Move clients to subdirectory

clients/flower.c

@@ -0,0 +1,195 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <math.h>
+#include <time.h>
+#include <cairo.h>
+#include <glib.h>
+#include <cairo-drm.h>
+
+#include "wayland-client.h"
+#include "wayland-glib.h"
+
+static const char gem_device[] = "/dev/dri/card0";
+static const char socket_name[] = "\0wayland";
+
+static void
+set_random_color(cairo_t *cr)
+{
+	cairo_set_source_rgba(cr,
+			      0.5 + (random() % 50) / 49.0,
+			      0.5 + (random() % 50) / 49.0,
+			      0.5 + (random() % 50) / 49.0,
+			      0.5 + (random() % 100) / 99.0);
+}
+
+
+static void
+draw_stuff(cairo_surface_t *surface, int width, int height)
+{
+	const int petal_count = 3 + random() % 5;
+	const double r1 = 60 + random() % 35;
+	const double r2 = 20 + random() % 40;
+	const double u = (10 + random() % 90) / 100.0;
+	const double v = (random() % 90) / 100.0;
+
+	cairo_t *cr;
+	int i;
+	double t, dt = 2 * M_PI / (petal_count * 2);
+	double x1, y1, x2, y2, x3, y3;
+
+	cr = cairo_create(surface);
+	cairo_translate(cr, width / 2, height / 2);
+	cairo_move_to(cr, cos(0) * r1, sin(0) * r1);
+	for (t = 0, i = 0; i < petal_count; i++, t += dt * 2) {
+		x1 = cos(t) * r1;
+		y1 = sin(t) * r1;
+		x2 = cos(t + dt) * r2;
+		y2 = sin(t + dt) * r2;
+		x3 = cos(t + 2 * dt) * r1;
+		y3 = sin(t + 2 * dt) * r1;
+
+		cairo_curve_to(cr,
+			       x1 - y1 * u, y1 + x1 * u,
+			       x2 + y2 * v, y2 - x2 * v,
+			       x2, y2);			       
+
+		cairo_curve_to(cr,
+			       x2 - y2 * v, y2 + x2 * v,
+			       x3 + y3 * u, y3 - x3 * u,
+			       x3, y3);
+	}
+
+	cairo_close_path(cr);
+	set_random_color(cr);
+	cairo_fill_preserve(cr);
+	set_random_color(cr);
+	cairo_stroke(cr);
+
+	cairo_destroy(cr);
+}
+
+struct flower {
+	struct wl_compositor *compositor;
+	struct wl_surface *surface;
+	int x, y, width, height;
+	int offset;
+};
+
+static void
+handle_acknowledge(void *data,
+			  struct wl_compositor *compositor,
+			  uint32_t key, uint32_t frame)
+{
+}
+
+static void
+handle_frame(void *data,
+		    struct wl_compositor *compositor,
+		    uint32_t frame, uint32_t timestamp)
+{
+	struct flower *flower = data;
+
+	wl_surface_map(flower->surface, 
+		       flower->x + cos((flower->offset + timestamp) / 400.0) * 400 - flower->width / 2,
+		       flower->y + sin((flower->offset + timestamp) / 320.0) * 300 - flower->height / 2,
+		       flower->width, flower->height);
+	wl_compositor_commit(flower->compositor, 0);
+}
+
+static const struct wl_compositor_listener compositor_listener = {
+	handle_acknowledge,
+	handle_frame,
+};
+
+int main(int argc, char *argv[])
+{
+	struct wl_display *display;
+	struct wl_visual *visual;
+	int fd;
+	cairo_device_t *device;
+	cairo_surface_t *s;
+	struct timespec ts;
+	GMainLoop *loop;
+	GSource *source;
+	struct flower flower;
+
+	fd = open(gem_device, O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, "drm open failed: %m\n");
+		return -1;
+	}
+
+	loop = g_main_loop_new(NULL, FALSE);
+
+	display = wl_display_create(socket_name, sizeof socket_name);
+	if (display == NULL) {
+		fprintf(stderr, "failed to create display: %m\n");
+		return -1;
+	}
+
+	source = wl_glib_source_new(display);
+	g_source_attach(source, NULL);
+
+	/* Process connection events. */
+	wl_display_iterate(display, WL_DISPLAY_READABLE);
+
+	flower.compositor = wl_display_get_compositor(display);
+	flower.x = 512;
+	flower.y = 384;
+	flower.width = 200;
+	flower.height = 200;
+	flower.surface = wl_compositor_create_surface(flower.compositor);
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	srandom(ts.tv_nsec);
+	flower.offset = random();
+
+	device = cairo_drm_device_get_for_fd(fd);
+	s = cairo_drm_surface_create(device,
+				     CAIRO_CONTENT_COLOR_ALPHA,
+				     flower.width, flower.height);
+	draw_stuff(s, flower.width, flower.height);
+
+	visual = wl_display_get_premultiplied_argb_visual(display);
+	wl_surface_attach(flower.surface,
+			  cairo_drm_surface_get_name(s),
+			  flower.width, flower.height,
+			  cairo_drm_surface_get_stride(s),
+			  visual);
+
+	wl_compositor_add_listener(flower.compositor,
+				   &compositor_listener, &flower);
+
+	wl_compositor_commit(flower.compositor, 0);
+
+	g_main_loop_run(loop);
+
+	return 0;
+}