Bundle extra shaders ported from PPSSPP

src/video_core/post_processing/GenerateBundledEffects.cmake

@@ -0,0 +1,50 @@
+# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+set(EFFECT_DIR ${CMAKE_ARGV3})
+set(HEADER_FILE ${CMAKE_ARGV4})
+
+file(GLOB EFFECT_FILES ${EFFECT_DIR}/*.fx)
+list(SORT EFFECT_FILES)
+
+set(ENTRIES "")
+foreach(EFFECT_FILE IN LISTS EFFECT_FILES)
+    get_filename_component(EFFECT_NAME ${EFFECT_FILE} NAME)
+    file(READ ${EFFECT_FILE} EFFECT_BODY)
+
+    string(REGEX REPLACE ";" "{{SEMICOLON}}" EFFECT_BODY "${EFFECT_BODY}")
+    string(REGEX REPLACE "\n" ";" EFFECT_BODY "${EFFECT_BODY}")
+
+    set(EFFECT_TEXT "")
+    foreach(LINE IN LISTS EFFECT_BODY)
+        string(CONCAT EFFECT_TEXT "${EFFECT_TEXT}" "        R\"(${LINE}\n)\"\n")
+    endforeach()
+    string(REGEX REPLACE "{{SEMICOLON}}" ";" EFFECT_TEXT "${EFFECT_TEXT}")
+
+    string(CONCAT ENTRIES "${ENTRIES}"
+        "    {\n        \"${EFFECT_NAME}\",\n${EFFECT_TEXT}    },\n")
+endforeach()
+
+get_filename_component(OUTPUT_DIR ${HEADER_FILE} DIRECTORY)
+make_directory(${OUTPUT_DIR})
+
+file(WRITE ${HEADER_FILE}
+"// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <string_view>
+
+namespace VideoCore {
+
+struct BundledFxEffect {
+    std::string_view name;
+    std::string_view source;
+};
+
+constexpr BundledFxEffect BUNDLED_FX_EFFECTS[]{
+${ENTRIES}};
+
+} // namespace VideoCore
+")