| 0,0 → 1,385 |
|---|
| /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ |
| /* cairo - a vector graphics library with display and print output |
| * |
| * Copyright � 2008 Mozilla 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 Mozilla Foundation. |
| * |
| * Contributor(s): |
| * Vladimir Vukicevic <vladimir@mozilla.com> |
| */ |
| |
| #include "cairoint.h" |
| |
| #include "cairo-image-surface-inline.h" |
| #include "cairo-quartz-image.h" |
| #include "cairo-quartz-private.h" |
| #include "cairo-surface-backend-private.h" |
| |
| #include "cairo-error-private.h" |
| #include "cairo-default-context-private.h" |
| |
| #define SURFACE_ERROR_NO_MEMORY (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_NO_MEMORY))) |
| #define SURFACE_ERROR_TYPE_MISMATCH (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_SURFACE_TYPE_MISMATCH))) |
| #define SURFACE_ERROR_INVALID_SIZE (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_INVALID_SIZE))) |
| #define SURFACE_ERROR_INVALID_FORMAT (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_INVALID_FORMAT))) |
| |
| static void |
| DataProviderReleaseCallback (void *info, const void *data, size_t size) |
| { |
| cairo_surface_t *surface = (cairo_surface_t *) info; |
| cairo_surface_destroy (surface); |
| } |
| |
| static cairo_surface_t * |
| _cairo_quartz_image_surface_create_similar (void *asurface, |
| cairo_content_t content, |
| int width, |
| int height) |
| { |
| cairo_surface_t *isurf = |
| _cairo_image_surface_create_with_content (content, width, height); |
| cairo_surface_t *result = cairo_quartz_image_surface_create (isurf); |
| cairo_surface_destroy (isurf); |
| |
| return result; |
| } |
| |
| static cairo_surface_t * |
| _cairo_quartz_image_surface_create_similar_image (void *asurface, |
| cairo_format_t format, |
| int width, |
| int height) |
| { |
| cairo_surface_t *isurf = cairo_image_surface_create (format, width, height); |
| cairo_surface_t *result = cairo_quartz_image_surface_create (isurf); |
| cairo_surface_destroy (isurf); |
| |
| return result; |
| } |
| |
| static cairo_status_t |
| _cairo_quartz_image_surface_finish (void *asurface) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| |
| /* the imageSurface will be destroyed by the data provider's release callback */ |
| CGImageRelease (surface->image); |
| |
| return CAIRO_STATUS_SUCCESS; |
| } |
| |
| static cairo_status_t |
| _cairo_quartz_image_surface_acquire_source_image (void *asurface, |
| cairo_image_surface_t **image_out, |
| void **image_extra) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| |
| *image_out = surface->imageSurface; |
| *image_extra = NULL; |
| |
| return CAIRO_STATUS_SUCCESS; |
| } |
| |
| static cairo_image_surface_t * |
| _cairo_quartz_image_surface_map_to_image (void *asurface, |
| const cairo_rectangle_int_t *extents) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| return _cairo_surface_map_to_image (&surface->imageSurface->base, extents); |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_unmap_image (void *asurface, |
| cairo_image_surface_t *image) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| return _cairo_surface_unmap_image (&surface->imageSurface->base, image); |
| } |
| |
| static cairo_bool_t |
| _cairo_quartz_image_surface_get_extents (void *asurface, |
| cairo_rectangle_int_t *extents) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| |
| extents->x = 0; |
| extents->y = 0; |
| extents->width = surface->width; |
| extents->height = surface->height; |
| return TRUE; |
| } |
| |
| /* we assume some drawing happened to the image buffer; make sure it's |
| * represented in the CGImage on flush() |
| */ |
| |
| static cairo_status_t |
| _cairo_quartz_image_surface_flush (void *asurface, |
| unsigned flags) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; |
| CGImageRef oldImage = surface->image; |
| CGImageRef newImage = NULL; |
| |
| if (flags) |
| return CAIRO_STATUS_SUCCESS; |
| |
| /* XXX only flush if the image has been modified. */ |
| |
| /* To be released by the ReleaseCallback */ |
| cairo_surface_reference ((cairo_surface_t*) surface->imageSurface); |
| |
| newImage = CairoQuartzCreateCGImage (surface->imageSurface->format, |
| surface->imageSurface->width, |
| surface->imageSurface->height, |
| surface->imageSurface->stride, |
| surface->imageSurface->data, |
| TRUE, |
| NULL, |
| DataProviderReleaseCallback, |
| surface->imageSurface); |
| |
| surface->image = newImage; |
| CGImageRelease (oldImage); |
| |
| return CAIRO_STATUS_SUCCESS; |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_paint (void *abstract_surface, |
| cairo_operator_t op, |
| const cairo_pattern_t *source, |
| const cairo_clip_t *clip) |
| { |
| cairo_quartz_image_surface_t *surface = abstract_surface; |
| return _cairo_surface_paint (&surface->imageSurface->base, |
| op, source, clip); |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_mask (void *abstract_surface, |
| cairo_operator_t op, |
| const cairo_pattern_t *source, |
| const cairo_pattern_t *mask, |
| const cairo_clip_t *clip) |
| { |
| cairo_quartz_image_surface_t *surface = abstract_surface; |
| return _cairo_surface_mask (&surface->imageSurface->base, |
| op, source, mask, clip); |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_stroke (void *abstract_surface, |
| 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_quartz_image_surface_t *surface = abstract_surface; |
| return _cairo_surface_stroke (&surface->imageSurface->base, |
| op, source, path, |
| style, ctm, ctm_inverse, |
| tolerance, antialias, clip); |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_fill (void *abstract_surface, |
| 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_quartz_image_surface_t *surface = abstract_surface; |
| return _cairo_surface_fill (&surface->imageSurface->base, |
| op, source, path, |
| fill_rule, tolerance, antialias, |
| clip); |
| } |
| |
| static cairo_int_status_t |
| _cairo_quartz_image_surface_glyphs (void *abstract_surface, |
| 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_quartz_image_surface_t *surface = abstract_surface; |
| return _cairo_surface_show_text_glyphs (&surface->imageSurface->base, |
| op, source, |
| NULL, 0, |
| glyphs, num_glyphs, |
| NULL, 0, 0, |
| scaled_font, clip); |
| } |
| |
| |
| static const cairo_surface_backend_t cairo_quartz_image_surface_backend = { |
| CAIRO_SURFACE_TYPE_QUARTZ_IMAGE, |
| _cairo_quartz_image_surface_finish, |
| |
| _cairo_default_context_create, |
| |
| _cairo_quartz_image_surface_create_similar, |
| _cairo_quartz_image_surface_create_similar_image, |
| _cairo_quartz_image_surface_map_to_image, |
| _cairo_quartz_image_surface_unmap_image, |
| |
| _cairo_surface_default_source, |
| _cairo_quartz_image_surface_acquire_source_image, |
| NULL, /* release_source_image */ |
| NULL, /* snapshot */ |
| |
| NULL, /* copy_page */ |
| NULL, /* show_page */ |
| |
| _cairo_quartz_image_surface_get_extents, |
| NULL, /* get_font_options */ |
| |
| _cairo_quartz_image_surface_flush, |
| NULL, /* mark_dirty_rectangle */ |
| |
| _cairo_quartz_image_surface_paint, |
| _cairo_quartz_image_surface_mask, |
| _cairo_quartz_image_surface_stroke, |
| _cairo_quartz_image_surface_fill, |
| NULL, /* fill-stroke */ |
| _cairo_quartz_image_surface_glyphs, |
| }; |
| |
| /** |
| * cairo_quartz_image_surface_create: |
| * @image_surface: a cairo image surface to wrap with a quartz image surface |
| * |
| * Creates a Quartz surface backed by a CGImageRef that references the |
| * given image surface. The resulting surface can be rendered quickly |
| * when used as a source when rendering to a #cairo_quartz_surface. If |
| * the data in the image surface is ever updated, cairo_surface_flush() |
| * must be called on the #cairo_quartz_image_surface to ensure that the |
| * CGImageRef refers to the updated data. |
| * |
| * Return value: the newly created surface. |
| * |
| * Since: 1.6 |
| **/ |
| cairo_surface_t * |
| cairo_quartz_image_surface_create (cairo_surface_t *surface) |
| { |
| cairo_quartz_image_surface_t *qisurf; |
| |
| CGImageRef image; |
| |
| cairo_image_surface_t *image_surface; |
| int width, height, stride; |
| cairo_format_t format; |
| unsigned char *data; |
| |
| if (surface->status) |
| return surface; |
| |
| if (! _cairo_surface_is_image (surface)) |
| return SURFACE_ERROR_TYPE_MISMATCH; |
| |
| image_surface = (cairo_image_surface_t*) surface; |
| width = image_surface->width; |
| height = image_surface->height; |
| stride = image_surface->stride; |
| format = image_surface->format; |
| data = image_surface->data; |
| |
| if (!_cairo_quartz_verify_surface_size(width, height)) |
| return SURFACE_ERROR_INVALID_SIZE; |
| |
| if (width == 0 || height == 0) |
| return SURFACE_ERROR_INVALID_SIZE; |
| |
| if (format != CAIRO_FORMAT_ARGB32 && format != CAIRO_FORMAT_RGB24) |
| return SURFACE_ERROR_INVALID_FORMAT; |
| |
| qisurf = malloc(sizeof(cairo_quartz_image_surface_t)); |
| if (qisurf == NULL) |
| return SURFACE_ERROR_NO_MEMORY; |
| |
| memset (qisurf, 0, sizeof(cairo_quartz_image_surface_t)); |
| |
| /* In case the create_cgimage fails, this ref will |
| * be released via the callback (which will be called in |
| * case of failure.) |
| */ |
| cairo_surface_reference (surface); |
| |
| image = CairoQuartzCreateCGImage (format, |
| width, height, |
| stride, |
| data, |
| TRUE, |
| NULL, |
| DataProviderReleaseCallback, |
| image_surface); |
| |
| if (!image) { |
| free (qisurf); |
| return SURFACE_ERROR_NO_MEMORY; |
| } |
| |
| _cairo_surface_init (&qisurf->base, |
| &cairo_quartz_image_surface_backend, |
| NULL, /* device */ |
| _cairo_content_from_format (format)); |
| |
| qisurf->width = width; |
| qisurf->height = height; |
| |
| qisurf->image = image; |
| qisurf->imageSurface = image_surface; |
| |
| return &qisurf->base; |
| } |
| |
| |
| cairo_surface_t * |
| cairo_quartz_image_surface_get_image (cairo_surface_t *asurface) |
| { |
| cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t*) asurface; |
| |
| if (asurface->type != CAIRO_SURFACE_TYPE_QUARTZ_IMAGE) |
| return NULL; |
| |
| return (cairo_surface_t*) surface->imageSurface; |
| } |