mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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a1c4b001a5
This function is supposed to describe the backend in use. The describe function is optional - and therefore initialized as NULL everywhere. Note: It is well known that the xlib backend uses X. What is not known is what version the server supports or what graphics card it is running on. That is the information the describe vfunc is supposed to provide.
141 lines
4.4 KiB
C
141 lines
4.4 KiB
C
/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
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/*
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* Copyright © Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#include "cairo-boilerplate-private.h"
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#include "cairo-script.h"
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static cairo_user_data_key_t script_closure_key;
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typedef struct _script_target_closure {
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char *filename;
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double width;
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double height;
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} script_target_closure_t;
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static cairo_surface_t *
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_cairo_boilerplate_script_create_surface (const char *name,
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cairo_content_t content,
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double width,
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double height,
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double max_width,
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double max_height,
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cairo_boilerplate_mode_t mode,
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int id,
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void **closure)
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{
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script_target_closure_t *ptc;
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cairo_device_t *ctx;
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cairo_surface_t *surface;
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cairo_status_t status;
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*closure = ptc = xmalloc (sizeof (script_target_closure_t));
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ptc->width = width;
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ptc->height = height;
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xasprintf (&ptc->filename, "%s.out.cs", name);
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xunlink (ptc->filename);
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ctx = cairo_script_create (ptc->filename);
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surface = cairo_script_surface_create (ctx, content, width, height);
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cairo_device_destroy (ctx);
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status = cairo_surface_set_user_data (surface,
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&script_closure_key, ptc, NULL);
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if (status == CAIRO_STATUS_SUCCESS)
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return surface;
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cairo_surface_destroy (surface);
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surface = cairo_boilerplate_surface_create_in_error (status);
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free (ptc->filename);
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free (ptc);
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return surface;
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}
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static cairo_status_t
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_cairo_boilerplate_script_finish_surface (cairo_surface_t *surface)
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{
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cairo_surface_finish (surface);
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return cairo_surface_status (surface);
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}
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static cairo_status_t
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_cairo_boilerplate_script_surface_write_to_png (cairo_surface_t *surface,
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const char *filename)
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{
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return CAIRO_STATUS_WRITE_ERROR;
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}
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static cairo_surface_t *
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_cairo_boilerplate_script_convert_to_image (cairo_surface_t *surface,
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int page)
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{
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script_target_closure_t *ptc = cairo_surface_get_user_data (surface,
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&script_closure_key);
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return cairo_boilerplate_convert_to_image (ptc->filename, page);
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}
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static cairo_surface_t *
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_cairo_boilerplate_script_get_image_surface (cairo_surface_t *surface,
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int page,
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int width,
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int height)
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{
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cairo_surface_t *image;
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image = _cairo_boilerplate_script_convert_to_image (surface, page);
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cairo_surface_set_device_offset (image,
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cairo_image_surface_get_width (image) - width,
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cairo_image_surface_get_height (image) - height);
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surface = _cairo_boilerplate_get_image_surface (image, 0, width, height);
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cairo_surface_destroy (image);
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return surface;
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}
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static void
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_cairo_boilerplate_script_cleanup (void *closure)
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{
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script_target_closure_t *ptc = closure;
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free (ptc->filename);
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free (ptc);
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}
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static const cairo_boilerplate_target_t target[] = {{
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"script", "script", ".cs", NULL,
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CAIRO_SURFACE_TYPE_SCRIPT, CAIRO_CONTENT_COLOR_ALPHA, 0,
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"cairo_script_surface_create",
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_cairo_boilerplate_script_create_surface,
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NULL,
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_cairo_boilerplate_script_finish_surface,
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_cairo_boilerplate_script_get_image_surface,
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_cairo_boilerplate_script_surface_write_to_png,
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_cairo_boilerplate_script_cleanup,
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NULL, NULL, FALSE, FALSE, FALSE
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}};
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CAIRO_BOILERPLATE (script, target)
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