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Mention mipmap and memory usage in the texture editor preview

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This is important to quickly determine if a texture is using
unexpectedly high amounts of memory, or to troubleshoot
why mipmap sampling modes have no effect on it.

- Improve readability by increasing outline size and reducing
  font size to match the rest of the editor UI.
This commit is contained in:
Hugo Locurcio 2022-06-22 08:24:39 +02:00
parent d91def0c7b
commit 87c989f98d
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GPG key ID: 39E8F8BE30B0A49C
1 changed files with 46 additions and 6 deletions
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52
editor/plugins/texture_editor_plugin.cpp
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@ -59,7 +59,7 @@ void TexturePreview::_notification(int p_what) {
}
void TexturePreview::_update_metadata_label_text() {
Ref<Texture2D> texture = texture_display->get_texture();
const Ref<Texture2D> texture = texture_display->get_texture();
String format;
if (Object::cast_to<ImageTexture>(*texture)) {
@ -70,7 +70,49 @@ void TexturePreview::_update_metadata_label_text() {
format = texture->get_class();
}
metadata_label->set_text(vformat(String::utf8("%s×%s %s"), itos(texture->get_width()), itos(texture->get_height()), format));
const Ref<Image> image = texture->get_image();
if (image.is_valid()) {
const int mipmaps = image->get_mipmap_count();
// Avoid signed integer overflow that could occur with huge texture sizes by casting everything to uint64_t.
uint64_t memory = uint64_t(image->get_width()) * uint64_t(image->get_height()) * uint64_t(Image::get_format_pixel_size(image->get_format()));
// Handle VRAM-compressed formats that are stored with 4 bpp.
memory >>= Image::get_format_pixel_rshift(image->get_format());
float mipmaps_multiplier = 1.0;
float mipmap_increase = 0.25;
for (int i = 0; i < mipmaps; i++) {
// Each mip adds 25% memory usage of the previous one.
// With a complete mipmap chain, memory usage increases by ~33%.
mipmaps_multiplier += mipmap_increase;
mipmap_increase *= 0.25;
}
memory *= mipmaps_multiplier;
if (mipmaps >= 1) {
metadata_label->set_text(
vformat(String::utf8("%d×%d %s\n") + TTR("%s Mipmaps") + "\n" + TTR("Memory: %s"),
texture->get_width(),
texture->get_height(),
format,
mipmaps,
String::humanize_size(memory)));
} else {
// "No Mipmaps" is easier to distinguish than "0 Mipmaps",
// especially since 0, 6, and 8 look quite close with the default code font.
metadata_label->set_text(
vformat(String::utf8("%d×%d %s\n") + TTR("No Mipmaps") + "\n" + TTR("Memory: %s"),
texture->get_width(),
texture->get_height(),
format,
String::humanize_size(memory)));
}
} else {
metadata_label->set_text(
vformat(String::utf8("%d×%d %s"),
texture->get_width(),
texture->get_height(),
format));
}
}
TexturePreview::TexturePreview(Ref<Texture2D> p_texture, bool p_show_metadata) {
@ -97,11 +139,9 @@ TexturePreview::TexturePreview(Ref<Texture2D> p_texture, bool p_show_metadata) {
metadata_label->add_theme_color_override("font_color", Color::named("white"));
metadata_label->add_theme_color_override("font_color_shadow", Color::named("black"));
metadata_label->add_theme_font_size_override("font_size", 16 * EDSCALE);
metadata_label->add_theme_font_size_override("font_size", 14 * EDSCALE);
metadata_label->add_theme_color_override("font_outline_color", Color::named("black"));
metadata_label->add_theme_constant_override("outline_size", 2 * EDSCALE);
metadata_label->add_theme_constant_override("shadow_outline_size", 1);
metadata_label->add_theme_constant_override("outline_size", 8 * EDSCALE);
metadata_label->set_h_size_flags(Control::SIZE_SHRINK_END);
metadata_label->set_v_size_flags(Control::SIZE_SHRINK_END);