Split the atlas into three, well two, but two different cases for the fonts.

Platforms that can use OS fonts don't need font_atlas.zim but they do
need ascii font for debug, so does use asciifont_atlas.zim.

.gitignore

@@ -90,6 +90,8 @@ screenshots
 android/assets/lang
 android/assets/flash0
 ui_atlas.zim.png
+font_atlas.zim.png
+asciifont_atlas.zim.png
 ppge_atlas.zim.png
 local.properties
 r.sh

CMakeLists.txt

@@ -2243,9 +2243,16 @@ if(WIN32)
 	list(APPEND NativeAppSource ${WindowsFiles})
 endif()
 
+set(BigFontAssets
+	assets/font_atlas.zim
+	assets/font_atlas.meta
+)
+
 set(NativeAssets
-	android/assets/ui_atlas.zim
+	android/assets/ui_atlas.zim  # Why are we getting these from the Android folder?
 	android/assets/ui_atlas.meta
+	android/assets/asciifont_atlas.zim
+	android/assets/asciifont_atlas.meta
 	assets/debugger
 	assets/lang
 	assets/shaders
@@ -2357,6 +2364,7 @@ if(TargetBin)
 		file(GLOB_RECURSE DEBUGGER_FILES assets/debugger/*)
 
 		if(NOT IOS)
+			set_source_files_properties(${BigFontAssets} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources/assets")
 			set_source_files_properties(${NativeAssets} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources/assets")
 			set_source_files_properties(${FLASH0_FILES} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources/assets/flash0/font")
 			set_source_files_properties(${LANG_FILES} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources/assets/lang")
@@ -2365,10 +2373,10 @@ if(TargetBin)
 		endif()
 
 		if(IOS)
-			add_executable(${TargetBin} MACOSX_BUNDLE ${ICON_PATH_ABS} ${NativeAssets} ${SHADER_FILES} ${DEBUGGER_FILES} ${FLASH0_FILES} ${LANG_FILES} ${NativeAppSource} "ios/Settings.bundle" "ios/Launch Screen.storyboard")
+			add_executable(${TargetBin} MACOSX_BUNDLE ${ICON_PATH_ABS} ${NativeAssets} ${BigFontAssets} {SHADER_FILES} ${DEBUGGER_FILES} ${FLASH0_FILES} ${LANG_FILES} ${NativeAppSource} "ios/Settings.bundle" "ios/Launch Screen.storyboard")
 			file(INSTALL "${CMAKE_SOURCE_DIR}/ext/vulkan/iOS/Frameworks/libMoltenVK.dylib" DESTINATION "${CMAKE_BINARY_DIR}/PPSSPP.app/Frameworks/")
 		else()
-			add_executable(${TargetBin} MACOSX_BUNDLE ${ICON_PATH_ABS} ${NativeAssets} ${SHADER_FILES} ${DEBUGGER_FILES} ${FLASH0_FILES} ${LANG_FILES} ${NativeAppSource})
+			add_executable(${TargetBin} MACOSX_BUNDLE ${ICON_PATH_ABS} ${NativeAssets} ${BigFontAssets} ${SHADER_FILES} ${DEBUGGER_FILES} ${FLASH0_FILES} ${LANG_FILES} ${NativeAppSource})
 			file(INSTALL "${CMAKE_SOURCE_DIR}/ext/vulkan/macOS/Frameworks/libMoltenVK.dylib" DESTINATION "${CMAKE_BINARY_DIR}/PPSSPPSDL.app/Contents/Frameworks/")
 			if(TARGET SDL2::SDL2 AND NOT USING_QT_UI)
 				add_custom_command(TARGET ${TargetBin} POST_BUILD COMMAND /bin/bash "${CMAKE_SOURCE_DIR}/SDL/macbundle.sh" "${CMAKE_BINARY_DIR}/PPSSPPSDL.app")
@@ -2392,6 +2400,7 @@ endif()
 
 # installs
 if(NOT ANDROID)
+	file(INSTALL ${BigFontAssets} DESTINATION assets)
 	file(INSTALL ${NativeAssets} DESTINATION assets)
 	file(INSTALL assets/flash0 DESTINATION assets)
 endif()

Common/UI/Context.cpp

@@ -40,11 +40,20 @@ void UIContext::BeginFrame() {
 		uitexture_ = CreateTextureFromFile(draw_, "ui_atlas.zim", ImageFileType::ZIM, false);
 		_dbg_assert_msg_(uitexture_, "Failed to load ui_atlas.zim.\n\nPlace it in the directory \"assets\" under your PPSSPP directory.");
 		if (!fontTexture_) {
+#if PPSSPP_PLATFORM(WINDOWS) || PPSSPP_PLATFORM(ANDROID)
+			// Don't bother with loading font_atlas.zim
+#else
 			fontTexture_ = CreateTextureFromFile(draw_, "font_atlas.zim", ImageFileType::ZIM, false);
-			if (!fontTexture_)
+#endif
+			if (!fontTexture_) {
+				// Load the smaller ascii font only, like on Android. For debug ui etc.
+				fontTexture_ = CreateTextureFromFile(draw_, "asciifont_atlas.zim", ImageFileType::ZIM, false);
+				if (!fontTexture_) {
 					WARN_LOG(SYSTEM, "Failed to load font_atlas.zim");
 				}
 			}
+		}
+	}
 	uidrawbufferTop_->SetCurZ(0.0f);
 	uidrawbuffer_->SetCurZ(0.0f);
 	ActivateTopScissor();

UI/NativeApp.cpp

@@ -949,9 +949,13 @@ bool NativeInitGraphics(GraphicsContext *graphicsContext) {
 		return false;
 	}
 
-	// Load any missing atlas.
+	// Load any missing atlas metadata (the images are loaded from UIContext).
 	LoadAtlasMetadata(g_ui_atlas, "ui_atlas.meta", true);
+#if !(PPSSPP_PLATFORM(WINDOWS) || PPSSPP_PLATFORM(ANDROID))
 	LoadAtlasMetadata(g_font_atlas, "font_atlas.meta", g_ui_atlas.num_fonts == 0);
+#else
+	LoadAtlasMetadata(g_font_atlas, "asciifont_atlas.meta", g_ui_atlas.num_fonts == 0);
+#endif
 
 	ui_draw2d.SetAtlas(&g_ui_atlas);
 	ui_draw2d.SetFontAtlas(&g_font_atlas);
@@ -1213,13 +1217,11 @@ void NativeRender(GraphicsContext *graphicsContext) {
 			// Modifying the bounds here can be used to "inset" the whole image to gain borders for TV overscan etc.
 			// The UI now supports any offset but not the EmuScreen yet.
 			uiContext->SetBounds(Bounds(0, 0, dp_xres, dp_yres));
-			// uiContext->SetBounds(Bounds(dp_xres/2, 0, dp_xres / 2, dp_yres / 2));
 
 			// OSX 10.6 and SDL 1.2 bug.
 #if defined(__APPLE__) && !defined(USING_QT_UI)
 			static int dp_xres_old = dp_xres;
 			if (dp_xres != dp_xres_old) {
-				// uiTexture->Load("ui_atlas.zim");
 				dp_xres_old = dp_xres;
 			}
 #endif

asciifont_atlasscript.txt

@@ -0,0 +1,2 @@
+2048
+font UBUNTU24 assets/Roboto-Condensed.ttf UWER 34 -2

buildatlas.sh

@@ -1,3 +1,9 @@
-./ext/native/tools/build/atlastool atlasscript.txt ui 8888 && cp ui_atlas.zim ui_atlas.meta assets && cp ui_atlas.zim ui_atlas.meta android/assets && rm ui_atlas.cpp ui_atlas.h
+# Note that we do not copy the big font atlas to Android assets. No longer needed!
+
+./ext/native/tools/build/atlastool ui_atlasscript.txt ui 8888 && cp ui_atlas.zim ui_atlas.meta assets && cp ui_atlas.zim ui_atlas.meta android/assets && rm ui_atlas.cpp ui_atlas.h
+./ext/native/tools/build/atlastool font_atlasscript.txt font 8888 && cp font_atlas.zim font_atlas.meta assets && rm font_atlas.cpp font_atlas.h
+./ext/native/tools/build/atlastool asciifont_atlasscript.txt asciifont 8888 && cp asciifont_atlas.zim asciifont_atlas.meta assets && cp asciifont_atlas.zim asciifont_atlas.meta android/assets && rm asciifont_atlas.cpp asciifont_atlas.h
 
 rm ui_atlas.zim ui_atlas.meta
+rm font_atlas.zim font_atlas.meta
+rm asciifont_atlas.zim asciifont_atlas.meta

ext/native/tools/atlastool.cpp

@@ -772,9 +772,8 @@ void LearnFile(const char *filename, const char *desc, std::set<u16> &chars, uin
 			}
 		}
 		delete[] data;
-		printf("%i %s characters learned.\n", learnCount, desc);
+		printf("%d %s characters learned.\n", learnCount, desc);
 	}
-
 }
 
 void GetLocales(const char *locales, std::vector<CharRange> &ranges)
@@ -789,12 +788,15 @@ void GetLocales(const char *locales, std::vector<CharRange> &ranges)
 		}
 	}
 
-	// Also, load chinese.txt if available.
+	LearnFile("assets/lang/zh_CN.ini", "Chinese", kanji, 0x3400, 0xFFFF);
-	LearnFile("chinese.txt", "Chinese", kanji, 0x3400, 0xFFFF);
+	LearnFile("assets/lang/zh_TW.ini", "Chinese", kanji, 0x3400, 0xFFFF);
-	LearnFile("korean.txt", "Korean", hangul1, 0x1100, 0x11FF);
+	LearnFile("assets/langregion.ini", "Chinese", kanji, 0x3400, 0xFFFF);
-	LearnFile("korean.txt", "Korean", hangul2, 0x3130, 0x318F);
+	LearnFile("assets/lang/ko_KR.ini", "Korean", hangul1, 0x1100, 0x11FF);
-	LearnFile("korean.txt", "Korean", hangul3, 0xAC00, 0xD7A3);
+	LearnFile("assets/lang/ko_KR.ini", "Korean", hangul2, 0x3130, 0x318F);
-
+	LearnFile("assets/lang/ko_KR.ini", "Korean", hangul3, 0xAC00, 0xD7A3);
+	LearnFile("assets/langregion.ini", "Korean", hangul1, 0x1100, 0x11FF);
+	LearnFile("assets/langregion.ini", "Korean", hangul2, 0x3130, 0x318F);
+	LearnFile("assets/langregion.ini", "Korean", hangul3, 0xAC00, 0xD7A3);
 	// The end point of a range is now inclusive!
 
 	for (size_t i = 0; i < strlen(locales); i++) {

font_atlasscript.txt

@@ -0,0 +1,3 @@
+2048
+font UBUNTU24 assets/Roboto-Condensed.ttf UWER 34 -2
+font UBUNTU24 C:/Windows/Fonts/ARIALUNI.ttf UWEhkcRGHKVTe 30 0

ui_atlasscript.txt

@@ -1,6 +1,4 @@
-2048
+512
-font UBUNTU24 assets/Roboto-Condensed.ttf UWER 34 -2
-font UBUNTU24 C:/Windows/Fonts/ARIALUNI.ttf UWEhkcRGHKVTe 30 0
 image I_SOLIDWHITE white.png copy
 image I_CROSS source_assets/image/cross.png copy
 image I_CIRCLE source_assets/image/circle.png copy