[boilerplate] Strip xcb boilerplate into cairo-boilerplate-xcb*

1 files changed, 115 insertions, 0 deletions

diff --git a/boilerplate/cairo-boilerplate-xcb.c b/boilerplate/cairo-boilerplate-xcb.c
new file mode 100644
index 000000000..2cc88cdea
--- /dev/null
+++ b/boilerplate/cairo-boilerplate-xcb.c
@@ -0,0 +1,115 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright © 2004,2006 Red Hat, Inc.
+ *
+ * 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
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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.
+ *
+ * Author: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairo-boilerplate.h"
+#include "cairo-boilerplate-xcb-private.h"
+
+#include "cairo-xcb-xrender.h"
+
+#include <xcb/xcb_renderutil.h>
+
+typedef struct _xcb_target_closure
+{
+    xcb_connection_t *c;
+    xcb_pixmap_t pixmap;
+} xcb_target_closure_t;
+
+void
+_cairo_boilerplate_xcb_synchronize (void *closure)
+{
+    xcb_target_closure_t *xtc = closure;
+    free (xcb_get_image_reply (xtc->c,
+		xcb_get_image (xtc->c, XCB_IMAGE_FORMAT_Z_PIXMAP,
+		    xtc->pixmap, 0, 0, 1, 1, /* AllPlanes */ ~0UL),
+		0));
+}
+
+cairo_surface_t *
+_cairo_boilerplate_xcb_create_surface (const char		 *name,
+				       cairo_content_t		  content,
+				       int			  width,
+				       int			  height,
+				       cairo_boilerplate_mode_t	  mode,
+				       void			**closure)
+{
+    xcb_screen_t *root;
+    xcb_target_closure_t *xtc;
+    cairo_surface_t *surface;
+    xcb_connection_t *c;
+    xcb_render_pictforminfo_t *render_format;
+    xcb_pict_standard_t format;
+
+    *closure = xtc = xmalloc (sizeof (xcb_target_closure_t));
+
+    if (width == 0)
+	width = 1;
+    if (height == 0)
+	height = 1;
+
+    xtc->c = c = xcb_connect(NULL,NULL);
+    if (xcb_connection_has_error(c)) {
+	CAIRO_BOILERPLATE_LOG ("Failed to connect to X server through XCB\n");
+	return NULL;
+    }
+
+    root = xcb_setup_roots_iterator(xcb_get_setup(c)).data;
+
+    xtc->pixmap = xcb_generate_id (c);
+    xcb_create_pixmap (c, 32, xtc->pixmap, root->root,
+			 width, height);
+
+    switch (content) {
+    case CAIRO_CONTENT_COLOR:
+	format = XCB_PICT_STANDARD_RGB_24;
+	break;
+    case CAIRO_CONTENT_COLOR_ALPHA:
+	format = XCB_PICT_STANDARD_ARGB_32;
+	break;
+    case CAIRO_CONTENT_ALPHA:  /* would be XCB_PICT_STANDARD_A_8 */
+    default:
+	CAIRO_BOILERPLATE_LOG ("Invalid content for XCB test: %d\n", content);
+	return NULL;
+    }
+
+    render_format = xcb_render_util_find_standard_format (xcb_render_util_query_formats (c), format);
+    if (render_format->id == 0)
+	return NULL;
+    surface = cairo_xcb_surface_create_with_xrender_format (c, xtc->pixmap, root,
+							    render_format,
+							    width, height);
+
+    return surface;
+}
+
+void
+_cairo_boilerplate_xcb_cleanup (void *closure)
+{
+    xcb_target_closure_t *xtc = closure;
+
+    xcb_free_pixmap (xtc->c, xtc->pixmap);
+    xcb_disconnect (xtc->c);
+    free (xtc);
+}