Ready. Set. Go!

TODO.org

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+- [-] Vector Graphics
+  - [X] cairo
+    - [X] [[https://www.cairographics.org/][cairographics.org]]
+      - [X] bezier curve
+        - [X] They work quite well
+  - [ ] 
+- [ ] Fast feedback loop preview
+  - [ ] SDL
+    - [ ] [[https://www.libsdl.org/download-2.0.php][Simple DirectMedia Layer - SDL version 2.0.9 (stable)]]
+- [ ] Functional Programming
+- [ ] Static typing
+- [ ] Quick video rendering

cairo-probe/.gitignore

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+cairo-probe
+hello.png

cairo-probe/Makefile

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+hello.png: cairo-probe
+	./cairo-probe
+
+cairo-probe: main.c
+	gcc -Wall -Werror $(shell pkg-config --cflags cairo) \
+		-o cairo-probe main.c \
+		$(shell pkg-config --libs cairo)

cairo-probe/default.nix

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+with import <nixpkgs> {}; {
+    cairoprobeEnv = stdenv.mkDerivation {
+        name = "cairoprobe-env";
+        buildInputs = [ stdenv
+                        gcc
+                        pkgconfig
+                        cairo
+                      ];
+    };
+}

cairo-probe/main.c

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+#include <stdio.h>
+#include <stdlib.h>
+
+#include <cairo.h>
+
+#define SCREEN_WIDTH 240
+#define SCREEN_HEIGHT 80
+
+int main(int argc, char *argv[])
+{
+    cairo_surface_t *surface =
+        cairo_image_surface_create(
+            CAIRO_FORMAT_ARGB32,
+            SCREEN_WIDTH,
+            SCREEN_HEIGHT);
+    cairo_t *cr = cairo_create(surface);
+
+    cairo_select_font_face(
+
+        cr, "serif",
+        CAIRO_FONT_SLANT_NORMAL,
+        CAIRO_FONT_WEIGHT_BOLD);
+    cairo_set_font_size(cr, 32.0);
+    cairo_set_source_rgb(cr, 0.0, 1.0, 1.0);
+    cairo_move_to(cr, 10.0, 50.0);
+    cairo_show_text(cr, "4HEad");
+
+    cairo_set_source_rgbz(cr, 1.0, 0.0, 0.0);
+    cairo_move_to(cr, 0.0, 0.0);
+    cairo_curve_to(cr, 0.0, SCREEN_HEIGHT,
+                   SCREEN_WIDTH, SCREEN_HEIGHT,
+                   SCREEN_WIDTH, 0.0);
+    cairo_set_line_width(cr, 5);
+    cairo_stroke(cr);
+
+    cairo_destroy(cr);
+    cairo_surface_write_to_png(surface, "hello.png");
+    cairo_surface_destroy(surface);
+
+    return 0;
+}