[[ Graphics ]] Drawing

runrevmark · runrevmark · commit 297d1d0b993f · 2017-12-12T13:39:45.000Z
This patch adds the notion of a 'Drawing' to libgraphics.

A drawing is a simple bytecode format for efficiently representing
what are generally called 'vector graphics' - i.e. a combination
of geometric shapes which are painted using solid colors, gradients
and patterns.

Currently the format can represent a subset of SVG Tiny 1.2, although
it is designed so that it can be easily evolved to support ever
greater subsets.

The drawing format has been designed so that a drawing file can be
mapped into memory and executed without any processing - greater
efficiency being possible in the future by caching various runtime
aspects.
diff --git a/libgraphics/include/graphics.h b/libgraphics/include/graphics.h
@@ -1015,6 +1015,8 @@ void MCGContextDrawPlatformText(MCGContextRef context, const unichar_t *text, ui
 MCGFloat MCGContextMeasurePlatformText(MCGContextRef context, const unichar_t *text, uindex_t length, const MCGFont &p_font, const MCGAffineTransform &p_transform);
 bool MCGContextMeasurePlatformTextImageBounds(MCGContextRef context, const unichar_t *text, uindex_t length, const MCGFont &p_font, const MCGAffineTransform &p_transform, MCGRectangle &r_bounds);
 
+void MCGContextPlayback(MCGContextRef context, MCGRectangle p_dst_rect, const void *p_drawing, size_t p_drawing_byte_size);
+
 ////////////////////////////////////////////////////////////////////////////////
 
 // Transforms
diff --git a/libgraphics/libgraphics.gyp b/libgraphics/libgraphics.gyp
@@ -43,6 +43,7 @@
 				'src/utils.cpp',
 				'src/SkStippleMaskFilter.cpp',
 				'src/legacygradients.cpp',
+				'src/drawing.cpp',
 			],
 			
 			'conditions':
diff --git a/libgraphics/src/drawing.cpp b/libgraphics/src/drawing.cpp
