initial commit. This is icculus version 5542b94cae02a6333845854bbbd1abe0a259f1a4

ExternalLibs/FTGL/include/FTTextureGlyph.h

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+#ifndef     __FTTextureGlyph__
+#define     __FTTextureGlyph__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_GLYPH_H
+
+#include "FTGL.h"
+#include "FTGlyph.h"
+
+
+/**
+ * FTTextureGlyph is a specialisation of FTGlyph for creating texture
+ * glyphs.
+ * 
+ * @see FTGlyphContainer
+ *
+ */
+class FTGL_EXPORT FTTextureGlyph : public FTGlyph
+{
+    public:
+        /**
+         * Constructor
+         *
+         * @param glyph     The Freetype glyph to be processed
+         * @param id        The id of the texture that this glyph will be
+         *                  drawn in
+         * @param xOffset   The x offset into the parent texture to draw
+         *                  this glyph
+         * @param yOffset   The y offset into the parent texture to draw
+         *                  this glyph
+         * @param width     The width of the parent texture
+         * @param height    The height (number of rows) of the parent texture
+         */
+        FTTextureGlyph( FT_GlyphSlot glyph, int id, int xOffset, int yOffset, GLsizei width, GLsizei height);
+
+        /**
+         * Destructor
+         */
+        virtual ~FTTextureGlyph();
+
+        /**
+         * Renders this glyph at the current pen position.
+         *
+         * @param pen   The current pen position.
+         * @return      The advance distance for this glyph.
+         */
+        virtual const FTPoint& Render( const FTPoint& pen);
+        
+        /**
+         * Reset the currently active texture to zero to get into a known state before
+         * drawing a string. This is to get round possible threading issues.
+         */
+        static void ResetActiveTexture(){ activeTextureID = 0;}
+        
+    private:
+        /**
+         * The width of the glyph 'image'
+         */
+        int destWidth;
+
+        /**
+         * The height of the glyph 'image'
+         */
+        int destHeight;
+
+        /**
+         * Vector from the pen position to the topleft corner of the pixmap
+         */
+        FTPoint pos;
+        
+        /**
+         * The texture co-ords of this glyph within the texture.
+         */
+        FTPoint uv[2];
+        
+        /**
+         * The texture index that this glyph is contained in.
+         */
+        int glTextureID;
+
+        /**
+         * The texture index of the currently active texture
+         *
+         * We keep track of the currently active texture to try to reduce the number
+         * of texture bind operations.
+         */
+        static GLint activeTextureID;
+        
+};
+
+
+#endif  //  __FTTextureGlyph__