/* cairo - a vector graphics library with display and print output

 *

 * Copyright © 2002 University of Southern California

 * 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.

 *

 * The Original Code is the cairo graphics library.

 *

 * The Initial Developer of the Original Code is University of Southern

 * California.

 *

 * Contributor(s):

 *	Behdad Esfahbod <behdad@behdad.org>

 *	Carl D. Worth <cworth@cworth.org>

 *	Chris Wilson <chris@chris-wilson.co.uk>

 *	Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation

 */

#include "cairoint.h"

#include "cairo-xcb.h"

#include "cairo-xcb-private.h"

#include "cairo-composite-rectangles-private.h"

#include "cairo-default-context-private.h"

#include "cairo-image-surface-inline.h"

#include "cairo-list-inline.h"

#include "cairo-surface-backend-private.h"

#include "cairo-compositor-private.h"

/**

 * SECTION:cairo-xcb

 * @Title: XCB Surfaces

 * @Short_Description: X Window System rendering using the XCB library

 * @See_Also: #cairo_surface_t

 *

 * The XCB surface is used to render cairo graphics to X Window System

 * windows and pixmaps using the XCB library.

 *

 * Note that the XCB surface automatically takes advantage of the X render

 * extension if it is available.

 **/

/**

 * CAIRO_HAS_XCB_SURFACE:

 *

 * Defined if the xcb surface backend is available.

 * This macro can be used to conditionally compile backend-specific code.

 *

 * Since: 1.12

 **/

cairo_surface_t *

				   cairo_content_t	 content,

				   int			 width,

				   int			 height)

{

    cairo_xcb_surface_t *surface;

    cairo_xcb_connection_t *connection;

    xcb_pixmap_t pixmap;

    cairo_status_t status;

		 height > XLIB_COORD_MAX ||

		 width  <= 0 ||

		 height <= 0))

					   width, height);

							_cairo_format_from_content (content),

							width, height);

						      other->drawable,

						      width, height);

	surface = (cairo_xcb_surface_t *)

						pixmap, TRUE,

						other->pixman_format,

						other->xrender_format,

						width, height);

    } else {

	cairo_format_t format;

	pixman_format_code_t pixman_format;

	/* XXX find a compatible xrender format */

	case CAIRO_CONTENT_COLOR_ALPHA:

	}

						      other->drawable,

						      width, height);

	surface = (cairo_xcb_surface_t *)

						pixmap, TRUE,

						pixman_format,

						connection->standard_formats[format],

						width, height);

    }

}

cairo_surface_t *

					 cairo_format_t		 format,

					 int			 width,

					 int			 height)

{

    cairo_xcb_shm_info_t *shm_info;

    cairo_image_surface_t *image;

    cairo_status_t status;

    pixman_format_code_t pixman_format;

		 height > XLIB_COORD_MAX ||

		 width  <= 0 ||

		 height <= 0))

					  width, height, &image,

					  &shm_info);

    }

}

static cairo_status_t

{

    cairo_status_t status;

    }

						       surface->picture);

	}

    }

}

static void

{

#if CAIRO_HAS_XCB_SHM_FUNCTIONS

static cairo_surface_t *

				     pixman_format_code_t pixman_format,

				     int width, int height,

				     cairo_bool_t might_reuse,

				     cairo_xcb_shm_info_t **shm_info_out)

{

    cairo_surface_t *image;

    cairo_xcb_shm_info_t *shm_info;

    cairo_int_status_t status;

    size_t stride;

					 PIXMAN_FORMAT_BPP (pixman_format));

						      stride * height,

						      might_reuse,

						      &shm_info);

    }

							    pixman_format,

							    width, height,

							    stride);

    }

					      (const cairo_user_data_key_t *) connection,

					      shm_info,

					      (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy);

    }

}

#endif

static cairo_surface_t *

		int x, int y,

		int width, int height)

{

#if CAIRO_HAS_XCB_SHM_FUNCTIONS

    cairo_xcb_shm_info_t *shm_info;

    cairo_surface_t *image;

    cairo_status_t status;

						 surface->pixman_format,

						 width, height,

						 TRUE,

						 &shm_info);

						  surface->drawable,

						  x, y,

						  width, height,

    }

#else

    return NULL;

#endif

}

static cairo_surface_t *

	    cairo_bool_t		  use_shm,

	    int x, int y,

	    int width, int height)

{

    cairo_surface_t *image;

    cairo_xcb_connection_t *connection;

    xcb_get_image_reply_t *reply;

    cairo_int_status_t status;

	image =

							    surface->pixman_format,

							    width, height,

							    0);

	    cairo_solid_pattern_t solid;

					   CAIRO_OPERATOR_SOURCE,

					   &solid.base,

					   NULL);

	    }

	}

    }

	    }

	}

    }

					    surface->drawable,

					    x, y,

					    width, height);

	/* xcb_get_image_t from a window is dangerous because it can

	 * produce errors if the window is unmapped or partially

	 * outside the screen. We could check for errors and

	 * retry, but to keep things simple, we just create a

	 * temporary pixmap

	 *

	 * If we hit this fallback too often, we should remember so and

	 * skip the round-trip from the above GetImage request,

	 * similar to what cairo-xlib does.

	 */

	xcb_pixmap_t pixmap;

	xcb_gcontext_t gc;

				       surface->drawable,

				       surface->depth);

						      surface->drawable,

						      width, height);

	/* XXX IncludeInferiors? */

					 surface->drawable,

					 pixmap, gc,

					 x, y,

					 0, 0,

					 width, height);

						 pixmap,

						 0, 0,

						 width, height);

    }

    }

    /* XXX byte swap */

    /* XXX format conversion */

	 surface->pixman_format,

	 width, height,

				     PIXMAN_FORMAT_BPP (surface->pixman_format)));

    }

    /* XXX */

}

static cairo_surface_t *

			   cairo_rectangle_int_t *extents)

{

    }

}

static cairo_status_t

					 cairo_image_surface_t **image_out,

					 void **image_extra)

{

    cairo_surface_t *image;

    }

					 &_cairo_image_surface_backend);

    }

}

static void

					 cairo_image_surface_t *image,

					 void *image_extra)

{

cairo_bool_t

				cairo_rectangle_int_t *extents)

{

}

static void

				     cairo_font_options_t *options)

{

static cairo_status_t

		xcb_gcontext_t		gc,

		cairo_image_surface_t  *image)

{

#if CAIRO_HAS_XCB_SHM_FUNCTIONS

    cairo_xcb_shm_info_t *shm_info;

					 surface->drawable,

					 gc,

					 0, 0,

					 shm_info->shm,

					 shm_info->offset);

#else

    return CAIRO_INT_STATUS_UNSUPPORTED;

#endif

}

static cairo_status_t

	    cairo_image_surface_t  *image)

{

    /* XXX track damaged region? */

	xcb_gcontext_t gc;

				       surface->drawable,

				       surface->depth);

					     surface->drawable, gc,

	}

    } else {

    }

}

static cairo_int_status_t

		      cairo_image_surface_t  *image,

		      xcb_gcontext_t gc,

		      cairo_boxes_t *boxes)

{

#if CAIRO_HAS_XCB_SHM_FUNCTIONS

    cairo_xcb_shm_info_t *shm_info;

	struct _cairo_boxes_chunk *chunk;

	    int i;

						     surface->drawable,

						     gc,

						     x, y,

						     width, height,

						     x, y,

						     shm_info->shm,

						     shm_info->offset);

	    }

	}

    }

#endif

}

static cairo_status_t

		  cairo_image_surface_t  *image,

		  cairo_boxes_t *boxes)

{

    xcb_gcontext_t gc;

    /* XXX track damaged region? */

				   surface->drawable,

				   surface->depth);

	    struct _cairo_boxes_chunk *chunk;

		    int i;

								surface->drawable, gc,

								x, y,

								width, height,

								x, y,

		    }

	    }

    }

}

static cairo_status_t

			  unsigned flags)

{

    cairo_status_t status;

    }

								  CAIRO_FILL_RULE_WINDING,

								  &surface->fallback_damage);

				       surface->fallback,

				       &surface->fallback_damage);

					    cairo_surface_finish);

	}

    }

}

static cairo_image_surface_t *

				 const cairo_rectangle_int_t *extents)

{

    cairo_surface_t *image;

    cairo_status_t status;

    }

    /* Do we have a deferred clear and this image surface does NOT cover the

     * whole xcb surface? Have to apply the clear in that case, else

     * uploading the image will handle the problem for us.

     */

	}

    }

}

static cairo_int_status_t

			  cairo_image_surface_t *image)

{

    cairo_int_status_t status;

}

static cairo_surface_t *

			     cairo_composite_rectangles_t *composite)

{

    cairo_image_surface_t *image;

    cairo_status_t status;

							&surface->fallback_damage);

    image = (cairo_image_surface_t *)

    /* If there was a deferred clear, _get_image applied it */

}

static cairo_int_status_t

				      cairo_composite_rectangles_t *extents)

{

}

static cairo_int_status_t

				     cairo_composite_rectangles_t *extents)

{

}

static cairo_int_status_t

				       cairo_composite_rectangles_t *extents,

				       const cairo_path_fixed_t     *path,

				       const cairo_stroke_style_t   *style,

				       const cairo_matrix_t         *ctm,

				       const cairo_matrix_t         *ctm_inverse,

				       double                        tolerance,

				       cairo_antialias_t             antialias)

{

				  path, style, ctm, ctm_inverse,

				  tolerance, antialias,

}

static cairo_int_status_t

				     cairo_composite_rectangles_t *extents,

				     const cairo_path_fixed_t     *path,

				     cairo_fill_rule_t             fill_rule,

				     double                        tolerance,

				     cairo_antialias_t             antialias)

{

				path, fill_rule, tolerance,

}

static cairo_int_status_t

				       cairo_composite_rectangles_t *extents,

				       cairo_scaled_font_t          *scaled_font,

				       cairo_glyph_t                *glyphs,

				       int                           num_glyphs,

				       cairo_bool_t                  overlap)

{

					    NULL, 0, glyphs, num_glyphs,

					    NULL, 0, 0,

}

static const cairo_compositor_t _cairo_xcb_fallback_compositor = {

    &__cairo_no_compositor,

    _cairo_xcb_fallback_compositor_paint,

    _cairo_xcb_fallback_compositor_mask,

    _cairo_xcb_fallback_compositor_stroke,

    _cairo_xcb_fallback_compositor_fill,

    _cairo_xcb_fallback_compositor_glyphs,

};

static const cairo_compositor_t _cairo_xcb_render_compositor = {

    &_cairo_xcb_fallback_compositor,

    _cairo_xcb_render_compositor_paint,

    _cairo_xcb_render_compositor_mask,

    _cairo_xcb_render_compositor_stroke,

    _cairo_xcb_render_compositor_fill,

    _cairo_xcb_render_compositor_glyphs,

};

static inline const cairo_compositor_t *

{

    }

}

static cairo_int_status_t

			  cairo_operator_t	 op,

			  const cairo_pattern_t	*source,

			  const cairo_clip_t	*clip)

{

}

static cairo_int_status_t

			 cairo_operator_t	 op,

			 const cairo_pattern_t	*source,

			 const cairo_pattern_t	*mask,

			 const cairo_clip_t	*clip)

{

}

static cairo_int_status_t

			   cairo_operator_t		 op,

			   const cairo_pattern_t	*source,

			   const cairo_path_fixed_t	*path,

			   const cairo_stroke_style_t	*style,

			   const cairo_matrix_t		*ctm,

			   const cairo_matrix_t		*ctm_inverse,

			   double			 tolerance,

			   cairo_antialias_t		 antialias,

			   const cairo_clip_t		*clip)

{

				     path, style, ctm, ctm_inverse,

				     tolerance, antialias, clip);

}

static cairo_int_status_t

			 cairo_operator_t	 op,

			 const cairo_pattern_t	*source,

			 const cairo_path_fixed_t*path,

			 cairo_fill_rule_t	 fill_rule,

			 double			 tolerance,

			 cairo_antialias_t	 antialias,

			 const cairo_clip_t	*clip)

{

				   source, path, fill_rule,

				   tolerance, antialias, clip);

}

static cairo_int_status_t

			   cairo_operator_t		 op,

			   const cairo_pattern_t	*source,

			   cairo_glyph_t		*glyphs,

			   int				 num_glyphs,

			   cairo_scaled_font_t		*scaled_font,

			   const cairo_clip_t		*clip)

{

				     source, glyphs, num_glyphs,

				     scaled_font, clip);

}

const cairo_surface_backend_t _cairo_xcb_surface_backend = {

    CAIRO_SURFACE_TYPE_XCB,

    _cairo_xcb_surface_finish,

    _cairo_default_context_create,

    _cairo_xcb_surface_create_similar,

    _cairo_xcb_surface_create_similar_image,

    _cairo_xcb_surface_map_to_image,

    _cairo_xcb_surface_unmap,

    _cairo_xcb_surface_source,

    _cairo_xcb_surface_acquire_source_image,

    _cairo_xcb_surface_release_source_image,

    NULL, /* snapshot */

    NULL, /* copy_page */

    NULL, /* show_page */

    _cairo_xcb_surface_get_extents,

    _cairo_xcb_surface_get_font_options,

    _cairo_xcb_surface_flush,

    NULL,

    _cairo_xcb_surface_paint,

    _cairo_xcb_surface_mask,

    _cairo_xcb_surface_stroke,

    _cairo_xcb_surface_fill,

    NULL, /* fill-stroke */

    _cairo_xcb_surface_glyphs,

};

cairo_surface_t *

				    xcb_drawable_t		 drawable,

				    cairo_bool_t		 owns_pixmap,

				    pixman_format_code_t	 pixman_format,

				    xcb_render_pictformat_t	 xrender_format,

				    int				 width,

				    int				 height)

{

    cairo_xcb_surface_t *surface;

			 &_cairo_xcb_surface_backend,

			 _cairo_content_from_pixman_format (pixman_format),

			 FALSE); /* is_vector */

    else

}

static xcb_screen_t *

			       xcb_visualtype_t *visual,

			       int *depth)

{

    xcb_depth_iterator_t d;

    xcb_screen_iterator_t s;

	}

		}

	    }

	}

    }

}

/**

 * cairo_xcb_surface_create:

 * @connection: an XCB connection

 * @drawable: an XCB drawable

 * @visual: the visual to use for drawing to @drawable. The depth

 *          of the visual must match the depth of the drawable.

 *          Currently, only TrueColor visuals are fully supported.

 * @width: the current width of @drawable

 * @height: the current height of @drawable

 *

 * Creates an XCB surface that draws to the given drawable.

 * The way that colors are represented in the drawable is specified

 * by the provided visual.

 *

 * Note: If @drawable is a Window, then the function

 * cairo_xcb_surface_set_size() must be called whenever the size of the

 * window changes.

 *

 * When @drawable is a Window containing child windows then drawing to

 * the created surface will be clipped by those child windows.  When

 * the created surface is used as a source, the contents of the

 * children will be included.

 *

 * Return value: a pointer to the newly created surface. The caller

 * owns the surface and should call cairo_surface_destroy() when done

 * with it.

 *

 * This function always returns a valid pointer, but it will return a

 * pointer to a "nil" surface if an error such as out of memory

 * occurs. You can use cairo_surface_status() to check for this.

 *

 * Since: 1.12

 **/

cairo_surface_t *

			  xcb_drawable_t     drawable,

			  xcb_visualtype_t  *visual,

			  int		     width,

			  int		     height)

{

    cairo_xcb_screen_t *screen;

    xcb_screen_t *xcb_screen;

    cairo_format_masks_t image_masks;

    pixman_format_code_t pixman_format;

    xcb_render_pictformat_t xrender_format;

    int depth;

    else

    xrender_format =

							     visual->visual_id);

					       pixman_format,

					       xrender_format,

					       width, height);

}

/**

 * cairo_xcb_surface_create_for_bitmap:

 * @connection: an XCB connection

 * @screen: the XCB screen associated with @bitmap

 * @bitmap: an XCB drawable (a Pixmap with depth 1)

 * @width: the current width of @bitmap

 * @height: the current height of @bitmap

 *

 * Creates an XCB surface that draws to the given bitmap.

 * This will be drawn to as a %CAIRO_FORMAT_A1 object.

 *

 * Return value: a pointer to the newly created surface. The caller

 * owns the surface and should call cairo_surface_destroy() when done

 * with it.

 *

 * This function always returns a valid pointer, but it will return a

 * pointer to a "nil" surface if an error such as out of memory

 * occurs. You can use cairo_surface_status() to check for this.

 *

 * Since: 1.12

 **/

cairo_surface_t *

				     xcb_screen_t	*screen,

				     xcb_pixmap_t	 bitmap,

				     int		 width,

				     int		 height)

{

    cairo_xcb_screen_t *cairo_xcb_screen;

					       PIXMAN_a1,

					       width, height);

}

/**

 * cairo_xcb_surface_create_with_xrender_format:

 * @connection: an XCB connection

 * @drawable: an XCB drawable

 * @screen: the XCB screen associated with @drawable

 * @format: the picture format to use for drawing to @drawable. The

 *          depth of @format mush match the depth of the drawable.

 * @width: the current width of @drawable

 * @height: the current height of @drawable

 *

 * Creates an XCB surface that draws to the given drawable.

 * The way that colors are represented in the drawable is specified

 * by the provided picture format.

 *

 * Note: If @drawable is a Window, then the function

 * cairo_xcb_surface_set_size() must be called whenever the size of the

 * window changes.

 *

 * When @drawable is a Window containing child windows then drawing to

 * the created surface will be clipped by those child windows.  When

 * the created surface is used as a source, the contents of the

 * children will be included.

 *

 * Return value: a pointer to the newly created surface. The caller

 * owns the surface and should call cairo_surface_destroy() when done

 * with it.

 *

 * This function always returns a valid pointer, but it will return a

 * pointer to a "nil" surface if an error such as out of memory

 * occurs. You can use cairo_surface_status() to check for this.

 *

 * Since: 1.12

 **/

cairo_surface_t *

					      xcb_screen_t	    *screen,

					      xcb_drawable_t	     drawable,

					      xcb_render_pictforminfo_t *format,

					      int		     width,

					      int		     height)

{

    cairo_xcb_screen_t *cairo_xcb_screen;

    cairo_format_masks_t image_masks;

    pixman_format_code_t pixman_format;