shithub: ft²

Download patch

ref: 986a9df1593ab767caffd705013cada724219a22
parent: af91213d67a744cf532548803c4c150eef5cb7c1
author: Olav Sørensen <olav.sorensen@live.no>
date: Wed Apr 29 14:01:44 EDT 2020

Pushed v1.23 code

- Bugfix: The "default dirctories" paths in the config only worked for
  modules and not the other types (fixes GitHub issue #6).
- A much needed code refactoring of data structs. The code now also compiles
  with GCC 10.

--- a/src/ft2_about.c
+++ b/src/ft2_about.c
@@ -6,6 +6,7 @@
 #include "ft2_bmp.h"
 #include "ft2_video.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 // ported from original FT2 code
 
@@ -235,12 +236,10 @@
 void showAboutScreen(void) // called once when About screen is opened
 {
 #define TEXT_BORDER_COL 0x202020
-
-	const char *infoString = "Clone by Olav \"8bitbubsy\" S\025rensen - https://16-bits.org";
 	char verText[32];
 	uint16_t x, y;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
@@ -254,24 +253,25 @@
 
 	setCustomPalColor(TEXT_BORDER_COL); // sets PAL_CUSTOM
 
-	x = 5 + (SCREEN_W - textWidth(infoString)) / 2;
+	const char *infoString = "Clone by Olav \"8bitbubsy\" S\025rensen";
+	x = (SCREEN_W - textWidth(infoString)) >> 1;
 	y = 147;
 	textOutBorder(x, y, PAL_FORGRND, PAL_CUSTOM, infoString);
 
 	sprintf(verText, "v%s (compiled on %s)", PROG_VER_STR, __DATE__);
-	x = ((3 + ABOUT_SCREEN_W) - textWidth(verText)) / 2;
-	y = (3 + ABOUT_SCREEN_H) - ((FONT1_CHAR_H - 2) + 3);
+	x = (SCREEN_W - textWidth(verText)) >> 1;
+	y = 159;
 	textOutBorder(x, y, PAL_FORGRND, PAL_CUSTOM, verText);
 
 	aboutInit();
 
-	editor.ui.aboutScreenShown = true;
+	ui.aboutScreenShown = true;
 }
 
 void hideAboutScreen(void)
 {
 	hidePushButton(PB_EXIT_ABOUT);
-	editor.ui.aboutScreenShown = false;
+	ui.aboutScreenShown = false;
 }
 
 void exitAboutScreen(void)
--- a/src/ft2_audio.c
+++ b/src/ft2_audio.c
@@ -14,9 +14,19 @@
 #include "ft2_wav_renderer.h"
 #include "ft2_mix.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 #define INITIAL_DITHER_SEED 0x12345000
 
+// globalized
+audio_t audio;
+pattSyncData_t *pattSyncEntry;
+chSyncData_t *chSyncEntry;
+chSync_t chSync;
+pattSync_t pattSync;
+volatile bool pattQueueReading, pattQueueClearing, chQueueReading, chQueueClearing;
+
+
 static int8_t pmpCountDiv, pmpChannels = 2;
 static uint16_t smpBuffSize;
 static int32_t masterVol, oldAudioFreq, pmpLeft, randSeed = INITIAL_DITHER_SEED;
@@ -31,11 +41,6 @@
 static uint32_t oldSFrq, oldSFrqRev;
 #endif
 
-pattSyncData_t *pattSyncEntry;
-chSyncData_t *chSyncEntry;
-
-volatile bool pattQueueReading, pattQueueClearing, chQueueReading, chQueueClearing;
-
 #if !defined __amd64__ && !defined _WIN64
 void resetCachedMixerVars(void)
 {
@@ -93,7 +98,7 @@
 		}
 
 		// also update config audio radio buttons if we're on that screen at the moment
-		if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
+		if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
 			setConfigIORadioButtonStates();
 
 		// if it didn't work to use the old settings again, then something is seriously wrong...
@@ -1214,7 +1219,7 @@
 	setLastWorkingAudioDevName();
 
 	// update config audio radio buttons if we're on that screen at the moment
-	if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
+	if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
 		showConfigScreen();
 
 	updateWavRendererSettings();
--- a/src/ft2_audio.h
+++ b/src/ft2_audio.h
@@ -42,7 +42,7 @@
 // for audio/video sync queue. (2^n-1 - don't change this! Queue buffer is already ~2.7MB in size)
 #define SYNC_QUEUE_LEN 4095
 
-struct audio_t
+typedef struct audio_t
 {
 	char *currInputDevice, *currOutputDevice, *lastWorkingAudioDeviceName;
 	char *inputDeviceNames[MAX_AUDIO_DEVICES], *outputDeviceNames[MAX_AUDIO_DEVICES];
@@ -57,7 +57,7 @@
 	double dAudioLatencyMs, dSpeedValMul, dPianoDeltaMul;
 	SDL_AudioDeviceID dev;
 	uint32_t wantFreq, haveFreq, wantSamples, haveSamples, wantChannels, haveChannels;
-} audio;
+} audio_t;
 
 typedef struct
 {
@@ -86,11 +86,11 @@
 	uint64_t timestamp;
 } pattSyncData_t;
 
-struct pattSync
+typedef struct pattSync_t
 {
 	volatile int32_t readPos, writePos;
 	pattSyncData_t data[SYNC_QUEUE_LEN + 1];
-} pattSync;
+} pattSync_t;
 
 typedef struct chSyncData_t
 {
@@ -98,14 +98,18 @@
 	uint64_t timestamp;
 } chSyncData_t;
 
-struct chSync
+typedef struct chSync_t
 {
 	volatile int32_t readPos, writePos;
 	chSyncData_t data[SYNC_QUEUE_LEN + 1];
-} chSync;
+} chSync_t;
 
+// in ft2_audio.c
+extern audio_t audio;
 extern pattSyncData_t *pattSyncEntry;
 extern chSyncData_t *chSyncEntry;
+extern chSync_t chSync;
+extern pattSync_t pattSync;
 
 extern volatile bool pattQueueReading, pattQueueClearing, chQueueReading, chQueueClearing;
 
--- a/src/ft2_audioselector.c
+++ b/src/ft2_audioselector.c
@@ -11,6 +11,7 @@
 #include "ft2_gui.h"
 #include "ft2_mouse.h"
 #include "ft2_audioselector.h"
+#include "ft2_structs.h"
 
 char *getAudioOutputDeviceFromConfig(void)
 {
@@ -220,7 +221,7 @@
 	int32_t mx, my, deviceNum;
 	uint32_t devStringLen;
 
-	if (!editor.ui.configScreenShown || editor.currConfigScreen != CONFIG_SCREEN_IO_DEVICES)
+	if (!ui.configScreenShown || editor.currConfigScreen != CONFIG_SCREEN_IO_DEVICES)
 		return false;
 
 	mx = mouse.x;
@@ -420,7 +421,7 @@
 	const char *deviceName;
 	uint32_t stringLen;
 
-	listShown = (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES);
+	listShown = (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES);
 
 	freeAudioDeviceLists();
 
@@ -518,7 +519,7 @@
 {
 	(void)pos;
 
-	if (editor.ui.configScreenShown && (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES))
+	if (ui.configScreenShown && (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES))
 		drawAudioOutputList();
 }
 
@@ -526,6 +527,6 @@
 {
 	(void)pos;
 
-	if (editor.ui.configScreenShown && (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES))
+	if (ui.configScreenShown && (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES))
 		drawAudioInputList();
 }
--- a/src/ft2_bmp.c
+++ b/src/ft2_bmp.c
@@ -41,6 +41,8 @@
 static uint8_t *loadBMPTo1Bit(const uint8_t *src);
 static uint8_t *loadBMPTo4BitPal(const uint8_t *src);
 
+bmp_t bmp; // globalized
+
 // if you match a color in this table, you have the real palette index (LUT pos)
 #define NUM_CUSTOM_PALS 17
 static const uint32_t bmpCustomPalette[NUM_CUSTOM_PALS] =
--- a/src/ft2_bmp.h
+++ b/src/ft2_bmp.h
@@ -3,7 +3,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 
-struct
+typedef struct bmp_t
 {
 	uint8_t *font1, *font2, *font3, *font4, *font6, *font7, *font8;
 	uint8_t *ft2LogoBadges, *ft2ByBadges, *radiobuttonGfx, *checkboxGfx;
@@ -11,7 +11,9 @@
 	uint8_t *mouseCursors, *mouseCursorBusyClock, *mouseCursorBusyGlass;
 	uint8_t *whitePianoKeys, *blackPianoKeys, *vibratoWaveforms, *scopeRec, *scopeMute;
 	uint32_t *ft2AboutLogo;
-} bmp;
+} bmp_t;
+
+extern bmp_t bmp; // ft2_bmp.c
 
 bool loadBMPs(void);
 void freeBMPs(void);
--- a/src/ft2_checkboxes.c
+++ b/src/ft2_checkboxes.c
@@ -14,6 +14,7 @@
 #include "ft2_mouse.h"
 #include "ft2_edit.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 checkBox_t checkBoxes[NUM_CHECKBOXES] =
 {
@@ -182,7 +183,7 @@
 	uint16_t start, end;
 	checkBox_t *checkBox;
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 	{
 		// if a system request is open, only test the first three checkboxes (reserved)
 		start = 0;
--- a/src/ft2_config.c
+++ b/src/ft2_config.c
@@ -31,6 +31,7 @@
 #include "ft2_pattern_draw.h"
 #include "ft2_tables.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 // globals
 config_t config;
@@ -189,7 +190,7 @@
 	setMouseShape(config.mouseType);
 	changeLogoType(config.id_FastLogo);
 	changeBadgeType(config.id_TritonProd);
-	editor.ui.maxVisibleChannels = (uint8_t)(2 + ((config.ptnMaxChannels + 1) * 2));
+	ui.maxVisibleChannels = (uint8_t)(2 + ((config.ptnMaxChannels + 1) * 2));
 	setPal16(palTable[config.cfg_StdPalNr], true);
 	updatePattFontPtrs();
 
@@ -275,7 +276,7 @@
 	if (midi.initThreadDone)
 	{
 		setMidiInputDeviceFromConfig();
-		if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
+		if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
 			drawMidiInputList();
 	}
 #endif
@@ -1083,11 +1084,11 @@
 
 void showConfigScreen(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
-	editor.ui.configScreenShown = true;
+	ui.configScreenShown = true;
 
 	drawFramework(0, 0, 110, 173, FRAMEWORK_TYPE1);
 
@@ -1503,7 +1504,7 @@
 	hideScrollBar(SB_MIDI_INPUT_SCROLL);
 #endif
 
-	editor.ui.configScreenShown = false;
+	ui.configScreenShown = false;
 }
 
 void exitConfigScreen(void)
@@ -1703,11 +1704,11 @@
 static void redrawPatternEditor(void) // called after changing some pattern editor settings in config
 {
 	// if the cursor was on the volume column while we turned volume column off, move it to effect type slot
-	if (!config.ptnS3M && (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2))
-		editor.cursor.object = CURSOR_EFX0;
+	if (!config.ptnS3M && (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2))
+		cursor.object = CURSOR_EFX0;
 
 	updateChanNums();
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void cbConfigPattStretch(void)
@@ -1841,7 +1842,7 @@
 {
 	config.ptnMaxChannels = MAX_CHANS_SHOWN_4;
 	checkRadioButton(RB_CONFIG_MAXCHAN_4);
-	editor.ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
+	ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
 	redrawPatternEditor();
 }
 
@@ -1849,7 +1850,7 @@
 {
 	config.ptnMaxChannels = MAX_CHANS_SHOWN_6;
 	checkRadioButton(RB_CONFIG_MAXCHAN_6);
-	editor.ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
+	ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
 	redrawPatternEditor();
 }
 
@@ -1857,7 +1858,7 @@
 {
 	config.ptnMaxChannels = MAX_CHANS_SHOWN_8;
 	checkRadioButton(RB_CONFIG_MAXCHAN_8);
-	editor.ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
+	ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
 	redrawPatternEditor();
 }
 
@@ -1865,7 +1866,7 @@
 {
 	config.ptnMaxChannels = MAX_CHANS_SHOWN_12;
 	checkRadioButton(RB_CONFIG_MAXCHAN_12);
-	editor.ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
+	ui.maxVisibleChannels = 2 + (((uint8_t)config.ptnMaxChannels + 1) * 2);
 	redrawPatternEditor();
 }
 
--- a/src/ft2_diskop.c
+++ b/src/ft2_diskop.c
@@ -38,8 +38,9 @@
 #include "ft2_events.h"
 #include "ft2_video.h"
 #include "ft2_inst_ed.h"
+#include "ft2_structs.h"
 
-// hide POSIX warnings
+// hide POSIX warnings for chdir()
 #ifdef _MSC_VER
 #pragma warning(disable: 4996)
 #endif
@@ -669,7 +670,7 @@
 
 	free(ansiPath);
 
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 		drawTextBox(TB_DISKOP_FILENAME);
 }
 
@@ -770,7 +771,7 @@
 
 	 strcat(name, ext);
 
-	 if (editor.ui.diskOpShown)
+	 if (ui.diskOpShown)
 		diskOp_DrawDirectory();
 }
 
@@ -777,7 +778,7 @@
 void diskOpChangeFilenameExt(char *ext)
 {
 	changeFilenameExt(FReq_FileName, ext, PATH_MAX);
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 		diskOp_DrawDirectory();
 }
 
@@ -1136,7 +1137,7 @@
 {
 	int32_t tmpEntry, max;
 
-	if (!editor.ui.diskOpShown || FReq_FileCount == 0)
+	if (!ui.diskOpShown || FReq_FileCount == 0)
 		return false;
 
 	max = FReq_FileCount - FReq_DirPos;
@@ -1200,7 +1201,7 @@
 
 void testDiskOpMouseRelease(void)
 {
-	if (editor.ui.diskOpShown && FReq_EntrySelected != -1)
+	if (ui.diskOpShown && FReq_EntrySelected != -1)
 	{
 		if (mouse.x >= 169 && mouse.x <= 329 && mouse.y >= 4 && mouse.y <= 168)
 			fileListPressed((mouse.y - 4) / (FONT1_CHAR_H + 1));
@@ -2071,7 +2072,7 @@
 	if (FReq_Item == DISKOP_ITEM_PATTERN) radioButtons[RB_DISKOP_PAT_SAVEAS_XP].state = RADIOBUTTON_CHECKED;
 	if (FReq_Item == DISKOP_ITEM_TRACK)   radioButtons[RB_DISKOP_TRK_SAVEAS_XT].state = RADIOBUTTON_CHECKED;
 
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 	{
 		switch (FReq_Item)
 		{
@@ -2104,7 +2105,12 @@
 		case DISKOP_ITEM_MODULE:
 		{
 			FReq_FileName = modTmpFName;
+
+			// FReq_ModCurPathU is always set at this point
+
 			FReq_CurPathU = FReq_ModCurPathU;
+			if (FReq_CurPathU != NULL)
+				UNICHAR_CHDIR(FReq_CurPathU);
 		}
 		break;
 
@@ -2119,6 +2125,8 @@
 			}
 
 			FReq_CurPathU = FReq_InsCurPathU;
+			if (FReq_CurPathU != NULL)
+				UNICHAR_CHDIR(FReq_CurPathU);
 		}
 		break;
 
@@ -2133,6 +2141,8 @@
 			}
 
 			FReq_CurPathU = FReq_SmpCurPathU;
+			if (FReq_CurPathU != NULL)
+				UNICHAR_CHDIR(FReq_CurPathU);
 		}
 		break;
 
@@ -2142,11 +2152,13 @@
 
 			if (!patPathSet)
 			{
-				UNICHAR_STRCPY(FReq_SmpCurPathU, FReq_CurPathU);
+				UNICHAR_STRCPY(FReq_PatCurPathU, FReq_CurPathU);
 				patPathSet = true;
 			}
 
 			FReq_CurPathU = FReq_PatCurPathU;
+			if (FReq_CurPathU != NULL)
+				UNICHAR_CHDIR(FReq_CurPathU);
 		}
 		break;
 
@@ -2161,6 +2173,8 @@
 			}
 
 			FReq_CurPathU = FReq_TrkCurPathU;
+			if (FReq_CurPathU != NULL)
+				UNICHAR_CHDIR(FReq_CurPathU);
 		}
 		break;
 	}
@@ -2176,7 +2190,7 @@
 
 	FReq_ShowAllFiles = false;
 
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 	{
 		editor.diskOpReadDir = true;
 
@@ -2275,12 +2289,12 @@
 		firstTimeOpeningDiskOp = false;
 	}
 
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
-	editor.ui.diskOpShown = true;
-	editor.ui.scopesShown = false;
+	ui.diskOpShown = true;
+	ui.scopesShown = false;
 
 	showTopRightMainScreen();
 	drawDiskOpScreen();
@@ -2322,19 +2336,19 @@
 	hideRadioButtonGroup(RB_GROUP_DISKOP_PAT_SAVEAS);
 	hideRadioButtonGroup(RB_GROUP_DISKOP_TRK_SAVEAS);
 
-	editor.ui.diskOpShown = false;
+	ui.diskOpShown = false;
 }
 
 void exitDiskOpScreen(void)
 {
 	hideDiskOpScreen();
-	editor.ui.oldTopLeftScreen = 0; // disk op. ignores previously opened top screens
+	ui.oldTopLeftScreen = 0; // disk op. ignores previously opened top screens
 	showTopScreen(true);
 }
 
 void toggleDiskOpScreen(void)
 {
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 		exitDiskOpScreen();
 	else
 		showDiskOpScreen();
--- a/src/ft2_edit.c
+++ b/src/ft2_edit.c
@@ -14,6 +14,7 @@
 #include "ft2_sysreqs.h"
 #include "ft2_textboxes.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 enum
 {
@@ -70,7 +71,7 @@
 	uint16_t pattLen;
 	tonTyp *ton;
 
-	if (editor.cursor.object == CURSOR_NOTE)
+	if (cursor.object == CURSOR_NOTE)
 	{
 		// the edit cursor is at the note slot
 
@@ -88,7 +89,7 @@
 
 	// convert key to slot data
 
-	if (editor.cursor.object == CURSOR_VOL1)
+	if (cursor.object == CURSOR_VOL1)
 	{
 		// volume column effect type (mixed keys)
 
@@ -101,7 +102,7 @@
 		if (i == KEY2VOL_ENTRIES)
 			i = -1; // invalid key for slot
 	}
-	else if (editor.cursor.object == CURSOR_EFX0)
+	else if (cursor.object == CURSOR_EFX0)
 	{
 		// effect type (mixed keys)
 
@@ -133,8 +134,8 @@
 
 	// insert slot data
 
-	ton = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + editor.cursor.ch];
-	switch (editor.cursor.object)
+	ton = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + cursor.ch];
+	switch (cursor.object)
 	{
 		case CURSOR_INST1:
 		{
@@ -234,7 +235,7 @@
 	if (i == 0) // if we inserted a zero, check if pattern is empty, for killing
 		killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	return true;
 }
 
@@ -352,7 +353,7 @@
 		}
 		else
 		{
-			c = editor.cursor.ch;
+			c = cursor.ch;
 		}
 
 		for (i = 0; i < song.antChn; i++)
@@ -395,7 +396,7 @@
 		}
 		else
 		{
-			c = editor.cursor.ch;
+			c = cursor.ch;
 		}
 
 		for (i = 0; i < song.antChn; i++)
@@ -454,7 +455,7 @@
 					}
 				}
 
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 				setSongModifiedFlag();
 			}
 		}
@@ -525,7 +526,7 @@
 					}
 				}
 
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 				setSongModifiedFlag();
 			}
 		}
@@ -547,7 +548,7 @@
 		if (patt[editor.editPattern] == NULL)
 			return true;
 
-		note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + editor.cursor.ch];
+		note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + cursor.ch];
 
 		if (keyb.leftShiftPressed)
 		{
@@ -569,7 +570,7 @@
 		}
 		else
 		{
-			if (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2)
+			if (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2)
 			{
 				// delete volume column
 				note->vol = 0;
@@ -589,7 +590,7 @@
 		if (playMode == PLAYMODE_EDIT && pattLen >= 1)
 			setPos(-1, (editor.pattPos + editor.ID_Add) % pattLen, true);
 
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 		setSongModifiedFlag();
 
 		return true;
@@ -615,12 +616,12 @@
 
 	if (patt[editor.editPattern] != NULL)
 	{
-		note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + editor.cursor.ch];
+		note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + cursor.ch];
 		writeVol = note->vol;
 		writeEff = (note->effTyp << 8) | note->eff;
 	}
 
-	if (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2)
+	if (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2)
 		config.volMacro[slot] = writeVol;
 	else
 		config.comMacro[slot] = writeEff;
@@ -639,9 +640,9 @@
 		return;
 
 	pattLen = pattLens[editor.editPattern];
-	note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + editor.cursor.ch];
+	note = &patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + cursor.ch];
 
-	if (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2)
+	if (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2)
 	{
 		note->vol = (uint8_t)config.volMacro[slot];
 	}
@@ -666,7 +667,7 @@
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -691,14 +692,14 @@
 	if (pattLen > 1)
 	{
 		for (int32_t i = pattLen-2; i >= pattPos; i--)
-			pattPtr[((i + 1) * MAX_VOICES) + editor.cursor.ch] = pattPtr[(i * MAX_VOICES) + editor.cursor.ch];
+			pattPtr[((i + 1) * MAX_VOICES) + cursor.ch] = pattPtr[(i * MAX_VOICES) + cursor.ch];
 	}
 
-	memset(&pattPtr[(pattPos * MAX_VOICES) + editor.cursor.ch], 0, sizeof (tonTyp));
+	memset(&pattPtr[(pattPos * MAX_VOICES) + cursor.ch], 0, sizeof (tonTyp));
 
 	killPatternIfUnused(nr);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -734,7 +735,7 @@
 		killPatternIfUnused(nr);
 	}
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -760,9 +761,9 @@
 			editor.pattPos = song.pattPos = pattPos;
 
 			for (int32_t i = pattPos; i < pattLen-1; i++)
-				pattPtr[(i * MAX_VOICES) + editor.cursor.ch] = pattPtr[((i + 1) * MAX_VOICES) + editor.cursor.ch];
+				pattPtr[(i * MAX_VOICES) + cursor.ch] = pattPtr[((i + 1) * MAX_VOICES) + cursor.ch];
 
-			memset(&pattPtr[((pattLen - 1) * MAX_VOICES) + editor.cursor.ch], 0, sizeof (tonTyp));
+			memset(&pattPtr[((pattLen - 1) * MAX_VOICES) + cursor.ch], 0, sizeof (tonTyp));
 		}
 	}
 	else
@@ -776,7 +777,7 @@
 
 	killPatternIfUnused(nr);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -824,7 +825,7 @@
 
 	killPatternIfUnused(nr);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -845,7 +846,7 @@
 			if (pattPtr == NULL)
 				return; // empty pattern
 
-			pattPtr += editor.cursor.ch;
+			pattPtr += cursor.ch;
 
 			pattLen = pattLens[editor.editPattern];
 			for (row = 0; row < pattLen; row++)
@@ -976,7 +977,7 @@
 			if (pattPtr == NULL)
 				return; // empty pattern
 
-			pattPtr += editor.cursor.ch;
+			pattPtr += cursor.ch;
 
 			pattLen = pattLens[editor.editPattern];
 			for (row = 0; row < pattLen; row++)
@@ -1094,7 +1095,7 @@
 		default: break;
 	}
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1401,7 +1402,7 @@
 	{
 		memset(trackCopyBuff, 0, MAX_PATT_LEN * sizeof (tonTyp));
 		for (i = 0; i < pattLen; i++)
-			copyNote(&pattPtr[(i * MAX_VOICES) + editor.cursor.ch], &trackCopyBuff[i]);
+			copyNote(&pattPtr[(i * MAX_VOICES) + cursor.ch], &trackCopyBuff[i]);
 
 		trkBufLen = pattLen;
 	}
@@ -1408,12 +1409,12 @@
 
 	pauseMusic();
 	for (i = 0; i < pattLen; i++)
-		pasteNote(&clearNote, &pattPtr[(i * MAX_VOICES) + editor.cursor.ch]);
+		pasteNote(&clearNote, &pattPtr[(i * MAX_VOICES) + cursor.ch]);
 	resumeMusic();
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1430,7 +1431,7 @@
 
 	memset(trackCopyBuff, 0, MAX_PATT_LEN * sizeof (tonTyp));
 	for (i = 0; i < pattLen; i++)
-		copyNote(&pattPtr[(i * MAX_VOICES) + editor.cursor.ch], &trackCopyBuff[i]);
+		copyNote(&pattPtr[(i * MAX_VOICES) + cursor.ch], &trackCopyBuff[i]);
 
 	trkBufLen = pattLen;
 }
@@ -1448,12 +1449,12 @@
 
 	pauseMusic();
 	for (i = 0; i < pattLen; i++)
-		pasteNote(&trackCopyBuff[i], &pattPtr[(i * MAX_VOICES) + editor.cursor.ch]);
+		pasteNote(&trackCopyBuff[i], &pattPtr[(i * MAX_VOICES) + cursor.ch]);
 	resumeMusic();
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1490,7 +1491,7 @@
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1514,7 +1515,7 @@
 
 	ptnBufLen = pattLen;
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void pastePattern(void)
@@ -1547,7 +1548,7 @@
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1590,7 +1591,7 @@
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1631,7 +1632,7 @@
 
 	pattLen = pattLens[editor.editPattern];
 
-	xpos = editor.cursor.ch;
+	xpos = cursor.ch;
 	ypos = editor.pattPos;
 
 	j = markXSize;
@@ -1657,7 +1658,7 @@
 
 	killPatternIfUnused(editor.editPattern);
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1702,7 +1703,7 @@
 	             editor.srcInstr, editor.curInstr);
 	resumeMusic();
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1713,12 +1714,12 @@
 
 	pauseMusic();
 	remapInstrXY(editor.editPattern,
-	             editor.cursor.ch, 0,
-	             editor.cursor.ch, pattLens[editor.editPattern] - 1,
+	             cursor.ch, 0,
+	             cursor.ch, pattLens[editor.editPattern] - 1,
 	             editor.srcInstr, editor.curInstr);
 	resumeMusic();
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1734,7 +1735,7 @@
 	             editor.srcInstr, editor.curInstr);
 	resumeMusic();
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1757,7 +1758,7 @@
 	}
 	resumeMusic();
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 	setSongModifiedFlag();
 }
 
@@ -1882,7 +1883,7 @@
 	pauseMusic();
 	for (uint16_t row = 0; row < pattLen; row++)
 	{
-		scaleNote(editor.editPattern, editor.cursor.ch, row, dVol);
+		scaleNote(editor.editPattern, cursor.ch, row, dVol);
 		dVol += dIPy;
 	}
 	resumeMusic();
--- a/src/ft2_events.c
+++ b/src/ft2_events.c
@@ -31,10 +31,11 @@
 #include "ft2_keyboard.h"
 #include "ft2_sample_ed.h"
 #include "ft2_sample_ed_features.h"
+#include "ft2_structs.h"
 
 #define CRASH_TEXT "Oh no!\nThe Fasttracker II clone has crashed...\n\nA backup .xm was hopefully " \
-                   "saved to the current module directory.\n\nPlease report this to 8bitbubsy " \
-                   "(IRC or olav.sorensen@live.no).\nTry to mention what you did before the crash happened."
+                   "saved to the current module directory.\n\nPlease report this bug if you can.\n" \
+                   "Try to mention what you did before the crash happened."
 
 static bool backupMadeAfterCrash;
 
@@ -112,7 +113,7 @@
 		midi.rescanDevicesFlag = false;
 
 		rescanMidiInputDevices();
-		if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
+		if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
 			drawMidiInputList();
 	}
 #endif
@@ -158,7 +159,7 @@
 	if (editor.diskOpReadDone)
 	{
 		editor.diskOpReadDone = false;
-		if (editor.ui.diskOpShown)
+		if (ui.diskOpShown)
 			diskOp_DrawDirectory();
 	}
 
@@ -165,8 +166,8 @@
 	handleLoadMusicEvents();
 
 	if (editor.samplingAudioFlag) handleSamplingUpdates();
-	if (editor.ui.setMouseBusy) mouseAnimOn();
-	if (editor.ui.setMouseIdle) mouseAnimOff();
+	if (ui.setMouseBusy) mouseAnimOn();
+	if (ui.setMouseIdle) mouseAnimOff();
 
 	if (editor.updateWindowTitle)
 	{
@@ -495,7 +496,7 @@
 		}
 		else if (event.type == SDL_QUIT)
 		{
-			if (editor.ui.sysReqShown)
+			if (ui.sysReqShown)
 				continue;
 
 			if (editor.editTextFlag)
--- a/src/ft2_gui.c
+++ b/src/ft2_gui.c
@@ -22,6 +22,7 @@
 #include "ft2_video.h"
 #include "ft2_tables.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 static void releaseMouseStates(void)
 {
@@ -35,9 +36,9 @@
 	mouse.buttonCounter = 0;
 	mouse.lastX = 0;
 	mouse.lastY = 0;
-	editor.ui.sampleDataOrLoopDrag = -1;
-	editor.ui.leftLoopPinMoving = false;
-	editor.ui.rightLoopPinMoving = false;
+	ui.sampleDataOrLoopDrag = -1;
+	ui.leftLoopPinMoving = false;
+	ui.rightLoopPinMoving = false;
 }
 
 void unstuckLastUsedGUIElement(void)
@@ -53,16 +54,16 @@
 		** sample data loop pins, and unstuck them if so
 		*/
 
-		if (editor.ui.leftLoopPinMoving)
+		if (ui.leftLoopPinMoving)
 		{
 			setLeftLoopPinState(false);
-			editor.ui.leftLoopPinMoving = false;
+			ui.leftLoopPinMoving = false;
 		}
 
-		if (editor.ui.rightLoopPinMoving)
+		if (ui.rightLoopPinMoving)
 		{
 			setRightLoopPinState(false);
-			editor.ui.rightLoopPinMoving = false;
+			ui.rightLoopPinMoving = false;
 		}
 
 		releaseMouseStates();
@@ -1052,36 +1053,36 @@
 
 void showTopLeftMainScreen(bool restoreScreens)
 {
-	editor.ui.diskOpShown = false;
-	editor.ui.sampleEditorExtShown = false;
-	editor.ui.instEditorExtShown = false;
-	editor.ui.transposeShown = false;
-	editor.ui.advEditShown = false;
-	editor.ui.wavRendererShown = false;
-	editor.ui.trimScreenShown = false;
+	ui.diskOpShown = false;
+	ui.sampleEditorExtShown = false;
+	ui.instEditorExtShown = false;
+	ui.transposeShown = false;
+	ui.advEditShown = false;
+	ui.wavRendererShown = false;
+	ui.trimScreenShown = false;
 
-	editor.ui.scopesShown = true;
+	ui.scopesShown = true;
 	if (restoreScreens)
 	{
-		switch (editor.ui.oldTopLeftScreen)
+		switch (ui.oldTopLeftScreen)
 		{
 			default: break;
-			case 1: editor.ui.diskOpShown = true; break;
-			case 2: editor.ui.sampleEditorExtShown = true; break;
-			case 3: editor.ui.instEditorExtShown = true; break;
-			case 4: editor.ui.transposeShown = true; break;
-			case 5: editor.ui.advEditShown = true; break;
-			case 6: editor.ui.wavRendererShown = true; break;
-			case 7: editor.ui.trimScreenShown = true; break;
+			case 1: ui.diskOpShown = true; break;
+			case 2: ui.sampleEditorExtShown = true; break;
+			case 3: ui.instEditorExtShown = true; break;
+			case 4: ui.transposeShown = true; break;
+			case 5: ui.advEditShown = true; break;
+			case 6: ui.wavRendererShown = true; break;
+			case 7: ui.trimScreenShown = true; break;
 		}
 
-		if (editor.ui.oldTopLeftScreen > 0)
-			editor.ui.scopesShown = false;
+		if (ui.oldTopLeftScreen > 0)
+			ui.scopesShown = false;
 	}
 
-	editor.ui.oldTopLeftScreen = 0;
+	ui.oldTopLeftScreen = 0;
 
-	if (editor.ui.diskOpShown)
+	if (ui.diskOpShown)
 	{
 		showDiskOpScreen();
 	}
@@ -1157,7 +1158,7 @@
 		textOutShadow(4, 80, PAL_FORGRND, PAL_DSKTOP2, "Global volume");
 		drawGlobalVol(song.globVol);
 
-		editor.ui.updatePosSections = true;
+		ui.updatePosSections = true;
 
 		textOutShadow(204, 80, PAL_FORGRND, PAL_DSKTOP2, "Time");
 		charOutShadow(250, 80, PAL_FORGRND, PAL_DSKTOP2, ':');
@@ -1165,14 +1166,14 @@
 
 		drawPlaybackTime();
 
-		     if (editor.ui.sampleEditorExtShown) drawSampleEditorExt();
-		else if (editor.ui.instEditorExtShown)   drawInstEditorExt();
-		else if (editor.ui.transposeShown)       drawTranspose();
-		else if (editor.ui.advEditShown)         drawAdvEdit();
-		else if (editor.ui.wavRendererShown)     drawWavRenderer();
-		else if (editor.ui.trimScreenShown)      drawTrimScreen();
+		     if (ui.sampleEditorExtShown) drawSampleEditorExt();
+		else if (ui.instEditorExtShown)   drawInstEditorExt();
+		else if (ui.transposeShown)       drawTranspose();
+		else if (ui.advEditShown)         drawAdvEdit();
+		else if (ui.wavRendererShown)     drawWavRenderer();
+		else if (ui.trimScreenShown)      drawTrimScreen();
 
-		if (editor.ui.scopesShown)
+		if (ui.scopesShown)
 			drawScopeFramework();
 	}
 }
@@ -1187,7 +1188,7 @@
 	hideWavRenderer();
 	hideTrimScreen();
 
-	editor.ui.scopesShown = false;
+	ui.scopesShown = false;
 
 	// position editor
 	hideScrollBar(SB_POS_ED);
@@ -1251,7 +1252,7 @@
 	showPushButton(PB_HELP);
 
 	// instrument switcher
-	editor.ui.instrSwitcherShown = true;
+	ui.instrSwitcherShown = true;
 	showInstrumentSwitcher();
 
 	// song name
@@ -1275,7 +1276,7 @@
 
 	// instrument switcher
 	hideInstrumentSwitcher();
-	editor.ui.instrSwitcherShown = false;
+	ui.instrSwitcherShown = false;
 
 	hideTextBox(TB_SONG_NAME);
 }
@@ -1284,13 +1285,13 @@
 
 void setOldTopLeftScreenFlag(void)
 {
-	     if (editor.ui.diskOpShown)          editor.ui.oldTopLeftScreen = 1;
-	else if (editor.ui.sampleEditorExtShown) editor.ui.oldTopLeftScreen = 2;
-	else if (editor.ui.instEditorExtShown)   editor.ui.oldTopLeftScreen = 3;
-	else if (editor.ui.transposeShown)       editor.ui.oldTopLeftScreen = 4;
-	else if (editor.ui.advEditShown)         editor.ui.oldTopLeftScreen = 5;
-	else if (editor.ui.wavRendererShown)     editor.ui.oldTopLeftScreen = 6;
-	else if (editor.ui.trimScreenShown)      editor.ui.oldTopLeftScreen = 7;
+	     if (ui.diskOpShown)          ui.oldTopLeftScreen = 1;
+	else if (ui.sampleEditorExtShown) ui.oldTopLeftScreen = 2;
+	else if (ui.instEditorExtShown)   ui.oldTopLeftScreen = 3;
+	else if (ui.transposeShown)       ui.oldTopLeftScreen = 4;
+	else if (ui.advEditShown)         ui.oldTopLeftScreen = 5;
+	else if (ui.wavRendererShown)     ui.oldTopLeftScreen = 6;
+	else if (ui.trimScreenShown)      ui.oldTopLeftScreen = 7;
 }
 
 void hideTopLeftScreen(void)
@@ -1315,33 +1316,33 @@
 	hideAboutScreen();
 	hideHelpScreen();
 
-	editor.ui.instrSwitcherShown = false;
-	editor.ui.scopesShown = false;
+	ui.instrSwitcherShown = false;
+	ui.scopesShown = false;
 }
 
 void showTopScreen(bool restoreScreens)
 {
-	editor.ui.scopesShown = false;
+	ui.scopesShown = false;
 
-	if (editor.ui.aboutScreenShown)
+	if (ui.aboutScreenShown)
 	{
 		showAboutScreen();
 	}
-	else if (editor.ui.configScreenShown)
+	else if (ui.configScreenShown)
 	{
 		showConfigScreen();
 	}
-	else if (editor.ui.helpScreenShown)
+	else if (ui.helpScreenShown)
 	{
 		showHelpScreen();
 	}
-	else if (editor.ui.nibblesShown)
+	else if (ui.nibblesShown)
 	{
 		showNibblesScreen();
 	}
 	else
 	{
-		showTopLeftMainScreen(restoreScreens); // updates editor.ui.scopesShown
+		showTopLeftMainScreen(restoreScreens); // updates ui.scopesShown
 		showTopRightMainScreen();
 	}
 }
@@ -1348,11 +1349,11 @@
 
 void showBottomScreen(void)
 {
-	if (editor.ui.extended || editor.ui.patternEditorShown)
+	if (ui.extended || ui.patternEditorShown)
 		showPatternEditor();
-	else if (editor.ui.instEditorShown)
+	else if (ui.instEditorShown)
 		showInstEditor();
-	else if (editor.ui.sampleEditorShown)
+	else if (ui.sampleEditorShown)
 		showSampleEditor();
 }
 
@@ -1363,5 +1364,5 @@
 	showTopScreen(false); // false = don't restore screens
 	showPatternEditor();
 
-	editor.ui.updatePosSections = true;
+	ui.updatePosSections = true;
 }
--- a/src/ft2_header.h
+++ b/src/ft2_header.h
@@ -12,7 +12,7 @@
 #endif
 #include "ft2_replayer.h"
 
-#define PROG_VER_STR "1.22"
+#define PROG_VER_STR "1.23"
 
 // do NOT change these! It will only mess things up...
 
@@ -75,75 +75,3 @@
 	(((uint32_t)((value) & 0x00FF0000)) >>  8) | \
 	(((uint32_t)((value) & 0xFF000000)) >> 24)   \
 )
-
-struct cpu_t
-{
-	bool hasSSE, hasSSE2;
-} cpu;
-
-struct editor_t
-{
-	struct ui_t
-	{
-		volatile bool setMouseBusy, setMouseIdle;
-		bool sysReqEnterPressed;
-		char fullscreenButtonText[24];
-
-		// all screens
-		bool extended, sysReqShown;
-
-		// top screens
-		bool instrSwitcherShown, aboutScreenShown, helpScreenShown, configScreenShown;
-		bool scopesShown, diskOpShown, nibblesShown, transposeShown, instEditorExtShown;
-		bool sampleEditorExtShown, advEditShown, wavRendererShown, trimScreenShown;
-		bool drawBPMFlag, drawSpeedFlag, drawGlobVolFlag, drawPosEdFlag, drawPattNumLenFlag;
-		bool updatePosSections, updatePosEdScrollBar;
-		uint8_t oldTopLeftScreen;
-
-		// bottom screens
-		bool patternEditorShown, instEditorShown, sampleEditorShown, pattChanScrollShown;
-		bool leftLoopPinMoving, rightLoopPinMoving;
-		bool drawReplayerPianoFlag, drawPianoFlag, updatePatternEditor;
-		uint8_t channelOffset, numChannelsShown, maxVisibleChannels;
-		uint16_t patternChannelWidth;
-		int32_t sampleDataOrLoopDrag;
-
-		// backup flag for when entering/exiting extended pattern editor (TODO: this is lame and shouldn't be hardcoded)
-		bool _aboutScreenShown, _helpScreenShown, _configScreenShown, _diskOpShown;
-		bool _nibblesShown, _transposeShown, _instEditorShown;
-		bool _instEditorExtShown, _sampleEditorExtShown, _patternEditorShown;
-		bool _sampleEditorShown, _advEditShown, _wavRendererShown, _trimScreenShown;
-		// -------------------------------------------------------------------------
-	} ui;
-
-	struct cursor_t
-	{
-		uint8_t ch;
-		int8_t object;
-	} cursor;
-
-	UNICHAR binaryPathU[PATH_MAX + 2];
-	UNICHAR *tmpFilenameU, *tmpInstrFilenameU; // used by saving/loading threads
-	UNICHAR *configFileLocation, *audioDevConfigFileLocation, *midiConfigFileLocation;
-
-	volatile bool mainLoopOngoing;
-	volatile bool busy, scopeThreadMutex, programRunning, wavIsRendering, wavReachedEndFlag;
-	volatile bool updateCurSmp, updateCurInstr, diskOpReadDir, diskOpReadDone, updateWindowTitle;
-	volatile uint8_t loadMusicEvent;
-	volatile FILE *wavRendererFileHandle;
-
-	bool autoPlayOnDrop, trimThreadWasDone, throwExit, editTextFlag;
-	bool copyMaskEnable, diskOpReadOnOpen, samplingAudioFlag, editSampleFlag;
-	bool instrBankSwapped, chnMode[MAX_VOICES], NI_Play;
-
-	uint8_t curPlayInstr, curPlaySmp, curSmpChannel, currPanEnvPoint, currVolEnvPoint;
-	uint8_t copyMask[5], pasteMask[5], transpMask[5], smpEd_NoteNr, instrBankOffset, sampleBankOffset;
-	uint8_t srcInstr, curInstr, srcSmp, curSmp, currHelpScreen, currConfigScreen, textCursorBlinkCounter;
-	uint8_t keyOnTab[MAX_VOICES], ID_Add, curOctave;
-	uint8_t sampleSaveMode, moduleSaveMode, ptnJumpPos[4];
-	int16_t globalVol, songPos, pattPos;
-	uint16_t tmpPattern, editPattern, speed, tempo, timer, ptnCursorY;
-	int32_t keyOffNr, keyOffTime[MAX_VOICES];
-	uint32_t framesPassed, wavRendererTime;
-	double dPerfFreq, dPerfFreqMulMicro, dPerfFreqMulMs;
-} editor;
--- a/src/ft2_help.c
+++ b/src/ft2_help.c
@@ -11,6 +11,7 @@
 #include "ft2_video.h"
 #include "ft2_pattern_ed.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 #include "helpdata/ft2_help_data.h"
 
 typedef struct
@@ -386,11 +387,11 @@
 {
 	uint16_t tmpID;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
-	editor.ui.helpScreenShown = true;
+	ui.helpScreenShown = true;
 
 	drawFramework(0,   0, 128, 173, FRAMEWORK_TYPE1);
 	drawFramework(128, 0, 504, 173, FRAMEWORK_TYPE1);
@@ -437,7 +438,7 @@
 	hideRadioButtonGroup(RB_GROUP_HELP);
 	hideScrollBar(SB_HELP_SCROLL);
 
-	editor.ui.helpScreenShown = false;
+	ui.helpScreenShown = false;
 }
 
 void exitHelpScreen(void)
--- a/src/ft2_inst_ed.c
+++ b/src/ft2_inst_ed.c
@@ -21,6 +21,7 @@
 #include "ft2_module_loader.h"
 #include "ft2_tables.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 #ifdef _MSC_VER
 #pragma pack(push)
@@ -339,15 +340,15 @@
 
 void updateNewSample(void)
 {
-	if (editor.ui.instrSwitcherShown)
+	if (ui.instrSwitcherShown)
 		updateInstrumentSwitcher();
 
 	updateSampleEditorSample();
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		updateSampleEditor();
 
-	if (editor.ui.instEditorShown || editor.ui.instEditorExtShown)
+	if (ui.instEditorShown || ui.instEditorExtShown)
 		updateInstEditor();
 }
 
@@ -355,7 +356,7 @@
 {
 	updateTextBoxPointers();
 
-	if (editor.ui.instrSwitcherShown)
+	if (ui.instrSwitcherShown)
 		updateInstrumentSwitcher();
 
 	editor.currVolEnvPoint = 0;
@@ -363,13 +364,13 @@
 
 	updateSampleEditorSample();
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		updateSampleEditor();
 
-	if (editor.ui.instEditorShown || editor.ui.instEditorExtShown)
+	if (ui.instEditorShown || ui.instEditorExtShown)
 		updateInstEditor();
 
-	if (editor.ui.advEditShown)
+	if (ui.advEditShown)
 		updateAdvEdit();
 }
 
@@ -1604,7 +1605,7 @@
 	uint8_t key, note, octave;
 	int32_t mx, my, quotient, remainder;
 
-	if (!editor.ui.instEditorShown)
+	if (!ui.instEditorShown)
 		return false; // area not clicked
 
 	if (editor.curInstr == 0 || instr[editor.curInstr] == NULL)
@@ -2024,7 +2025,7 @@
 
 void hideInstEditor(void)
 {
-	editor.ui.instEditorShown = false;
+	ui.instEditorShown = false;
 
 	hideScrollBar(SB_INST_VOL);
 	hideScrollBar(SB_INST_PAN);
@@ -2110,7 +2111,7 @@
 		s = &ins->samp[editor.curSmp];
 
 	// update instrument editor extension
-	if (editor.ui.instEditorExtShown)
+	if (ui.instEditorExtShown)
 	{
 		checkBoxes[CB_INST_EXT_MIDI].checked = ins->midiOn ? true : false;
 		checkBoxes[CB_INST_EXT_MUTE].checked = ins->mute ? true : false;
@@ -2127,7 +2128,7 @@
 		drawMIDIBend();
 	}
 
-	if (!editor.ui.instEditorShown)
+	if (!ui.instEditorShown)
 		return;
 
 	drawVolEnvSus();
@@ -2197,12 +2198,12 @@
 
 void showInstEditor(void)
 {
-	if (editor.ui.extended) exitPatternEditorExtended();
-	if (editor.ui.sampleEditorShown) hideSampleEditor();
-	if (editor.ui.sampleEditorExtShown) hideSampleEditorExt();
+	if (ui.extended) exitPatternEditorExtended();
+	if (ui.sampleEditorShown) hideSampleEditor();
+	if (ui.sampleEditorExtShown) hideSampleEditorExt();
 
 	hidePatternEditor();
-	editor.ui.instEditorShown = true;
+	ui.instEditorShown = true;
 
 	drawFramework(0,   173, 438,  87, FRAMEWORK_TYPE1);
 	drawFramework(0,   260, 438,  87, FRAMEWORK_TYPE1);
@@ -2315,10 +2316,10 @@
 
 void toggleInstEditor(void)
 {
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		hideSampleEditor();
 
-	if (editor.ui.instEditorShown)
+	if (ui.instEditorShown)
 	{
 		exitInstEditor();
 	}
@@ -2335,7 +2336,7 @@
 	int32_t x, y, mx, my, minX, maxX;
 	instrTyp *ins;
 
-	if (!editor.ui.instEditorShown || editor.curInstr == 0 || instr[editor.curInstr] == NULL)
+	if (!ui.instEditorShown || editor.curInstr == 0 || instr[editor.curInstr] == NULL)
 		return false;
 
 	ins = instr[editor.curInstr];
@@ -2434,7 +2435,7 @@
 	int32_t x, y, mx, my, minX, maxX;
 	instrTyp *ins;
 
-	if (!editor.ui.instEditorShown || editor.curInstr == 0 || instr[editor.curInstr] == NULL)
+	if (!ui.instEditorShown || editor.curInstr == 0 || instr[editor.curInstr] == NULL)
 		return false;
 
 	ins = instr[editor.curInstr];
@@ -2606,14 +2607,14 @@
 
 void showInstEditorExt(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
 	showTopScreen(false);
 
-	editor.ui.instEditorExtShown = true;
-	editor.ui.scopesShown = false;
+	ui.instEditorExtShown = true;
+	ui.scopesShown = false;
 	drawInstEditorExt();
 }
 
@@ -2631,14 +2632,14 @@
 	hidePushButton(PB_INST_EXT_MIDI_BEND_DOWN);
 	hidePushButton(PB_INST_EXT_MIDI_BEND_UP);
 
-	editor.ui.instEditorExtShown = false;
-	editor.ui.scopesShown = true;
+	ui.instEditorExtShown = false;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
 void toggleInstEditorExt(void)
 {
-	if (editor.ui.instEditorExtShown)
+	if (ui.instEditorExtShown)
 		hideInstEditorExt();
 	else
 		showInstEditorExt();
@@ -2686,7 +2687,7 @@
 				editor.srcInstr = newEntry;
 				updateInstrumentSwitcher();
 
-				if (editor.ui.advEditShown)
+				if (ui.advEditShown)
 					updateAdvEdit();
 			}
 
@@ -2711,8 +2712,8 @@
 				updateInstrumentSwitcher();
 				updateSampleEditorSample();
 
-				     if (editor.ui.sampleEditorShown) updateSampleEditor();
-				else if (editor.ui.instEditorShown)   updateInstEditor();
+				     if (ui.sampleEditorShown) updateSampleEditor();
+				else if (ui.instEditorShown)   updateInstEditor();
 			}
 
 			return true;
@@ -2763,7 +2764,7 @@
 				editor.srcInstr = newEntry;
 				updateInstrumentSwitcher();
 
-				if (editor.ui.advEditShown)
+				if (ui.advEditShown)
 					updateAdvEdit();
 			}
 
@@ -2805,7 +2806,7 @@
 				editor.srcInstr = newEntry;
 				updateInstrumentSwitcher();
 
-				if (editor.ui.advEditShown)
+				if (ui.advEditShown)
 					updateAdvEdit();
 			}
 
@@ -2836,10 +2837,10 @@
 
 bool testInstrSwitcherMouseDown(void)
 {
-	if (!editor.ui.instrSwitcherShown)
+	if (!ui.instrSwitcherShown)
 		return false;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 		return testInstrSwitcherExtended();
 	else
 		return testInstrSwitcherNormal();
--- a/src/ft2_keyboard.c
+++ b/src/ft2_keyboard.c
@@ -22,9 +22,9 @@
 #include "ft2_audio.h"
 #include "ft2_trim.h"
 #include "ft2_sample_ed_features.h"
+#include "ft2_structs.h"
 
-static void handleKeys(SDL_Keycode keycode, SDL_Scancode scanKey);
-static bool checkModifiedKeys(SDL_Keycode keycode);
+keyb_t keyb; // globalized
 
 static const uint8_t scancodeKey2Note[52] = // keys (USB usage page standard) to FT2 notes look-up table
 {
@@ -37,6 +37,9 @@
 	0x00, 0x0D, 0x0F, 0x11
 };
 
+static void handleKeys(SDL_Keycode keycode, SDL_Scancode scanKey);
+static bool checkModifiedKeys(SDL_Keycode keycode);
+
 int8_t scancodeKeyToNote(SDL_Scancode scancode)
 {
 	int8_t note;
@@ -76,11 +79,12 @@
 {
 	(void)keycode;
 
-	if (editor.editTextFlag || editor.ui.sysReqShown)
+	if (editor.editTextFlag || ui.sysReqShown)
 		return; // kludge: don't handle key up! (XXX: Is this hack really needed anymore?)
 
 	/* Yet another kludge for not leaving a ghost key-up event after an inputBox/okBox
-	** was exited with a key press. They could be picked up as note release events. */
+	** was exited with a key press. They could be picked up as note release events.
+	*/
 	if (keyb.ignoreCurrKeyUp)
 	{
 		keyb.ignoreCurrKeyUp = false;
@@ -87,7 +91,7 @@
 		return;
 	}
 
-	if (editor.cursor.object == CURSOR_NOTE && !keyb.keyModifierDown)
+	if (cursor.object == CURSOR_NOTE && !keyb.keyModifierDown)
 		testNoteKeysRelease(scancode);
 
 	if (scancode == SDL_SCANCODE_KP_PLUS)
@@ -105,12 +109,12 @@
 	if (mouse.mode != MOUSE_MODE_NORMAL)
 		setMouseMode(MOUSE_MODE_NORMAL);
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 	{
 		if (keycode == SDLK_RETURN)
-			editor.ui.sysReqEnterPressed = true;
+			ui.sysReqEnterPressed = true;
 		else if (keycode == SDLK_ESCAPE)
-			editor.ui.sysReqShown = false;
+			ui.sysReqShown = false;
 
 		return;
 	}
@@ -161,7 +165,6 @@
 
 static void handleKeys(SDL_Keycode keycode, SDL_Scancode scanKey)
 {
-	bool audioWasntLocked;
 	uint16_t pattLen;
 
 	// if we're holding numpad plus but not pressing bank keys, don't check any other key
@@ -308,9 +311,9 @@
 					editor.ID_Add++;
 			}
 
-			if (!editor.ui.nibblesShown     && !editor.ui.configScreenShown &&
-				!editor.ui.aboutScreenShown && !editor.ui.diskOpShown       &&
-				!editor.ui.helpScreenShown  && !editor.ui.extended)
+			if (!ui.nibblesShown     && !ui.configScreenShown &&
+				!ui.aboutScreenShown && !ui.diskOpShown       &&
+				!ui.helpScreenShown  && !ui.extended)
 			{
 				drawIDAdd();
 			}
@@ -320,7 +323,7 @@
 		default: break;
 	}
 
-	// no normal key (keycode) pressed (XXX: shouldn't happen? Whatever...)
+	// no normal key (keycode) pressed (XXX: shouldn't happen..?)
 	if (keycode == SDLK_UNKNOWN)
 		return;
 
@@ -331,7 +334,7 @@
 
 		case SDLK_DELETE: // non-FT2 addition
 		{
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				sampCut();
 		}
 		break;
@@ -345,18 +348,19 @@
 				if (!allocatePattern(editor.editPattern))
 					break;
 
-				patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + editor.cursor.ch].ton = 97;
+				patt[editor.editPattern][(editor.pattPos * MAX_VOICES) + cursor.ch].ton = 97;
 
 				pattLen = pattLens[editor.editPattern];
 				if (playMode == PLAYMODE_EDIT && pattLen >= 1)
 					setPos(-1, (editor.pattPos + editor.ID_Add) % pattLen, true);
 
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 				setSongModifiedFlag();
 			}
 		}
 		break;
 
+		// This is maybe not ideal to implement...
 		//case SDLK_PRINTSCREEN: togglePatternEditorExtended(); break;
 
 		// EDIT/PLAY KEYS
@@ -382,7 +386,7 @@
 				lockMixerCallback();
 				memset(editor.keyOnTab, 0, sizeof (editor.keyOnTab));
 				playMode = PLAYMODE_EDIT;
-				editor.ui.updatePosSections = true; // for updating mode text
+				ui.updatePosSections = true; // for updating mode text
 				unlockMixerCallback();
 			}
 			else
@@ -482,7 +486,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			unlockAudio();
@@ -500,7 +504,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			unlockAudio();
@@ -518,7 +522,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			unlockAudio();
@@ -536,7 +540,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			unlockAudio();
@@ -556,7 +560,7 @@
 
 		case SDLK_BACKSPACE:
 		{
-			     if (editor.ui.diskOpShown) diskOpGoParent();
+			     if (ui.diskOpShown) diskOpGoParent();
 			else if (keyb.leftShiftPressed) deletePatternLine();
 			else                            deletePatternNote();
 		}
@@ -597,7 +601,7 @@
 
 		case SDLK_PAGEUP:
 		{
-			audioWasntLocked = !audio.locked;
+			const bool audioWasntLocked = !audio.locked;
 			if (audioWasntLocked)
 				lockAudio();
 
@@ -609,7 +613,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			if (audioWasntLocked)
@@ -619,7 +623,7 @@
 
 		case SDLK_PAGEDOWN:
 		{
-			audioWasntLocked = !audio.locked;
+			const bool audioWasntLocked = !audio.locked;
 			if (audioWasntLocked)
 				lockAudio();
 
@@ -631,7 +635,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			if (audioWasntLocked)
@@ -641,7 +645,7 @@
 
 		case SDLK_HOME:
 		{
-			audioWasntLocked = !audio.locked;
+			const bool audioWasntLocked = !audio.locked;
 			if (audioWasntLocked)
 				lockAudio();
 
@@ -649,7 +653,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			if (audioWasntLocked)
@@ -659,7 +663,7 @@
 
 		case SDLK_END:
 		{
-			audioWasntLocked = !audio.locked;
+			const bool audioWasntLocked = !audio.locked;
 			if (audioWasntLocked)
 				lockAudio();
 
@@ -667,7 +671,7 @@
 			if (!songPlaying)
 			{
 				editor.pattPos = (uint8_t)song.pattPos;
-				editor.ui.updatePatternEditor = true;
+				ui.updatePatternEditor = true;
 			}
 
 			if (audioWasntLocked)
@@ -753,7 +757,7 @@
 		case SDLK_a:
 			if (keyb.leftCtrlPressed || keyb.leftCommandPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					rangeAll();
 				else
 					showAdvEdit();
@@ -762,7 +766,7 @@
 			}
 			else if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					rangeAll();
 				else
 					jumpToChannel(8);
@@ -774,7 +778,7 @@
 		case SDLK_b:
 			if (keyb.leftCtrlPressed)
 			{
-				if (!editor.ui.aboutScreenShown)
+				if (!ui.aboutScreenShown)
 					showAboutScreen();
 
 				return true;
@@ -784,7 +788,7 @@
 		case SDLK_c:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 				{
 					sampCopy();
 				}
@@ -791,12 +795,12 @@
 				else
 				{
 					// mark current track (non-FT2 feature)
-					pattMark.markX1 = editor.cursor.ch;
+					pattMark.markX1 = cursor.ch;
 					pattMark.markX2 = pattMark.markX1;
 					pattMark.markY1 = 0;
 					pattMark.markY2 = pattLens[editor.editPattern];
 
-					editor.ui.updatePatternEditor = true;
+					ui.updatePatternEditor = true;
 				}
 
 				return true;
@@ -803,7 +807,7 @@
 			}
 			else if (keyb.leftCtrlPressed || keyb.leftCommandPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					sampCopy();
 				else
 					showConfigScreen();
@@ -820,7 +824,7 @@
 			}
 			else if (keyb.leftCtrlPressed)
 			{
-				if (!editor.ui.diskOpShown)
+				if (!ui.diskOpShown)
 					showDiskOpScreen();
 
 				return true;
@@ -835,10 +839,10 @@
 			}
 			else if (keyb.leftCtrlPressed)
 			{
-				if (editor.ui.aboutScreenShown)  hideAboutScreen();
-				if (editor.ui.configScreenShown) hideConfigScreen();
-				if (editor.ui.helpScreenShown)   hideHelpScreen();
-				if (editor.ui.nibblesShown)      hideNibblesScreen();
+				if (ui.aboutScreenShown)  hideAboutScreen();
+				if (ui.configScreenShown) hideConfigScreen();
+				if (ui.helpScreenShown)   hideHelpScreen();
+				if (ui.nibblesShown)      hideNibblesScreen();
 
 				showSampleEditorExt();
 				return true;
@@ -860,7 +864,7 @@
 				video.showFPSCounter ^= 1;
 				if (!video.showFPSCounter)
 				{
-					if (editor.ui.extended) // yet another kludge...
+					if (ui.extended) // yet another kludge...
 						exitPatternEditorExtended();
 
 					showTopScreen(false);
@@ -926,10 +930,10 @@
 		case SDLK_m:
 			if (keyb.leftCtrlPressed)
 			{
-				if (editor.ui.aboutScreenShown)  hideAboutScreen();
-				if (editor.ui.configScreenShown) hideConfigScreen();
-				if (editor.ui.helpScreenShown)   hideHelpScreen();
-				if (editor.ui.nibblesShown)      hideNibblesScreen();
+				if (ui.aboutScreenShown)  hideAboutScreen();
+				if (ui.configScreenShown) hideConfigScreen();
+				if (ui.helpScreenShown)   hideHelpScreen();
+				if (ui.nibblesShown)      hideNibblesScreen();
 
 				showInstEditorExt();
 
@@ -948,11 +952,11 @@
 		case SDLK_p:
 			if (keyb.leftCtrlPressed)
 			{
-				if (!editor.ui.patternEditorShown)
+				if (!ui.patternEditorShown)
 				{
-					if (editor.ui.sampleEditorShown)    hideSampleEditor();
-					if (editor.ui.sampleEditorExtShown) hideSampleEditorExt();
-					if (editor.ui.instEditorShown)      hideInstEditor();
+					if (ui.sampleEditorShown)    hideSampleEditor();
+					if (ui.sampleEditorExtShown) hideSampleEditorExt();
+					if (ui.instEditorShown)      hideInstEditor();
 
 					showPatternEditor();
 				}
@@ -972,7 +976,7 @@
 		case SDLK_r:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					sampCrop();
 				else
 					jumpToChannel(3);
@@ -989,7 +993,7 @@
 		case SDLK_s:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					showRange();
 				else
 					jumpToChannel(9);
@@ -1027,9 +1031,9 @@
 		case SDLK_v:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					sampPaste();
-				else if (!editor.ui.instEditorShown)
+				else if (!ui.instEditorShown)
 					scaleFadeVolumeBlock();
 
 				return true;
@@ -1036,9 +1040,9 @@
 			}
 			else if (keyb.leftCtrlPressed || keyb.leftCommandPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					sampPaste();
-				else if (!editor.ui.instEditorShown)
+				else if (!ui.instEditorShown)
 					scaleFadeVolumePattern();
 
 				return true;
@@ -1045,7 +1049,7 @@
 			}
 			else if (keyb.leftShiftPressed)
 			{
-				if (!editor.ui.sampleEditorShown && !editor.ui.instEditorShown)
+				if (!ui.sampleEditorShown && !ui.instEditorShown)
 				{
 					keyb.ignoreTextEditKey = true; // ignore key from first frame
 					scaleFadeVolumeTrack();
@@ -1066,7 +1070,7 @@
 		case SDLK_x:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					sampCut();
 
 				return true;
@@ -1073,22 +1077,22 @@
 			}
 			else if (keyb.leftCtrlPressed || keyb.leftCommandPressed)
 			{
-				if (editor.ui.extended)
+				if (ui.extended)
 					exitPatternEditorExtended();
 
-				if (editor.ui.sampleEditorShown)    hideSampleEditor();
-				if (editor.ui.sampleEditorExtShown) hideSampleEditorExt();
-				if (editor.ui.instEditorShown)      hideInstEditor();
-				if (editor.ui.instEditorExtShown)   hideInstEditorExt();
-				if (editor.ui.transposeShown)       hideTranspose();
-				if (editor.ui.aboutScreenShown)     hideAboutScreen();
-				if (editor.ui.configScreenShown)    hideConfigScreen();
-				if (editor.ui.helpScreenShown)      hideHelpScreen();
-				if (editor.ui.nibblesShown)         hideNibblesScreen();
-				if (editor.ui.diskOpShown)          hideDiskOpScreen();
-				if (editor.ui.advEditShown)         hideAdvEdit();
-				if (editor.ui.wavRendererShown)     hideWavRenderer();
-				if (editor.ui.trimScreenShown)      hideTrimScreen();
+				if (ui.sampleEditorShown)    hideSampleEditor();
+				if (ui.sampleEditorExtShown) hideSampleEditorExt();
+				if (ui.instEditorShown)      hideInstEditor();
+				if (ui.instEditorExtShown)   hideInstEditorExt();
+				if (ui.transposeShown)       hideTranspose();
+				if (ui.aboutScreenShown)     hideAboutScreen();
+				if (ui.configScreenShown)    hideConfigScreen();
+				if (ui.helpScreenShown)      hideHelpScreen();
+				if (ui.nibblesShown)         hideNibblesScreen();
+				if (ui.diskOpShown)          hideDiskOpScreen();
+				if (ui.advEditShown)         hideAdvEdit();
+				if (ui.wavRendererShown)     hideWavRenderer();
+				if (ui.trimScreenShown)      hideTrimScreen();
 
 				showTopScreen(false);
 				showBottomScreen();
@@ -1110,7 +1114,7 @@
 		case SDLK_z:
 			if (keyb.leftAltPressed)
 			{
-				if (editor.ui.sampleEditorShown)
+				if (ui.sampleEditorShown)
 					zoomOut();
 
 				return true;
--- a/src/ft2_keyboard.h
+++ b/src/ft2_keyboard.h
@@ -4,13 +4,15 @@
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 
-struct keyb_t
+typedef struct keyb_t
 {
 	uint8_t keyRepeat, keyPressed;
 	bool ignoreCurrKeyUp, ignoreTextEditKey, numPadPlusPressed;
 	bool keyModifierDown, commandPressed, leftCommandPressed;
 	bool leftShiftPressed, leftCtrlPressed, ctrlPressed, leftAltPressed;
-} keyb;
+} keyb_t;
+
+extern keyb_t keyb; // ft2_keyboard.c
 
 int8_t scancodeKeyToNote(SDL_Scancode scancode);
 void keyUpHandler(SDL_Scancode scancode, SDL_Keycode keycode);
--- a/src/ft2_main.c
+++ b/src/ft2_main.c
@@ -32,6 +32,7 @@
 #include "ft2_midi.h"
 #include "ft2_events.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 #ifdef HAS_MIDI
 static SDL_Thread *initMidiThread;
@@ -77,8 +78,7 @@
 #ifdef _WIN32
 		showErrorMsgBox("SDL2.dll is not the expected version, the program will terminate.\n\n" \
 		                "Loaded dll version: %d.%d.%d\n" \
-		                "Required (compiled with) version: %d.%d.%d\n\n" \
-		                "The needed SDL2.dll is located in the .zip from 16-bits.org/ft2.php\n",
+		                "Required (compiled with) version: %d.%d.%d\n\n",
 		                sdlVer.major, sdlVer.minor, sdlVer.patch,
 		                SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL);
 #else
@@ -277,7 +277,7 @@
 	audio.locked = true;
 	audio.rescanAudioDevicesSupported = true;
 
-	strcpy(editor.ui.fullscreenButtonText, "Go fullscreen");
+	strcpy(ui.fullscreenButtonText, "Go fullscreen");
 
 	// set non-zero values
 
@@ -284,7 +284,7 @@
 	editor.moduleSaveMode = MOD_SAVE_MODE_XM;
 	editor.sampleSaveMode = SMP_SAVE_MODE_WAV;
 
-	editor.ui.sampleDataOrLoopDrag = -1;
+	ui.sampleDataOrLoopDrag = -1;
 
 	mouse.lastUsedObjectID = OBJECT_ID_NONE;
 
--- a/src/ft2_midi.c
+++ b/src/ft2_midi.c
@@ -15,6 +15,7 @@
 #include "ft2_audio.h"
 #include "ft2_mouse.h"
 #include "ft2_pattern_ed.h"
+#include "ft2_structs.h"
 #include "rtmidi/rtmidi_c.h"
 
 // hide POSIX warnings
@@ -22,8 +23,10 @@
 #pragma warning(disable: 4996)
 #endif
 
-// MIDI INPUT ONLY!
+// This implements MIDI input only!
 
+midi_t midi; // globalized
+
 static volatile bool midiDeviceOpened;
 static bool recMIDIValidChn = true;
 static RtMidiPtr midiDev;
@@ -251,7 +254,7 @@
 		if (!allocatePattern(nr))
 			return;
 
-		note = &patt[nr][(editor.pattPos * MAX_VOICES) + editor.cursor.ch];
+		note = &patt[nr][(editor.pattPos * MAX_VOICES) + cursor.ch];
 		if (note->effTyp != effTyp || note->eff != effData)
 			setSongModifiedFlag();
 
@@ -460,7 +463,7 @@
 {
 	(void)pos;
 
-	if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
+	if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
 		drawMidiInputList();
 }
 
@@ -468,7 +471,7 @@
 {
 	int32_t mx, my, deviceNum;
 
-	if (!editor.ui.configScreenShown || editor.currConfigScreen != CONFIG_SCREEN_MIDI_INPUT)
+	if (!ui.configScreenShown || editor.currConfigScreen != CONFIG_SCREEN_MIDI_INPUT)
 		return false; // we didn't click the area
 
 	if (!midi.initThreadDone)
--- a/src/ft2_midi.h
+++ b/src/ft2_midi.h
@@ -9,7 +9,7 @@
 #define MIDI_INPUT_SELECTOR_BOX_WIDTH 247
 #define MAX_MIDI_DEVICES 99
 
-struct midi_t
+typedef struct midi_t
 {
 	char *inputDeviceName, *inputDeviceNames[MAX_MIDI_DEVICES];
 	volatile bool closeMidiOnExit, initThreadDone;
@@ -17,7 +17,9 @@
 	bool enable, rescanDevicesFlag;
 	int16_t currMIDIVibDepth, currMIDIPitch;
 	int32_t numInputDevices;
-} midi;
+} midi_t;
+
+extern midi_t midi; // ft2_midi.c
 
 void closeMidiInDevice(void);
 void freeMidiIn(void);
--- a/src/ft2_module_loader.c
+++ b/src/ft2_module_loader.c
@@ -25,6 +25,7 @@
 #include "ft2_events.h"
 #include "ft2_video.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 /* This is a *HUGE* mess!
 ** I hope you never have to modify it, and you probably shouldn't either.
@@ -2461,7 +2462,7 @@
 	diskOpSetFilename(DISKOP_ITEM_MODULE, editor.tmpFilenameU);
 
 	// redraw top part of screen
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		togglePatternEditorExtended(); // exit
 		togglePatternEditorExtended(); // re-enter (force redrawing)
@@ -2476,7 +2477,7 @@
 	updateSampleEditorSample();
 	showBottomScreen(); // redraw bottom screen (also redraws pattern editor)
 
-	if (editor.ui.instEditorShown)
+	if (ui.instEditorShown)
 		drawPiano(NULL); // redraw piano now (since if playing = wait for next tick update)
 
 	removeSongModifiedFlag();
@@ -2549,7 +2550,7 @@
 	int32_t fullPathLen, filesize;
 	UNICHAR *fullPathU;
 
-	if (editor.ui.sysReqShown || fullPathUTF8 == NULL)
+	if (ui.sysReqShown || fullPathUTF8 == NULL)
 		return;
 
 	fullPathLen = (int32_t)strlen(fullPathUTF8);
--- a/src/ft2_module_saver.c
+++ b/src/ft2_module_saver.c
@@ -12,6 +12,7 @@
 #include "ft2_sample_ed.h"
 #include "ft2_module_loader.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 /* These savers are directly ported, so they should act identical to FT2
 ** except for some very minor changes.
--- a/src/ft2_mouse.c
+++ b/src/ft2_mouse.c
@@ -19,23 +19,26 @@
 #include "ft2_audioselector.h"
 #include "ft2_midi.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 #define NUM_CURSORS 6
 
+mouse_t mouse; // globalized
+
 static bool mouseBusyGfxBackwards;
 static int16_t mouseShape;
 static int32_t mouseModeGfxOffs, mouseBusyGfxFrame;
 static SDL_Cursor *cursors[NUM_CURSORS];
 
-static bool setSystemCursor(SDL_Cursor *cursor)
+static bool setSystemCursor(SDL_Cursor *cur)
 {
-	if (cursor == NULL)
+	if (cur == NULL)
 	{
 		SDL_SetCursor(SDL_GetDefaultCursor());
 		return false;
 	}
 
-	SDL_SetCursor(cursor);
+	SDL_SetCursor(cur);
 	return true;
 }
 
@@ -298,7 +301,7 @@
 
 	for (i = 0; i < NUM_TEXTBOXES; i++)
 	{
-		if (editor.ui.sysReqShown && i > 0)
+		if (ui.sysReqShown && i > 0)
 			continue;
 
 		t = &textBoxes[i];
@@ -345,20 +348,20 @@
 {
 	if (busy)
 	{
-		editor.ui.setMouseIdle = false;
-		editor.ui.setMouseBusy = true;
+		ui.setMouseIdle = false;
+		ui.setMouseBusy = true;
 	}
 	else
 	{
-		editor.ui.setMouseBusy = false;
-		editor.ui.setMouseIdle = true;
+		ui.setMouseBusy = false;
+		ui.setMouseIdle = true;
 	}
 }
 
 void mouseAnimOn(void)
 {
-	editor.ui.setMouseBusy = false;
-	editor.ui.setMouseIdle = false;
+	ui.setMouseBusy = false;
+	ui.setMouseIdle = false;
 
 	editor.busy = true;
 	setMouseShape(config.mouseAnimType);
@@ -366,8 +369,8 @@
 
 void mouseAnimOff(void)
 {
-	editor.ui.setMouseBusy = false;
-	editor.ui.setMouseIdle = false;
+	ui.setMouseBusy = false;
+	ui.setMouseIdle = false;
 
 	editor.busy = false;
 	setMouseShape(config.mouseType);
@@ -403,10 +406,10 @@
 
 void mouseWheelHandler(bool directionUp)
 {
-	if (editor.ui.sysReqShown || editor.editTextFlag)
+	if (ui.sysReqShown || editor.editTextFlag)
 		return;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		if (mouse.y <= 52)
 		{
@@ -425,7 +428,7 @@
 	{
 		// top screens
 
-		if (editor.ui.helpScreenShown)
+		if (ui.helpScreenShown)
 		{
 			// help screen
 
@@ -440,7 +443,7 @@
 				helpScrollDown();
 			}
 		}
-		else if (editor.ui.diskOpShown)
+		else if (ui.diskOpShown)
 		{
 			// disk op - 3x speed
 			if (mouse.x <= 355)
@@ -459,7 +462,7 @@
 				}
 			}
 		}
-		else if (editor.ui.configScreenShown)
+		else if (ui.configScreenShown)
 		{
 			if (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
 			{
@@ -482,8 +485,8 @@
 #endif
 		}
 
-		if (!editor.ui.aboutScreenShown  && !editor.ui.helpScreenShown &&
-			!editor.ui.configScreenShown && !editor.ui.nibblesShown)
+		if (!ui.aboutScreenShown  && !ui.helpScreenShown &&
+			!ui.configScreenShown && !ui.nibblesShown)
 		{
 			if (mouse.x >= 421 && mouse.y <= 173)
 			{
@@ -490,7 +493,7 @@
 				     if (mouse.y <= 93) directionUp ? decCurIns() : incCurIns();
 				else if (mouse.y >= 94) directionUp ? decCurSmp() : incCurSmp();
 			}
-			else if (!editor.ui.diskOpShown && mouse.x <= 111 && mouse.y <= 76)
+			else if (!ui.diskOpShown && mouse.x <= 111 && mouse.y <= 76)
 			{
 				directionUp ? decSongPos() : incSongPos();
 			}
@@ -500,12 +503,12 @@
 	{
 		// bottom screens
 
-		if (editor.ui.sampleEditorShown)
+		if (ui.sampleEditorShown)
 		{
 			if (mouse.y >= 174 && mouse.y <= 328)
 				directionUp ? mouseZoomSampleDataIn() : mouseZoomSampleDataOut();
 		}
-		else if (editor.ui.patternEditorShown)
+		else if (ui.patternEditorShown)
 		{
 			directionUp ? mouseWheelDecRow() : mouseWheelIncRow();
 		}
@@ -514,7 +517,7 @@
 
 static bool testSamplerDataMouseDown(void)
 {
-	if (editor.ui.sampleEditorShown && mouse.y >= 174 && mouse.y <= 327 && editor.ui.sampleDataOrLoopDrag == -1)
+	if (ui.sampleEditorShown && mouse.y >= 174 && mouse.y <= 327 && ui.sampleDataOrLoopDrag == -1)
 	{
 		handleSampleDataMouseDown(false);
 		return true;
@@ -527,10 +530,10 @@
 {
 	uint16_t y1, y2;
 
-	if (editor.ui.patternEditorShown)
+	if (ui.patternEditorShown)
 	{
-		y1 = editor.ui.extended ? 56 : 176;
-		y2 = editor.ui.pattChanScrollShown ? 382 : 396;
+		y1 = ui.extended ? 56 : 176;
+		y2 = ui.pattChanScrollShown ? 382 : 396;
 
 		if (mouse.y >= y1 && mouse.y <= y2 && mouse.x >= 29 && mouse.x <= 602)
 		{
@@ -549,16 +552,16 @@
 		mouse.leftButtonPressed = false;
 		mouse.leftButtonReleased = true;
 
-		if (editor.ui.leftLoopPinMoving)
+		if (ui.leftLoopPinMoving)
 		{
 			setLeftLoopPinState(false);
-			editor.ui.leftLoopPinMoving = false;
+			ui.leftLoopPinMoving = false;
 		}
 
-		if (editor.ui.rightLoopPinMoving)
+		if (ui.rightLoopPinMoving)
 		{
 			setRightLoopPinState(false);
-			editor.ui.rightLoopPinMoving = false;
+			ui.rightLoopPinMoving = false;
 		}
 	}
 	else if (mouseButton == SDL_BUTTON_RIGHT)
@@ -574,7 +577,7 @@
 
 			resumeAudio();
 
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				writeSample(true);
 
 			setSongModifiedFlag();
@@ -591,13 +594,13 @@
 	if ( mouse.leftButtonPressed && !mouse.rightButtonPressed) return;
 	if (!mouse.leftButtonPressed &&  mouse.rightButtonPressed) return;
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		testSmpEdMouseUp();
 
 	mouse.lastX = 0;
 	mouse.lastY = 0;
 
-	editor.ui.sampleDataOrLoopDrag = -1;
+	ui.sampleDataOrLoopDrag = -1;
 
 	// check if we released a GUI object
 	testDiskOpMouseRelease();
@@ -622,7 +625,7 @@
 	// if already holding left button and clicking right, don't do mouse down handling
 	if (mouseButton == SDL_BUTTON_RIGHT && mouse.leftButtonPressed)
 	{
-		if (editor.ui.sampleDataOrLoopDrag == -1)
+		if (ui.sampleDataOrLoopDrag == -1)
 		{
 			mouse.rightButtonPressed = true;
 			mouse.rightButtonReleased = false;
@@ -629,7 +632,7 @@
 		}
 
 		// kludge - we must do scope solo/unmute all here
-		if (!editor.ui.sysReqShown)
+		if (!ui.sysReqShown)
 			testScopesMouseDown();
 
 		return;
@@ -638,7 +641,7 @@
 	// if already holding right button and clicking left, don't do mouse down handling
 	if (mouseButton == SDL_BUTTON_LEFT && mouse.rightButtonPressed)
 	{
-		if (editor.ui.sampleDataOrLoopDrag == -1)
+		if (ui.sampleDataOrLoopDrag == -1)
 		{
 			mouse.leftButtonPressed = true;
 			mouse.leftButtonReleased = false;
@@ -645,7 +648,7 @@
 		}
 
 		// kludge - we must do scope solo/unmute all here
-		if (!editor.ui.sysReqShown)
+		if (!ui.sysReqShown)
 			testScopesMouseDown();
 
 		return;
@@ -701,7 +704,7 @@
 	if (testRadioButtonMouseDown()) return;
 
 	// at this point, we don't need to test more widgets if a system request is shown
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 		return;
 
 	if (testInstrVolEnvMouseDown(false)) return;
--- a/src/ft2_mouse.h
+++ b/src/ft2_mouse.h
@@ -13,7 +13,7 @@
 	MOUSE_WHEEL_UP = 1
 };
 
-struct mouse_t
+typedef struct mouse_t
 {
 	volatile bool setPosFlag;
 	bool leftButtonPressed, rightButtonPressed, leftButtonReleased, rightButtonReleased;
@@ -23,7 +23,9 @@
 	int32_t x, y, lastX, lastY, xBias, yBias, setPosX, setPosY;
 	int32_t lastScrollX, lastScrollXTmp, lastScrollY, saveMouseX, saveMouseY;
 	uint32_t buttonState;
-} mouse;
+} mouse_t;
+
+extern mouse_t mouse; // ft2_mouse.c
 
 // do not change these!
 #define MOUSE_CURSOR_W 26
--- a/src/ft2_nibbles.c
+++ b/src/ft2_nibbles.c
@@ -10,6 +10,7 @@
 #include "ft2_pattern_ed.h"
 #include "ft2_bmp.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 #define NI_MAXLEVEL 30
 
@@ -561,7 +562,7 @@
 {
 	int16_t i, j;
 
-	if (editor.ui.sysReqShown || --NI_CurTick60Hz != 0)
+	if (ui.sysReqShown || --NI_CurTick60Hz != 0)
 		return;
 
 	if (nibblesBufferFull(0))
@@ -731,11 +732,11 @@
 
 void showNibblesScreen(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
-	editor.ui.nibblesShown = true;
+	ui.nibblesShown = true;
 
 	drawFramework(0,     0, 632,   3, FRAMEWORK_TYPE1);
 	drawFramework(0,     3, 148,  49, FRAMEWORK_TYPE1);
@@ -812,7 +813,7 @@
 	hideCheckBox(CB_NIBBLES_GRID);
 	hideCheckBox(CB_NIBBLES_WRAP);
 
-	editor.ui.nibblesShown = false;
+	ui.nibblesShown = false;
 }
 
 void exitNibblesScreen(void)
--- a/src/ft2_pattern_draw.c
+++ b/src/ft2_pattern_draw.c
@@ -12,6 +12,7 @@
 #include "ft2_video.h"
 #include "ft2_tables.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 static tonTyp emptyPattern[MAX_VOICES * MAX_PATT_LEN];
 
@@ -58,14 +59,14 @@
 	const pattCoord2_t *pattCoord;
 
 	// get heights/pos/rows depending on configuration
-	pattCoord = &pattCoord2Table[config.ptnUnpressed][editor.ui.pattChanScrollShown][editor.ui.extended];
+	pattCoord = &pattCoord2Table[config.ptnUnpressed][ui.pattChanScrollShown][ui.extended];
 
 	// set pattern cursor Y position
 	editor.ptnCursorY = pattCoord->lowerRowsY - 9;
 
-	chans = editor.ui.numChannelsShown;
-	if (chans > editor.ui.maxVisibleChannels)
-		chans = editor.ui.maxVisibleChannels;
+	chans = ui.numChannelsShown;
+	if (chans > ui.maxVisibleChannels)
+		chans = ui.maxVisibleChannels;
 
 	// in some configurations, there will be two empty channels to the right, fix that
 	if (chans == 2)
@@ -78,7 +79,7 @@
 	chanWidth = chanWidths[(chans / 2) - 1] + 2;
 
 	// fill scrollbar framework (if needed)
-	if (editor.ui.pattChanScrollShown)
+	if (ui.pattChanScrollShown)
 		drawFramework(0, 383, 632, 17, FRAMEWORK_TYPE1);
 
 	if (config.ptnFrmWrk)
@@ -85,7 +86,7 @@
 	{
 		// pattern editor w/ framework
 
-		if (editor.ui.extended)
+		if (ui.extended)
 		{
 			vLine(0,   54, 345, PAL_DSKTOP1);
 			vLine(631, 53, 346, PAL_DSKTOP2);
@@ -96,7 +97,7 @@
 			hLine(0, 53, 631, PAL_DSKTOP1);
 			hLine(1, 54, 630, PAL_DESKTOP);
 
-			if (!editor.ui.pattChanScrollShown)
+			if (!ui.pattChanScrollShown)
 			{
 				hLine(1, 398, 630, PAL_DESKTOP);
 				hLine(0, 399, 632, PAL_DSKTOP2);
@@ -113,7 +114,7 @@
 			hLine(0, 173, 631, PAL_DSKTOP1);
 			hLine(1, 174, 630, PAL_DESKTOP);
 
-			if (!editor.ui.pattChanScrollShown)
+			if (!ui.pattChanScrollShown)
 			{
 				hLine(1, 398, 630, PAL_DESKTOP);
 				hLine(0, 399, 632, PAL_DSKTOP2);
@@ -149,14 +150,14 @@
 	{
 		// pattern editor without framework
 
-		if (editor.ui.extended)
+		if (ui.extended)
 		{
-			clearSize = editor.ui.pattChanScrollShown ? (SCREEN_W * sizeof (int32_t) * 330) : (SCREEN_W * sizeof (int32_t) * 347);
+			clearSize = ui.pattChanScrollShown ? (SCREEN_W * sizeof (int32_t) * 330) : (SCREEN_W * sizeof (int32_t) * 347);
 			memset(&video.frameBuffer[53 * SCREEN_W], 0, clearSize);
 		}
 		else
 		{
-			clearSize = editor.ui.pattChanScrollShown ? (SCREEN_W * sizeof(int32_t) * 210) : (SCREEN_W * sizeof(int32_t) * 227);
+			clearSize = ui.pattChanScrollShown ? (SCREEN_W * sizeof(int32_t) * 210) : (SCREEN_W * sizeof(int32_t) * 227);
 			memset(&video.frameBuffer[173 * SCREEN_W], 0, clearSize);
 		}
 
@@ -163,7 +164,7 @@
 		drawFramework(0, pattCoord->lowerRowsY - 10, SCREEN_W, 11, FRAMEWORK_TYPE1);
 	}
 
-	if (editor.ui.pattChanScrollShown)
+	if (ui.pattChanScrollShown)
 	{
 		showScrollBar(SB_CHAN_SCROLL);
 		showPushButton(PB_CHAN_SCROLL_LEFT);
@@ -183,13 +184,13 @@
 {
 	uint32_t *dstPtr, xPos, width, tabOffset;
 
-	tabOffset = (config.ptnS3M * 32) + (columnModeTab[editor.ui.numChannelsShown - 1] * 8) + editor.cursor.object;
+	tabOffset = (config.ptnS3M * 32) + (columnModeTab[ui.numChannelsShown - 1] * 8) + cursor.object;
 
 	xPos = pattCursorXTab[tabOffset];
 	width = pattCursorWTab[tabOffset];
 
 	assert(editor.ptnCursorY > 0 && xPos > 0 && width > 0);
-	xPos += ((editor.cursor.ch - editor.ui.channelOffset) * editor.ui.patternChannelWidth);
+	xPos += ((cursor.ch - ui.channelOffset) * ui.patternChannelWidth);
 
 	dstPtr = &video.frameBuffer[(editor.ptnCursorY * SCREEN_W) + xPos];
 	for (uint32_t y = 0; y < 9; y++)
@@ -211,8 +212,8 @@
 	if (pattMark.markY1 > pattMark.markY2)
 		return;
 
-	startCh = editor.ui.channelOffset;
-	endCh = editor.ui.channelOffset + (editor.ui.numChannelsShown - 1);
+	startCh = ui.channelOffset;
+	endCh = ui.channelOffset + (ui.numChannelsShown - 1);
 	startRow = currRow - pattCoord->numUpperRows;
 	endRow = currRow + pattCoord->numLowerRows;
 
@@ -220,18 +221,18 @@
 	if (pattMark.markX1 > endCh || pattMark.markX2 < startCh || pattMark.markY1 > endRow || pattMark.markY2 < startRow)
 		return;
 
-	markCoord = &markCoordTable[config.ptnUnpressed][editor.ui.pattChanScrollShown][editor.ui.extended];
+	markCoord = &markCoordTable[config.ptnUnpressed][ui.pattChanScrollShown][ui.extended];
 	pattYStart = markCoord->upperRowsY;
 
 	// X1
 
-	x1 = 32 + ((pattMark.markX1 - editor.ui.channelOffset) * editor.ui.patternChannelWidth);
+	x1 = 32 + ((pattMark.markX1 - ui.channelOffset) * ui.patternChannelWidth);
 	if (x1 < 32)
 		x1 = 32;
 
 	// X2
 
-	x2 = (32 - 8) + (((pattMark.markX2 + 1) - editor.ui.channelOffset) * editor.ui.patternChannelWidth);
+	x2 = (32 - 8) + (((pattMark.markX2 + 1) - ui.channelOffset) * ui.patternChannelWidth);
 	if (x2 > 608)
 		x2 = 608;
 
@@ -272,7 +273,7 @@
 	}
 
 	// kludge! (some mark situations could overwrite illegal areas)
-	if (config.ptnUnpressed && editor.ui.pattChanScrollShown)
+	if (config.ptnUnpressed && ui.pattChanScrollShown)
 	{
 		if (y1 == pattCoord->upperRowsY-1 || y1 == pattCoord->lowerRowsY-1)
 			y1++;
@@ -310,9 +311,9 @@
 #define CH_NUM_XPOS 30
 
 	uint16_t xPos = CH_NUM_XPOS;
-	int32_t ch = editor.ui.channelOffset + 1;
+	int32_t ch = ui.channelOffset + 1;
 
-	for (uint8_t i = 0; i < editor.ui.numChannelsShown; i++)
+	for (uint8_t i = 0; i < ui.numChannelsShown; i++)
 	{
 		if (ch < 10)
 		{
@@ -325,7 +326,7 @@
 		}
 
 		ch++;
-		xPos += editor.ui.patternChannelWidth;
+		xPos += ui.patternChannelWidth;
 	}
 }
 
@@ -385,7 +386,7 @@
 
 	assert(ton >= 0 && ton <= 97);
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		if (ton <= 0 || ton > 97)
 			drawEmptyNoteBig(xPos, yPos, color);
@@ -409,13 +410,13 @@
 {
 	uint8_t chr1, chr2, charW, fontType;
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
 		xPos += 67;
 	}
-	else if (editor.ui.numChannelsShown <= 6)
+	else if (ui.numChannelsShown <= 6)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -450,7 +451,7 @@
 {
 	uint8_t char1, char2, fontType, charW;
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -462,7 +463,7 @@
 		else
 			char2 = vol & 0x0F;
 	}
-	else if (editor.ui.numChannelsShown <= 6)
+	else if (ui.numChannelsShown <= 6)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -495,13 +496,13 @@
 {
 	uint8_t fontType, charW;
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
 		xPos += 115;
 	}
-	else if (editor.ui.numChannelsShown <= 6)
+	else if (ui.numChannelsShown <= 6)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -527,7 +528,7 @@
 
 	assert(ton >= 0 && ton <= 97);
 
-	if (editor.ui.numChannelsShown <= 6)
+	if (ui.numChannelsShown <= 6)
 	{
 		if (ton <= 0 || ton > 97)
 			drawEmptyNoteBig(xPos, yPos, color);
@@ -536,7 +537,7 @@
 		else
 			drawNoteBig(xPos, yPos, ton, color);
 	}
-	else if (editor.ui.numChannelsShown <= 8)
+	else if (ui.numChannelsShown <= 8)
 	{
 		if (ton <= 0 || ton > 97)
 			drawEmptyNoteMedium(xPos, yPos, color);
@@ -560,19 +561,19 @@
 {
 	uint8_t chr1, chr2, charW, fontType;
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		fontType = FONT_TYPE5;
 		charW = FONT5_CHAR_W;
 		xPos += 59;
 	}
-	else if (editor.ui.numChannelsShown <= 6)
+	else if (ui.numChannelsShown <= 6)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
 		xPos += 51;
 	}
-	else if (editor.ui.numChannelsShown <= 8)
+	else if (ui.numChannelsShown <= 8)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -616,19 +617,19 @@
 {
 	uint8_t charW, fontType;
 
-	if (editor.ui.numChannelsShown <= 4)
+	if (ui.numChannelsShown <= 4)
 	{
 		fontType = FONT_TYPE5;
 		charW = FONT5_CHAR_W;
 		xPos += 91;
 	}
-	else if (editor.ui.numChannelsShown <= 6)
+	else if (ui.numChannelsShown <= 6)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
 		xPos += 67;
 	}
-	else if (editor.ui.numChannelsShown <= 8)
+	else if (ui.numChannelsShown <= 8)
 	{
 		fontType = FONT_TYPE4;
 		charW = FONT4_CHAR_W;
@@ -667,19 +668,19 @@
 
 	// setup variables
 
-	chans = editor.ui.numChannelsShown;
-	if (chans > editor.ui.maxVisibleChannels)
-		chans = editor.ui.maxVisibleChannels;
+	chans = ui.numChannelsShown;
+	if (chans > ui.maxVisibleChannels)
+		chans = ui.maxVisibleChannels;
 
 	assert(chans >= 2 && chans <= 12);
 
 	// get channel width
 	chanWidth = chanWidths[(chans / 2) - 1];
-	editor.ui.patternChannelWidth = (uint16_t)(chanWidth + 3);
+	ui.patternChannelWidth = (uint16_t)(chanWidth + 3);
 
 	// get heights/pos/rows depending on configuration
 	rowHeight = config.ptnUnpressed ? 11 : 8;
-	pattCoord = &pattCoordTable[config.ptnUnpressed][editor.ui.pattChanScrollShown][editor.ui.extended];
+	pattCoord = &pattCoordTable[config.ptnUnpressed][ui.pattChanScrollShown][ui.extended];
 	midRowTextY = pattCoord->midRowTextY;
 	lowerRowsTextY = pattCoord->lowerRowsTextY;
 	row = currRow - pattCoord->numUpperRows;
@@ -687,7 +688,7 @@
 	textY = pattCoord->upperRowsTextY;
 
 	afterCurrRow = currRow + 1;
-	numChannels = editor.ui.numChannelsShown;
+	numChannels = ui.numChannelsShown;
 	pattPtr = patt[pattern];
 	numRows = pattLens[pattern];
 	noteTextColors[0] = video.palette[PAL_PATTEXT]; // not selected
@@ -695,7 +696,7 @@
 
 	// increment pattern data pointer by horizontal scrollbar offset/channel
 	if (pattPtr != NULL)
-		pattPtr += editor.ui.channelOffset;
+		pattPtr += ui.channelOffset;
 
 	// set up function pointers for drawing
 	if (config.ptnS3M)
@@ -728,7 +729,7 @@
 				note = &pattPtr[(uint32_t)row * MAX_VOICES];
 
 			xPos = 29;
-			xWidth = editor.ui.patternChannelWidth;
+			xWidth = ui.patternChannelWidth;
 
 			color = noteTextColors[selectedRowFlag];
 			for (int32_t j = 0; j < numChannels; j++)
--- a/src/ft2_pattern_ed.c
+++ b/src/ft2_pattern_ed.c
@@ -21,7 +21,10 @@
 #include "ft2_video.h"
 #include "ft2_tables.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
+pattMark_t pattMark; // globalized
+
 // for pattern marking w/ keyboard
 static int8_t lastChMark;
 static int16_t lastRowMark;
@@ -41,14 +44,12 @@
 
 bool allocatePattern(uint16_t nr) // for tracker use only, not in loader!
 {
-	bool audioWasntLocked;
+	const bool audioWasntLocked = !audio.locked;
+	if (audioWasntLocked)
+		lockAudio();
 
 	if (patt[nr] == NULL)
 	{
-		audioWasntLocked = !audio.locked;
-		if (audioWasntLocked)
-			lockAudio();
-
 		/* Original FT2 allocates only the amount of rows needed, but we don't
 		** do that to avoid out of bondary row look-up between out-of-sync replayer
 		** state and tracker state (yes it used to happen, rarely). We're not wasting
@@ -67,33 +68,31 @@
 
 		// XXX: Do we really need this? Sounds redundant.
 		song.pattLen = pattLens[nr];
-
-		if (audioWasntLocked)
-			unlockAudio();
 	}
 
+	if (audioWasntLocked)
+		unlockAudio();
+
 	return true;
 }
 
 void killPatternIfUnused(uint16_t nr) // for tracker use only, not in loader!
 {
-	bool audioWasntLocked;
+	const bool audioWasntLocked = !audio.locked;
+	if (audioWasntLocked)
+		lockAudio();
 
 	if (patternEmpty(nr))
 	{
-		audioWasntLocked = !audio.locked;
-		if (audioWasntLocked)
-			lockAudio();
-
 		if (patt[nr] != NULL)
 		{
 			free(patt[nr]);
 			patt[nr] = NULL;
 		}
-
-		if (audioWasntLocked)
-			unlockAudio();
 	}
+
+	if (audioWasntLocked)
+		unlockAudio();
 }
 
 uint8_t getMaxVisibleChannels(void)
@@ -119,12 +118,12 @@
 
 void updatePatternWidth(void)
 {
-	if (editor.ui.numChannelsShown > editor.ui.maxVisibleChannels)
-		editor.ui.numChannelsShown = editor.ui.maxVisibleChannels;
+	if (ui.numChannelsShown > ui.maxVisibleChannels)
+		ui.numChannelsShown = ui.maxVisibleChannels;
 
-	assert(editor.ui.numChannelsShown >= 2 && editor.ui.numChannelsShown <= 12);
+	assert(ui.numChannelsShown >= 2 && ui.numChannelsShown <= 12);
 
-	editor.ui.patternChannelWidth = chanWidths[(editor.ui.numChannelsShown / 2) - 1] + 3;
+	ui.patternChannelWidth = chanWidths[(ui.numChannelsShown / 2) - 1] + 3;
 }
 
 void updateAdvEdit(void)
@@ -205,7 +204,7 @@
 
 void hideAdvEdit(void)
 {
-	editor.ui.advEditShown = false;
+	ui.advEditShown = false;
 
 	hidePushButton(PB_REMAP_TRACK);
 	hidePushButton(PB_REMAP_PATTERN);
@@ -229,26 +228,26 @@
 	hideCheckBox(CB_TRANSP_MASK_3);
 	hideCheckBox(CB_TRANSP_MASK_4);
 
-	editor.ui.scopesShown = true;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
 void showAdvEdit(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
 	showTopScreen(false);
 
-	editor.ui.advEditShown = true;
-	editor.ui.scopesShown  = false;
+	ui.advEditShown = true;
+	ui.scopesShown  = false;
 	drawAdvEdit();
 }
 
 void toggleAdvEdit(void)
 {
-	if (editor.ui.advEditShown)
+	if (ui.advEditShown)
 		hideAdvEdit();
 	else
 		showAdvEdit();
@@ -307,14 +306,14 @@
 
 void showTranspose(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
 	showTopScreen(false);
 
-	editor.ui.transposeShown = true;
-	editor.ui.scopesShown = false;
+	ui.transposeShown = true;
+	ui.scopesShown = false;
 	drawTranspose();
 }
 
@@ -353,14 +352,14 @@
 	hidePushButton(PB_TRANSP_ALL_INS_BLK_12UP);
 	hidePushButton(PB_TRANSP_ALL_INS_BLK_12DN);
 
-	editor.ui.transposeShown = false;
-	editor.ui.scopesShown = true;
+	ui.transposeShown = false;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
 void toggleTranspose(void)
 {
-	if (editor.ui.transposeShown)
+	if (ui.transposeShown)
 		hideTranspose();
 	else
 		showTranspose();
@@ -370,20 +369,20 @@
 
 void cursorChannelLeft(void)
 {
-	editor.cursor.object = CURSOR_EFX2;
+	cursor.object = CURSOR_EFX2;
 
-	if (editor.cursor.ch == 0)
+	if (cursor.ch == 0)
 	{
-		editor.cursor.ch = (uint8_t)(song.antChn - 1);
-		if (editor.ui.pattChanScrollShown)
+		cursor.ch = (uint8_t)(song.antChn - 1);
+		if (ui.pattChanScrollShown)
 			setScrollBarPos(SB_CHAN_SCROLL, song.antChn, true);
 	}
 	else
 	{
-		editor.cursor.ch--;
-		if (editor.ui.pattChanScrollShown)
+		cursor.ch--;
+		if (ui.pattChanScrollShown)
 		{
-			if (editor.cursor.ch < editor.ui.channelOffset)
+			if (cursor.ch < ui.channelOffset)
 				scrollBarScrollUp(SB_CHAN_SCROLL, 1);
 		}
 	}
@@ -391,18 +390,18 @@
 
 void cursorChannelRight(void)
 {
-	editor.cursor.object = CURSOR_NOTE;
+	cursor.object = CURSOR_NOTE;
 
-	if (editor.cursor.ch >= song.antChn-1)
+	if (cursor.ch >= song.antChn-1)
 	{
-		editor.cursor.ch = 0;
-		if (editor.ui.pattChanScrollShown)
+		cursor.ch = 0;
+		if (ui.pattChanScrollShown)
 			setScrollBarPos(SB_CHAN_SCROLL, 0, true);
 	}
 	else
 	{
-		editor.cursor.ch++;
-		if (editor.ui.pattChanScrollShown && editor.cursor.ch >= editor.ui.channelOffset+editor.ui.numChannelsShown)
+		cursor.ch++;
+		if (ui.pattChanScrollShown && cursor.ch >= ui.channelOffset+ui.numChannelsShown)
 			scrollBarScrollDown(SB_CHAN_SCROLL, 1);
 	}
 }
@@ -409,78 +408,78 @@
 
 void cursorTabLeft(void)
 {
-	if (editor.cursor.object == CURSOR_NOTE)
+	if (cursor.object == CURSOR_NOTE)
 		cursorChannelLeft();
 
-	editor.cursor.object = CURSOR_NOTE;
-	editor.ui.updatePatternEditor = true;
+	cursor.object = CURSOR_NOTE;
+	ui.updatePatternEditor = true;
 }
 
 void cursorTabRight(void)
 {
 	cursorChannelRight();
-	editor.cursor.object = CURSOR_NOTE;
-	editor.ui.updatePatternEditor = true;
+	cursor.object = CURSOR_NOTE;
+	ui.updatePatternEditor = true;
 }
 
 void chanLeft(void)
 {
 	cursorChannelLeft();
-	editor.cursor.object = CURSOR_NOTE;
-	editor.ui.updatePatternEditor = true;
+	cursor.object = CURSOR_NOTE;
+	ui.updatePatternEditor = true;
 }
 
 void chanRight(void)
 {
 	cursorChannelRight();
-	editor.cursor.object = CURSOR_NOTE;
-	editor.ui.updatePatternEditor = true;
+	cursor.object = CURSOR_NOTE;
+	ui.updatePatternEditor = true;
 }
 
 void cursorLeft(void)
 {
-	editor.cursor.object--;
+	cursor.object--;
 
 	if (!config.ptnS3M)
 	{
-		while (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2)
-			editor.cursor.object--;
+		while (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2)
+			cursor.object--;
 	}
 
-	if (editor.cursor.object == -1)
+	if (cursor.object == -1)
 	{
-		editor.cursor.object = CURSOR_EFX2;
+		cursor.object = CURSOR_EFX2;
 		cursorChannelLeft();
 	}
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void cursorRight(void)
 {
-	editor.cursor.object++;
+	cursor.object++;
 
 	if (!config.ptnS3M)
 	{
-		while (editor.cursor.object == CURSOR_VOL1 || editor.cursor.object == CURSOR_VOL2)
-			editor.cursor.object++;
+		while (cursor.object == CURSOR_VOL1 || cursor.object == CURSOR_VOL2)
+			cursor.object++;
 	}
 
-	if (editor.cursor.object == 8)
+	if (cursor.object == 8)
 	{
-		editor.cursor.object = CURSOR_NOTE;
+		cursor.object = CURSOR_NOTE;
 		cursorChannelRight();
 	}
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void showPatternEditor(void)
 {
-	editor.ui.patternEditorShown = true;
+	ui.patternEditorShown = true;
 	updateChanNums();
 	drawPatternBorders();
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void hidePatternEditor(void)
@@ -489,7 +488,7 @@
 	hidePushButton(PB_CHAN_SCROLL_LEFT);
 	hidePushButton(PB_CHAN_SCROLL_RIGHT);
 
-	editor.ui.patternEditorShown = false;
+	ui.patternEditorShown = false;
 }
 
 static void updatePatternEditorGUI(void)
@@ -498,7 +497,7 @@
 	pushButton_t *p;
 	textBox_t *t;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		// extended pattern editor
 
@@ -625,29 +624,29 @@
 void patternEditorExtended(void)
 {
 	// backup old screen flags
-	editor.ui._aboutScreenShown = editor.ui.aboutScreenShown;
-	editor.ui._helpScreenShown = editor.ui.helpScreenShown;
-	editor.ui._configScreenShown = editor.ui.configScreenShown;
-	editor.ui._diskOpShown = editor.ui.diskOpShown;
-	editor.ui._nibblesShown = editor.ui.nibblesShown;
-	editor.ui._transposeShown = editor.ui.transposeShown;
-	editor.ui._instEditorShown = editor.ui.instEditorShown;
-	editor.ui._instEditorExtShown = editor.ui.instEditorExtShown;
-	editor.ui._sampleEditorExtShown = editor.ui.sampleEditorExtShown;
-	editor.ui._patternEditorShown = editor.ui.patternEditorShown;
-	editor.ui._sampleEditorShown = editor.ui.sampleEditorShown;
-	editor.ui._advEditShown= editor.ui.advEditShown;
-	editor.ui._wavRendererShown = editor.ui.wavRendererShown;
-	editor.ui._trimScreenShown = editor.ui.trimScreenShown;
+	ui._aboutScreenShown = ui.aboutScreenShown;
+	ui._helpScreenShown = ui.helpScreenShown;
+	ui._configScreenShown = ui.configScreenShown;
+	ui._diskOpShown = ui.diskOpShown;
+	ui._nibblesShown = ui.nibblesShown;
+	ui._transposeShown = ui.transposeShown;
+	ui._instEditorShown = ui.instEditorShown;
+	ui._instEditorExtShown = ui.instEditorExtShown;
+	ui._sampleEditorExtShown = ui.sampleEditorExtShown;
+	ui._patternEditorShown = ui.patternEditorShown;
+	ui._sampleEditorShown = ui.sampleEditorShown;
+	ui._advEditShown= ui.advEditShown;
+	ui._wavRendererShown = ui.wavRendererShown;
+	ui._trimScreenShown = ui.trimScreenShown;
 
 	hideTopScreen();
 	hideSampleEditor();
 	hideInstEditor();
 
-	editor.ui.extended = true;
-	editor.ui.patternEditorShown = true;
+	ui.extended = true;
+	ui.patternEditorShown = true;
 	updatePatternEditorGUI(); // change pattern editor layout (based on ui.extended flag)
-	editor.ui.updatePatternEditor = true; // redraw pattern editor
+	ui.updatePatternEditor = true; // redraw pattern editor
 
 	drawFramework(0,    0, 112, 53, FRAMEWORK_TYPE1);
 	drawFramework(112,  0, 106, 33, FRAMEWORK_TYPE1);
@@ -684,7 +683,7 @@
 	textOutShadow(222, 39, PAL_FORGRND, PAL_DSKTOP2, "Ptn.");
 	textOutShadow(305, 39, PAL_FORGRND, PAL_DSKTOP2, "Ln.");
 
-	editor.ui.instrSwitcherShown = true;
+	ui.instrSwitcherShown = true;
 	showInstrumentSwitcher();
 
 	drawSongLength();
@@ -692,7 +691,7 @@
 	drawEditPattern(editor.editPattern);
 	drawPatternLength(editor.editPattern);
 	drawPosEdNums(editor.songPos);
-	editor.ui.updatePosSections = true;
+	ui.updatePosSections = true;
 
 	// kludge to fix scrollbar thumb when the scrollbar height changes during playback
 	if (songPlaying)
@@ -701,7 +700,7 @@
 
 void exitPatternEditorExtended(void)
 {
-	editor.ui.extended = false;
+	ui.extended = false;
 	updatePatternEditorGUI();
 	hidePushButton(PB_EXIT_EXT_PATT);
 
@@ -708,20 +707,20 @@
 	// set back top screen button maps
 
 	// set back old screen flags
-	editor.ui.aboutScreenShown = editor.ui._aboutScreenShown;
-	editor.ui.helpScreenShown = editor.ui._helpScreenShown;
-	editor.ui.configScreenShown = editor.ui._configScreenShown;
-	editor.ui.diskOpShown = editor.ui._diskOpShown;
-	editor.ui.nibblesShown = editor.ui._nibblesShown;
-	editor.ui.transposeShown = editor.ui._transposeShown;
-	editor.ui.instEditorShown = editor.ui._instEditorShown;
-	editor.ui.instEditorExtShown = editor.ui._instEditorExtShown;
-	editor.ui.sampleEditorExtShown = editor.ui._sampleEditorExtShown;
-	editor.ui.patternEditorShown = editor.ui._patternEditorShown;
-	editor.ui.sampleEditorShown = editor.ui._sampleEditorShown;
-	editor.ui.advEditShown = editor.ui._advEditShown;
-	editor.ui.wavRendererShown = editor.ui._wavRendererShown;
-	editor.ui.trimScreenShown = editor.ui.trimScreenShown;
+	ui.aboutScreenShown = ui._aboutScreenShown;
+	ui.helpScreenShown = ui._helpScreenShown;
+	ui.configScreenShown = ui._configScreenShown;
+	ui.diskOpShown = ui._diskOpShown;
+	ui.nibblesShown = ui._nibblesShown;
+	ui.transposeShown = ui._transposeShown;
+	ui.instEditorShown = ui._instEditorShown;
+	ui.instEditorExtShown = ui._instEditorExtShown;
+	ui.sampleEditorExtShown = ui._sampleEditorExtShown;
+	ui.patternEditorShown = ui._patternEditorShown;
+	ui.sampleEditorShown = ui._sampleEditorShown;
+	ui.advEditShown = ui._advEditShown;
+	ui.wavRendererShown = ui._wavRendererShown;
+	ui.trimScreenShown = ui.trimScreenShown;
 
 	showTopScreen(true);
 	showBottomScreen();
@@ -733,7 +732,7 @@
 
 void togglePatternEditorExtended(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 	else
 		patternEditorExtended();
@@ -771,16 +770,16 @@
 	int8_t ch, chEnd;
 	int32_t mouseX;
 
-	assert(editor.ui.patternChannelWidth > 0);
-	if (editor.ui.patternChannelWidth == 0)
+	assert(ui.patternChannelWidth > 0);
+	if (ui.patternChannelWidth == 0)
 		return 0;
 
 	mouseX = mouse.x - 29;
 	mouseX = CLAMP(mouseX, 0, 573);
 
-	chEnd = (editor.ui.channelOffset + editor.ui.numChannelsShown) - 1;
+	chEnd = (ui.channelOffset + ui.numChannelsShown) - 1;
 
-	ch = editor.ui.channelOffset + (int8_t)(mouseX / editor.ui.patternChannelWidth);
+	ch = ui.channelOffset + (int8_t)(mouseX / ui.patternChannelWidth);
 	ch = CLAMP(ch, 0, chEnd);
 
 	// in some setups there can be non-used channels to the right, do clamping
@@ -796,10 +795,10 @@
 	int16_t row, patternLen, my, maxY, maxRow;
 	const pattCoordsMouse_t *pattCoordsMouse;
 
-	pattCoordsMouse = &pattCoordMouseTable[config.ptnUnpressed][editor.ui.pattChanScrollShown][editor.ui.extended];
+	pattCoordsMouse = &pattCoordMouseTable[config.ptnUnpressed][ui.pattChanScrollShown][ui.extended];
 
 	// clamp mouse y to boundaries
-	maxY = editor.ui.pattChanScrollShown ? 382 : 396;
+	maxY = ui.pattChanScrollShown ? 382 : 396;
 	my   = (int16_t)(CLAMP(mouse.y, pattCoordsMouse->upperRowsY, maxY));
 
 	charHeight = config.ptnUnpressed ? 11 : 8;
@@ -825,7 +824,7 @@
 		row = (editor.pattPos + 1) + ((my - pattCoordsMouse->lowerRowsY) / charHeight);
 
 		// prevent being able to mark the next unseen row on the bottom (in some configurations)
-		mode = (editor.ui.extended * 4) + (config.ptnUnpressed * 2) + editor.ui.pattChanScrollShown;
+		mode = (ui.extended * 4) + (config.ptnUnpressed * 2) + ui.pattChanScrollShown;
 
 		maxRow = (ptnAntLine[mode] + (editor.pattPos - ptnLineSub[mode])) - 1;
 		if (row > maxRow)
@@ -850,7 +849,7 @@
 	if (mouse.rightButtonPressed)
 	{
 		clearPattMark();
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 		return;
 	}
 
@@ -873,7 +872,7 @@
 
 		checkMarkLimits();
 
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 		return;
 	}
 
@@ -882,7 +881,7 @@
 	forceMarking = songPlaying;
 
 	// scroll left/right with mouse
-	if (editor.ui.pattChanScrollShown)
+	if (ui.pattChanScrollShown)
 	{
 		if (mouse.x < 29)
 		{
@@ -916,7 +915,7 @@
 		if (lastMarkX1 != pattMark.markX1 || lastMarkX2 != pattMark.markX2)
 		{
 			checkMarkLimits();
-			editor.ui.updatePatternEditor = true;
+			ui.updatePatternEditor = true;
 
 			lastMarkX1 = pattMark.markX1;
 			lastMarkX2 = pattMark.markX2;
@@ -926,8 +925,8 @@
 	// scroll down/up with mouse (if song is not playing)
 	if (!songPlaying)
 	{
-		y1 = editor.ui.extended ? 56 : 176;
-		y2 = editor.ui.pattChanScrollShown ? 382 : 396;
+		y1 = ui.extended ? 56 : 176;
+		y2 = ui.pattChanScrollShown ? 382 : 396;
 
 		if (mouse.y < y1)
 		{
@@ -936,7 +935,7 @@
 				setPos(-1, editor.pattPos - 1, true);
 
 			forceMarking = true;
-			editor.ui.updatePatternEditor = true;
+			ui.updatePatternEditor = true;
 		}
 		else if (mouse.y > y2)
 		{
@@ -945,7 +944,7 @@
 				setPos(-1, editor.pattPos + 1, true);
 
 			forceMarking = true;
-			editor.ui.updatePatternEditor = true;
+			ui.updatePatternEditor = true;
 		}
 	}
 
@@ -969,7 +968,7 @@
 		if (lastMarkY1 != pattMark.markY1 || lastMarkY2 != pattMark.markY2)
 		{
 			checkMarkLimits();
-			editor.ui.updatePatternEditor = true;
+			ui.updatePatternEditor = true;
 
 			lastMarkY1 = pattMark.markY1;
 			lastMarkY2 = pattMark.markY2;
@@ -979,7 +978,7 @@
 
 void rowOneUpWrap(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -987,7 +986,7 @@
 	if (!songPlaying)
 	{
 		editor.pattPos = (uint8_t)song.pattPos;
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 	}
 
 	if (audioWasntLocked)
@@ -996,7 +995,7 @@
 
 void rowOneDownWrap(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1008,7 +1007,7 @@
 	{
 		song.pattPos = (song.pattPos + 1 + song.pattLen) % song.pattLen;
 		editor.pattPos = (uint8_t)song.pattPos;
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 	}
 
 	if (audioWasntLocked)
@@ -1017,7 +1016,7 @@
 
 void rowUp(uint16_t amount)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1028,7 +1027,7 @@
 	if (!songPlaying)
 	{
 		editor.pattPos = (uint8_t)song.pattPos;
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 	}
 
 	if (audioWasntLocked)
@@ -1037,7 +1036,7 @@
 
 void rowDown(uint16_t amount)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1048,7 +1047,7 @@
 	if (!songPlaying)
 	{
 		editor.pattPos = (uint8_t)song.pattPos;
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 	}
 
 	if (audioWasntLocked)
@@ -1060,7 +1059,7 @@
 	int8_t xPos;
 	int16_t pattPos;
 
-	xPos = editor.cursor.ch;
+	xPos = cursor.ch;
 	pattPos = editor.pattPos;
 
 	if (xPos != pattMark.markX1 && xPos != pattMark.markX2)
@@ -1097,7 +1096,7 @@
 	int8_t xPos;
 	int16_t pattPos;
 
-	xPos = editor.cursor.ch;
+	xPos = cursor.ch;
 	pattPos = editor.pattPos;
 
 	if (xPos != pattMark.markX1 && xPos != pattMark.markX2)
@@ -1133,7 +1132,7 @@
 	int8_t xPos;
 	int16_t pattPos;
 
-	xPos = editor.cursor.ch;
+	xPos = cursor.ch;
 	pattPos = editor.pattPos;
 
 	if (pattPos != pattMark.markY1-1 && pattPos != pattMark.markY2)
@@ -1167,7 +1166,7 @@
 	int8_t xPos;
 	int16_t pattPos;
 
-	xPos = editor.cursor.ch;
+	xPos = cursor.ch;
 	pattPos = editor.pattPos;
 
 	if (pattPos != pattMark.markY1-1 && pattPos != pattMark.markY2)
@@ -1248,7 +1247,7 @@
 	lockMixerCallback();
 	for (uint16_t i = 0; i < pattLen; i++)
 	{
-		pattPtr = &patt[nr][(i * MAX_VOICES) + editor.cursor.ch];
+		pattPtr = &patt[nr][(i * MAX_VOICES) + cursor.ch];
 		*pattPtr = loadBuff[i];
 
 		// non-FT2 security fix: remove overflown (illegal) stuff
@@ -1266,8 +1265,8 @@
 
 	fclose(f);
 
-	editor.ui.updatePatternEditor = true;
-	editor.ui.updatePosSections = true;
+	ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
 
 	diskOpSetFilename(DISKOP_ITEM_TRACK, filenameU);
 	setSongModifiedFlag();
@@ -1304,7 +1303,7 @@
 
 	pattLen = pattLens[nr];
 	for (i = 0; i < pattLen; i++)
-		saveBuff[i] = pattPtr[(i * MAX_VOICES) + editor.cursor.ch];
+		saveBuff[i] = pattPtr[(i * MAX_VOICES) + cursor.ch];
 
 	th.len = pattLen;
 	th.ver = 1;
@@ -1400,8 +1399,8 @@
 
 	fclose(f);
 
-	editor.ui.updatePatternEditor = true;
-	editor.ui.updatePosSections = true;
+	ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
 
 	diskOpSetFilename(DISKOP_ITEM_PATTERN, filenameU);
 	setSongModifiedFlag();
@@ -1471,61 +1470,61 @@
 
 void setChannelScrollPos(uint32_t pos)
 {
-	if (!editor.ui.pattChanScrollShown)
+	if (!ui.pattChanScrollShown)
 	{
-		editor.ui.channelOffset = 0;
+		ui.channelOffset = 0;
 		return;
 	}
 
-	if (editor.ui.channelOffset == (uint8_t)pos)
+	if (ui.channelOffset == (uint8_t)pos)
 		return;
 
-	editor.ui.channelOffset = (uint8_t)pos;
+	ui.channelOffset = (uint8_t)pos;
 
-	assert(song.antChn > editor.ui.numChannelsShown);
-	if (editor.ui.channelOffset >= song.antChn-editor.ui.numChannelsShown)
-		editor.ui.channelOffset = (uint8_t)(song.antChn-editor.ui.numChannelsShown);
+	assert(song.antChn > ui.numChannelsShown);
+	if (ui.channelOffset >= song.antChn-ui.numChannelsShown)
+		ui.channelOffset = (uint8_t)(song.antChn-ui.numChannelsShown);
 
-	if (editor.cursor.ch >= editor.ui.channelOffset+editor.ui.numChannelsShown)
+	if (cursor.ch >= ui.channelOffset+ui.numChannelsShown)
 	{
-		editor.cursor.object = CURSOR_NOTE;
-		editor.cursor.ch = (editor.ui.channelOffset + editor.ui.numChannelsShown) - 1;
+		cursor.object = CURSOR_NOTE;
+		cursor.ch = (ui.channelOffset + ui.numChannelsShown) - 1;
 	}
-	else if (editor.cursor.ch < editor.ui.channelOffset)
+	else if (cursor.ch < ui.channelOffset)
 	{
-		editor.cursor.object = CURSOR_NOTE;
-		editor.cursor.ch = editor.ui.channelOffset;
+		cursor.object = CURSOR_NOTE;
+		cursor.ch = ui.channelOffset;
 	}
 
-	editor.ui.updatePatternEditor = true;
+	ui.updatePatternEditor = true;
 }
 
 void jumpToChannel(uint8_t channel) // for ALT+q..i ALT+a..k
 {
-	if (editor.ui.sampleEditorShown || editor.ui.instEditorShown)
+	if (ui.sampleEditorShown || ui.instEditorShown)
 		return;
 
 	channel %= song.antChn;
-	if (editor.cursor.ch == channel)
+	if (cursor.ch == channel)
 		return;
 
-	if (editor.ui.pattChanScrollShown)
+	if (ui.pattChanScrollShown)
 	{
-		assert(song.antChn > editor.ui.numChannelsShown);
+		assert(song.antChn > ui.numChannelsShown);
 
-		if (channel >= editor.ui.channelOffset+editor.ui.numChannelsShown)
-			scrollBarScrollDown(SB_CHAN_SCROLL, (channel - (editor.ui.channelOffset + editor.ui.numChannelsShown)) + 1);
-		else if (channel < editor.ui.channelOffset)
-			scrollBarScrollUp(SB_CHAN_SCROLL, editor.ui.channelOffset - channel);
+		if (channel >= ui.channelOffset+ui.numChannelsShown)
+			scrollBarScrollDown(SB_CHAN_SCROLL, (channel - (ui.channelOffset + ui.numChannelsShown)) + 1);
+		else if (channel < ui.channelOffset)
+			scrollBarScrollUp(SB_CHAN_SCROLL, ui.channelOffset - channel);
 	}
 
-	editor.cursor.ch = channel; // set it here since scrollBarScrollX() changes it...
-	editor.ui.updatePatternEditor = true;
+	cursor.ch = channel; // set it here since scrollBarScrollX() changes it...
+	ui.updatePatternEditor = true;
 }
 
 void sbPosEdPos(uint32_t pos)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1538,7 +1537,7 @@
 
 void pbPosEdPosUp(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1551,7 +1550,7 @@
 
 void pbPosEdPosDown(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1578,8 +1577,8 @@
 
 	song.len++;
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePosEdScrollBar = true;
+	ui.updatePosSections = true;
+	ui.updatePosEdScrollBar = true;
 	setSongModifiedFlag();
 
 	unlockMixerCallback();
@@ -1608,8 +1607,8 @@
 		setPos(song.songPos, -1, false);
 	}
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePosEdScrollBar = true;
+	ui.updatePosSections = true;
+	ui.updatePosEdScrollBar = true;
 	setSongModifiedFlag();
 
 	unlockMixerCallback();
@@ -1628,8 +1627,8 @@
 		editor.editPattern = (uint8_t)song.pattNr;
 		song.pattLen = pattLens[editor.editPattern];
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
+		ui.updatePatternEditor = true;
+		ui.updatePosSections = true;
 		setSongModifiedFlag();
 	}
 	unlockMixerCallback();
@@ -1648,8 +1647,8 @@
 		editor.editPattern = (uint8_t)song.pattNr;
 		song.pattLen = pattLens[editor.editPattern];
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
+		ui.updatePatternEditor = true;
+		ui.updatePosSections = true;
 		setSongModifiedFlag();
 	}
 	unlockMixerCallback();
@@ -1657,19 +1656,17 @@
 
 void pbPosEdLenUp(void)
 {
-	bool audioWasntLocked;
-
 	if (song.len >= 255)
 		return;
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
 	song.len++;
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePosEdScrollBar = true;
+	ui.updatePosSections = true;
+	ui.updatePosEdScrollBar = true;
 	setSongModifiedFlag();
 
 	if (audioWasntLocked)
@@ -1678,12 +1675,10 @@
 
 void pbPosEdLenDown(void)
 {
-	bool audioWasntLocked;
-
 	if (song.len <= 1)
 		return;
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1698,8 +1693,8 @@
 		setPos(song.songPos, -1, false);
 	}
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePosEdScrollBar = true;
+	ui.updatePosSections = true;
+	ui.updatePosEdScrollBar = true;
 	setSongModifiedFlag();
 
 	if (audioWasntLocked)
@@ -1708,7 +1703,7 @@
 
 void pbPosEdRepSUp(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1715,7 +1710,7 @@
 	if (song.repS < song.len-1)
 	{
 		song.repS++;
-		editor.ui.updatePosSections = true;
+		ui.updatePosSections = true;
 		setSongModifiedFlag();
 	}
 
@@ -1725,7 +1720,7 @@
 
 void pbPosEdRepSDown(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1732,7 +1727,7 @@
 	if (song.repS > 0)
 	{
 		song.repS--;
-		editor.ui.updatePosSections = true;
+		ui.updatePosSections = true;
 		setSongModifiedFlag();
 	}
 
@@ -1745,7 +1740,7 @@
 	if (song.speed == 255)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1771,7 +1766,7 @@
 	if (song.speed == 32)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1797,7 +1792,7 @@
 	if (song.tempo == 31)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1822,7 +1817,7 @@
 	if (song.tempo == 0)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1874,7 +1869,7 @@
 	showTopLeftMainScreen(true);
 	showTopRightMainScreen();
 
-	if (editor.ui.patternEditorShown)
+	if (ui.patternEditorShown)
 		showPatternEditor();
 
 	setSongModifiedFlag();
@@ -1896,7 +1891,7 @@
 	showTopLeftMainScreen(true);
 	showTopRightMainScreen();
 
-	if (editor.ui.patternEditorShown)
+	if (ui.patternEditorShown)
 		showPatternEditor();
 
 	setSongModifiedFlag();
@@ -1919,18 +1914,7 @@
 
 void pbEditPattUp(void)
 {
-	if (songPlaying)
-	{
-		if (song.pattNr == 255)
-			return;
-	}
-	else
-	{
-		if (editor.editPattern == 255)
-			return;
-	}
-
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1941,8 +1925,8 @@
 			song.pattNr++;
 			updatePtnLen();
 
-			editor.ui.updatePatternEditor = true;
-			editor.ui.updatePosSections = true;
+			ui.updatePatternEditor = true;
+			ui.updatePosSections = true;
 		}
 	}
 	else
@@ -1954,8 +1938,8 @@
 			song.pattNr = editor.editPattern;
 			updatePtnLen();
 
-			editor.ui.updatePatternEditor = true;
-			editor.ui.updatePosSections = true;
+			ui.updatePatternEditor = true;
+			ui.updatePosSections = true;
 		}
 	}
 
@@ -1965,18 +1949,7 @@
 
 void pbEditPattDown(void)
 {
-	if (songPlaying)
-	{
-		if (song.pattNr == 0)
-			return;
-	}
-	else
-	{
-		if (editor.editPattern == 0)
-			return;
-	}
-
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -1987,8 +1960,8 @@
 			song.pattNr--;
 			updatePtnLen();
 
-			editor.ui.updatePatternEditor = true;
-			editor.ui.updatePosSections = true;
+			ui.updatePatternEditor = true;
+			ui.updatePosSections = true;
 		}
 	}
 	else
@@ -2000,8 +1973,8 @@
 			song.pattNr = editor.editPattern;
 			updatePtnLen();
 
-			editor.ui.updatePatternEditor = true;
-			editor.ui.updatePosSections = true;
+			ui.updatePatternEditor = true;
+			ui.updatePosSections = true;
 		}
 	}
 
@@ -2011,27 +1984,21 @@
 
 void pbPattLenUp(void)
 {
-	bool audioWasntLocked;
-	uint16_t pattLen;
-
-	if (pattLens[editor.editPattern] >= 256)
+	const uint16_t pattLen = pattLens[editor.editPattern];
+	if (pattLen >= 256)
 		return;
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
+	
+	setPatternLen(editor.editPattern, pattLen + 1);
+	checkMarkLimits();
 
-	pattLen = pattLens[editor.editPattern];
-	if (pattLen < 256)
-	{
-		setPatternLen(editor.editPattern, pattLen + 1);
-		checkMarkLimits();
+	ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
+	setSongModifiedFlag();
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
-		setSongModifiedFlag();
-	}
-
 	if (audioWasntLocked)
 		unlockAudio();
 }
@@ -2038,27 +2005,21 @@
 
 void pbPattLenDown(void)
 {
-	bool audioWasntLocked;
-	uint16_t pattLen;
-
-	if (pattLens[editor.editPattern] <= 1)
+	const uint16_t pattLen = pattLens[editor.editPattern];
+	if (pattLen <= 1)
 		return;
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
+	
+	setPatternLen(editor.editPattern, pattLen - 1);
+	checkMarkLimits();
 
-	pattLen = pattLens[editor.editPattern];
-	if (pattLen > 1)
-	{
-		setPatternLen(editor.editPattern, pattLen - 1);
-		checkMarkLimits();
+	ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
+	setSongModifiedFlag();
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
-		setSongModifiedFlag();
-	}
-
 	if (audioWasntLocked)
 		unlockAudio();
 }
@@ -2076,7 +2037,7 @@
 		songPos = song.len - 1;
 
 	// clear
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		clearRect(8,  4, 39, 16);
 		fillRect(8, 23, 39, 7, PAL_DESKTOP);
@@ -2098,7 +2059,7 @@
 
 		assert(entry < 256);
 
-		if (editor.ui.extended)
+		if (ui.extended)
 		{
 			pattTwoHexOut(8,  4 + (y * 9), (uint8_t)entry, color1);
 			pattTwoHexOut(32, 4 + (y * 9), song.songTab[entry], color1);
@@ -2113,7 +2074,7 @@
 	assert(songPos < 256);
 
 	// middle
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		pattTwoHexOut(8,  23, (uint8_t)songPos, color2);
 		pattTwoHexOut(32, 23, song.songTab[songPos], color2);
@@ -2131,7 +2092,7 @@
 		if (entry >= song.len)
 			break;
 
-		if (editor.ui.extended)
+		if (ui.extended)
 		{
 			pattTwoHexOut(8,  33 + (y * 9), (uint8_t)entry, color1);
 			pattTwoHexOut(32, 33 + (y * 9), song.songTab[entry], color1);
@@ -2148,7 +2109,7 @@
 {
 	int16_t x, y;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		x = 165;
 		y = 5;
@@ -2166,7 +2127,7 @@
 {
 	int16_t x, y;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		x = 165;
 		y = 19;
@@ -2185,7 +2146,7 @@
 	char str[4];
 	const char *strOut;
 	
-	if (editor.ui.extended)
+	if (ui.extended)
 		return;
 
 	if (val <= 255)
@@ -2210,7 +2171,7 @@
 
 void drawSongSpeed(uint16_t val)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		return;
 
 	if (val > 99)
@@ -2223,7 +2184,7 @@
 {
 	int16_t x, y;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		x = 252;
 		y = 39;
@@ -2241,7 +2202,7 @@
 {
 	int16_t x, y;
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		x = 326;
 		y = 39;
@@ -2257,7 +2218,7 @@
 
 void drawGlobalVol(uint16_t val)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		return;
 
 	assert(val <= 64);
@@ -2342,7 +2303,7 @@
 	int8_t i;
 	int16_t y;
 
-	if (editor.ui.extended) // extended pattern editor
+	if (ui.extended) // extended pattern editor
 	{
 		//INSTRUMENTS
 
@@ -2449,13 +2410,13 @@
 {
 	uint16_t i;
 
-	if (!editor.ui.instrSwitcherShown)
+	if (!ui.instrSwitcherShown)
 		return;
 
 	for (i = 0; i < 8; i++)
 		showTextBox(TB_INST1 + i);
 
-	if (editor.ui.extended)
+	if (ui.extended)
 	{
 		hidePushButton(PB_SAMPLE_LIST_UP);
 		hidePushButton(PB_SAMPLE_LIST_DOWN);
@@ -2531,7 +2492,7 @@
 
 	updateTextBoxPointers();
 
-	if (editor.ui.instrSwitcherShown)
+	if (ui.instrSwitcherShown)
 	{
 		updateInstrumentSwitcher();
 		for (uint16_t i = 0; i < 8; i++)
@@ -2755,9 +2716,9 @@
 
 	updateSampleEditorSample();
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		updateSampleEditor();
-	else if (editor.ui.instEditorShown || editor.ui.instEditorExtShown)
+	else if (ui.instEditorShown || ui.instEditorExtShown)
 		updateInstEditor();
 
 	unlockMixerCallback();
@@ -2816,11 +2777,11 @@
 
 void resetChannelOffset(void)
 {
-	editor.ui.pattChanScrollShown = song.antChn > getMaxVisibleChannels();
-	editor.cursor.object = CURSOR_NOTE;
-	editor.cursor.ch = 0;
+	ui.pattChanScrollShown = song.antChn > getMaxVisibleChannels();
+	cursor.object = CURSOR_NOTE;
+	cursor.ch = 0;
 	setScrollBarPos(SB_CHAN_SCROLL, 0, true);
-	editor.ui.channelOffset = 0;
+	ui.channelOffset = 0;
 }
 
 void shrinkPattern(void)
@@ -2859,8 +2820,8 @@
 
 		editor.pattPos = song.pattPos;
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
+		ui.updatePatternEditor = true;
+		ui.updatePosSections = true;
 
 		unlockMixerCallback();
 		setSongModifiedFlag();
@@ -2916,8 +2877,8 @@
 
 		editor.pattPos = song.pattPos;
 
-		editor.ui.updatePatternEditor = true;
-		editor.ui.updatePosSections = true;
+		ui.updatePatternEditor = true;
+		ui.updatePosSections = true;
 
 		unlockMixerCallback();
 		setSongModifiedFlag();
--- a/src/ft2_pattern_ed.h
+++ b/src/ft2_pattern_ed.h
@@ -52,10 +52,12 @@
 	uint16_t upperRowsY, midRowY, lowerRowsY;
 } markCoord_t;
 
-struct pattMark_t
+typedef struct pattMark_t
 {
 	int16_t markX1, markX2, markY1, markY2;
-} pattMark;
+} pattMark_t;
+
+extern pattMark_t pattMark; // ft2_pattern_ed.c
 
 void resetPlaybackTime(void);
 
--- a/src/ft2_pushbuttons.c
+++ b/src/ft2_pushbuttons.c
@@ -29,6 +29,7 @@
 #include "ft2_edit.h"
 #include "ft2_sample_ed_features.h"
 #include "ft2_palette.h"
+#include "ft2_structs.h"
 
 pushButton_t pushButtons[NUM_PUSHBUTTONS] =
 {
@@ -335,7 +336,7 @@
 
 	// ------ CONFIG MISCELLANEOUS PUSHBUTTONS ------
 	//x,   y,   w,  h,  p, d, text #1,                         text #2, funcOnDown,          funcOnUp
-	{ 113, 155, 93, 16, 0, 0, editor.ui.fullscreenButtonText,  NULL,    NULL,                toggleFullScreen },
+	{ 113, 155, 93, 16, 0, 0, ui.fullscreenButtonText,  NULL,    NULL,                toggleFullScreen },
 	{ 370, 121, 18, 13, 1, 4, ARROW_UP_STRING,                 NULL,    configQuantizeUp,    NULL },
 	{ 387, 121, 18, 13, 1, 4, ARROW_DOWN_STRING,               NULL,    configQuantizeDown,  NULL },
 	{ 594, 106, 18, 13, 1, 4, ARROW_UP_STRING,                 NULL,    configMIDIChnUp,     NULL },
@@ -560,7 +561,7 @@
 	uint16_t start, end;
 	pushButton_t *pushButton;
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 	{
 		// if a system request is open, only test the first eight pushbuttons (reserved)
 		start = 0;
--- a/src/ft2_radiobuttons.c
+++ b/src/ft2_radiobuttons.c
@@ -16,6 +16,7 @@
 #include "ft2_mouse.h"
 #include "ft2_wav_renderer.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 radioButton_t radioButtons[NUM_RADIOBUTTONS] =
 {
@@ -321,7 +322,7 @@
 {
 	radioButton_t *radioButton;
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 		return false;
 
 	for (uint16_t i = 0; i < NUM_RADIOBUTTONS; i++)
--- a/src/ft2_replayer.c
+++ b/src/ft2_replayer.c
@@ -19,6 +19,7 @@
 #include "ft2_mouse.h"
 #include "ft2_sample_loader.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 /* This is a *huge* mess, directly ported from the original FT2 code (and modified).
 ** You will experience a lot of headaches if you dig into it...
@@ -97,17 +98,14 @@
 
 void resetChannels(void)
 {
-	bool audioWasntLocked;
-	stmTyp *ch;
-
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
 	memset(stm, 0, sizeof (stm));
-	for (uint8_t i = 0; i < MAX_VOICES; i++)
+	for (int32_t i = 0; i < MAX_VOICES; i++)
 	{
-		ch = &stm[i];
+		stmTyp *ch = &stm[i];
 
 		ch->instrSeg = instr[0];
 		ch->status = IS_Vol;
@@ -153,14 +151,11 @@
 
 void setPatternLen(uint16_t nr, int16_t len)
 {
-	bool audioWasntLocked;
-
 	assert(nr < MAX_PATTERNS);
-
 	if ((len < 1 || len > MAX_PATT_LEN) || len == pattLens[nr])
 		return;
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -181,8 +176,8 @@
 	if (audioWasntLocked)
 		unlockAudio();
 
-	editor.ui.updatePatternEditor = true;
-	editor.ui.updatePosSections = true;
+	ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
 }
 
 int16_t getUsedSamples(int16_t nr)
@@ -298,7 +293,7 @@
 	resumeAudio();
 
 	// update "frequency table" radiobutton, if it's shown
-	if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
+	if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
 		setConfigIORadioButtonStates();
 }
 
@@ -2185,7 +2180,7 @@
 
 void resetMusic(void)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -2206,7 +2201,7 @@
 
 void setPos(int16_t songPos, int16_t pattPos, bool resetTimer)
 {
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -2236,7 +2231,7 @@
 		if (pattPos > -1)
 		{
 			editor.pattPos = (uint8_t)pattPos;
-			editor.ui.updatePatternEditor = true;
+			ui.updatePatternEditor = true;
 		}
 
 		if (songPos > -1)
@@ -2243,7 +2238,7 @@
 		{
 			editor.editPattern = (uint8_t)song.pattNr;
 			editor.songPos = song.songPos;
-			editor.ui.updatePosSections = true;
+			ui.updatePosSections = true;
 		}
 	}
 
@@ -2373,19 +2368,16 @@
 
 bool allocateInstr(int16_t nr)
 {
-	bool audioWasntLocked;
-	instrTyp *p;
-
 	if (instr[nr] != NULL)
 		return false; // already allocated
 
-	p = (instrTyp *)malloc(sizeof (instrTyp));
+	instrTyp *p = (instrTyp *)malloc(sizeof (instrTyp));
 	if (p == NULL)
 		return false;
 
 	memset(p, 0, sizeof (instrTyp));
 
-	for (int8_t i = 0; i < 16; i++) // set standard sample pan/vol
+	for (int32_t i = 0; i < MAX_SMP_PER_INST; i++) // set standard sample pan/vol
 	{
 		p->samp[i].pan = 128;
 		p->samp[i].vol = 64;
@@ -2393,7 +2385,7 @@
 
 	setStdEnvelope(p, 0, 3);
 
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -2592,50 +2584,50 @@
 		else if (song.antChn >= 12) pageLen = 12;
 	}
 
-	editor.ui.numChannelsShown = pageLen;
+	ui.numChannelsShown = pageLen;
 	if (song.antChn == 2)
-		editor.ui.numChannelsShown = 2;
+		ui.numChannelsShown = 2;
 
 	if (config.ptnMaxChannels == 0)
 	{
-		if (editor.ui.numChannelsShown > 4)
-			editor.ui.numChannelsShown = 4;
+		if (ui.numChannelsShown > 4)
+			ui.numChannelsShown = 4;
 	}
 	else if (config.ptnMaxChannels == 1)
 	{
-		if (editor.ui.numChannelsShown > 6)
-			editor.ui.numChannelsShown = 6;
+		if (ui.numChannelsShown > 6)
+			ui.numChannelsShown = 6;
 	}
 	else if (config.ptnMaxChannels == 2)
 	{
-		if (editor.ui.numChannelsShown > 8)
-			editor.ui.numChannelsShown = 8;
+		if (ui.numChannelsShown > 8)
+			ui.numChannelsShown = 8;
 	}
 	else if (config.ptnMaxChannels == 3)
 	{
 		if (config.ptnS3M)
 		{
-			if (editor.ui.numChannelsShown > 8)
-				editor.ui.numChannelsShown = 8;
+			if (ui.numChannelsShown > 8)
+				ui.numChannelsShown = 8;
 		}
 		else
 		{
-			if (editor.ui.numChannelsShown > 12)
-				editor.ui.numChannelsShown = 12;
+			if (ui.numChannelsShown > 12)
+				ui.numChannelsShown = 12;
 		}
 	}
 
-	editor.ui.pattChanScrollShown = song.antChn > getMaxVisibleChannels();
+	ui.pattChanScrollShown = song.antChn > getMaxVisibleChannels();
 
-	if (editor.ui.patternEditorShown)
+	if (ui.patternEditorShown)
 	{
-		if (editor.ui.channelOffset > song.antChn-editor.ui.numChannelsShown)
-			setScrollBarPos(SB_CHAN_SCROLL, song.antChn - editor.ui.numChannelsShown, true);
+		if (ui.channelOffset > song.antChn-ui.numChannelsShown)
+			setScrollBarPos(SB_CHAN_SCROLL, song.antChn - ui.numChannelsShown, true);
 	}
 
-	if (editor.ui.pattChanScrollShown)
+	if (ui.pattChanScrollShown)
 	{
-		if (editor.ui.patternEditorShown)
+		if (ui.patternEditorShown)
 		{
 			showScrollBar(SB_CHAN_SCROLL);
 			showPushButton(PB_CHAN_SCROLL_LEFT);
@@ -2643,7 +2635,7 @@
 		}
 
 		setScrollBarEnd(SB_CHAN_SCROLL, song.antChn);
-		setScrollBarPageLength(SB_CHAN_SCROLL, editor.ui.numChannelsShown);
+		setScrollBarPageLength(SB_CHAN_SCROLL, ui.numChannelsShown);
 	}
 	else
 	{
@@ -2653,11 +2645,11 @@
 
 		setScrollBarPos(SB_CHAN_SCROLL, 0, false);
 
-		editor.ui.channelOffset = 0;
+		ui.channelOffset = 0;
 	}
 
-	if (editor.cursor.ch >= editor.ui.channelOffset+editor.ui.numChannelsShown)
-		editor.cursor.ch = editor.ui.channelOffset+editor.ui.numChannelsShown - 1;
+	if (cursor.ch >= ui.channelOffset+ui.numChannelsShown)
+		cursor.ch = ui.channelOffset+ui.numChannelsShown - 1;
 }
 
 void conv8BitSample(int8_t *p, int32_t len, bool stereo)
@@ -2822,8 +2814,8 @@
 
 	unlockMixerCallback();
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
+	ui.updatePatternEditor = true;
 }
 
 void stopPlaying(void)
@@ -2862,13 +2854,13 @@
 
 	memset(editor.keyOnTab, 0, sizeof (editor.keyOnTab));
 
-	editor.ui.updatePosSections = true;
-	editor.ui.updatePatternEditor = true;
+	ui.updatePosSections = true;
+	ui.updatePatternEditor = true;
 
 	// certain non-FT2 fixes
 	song.timer = editor.timer = 1;
 	song.globVol = editor.globalVol = 64;
-	editor.ui.drawGlobVolFlag = true;
+	ui.drawGlobVolFlag = true;
 }
 
 // from keyboard/smp. ed.
@@ -3064,16 +3056,13 @@
 
 void stopVoices(void)
 {
-	bool audioWasntLocked;
-	stmTyp *ch;
-
-	audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
-	for (uint8_t i = 0; i < MAX_VOICES; i++)
+	for (int32_t i = 0; i < MAX_VOICES; i++)
 	{
-		ch = &stm[i];
+		stmTyp *ch = &stm[i];
 
 		lastChInstr[i].sampleNr = 255;
 		lastChInstr[i].instrNr = 255;
@@ -3121,7 +3110,7 @@
 	if (song.songPos == 0)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -3137,7 +3126,7 @@
 	if (song.songPos == song.len-1)
 		return;
 
-	bool audioWasntLocked = !audio.locked;
+	const bool audioWasntLocked = !audio.locked;
 	if (audioWasntLocked)
 		lockAudio();
 
@@ -3162,7 +3151,7 @@
 	updateTextBoxPointers();
 	updateNewInstrument();
 
-	if (editor.ui.advEditShown)
+	if (ui.advEditShown)
 		updateAdvEdit();
 }
 
@@ -3182,7 +3171,7 @@
 	updateTextBoxPointers();
 	updateNewInstrument();
 
-	if (editor.ui.advEditShown)
+	if (ui.advEditShown)
 		updateAdvEdit();
 }
 
@@ -3304,7 +3293,7 @@
 	if (chSyncEntry != NULL)
 	{
 		handleScopesFromChQueue(chSyncEntry, scopeUpdateStatus);
-		editor.ui.drawReplayerPianoFlag = true;
+		ui.drawReplayerPianoFlag = true;
 	}
 
 	if (!songPlaying || pattSyncEntry == NULL)
@@ -3317,25 +3306,25 @@
 	if (editor.speed != pattSyncEntry->speed)
 	{
 		editor.speed = pattSyncEntry->speed;
-		editor.ui.drawBPMFlag = true;
+		ui.drawBPMFlag = true;
 	}
 
 	if (editor.tempo != pattSyncEntry->tempo)
 	{
 		editor.tempo = pattSyncEntry->tempo;
-		editor.ui.drawSpeedFlag = true;
+		ui.drawSpeedFlag = true;
 	}
 
 	if (editor.globalVol != pattSyncEntry->globalVol)
 	{
 		editor.globalVol = pattSyncEntry->globalVol;
-		editor.ui.drawGlobVolFlag = true;
+		ui.drawGlobVolFlag = true;
 	}
 
 	if (editor.songPos != pattSyncEntry->songPos)
 	{
 		editor.songPos = pattSyncEntry->songPos;
-		editor.ui.drawPosEdFlag = true;
+		ui.drawPosEdFlag = true;
 	}
 
 	// somewhat of a kludge...
@@ -3344,10 +3333,10 @@
 		// set pattern number
 		editor.editPattern = editor.tmpPattern = pattSyncEntry->pattern;
 		checkMarkLimits();
-		editor.ui.drawPattNumLenFlag = true;
+		ui.drawPattNumLenFlag = true;
 
 		// set row
 		editor.pattPos = (uint8_t)pattSyncEntry->patternPos;
-		editor.ui.updatePatternEditor = true;
+		ui.updatePatternEditor = true;
 	}
 }
--- a/src/ft2_sample_ed.c
+++ b/src/ft2_sample_ed.c
@@ -23,6 +23,7 @@
 #include "ft2_mouse.h"
 #include "ft2_diskop.h"
 #include "ft2_keyboard.h"
+#include "ft2_structs.h"
 
 static const char sharpNote1Char[12] = { 'C', 'C', 'D', 'D', 'E', 'F', 'F', 'G', 'G', 'A', 'A', 'B' };
 static const char sharpNote2Char[12] = { '-', '#', '-', '#', '-', '-', '#', '-', '#', '-', '#', '-' };
@@ -400,10 +401,10 @@
 	bool showLoopPins = true;
 
 	s = getCurSample();
-	if (s == NULL || s->len <= 0 || s->pek == NULL || (s->typ & 3) == 0 || !editor.ui.sampleEditorShown)
+	if (s == NULL || s->len <= 0 || s->pek == NULL || (s->typ & 3) == 0 || !ui.sampleEditorShown)
 		showLoopPins = false;
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 	{
 		// draw Repeat/Replen. numbers
 		hexOutBg(536, 375, PAL_FORGRND, PAL_DESKTOP, curSmpRepS, 8);
@@ -577,7 +578,7 @@
 	uint32_t *ptr32;
 
 	// very first sample (rx1=0,rx2=0) is the "no range" special case
-	if (!editor.ui.sampleEditorShown || smpEd_ViewSize == 0 || (smpEd_Rx1 == 0 && smpEd_Rx2 == 0))
+	if (!ui.sampleEditorShown || smpEd_ViewSize == 0 || (smpEd_Rx1 == 0 && smpEd_Rx2 == 0))
 		return;
 
 	// test if range is outside of view (passed it by scrolling)
@@ -1084,18 +1085,18 @@
 	}
 
 	// handle updating
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 	{
 		// check if we need to redraw sample data
 		if (forceSmpRedraw || (old_SmpScrPos != smpEd_ScrPos || old_ViewSize != smpEd_ViewSize))
 		{
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				writeWaveform();
 
 			old_SmpScrPos = smpEd_ScrPos;
 			old_ViewSize = smpEd_ViewSize;
 
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				writeRange(); // range was overwritten, draw it again
 
 			smpEd_OldSmpPosLine = -1;
@@ -1114,7 +1115,7 @@
 			smpEd_Rx1 = old_Rx1;
 			smpEd_Rx2 = old_Rx2;
 
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				writeRange();
 
 			// write new range
@@ -1121,7 +1122,7 @@
 			smpEd_Rx1 = tmpRx1;
 			smpEd_Rx2 = tmpRx2;
 
-			if (editor.ui.sampleEditorShown)
+			if (ui.sampleEditorShown)
 				writeRange();
 
 			old_Rx1 = smpEd_Rx1;
@@ -1131,7 +1132,7 @@
 		fixRepeatGadgets();
 	}
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 		fixSampleDrag();
 
 	updateSampleEditor();
@@ -1191,7 +1192,7 @@
 	uint8_t note, typ;
 	int32_t sampleLen;
 
-	if (!editor.ui.sampleEditorShown)
+	if (!ui.sampleEditorShown)
 		return;
 
 	if (instr[editor.curInstr] == NULL)
@@ -1344,17 +1345,17 @@
 
 void sampPlayWave(void)
 {
-	playSample(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0);
+	playSample(cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0);
 }
 
 void sampPlayDisplay(void)
 {
-	playRange(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_ScrPos, smpEd_ViewSize);
+	playRange(cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_ScrPos, smpEd_ViewSize);
 }
 
 void sampPlayRange(void)
 {
-	playRange(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_Rx1, smpEd_Rx2 - smpEd_Rx1);
+	playRange(cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_Rx1, smpEd_Rx2 - smpEd_Rx1);
 }
 
 void showRange(void)
@@ -2813,7 +2814,7 @@
 
 	hideScrollBar(SB_SAMP_SCROLL);
 
-	editor.ui.sampleEditorShown = false;
+	ui.sampleEditorShown = false;
 
 	hideSprite(SPRITE_LEFT_LOOP_PIN);
 	hideSprite(SPRITE_RIGHT_LOOP_PIN);
@@ -2823,7 +2824,7 @@
 {
 	hideSampleEditor();
 
-	if (editor.ui.sampleEditorExtShown)
+	if (ui.sampleEditorExtShown)
 		hideSampleEditorExt();
 
 	showPatternEditor();
@@ -2831,12 +2832,12 @@
 
 void showSampleEditor(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideInstEditor();
 	hidePatternEditor();
-	editor.ui.sampleEditorShown = true;
+	ui.sampleEditorShown = true;
 
 	drawFramework(0,   329, 632, 17, FRAMEWORK_TYPE1);
 	drawFramework(0,   346, 115, 54, FRAMEWORK_TYPE1);
@@ -2903,7 +2904,7 @@
 {
 	hideInstEditor();
 
-	if (editor.ui.sampleEditorShown)
+	if (ui.sampleEditorShown)
 	{
 		exitSampleEditor();
 	}
@@ -2980,7 +2981,7 @@
 {
 	// update sample editor
 
-	if (!editor.ui.sampleEditorShown || editor.samplingAudioFlag)
+	if (!ui.sampleEditorShown || editor.samplingAudioFlag)
 		return;
 
 	if (writeSampleFlag)
@@ -3262,9 +3263,9 @@
 
 	if (!mouseButtonHeld)
 	{
-		editor.ui.rightLoopPinMoving  = false;
-		editor.ui.leftLoopPinMoving = false;
-		editor.ui.sampleDataOrLoopDrag = -1;
+		ui.rightLoopPinMoving  = false;
+		ui.leftLoopPinMoving = false;
+		ui.sampleDataOrLoopDrag = -1;
 
 		mouseXOffs = 0;
 		lastMouseX = mx;
@@ -3282,12 +3283,12 @@
 				{
 					mouseXOffs = (leftLoopPinPos + 8) - mx;
 
-					editor.ui.sampleDataOrLoopDrag = true;
+					ui.sampleDataOrLoopDrag = true;
 
 					setLeftLoopPinState(true);
 					lastMouseX = mx;
 
-					editor.ui.leftLoopPinMoving = true;
+					ui.leftLoopPinMoving = true;
 					return;
 				}
 			}
@@ -3298,12 +3299,12 @@
 				{
 					mouseXOffs = (rightLoopPinPos + 8) - mx;
 
-					editor.ui.sampleDataOrLoopDrag = true;
+					ui.sampleDataOrLoopDrag = true;
 
 					setRightLoopPinState(true);
 					lastMouseX = mx;
 
-					editor.ui.rightLoopPinMoving = true;
+					ui.rightLoopPinMoving = true;
 					return;
 				}
 			}
@@ -3310,7 +3311,7 @@
 
 			// mark data
 			lastMouseX = mx;
-			editor.ui.sampleDataOrLoopDrag = mx;
+			ui.sampleDataOrLoopDrag = mx;
 
 			setSampleRange(mx, mx);
 		}
@@ -3317,7 +3318,7 @@
 		else if (mouse.rightButtonPressed)
 		{
 			// edit data
-			editor.ui.sampleDataOrLoopDrag = true;
+			ui.sampleDataOrLoopDrag = true;
 			editSampleData(false);
 		}
 
@@ -3334,27 +3335,27 @@
 	{
 		if (mouse.leftButtonPressed)
 		{
-			if (editor.ui.leftLoopPinMoving)
+			if (ui.leftLoopPinMoving)
 			{
 				lastMouseX = mx;
 				setLeftLoopPinPos(mouseXOffs + mx);
 			}
-			else if (editor.ui.rightLoopPinMoving)
+			else if (ui.rightLoopPinMoving)
 			{
 				lastMouseX = mx;
 				setRightLoopPinPos(mouseXOffs + mx);
 			}
-			else if (editor.ui.sampleDataOrLoopDrag >= 0)
+			else if (ui.sampleDataOrLoopDrag >= 0)
 			{
 				// mark data
 				lastMouseX = mx;
 
-				if (lastMouseX > editor.ui.sampleDataOrLoopDrag)
-					setSampleRange(editor.ui.sampleDataOrLoopDrag, mx);
-				else if (lastMouseX == editor.ui.sampleDataOrLoopDrag)
-					setSampleRange(editor.ui.sampleDataOrLoopDrag, editor.ui.sampleDataOrLoopDrag);
-				else if (lastMouseX < editor.ui.sampleDataOrLoopDrag)
-					setSampleRange(mx, editor.ui.sampleDataOrLoopDrag);
+				if (lastMouseX > ui.sampleDataOrLoopDrag)
+					setSampleRange(ui.sampleDataOrLoopDrag, mx);
+				else if (lastMouseX == ui.sampleDataOrLoopDrag)
+					setSampleRange(ui.sampleDataOrLoopDrag, ui.sampleDataOrLoopDrag);
+				else if (lastMouseX < ui.sampleDataOrLoopDrag)
+					setSampleRange(mx, ui.sampleDataOrLoopDrag);
 			}
 		}
 	}
@@ -3409,20 +3410,20 @@
 	hideTopScreen();
 	showTopScreen(false);
 
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
-	if (!editor.ui.sampleEditorShown)
+	if (!ui.sampleEditorShown)
 		showSampleEditor();
 
-	editor.ui.sampleEditorExtShown = true;
-	editor.ui.scopesShown = false;
+	ui.sampleEditorExtShown = true;
+	ui.scopesShown = false;
 	drawSampleEditorExt();
 }
 
 void hideSampleEditorExt(void)
 {
-	editor.ui.sampleEditorExtShown = false;
+	ui.sampleEditorExtShown = false;
 
 	hidePushButton(PB_SAMP_EXT_CLEAR_COPYBUF);
 	hidePushButton(PB_SAMP_EXT_CONV);
@@ -3437,13 +3438,13 @@
 	hidePushButton(PB_SAMP_EXT_RESAMPLE);
 	hidePushButton(PB_SAMP_EXT_MIX_SAMPLE);
 
-	editor.ui.scopesShown = true;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
 void toggleSampleEditorExt(void)
 {
-	if (editor.ui.sampleEditorExtShown)
+	if (ui.sampleEditorExtShown)
 		hideSampleEditorExt();
 	else
 		showSampleEditorExt();
--- a/src/ft2_sample_ed_features.c
+++ b/src/ft2_sample_ed_features.c
@@ -24,6 +24,7 @@
 #include "ft2_sample_ed.h"
 #include "ft2_keyboard.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 static volatile bool stopThread;
 
@@ -35,14 +36,14 @@
 
 static void pbExit(void)
 {
-	editor.ui.sysReqShown = false;
+	ui.sysReqShown = false;
 	exitFlag = true;
 }
 
 static void windowOpen(void)
 {
-	editor.ui.sysReqShown = true;
-	editor.ui.sysReqEnterPressed = false;
+	ui.sysReqShown = true;
+	ui.sysReqEnterPressed = false;
 
 	unstuckLastUsedGUIElement();
 	SDL_EventState(SDL_DROPFILE, SDL_DISABLE);
@@ -108,7 +109,7 @@
 	{
 		outOfMemory = true;
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -188,7 +189,7 @@
 	setSongModifiedFlag();
 	setMouseBusy(false);
 
-	editor.ui.sysReqShown = false;
+	ui.sysReqShown = false;
 	return true;
 }
 
@@ -346,10 +347,10 @@
 	outOfMemory = false;
 
 	exitFlag = false;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		readInput();
-		if (editor.ui.sysReqEnterPressed)
+		if (ui.sysReqEnterPressed)
 			pbDoResampling();
 
 		setSyncedReplayerVars();
@@ -456,7 +457,7 @@
 
 	if (echo_nEcho < 1)
 	{
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -472,7 +473,7 @@
 
 	if (nEchoes < 1)
 	{
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -499,7 +500,7 @@
 	{
 		outOfMemory = true;
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return false;
 	}
 
@@ -614,7 +615,7 @@
 	setSongModifiedFlag();
 	setMouseBusy(false);
 
-	editor.ui.sysReqShown = false;
+	ui.sysReqShown = false;
 	return true;
 }
 
@@ -848,10 +849,10 @@
 	outOfMemory = false;
 
 	exitFlag = false;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		readInput();
-		if (editor.ui.sysReqEnterPressed)
+		if (ui.sysReqEnterPressed)
 			pbCreateEcho();
 
 		setSyncedReplayerVars();
@@ -895,7 +896,7 @@
 	if (destIns == mixIns && destSmp == mixSmp)
 	{
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -948,7 +949,7 @@
 	if (maxLen <= 0)
 	{
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -957,7 +958,7 @@
 	{
 		outOfMemory = true;
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -965,7 +966,7 @@
 	{
 		outOfMemory = true;
 		setMouseBusy(false);
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return true;
 	}
 
@@ -1023,7 +1024,7 @@
 	setSongModifiedFlag();
 	setMouseBusy(false);
 
-	editor.ui.sysReqShown = false;
+	ui.sysReqShown = false;
 	return true;
 }
 
@@ -1165,10 +1166,10 @@
 	outOfMemory = false;
 
 	exitFlag = false;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		readInput();
-		if (editor.ui.sysReqEnterPressed)
+		if (ui.sysReqEnterPressed)
 			pbMix();
 
 		setSyncedReplayerVars();
@@ -1346,7 +1347,7 @@
 
 applyVolumeExit:
 	setMouseBusy(false);
-	editor.ui.sysReqShown = false;
+	ui.sysReqShown = false;
 
 	(void)ptr;
 	return true;
@@ -1356,7 +1357,7 @@
 {
 	if (vol_StartVol == 100 && vol_EndVol == 100)
 	{
-		editor.ui.sysReqShown = false;
+		ui.sysReqShown = false;
 		return; // no volume change to be done
 	}
 
@@ -1692,10 +1693,10 @@
 	windowOpen();
 
 	exitFlag = false;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		readInput();
-		if (editor.ui.sysReqEnterPressed)
+		if (ui.sysReqEnterPressed)
 		{
 			pbApplyVolume();
 			keyb.ignoreCurrKeyUp = true; // don't handle key up event for this key release
@@ -1705,7 +1706,7 @@
 		handleRedrawing();
 
 		// this is needed for the "Get maximum scale" button
-		if (editor.ui.setMouseIdle) mouseAnimOff();
+		if (ui.setMouseIdle) mouseAnimOff();
 
 		drawSampleVolumeBox();
 		setScrollBarPos(0, 500 + vol_StartVol, false);
--- a/src/ft2_sample_loader.c
+++ b/src/ft2_sample_loader.c
@@ -14,6 +14,7 @@
 #include "ft2_sample_ed.h"
 #include "ft2_mouse.h"
 #include "ft2_diskop.h"
+#include "ft2_structs.h"
 
 /* All of these routines were written from scratch and were not present
 ** in original FT2.
--- a/src/ft2_sample_saver.c
+++ b/src/ft2_sample_saver.c
@@ -14,6 +14,7 @@
 #include "ft2_sample_ed.h"
 #include "ft2_diskop.h"
 #include "ft2_mouse.h"
+#include "ft2_structs.h"
 
 typedef struct wavHeader_t
 {
--- a/src/ft2_sampling.c
+++ b/src/ft2_sampling.c
@@ -11,6 +11,7 @@
 #include "ft2_sample_ed.h"
 #include "ft2_video.h"
 #include "ft2_sampling.h"
+#include "ft2_structs.h"
 
 // these may very well change after opening the audio input device
 #define SAMPLING_BUFFER_SIZE 2048
--- a/src/ft2_scopes.c
+++ b/src/ft2_scopes.c
@@ -21,6 +21,7 @@
 #include "ft2_video.h"
 #include "ft2_scopedraw.h"
 #include "ft2_tables.h"
+#include "ft2_structs.h"
 
 enum
 {
@@ -273,7 +274,7 @@
 	const uint16_t *scopeLens;
 	int32_t i, chansPerRow, chanToToggle;
 
-	if (!editor.ui.scopesShown)
+	if (!ui.scopesShown)
 		return false;
 
 	if (mouse.y >= 95 && mouse.y <= 169 && mouse.x >= 3 && mouse.x <= 288)
--- a/src/ft2_scrollbars.c
+++ b/src/ft2_scrollbars.c
@@ -19,6 +19,7 @@
 #include "ft2_mouse.h"
 #include "ft2_video.h"
 #include "ft2_palette.h"
+#include "ft2_structs.h"
 
 /* Prevent the scrollbar thumbs from being so small that
 ** it's difficult to use them. In units of pixels.
@@ -501,7 +502,7 @@
 	double dTmp;
 	scrollBar_t *scrollBar;
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 	{
 		// if a system request is open, only test the first three scrollbars (reserved)
 		start = 0;
--- /dev/null
+++ b/src/ft2_structs.c
@@ -1,0 +1,6 @@
+#include "ft2_structs.h"
+
+cpu_t cpu;
+editor_t editor;
+ui_t ui;
+cursor_t cursor;
--- /dev/null
+++ b/src/ft2_structs.h
@@ -1,0 +1,82 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "ft2_header.h"
+
+typedef struct cpu_t
+{
+	bool hasSSE, hasSSE2;
+} cpu_t;
+
+typedef struct editor_t
+{
+	UNICHAR binaryPathU[PATH_MAX + 2];
+	UNICHAR *tmpFilenameU, *tmpInstrFilenameU; // used by saving/loading threads
+	UNICHAR *configFileLocation, *audioDevConfigFileLocation, *midiConfigFileLocation;
+
+	volatile bool mainLoopOngoing;
+	volatile bool busy, scopeThreadMutex, programRunning, wavIsRendering, wavReachedEndFlag;
+	volatile bool updateCurSmp, updateCurInstr, diskOpReadDir, diskOpReadDone, updateWindowTitle;
+	volatile uint8_t loadMusicEvent;
+	volatile FILE *wavRendererFileHandle;
+
+	bool autoPlayOnDrop, trimThreadWasDone, throwExit, editTextFlag;
+	bool copyMaskEnable, diskOpReadOnOpen, samplingAudioFlag, editSampleFlag;
+	bool instrBankSwapped, chnMode[MAX_VOICES], NI_Play;
+
+	uint8_t curPlayInstr, curPlaySmp, curSmpChannel, currPanEnvPoint, currVolEnvPoint;
+	uint8_t copyMask[5], pasteMask[5], transpMask[5], smpEd_NoteNr, instrBankOffset, sampleBankOffset;
+	uint8_t srcInstr, curInstr, srcSmp, curSmp, currHelpScreen, currConfigScreen, textCursorBlinkCounter;
+	uint8_t keyOnTab[MAX_VOICES], ID_Add, curOctave;
+	uint8_t sampleSaveMode, moduleSaveMode, ptnJumpPos[4];
+	int16_t globalVol, songPos, pattPos;
+	uint16_t tmpPattern, editPattern, speed, tempo, timer, ptnCursorY;
+	int32_t keyOffNr, keyOffTime[MAX_VOICES];
+	uint32_t framesPassed, wavRendererTime;
+	double dPerfFreq, dPerfFreqMulMicro, dPerfFreqMulMs;
+} editor_t;
+
+typedef struct ui_t
+{
+	volatile bool setMouseBusy, setMouseIdle;
+	bool sysReqEnterPressed;
+	char fullscreenButtonText[24];
+
+	// all screens
+	bool extended, sysReqShown;
+
+	// top screens
+	bool instrSwitcherShown, aboutScreenShown, helpScreenShown, configScreenShown;
+	bool scopesShown, diskOpShown, nibblesShown, transposeShown, instEditorExtShown;
+	bool sampleEditorExtShown, advEditShown, wavRendererShown, trimScreenShown;
+	bool drawBPMFlag, drawSpeedFlag, drawGlobVolFlag, drawPosEdFlag, drawPattNumLenFlag;
+	bool updatePosSections, updatePosEdScrollBar;
+	uint8_t oldTopLeftScreen;
+
+	// bottom screens
+	bool patternEditorShown, instEditorShown, sampleEditorShown, pattChanScrollShown;
+	bool leftLoopPinMoving, rightLoopPinMoving;
+	bool drawReplayerPianoFlag, drawPianoFlag, updatePatternEditor;
+	uint8_t channelOffset, numChannelsShown, maxVisibleChannels;
+	uint16_t patternChannelWidth;
+	int32_t sampleDataOrLoopDrag;
+
+	// backup flag for when entering/exiting extended pattern editor (TODO: this is lame and shouldn't be hardcoded)
+	bool _aboutScreenShown, _helpScreenShown, _configScreenShown, _diskOpShown;
+	bool _nibblesShown, _transposeShown, _instEditorShown;
+	bool _instEditorExtShown, _sampleEditorExtShown, _patternEditorShown;
+	bool _sampleEditorShown, _advEditShown, _wavRendererShown, _trimScreenShown;
+	// -------------------------------------------------------------------------
+} ui_t;
+
+typedef struct cursor_t
+{
+	uint8_t ch;
+	int8_t object;
+} cursor_t;
+
+extern cpu_t cpu;
+extern editor_t editor;
+extern ui_t ui;
+extern cursor_t cursor;
--- a/src/ft2_sysreqs.c
+++ b/src/ft2_sysreqs.c
@@ -6,6 +6,8 @@
 #include "ft2_keyboard.h"
 #include "ft2_textboxes.h"
 #include "ft2_video.h"
+#include "ft2_sysreqs.h"
+#include "ft2_structs.h"
 
 #define SYSTEM_REQUEST_H 67
 #define SYSTEM_REQUEST_Y 249
@@ -13,6 +15,8 @@
 
 #define NUM_SYSREQ_TYPES 10
 
+okBoxData_t okBoxData; // globalized
+
 static char *buttonText[NUM_SYSREQ_TYPES][5] =
 {
 	{ "OK", "","","","" },
@@ -75,8 +79,8 @@
 	const uint16_t h = SYSTEM_REQUEST_H;
 	uint16_t x, y;
 
-	x = (SCREEN_W - w) / 2;
-	y = editor.ui.extended ? 91 : SYSTEM_REQUEST_Y;
+	x = (SCREEN_W - w) >> 1;
+	y = ui.extended ? 91 : SYSTEM_REQUEST_Y;
 
 	// main fill
 	fillRect(x + 1, y + 1, w - 2, h - 2, PAL_BUTTONS);
@@ -168,12 +172,12 @@
 	if (mouse.mode != MOUSE_MODE_NORMAL)
 		setMouseMode(MOUSE_MODE_NORMAL);
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 		return 0;
 
 	SDL_EventState(SDL_DROPFILE, SDL_DISABLE);
 
-	editor.ui.sysReqShown = true;
+	ui.sysReqShown = true;
 	mouseAnimOff();
 
 	oldLastUsedObjectID = mouse.lastUsedObjectID;
@@ -204,7 +208,7 @@
 	x = (SCREEN_W - wlen) >> 1;
 
 	// the box y position differs in extended pattern editor mode
-	y = editor.ui.extended ? SYSTEM_REQUEST_Y_EXT : SYSTEM_REQUEST_Y;
+	y = ui.extended ? SYSTEM_REQUEST_Y_EXT : SYSTEM_REQUEST_Y;
 
 	// set up buttons
 	for (i = 0; i < knp; i++)
@@ -250,7 +254,7 @@
 
 	// input/rendering loop
 	returnVal = 0;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		beginFPSCounter();
 		readMouseXY();
@@ -271,12 +275,12 @@
 				if (inputEvent.key.keysym.sym == SDLK_ESCAPE)
 				{
 					returnVal = 0;
-					editor.ui.sysReqShown = false;
+					ui.sysReqShown = false;
 				}
 				else if (inputEvent.key.keysym.sym == SDLK_RETURN)
 				{
 					returnVal = 1;
-					editor.ui.sysReqShown = false;
+					ui.sysReqShown = false;
 					keyb.ignoreCurrKeyUp = true; // don't handle key up event for any keys that were pressed
 				}
 
@@ -285,7 +289,7 @@
 					if (shortCut[typ][i] == inputEvent.key.keysym.sym)
 					{
 						returnVal = i + 1;
-						editor.ui.sysReqShown = false;
+						ui.sysReqShown = false;
 						keyb.ignoreCurrKeyUp = true; // don't handle key up event for any keys that were pressed
 						break;
 					}
@@ -300,7 +304,7 @@
 
 					returnVal = testPushButtonMouseRelease(false) + 1;
 					if (returnVal > 0)
-						editor.ui.sysReqShown = false;
+						ui.sysReqShown = false;
 
 					mouse.lastUsedObjectID = OBJECT_ID_NONE;
 					mouse.lastUsedObjectType = OBJECT_NONE;
@@ -315,11 +319,11 @@
 				}
 			}
 
-			if (!editor.ui.sysReqShown)
+			if (!ui.sysReqShown)
 				break;
 		}
 
-		if (!editor.ui.sysReqShown)
+		if (!ui.sysReqShown)
 			break;
 
 		handleRedrawing();
@@ -378,7 +382,7 @@
 	if (mouse.mode != MOUSE_MODE_NORMAL)
 		setMouseMode(MOUSE_MODE_NORMAL);
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 		return 0;
 
 	oldLastUsedObjectID = mouse.lastUsedObjectID;
@@ -408,7 +412,7 @@
 
 	SDL_EventState(SDL_DROPFILE, SDL_DISABLE);
 
-	editor.ui.sysReqShown = true;
+	ui.sysReqShown = true;
 	mouseAnimOff();
 
 	wlen = textWidth(headline);
@@ -432,7 +436,7 @@
 		wlen = 600;
 
 	// the box y position differs in extended pattern editor mode
-	y = editor.ui.extended ? SYSTEM_REQUEST_Y_EXT : SYSTEM_REQUEST_Y;
+	y = ui.extended ? SYSTEM_REQUEST_Y_EXT : SYSTEM_REQUEST_Y;
 
 	// set further text box settings
 	t->x = (SCREEN_W - TEXTBOX_W) >> 1;
@@ -466,7 +470,7 @@
 
 	// input/rendering loop
 	returnVal = 0;
-	while (editor.ui.sysReqShown)
+	while (ui.sysReqShown)
 	{
 		beginFPSCounter();
 		readMouseXY();
@@ -508,12 +512,12 @@
 				if (inputEvent.key.keysym.sym == SDLK_ESCAPE)
 				{
 					returnVal = 0;
-					editor.ui.sysReqShown = false;
+					ui.sysReqShown = false;
 				}
 				else if (inputEvent.key.keysym.sym == SDLK_RETURN)
 				{
 					returnVal = 1;
-					editor.ui.sysReqShown = false;
+					ui.sysReqShown = false;
 					keyb.ignoreCurrKeyUp = true; // don't handle key up event for any keys that were pressed
 				}
 
@@ -528,7 +532,7 @@
 						if (shortCut[1][i] == inputEvent.key.keysym.sym)
 						{
 							returnVal = i + 1;
-							editor.ui.sysReqShown = false;
+							ui.sysReqShown = false;
 							keyb.ignoreCurrKeyUp = true; // don't handle key up event for any keys that were pressed
 							break;
 						}
@@ -541,7 +545,7 @@
 				{
 					returnVal = testPushButtonMouseRelease(false) + 1;
 					if (returnVal > 0)
-						editor.ui.sysReqShown = false;
+						ui.sysReqShown = false;
 
 					mouse.lastUsedObjectID = OBJECT_ID_NONE;
 					mouse.lastUsedObjectType = OBJECT_NONE;
@@ -556,11 +560,11 @@
 				}
 			}
 
-			if (!editor.ui.sysReqShown)
+			if (!ui.sysReqShown)
 				break;
 		}
 
-		if (!editor.ui.sysReqShown)
+		if (!ui.sysReqShown)
 			break;
 
 		handleRedrawing();
@@ -648,7 +652,7 @@
 
 int16_t quitBox(bool skipQuitMsg)
 {
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 		return 0;
 
 	if (!song.isModified && skipQuitMsg)
--- a/src/ft2_sysreqs.h
+++ b/src/ft2_sysreqs.h
@@ -10,12 +10,14 @@
 bool askUnsavedChanges(uint8_t type);
 
 // for thread-safe version of okBox()
-struct
+typedef struct okBoxData_t
 {
 	volatile bool active;
 	int16_t typ, returnData;
 	const char *headline, *text;
-} okBoxData;
+} okBoxData_t;
+
+extern okBoxData_t okBoxData; // ft2_sysreqs.c
 
 enum
 {
--- a/src/ft2_textboxes.c
+++ b/src/ft2_textboxes.c
@@ -13,6 +13,7 @@
 #include "ft2_keyboard.h"
 #include "ft2_mouse.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 textBox_t textBoxes[NUM_TEXTBOXES] =
 {
@@ -699,7 +700,7 @@
 	oldMouseX = mouse.x;
 	oldCursorPos = 0;
 
-	if (editor.ui.sysReqShown)
+	if (ui.sysReqShown)
 	{
 		// if a system request is open, only test the first textbox (reserved)
 		start = 0;
--- a/src/ft2_trim.c
+++ b/src/ft2_trim.c
@@ -15,6 +15,7 @@
 #include "ft2_replayer.h"
 #include "ft2_audio.h"
 #include "ft2_mouse.h"
+#include "ft2_structs.h"
 
 // this is truly a mess, but it works...
 
@@ -999,14 +1000,14 @@
 
 	if (removeChans)
 	{
-		if (editor.ui.patternEditorShown)
+		if (ui.patternEditorShown)
 		{
-			if (editor.ui.channelOffset > song.antChn-editor.ui.numChannelsShown)
-				setScrollBarPos(SB_CHAN_SCROLL, song.antChn - editor.ui.numChannelsShown, true);
+			if (ui.channelOffset > song.antChn-ui.numChannelsShown)
+				setScrollBarPos(SB_CHAN_SCROLL, song.antChn - ui.numChannelsShown, true);
 		}
 
-		if (editor.cursor.ch >= editor.ui.channelOffset+editor.ui.numChannelsShown)
-			editor.cursor.ch = editor.ui.channelOffset+editor.ui.numChannelsShown - 1;
+		if (cursor.ch >= ui.channelOffset+ui.numChannelsShown)
+			cursor.ch = ui.channelOffset+ui.numChannelsShown - 1;
 	}
 
 	checkMarkLimits();
@@ -1137,21 +1138,21 @@
 	hidePushButton(PB_TRIM_CALC);
 	hidePushButton(PB_TRIM_TRIM);
 
-	editor.ui.trimScreenShown = false;
-	editor.ui.scopesShown = true;
+	ui.trimScreenShown = false;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
 void showTrimScreen(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
 	showTopScreen(false);
 
-	editor.ui.trimScreenShown = true;
-	editor.ui.scopesShown = false;
+	ui.trimScreenShown = true;
+	ui.scopesShown = false;
 
 	drawTrimScreen();
 }
@@ -1158,7 +1159,7 @@
 
 void toggleTrimScreen(void)
 {
-	if (editor.ui.trimScreenShown)
+	if (ui.trimScreenShown)
 		hideTrimScreen();
 	else
 		showTrimScreen();
@@ -1220,7 +1221,7 @@
 	if (xmAfterTrimSize64 < 0)
 		xmAfterTrimSize64 = 0;
 
-	if (editor.ui.trimScreenShown)
+	if (ui.trimScreenShown)
 		drawTrimScreen();
 }
 
@@ -1252,6 +1253,6 @@
 	xmAfterTrimSize64 = -1;
 	spaceSaved64 = -1;
 
-	if (editor.ui.trimScreenShown)
+	if (ui.trimScreenShown)
 		drawTrimScreen();
 }
--- a/src/ft2_unicode.h
+++ b/src/ft2_unicode.h
@@ -17,7 +17,7 @@
 #define UNICHAR_STRCMP(a, b) wcscmp(a, b)
 #define UNICHAR_STRNCMP(a, b, c) wcsncmp(a, b, c)
 #define UNICHAR_STRCAT(a, b) wcscat(a, b)
-#define UNICHAR_STRDUP(a) wcsdup(a)
+#define UNICHAR_STRDUP(a) _wcsdup(a)
 #define UNICHAR_FOPEN(a, b) _wfopen(a, L ## b)
 #define UNICHAR_CHDIR(a) _wchdir(a)
 #define UNICHAR_GETCWD(a, b) _wgetcwd(a, b)
--- a/src/ft2_video.c
+++ b/src/ft2_video.c
@@ -33,6 +33,7 @@
 #include "ft2_module_loader.h"
 #include "ft2_midi.h"
 #include "ft2_bmp.h"
+#include "ft2_structs.h"
 
 static const uint8_t textCursorData[12] =
 {
@@ -42,6 +43,8 @@
 	PAL_FORGRND, PAL_FORGRND, PAL_FORGRND
 };
 
+video_t video; // globalized
+
 static bool songIsModified;
 static char wndTitle[128 + PATH_MAX];
 static uint64_t timeNext64, timeNext64Frac;
@@ -282,8 +285,8 @@
 {
 	SDL_DisplayMode dm;
 
-	strcpy(editor.ui.fullscreenButtonText, "Go windowed");
-	if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MISCELLANEOUS)
+	strcpy(ui.fullscreenButtonText, "Go windowed");
+	if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MISCELLANEOUS)
 		showConfigScreen(); // redraw so that we can see the new button text
 
 	if (config.windowFlags & FILTERING)
@@ -307,8 +310,8 @@
 
 void leaveFullScreen(void)
 {
-	strcpy(editor.ui.fullscreenButtonText, "Go fullscreen");
-	if (editor.ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MISCELLANEOUS)
+	strcpy(ui.fullscreenButtonText, "Go fullscreen");
+	if (ui.configScreenShown && editor.currConfigScreen == CONFIG_SCREEN_MISCELLANEOUS)
 		showConfigScreen(); // redraw so that we can see the new button text
 
 	SDL_SetWindowFullscreen(video.window, 0);
@@ -1034,13 +1037,13 @@
 {
 	textBox_t *txt;
 
-	if (!editor.ui.configScreenShown && !editor.ui.helpScreenShown)
+	if (!ui.configScreenShown && !ui.helpScreenShown)
 	{
-		if (editor.ui.aboutScreenShown)
+		if (ui.aboutScreenShown)
 		{
 			aboutFrame();
 		}
-		else if (editor.ui.nibblesShown)
+		else if (ui.nibblesShown)
 		{
 			if (editor.NI_Play)
 				moveNibblePlayers();
@@ -1047,11 +1050,11 @@
 		}
 		else
 		{
-			if (editor.ui.updatePosSections)
+			if (ui.updatePosSections)
 			{
-				editor.ui.updatePosSections = false;
+				ui.updatePosSections = false;
 
-				if (!editor.ui.diskOpShown)
+				if (!ui.diskOpShown)
 				{
 					drawSongRepS();
 					drawSongLength();
@@ -1066,7 +1069,7 @@
 						setScrollBarPos(SB_POS_ED, editor.songPos, false);
 
 					// draw current mode text (not while in extended pattern editor mode)
-					if (!editor.ui.extended)
+					if (!ui.extended)
 					{
 						fillRect(115, 80, 74, 10, PAL_DESKTOP);
 
@@ -1078,21 +1081,21 @@
 				}
 			}
 
-			if (editor.ui.updatePosEdScrollBar)
+			if (ui.updatePosEdScrollBar)
 			{
-				editor.ui.updatePosEdScrollBar = false;
+				ui.updatePosEdScrollBar = false;
 				setScrollBarPos(SB_POS_ED, song.songPos, false);
 				setScrollBarEnd(SB_POS_ED, (song.len - 1) + 5);
 			}
 
-			if (!editor.ui.extended)
+			if (!ui.extended)
 			{
-				if (!editor.ui.diskOpShown)
+				if (!ui.diskOpShown)
 					drawPlaybackTime();
 
-				if (editor.ui.sampleEditorExtShown)
+				if (ui.sampleEditorExtShown)
 					handleSampleEditorExtRedrawing();
-				else if (editor.ui.scopesShown)
+				else if (ui.scopesShown)
 					drawScopes();
 			}
 		}
@@ -1100,9 +1103,9 @@
 
 	drawReplayerData();
 
-	if (editor.ui.instEditorShown)
+	if (ui.instEditorShown)
 		handleInstEditorRedrawing();
-	else if (editor.ui.sampleEditorShown)
+	else if (ui.sampleEditorShown)
 		handleSamplerRedrawing();
 
 	// blink text edit cursor
@@ -1131,17 +1134,17 @@
 
 	if (songPlaying)
 	{
-		if (editor.ui.drawReplayerPianoFlag)
+		if (ui.drawReplayerPianoFlag)
 		{
-			editor.ui.drawReplayerPianoFlag = false;
-			if (editor.ui.instEditorShown && chSyncEntry != NULL)
+			ui.drawReplayerPianoFlag = false;
+			if (ui.instEditorShown && chSyncEntry != NULL)
 				drawPiano(chSyncEntry);
 		}
 
 		drawPosText = true;
-		if (editor.ui.configScreenShown || editor.ui.nibblesShown     ||
-			editor.ui.helpScreenShown   || editor.ui.aboutScreenShown ||
-			editor.ui.diskOpShown)
+		if (ui.configScreenShown || ui.nibblesShown     ||
+			ui.helpScreenShown   || ui.aboutScreenShown ||
+			ui.diskOpShown)
 		{
 			drawPosText = false;
 		}
@@ -1148,49 +1151,49 @@
 
 		if (drawPosText)
 		{
-			if (editor.ui.drawBPMFlag)
+			if (ui.drawBPMFlag)
 			{
-				editor.ui.drawBPMFlag = false;
+				ui.drawBPMFlag = false;
 				drawSongBPM(editor.speed);
 			}
 			
-			if (editor.ui.drawSpeedFlag)
+			if (ui.drawSpeedFlag)
 			{
-				editor.ui.drawSpeedFlag = false;
+				ui.drawSpeedFlag = false;
 				drawSongSpeed(editor.tempo);
 			}
 
-			if (editor.ui.drawGlobVolFlag)
+			if (ui.drawGlobVolFlag)
 			{
-				editor.ui.drawGlobVolFlag = false;
+				ui.drawGlobVolFlag = false;
 				drawGlobalVol(editor.globalVol);
 			}
 
-			if (editor.ui.drawPosEdFlag)
+			if (ui.drawPosEdFlag)
 			{
-				editor.ui.drawPosEdFlag = false;
+				ui.drawPosEdFlag = false;
 				drawPosEdNums(editor.songPos);
 				setScrollBarPos(SB_POS_ED, editor.songPos, false);
 			}
 
-			if (editor.ui.drawPattNumLenFlag)
+			if (ui.drawPattNumLenFlag)
 			{
-				editor.ui.drawPattNumLenFlag = false;
+				ui.drawPattNumLenFlag = false;
 				drawEditPattern(editor.editPattern);
 				drawPatternLength(editor.editPattern);
 			}
 		}
 	}
-	else if (editor.ui.instEditorShown)
+	else if (ui.instEditorShown)
 	{
 		drawPiano(NULL);
 	}
 
 	// handle pattern data updates
-	if (editor.ui.updatePatternEditor)
+	if (ui.updatePatternEditor)
 	{
-		editor.ui.updatePatternEditor = false;
-		if (editor.ui.patternEditorShown)
+		ui.updatePatternEditor = false;
+		if (ui.patternEditorShown)
 			writePattern(editor.pattPos, editor.editPattern);
 	}
 }
--- a/src/ft2_video.h
+++ b/src/ft2_video.h
@@ -16,7 +16,7 @@
 	SPRITE_NUM
 };
 
-struct video_t
+typedef struct video_t
 {
 	bool fullscreen, showFPSCounter;
 	uint32_t xScale, yScale;
@@ -33,7 +33,7 @@
 	SDL_Renderer *renderer;
 	SDL_Texture *texture;
 	SDL_Surface *iconSurface;
-} video;
+} video_t;
 
 typedef struct
 {
@@ -43,6 +43,8 @@
 	int16_t newX, newY, x, y;
 	uint16_t w, h;
 } sprite_t;
+
+extern video_t video; // ft2_video.c
 
 void resetFPSCounter(void);
 void beginFPSCounter(void);
--- a/src/ft2_wav_renderer.c
+++ b/src/ft2_wav_renderer.c
@@ -17,6 +17,7 @@
 #include "ft2_inst_ed.h"
 #include "ft2_audio.h"
 #include "ft2_wav_renderer.h"
+#include "ft2_structs.h"
 
 #define TICKS_PER_RENDER_CHUNK 64
 
@@ -117,20 +118,20 @@
 	WDStartPos = 0;
 	WDStopPos  = (uint8_t)song.len - 1;
 
-	if (editor.ui.wavRendererShown)
+	if (ui.wavRendererShown)
 		updateWavRenderer();
 }
 
 void showWavRenderer(void)
 {
-	if (editor.ui.extended)
+	if (ui.extended)
 		exitPatternEditorExtended();
 
 	hideTopScreen();
 	showTopScreen(false);
 
-	editor.ui.wavRendererShown = true;
-	editor.ui.scopesShown = false;
+	ui.wavRendererShown = true;
+	ui.scopesShown = false;
 
 	WDStartPos = 0;
 	WDStopPos = (uint8_t)song.len - 1;
@@ -140,7 +141,7 @@
 
 void hideWavRenderer(void)
 {
-	editor.ui.wavRendererShown = false;
+	ui.wavRendererShown = false;
 
 	hidePushButton(PB_WAV_RENDER);
 	hidePushButton(PB_WAV_EXIT);
@@ -154,7 +155,7 @@
 	hidePushButton(PB_WAV_END_DOWN);
 	hideRadioButtonGroup(RB_GROUP_WAV_RENDER_BITDEPTH);
 
-	editor.ui.scopesShown = true;
+	ui.scopesShown = true;
 	drawScopeFramework();
 }
 
@@ -288,13 +289,13 @@
 	editor.tempo = song.tempo;
 	editor.globalVol = song.globVol;
 
-	editor.ui.drawPosEdFlag = true;
-	editor.ui.drawPattNumLenFlag = true;
-	editor.ui.drawReplayerPianoFlag = true;
-	editor.ui.drawBPMFlag = true;
-	editor.ui.drawSpeedFlag = true;
-	editor.ui.drawGlobVolFlag = true;
-	editor.ui.updatePatternEditor = true;
+	ui.drawPosEdFlag = true;
+	ui.drawPattNumLenFlag = true;
+	ui.drawReplayerPianoFlag = true;
+	ui.drawBPMFlag = true;
+	ui.drawSpeedFlag = true;
+	ui.drawGlobVolFlag = true;
+	ui.updatePatternEditor = true;
 
 	drawPlaybackTime();
 }
--- a/vs2019_project/ft2-clone/ft2-clone.vcxproj
+++ b/vs2019_project/ft2-clone/ft2-clone.vcxproj
@@ -27,13 +27,13 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <PlatformToolset>v142</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
+    <CharacterSet>Unicode</CharacterSet>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <CharacterSet>MultiByte</CharacterSet>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <UseDebugLibraries>true</UseDebugLibraries>
@@ -94,7 +94,6 @@
       </AdditionalIncludeDirectories>
       <PreprocessorDefinitions>__WINDOWS_MM__;NDEBUG;WIN32;_CRT_SECURE_NO_WARNINGS;_USE_MATH_DEFINES;HAVE_M_PI;HAS_MIDI</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <CompileAsManaged>false</CompileAsManaged>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <StringPooling>true</StringPooling>
       <MinimalRebuild>false</MinimalRebuild>
@@ -101,31 +100,24 @@
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
-      <ExceptionHandling>false</ExceptionHandling>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <FloatingPointModel>Fast</FloatingPointModel>
-      <EnableParallelCodeGeneration>false</EnableParallelCodeGeneration>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
       <OmitFramePointers>true</OmitFramePointers>
       <CompileAsWinRT>false</CompileAsWinRT>
-      <ControlFlowGuard>false</ControlFlowGuard>
-      <CreateHotpatchableImage>false</CreateHotpatchableImage>
-      <RuntimeTypeInfo>false</RuntimeTypeInfo>
-      <OpenMPSupport>false</OpenMPSupport>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <DebugInformationFormat>None</DebugInformationFormat>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
     </ClCompile>
     <Link>
       <AdditionalLibraryDirectories>
       </AdditionalLibraryDirectories>
       <SubSystem>Windows</SubSystem>
-      <AdditionalDependencies>SDL2main.lib;SDL2.lib;winmm.lib;shlwapi.lib;libcmt.lib;libvcruntime.lib;libucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <IgnoreSpecificDefaultLibraries>
-      </IgnoreSpecificDefaultLibraries>
-      <AdditionalOptions>/NODEFAULTLIB:MSVCRT "notelemetry.obj" %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>SDL2main.lib;SDL2.lib;winmm.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
+      <AdditionalOptions>"notelemetry.obj" %(AdditionalOptions)</AdditionalOptions>
       <TreatLinkerWarningAsErrors>true</TreatLinkerWarningAsErrors>
       <MinimumRequiredVersion>5.1</MinimumRequiredVersion>
       <FullProgramDatabaseFile>
@@ -133,10 +125,11 @@
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
       <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <DataExecutionPrevention>false</DataExecutionPrevention>
-      <ImageHasSafeExceptionHandlers>true</ImageHasSafeExceptionHandlers>
       <LargeAddressAware>true</LargeAddressAware>
       <GenerateDebugInformation>false</GenerateDebugInformation>
+      <SetChecksum>true</SetChecksum>
+      <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
+      <FixedBaseAddress>false</FixedBaseAddress>
     </Link>
     <PostBuildEvent />
     <Manifest />
@@ -143,6 +136,9 @@
     <Manifest>
       <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
     </Manifest>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ResourceCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
@@ -152,38 +148,29 @@
       </AdditionalIncludeDirectories>
       <PreprocessorDefinitions>__WINDOWS_MM__;NDEBUG;WIN32;_CRT_SECURE_NO_WARNINGS;_USE_MATH_DEFINES;HAVE_M_PI;HAS_MIDI</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <CompileAsManaged>false</CompileAsManaged>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <StringPooling>true</StringPooling>
       <MinimalRebuild>false</MinimalRebuild>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
-      <ExceptionHandling>false</ExceptionHandling>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <FloatingPointModel>Fast</FloatingPointModel>
-      <EnableParallelCodeGeneration>false</EnableParallelCodeGeneration>
-      <FloatingPointExceptions>false</FloatingPointExceptions>
       <OmitFramePointers>true</OmitFramePointers>
-      <CompileAsWinRT>false</CompileAsWinRT>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
-      <ControlFlowGuard>false</ControlFlowGuard>
-      <CreateHotpatchableImage>false</CreateHotpatchableImage>
-      <RuntimeTypeInfo>false</RuntimeTypeInfo>
-      <OpenMPSupport>false</OpenMPSupport>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <DebugInformationFormat>None</DebugInformationFormat>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+      <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
     </ClCompile>
     <Link>
       <AdditionalLibraryDirectories>
       </AdditionalLibraryDirectories>
       <SubSystem>Windows</SubSystem>
-      <AdditionalDependencies>SDL2main.lib;SDL2.lib;winmm.lib;shlwapi.lib;libcmt.lib;libvcruntime.lib;libucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2main.lib;SDL2.lib;winmm.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreAllDefaultLibraries>
       </IgnoreAllDefaultLibraries>
-      <IgnoreSpecificDefaultLibraries>
-      </IgnoreSpecificDefaultLibraries>
+      <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <AdditionalOptions>/NODEFAULTLIB:MSVCRT "notelemetry.obj" %(AdditionalOptions)</AdditionalOptions>
       <TreatLinkerWarningAsErrors>true</TreatLinkerWarningAsErrors>
       <MinimumRequiredVersion>
@@ -193,11 +180,12 @@
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
       <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <DataExecutionPrevention>false</DataExecutionPrevention>
       <ImageHasSafeExceptionHandlers>
       </ImageHasSafeExceptionHandlers>
       <LargeAddressAware>true</LargeAddressAware>
       <GenerateDebugInformation>false</GenerateDebugInformation>
+      <SetChecksum>true</SetChecksum>
+      <FixedBaseAddress>false</FixedBaseAddress>
     </Link>
     <PostBuildEvent>
       <Message>
@@ -208,7 +196,7 @@
     <Manifest />
     <ResourceCompile />
     <ResourceCompile>
-      <PreprocessorDefinitions>_WIN64</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_WIN64;NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ResourceCompile>
     <Manifest />
     <Manifest>
@@ -359,6 +347,7 @@
     <ClCompile Include="..\..\src\ft2_scopedraw.c" />
     <ClCompile Include="..\..\src\ft2_scopes.c" />
     <ClCompile Include="..\..\src\ft2_scrollbars.c" />
+    <ClCompile Include="..\..\src\ft2_structs.c" />
     <ClCompile Include="..\..\src\ft2_sysreqs.c" />
     <ClCompile Include="..\..\src\ft2_tables.c" />
     <ClCompile Include="..\..\src\ft2_textboxes.c" />
@@ -430,6 +419,7 @@
     <ClInclude Include="..\..\src\ft2_scopedraw.h" />
     <ClInclude Include="..\..\src\ft2_scopes.h" />
     <ClInclude Include="..\..\src\ft2_scrollbars.h" />
+    <ClInclude Include="..\..\src\ft2_structs.h" />
     <ClInclude Include="..\..\src\ft2_sysreqs.h" />
     <ClInclude Include="..\..\src\ft2_tables.h" />
     <ClInclude Include="..\..\src\ft2_textboxes.h" />
--- a/vs2019_project/ft2-clone/ft2-clone.vcxproj.filters
+++ b/vs2019_project/ft2-clone/ft2-clone.vcxproj.filters
@@ -76,6 +76,7 @@
     <ClCompile Include="..\..\src\gfxdata\ft2_bmp_gui.c">
       <Filter>graphics</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\ft2_structs.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\src\ft2_audio.h">
@@ -214,6 +215,9 @@
       <Filter>headers</Filter>
     </ClInclude>
     <ClInclude Include="..\..\src\ft2_bmp.h">
+      <Filter>headers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\ft2_structs.h">
       <Filter>headers</Filter>
     </ClInclude>
   </ItemGroup>