src/cairo-spans-compositor-private.h

   1 /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
   2 /* cairo - a vector graphics library with display and print output
   3  *
   4  * Copyright © 2011 Intel Corporation
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it either under the terms of the GNU Lesser General Public
   8  * License version 2.1 as published by the Free Software Foundation
   9  * (the "LGPL") or, at your option, under the terms of the Mozilla
  10  * Public License Version 1.1 (the "MPL"). If you do not alter this
  11  * notice, a recipient may use your version of this file under either
  12  * the MPL or the LGPL.
  13  *
  14  * You should have received a copy of the LGPL along with this library
  15  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
  17  * You should have received a copy of the MPL along with this library
  18  * in the file COPYING-MPL-1.1
  19  *
  20  * The contents of this file are subject to the Mozilla Public License
  21  * Version 1.1 (the "License"); you may not use this file except in
  22  * compliance with the License. You may obtain a copy of the License at
  23  * http://www.mozilla.org/MPL/
  24  *
  25  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  26  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  27  * the specific language governing rights and limitations.
  28  *
  29  * The Original Code is the cairo graphics library.
  30  *
  31  * The Initial Developer of the Original Code is University of Southern
  32  * California.
  33  *
  34  * Contributor(s):
  35  *      Chris Wilson <chris@chris-wilson.co.uk>
  36  */
  37
  38 #ifndef CAIRO_SPANS_COMPOSITOR_PRIVATE_H
  39 #define CAIRO_SPANS_COMPOSITOR_PRIVATE_H
  40
  41 #include "cairo-compositor-private.h"
  42 #include "cairo-types-private.h"
  43 #include "cairo-spans-private.h"
  44
  45 CAIRO_BEGIN_DECLS
  46
  47 typedef struct _cairo_abstract_span_renderer {
  48     cairo_span_renderer_t base;
  49     char data[2048];
  50 } cairo_abstract_span_renderer_t;
  51
  52 struct cairo_spans_compositor {
  53     cairo_compositor_t base;
  54
  55     unsigned int flags;
  56 #define CAIRO_SPANS_COMPOSITOR_HAS_LERP 0x1
  57
  58     /* pixel-aligned fast paths */
  59     cairo_int_status_t (*fill_boxes)    (void                   *surface,
  60                                          cairo_operator_t        op,
  61                                          const cairo_color_t    *color,
  62                                          cairo_boxes_t          *boxes);
  63
  64     cairo_int_status_t (*draw_image_boxes) (void *surface,
  65                                             cairo_image_surface_t *image,
  66                                             cairo_boxes_t *boxes,
  67                                             int dx, int dy);
  68
  69     cairo_int_status_t (*copy_boxes) (void *surface,
  70                                       cairo_surface_t *src,
  71                                       cairo_boxes_t *boxes,
  72                                       const cairo_rectangle_int_t *extents,
  73                                       int dx, int dy);
  74
  75     cairo_surface_t * (*pattern_to_surface) (cairo_surface_t *dst,
  76                                              const cairo_pattern_t *pattern,
  77                                              cairo_bool_t is_mask,
  78                                              const cairo_rectangle_int_t *extents,
  79                                              const cairo_rectangle_int_t *sample,
  80                                              int *src_x, int *src_y);
  81
  82     cairo_int_status_t (*composite_boxes) (void                 *surface,
  83                                            cairo_operator_t      op,
  84                                            cairo_surface_t      *source,
  85                                            cairo_surface_t      *mask,
  86                                            int                   src_x,
  87                                            int                   src_y,
  88                                            int                   mask_x,
  89                                            int                   mask_y,
  90                                            int                   dst_x,
  91                                            int                   dst_y,
  92                                            cairo_boxes_t                *boxes,
  93                                            const cairo_rectangle_int_t  *extents);
  94
  95     /* general shape masks using a span renderer */
  96     cairo_int_status_t (*renderer_init) (cairo_abstract_span_renderer_t *renderer,
  97                                          const cairo_composite_rectangles_t *extents,
  98                                          cairo_antialias_t antialias,
  99                                          cairo_bool_t    needs_clip);
 100
 101     void (*renderer_fini) (cairo_abstract_span_renderer_t *renderer,
 102                            cairo_int_status_t status);
 103 };
 104
 105 cairo_private void
 106 _cairo_spans_compositor_init (cairo_spans_compositor_t *compositor,
 107                               const cairo_compositor_t  *delegate);
 108
 109 CAIRO_END_DECLS
 110
 111 #endif /* CAIRO_SPANS_COMPOSITOR_PRIVATE_H */