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c1e2ffac83
There's a function now that creates a renderer by name - and allows NULL for the default renderer
138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/* Copyright 2023 Red Hat, Inc.
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*
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* GTK is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* GTK is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GTK; see the file COPYING. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Author: Matthias Clasen
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <glib/gi18n-lib.h>
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#include <glib/gprintf.h>
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#include <glib/gstdio.h>
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#include <gtk/gtk.h>
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#include "gtk-rendernode-tool.h"
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#ifdef GDK_WINDOWING_BROADWAY
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#include <gsk/broadway/gskbroadwayrenderer.h>
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#endif
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static void
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deserialize_error_func (const GskParseLocation *start,
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const GskParseLocation *end,
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const GError *error,
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gpointer user_data)
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{
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GString *string = g_string_new ("<data>");
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g_string_append_printf (string, ":%zu:%zu",
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start->lines + 1, start->line_chars + 1);
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if (start->lines != end->lines || start->line_chars != end->line_chars)
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{
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g_string_append (string, "-");
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if (start->lines != end->lines)
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g_string_append_printf (string, "%zu:", end->lines + 1);
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g_string_append_printf (string, "%zu", end->line_chars + 1);
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}
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g_printerr (_("Error at %s: %s\n"), string->str, error->message);
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g_string_free (string, TRUE);
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}
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GskRenderNode *
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load_node_file (const char *filename)
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{
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GFile *file;
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GBytes *bytes;
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GError *error = NULL;
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file = g_file_new_for_commandline_arg (filename);
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bytes = g_file_load_bytes (file, NULL, NULL, &error);
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g_object_unref (file);
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if (bytes == NULL)
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{
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g_printerr (_("Failed to load node file: %s\n"), error->message);
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g_clear_error (&error);
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exit (1);
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}
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return gsk_render_node_deserialize (bytes, deserialize_error_func, NULL);
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}
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/* keep in sync with gsk/gskrenderer.c */
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static GskRenderer *
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get_renderer_for_name (const char *renderer_name)
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{
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if (renderer_name == NULL)
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return NULL;
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#ifdef GDK_WINDOWING_BROADWAY
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else if (g_ascii_strcasecmp (renderer_name, "broadway") == 0)
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return gsk_broadway_renderer_new ();
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#endif
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else if (g_ascii_strcasecmp (renderer_name, "cairo") == 0)
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return gsk_cairo_renderer_new ();
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else if (g_ascii_strcasecmp (renderer_name, "opengl") == 0 ||
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g_ascii_strcasecmp (renderer_name, "gl") == 0)
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return gsk_gl_renderer_new ();
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else if (g_ascii_strcasecmp (renderer_name, "ngl") == 0)
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return gsk_ngl_renderer_new ();
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#ifdef GDK_RENDERING_VULKAN
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else if (g_ascii_strcasecmp (renderer_name, "vulkan") == 0)
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return gsk_vulkan_renderer_new ();
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#endif
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else
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return NULL;
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}
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GskRenderer *
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create_renderer (const char *name, GError **error)
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{
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GskRenderer *renderer;
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if (name == NULL)
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{
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/* awwwwwkward - there should be code to get the
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* default renderer without a surface */
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static GdkSurface *window = NULL;
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if (window == NULL)
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window = gdk_surface_new_toplevel (gdk_display_get_default ());
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return gsk_renderer_new_for_surface (window);
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}
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renderer = get_renderer_for_name (name);
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if (renderer == NULL)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
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"No renderer named \"%s\"", name);
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return NULL;
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}
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if (!gsk_renderer_realize_for_display (renderer, gdk_display_get_default (), error))
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{
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g_object_unref (renderer);
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return NULL;
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}
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return renderer;
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}
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