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Fix symbolic.svg rendering

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With the shader approach to symbolic recoloring, we must
not recolor the svgs anymore as we're loading them. Instead,
load them the same way that gtk-encode-symbolic-svg does.

This fixes the rendering of large symbolic icons e.g. the
'no search results found' page in the file chooser.
This commit is contained in:
Matthias Clasen 2017-11-07 18:55:01 -05:00
parent 73a3d4b785
commit 284fd36e5d
5 changed files with 252 additions and 185 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

197
gtk/encodesymbolic.c
View File

@ -18,7 +18,6 @@
#include "config.h"
#include <glib.h>
#include <gdk-pixbuf/gdk-pixdata.h>
#include <gdk/gdk.h>
#include <glib/gi18n.h>
@ -32,6 +31,8 @@
#include <stdlib.h>
#include <locale.h>
#include "gtkpixbufutilsprivate.h"
static gchar *output_dir = NULL;
static GOptionEntry args[] = {
@ -39,184 +40,6 @@ static GOptionEntry args[] = {
{ NULL }
};
static GdkPixbuf *
load_symbolic_svg (char *file_data, gsize file_len,
int width,
int height,
const GdkRGBA *fg,
const GdkRGBA *success_color,
const GdkRGBA *warning_color,
const GdkRGBA *error_color,
GError **error)
{
GInputStream *stream;
GdkPixbuf *pixbuf;
gchar *css_fg;
gchar *css_success;
gchar *css_warning;
gchar *css_error;
gchar *data;
gchar *svg_width, *svg_height;
gchar *escaped_file_data;
css_fg = gdk_rgba_to_string (fg);
css_success = css_warning = css_error = NULL;
css_warning = gdk_rgba_to_string (warning_color);
css_error = gdk_rgba_to_string (error_color);
css_success = gdk_rgba_to_string (success_color);
/* Fetch size from the original icon */
stream = g_memory_input_stream_new_from_data (file_data, file_len, NULL);
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
g_object_unref (stream);
if (!pixbuf)
return NULL;
svg_width = g_strdup_printf ("%d", gdk_pixbuf_get_width (pixbuf));
svg_height = g_strdup_printf ("%d",gdk_pixbuf_get_height (pixbuf));
g_object_unref (pixbuf);
escaped_file_data = g_markup_escape_text (file_data, file_len);
data = g_strconcat ("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"
"<svg version=\"1.1\"\n"
" xmlns=\"http://www.w3.org/2000/svg\"\n"
" xmlns:xi=\"http://www.w3.org/2001/XInclude\"\n"
" width=\"", svg_width, "\"\n"
" height=\"", svg_height, "\">\n"
" <style type=\"text/css\">\n"
" rect,circle,path {\n"
" fill: ", css_fg," !important;\n"
" }\n"
" .warning {\n"
" fill: ", css_warning, " !important;\n"
" }\n"
" .error {\n"
" fill: ", css_error ," !important;\n"
" }\n"
" .success {\n"
" fill: ", css_success, " !important;\n"
" }\n"
" </style>\n"
" <xi:include href=\"data:text/xml,", escaped_file_data, "\"/>\n"
"</svg>",
NULL);
g_free (escaped_file_data);
g_free (css_fg);
g_free (css_warning);
g_free (css_error);
g_free (css_success);
g_free (svg_width);
g_free (svg_height);
stream = g_memory_input_stream_new_from_data (data, -1, g_free);
pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream,
width,
height,
TRUE,
NULL,
error);
g_object_unref (stream);
return pixbuf;
}
static void
extract_plane (GdkPixbuf *src,
GdkPixbuf *dst,
int from_plane,
int to_plane)
{
guchar *src_data, *dst_data;
int width, height, src_stride, dst_stride;
guchar *src_row, *dst_row;
int x, y;
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
g_assert (width <= gdk_pixbuf_get_width (dst));
g_assert (height <= gdk_pixbuf_get_height (dst));
src_stride = gdk_pixbuf_get_rowstride (src);
src_data = gdk_pixbuf_get_pixels (src);
dst_data = gdk_pixbuf_get_pixels (dst);
dst_stride = gdk_pixbuf_get_rowstride (dst);
for (y = 0; y < height; y++)
{
src_row = src_data + src_stride * y;
dst_row = dst_data + dst_stride * y;
for (x = 0; x < width; x++)
{
dst_row[to_plane] = src_row[from_plane];
src_row += 4;
dst_row += 4;
}
}
}
static GdkPixbuf *
make_symbolic_pixbuf (char *file,
int width,
int height,
GError **error)
{
GdkRGBA r = { 1,0,0,1}, g = {0,1,0,1};
GdkPixbuf *loaded;
GdkPixbuf *pixbuf;
int plane;
gchar *file_data;
gsize file_len;
if (!g_file_get_contents (file, &file_data, &file_len, error))
return NULL;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height);
gdk_pixbuf_fill (pixbuf, 0);
for (plane = 0; plane < 3; plane++)
{
/* Here we render the svg with all colors solid, this should
* always make the alpha channel the same and it should match
* the final alpha channel for all possible renderings. We
* Just use it as-is for final alpha.
*
* For the 3 non-fg colors, we render once each with that
* color as red, and every other color as green. The resulting
* red will describe the amount of that color is in the
* opaque part of the color. We store these as the rgb
* channels, with the color of the fg being implicitly
* the "rest", as all color fractions should add up to 1.
*/
loaded = load_symbolic_svg (file_data, file_len, width, height,
&g,
plane == 0 ? &r : &g,
plane == 1 ? &r : &g,
plane == 2 ? &r : &g,
error);
if (loaded == NULL)
return NULL;
if (plane == 0)
extract_plane (loaded, pixbuf, 3, 3);
extract_plane (loaded, pixbuf, 0, plane);
g_object_unref (loaded);
}
g_free (file_data);
return pixbuf;
}
int
main (int argc, char **argv)
{
@ -228,6 +51,8 @@ main (int argc, char **argv)
gchar **sizev;
GFileOutputStream *out;
GFile *dest;
char *data;
gsize len;
setlocale (LC_ALL, "");
@ -254,12 +79,12 @@ main (int argc, char **argv)
width = 0;
height = 0;
sizev = g_strsplit (argv[2], "x", 0);
if (g_strv_length (sizev) == 2)
if (g_strv_length (sizev) == 2)
{
width = atoi(sizev[0]);
height = atoi(sizev[1]);
}
g_strfreev (sizev);
g_strfreev (sizev);
if (width == 0 || height == 0)
{
@ -273,13 +98,21 @@ main (int argc, char **argv)
#endif
error = NULL;
symbolic = make_symbolic_pixbuf (path, width, height, &error);
if (!g_file_get_contents (path, &data, &len, &error))
{
g_printerr (_("Can’t load file: %s\n"), error->message);
return 1;
}
symbolic = gtk_make_symbolic_pixbuf_from_data (data, len, width, height, &error);
if (symbolic == NULL)
{
g_printerr (_("Can’t load file: %s\n"), error->message);
return 1;
}
g_free (data);
basename = g_path_get_basename (path);
dot = strrchr (basename, '.');

212
gtk/gdkpixbufutils.c
View File

@ -16,6 +16,7 @@
#include "config.h"
#include <gdk/gdk.h>
#include "gdkpixbufutilsprivate.h"
static GdkPixbuf *
@ -130,3 +131,214 @@ _gdk_pixbuf_new_from_resource_scaled (const gchar *resource_path,
return pixbuf;
}
static GdkPixbuf *
load_symbolic_svg (const char *file_data,
gsize file_len,
int width,
int height,
const GdkRGBA *fg,
const GdkRGBA *success_color,
const GdkRGBA *warning_color,
const GdkRGBA *error_color,
GError **error)
{
GInputStream *stream;
GdkPixbuf *pixbuf;
gchar *css_fg;
gchar *css_success;
gchar *css_warning;
gchar *css_error;
gchar *data;
gchar *svg_width, *svg_height;
gchar *escaped_file_data;
css_fg = gdk_rgba_to_string (fg);
css_success = css_warning = css_error = NULL;
css_warning = gdk_rgba_to_string (warning_color);
css_error = gdk_rgba_to_string (error_color);
css_success = gdk_rgba_to_string (success_color);
/* Fetch size from the original icon */
stream = g_memory_input_stream_new_from_data (file_data, file_len, NULL);
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
g_object_unref (stream);
if (!pixbuf)
return NULL;
svg_width = g_strdup_printf ("%d", gdk_pixbuf_get_width (pixbuf));
svg_height = g_strdup_printf ("%d",gdk_pixbuf_get_height (pixbuf));
g_object_unref (pixbuf);
escaped_file_data = g_markup_escape_text (file_data, file_len);
data = g_strconcat ("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"
"<svg version=\"1.1\"\n"
" xmlns=\"http://www.w3.org/2000/svg\"\n"
" xmlns:xi=\"http://www.w3.org/2001/XInclude\"\n"
" width=\"", svg_width, "\"\n"
" height=\"", svg_height, "\">\n"
" <style type=\"text/css\">\n"
" rect,circle,path {\n"
" fill: ", css_fg," !important;\n"
" }\n"
" .warning {\n"
" fill: ", css_warning, " !important;\n"
" }\n"
" .error {\n"
" fill: ", css_error ," !important;\n"
" }\n"
" .success {\n"
" fill: ", css_success, " !important;\n"
" }\n"
" </style>\n"
" <xi:include href=\"data:text/xml,", escaped_file_data, "\"/>\n"
"</svg>",
NULL);
g_free (escaped_file_data);
g_free (css_fg);
g_free (css_warning);
g_free (css_error);
g_free (css_success);
g_free (svg_width);
g_free (svg_height);
stream = g_memory_input_stream_new_from_data (data, -1, g_free);
pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, width, height, TRUE, NULL, error);
g_object_unref (stream);
return pixbuf;
}
static void
extract_plane (GdkPixbuf *src,
GdkPixbuf *dst,
int from_plane,
int to_plane)
{
guchar *src_data, *dst_data;
int width, height, src_stride, dst_stride;
guchar *src_row, *dst_row;
int x, y;
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
g_assert (width <= gdk_pixbuf_get_width (dst));
g_assert (height <= gdk_pixbuf_get_height (dst));
src_stride = gdk_pixbuf_get_rowstride (src);
src_data = gdk_pixbuf_get_pixels (src);
dst_data = gdk_pixbuf_get_pixels (dst);
dst_stride = gdk_pixbuf_get_rowstride (dst);
for (y = 0; y < height; y++)
{
src_row = src_data + src_stride * y;
dst_row = dst_data + dst_stride * y;
for (x = 0; x < width; x++)
{
dst_row[to_plane] = src_row[from_plane];
src_row += 4;
dst_row += 4;
}
}
}
GdkPixbuf *
gtk_make_symbolic_pixbuf_from_data (const char *file_data,
gsize file_len,
int width,
int height,
GError **error)
{
GdkRGBA r = { 1,0,0,1}, g = {0,1,0,1};
GdkPixbuf *loaded;
GdkPixbuf *pixbuf;
int plane;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height);
gdk_pixbuf_fill (pixbuf, 0);
for (plane = 0; plane < 3; plane++)
{
/* Here we render the svg with all colors solid, this should
* always make the alpha channel the same and it should match
* the final alpha channel for all possible renderings. We
* Just use it as-is for final alpha.
*
* For the 3 non-fg colors, we render once each with that
* color as red, and every other color as green. The resulting
* red will describe the amount of that color is in the
* opaque part of the color. We store these as the rgb
* channels, with the color of the fg being implicitly
* the "rest", as all color fractions should add up to 1.
*/
loaded = load_symbolic_svg (file_data, file_len, width, height,
&g,
plane == 0 ? &r : &g,
plane == 1 ? &r : &g,
plane == 2 ? &r : &g,
error);
if (loaded == NULL)
return NULL;
if (plane == 0)
extract_plane (loaded, pixbuf, 3, 3);
extract_plane (loaded, pixbuf, 0, plane);
g_object_unref (loaded);
}
return pixbuf;
}
GdkPixbuf *
gtk_make_symbolic_pixbuf_from_resource (const char *path,
int width,
int height,
GError **error)
{
GBytes *bytes;
const char *data;
gsize size;
GdkPixbuf *pixbuf;
bytes = g_resources_lookup_data (path, G_RESOURCE_LOOKUP_FLAGS_NONE, error);
if (bytes == NULL)
return NULL;
data = g_bytes_get_data (bytes, &size);
pixbuf = gtk_make_symbolic_pixbuf_from_data (data, size, width, height, error);
g_bytes_unref (bytes);
return pixbuf;
}
GdkPixbuf *
gtk_make_symbolic_pixbuf_from_file (GFile *file,
int width,
int height,
GError **error)
{
char *data;
gsize size;
GdkPixbuf *pixbuf;
if (!g_file_load_contents (file, NULL, &data, &size, NULL, error))
return NULL;
pixbuf = gtk_make_symbolic_pixbuf_from_data (data, size, width, height, error);
g_free (data);
return pixbuf;
}

13
gtk/gdkpixbufutilsprivate.h
View File

@ -30,6 +30,19 @@ GdkPixbuf *_gdk_pixbuf_new_from_resource_scaled (const gchar *resource_path,
gdouble scale,
GError **error);
GdkPixbuf *gtk_make_symbolic_pixbuf_from_data (const char *data,
gsize len,
int width,
int height,
GError **error);
GdkPixbuf *gtk_make_symbolic_pixbuf_from_file (GFile *file,
int width,
int height,
GError **error);
GdkPixbuf *gtk_make_symbolic_pixbuf_from_resource (const char *path,
int width,
int height,
GError **error);
G_END_DECLS
#endif /* __GDK_PIXBUF_UTILS_PRIVATE_H__ */

13
gtk/gtkicontheme.c
View File

@ -3793,7 +3793,11 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
else
size = icon_info->dir_size * dir_scale * icon_info->scale;
if (size == 0)
if (gtk_icon_info_is_symbolic (icon_info))
source_pixbuf = gtk_make_symbolic_pixbuf_from_resource (icon_info->filename,
size, size,
&icon_info->load_error);
else if (size == 0)
source_pixbuf = _gdk_pixbuf_new_from_resource_scaled (icon_info->filename,
icon_info->desired_scale,
&icon_info->load_error);
@ -3828,7 +3832,12 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
size = scaled_desired_size;
else
size = icon_info->dir_size * dir_scale * icon_info->scale;
if (size == 0)
if (gtk_icon_info_is_symbolic (icon_info) && icon_info->icon_file)
source_pixbuf = gtk_make_symbolic_pixbuf_from_file (icon_info->icon_file,
size, size,
&icon_info->load_error);
else if (size == 0)
source_pixbuf = _gdk_pixbuf_new_from_stream_scaled (stream,
icon_info->desired_scale,
NULL,

2
gtk/meson.build
View File

@ -1021,7 +1021,7 @@ gtk_tools = [
['gtk4-query-settings', ['gtk-query-settings.c']],
['gtk4-builder-tool', ['gtk-builder-tool.c']],
['gtk4-update-icon-cache', ['updateiconcache.c']],
['gtk4-encode-symbolic-svg', ['encodesymbolic.c']],
['gtk4-encode-symbolic-svg', ['encodesymbolic.c', 'gdkpixbufutils.c']],
['gtk4-query-immodules', ['queryimmodules.c', 'gtkutils.c']],
]