Add configure option to minimize xcb runtime dependencies

Some of the xcb- libraries we depend upon are not (yet) common across
distributions. This is problematic for binaries that should be working
on different distributions. The patch mitigates this by:

Adding the files from
  libxcb-proto (version 0.1.6), compiled with libxcb-1.5
  xcb-util (version 0.3.9)
  xcb-util-image (version 0.3.9)
  xcb-util-keysyms (version 0.3.9)
  xcb-util-renderutil (version 0.3.8)
  xcb-util-wm (version 0.3.9)

from xcb.freedesktop.org/dist to src/3rdparty/xcb.

Adding a configure option '-qt-xcb' to use the sources instead of
linking to the respective runtime libraries.

Task-number: QTBUG-27803
Change-Id: I6ea87daa382871b2b9072a601511523fa0b9f44b
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>

1 files changed, 171 insertions, 0 deletions

diff --git a/src/3rdparty/xcb/include/xcb/xcb_pixel.h b/src/3rdparty/xcb/include/xcb/xcb_pixel.h
new file mode 100644
index 0000000000..fcb22b4826
--- /dev/null
+++ b/src/3rdparty/xcb/include/xcb/xcb_pixel.h
@@ -0,0 +1,171 @@
+#ifndef __XCB_PIXEL_H__
+#define __XCB_PIXEL_H__
+
+/* Copyright (C) 2007 Bart Massey
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+#include <inttypes.h>
+#include <X11/Xfuncproto.h>
+#ifndef BUILD
+#include <xcb/xcb_bitops.h>
+#include <xcb/xcb_image.h>
+#endif
+
+/**
+ * XCB Image fast pixel ops.
+ *
+ * Fast inline versions of xcb_image_get_pixel() and
+ * xcb_image_put_pixel() for various common cases.
+ * The naming convention is xcb_image_put_pixel_FUB()
+ * where F is the format and is either XY for bitmaps
+ * or Z for pixmaps, U is the bitmap unit size or pixmap
+ * bits-per-pixel, and B is the endianness (if needed)
+ * and is either M for most-significant-first or L for
+ * least-significant-first.  Note that no checking
+ * is done on the arguments to these routines---caller beware.
+ * Also note that the pixel type is chosen to be appropriate
+ * to the unit; bitmaps use int and pixmaps use the appropriate
+ * size of unsigned.
+ * @ingroup xcb__image_t
+ */
+
+_X_INLINE static void
+xcb_image_put_pixel_XY32M (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y,
+			  int pixel)
+{
+  uint32_t   unit = (x >> 3) & ~xcb_mask(2);
+  uint32_t   byte = xcb_mask(2) - ((x >> 3) & xcb_mask(2));
+  uint32_t   bit = xcb_mask(3) - (x & xcb_mask(3));
+  uint8_t    m = 1 << bit;
+  uint8_t    p = pixel << bit;
+  uint8_t *  bp = image->data + (y * image->stride) + (unit | byte);
+  *bp = (*bp & ~m) | p;
+}
+
+_X_INLINE static void
+xcb_image_put_pixel_XY32L (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y,
+			  int pixel)
+{
+  uint32_t   bit = x & xcb_mask(3);
+  uint8_t    m = 1 << bit;
+  uint8_t    p = pixel << bit;
+  uint8_t *  bp = image->data + (y * image->stride) + (x >> 3);
+  *bp = (*bp & ~m) | p;
+}
+
+_X_INLINE static int
+xcb_image_get_pixel_XY32M (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y)
+{
+  uint32_t   unit = (x >> 3) & ~xcb_mask(2);
+  uint32_t   byte = xcb_mask(2) - ((x >> 3) & xcb_mask(2));
+  uint32_t   bit = xcb_mask(3) - (x & xcb_mask(3));
+  uint8_t *  bp = image->data + (y * image->stride) + (unit | byte);
+  return (*bp >> bit) & 1;
+}
+
+_X_INLINE static int
+xcb_image_get_pixel_XY32L (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y)
+{
+  uint32_t   bit = x & xcb_mask(3);
+  uint8_t *  bp = image->data + (y * image->stride) + (x >> 3);
+  return (*bp >> bit) & 1;
+}
+
+_X_INLINE static void
+xcb_image_put_pixel_Z8 (xcb_image_t *image,
+			uint32_t x,
+			uint32_t y,
+			uint8_t pixel)
+{
+  image->data[x + y * image->stride] = pixel;
+}
+
+_X_INLINE static uint8_t
+xcb_image_get_pixel_Z8 (xcb_image_t *image,
+			uint32_t x,
+			uint32_t y)
+{
+  return image->data[x + y * image->stride];
+}
+
+_X_INLINE static void
+xcb_image_put_pixel_Z32M (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y,
+			  uint32_t pixel)
+{
+  uint8_t *  row = image->data + (y * image->stride);
+  row[x << 2] = pixel >> 24;
+  row[(x << 2) + 1] = pixel >> 16;
+  row[(x << 2) + 2] = pixel >> 8;
+  row[(x << 2) + 3] = pixel;
+}
+
+_X_INLINE static void
+xcb_image_put_pixel_Z32L (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y,
+			  uint32_t pixel)
+{
+  uint8_t *  row = image->data + (y * image->stride);
+  row[x << 2] = pixel;
+  row[(x << 2) + 1] = pixel >> 8;
+  row[(x << 2) + 2] = pixel >> 16;
+  row[(x << 2) + 3] = pixel >> 24;
+}
+
+_X_INLINE static uint32_t
+xcb_image_get_pixel_Z32M (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y)
+{
+  uint8_t *  row = image->data + (y * image->stride);
+  uint32_t    pixel = row[x << 2] << 24;
+  pixel |= row[(x << 2) + 1] << 16;
+  pixel |= row[(x << 2) + 2] << 8;
+  return pixel | row[(x << 2) + 3];
+}
+
+_X_INLINE static uint32_t
+xcb_image_get_pixel_Z32L (xcb_image_t *image,
+			  uint32_t x,
+			  uint32_t y)
+{
+  uint8_t *  row = image->data + (y * image->stride);
+  uint32_t    pixel = row[x << 2];
+  pixel |= row[(x << 2) + 1] << 8;
+  pixel |= row[(x << 2) + 2] << 16;
+  return pixel | row[(x << 2) + 3] << 24;
+}
+
+#endif /* __XCB_PIXEL_H__ */