1 files changed, 59 insertions, 0 deletions
diff --git a/render/renderimage.c b/render/renderimage.c
new file mode 100644
index 00000000..4c6ef816
--- /dev/null
+++ b/render/renderimage.c
@@ -0,0 +1,59 @@
+#include <fitz.h>
+
+static int cmpy(const void *a, const void *b)
+{
+	const fz_point *ap = a;
+	const fz_point *bp = b;
+	return bp->y - ap->y;
+}
+
+static void
+drawtile(fz_pixmap *out, fz_pixmap *tile, fz_matrix ctm)
+{
+	static const fz_point rect[4] = { {0, 0}, {0, 1}, {1, 1}, {1, 0} };
+	fz_point v[4];
+	int i;
+
+	for (i = 0; i < 4; i++)
+		v[i] = fz_transformpoint(ctm, rect[i]);
+
+	qsort(v, 4, sizeof(fz_point), cmpy);
+
+	for (i = 0; i < 4; i++)
+		printf("%d: %g %g\n", i, v[i].x, v[i].y);
+
+}
+
+fz_error *
+fz_renderimage(fz_renderer *gc, fz_imagenode *node, fz_matrix ctm)
+{
+	fz_error *error;
+	fz_pixmap *tile;
+	fz_image *image = node->image;
+	fz_colorspace *cs = image->cs;
+	int w = image->w;
+	int h = image->h;
+	int n = image->n;
+
+	error = fz_newpixmap(&tile, cs, 0, 0, w, h, n, 1);
+	if (error)
+		return error;
+
+	error = fz_newpixmap(&gc->tmp, cs, gc->x, gc->y, gc->w, gc->h, n, 1);
+	if (error)
+		goto cleanup;
+
+	error = image->loadtile(image, tile);
+	if (error)
+		goto cleanup;
+
+	drawtile(gc->tmp, tile, ctm);
+
+	fz_freepixmap(tile);
+	return nil;
+
+cleanup:
+	fz_freepixmap(tile);
+	return error;
+}
+