diff options
Diffstat (limited to 'Build/source/libs/cairo/cairo-1.12.8/src/cairo-surface-offset.c')
-rw-r--r-- | Build/source/libs/cairo/cairo-1.12.8/src/cairo-surface-offset.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/Build/source/libs/cairo/cairo-1.12.8/src/cairo-surface-offset.c b/Build/source/libs/cairo/cairo-1.12.8/src/cairo-surface-offset.c new file mode 100644 index 00000000000..98f57f29804 --- /dev/null +++ b/Build/source/libs/cairo/cairo-1.12.8/src/cairo-surface-offset.c @@ -0,0 +1,308 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * Copyright © 2009 Chris Wilson + * + * 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 Red Hat, Inc. + * + * Contributor(s): + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-error-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-offset-private.h" + +/* A collection of routines to facilitate drawing to an alternate surface. */ + +static void +_copy_transformed_pattern (cairo_pattern_t *pattern, + const cairo_pattern_t *original, + const cairo_matrix_t *ctm_inverse) +{ + _cairo_pattern_init_static_copy (pattern, original); + + if (! _cairo_matrix_is_identity (ctm_inverse)) + _cairo_pattern_transform (pattern, ctm_inverse); +} + +cairo_status_t +_cairo_surface_offset_paint (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + + if (unlikely (target->status)) + return target->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + } + + status = _cairo_surface_paint (target, op, source, dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_mask (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + cairo_pattern_union_t mask_copy; + + if (unlikely (target->status)) + return target->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + _copy_transformed_pattern (&mask_copy.base, mask, &m); + source = &source_copy.base; + mask = &mask_copy.base; + } + + status = _cairo_surface_mask (target, op, + source, mask, + dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_stroke (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t*stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_matrix_t dev_ctm = *ctm; + cairo_matrix_t dev_ctm_inverse = *ctm_inverse; + cairo_pattern_union_t source_copy; + cairo_status_t status; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_translate (&path_copy, + _cairo_fixed_from_int (-x), + _cairo_fixed_from_int (-y)); + dev_path = &path_copy; + + cairo_matrix_init_translate (&m, -x, -y); + cairo_matrix_multiply (&dev_ctm, &dev_ctm, &m); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + cairo_matrix_multiply (&dev_ctm_inverse, &m, &dev_ctm_inverse); + } + + status = _cairo_surface_stroke (surface, op, source, + dev_path, stroke_style, + &dev_ctm, &dev_ctm_inverse, + tolerance, antialias, + dev_clip); + +FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_fill (cairo_surface_t *surface, + int x, int y, + 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_status_t status; + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_translate (&path_copy, + _cairo_fixed_from_int (-x), + _cairo_fixed_from_int (-y)); + dev_path = &path_copy; + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + } + + status = _cairo_surface_fill (surface, op, source, + dev_path, fill_rule, + tolerance, antialias, + dev_clip); + +FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_glyphs (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + cairo_glyph_t *dev_glyphs; + int i; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (dev_glyphs == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (dev_glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + + for (i = 0; i < num_glyphs; i++) { + dev_glyphs[i].x -= x; + dev_glyphs[i].y -= y; + } + } + + status = _cairo_surface_show_text_glyphs (surface, op, source, + NULL, 0, + dev_glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, + dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + free (dev_glyphs); + + return status; +} |