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Fonts: clarify ClearTexData() as not supported with dynamic atlases.

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ocornut
2025-06-11 15:46:28 +02:00
parent 093d01269a
commit 80404fae30
3 changed files with 30 additions and 22 deletions
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imgui.h
+2 -2
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@@ -3517,7 +3517,7 @@ struct ImFontAtlas
// As we are transitioning toward a new font system, we expect to obsolete those soon:
IMGUI_API void ClearInputData(); // [OBSOLETE] Clear input data (all ImFontConfig structures including sizes, TTF data, glyph ranges, etc.) = all the data used to build the texture and fonts.
IMGUI_API void ClearFonts(); // [OBSOLETE] Clear input+output font data (same as ClearInputData() + glyphs storage, UV coordinates).
IMGUI_API void ClearTexData(); // [OBSOLETE] Clear output texture data (CPU side). Saves RAM once the texture has been copied to graphics memory.
IMGUI_API void ClearTexData(); // [OBSOLETE] Clear CPU-side copy of the texture data. Saves RAM once the texture has been copied to graphics memory.
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Legacy path for build atlas + retrieving pixel data.
@@ -3592,7 +3592,7 @@ struct ImFontAtlas
ImTextureRef TexRef; // User data to refer to the latest texture once it has been uploaded to user's graphic systems. It is passed back to you during rendering via the ImDrawCmd structure.
ImTextureData* TexData; // Current texture
ImVector<ImTextureData*> TexList; // Texture list (most often TexList.Size == 1). TexData is always == TexList.back(). DO NOT USE DIRECTLY, USE GetDrawData().Textures[]/GetPlatformIO().Textures[] instead!
bool Locked; // Marked as Locked by ImGui::NewFrame() so attempt to modify the atlas will assert.
bool Locked; // Marked as locked during ImGui::NewFrame()..EndFrame() scope if TexUpdates are not supported. Any attempt to modify the atlas will assert.
bool RendererHasTextures;// Copy of (BackendFlags & ImGuiBackendFlags_RendererHasTextures) from supporting context.
bool TexIsBuilt; // Set when texture was built matching current font input. Mostly useful for legacy IsBuilt() call.
bool TexPixelsUseColors; // Tell whether our texture data is known to use colors (rather than just alpha channel), in order to help backend select a format or conversion process.