freetype: ~99% Core-API Coverage

- breaking structure changes
- optimazed examples
- more tests

freetype/src/image.zig

@@ -0,0 +1,52 @@
+const std = @import("std");
+const c = @import("c.zig");
+
+pub const Outline = @import("Outline.zig");
+
+pub const Vector = c.FT_Vector;
+pub const GlyphMetrics = c.FT_Glyph_Metrics;
+
+pub const PixelMode = enum(u3) {
+    none = c.FT_PIXEL_MODE_NONE,
+    mono = c.FT_PIXEL_MODE_MONO,
+    gray = c.FT_PIXEL_MODE_GRAY,
+    gray2 = c.FT_PIXEL_MODE_GRAY2,
+    gray4 = c.FT_PIXEL_MODE_GRAY4,
+    lcd = c.FT_PIXEL_MODE_LCD,
+    lcd_v = c.FT_PIXEL_MODE_LCD_V,
+    bgra = c.FT_PIXEL_MODE_BGRA,
+};
+
+pub const GlyphFormat = enum(u32) {
+    none = c.FT_GLYPH_FORMAT_NONE,
+    composite = c.FT_GLYPH_FORMAT_COMPOSITE,
+    bitmap = c.FT_GLYPH_FORMAT_BITMAP,
+    outline = c.FT_GLYPH_FORMAT_OUTLINE,
+    plotter = c.FT_GLYPH_FORMAT_PLOTTER,
+    svg = c.FT_GLYPH_FORMAT_SVG,
+};
+
+pub const Bitmap = struct {
+    handle: c.FT_Bitmap,
+
+    pub fn width(self: Bitmap) u32 {
+        return self.handle.width;
+    }
+
+    pub fn pitch(self: Bitmap) i32 {
+        return self.handle.pitch;
+    }
+
+    pub fn rows(self: Bitmap) u32 {
+        return self.handle.rows;
+    }
+
+    pub fn pixelMode(self: Bitmap) PixelMode {
+        return @intToEnum(PixelMode, self.handle.pixel_mode);
+    }
+
+    pub fn buffer(self: Bitmap) []const u8 {
+        const buffer_size = std.math.absCast(self.pitch()) * self.rows();
+        return self.handle.buffer[0..buffer_size];
+    }
+};