Cairo Graphics support with C-Example

Also i removed "./autogen.sh" from libpng.

recipes/cairo/recipe.sh

+VERSION="1.16.0"
+TAR=https://www.cairographics.org/releases/cairo-$VERSION.tar.xz
+BUILD_DEPENDS=(zlib pixman freetype libpng)
+
+function recipe_version {
+	echo "$VERSION"
+	skip=1
+}
+
+function recipe_update {
+	echo "skipping update"
+	skip=1
+}
+
+function recipe_build {
+	#Workaround to disable the not redox compatible tests
+	printf "all:\n\ninstall:\n" > ./test/Makefile.in
+	printf "all:\n\ninstall:\n" > ./perf/Makefile.in
+
+	sysroot="$(realpath ../sysroot)"
+	export LDFLAGS="-L$sysroot/lib"
+	export CPPFLAGS="-I$sysroot/include"
+	CFLAGS="-DCAIRO_NO_MUTEX=1" ./configure --host=${HOST} --prefix=/ --enable-xlib=no --enable-script=no --enable-interpreter=no
+	make
+    	skip=1
+}
+
+function recipe_test {
+	echo "skipping test"
+	skip=1
+}
+
+function recipe_clean {
+	make clean
+	skip=1
+}
+
+function recipe_stage {
+	echo "skipping stage"
+	dest="$(realpath $1)"
+	make DESTDIR="$dest" install
+	skip=1
+}

recipes/cairodemo/cairodemo.c

+#include <stdint.h>
+#include <math.h>
+#include <stdlib.h>
+#include <cairo/cairo.h>
+#include <orbital.h>
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+static int width = 800;
+static int height = 600;
+
+static void
+travel_path (cairo_t *cr)
+{
+
+  cairo_pattern_t *pat;
+
+  pat = cairo_pattern_create_linear (0.0, 0.0,  0.0, 256.0);
+  cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 0, 1);
+  cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1);
+  cairo_rectangle (cr, 0, 0, 256, 256);
+  cairo_set_source (cr, pat);
+  cairo_fill (cr);
+  cairo_pattern_destroy (pat);
+
+  pat = cairo_pattern_create_radial (115.2, 102.4, 25.6,
+                                    102.4,  102.4, 128.0);
+  cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1);
+  cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 0, 1);
+  cairo_set_source (cr, pat);
+  cairo_arc (cr, 128.0, 128.0, 76.8, 0, 2 * M_PI);
+  cairo_fill (cr);
+  cairo_pattern_destroy (pat);
+
+
+  double x         = 305.6,        /* parameters like cairo_rectangle */
+        y         = 25.6,
+        width         = 204.8,
+        height        = 204.8,
+        aspect        = 1.0,     /* aspect ratio */
+        corner_radius = height / 10.0;   /* and corner curvature radius */
+
+  double radius = corner_radius / aspect;
+  double degrees = M_PI / 180.0;
+
+  cairo_new_sub_path (cr);
+  cairo_arc (cr, x + width - radius, y + radius, radius, -90 * degrees, 0 * degrees);
+  cairo_arc (cr, x + width - radius, y + height - radius, radius, 0 * degrees, 90 * degrees);
+  cairo_arc (cr, x + radius, y + height - radius, radius, 90 * degrees, 180 * degrees);
+  cairo_arc (cr, x + radius, y + radius, radius, 180 * degrees, 270 * degrees);
+  cairo_close_path (cr);
+
+  cairo_set_source_rgb (cr, 0.5, 0.5, 1);
+  cairo_fill_preserve (cr);
+  cairo_set_source_rgba (cr, 0.5, 0, 0, 0.5);
+  cairo_set_line_width (cr, 10.0);
+  cairo_stroke (cr);
+
+
+  double xc = 128.0;
+  double yc = 128.0;
+  radius = 100.0;
+  double angle1 = 45.0  * (M_PI/180.0);  /* angles are specified */
+  double angle2 = 180.0 * (M_PI/180.0);  /* in radians           */
+
+  cairo_set_line_width (cr, 10.0);
+  cairo_arc (cr, xc, yc, radius, angle1, angle2);
+  cairo_stroke (cr);
+
+  /* draw helping lines */
+  cairo_set_source_rgba (cr, 1, 0.2, 0.2, 0.6);
+  cairo_set_line_width (cr, 6.0);
+
+  cairo_arc (cr, xc, yc, 10.0, 0, 2*M_PI);
+  cairo_fill (cr);
+
+  cairo_arc (cr, xc, yc, radius, angle1, angle1);
+  cairo_line_to (cr, xc, yc);
+  cairo_arc (cr, xc, yc, radius, angle2, angle2);
+  cairo_line_to (cr, xc, yc);
+  cairo_stroke (cr);
+}
+
+static void 
+draw (cairo_surface_t *surface)
+{
+  cairo_t *cr;
+  cr = cairo_create (surface);
+  travel_path (cr);
+  cairo_destroy (cr);
+}
+
+int
+main(int argc, char *argv[])
+{
+  void * window = orb_window_new(-1, -1, width, height, "CairoDemo");
+  
+  //Cairo
+  uint32_t * frame_data = orb_window_data(window);
+  cairo_surface_t *surface = cairo_image_surface_create_for_data((uint8_t*) frame_data, CAIRO_FORMAT_ARGB32, width, height, cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width));
+  cairo_create(surface);
+  draw (surface);
+
+  orb_window_sync(window);
+
+  char running = 1;
+  while (running) {
+   void * event_iter = orb_window_events(window);
+
+   OrbEventOption event_option;
+   do {
+     event_option = orb_events_next(event_iter);
+     switch (event_option.tag) {
+       case OrbEventOption_Quit:
+         running = 0;
+         break;
+       default:
+         break;
+     }
+   } while (running && event_option.tag != OrbEventOption_None);
+
+   orb_events_destroy(event_iter);
+  }
+  orb_window_destroy(window);
+  return 0;             /* ANSI C requires main to return int. */
+}
+

recipes/cairodemo/recipe.sh

+BUILD_DEPENDS=(liborbital cairo pixman zlib libpng freetype)
+
+function recipe_version {
+    printf "1.0.0"
+    skip=1
+}
+
+function recipe_update {
+    echo "skipping update"
+    skip=1
+}
+
+function recipe_prepare {
+    rm -rf source
+    mkdir source
+    cp cairodemo.c source
+}
+
+function recipe_build {
+    sysroot="$(realpath ../sysroot)"
+    export LDFLAGS="-L$sysroot/lib"
+    export CPPFLAGS="-I$sysroot/include"
+    set -x
+    "${CXX}" -I "$sysroot/include" -L "$sysroot/lib" cairodemo.c -o cairodemo -lorbital -lcairo -lpixman-1 -lfreetype -lpng -lz -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -lm
+    set +x
+    skip=1
+}
+
+function recipe_test {
+    echo "skipping test"
+    skip=1
+}
+
+function recipe_clean {
+    make clean
+    skip=1
+}
+
+function recipe_stage {
+    dest="$(realpath $1)"
+    mkdir -pv "$dest/bin"
+    cp -v "cairodemo" "$dest/bin/cairodemo"
+    skip=1
+}

recipes/libpng/recipe.sh

@@ -16,7 +16,7 @@ function recipe_build {
     sysroot="$(realpath ../sysroot)"
     export LDFLAGS="-L$sysroot/lib"
     export CPPFLAGS="-I$sysroot/include"
-    ./autogen.sh
+    #./autogen.sh
     chmod +w config.sub
     wget -O config.sub http://git.savannah.gnu.org/cgit/config.git/plain/config.sub
     ./configure --host=${HOST} --prefix='/'

recipes/pixman/recipe.sh

+VERSION="0.36.0"
+TAR=https://www.cairographics.org/releases/pixman-$VERSION.tar.gz
+
+function recipe_version {
+	echo "$VERSION"
+	skip=1
+}
+
+function recipe_update {
+	echo "skipping update"
+	skip=1
+}
+
+function recipe_build {
+	sysroot="$(realpath ../sysroot)"
+	./configure --host=${HOST} --prefix=/
+	make -j"$(nproc)"
+	skip=1
+}
+
+function recipe_test {
+	echo "skipping test"
+	skip=1
+}
+
+function recipe_clean {
+	make clean
+	skip=1
+}
+
+function recipe_stage {
+	echo "skipping stage"
+	dest="$(realpath $1)"
+	make DESTDIR="$dest" install
+	skip=1
+}