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Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-xcb-connection-core.c')
-rw-r--r--libs/cairo-1.16.0/src/cairo-xcb-connection-core.c300
1 files changed, 300 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-xcb-connection-core.c b/libs/cairo-1.16.0/src/cairo-xcb-connection-core.c
new file mode 100644
index 0000000..e01dc1a
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-xcb-connection-core.c
@@ -0,0 +1,300 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2009 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * Contributor(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-xcb-private.h"
+
+#include <xcb/xcbext.h>
+
+xcb_pixmap_t
+_cairo_xcb_connection_create_pixmap (cairo_xcb_connection_t *connection,
+ uint8_t depth,
+ xcb_drawable_t drawable,
+ uint16_t width,
+ uint16_t height)
+{
+ xcb_pixmap_t pixmap = _cairo_xcb_connection_get_xid (connection);
+
+ assert (width > 0);
+ assert (height > 0);
+ xcb_create_pixmap (connection->xcb_connection,
+ depth, pixmap, drawable,
+ width, height);
+ return pixmap;
+}
+
+void
+_cairo_xcb_connection_free_pixmap (cairo_xcb_connection_t *connection,
+ xcb_pixmap_t pixmap)
+{
+ xcb_free_pixmap (connection->xcb_connection, pixmap);
+ _cairo_xcb_connection_put_xid (connection, pixmap);
+}
+
+xcb_gcontext_t
+_cairo_xcb_connection_create_gc (cairo_xcb_connection_t *connection,
+ xcb_drawable_t drawable,
+ uint32_t value_mask,
+ uint32_t *values)
+{
+ xcb_gcontext_t gc = _cairo_xcb_connection_get_xid (connection);
+ xcb_create_gc (connection->xcb_connection, gc, drawable,
+ value_mask, values);
+ return gc;
+}
+
+void
+_cairo_xcb_connection_free_gc (cairo_xcb_connection_t *connection,
+ xcb_gcontext_t gc)
+{
+ xcb_free_gc (connection->xcb_connection, gc);
+ _cairo_xcb_connection_put_xid (connection, gc);
+}
+
+void
+_cairo_xcb_connection_change_gc (cairo_xcb_connection_t *connection,
+ xcb_gcontext_t gc,
+ uint32_t value_mask,
+ uint32_t *values)
+{
+ xcb_change_gc (connection->xcb_connection, gc,
+ value_mask, values);
+}
+
+void
+_cairo_xcb_connection_copy_area (cairo_xcb_connection_t *connection,
+ xcb_drawable_t src,
+ xcb_drawable_t dst,
+ xcb_gcontext_t gc,
+ int16_t src_x,
+ int16_t src_y,
+ int16_t dst_x,
+ int16_t dst_y,
+ uint16_t width,
+ uint16_t height)
+{
+ xcb_copy_area (connection->xcb_connection, src, dst, gc,
+ src_x, src_y, dst_x, dst_y, width, height);
+}
+
+void
+_cairo_xcb_connection_poly_fill_rectangle (cairo_xcb_connection_t *connection,
+ xcb_drawable_t dst,
+ xcb_gcontext_t gc,
+ uint32_t num_rectangles,
+ xcb_rectangle_t *rectangles)
+{
+ xcb_poly_fill_rectangle (connection->xcb_connection, dst, gc,
+ num_rectangles, rectangles);
+}
+
+void
+_cairo_xcb_connection_put_image (cairo_xcb_connection_t *connection,
+ xcb_drawable_t dst,
+ xcb_gcontext_t gc,
+ uint16_t width,
+ uint16_t height,
+ int16_t dst_x,
+ int16_t dst_y,
+ uint8_t depth,
+ uint32_t stride,
+ void *data)
+{
+ const uint32_t req_size = 18;
+ uint32_t length = height * stride;
+ uint32_t len = (req_size + length) >> 2;
+
+ if (len < connection->maximum_request_length) {
+ xcb_put_image (connection->xcb_connection, XCB_IMAGE_FORMAT_Z_PIXMAP,
+ dst, gc, width, height, dst_x, dst_y, 0, depth,
+ length, data);
+ } else {
+ int rows = (connection->maximum_request_length - req_size - 4) / stride;
+ if (rows > 0) {
+ do {
+ if (rows > height)
+ rows = height;
+
+ length = rows * stride;
+
+ xcb_put_image (connection->xcb_connection, XCB_IMAGE_FORMAT_Z_PIXMAP,
+ dst, gc, width, rows, dst_x, dst_y, 0, depth, length, data);
+
+ height -= rows;
+ dst_y += rows;
+ data = (char *) data + length;
+ } while (height);
+ } else {
+ ASSERT_NOT_REACHED;
+ }
+ }
+}
+
+static void
+_cairo_xcb_connection_do_put_subimage (cairo_xcb_connection_t *connection,
+ xcb_drawable_t dst,
+ xcb_gcontext_t gc,
+ int16_t src_x,
+ int16_t src_y,
+ uint16_t width,
+ uint16_t height,
+ uint16_t cpp,
+ int stride,
+ int16_t dst_x,
+ int16_t dst_y,
+ uint8_t depth,
+ void *_data)
+{
+ xcb_protocol_request_t xcb_req = {
+ 0 /* count */,
+ 0 /* ext */,
+ XCB_PUT_IMAGE /* opcode */,
+ 1 /* isvoid (doesn't cause a reply) */
+ };
+ xcb_put_image_request_t req;
+ struct iovec vec_stack[CAIRO_STACK_ARRAY_LENGTH (struct iovec)];
+ struct iovec *vec = vec_stack;
+ uint32_t len = 0;
+ uint8_t *data = _data;
+ int n = 3;
+ /* Two extra entries are needed for xcb, two for us */
+ int entries_needed = height + 2 + 2;
+
+ req.format = XCB_IMAGE_FORMAT_Z_PIXMAP;
+ req.drawable = dst;
+ req.gc = gc;
+ req.width = width;
+ req.height = height;
+ req.dst_x = dst_x;
+ req.dst_y = dst_y;
+ req.left_pad = 0;
+ req.depth = depth;
+ req.pad0[0] = 0;
+ req.pad0[1] = 0;
+
+ if (entries_needed > ARRAY_LENGTH (vec_stack)) {
+ vec = _cairo_malloc_ab (entries_needed, sizeof (struct iovec));
+ if (unlikely (vec == NULL)) {
+ /* XXX loop over ARRAY_LENGTH (vec_stack) */
+ return;
+ }
+ }
+
+ data += src_y * stride + src_x * cpp;
+ /* vec[1] will be used in XCB if it has to use BigRequests or insert a sync,
+ * vec[0] is used if the internal queue needs to be flushed. */
+ vec[2].iov_base = (char *) &req;
+ vec[2].iov_len = sizeof (req);
+
+ /* Now comes the actual data */
+ while (height--) {
+ vec[n].iov_base = data;
+ vec[n].iov_len = cpp * width;
+ len += cpp * width;
+ data += stride;
+ n++;
+ }
+
+ /* And again some padding */
+ vec[n].iov_base = 0;
+ vec[n].iov_len = -len & 3;
+ n++;
+
+ /* For efficiency reasons, this functions writes the request "directly" to
+ * the xcb connection to avoid having to copy the data around. */
+ assert (n == entries_needed);
+ xcb_req.count = n - 2;
+ xcb_send_request (connection->xcb_connection, 0, &vec[2], &xcb_req);
+
+ if (vec != vec_stack)
+ free (vec);
+}
+
+void
+_cairo_xcb_connection_put_subimage (cairo_xcb_connection_t *connection,
+ xcb_drawable_t dst,
+ xcb_gcontext_t gc,
+ int16_t src_x,
+ int16_t src_y,
+ uint16_t width,
+ uint16_t height,
+ uint16_t cpp,
+ int stride,
+ int16_t dst_x,
+ int16_t dst_y,
+ uint8_t depth,
+ void *_data)
+{
+ const uint32_t req_size = sizeof(xcb_put_image_request_t);
+ uint32_t length = height * cpp * width;
+ uint32_t len = (req_size + length) >> 2;
+
+ if (len < connection->maximum_request_length) {
+ _cairo_xcb_connection_do_put_subimage (connection, dst, gc, src_x, src_y,
+ width, height, cpp, stride, dst_x, dst_y, depth, _data);
+ } else {
+ int rows = (connection->maximum_request_length - req_size - 4) / (cpp * width);
+ if (rows > 0) {
+ do {
+ if (rows > height)
+ rows = height;
+
+ _cairo_xcb_connection_do_put_subimage (connection, dst, gc, src_x, src_y,
+ width, rows, cpp, stride, dst_x, dst_y, depth, _data);
+
+ height -= rows;
+ dst_y += rows;
+ _data = (char *) _data + stride * rows;
+ } while (height);
+ } else {
+ ASSERT_NOT_REACHED;
+ }
+ }
+}
+
+xcb_get_image_reply_t *
+_cairo_xcb_connection_get_image (cairo_xcb_connection_t *connection,
+ xcb_drawable_t src,
+ int16_t src_x,
+ int16_t src_y,
+ uint16_t width,
+ uint16_t height)
+{
+ return xcb_get_image_reply (connection->xcb_connection,
+ xcb_get_image (connection->xcb_connection,
+ XCB_IMAGE_FORMAT_Z_PIXMAP,
+ src,
+ src_x, src_y,
+ width, height,
+ (uint32_t) -1),
+ NULL);
+}
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