From e475b29ec351ad532b436f4600a24bbf7ae8a681 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Tue, 13 Aug 2024 04:40:26 -0500
Subject: [PATCH] a menu

---
 src/engine/engine.cpp     |  3 +++
 src/engine/engine.h       |  2 ++
 src/gui/exportOptions.cpp | 22 +++++++++++++++++++++-
 src/gui/gui.cpp           |  3 ++-
 src/gui/gui.h             |  3 +++
 5 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index 1a382b85e..bfde6906b 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -3916,6 +3916,9 @@ bool DivEngine::preInit(bool noSafeMode) {
   // register systems
   if (!systemsRegistered) registerSystems();
 
+  // register ROM exports
+  if (!romExportsRegistered) registerROMExports();
+
   // TODO: re-enable with a better approach
   // see issue #1581
   /*
diff --git a/src/engine/engine.h b/src/engine/engine.h
index 9ecf819ee..e30334fd4 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -465,6 +465,7 @@ class DivEngine {
   bool midiIsDirectProgram;
   bool lowLatency;
   bool systemsRegistered;
+  bool romExportsRegistered;
   bool hasLoadedSomething;
   bool midiOutClock;
   bool midiOutTime;
@@ -1365,6 +1366,7 @@ class DivEngine {
       midiIsDirectProgram(false),
       lowLatency(false),
       systemsRegistered(false),
+      romExportsRegistered(false),
       hasLoadedSomething(false),
       midiOutClock(false),
       midiOutTime(false),
diff --git a/src/gui/exportOptions.cpp b/src/gui/exportOptions.cpp
index 582ba3055..c943779eb 100644
--- a/src/gui/exportOptions.cpp
+++ b/src/gui/exportOptions.cpp
@@ -241,7 +241,27 @@ void FurnaceGUI::drawExportVGM(bool onWindow) {
 
 void FurnaceGUI::drawExportROM(bool onWindow) {
   exitDisabledTimer=1;
-  
+
+  const DivROMExportDef* def=e->getROMExportDef(romTarget);
+
+  ImGui::Text("select target:");
+  if (ImGui::BeginCombo("##ROMTarget",def==NULL?"<select one>":def->name)) {
+    for (int i=0; i<DIV_ROM_MAX; i++) {
+      const DivROMExportDef* newDef=e->getROMExportDef((DivROMExportOptions)i);
+      if (newDef!=NULL) {
+        if (ImGui::Selectable(newDef->name)) {
+          romTarget=(DivROMExportOptions)i;
+        }
+      }
+    }
+    ImGui::EndCombo();
+  }
+
+  if (def!=NULL) {
+    ImGui::Text("by %s",def->author);
+
+    ImGui::TextWrapped("%s",def->description);
+  }
 
   if (onWindow) {
     ImGui::Separator();
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 1d262ce16..e17d5c345 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -8349,7 +8349,8 @@ FurnaceGUI::FurnaceGUI():
   curTutorial(-1),
   curTutorialStep(0),
   dmfExportVersion(0),
-  curExportType(GUI_EXPORT_NONE) {
+  curExportType(GUI_EXPORT_NONE),
+  romTarget(DIV_ROM_ABSTRACT) {
   // value keys
   valueKeys[SDLK_0]=0;
   valueKeys[SDLK_1]=1;
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 50020e0db..1481089ff 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2680,6 +2680,9 @@ class FurnaceGUI {
   int dmfExportVersion;
   FurnaceGUIExportTypes curExportType;
 
+  // ROM export specific
+  DivROMExportOptions romTarget;
+
   // user presets window
   std::vector<int> selectedUserPreset;