From f4622608baf58fed2d7d2b6cf2326b595c906d0d Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 12 Apr 2017 12:27:29 +0200
Subject: cairo rendering

---
 drmtest.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

(limited to 'drmtest.c')

diff --git a/drmtest.c b/drmtest.c
index 70501a7..cc602fb 100644
--- a/drmtest.c
+++ b/drmtest.c
@@ -18,7 +18,11 @@
 #include <epoxy/gl.h>
 #include <epoxy/egl.h>
 
+#include <cairo.h>
+#include <cairo-gl.h>
+
 #include "drmtools.h"
+#include "render.h"
 
 /* ------------------------------------------------------------------ */
 
@@ -42,6 +46,10 @@ static EGLConfig cfg;
 static EGLContext ctx;
 static EGLSurface surface;
 
+/* cairo */
+cairo_surface_t *cs;
+cairo_t *cc;
+
 /* ------------------------------------------------------------------ */
 
 static void drm_init_dev(int devnr, const char *output,
@@ -193,22 +201,21 @@ static void drm_init_dumb_fb(void)
         fprintf(stderr, "framebuffer mmap: %s\n", strerror(errno));
         exit(1);
     }
+
+    cs = cairo_image_surface_create_for_data(fbmem,
+                                             CAIRO_FORMAT_ARGB32,
+                                             creq.width,
+                                             creq.height,
+                                             creq.pitch);
 }
 
 static void drm_draw_dumb_fb(void)
 {
-    int x, y;
-    uint8_t *ptr;
-
-    for (y = 0; y < creq.height; y++) {
-        for (x = 0; x < creq.width; x++) {
-            ptr = fbmem + creq.pitch * y + 4 * x;
-            ptr[0] = 0;         /* blue  */
-            ptr[1] = x & 0xff;  /* green */
-            ptr[2] = y & 0xff;  /* red   */
-            ptr[3] = 0;         /* alpha */
-        }
-    }
+    cairo_t *cr;
+
+    cr = cairo_create(cs);
+    render_test(cr, mode->hdisplay, mode->vdisplay);
+    cairo_destroy(cr);
     drmModeDirtyFB(fd, fb_id, 0, 0);
 }
 
-- 
cgit