int numGlyphs; // number of glyphs, needed for range checking
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int numGlyphs; // number of glyphs, needed for range checking
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- int loca,head,glyf,hhea,hmtx,kern; // table locations as offset from start of .ttf
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+ int loca,head,glyf,hhea,hmtx,kern,gpos; // table locations as offset from start of .ttf
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int index_map; // a cmap mapping for our chosen character encoding
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int index_map; // a cmap mapping for our chosen character encoding
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int indexToLocFormat; // format needed to map from glyph index to glyph
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int indexToLocFormat; // format needed to map from glyph index to glyph
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@@ -931,7 +959,7 @@ STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, floa
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// and computing from that can allow drop-out prevention).
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// and computing from that can allow drop-out prevention).
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//
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//
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// The algorithm has not been optimized at all, so expect it to be slow
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// The algorithm has not been optimized at all, so expect it to be slow
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-// if computing lots of characters or very large sizes.
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+// if computing lots of characters or very large sizes.
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@@ -1319,6 +1347,7 @@ static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, in
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info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
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info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
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info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
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info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
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info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
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info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
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+ info->gpos = stbtt__find_table(data, fontstart, "GPOS"); // not required
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if (!cmap || !info->head || !info->hhea || !info->hmtx)
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if (!cmap || !info->head || !info->hhea || !info->hmtx)
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return 0;
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return 0;
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@@ -1687,7 +1716,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
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if (i != 0)
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if (i != 0)
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num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
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num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
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- // now start the new one
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+ // now start the new one
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start_off = !(flags & 1);
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start_off = !(flags & 1);
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if (start_off) {
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if (start_off) {
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// if we start off with an off-curve point, then when we need to find a point on the curve
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// if we start off with an off-curve point, then when we need to find a point on the curve
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@@ -1740,7 +1769,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
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int comp_num_verts = 0, i;
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int comp_num_verts = 0, i;
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stbtt_vertex *comp_verts = 0, *tmp = 0;
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stbtt_vertex *comp_verts = 0, *tmp = 0;
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float mtx[6] = {1,0,0,1,0,0}, m, n;
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float mtx[6] = {1,0,0,1,0,0}, m, n;
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-
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+
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flags = ttSHORT(comp); comp+=2;
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flags = ttSHORT(comp); comp+=2;
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gidx = ttSHORT(comp); comp+=2;
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gidx = ttSHORT(comp); comp+=2;
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@@ -1770,7 +1799,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
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mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
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mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
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mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
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mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
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}
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}
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-
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+
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// Find transformation scales.
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// Find transformation scales.
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m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
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m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
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n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
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n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
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@@ -2172,7 +2201,7 @@ static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, st
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// push immediate
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// push immediate
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if (b0 == 255) {
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if (b0 == 255) {
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- f = (float)stbtt__buf_get32(&b) / 0x10000;
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+ f = (float)(stbtt_int32)stbtt__buf_get32(&b) / 0x10000;
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} else {
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} else {
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stbtt__buf_skip(&b, -1);
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stbtt__buf_skip(&b, -1);
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f = (float)(stbtt_int16)stbtt__cff_int(&b);
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f = (float)(stbtt_int16)stbtt__cff_int(&b);
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@@ -2210,12 +2239,10 @@ static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, in
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{
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{
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stbtt__csctx c = STBTT__CSCTX_INIT(1);
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stbtt__csctx c = STBTT__CSCTX_INIT(1);
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int r = stbtt__run_charstring(info, glyph_index, &c);
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int r = stbtt__run_charstring(info, glyph_index, &c);
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- if (x0) {
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- *x0 = r ? c.min_x : 0;
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- *y0 = r ? c.min_y : 0;
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- *x1 = r ? c.max_x : 0;
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- *y1 = r ? c.max_y : 0;
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- }
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+ if (x0) *x0 = r ? c.min_x : 0;
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+ if (y0) *y0 = r ? c.min_y : 0;
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+ if (x1) *x1 = r ? c.max_x : 0;
|
|
|
|
+ if (y1) *y1 = r ? c.max_y : 0;
|
|
return r ? c.num_vertices : 0;
|
|
return r ? c.num_vertices : 0;
|
|
}
|
|
}
|
|
|
|
|
|
@@ -2239,7 +2266,7 @@ STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_inde
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
-STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
|
|
|
|
|
|
+static int stbtt__GetGlyphKernInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
|
|
{
|
|
{
|
|
stbtt_uint8 *data = info->data + info->kern;
|
|
stbtt_uint8 *data = info->data + info->kern;
|
|
stbtt_uint32 needle, straw;
|
|
stbtt_uint32 needle, straw;
|
|
@@ -2269,9 +2296,260 @@ STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1,
|
|
return 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
+static stbtt_int32 stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyph)
|
|
|
|
+{
|
|
|
|
+ stbtt_uint16 coverageFormat = ttUSHORT(coverageTable);
|
|
|
|
+ switch(coverageFormat) {
|
|
|
|
+ case 1: {
|
|
|
|
+ stbtt_uint16 glyphCount = ttUSHORT(coverageTable + 2);
|
|
|
|
+
|
|
|
|
+ // Binary search.
|
|
|
|
+ stbtt_int32 l=0, r=glyphCount-1, m;
|
|
|
|
+ int straw, needle=glyph;
|
|
|
|
+ while (l <= r) {
|
|
|
|
+ stbtt_uint8 *glyphArray = coverageTable + 4;
|
|
|
|
+ stbtt_uint16 glyphID;
|
|
|
|
+ m = (l + r) >> 1;
|
|
|
|
+ glyphID = ttUSHORT(glyphArray + 2 * m);
|
|
|
|
+ straw = glyphID;
|
|
|
|
+ if (needle < straw)
|
|
|
|
+ r = m - 1;
|
|
|
|
+ else if (needle > straw)
|
|
|
|
+ l = m + 1;
|
|
|
|
+ else {
|
|
|
|
+ return m;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ case 2: {
|
|
|
|
+ stbtt_uint16 rangeCount = ttUSHORT(coverageTable + 2);
|
|
|
|
+ stbtt_uint8 *rangeArray = coverageTable + 4;
|
|
|
|
+
|
|
|
|
+ // Binary search.
|
|
|
|
+ stbtt_int32 l=0, r=rangeCount-1, m;
|
|
|
|
+ int strawStart, strawEnd, needle=glyph;
|
|
|
|
+ while (l <= r) {
|
|
|
|
+ stbtt_uint8 *rangeRecord;
|
|
|
|
+ m = (l + r) >> 1;
|
|
|
|
+ rangeRecord = rangeArray + 6 * m;
|
|
|
|
+ strawStart = ttUSHORT(rangeRecord);
|
|
|
|
+ strawEnd = ttUSHORT(rangeRecord + 2);
|
|
|
|
+ if (needle < strawStart)
|
|
|
|
+ r = m - 1;
|
|
|
|
+ else if (needle > strawEnd)
|
|
|
|
+ l = m + 1;
|
|
|
|
+ else {
|
|
|
|
+ stbtt_uint16 startCoverageIndex = ttUSHORT(rangeRecord + 4);
|
|
|
|
+ return startCoverageIndex + glyph - strawStart;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ default: {
|
|
|
|
+ // There are no other cases.
|
|
|
|
+ STBTT_assert(0);
|
|
|
|
+ } break;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return -1;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static stbtt_int32 stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
|
|
|
|
+{
|
|
|
|
+ stbtt_uint16 classDefFormat = ttUSHORT(classDefTable);
|
|
|
|
+ switch(classDefFormat)
|
|
|
|
+ {
|
|
|
|
+ case 1: {
|
|
|
|
+ stbtt_uint16 startGlyphID = ttUSHORT(classDefTable + 2);
|
|
|
|
+ stbtt_uint16 glyphCount = ttUSHORT(classDefTable + 4);
|
|
|
|
+ stbtt_uint8 *classDef1ValueArray = classDefTable + 6;
|
|
|
|
+
|
|
|
|
+ if (glyph >= startGlyphID && glyph < startGlyphID + glyphCount)
|
|
|
|
+ return (stbtt_int32)ttUSHORT(classDef1ValueArray + 2 * (glyph - startGlyphID));
|
|
|
|
+
|
|
|
|
+ classDefTable = classDef1ValueArray + 2 * glyphCount;
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ case 2: {
|
|
|
|
+ stbtt_uint16 classRangeCount = ttUSHORT(classDefTable + 2);
|
|
|
|
+ stbtt_uint8 *classRangeRecords = classDefTable + 4;
|
|
|
|
+
|
|
|
|
+ // Binary search.
|
|
|
|
+ stbtt_int32 l=0, r=classRangeCount-1, m;
|
|
|
|
+ int strawStart, strawEnd, needle=glyph;
|
|
|
|
+ while (l <= r) {
|
|
|
|
+ stbtt_uint8 *classRangeRecord;
|
|
|
|
+ m = (l + r) >> 1;
|
|
|
|
+ classRangeRecord = classRangeRecords + 6 * m;
|
|
|
|
+ strawStart = ttUSHORT(classRangeRecord);
|
|
|
|
+ strawEnd = ttUSHORT(classRangeRecord + 2);
|
|
|
|
+ if (needle < strawStart)
|
|
|
|
+ r = m - 1;
|
|
|
|
+ else if (needle > strawEnd)
|
|
|
|
+ l = m + 1;
|
|
|
|
+ else
|
|
|
|
+ return (stbtt_int32)ttUSHORT(classRangeRecord + 4);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ classDefTable = classRangeRecords + 6 * classRangeCount;
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ default: {
|
|
|
|
+ // There are no other cases.
|
|
|
|
+ STBTT_assert(0);
|
|
|
|
+ } break;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return -1;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+// Define to STBTT_assert(x) if you want to break on unimplemented formats.
|
|
|
|
+#define STBTT_GPOS_TODO_assert(x)
|
|
|
|
+
|
|
|
|
+static stbtt_int32 stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
|
|
|
|
+{
|
|
|
|
+ stbtt_uint16 lookupListOffset;
|
|
|
|
+ stbtt_uint8 *lookupList;
|
|
|
|
+ stbtt_uint16 lookupCount;
|
|
|
|
+ stbtt_uint8 *data;
|
|
|
|
+ stbtt_int32 i;
|
|
|
|
+
|
|
|
|
+ if (!info->gpos) return 0;
|
|
|
|
+
|
|
|
|
+ data = info->data + info->gpos;
|
|
|
|
+
|
|
|
|
+ if (ttUSHORT(data+0) != 1) return 0; // Major version 1
|
|
|
|
+ if (ttUSHORT(data+2) != 0) return 0; // Minor version 0
|
|
|
|
+
|
|
|
|
+ lookupListOffset = ttUSHORT(data+8);
|
|
|
|
+ lookupList = data + lookupListOffset;
|
|
|
|
+ lookupCount = ttUSHORT(lookupList);
|
|
|
|
+
|
|
|
|
+ for (i=0; i<lookupCount; ++i) {
|
|
|
|
+ stbtt_uint16 lookupOffset = ttUSHORT(lookupList + 2 + 2 * i);
|
|
|
|
+ stbtt_uint8 *lookupTable = lookupList + lookupOffset;
|
|
|
|
+
|
|
|
|
+ stbtt_uint16 lookupType = ttUSHORT(lookupTable);
|
|
|
|
+ stbtt_uint16 subTableCount = ttUSHORT(lookupTable + 4);
|
|
|
|
+ stbtt_uint8 *subTableOffsets = lookupTable + 6;
|
|
|
|
+ switch(lookupType) {
|
|
|
|
+ case 2: { // Pair Adjustment Positioning Subtable
|
|
|
|
+ stbtt_int32 sti;
|
|
|
|
+ for (sti=0; sti<subTableCount; sti++) {
|
|
|
|
+ stbtt_uint16 subtableOffset = ttUSHORT(subTableOffsets + 2 * sti);
|
|
|
|
+ stbtt_uint8 *table = lookupTable + subtableOffset;
|
|
|
|
+ stbtt_uint16 posFormat = ttUSHORT(table);
|
|
|
|
+ stbtt_uint16 coverageOffset = ttUSHORT(table + 2);
|
|
|
|
+ stbtt_int32 coverageIndex = stbtt__GetCoverageIndex(table + coverageOffset, glyph1);
|
|
|
|
+ if (coverageIndex == -1) continue;
|
|
|
|
+
|
|
|
|
+ switch (posFormat) {
|
|
|
|
+ case 1: {
|
|
|
|
+ stbtt_int32 l, r, m;
|
|
|
|
+ int straw, needle;
|
|
|
|
+ stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
|
|
|
|
+ stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
|
|
|
|
+ stbtt_int32 valueRecordPairSizeInBytes = 2;
|
|
|
|
+ stbtt_uint16 pairSetCount = ttUSHORT(table + 8);
|
|
|
|
+ stbtt_uint16 pairPosOffset = ttUSHORT(table + 10 + 2 * coverageIndex);
|
|
|
|
+ stbtt_uint8 *pairValueTable = table + pairPosOffset;
|
|
|
|
+ stbtt_uint16 pairValueCount = ttUSHORT(pairValueTable);
|
|
|
|
+ stbtt_uint8 *pairValueArray = pairValueTable + 2;
|
|
|
|
+ // TODO: Support more formats.
|
|
|
|
+ STBTT_GPOS_TODO_assert(valueFormat1 == 4);
|
|
|
|
+ if (valueFormat1 != 4) return 0;
|
|
|
|
+ STBTT_GPOS_TODO_assert(valueFormat2 == 0);
|
|
|
|
+ if (valueFormat2 != 0) return 0;
|
|
|
|
+
|
|
|
|
+ STBTT_assert(coverageIndex < pairSetCount);
|
|
|
|
+
|
|
|
|
+ needle=glyph2;
|
|
|
|
+ r=pairValueCount-1;
|
|
|
|
+ l=0;
|
|
|
|
+
|
|
|
|
+ // Binary search.
|
|
|
|
+ while (l <= r) {
|
|
|
|
+ stbtt_uint16 secondGlyph;
|
|
|
|
+ stbtt_uint8 *pairValue;
|
|
|
|
+ m = (l + r) >> 1;
|
|
|
|
+ pairValue = pairValueArray + (2 + valueRecordPairSizeInBytes) * m;
|
|
|
|
+ secondGlyph = ttUSHORT(pairValue);
|
|
|
|
+ straw = secondGlyph;
|
|
|
|
+ if (needle < straw)
|
|
|
|
+ r = m - 1;
|
|
|
|
+ else if (needle > straw)
|
|
|
|
+ l = m + 1;
|
|
|
|
+ else {
|
|
|
|
+ stbtt_int16 xAdvance = ttSHORT(pairValue + 2);
|
|
|
|
+ return xAdvance;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ case 2: {
|
|
|
|
+ stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
|
|
|
|
+ stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
|
|
|
|
+
|
|
|
|
+ stbtt_uint16 classDef1Offset = ttUSHORT(table + 8);
|
|
|
|
+ stbtt_uint16 classDef2Offset = ttUSHORT(table + 10);
|
|
|
|
+ int glyph1class = stbtt__GetGlyphClass(table + classDef1Offset, glyph1);
|
|
|
|
+ int glyph2class = stbtt__GetGlyphClass(table + classDef2Offset, glyph2);
|
|
|
|
+
|
|
|
|
+ stbtt_uint16 class1Count = ttUSHORT(table + 12);
|
|
|
|
+ stbtt_uint16 class2Count = ttUSHORT(table + 14);
|
|
|
|
+ STBTT_assert(glyph1class < class1Count);
|
|
|
|
+ STBTT_assert(glyph2class < class2Count);
|
|
|
|
+
|
|
|
|
+ // TODO: Support more formats.
|
|
|
|
+ STBTT_GPOS_TODO_assert(valueFormat1 == 4);
|
|
|
|
+ if (valueFormat1 != 4) return 0;
|
|
|
|
+ STBTT_GPOS_TODO_assert(valueFormat2 == 0);
|
|
|
|
+ if (valueFormat2 != 0) return 0;
|
|
|
|
+
|
|
|
|
+ if (glyph1class >= 0 && glyph1class < class1Count && glyph2class >= 0 && glyph2class < class2Count) {
|
|
|
|
+ stbtt_uint8 *class1Records = table + 16;
|
|
|
|
+ stbtt_uint8 *class2Records = class1Records + 2 * (glyph1class * class2Count);
|
|
|
|
+ stbtt_int16 xAdvance = ttSHORT(class2Records + 2 * glyph2class);
|
|
|
|
+ return xAdvance;
|
|
|
|
+ }
|
|
|
|
+ } break;
|
|
|
|
+
|
|
|
|
+ default: {
|
|
|
|
+ // There are no other cases.
|
|
|
|
+ STBTT_assert(0);
|
|
|
|
+ break;
|
|
|
|
+ };
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+ };
|
|
|
|
+
|
|
|
|
+ default:
|
|
|
|
+ // TODO: Implement other stuff.
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int g1, int g2)
|
|
|
|
+{
|
|
|
|
+ int xAdvance = 0;
|
|
|
|
+
|
|
|
|
+ if (info->gpos)
|
|
|
|
+ xAdvance += stbtt__GetGlyphGPOSInfoAdvance(info, g1, g2);
|
|
|
|
+
|
|
|
|
+ if (info->kern)
|
|
|
|
+ xAdvance += stbtt__GetGlyphKernInfoAdvance(info, g1, g2);
|
|
|
|
+
|
|
|
|
+ return xAdvance;
|
|
|
|
+}
|
|
|
|
+
|
|
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
|
|
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
|
|
{
|
|
{
|
|
- if (!info->kern) // if no kerning table, don't waste time looking up both codepoint->glyphs
|
|
|
|
|
|
+ if (!info->kern && !info->gpos) // if no kerning table, don't waste time looking up both codepoint->glyphs
|
|
return 0;
|
|
return 0;
|
|
return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
|
|
return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
|
|
}
|
|
}
|
|
@@ -2395,7 +2673,7 @@ static void *stbtt__hheap_alloc(stbtt__hheap *hh, size_t size, void *userdata)
|
|
hh->num_remaining_in_head_chunk = count;
|
|
hh->num_remaining_in_head_chunk = count;
|
|
}
|
|
}
|
|
--hh->num_remaining_in_head_chunk;
|
|
--hh->num_remaining_in_head_chunk;
|
|
- return (char *) (hh->head) + size * hh->num_remaining_in_head_chunk;
|
|
|
|
|
|
+ return (char *) (hh->head) + sizeof(stbtt__hheap_chunk) + size * hh->num_remaining_in_head_chunk;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
@@ -2449,7 +2727,7 @@ static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, i
|
|
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
|
|
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
|
|
STBTT_assert(z != NULL);
|
|
STBTT_assert(z != NULL);
|
|
if (!z) return z;
|
|
if (!z) return z;
|
|
-
|
|
|
|
|
|
+
|
|
// round dx down to avoid overshooting
|
|
// round dx down to avoid overshooting
|
|
if (dxdy < 0)
|
|
if (dxdy < 0)
|
|
z->dx = -STBTT_ifloor(STBTT_FIX * -dxdy);
|
|
z->dx = -STBTT_ifloor(STBTT_FIX * -dxdy);
|
|
@@ -2527,7 +2805,7 @@ static void stbtt__fill_active_edges(unsigned char *scanline, int len, stbtt__ac
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
-
|
|
|
|
|
|
+
|
|
e = e->next;
|
|
e = e->next;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
@@ -3229,8 +3507,9 @@ error:
|
|
|
|
|
|
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
|
|
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
|
|
{
|
|
{
|
|
- float scale = scale_x > scale_y ? scale_y : scale_x;
|
|
|
|
- int winding_count, *winding_lengths;
|
|
|
|
|
|
+ float scale = scale_x > scale_y ? scale_y : scale_x;
|
|
|
|
+ int winding_count = 0;
|
|
|
|
+ int *winding_lengths = NULL;
|
|
stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
|
|
stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
|
|
if (windings) {
|
|
if (windings) {
|
|
stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
|
|
stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
|
|
@@ -3248,7 +3527,7 @@ STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info
|
|
{
|
|
{
|
|
int ix0,iy0,ix1,iy1;
|
|
int ix0,iy0,ix1,iy1;
|
|
stbtt__bitmap gbm;
|
|
stbtt__bitmap gbm;
|
|
- stbtt_vertex *vertices;
|
|
|
|
|
|
+ stbtt_vertex *vertices;
|
|
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
|
|
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
|
|
|
|
|
|
if (scale_x == 0) scale_x = scale_y;
|
|
if (scale_x == 0) scale_x = scale_y;
|
|
@@ -3271,7 +3550,7 @@ STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info
|
|
if (height) *height = gbm.h;
|
|
if (height) *height = gbm.h;
|
|
if (xoff ) *xoff = ix0;
|
|
if (xoff ) *xoff = ix0;
|
|
if (yoff ) *yoff = iy0;
|
|
if (yoff ) *yoff = iy0;
|
|
-
|
|
|
|
|
|
+
|
|
if (gbm.w && gbm.h) {
|
|
if (gbm.w && gbm.h) {
|
|
gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
|
|
gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
|
|
if (gbm.pixels) {
|
|
if (gbm.pixels) {
|
|
@@ -3282,7 +3561,7 @@ STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info
|
|
}
|
|
}
|
|
STBTT_free(vertices, info->userdata);
|
|
STBTT_free(vertices, info->userdata);
|
|
return gbm.pixels;
|
|
return gbm.pixels;
|
|
-}
|
|
|
|
|
|
+}
|
|
|
|
|
|
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
|
|
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
|
|
{
|
|
{
|
|
@@ -3294,7 +3573,7 @@ STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigne
|
|
int ix0,iy0;
|
|
int ix0,iy0;
|
|
stbtt_vertex *vertices;
|
|
stbtt_vertex *vertices;
|
|
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
|
|
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
|
|
- stbtt__bitmap gbm;
|
|
|
|
|
|
+ stbtt__bitmap gbm;
|
|
|
|
|
|
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
|
|
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
|
|
gbm.pixels = output;
|
|
gbm.pixels = output;
|
|
@@ -3316,7 +3595,12 @@ STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *
|
|
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
|
|
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
|
|
{
|
|
{
|
|
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
|
|
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
|
|
-}
|
|
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint)
|
|
|
|
+{
|
|
|
|
+ stbtt_MakeGlyphBitmapSubpixelPrefilter(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, oversample_x, oversample_y, sub_x, sub_y, stbtt_FindGlyphIndex(info,codepoint));
|
|
|
|
+}
|
|
|
|
|
|
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
|
|
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
|
|
{
|
|
{
|
|
@@ -3326,7 +3610,7 @@ STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, uns
|
|
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
|
|
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
|
|
{
|
|
{
|
|
return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
|
|
return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
|
|
-}
|
|
|
|
|
|
+}
|
|
|
|
|
|
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
|
|
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
|
|
{
|
|
{
|
|
@@ -3451,7 +3735,7 @@ static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *no
|
|
con->y = 0;
|
|
con->y = 0;
|
|
con->bottom_y = 0;
|
|
con->bottom_y = 0;
|
|
STBTT__NOTUSED(nodes);
|
|
STBTT__NOTUSED(nodes);
|
|
- STBTT__NOTUSED(num_nodes);
|
|
|
|
|
|
+ STBTT__NOTUSED(num_nodes);
|
|
}
|
|
}
|
|
|
|
|
|
static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
|
|
static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
|
|
@@ -3826,7 +4110,7 @@ STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char
|
|
n = 0;
|
|
n = 0;
|
|
for (i=0; i < num_ranges; ++i)
|
|
for (i=0; i < num_ranges; ++i)
|
|
n += ranges[i].num_chars;
|
|
n += ranges[i].num_chars;
|
|
-
|
|
|
|
|
|
+
|
|
rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
|
|
rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
|
|
if (rects == NULL)
|
|
if (rects == NULL)
|
|
return 0;
|
|
return 0;
|
|
@@ -3837,7 +4121,7 @@ STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char
|
|
n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
|
|
n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
|
|
|
|
|
|
stbtt_PackFontRangesPackRects(spc, rects, n);
|
|
stbtt_PackFontRangesPackRects(spc, rects, n);
|
|
-
|
|
|
|
|
|
+
|
|
return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
|
|
return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
|
|
|
|
|
|
STBTT_free(rects, spc->user_allocator_context);
|
|
STBTT_free(rects, spc->user_allocator_context);
|
|
@@ -3909,7 +4193,7 @@ static int stbtt__ray_intersect_bezier(float orig[2], float ray[2], float q0[2],
|
|
float discr = b*b - a*c;
|
|
float discr = b*b - a*c;
|
|
if (discr > 0.0) {
|
|
if (discr > 0.0) {
|
|
float rcpna = -1 / a;
|
|
float rcpna = -1 / a;
|
|
- float d = (float) sqrt(discr);
|
|
|
|
|
|
+ float d = (float) STBTT_sqrt(discr);
|
|
s0 = (b+d) * rcpna;
|
|
s0 = (b+d) * rcpna;
|
|
s1 = (b-d) * rcpna;
|
|
s1 = (b-d) * rcpna;
|
|
if (s0 >= 0.0 && s0 <= 1.0)
|
|
if (s0 >= 0.0 && s0 <= 1.0)
|
|
@@ -3971,7 +4255,7 @@ static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex
|
|
orig[1] = y;
|
|
orig[1] = y;
|
|
|
|
|
|
// make sure y never passes through a vertex of the shape
|
|
// make sure y never passes through a vertex of the shape
|
|
- y_frac = (float) fmod(y, 1.0f);
|
|
|
|
|
|
+ y_frac = (float) STBTT_fmod(y, 1.0f);
|
|
if (y_frac < 0.01f)
|
|
if (y_frac < 0.01f)
|
|
y += 0.01f;
|
|
y += 0.01f;
|
|
else if (y_frac > 0.99f)
|
|
else if (y_frac > 0.99f)
|
|
@@ -3985,7 +4269,7 @@ static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex
|
|
int x1 = (int) verts[i ].x, y1 = (int) verts[i ].y;
|
|
int x1 = (int) verts[i ].x, y1 = (int) verts[i ].y;
|
|
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
|
|
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
|
|
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
|
|
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
|
|
- if (x_inter < x)
|
|
|
|
|
|
+ if (x_inter < x)
|
|
winding += (y0 < y1) ? 1 : -1;
|
|
winding += (y0 < y1) ? 1 : -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
@@ -4011,7 +4295,7 @@ static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex
|
|
y1 = (int)verts[i ].y;
|
|
y1 = (int)verts[i ].y;
|
|
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
|
|
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
|
|
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
|
|
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
|
|
- if (x_inter < x)
|
|
|
|
|
|
+ if (x_inter < x)
|
|
winding += (y0 < y1) ? 1 : -1;
|
|
winding += (y0 < y1) ? 1 : -1;
|
|
}
|
|
}
|
|
} else {
|
|
} else {
|
|
@@ -4023,7 +4307,7 @@ static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex
|
|
if (hits[1][0] < 0)
|
|
if (hits[1][0] < 0)
|
|
winding += (hits[1][1] < 0 ? -1 : 1);
|
|
winding += (hits[1][1] < 0 ? -1 : 1);
|
|
}
|
|
}
|
|
- }
|
|
|
|
|
|
+ }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return winding;
|
|
return winding;
|
|
@@ -4104,7 +4388,7 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
|
|
|
|
|
|
// invert for y-downwards bitmaps
|
|
// invert for y-downwards bitmaps
|
|
scale_y = -scale_y;
|
|
scale_y = -scale_y;
|
|
-
|
|
|
|
|
|
+
|
|
{
|
|
{
|
|
int x,y,i,j;
|
|
int x,y,i,j;
|
|
float *precompute;
|
|
float *precompute;
|
|
@@ -4253,7 +4537,7 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
|
|
STBTT_free(verts, info->userdata);
|
|
STBTT_free(verts, info->userdata);
|
|
}
|
|
}
|
|
return data;
|
|
return data;
|
|
-}
|
|
|
|
|
|
+}
|
|
|
|
|
|
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
|
|
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
|
|
{
|
|
{
|
|
@@ -4271,7 +4555,7 @@ STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata)
|
|
//
|
|
//
|
|
|
|
|
|
// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
|
|
// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
|
|
-static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, stbtt_int32 len1, stbtt_uint8 *s2, stbtt_int32 len2)
|
|
|
|
|
|
+static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, stbtt_int32 len1, stbtt_uint8 *s2, stbtt_int32 len2)
|
|
{
|
|
{
|
|
stbtt_int32 i=0;
|
|
stbtt_int32 i=0;
|
|
|
|
|
|
@@ -4310,7 +4594,7 @@ static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, s
|
|
return i;
|
|
return i;
|
|
}
|
|
}
|
|
|
|
|
|
-static int stbtt_CompareUTF8toUTF16_bigendian_internal(char *s1, int len1, char *s2, int len2)
|
|
|
|
|
|
+static int stbtt_CompareUTF8toUTF16_bigendian_internal(char *s1, int len1, char *s2, int len2)
|
|
{
|
|
{
|
|
return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((stbtt_uint8*) s1, len1, (stbtt_uint8*) s2, len2);
|
|
return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((stbtt_uint8*) s1, len1, (stbtt_uint8*) s2, len2);
|
|
}
|
|
}
|
|
@@ -4439,7 +4723,7 @@ STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset,
|
|
|
|
|
|
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index)
|
|
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index)
|
|
{
|
|
{
|
|
- return stbtt_GetFontOffsetForIndex_internal((unsigned char *) data, index);
|
|
|
|
|
|
+ return stbtt_GetFontOffsetForIndex_internal((unsigned char *) data, index);
|
|
}
|
|
}
|
|
|
|
|
|
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data)
|
|
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data)
|
|
@@ -4471,6 +4755,9 @@ STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const
|
|
|
|
|
|
// FULL VERSION HISTORY
|
|
// FULL VERSION HISTORY
|
|
//
|
|
//
|
|
|
|
+// 1.19 (2018-02-11) OpenType GPOS kerning (horizontal only), STBTT_fmod
|
|
|
|
+// 1.18 (2018-01-29) add missing function
|
|
|
|
+// 1.17 (2017-07-23) make more arguments const; doc fix
|
|
// 1.16 (2017-07-12) SDF support
|
|
// 1.16 (2017-07-12) SDF support
|
|
// 1.15 (2017-03-03) make more arguments const
|
|
// 1.15 (2017-03-03) make more arguments const
|
|
// 1.14 (2017-01-16) num-fonts-in-TTC function
|
|
// 1.14 (2017-01-16) num-fonts-in-TTC function
|
|
@@ -4529,38 +4816,38 @@ This software is available under 2 licenses -- choose whichever you prefer.
|
|
------------------------------------------------------------------------------
|
|
------------------------------------------------------------------------------
|
|
ALTERNATIVE A - MIT License
|
|
ALTERNATIVE A - MIT License
|
|
Copyright (c) 2017 Sean Barrett
|
|
Copyright (c) 2017 Sean Barrett
|
|
-Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
|
|
-this software and associated documentation files (the "Software"), to deal in
|
|
|
|
-the Software without restriction, including without limitation the rights to
|
|
|
|
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
|
|
-of the Software, and to permit persons to whom the Software is furnished to do
|
|
|
|
|
|
+Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
|
|
+this software and associated documentation files (the "Software"), to deal in
|
|
|
|
+the Software without restriction, including without limitation the rights to
|
|
|
|
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
|
|
+of the Software, and to permit persons to whom the Software is furnished to do
|
|
so, subject to the following conditions:
|
|
so, subject to the following conditions:
|
|
-The above copyright notice and this permission notice shall be included in all
|
|
|
|
|
|
+The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
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copies or substantial portions of the Software.
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-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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SOFTWARE.
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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ALTERNATIVE B - Public Domain (www.unlicense.org)
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ALTERNATIVE B - Public Domain (www.unlicense.org)
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This is free and unencumbered software released into the public domain.
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This is free and unencumbered software released into the public domain.
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-Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
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-software, either in source code form or as a compiled binary, for any purpose,
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+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
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+software, either in source code form or as a compiled binary, for any purpose,
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commercial or non-commercial, and by any means.
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commercial or non-commercial, and by any means.
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-In jurisdictions that recognize copyright laws, the author or authors of this
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-software dedicate any and all copyright interest in the software to the public
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-domain. We make this dedication for the benefit of the public at large and to
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-the detriment of our heirs and successors. We intend this dedication to be an
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-overt act of relinquishment in perpetuity of all present and future rights to
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+In jurisdictions that recognize copyright laws, the author or authors of this
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+software dedicate any and all copyright interest in the software to the public
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+domain. We make this dedication for the benefit of the public at large and to
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+the detriment of our heirs and successors. We intend this dedication to be an
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+overt act of relinquishment in perpetuity of all present and future rights to
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this software under copyright law.
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this software under copyright law.
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-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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-AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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-ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|
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+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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*/
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*/
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