CARPLAY版本整理

MXC_A27-PCB4.5-270T/app/pointer_halo/vg_font.h

@@ -0,0 +1,86 @@
+#ifndef VG_FONT_H
+#define VG_FONT_H
+
+#include <VG/openvg.h>
+
+
+typedef struct {
+    // glyph index within the OpenVG font object
+    VGuint glyphIndex;
+    // the advance width for this glyph
+    VGfloat escapement[2];
+    // OpenVG path commands defining the glyph geometry
+    VGint commandsCount;
+    const VGubyte* commands;
+    // OpenVG path coordinates defining the glyph geometry
+    VGint coordinatesCount;
+    const VGfloat* coordinates;
+    // fill rule of glyph geometry
+    VGFillRule fillRule;
+} Glyph;
+
+typedef struct {
+    // the key representing two glyph indices ((leftGlyphIndex << 16) + rightGlyphIndex)
+    VGuint key;
+    // the kerning amount relative to the chars couple
+    VGfloat x;
+    VGfloat y;
+} KerningEntry;
+
+typedef struct {
+    // OpenVG font object
+    VGFont openvgHandle;
+    // glyphs data
+    const Glyph* glyphs;
+    // number of glyphs
+    const VGuint glyphsCount;
+    // kerning table
+    const KerningEntry* kerningTable;
+    // number of kerning entries
+    const VGuint kerningTableSize;
+} Font;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// given a character code, return its glyph index
+VGint glyphIndexFromCharCode(const Font* font,
+                             const VGint charCode);
+
+// given a glyph index, return the associated Glyph structure
+const Glyph* glyphFromGlyphIndex(const Font* font,
+                                 const VGint glyphIndex);
+
+// given a character code, return the associated Glyph structure
+const Glyph* glyphFromCharCode(const Font* font,
+                               const VGint charCode);
+
+// given a couple of glyph indices, return the relative kerning (NULL if kerning is zero)
+const KerningEntry* kerningFromGlyphIndices(const Font* font,
+                                            const VGint leftGlyphIndex,
+                                            const VGint rightGlyphIndex);
+
+// given a couple of character codes, return the relative kerning (NULL if kerning is zero)
+const KerningEntry* kerningFromCharCodes(const Font* font,
+                                         const VGint leftCharCode,
+                                         const VGint rightCharCode);
+
+// <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ߴ<EFBFBD>
+int vgTextSize(const Font* font, const char* str, VGfloat *cx, VGfloat *cy);
+
+
+int vgTextOut (const Font* font,
+                  const char* str,
+                  const VGbitfield paintModes);
+
+int vgFontInit (void);
+
+int vgFontExit (void);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VG_FONT_H */