Continue test rasterizer

- Support for creating .cquery file via "make cquery"
- Render some path for testing purposes
- Fix bugs in path parser

.cquery

@@ -1,5 +0,0 @@
-%clang
-%c -std=gnu99
-
--I./src
--I.

.gitignore

@@ -30,3 +30,4 @@ depcomp
 hvif
 install-sh
 missing
+.cquery

src/Makefile.am

@@ -26,3 +26,9 @@ hvif_SOURCES = \
 	src/hvif-cairo.h \
 	$(NULL)
 
+cquery:
+	echo '%clang' > .cquery
+	echo '%c -std=gnu11' >> .cquery
+	echo '$(CAIRO_CFLAGS)' | sed "s/ /\\n/g" >> .cquery
+
+.PHONY: cquery

src/hvif-cairo.c

@@ -1,18 +1,62 @@
 #include "hvif-light.h"
 
 #include <stdint.h>
+#include <assert.h>
 #include <cairo.h>
 
 #define INTERNAL_DATASTRUCTURES
 #include "hvif-light.c"
 #undef INTERNAL_DATASTRUCTURES
 
+/* TODO:
+ * 	1. Draw the path in each shape as outline
+ *  2. Then do the same for the styles
+ *  3. Put everything together
+ */
+
+void
+create_path(cairo_t* cr, hvif_path* path)
+{
+	assert(path->num_points > 0);
+
+	for (unsigned i = 0; i < path->num_points; ++i) {
+		hvif_point p = path->points[3 * i];
+		hvif_point cp1 = path->points[3 * i + 1];
+		hvif_point cp2 = path->points[3 * i + 2];
+		cairo_curve_to(cr, cp1.x, cp1.y, cp2.x, cp2.y, p.x, p.y);
+	}
+
+	if (path->closed)
+		cairo_close_path(cr);
+}
+
 bool
 hvif_render_image(const char* filename, hvif_image* image)
 {
 	cairo_surface_t* surface =
-		cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 240, 80);
+		cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 254, 254);
 	cairo_t* cr = cairo_create(surface);
+	cairo_scale(cr, 4.0, 4.0);
+
+	cairo_set_line_width(cr, 0.2);
+
+	double r = 0;
+	double delta = 1.0 / image->num_shapes;
+
+	for (unsigned i = 0; i < image->num_shapes; ++i) {
+		cairo_set_source_rgb(cr, r, 0, 0);
+		r = r + delta;
+		hvif_shape s = image->shapes[i];
+		if (s.hinting)
+			printf("shape %u has hinting\n", i);
+		else
+			printf("shape %u has no hinting\n", i);
+		for (unsigned j = 0; j < s.num_paths; ++j) {
+			hvif_path* p = &image->paths[s.path_idxs[j]];
+			create_path(cr, p);
+			cairo_stroke(cr);
+		}
+	}
 
 	cairo_destroy(cr);
 

src/hvif-cairo.h

@@ -1,7 +1,7 @@
 #ifndef HVIF_CAIRO_H
 #define HVIF_CAIRO_H
 
-#include "hvif-ligh.h"
+#include "hvif-light.h"
 
 bool hvif_render_image(const char* filename, hvif_image* image); 
 

src/hvif-light.c

@@ -463,7 +463,7 @@ read_path_points(FILE* file, hvif_path* path)
 				printf("%s: read v line.\n", __func__);
 #endif
 				point = last;
-				status = read_coordinate(file, &point.x);
+				status = read_coordinate(file, &point.y);
 				if (status != SUCCESS) return status;
 				point_in = point_out = point;
 				break;
@@ -485,17 +485,14 @@ read_path_points(FILE* file, hvif_path* path)
 				if (status != SUCCESS) return status;
 				status = read_coordinate(file, &point.y);
 				if (status != SUCCESS) return status;
-				point_in = point_out = point;
 				status = read_coordinate(file, &point_in.x);
 				if (status != SUCCESS) return status;
 				status = read_coordinate(file, &point_in.y);
 				if (status != SUCCESS) return status;
-				point_in = point_out = point;
 				status = read_coordinate(file, &point_out.x);
 				if (status != SUCCESS) return status;
 				status = read_coordinate(file, &point_out.y);
 				if (status != SUCCESS) return status;
-				point_in = point_out = point;
 				break;
 		}
 		unsigned base = i * 3;

src/main.c

@@ -1,5 +1,6 @@
 #include "config.h"
 #include "hvif-light.h"
+#include "hvif-cairo.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -36,6 +37,9 @@ main(int argc, char* argv[argc + 1])
 		return EXIT_FAILURE;
 	}
 	puts("Reading image succeeded.");
+
+	hvif_render_image("test.png", result.image);
+
 	hvif_free(result.image);
 
 	return EXIT_SUCCESS;