/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */

/*

 * Copyright © 2006 Keith Packard

 * Copyright © 2007 Adrian Johnson

 *

 * 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 Keith Packard

 *

 * Contributor(s):

 *      Keith Packard <keithp@keithp.com>

 *      Adrian Johnson <ajohnson@redneon.com>

 */

#include "cairoint.h"

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

#include "cairo-box-inline.h"

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

#include "cairo-error-private.h"

#include "cairo-paginated-private.h"

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

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

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

#include "cairo-region-private.h"

typedef struct {

    cairo_surface_t base;

    cairo_surface_t *target;

    cairo_bool_t first_op;

    cairo_bool_t has_supported;

    cairo_bool_t has_unsupported;

    cairo_region_t supported_region;

    cairo_region_t fallback_region;

    cairo_box_t page_bbox;

    cairo_bool_t create_region_ids;

    unsigned source_region_id;

    unsigned mask_region_id;

    cairo_bool_t has_ctm;

    cairo_matrix_t ctm;

} cairo_analysis_surface_t;

cairo_int_status_t

				      cairo_int_status_t status_b)

{

    /* fatal errors should be checked and propagated at source */

    /* return the most important status */

	status_b == CAIRO_INT_STATUS_UNSUPPORTED)

	status_b == CAIRO_INT_STATUS_IMAGE_FALLBACK)

	status_b == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN)

	status_b == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY)

    /* at this point we have checked all the valid internal codes, so... */

	    status_b == CAIRO_INT_STATUS_SUCCESS);

}

struct proxy {

    cairo_surface_t base;

    cairo_surface_t *target;

};

static cairo_status_t

{

}

static const cairo_surface_backend_t proxy_backend  = {

    CAIRO_INTERNAL_SURFACE_TYPE_NULL,

    proxy_finish,

};

static cairo_surface_t *

	      cairo_surface_t *target)

{

    struct proxy *proxy;

}

static void

{

static cairo_int_status_t

		cairo_rectangle_int_t    *rect,

		cairo_int_status_t        backend_status)

{

    cairo_int_status_t status;

    cairo_box_t bbox;

	/* Even though the operation is not visible we must be careful

	 * to not allow unsupported operations to be replayed to the

	 * backend during CAIRO_PAGINATED_MODE_RENDER */

	    backend_status == CAIRO_INT_STATUS_NOTHING_TO_DO)

	{

	}

	else

	{

	}

    }

	int tx, ty;

	} else {

							&bbox, NULL);

		/* Even though the operation is not visible we must be

		 * careful to not allow unsupported operations to be

		 * replayed to the backend during

		 * CAIRO_PAGINATED_MODE_RENDER */

		    backend_status == CAIRO_INT_STATUS_NOTHING_TO_DO)

		{

		}

		else

		{

		}

	    }

	}

    }

    } else

    /* If the operation is completely enclosed within the fallback

     * region there is no benefit in emitting a native operation as

     * the fallback image will be painted on top.

     */

	/* A status of CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY indicates

	 * that the backend only supports this operation if the

	 * transparency removed. If the extents of this operation does

	 * not intersect any other native operation, the operation is

	 * natively supported and the backend will blend the

	 * transparency into the white background.

	 */

    }

	/* Add the operation to the supported region. Operations in

	 * this region will be emitted as native operations.

	 */

    }

    /* Add the operation to the unsupported region. This region will

     * be painted as an image after all native operations have been

     * emitted.

     */

    /* The status CAIRO_INT_STATUS_IMAGE_FALLBACK is used to indicate

     * unsupported operations to the recording surface as using

     * CAIRO_INT_STATUS_UNSUPPORTED would cause cairo-surface to

     * invoke the cairo-surface-fallback path then return

     * CAIRO_STATUS_SUCCESS.

     */

    else

}

static cairo_int_status_t

				    const cairo_pattern_t    *pattern,

				    cairo_rectangle_int_t    *extents,

				    unsigned int             *regions_id,

				    cairo_analysis_source_t   source_type)

{

    const cairo_surface_pattern_t *surface_pattern;

    cairo_analysis_surface_t *tmp;

    cairo_surface_t *source, *proxy;

    cairo_matrix_t p2d;

    cairo_int_status_t status;

    cairo_bool_t surface_is_unbounded;

    cairo_bool_t unused;

    cairo_bool_t replay_all;

	/* nothing untoward found so far */

    }

    tmp = (cairo_analysis_surface_t *)

    }

    }

	    surface_pattern,

	    source_type,

	    TRUE);

	    /* Ensure all commands are replayed even if previously

	     * replayed and assigned to a region.*/

        }

    }

								     *regions_id,

								     &pattern->matrix,

								     &tmp->base,

								     surface_is_unbounded,

								     replay_all);

    } else {

								 &pattern->matrix,

								 &tmp->base,

								 surface_is_unbounded,

								 replay_all);

    }

	    surface_pattern,

	    source_type,

	    FALSE);

    }

    /* black background or mime data fills entire extents */

	cairo_rectangle_int_t rect;

	    cairo_box_t bbox;

	}

    }

    }

    }

    } else {

						    &tmp->page_bbox, NULL);

    }

    }

    else

}

static cairo_status_t

{

}

static cairo_bool_t

				     cairo_rectangle_int_t	*rectangle)

{

}

static void

{

static void

					   cairo_operator_t op,

					   const cairo_pattern_t *source,

					   const cairo_clip_t *clip,

					   cairo_rectangle_int_t *extents)

{

    cairo_bool_t is_empty;

	cairo_rectangle_int_t source_extents;

    }

static cairo_int_status_t

			       cairo_operator_t		op,

			       const cairo_pattern_t	*source,

			       const cairo_clip_t	*clip)

{

    cairo_int_status_t	     backend_status;

    cairo_rectangle_int_t  extents;

    } else {

	backend_status =

					     op, source, clip);

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

							     source,

							     &rec_extents,

							     &surface->source_region_id,

							     CAIRO_ANALYSIS_SOURCE_PAINT);

    }

}

static cairo_int_status_t

			      cairo_operator_t		 op,

			      const cairo_pattern_t	*source,

			      const cairo_pattern_t	*mask,

			      const cairo_clip_t	*clip)

{

    cairo_int_status_t	      backend_status;

    cairo_rectangle_int_t   extents;

    } else {

	backend_status =

					    op, source, mask, clip);

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

		backend_source_status =

							source,

							&rec_extents,

							&surface->source_region_id,

							CAIRO_ANALYSIS_SOURCE_MASK);

	    }

	}

		backend_mask_status =

							mask,

							&rec_extents,

							&surface->mask_region_id,

							CAIRO_ANALYSIS_MASK_MASK);

	    }

	}

	backend_status =

						  backend_mask_status);

    }

	cairo_rectangle_int_t mask_extents;

    }

}

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)

{

    cairo_int_status_t	     backend_status;

    cairo_rectangle_int_t    extents;

    } else {

	backend_status =

					      source, path, style,

					      ctm, ctm_inverse,

					      tolerance, antialias,

					      clip);

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

							     source,

							     &rec_extents,

							     &surface->source_region_id,

							     CAIRO_ANALYSIS_SOURCE_STROKE);

    }

	cairo_rectangle_int_t mask_extents;

	cairo_int_status_t status;

						   ctm, ctm_inverse,

						   tolerance,

						   &mask_extents);

    }

}

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)

{

    cairo_int_status_t	     backend_status;

    cairo_rectangle_int_t    extents;

    } else {

	backend_status =

					    source, path, fill_rule,

					    tolerance, antialias,

					    clip);

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

							     source,

							     &rec_extents,

							     &surface->source_region_id,

							     CAIRO_ANALYSIS_SOURCE_FILL);

    }

	cairo_rectangle_int_t mask_extents;

					&mask_extents);

    }

}

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)

{

    cairo_int_status_t	     status, backend_status;

    cairo_rectangle_int_t    extents, glyph_extents;

    /* Adapted from _cairo_surface_show_glyphs */

	backend_status =

						   source,

						   glyphs, num_glyphs,

						   scaled_font,

						   clip);

    }

    {

	backend_status =

							source,

							NULL, 0,

							glyphs, num_glyphs,

							NULL, 0,

							FALSE,

							scaled_font,

							clip);

    }

    else

    {

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

							     source,

							     &rec_extents,

							     &surface->source_region_id,

							     CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS);

    }

							  glyphs,

							  num_glyphs,

							  &glyph_extents,

							  NULL);

    }

}

static cairo_bool_t

{

}

static cairo_int_status_t

					  cairo_operator_t	     op,

					  const cairo_pattern_t	    *source,

					  const char		    *utf8,

					  int			     utf8_len,

					  cairo_glyph_t		    *glyphs,

					  int			     num_glyphs,

					  const cairo_text_cluster_t *clusters,

					  int			     num_clusters,

					  cairo_text_cluster_flags_t cluster_flags,

					  cairo_scaled_font_t	    *scaled_font,

					  const cairo_clip_t		    *clip)

{

    cairo_int_status_t	     status, backend_status;

    cairo_rectangle_int_t    extents, glyph_extents;

    /* Adapted from _cairo_surface_show_glyphs */

	backend_status =

							source,

							utf8, utf8_len,

							glyphs, num_glyphs,

							clusters, num_clusters,

							cluster_flags,

							scaled_font,

							clip);

    }

    {

	backend_status =

						   source,

						   glyphs, num_glyphs,

						   scaled_font,

						   clip);

    }

					       op, source, clip,

					       &extents);

	cairo_rectangle_int_t rec_extents;

					    source,

					    &rec_extents,

					    &surface->source_region_id,

					    CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS);

    }

							  glyphs,

							  num_glyphs,

							  &glyph_extents,

							  NULL);

    }

}

static cairo_int_status_t

			     cairo_bool_t                begin,

			     const char                 *tag_name,

			     const char                 *attributes)

{

    cairo_int_status_t	     backend_status;

	backend_status =

					   begin,

					   tag_name,

					   attributes);

    }

}

static cairo_bool_t

                                              cairo_scaled_font_t  *scaled_font,

                                              unsigned long         glyph_index)

{

}

static cairo_int_status_t

				    unsigned int          recording_id,

				    unsigned int          command_id)

{

    cairo_int_status_t backend_status;

	backend_status =

						  recording_id,

						  command_id);

    }

}

static const cairo_surface_backend_t cairo_analysis_surface_backend = {

    CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS,

    _cairo_analysis_surface_finish,

    NULL,

    NULL, /* create_similar */

    NULL, /* create_similar_image */

    NULL, /* map_to_image */

    NULL, /* unmap */

    NULL, /* source */

    NULL, /* acquire_source_image */

    NULL, /* release_source_image */

    NULL, /* snapshot */

    NULL, /* copy_page */

    NULL, /* show_page */

    _cairo_analysis_surface_get_extents,

    NULL, /* get_font_options */

    NULL, /* flush */

    NULL, /* mark_dirty_rectangle */

    _cairo_analysis_surface_paint,

    _cairo_analysis_surface_mask,

    _cairo_analysis_surface_stroke,

    _cairo_analysis_surface_fill,

    NULL, /* fill_stroke */

    _cairo_analysis_surface_show_glyphs,

    _cairo_analysis_surface_has_show_text_glyphs,

    _cairo_analysis_surface_show_text_glyphs,

    NULL, /* get_supported_mime_types */

    _cairo_analysis_surface_tag,

    _cairo_analysis_surface_supports_color_glyph,

    NULL, /* analyze_recording_surface */

    _cairo_analysis_surface_command_id,

};

cairo_surface_t *

				cairo_bool_t             create_region_ids)

{

    cairo_analysis_surface_t *surface;

    cairo_status_t status;

    /* I believe the content type here is truly arbitrary. I'm quite

     * sure nothing will ever use this value. */

			 &cairo_analysis_surface_backend,

			 NULL, /* device */

			 CAIRO_CONTENT_COLOR_ALPHA,

}

void

				 const cairo_matrix_t  *ctm)

{

    cairo_analysis_surface_t	*surface;

}

void

				 cairo_matrix_t  *ctm)

{

cairo_region_t *

{

}

cairo_region_t *

{

}

cairo_bool_t

{

}

cairo_bool_t

{

}

void

					  cairo_box_t     *bbox)

{

unsigned int

{

}

unsigned int

{

}

/* null surface type: a surface that does nothing (has no side effects, yay!) */

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)

{

    }

}

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)

{

    }

}

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)

{

    }

}

static const cairo_surface_backend_t cairo_null_surface_backend = {

    CAIRO_INTERNAL_SURFACE_TYPE_NULL,

    NULL, /* finish */

    NULL, /* only accessed through the surface functions */

    NULL, /* create_similar */

    NULL, /* create similar image */

    NULL, /* map to image */

    NULL, /* unmap image*/

    NULL, /* source */

    NULL, /* acquire_source_image */

    NULL, /* release_source_image */

    NULL, /* snapshot */

    NULL, /* copy_page */

    NULL, /* show_page */

    NULL, /* get_extents */

    NULL, /* get_font_options */

    NULL, /* flush */

    NULL, /* mark_dirty_rectangle */

    _paint_return_success,	    /* paint */

    _mask_return_success,	    /* mask */

    _stroke_return_success,	    /* stroke */

    _fill_return_success,	    /* fill */

    NULL, /* fill_stroke */

    _show_glyphs_return_success,    /* show_glyphs */

    NULL, /* has_show_text_glyphs */

    NULL, /* show_text_glyphs */

    NULL, /* get_supported_mime_types */

    NULL, /* tag */

    NULL, /* supports_color_glyph */

    NULL, /* analyze_recording_surface */

    NULL, /* command_id*/

};

cairo_surface_t *

{

    cairo_surface_t *surface;

    }

			 &cairo_null_surface_backend,

			 NULL, /* device */

			 content,

			 TRUE); /* is_vector */

}