1 files changed, 114 insertions, 0 deletions
diff --git a/src/plot.c b/src/plot.c
new file mode 100644
index 0000000..8f46cfe
--- /dev/null
+++ b/src/plot.c
@@ -0,0 +1,114 @@
+/* public plotter interface */
+
+#include <stdbool.h>
+
+#include "libnsfb.h"
+#include "libnsfb_plot.h"
+#include "nsfb.h"
+#include "nsfb_plot.h"
+
+/** Sets a clip rectangle for subsequent plots.
+ *
+ * Sets a clipping area which constrains all subsequent plotting operations.
+ * The clipping area must lie within the framebuffer visible screen or false
+ * will be returned and the new clipping area not set.
+ */
+bool nsfb_plot_set_clip(nsfb_t *nsfb, nsfb_bbox_t *clip)
+{
+    return nsfb->plotter_fns->clip(nsfb, clip);
+}
+
+/** Clears plotting area to a flat colour.
+ */
+bool nsfb_plot_clg(nsfb_t *nsfb, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->clg(nsfb, c);
+}
+
+/** Plots a rectangle outline. 
+ *
+ * The line can be solid, dotted or dashed. Top left corner at (x0,y0) and
+ * rectangle has given width and height.
+ */
+bool 
+nsfb_plot_rectangle(nsfb_t *nsfb, 
+                    nsfb_bbox_t *rect, 
+                    int line_width, 
+                    nsfb_colour_t c, 
+                    bool dotted, 
+                    bool dashed)
+{
+    return nsfb->plotter_fns->rectangle(nsfb, rect, line_width, c, dotted, dashed);
+
+}
+
+/** Plots a filled rectangle. Top left corner at (x0,y0), bottom
+ *		  right corner at (x1,y1). Note: (x0,y0) is inside filled area,
+ *		  but (x1,y1) is below and to the right. See diagram below.
+ */
+bool nsfb_plot_rectangle_fill(nsfb_t *nsfb, nsfb_bbox_t *rect, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->fill(nsfb, rect, c);
+}
+
+/** Plots a line.
+ *
+ * Draw a line from (x0,y0) to (x1,y1). Coordinates are at centre of line
+ * width/thickness.
+ */
+bool nsfb_plot_line(nsfb_t *nsfb, nsfb_bbox_t *line, int line_width, nsfb_colour_t c, bool dotted, bool dashed)
+{
+    return nsfb->plotter_fns->line(nsfb, line, line_width, c, dotted, dashed);
+}
+
+/** Plots a filled polygon. 
+ *
+ * Plots a filled polygon with straight lines between points. The lines around
+ * the edge of the ploygon are not plotted. The polygon is filled with a
+ * non-zero winding rule.
+ *
+ *
+ */
+bool nsfb_plot_polygon(nsfb_t *nsfb, const int *p, unsigned int n, nsfb_colour_t fill)
+{
+    return nsfb->plotter_fns->polygon(nsfb, p, n, fill);
+}
+
+/** Plots an arc.
+ *
+ * around (x,y), from anticlockwise from angle1 to angle2. Angles are measured
+ * anticlockwise from horizontal, in degrees.
+ */
+bool nsfb_plot_arc(nsfb_t *nsfb, int x, int y, int radius, int angle1, int angle2, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->arc(nsfb, x, y, radius, angle1, angle2, c);
+}
+
+/** Plots an alpha blended pixel.
+ *
+ * plots an alpha blended pixel.
+ */
+bool nsfb_plot_point(nsfb_t *nsfb, int x, int y, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->point(nsfb, x, y, c);
+}
+
+bool nsfb_plot_ellipse(nsfb_t *nsfb, nsfb_bbox_t *ellipse, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->ellipse(nsfb, ellipse, c);
+}
+
+bool nsfb_plot_ellipse_fill(nsfb_t *nsfb, nsfb_bbox_t *ellipse, nsfb_colour_t c)
+{
+    return nsfb->plotter_fns->ellipse_fill(nsfb, ellipse, c);
+}
+
+bool nsfb_plot_copy(nsfb_t *nsfb, int srcx, int srcy, int width, int height, int dstx, int dsty)
+{
+    return nsfb->plotter_fns->copy(nsfb, srcx, srcy, width, height, dstx, dsty);
+}
+
+bool nsfb_plot_bitmap(nsfb_t *nsfb, nsfb_bbox_t *loc,  nsfb_colour_t *pixel, int bmp_width, int bmp_height, int bmp_stride, bool alpha)
+{
+    return nsfb->plotter_fns->bitmap(nsfb, loc,  pixel, bmp_width, bmp_height, bmp_stride, alpha);
+}