mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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327 lines
8.0 KiB
C
327 lines
8.0 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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static gboolean verbose;
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static char *directory = NULL;
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static guint texture_count;
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static guint font_count;
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static GHashTable *fonts;
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static void
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extract_texture (GskRenderNode *node)
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{
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GdkTexture *texture;
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char *filename;
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char *path;
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if (gsk_render_node_get_node_type (node) == GSK_TEXTURE_NODE)
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texture = gsk_texture_node_get_texture (node);
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else
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texture = gsk_texture_scale_node_get_texture (node);
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do {
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filename = g_strdup_printf ("gtk-texture-%u.ttf", texture_count);
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path = g_build_path ("/", directory, filename, NULL);
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if (!g_file_test (path, G_FILE_TEST_EXISTS))
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break;
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g_free (path);
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g_free (filename);
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texture_count++;
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} while (TRUE);
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if (verbose)
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g_print ("Writing %dx%d texture to %s\n",
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gdk_texture_get_width (texture),
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gdk_texture_get_height (texture),
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filename);
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if (!gdk_texture_save_to_png (texture, path))
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{
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g_printerr (_("Failed to write %s\n"), filename);
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}
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g_free (path);
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g_free (filename);
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texture_count++;
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}
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static void
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extract_font (GskRenderNode *node)
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{
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PangoFont *font;
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hb_font_t *hb_font;
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hb_face_t *hb_face;
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hb_blob_t *hb_blob;
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const char *data;
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unsigned int length;
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char *filename;
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char *path;
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char *sum;
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font = gsk_text_node_get_font (node);
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hb_font = pango_font_get_hb_font (font);
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hb_face = hb_font_get_face (hb_font);
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hb_blob = hb_face_reference_blob (hb_face);
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if (hb_blob == hb_blob_get_empty ())
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{
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hb_blob_destroy (hb_blob);
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g_warning ("Failed to extract font data\n");
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return;
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}
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data = hb_blob_get_data (hb_blob, &length);
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sum = g_compute_checksum_for_data (G_CHECKSUM_SHA256, (const guchar *)data, length);
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if (!fonts)
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fonts = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
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if (g_hash_table_contains (fonts, sum))
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{
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g_free (sum);
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hb_blob_destroy (hb_blob);
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return;
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}
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g_hash_table_add (fonts, sum);
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do {
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filename = g_strdup_printf ("gtk-font-%u.ttf", font_count);
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path = g_build_path ("/", directory, filename, NULL);
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if (!g_file_test (path, G_FILE_TEST_EXISTS))
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break;
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g_free (path);
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g_free (filename);
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font_count++;
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} while (TRUE);
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if (verbose)
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{
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PangoFontDescription *desc;
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desc = pango_font_describe (font);
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g_print ("Writing font %s to %s\n",
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pango_font_description_get_family (desc),
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filename);
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pango_font_description_free (desc);
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}
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if (!g_file_set_contents (path, data, length, NULL))
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{
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g_printerr (_("Failed to write %s\n"), filename);
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}
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hb_blob_destroy (hb_blob);
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g_free (path);
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g_free (filename);
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font_count++;
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}
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#define N_NODE_TYPES (GSK_SUBSURFACE_NODE + 1)
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static void
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extract_from_node (GskRenderNode *node)
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{
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g_assert (gsk_render_node_get_node_type (node) < N_NODE_TYPES);
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switch (gsk_render_node_get_node_type (node))
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{
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case GSK_CONTAINER_NODE:
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for (unsigned int i = 0; i < gsk_container_node_get_n_children (node); i++)
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extract_from_node (gsk_container_node_get_child (node, i));
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break;
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case GSK_CAIRO_NODE:
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case GSK_COLOR_NODE:
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case GSK_LINEAR_GRADIENT_NODE:
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case GSK_REPEATING_LINEAR_GRADIENT_NODE:
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case GSK_RADIAL_GRADIENT_NODE:
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case GSK_REPEATING_RADIAL_GRADIENT_NODE:
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case GSK_CONIC_GRADIENT_NODE:
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case GSK_BORDER_NODE:
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case GSK_INSET_SHADOW_NODE:
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case GSK_OUTSET_SHADOW_NODE:
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break;
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case GSK_TEXTURE_NODE:
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case GSK_TEXTURE_SCALE_NODE:
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extract_texture (node);
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break;
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case GSK_TRANSFORM_NODE:
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extract_from_node (gsk_transform_node_get_child (node));
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break;
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case GSK_OPACITY_NODE:
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extract_from_node (gsk_opacity_node_get_child (node));
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break;
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case GSK_COLOR_MATRIX_NODE:
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extract_from_node (gsk_color_matrix_node_get_child (node));
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break;
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case GSK_REPEAT_NODE:
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extract_from_node (gsk_repeat_node_get_child (node));
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break;
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case GSK_CLIP_NODE:
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extract_from_node (gsk_clip_node_get_child (node));
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break;
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case GSK_ROUNDED_CLIP_NODE:
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extract_from_node (gsk_rounded_clip_node_get_child (node));
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break;
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case GSK_SHADOW_NODE:
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extract_from_node (gsk_shadow_node_get_child (node));
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break;
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case GSK_BLEND_NODE:
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extract_from_node (gsk_blend_node_get_bottom_child (node));
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extract_from_node (gsk_blend_node_get_top_child (node));
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break;
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case GSK_CROSS_FADE_NODE:
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extract_from_node (gsk_cross_fade_node_get_start_child (node));
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extract_from_node (gsk_cross_fade_node_get_end_child (node));
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break;
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case GSK_TEXT_NODE:
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extract_font (node);
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break;
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case GSK_BLUR_NODE:
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extract_from_node (gsk_blur_node_get_child (node));
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break;
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case GSK_DEBUG_NODE:
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extract_from_node (gsk_debug_node_get_child (node));
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break;
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case GSK_GL_SHADER_NODE:
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for (unsigned int i = 0; i < gsk_gl_shader_node_get_n_children (node); i++)
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extract_from_node (gsk_gl_shader_node_get_child (node, i));
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break;
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case GSK_MASK_NODE:
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extract_from_node (gsk_mask_node_get_source (node));
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extract_from_node (gsk_mask_node_get_mask (node));
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break;
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case GSK_FILL_NODE:
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extract_from_node (gsk_fill_node_get_child (node));
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break;
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case GSK_STROKE_NODE:
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extract_from_node (gsk_stroke_node_get_child (node));
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break;
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case GSK_SUBSURFACE_NODE:
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extract_from_node (gsk_subsurface_node_get_child (node));
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break;
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case GSK_NOT_A_RENDER_NODE:
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default:
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g_assert_not_reached ();
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}
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}
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static void
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file_extract (const char *filename)
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{
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GskRenderNode *node;
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node = load_node_file (filename);
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extract_from_node (node);
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gsk_render_node_unref (node);
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}
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void
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do_extract (int *argc,
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const char ***argv)
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{
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GOptionContext *context;
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char **filenames = NULL;
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const GOptionEntry entries[] = {
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{ "dir", 0, 0, G_OPTION_ARG_FILENAME, &directory, N_("Directory to use"), N_("DIRECTORY") },
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{ "verbose", 0, 0, G_OPTION_ARG_NONE, &verbose, N_("Be verbose"), NULL },
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{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL, N_("FILE") },
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{ NULL, }
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};
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GError *error = NULL;
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g_set_prgname ("gtk4-rendernode-tool extract");
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context = g_option_context_new (NULL);
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g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);
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g_option_context_add_main_entries (context, entries, NULL);
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g_option_context_set_summary (context, _("Extract data urls from the render node."));
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if (!g_option_context_parse (context, argc, (char ***)argv, &error))
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{
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g_printerr ("%s\n", error->message);
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g_error_free (error);
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exit (1);
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}
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g_option_context_free (context);
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if (filenames == NULL)
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{
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g_printerr (_("No .node file specified\n"));
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exit (1);
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}
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if (g_strv_length (filenames) > 1)
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{
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g_printerr (_("Can only accept a single .node file\n"));
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exit (1);
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}
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if (directory == NULL)
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directory = g_strdup (".");
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file_extract (filenames[0]);
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g_strfreev (filenames);
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g_free (directory);
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}
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