update changelog

## Link to GitHub Issue, if one exists
n/a

## Description of change
Allow importing patches for `boot.dll`

## Testing
Observed patch for the new DLL being attempted to be imported in the
logs.

src/spice2x/changelog.txt

@@ -1,3 +1,8 @@
+09/22/2025 [spice2x]
+    Add Polaris Chord lights
+    Add boot.dll to Gitadora patches target
+    Misc fixes
+
 09/20/2025 [spice2x]
     Polaris Chord support for knobs/turntables/mouse as fader input
     Misc fixes

src/spice2x/games/pc/bi2x_hook.cpp

@@ -415,6 +415,19 @@ namespace games::pc {
         }
     }
 
+    struct PolarisChordLight {
+        int data_index;
+        games::pc::Lights::pc_lights_t light;
+        PolarisChordLight(
+            int data_index, games::pc::Lights::pc_lights_t light) :
+                data_index(data_index), light(light) {}
+    };
+
+    static void set_led_value(games::pc::Lights::pc_lights_t light, uint8_t value) {
+        auto &lights = games::pc::get_lights();
+        GameAPI::Lights::writeLight(RI_MGR, lights.at(light), value / 255.f);
+    }
+
     void __fastcall aioIob2Bi2xAC1_SetTapeLedDataPart(AIO_IOB2_BI2X_AC1 *i_pNodeCtl, uint32_t i_TapeLedCh,
                                                       uint32_t i_Offset, uint8_t *i_pData,
                                                       uint32_t i_cntTapeLed, bool i_bReverse) {
@@ -422,8 +435,82 @@ namespace games::pc {
             return aioIob2Bi2xAC1_SetTapeLedDataPart_orig(i_pNodeCtl, i_TapeLedCh, i_Offset, i_pData, i_cntTapeLed, i_bReverse);
         }
 
-        // TODO implement tape led
-        //  there are >200 lights in total, adding each one separately probably isn't the best idea...
+        // log_info(
+        //     "pc",
+        //     "lamp [{}] [{}] = {},{},{}, cnt={}",
+        //     i_TapeLedCh,
+        //     i_Offset,
+        //     i_pData[0], i_pData[1], i_pData[2],
+        //     i_cntTapeLed);
+
+        // [channel 0]
+        // these are button lamps; there are 12 buttons (columns) with this layout:
+        //
+        // 0  5   8  11  14  16  |  18  20  22  25  28  31
+        // 1  6   9  12  15  17  |  19  21  23  26  29  32
+        // 2  7  10  13          |          24  27  30  33
+        // 3                     |                      34
+        // 4                     |                      35 
+        //
+        // 36 RGB lamps * 3 = 108 LEDs
+        // each value ranges from [0, 255]
+        // (we only care about the top row)
+
+        static PolarisChordLight button_lights_mapping[] = {
+            {(0 * 3) + 0, games::pc::Lights::pc_lights_t::Button1_R},
+            {(0 * 3) + 1, games::pc::Lights::pc_lights_t::Button1_G},
+            {(0 * 3) + 2, games::pc::Lights::pc_lights_t::Button1_B},
+
+            {(5 * 3) + 0, games::pc::Lights::pc_lights_t::Button2_R},
+            {(5 * 3) + 1, games::pc::Lights::pc_lights_t::Button2_G},
+            {(5 * 3) + 2, games::pc::Lights::pc_lights_t::Button2_B},
+
+            {(8 * 3) + 0, games::pc::Lights::pc_lights_t::Button3_R},
+            {(8 * 3) + 1, games::pc::Lights::pc_lights_t::Button3_G},
+            {(8 * 3) + 2, games::pc::Lights::pc_lights_t::Button3_B},
+
+            {(11 * 3) + 0, games::pc::Lights::pc_lights_t::Button4_R},
+            {(11 * 3) + 1, games::pc::Lights::pc_lights_t::Button4_G},
+            {(11 * 3) + 2, games::pc::Lights::pc_lights_t::Button4_B},
+
+            {(14 * 3) + 0, games::pc::Lights::pc_lights_t::Button5_R},
+            {(14 * 3) + 1, games::pc::Lights::pc_lights_t::Button5_G},
+            {(14 * 3) + 2, games::pc::Lights::pc_lights_t::Button5_B},
+
+            {(16 * 3) + 0, games::pc::Lights::pc_lights_t::Button6_R},
+            {(16 * 3) + 1, games::pc::Lights::pc_lights_t::Button6_G},
+            {(16 * 3) + 2, games::pc::Lights::pc_lights_t::Button6_B},
+
+            {(18 * 3) + 0, games::pc::Lights::pc_lights_t::Button7_R},
+            {(18 * 3) + 1, games::pc::Lights::pc_lights_t::Button7_G},
+            {(18 * 3) + 2, games::pc::Lights::pc_lights_t::Button7_B},
+
+            {(20 * 3) + 0, games::pc::Lights::pc_lights_t::Button8_R},
+            {(20 * 3) + 1, games::pc::Lights::pc_lights_t::Button8_G},
+            {(20 * 3) + 2, games::pc::Lights::pc_lights_t::Button8_B},
+
+            {(22 * 3) + 0, games::pc::Lights::pc_lights_t::Button9_R},
+            {(22 * 3) + 1, games::pc::Lights::pc_lights_t::Button9_G},
+            {(22 * 3) + 2, games::pc::Lights::pc_lights_t::Button9_B},
+
+            {(25 * 3) + 0, games::pc::Lights::pc_lights_t::Button10_R},
+            {(25 * 3) + 1, games::pc::Lights::pc_lights_t::Button10_G},
+            {(25 * 3) + 2, games::pc::Lights::pc_lights_t::Button10_B},
+
+            {(28 * 3) + 0, games::pc::Lights::pc_lights_t::Button11_R},
+            {(28 * 3) + 1, games::pc::Lights::pc_lights_t::Button11_G},
+            {(28 * 3) + 2, games::pc::Lights::pc_lights_t::Button11_B},
+
+            {(31 * 3) + 0, games::pc::Lights::pc_lights_t::Button12_R},
+            {(31 * 3) + 1, games::pc::Lights::pc_lights_t::Button12_G},
+            {(31 * 3) + 2, games::pc::Lights::pc_lights_t::Button12_B},
+        };
+
+        if (i_TapeLedCh == 0 && i_Offset == 0 && i_cntTapeLed == 108) {
+            for (const auto &map : button_lights_mapping) {
+                set_led_value(map.light, i_pData[map.data_index]);
+            }
+        }
     }
 
     void __fastcall aioIob2Bi2x_SetTapeLedDataGroup(AIO_IOB2_BI2X_AC1* i_pNodeCtl, uint32_t i_bfGroup) {

src/spice2x/games/pc/io.cpp

@@ -71,7 +71,55 @@ std::vector<Light> &games::pc::get_lights() {
                 &lights,
                 "IC Reader R",
                 "IC Reader G",
-                "IC Reader B"
+                "IC Reader B",
+
+                "Button 1 R",
+                "Button 1 G",
+                "Button 1 B",
+
+                "Button 2 R",
+                "Button 2 G",
+                "Button 2 B",
+
+                "Button 3 R",
+                "Button 3 G",
+                "Button 3 B",
+
+                "Button 4 R",
+                "Button 4 G",
+                "Button 4 B",
+
+                "Button 5 R",
+                "Button 5 G",
+                "Button 5 B",
+
+                "Button 6 R",
+                "Button 6 G",
+                "Button 6 B",
+
+                "Button 7 R",
+                "Button 7 G",
+                "Button 7 B",
+
+                "Button 8 R",
+                "Button 8 G",
+                "Button 8 B",
+
+                "Button 9 R",
+                "Button 9 G",
+                "Button 9 B",
+
+                "Button 10 R",
+                "Button 10 G",
+                "Button 10 B",
+
+                "Button 11 R",
+                "Button 11 G",
+                "Button 11 B",
+
+                "Button 12 R",
+                "Button 12 G",
+                "Button 12 B"
         );
     }
 

src/spice2x/games/pc/io.h

@@ -41,6 +41,55 @@ namespace games::pc {
             IC_READER_R,
             IC_READER_G,
             IC_READER_B,
+
+            Button1_R,
+            Button1_G,
+            Button1_B,
+
+            Button2_R,
+            Button2_G,
+            Button2_B,
+
+            Button3_R,
+            Button3_G,
+            Button3_B,
+
+            Button4_R,
+            Button4_G,
+            Button4_B,
+
+            Button5_R,
+            Button5_G,
+            Button5_B,
+
+            Button6_R,
+            Button6_G,
+            Button6_B,
+           
+            Button7_R,
+            Button7_G,
+            Button7_B,
+
+            Button8_R,
+            Button8_G,
+            Button8_B,
+
+            Button9_R,
+            Button9_G,
+            Button9_B,
+
+            Button10_R,
+            Button10_G,
+            Button10_B,
+
+            Button11_R,
+            Button11_G,
+            Button11_B,
+
+            Button12_R,
+            Button12_G,
+            Button12_B
+            
         } pc_lights_t;
     }
 

src/spice2x/overlay/windows/generic_sub.cpp

@@ -4,6 +4,7 @@
 
 #include <fmt/format.h>
 
+#include "avs/game.h"
 #include "games/io.h"
 #include "cfg/screen_resize.h"
 #include "hooks/graphics/backends/d3d9/d3d9_backend.h"
@@ -88,13 +89,32 @@ namespace overlay::windows {
     void GenericSubScreen::touch_transform(const ImVec2 xy_in, LONG *x_out, LONG *y_out) {}
 
     void GenericSubScreen::build_content() {
+        this->flags |= ImGuiWindowFlags_NoBackground;
+        
         if (this->disabled_message.has_value()) {
             this->flags &= ~ImGuiWindowFlags_NoBackground;
             ImGui::TextColored(YELLOW, "%s", this->disabled_message.value().c_str());
             return;
         }
+
         this->draw_texture();
 
+        if (!this->texture) {
+            this->flags &= ~ImGuiWindowFlags_NoBackground;
+            ImGui::TextColored(YELLOW, "Failed to acquire surface texture for subscreen.");
+            if (avs::game::is_model("LDJ")) {
+                ImGui::TextColored(
+                    YELLOW,
+                    "Ensure that you are using the correct DLL type, \n"
+                    "or patch the DLL to properly enable TDJ mode.");
+            } else if (avs::game::is_model("KFC")) {
+                ImGui::TextColored(
+                    YELLOW,
+                    "Ensure that you did not accidentally enable a patch \n"
+                    "that turns off subscreen rendering.");
+            }
+        }
+
 #if OVERLAYDBG
         if (this->status_message.has_value()) {
             log_warning("sub::overlay", "{}", this->status_message.value().c_str());

src/spice2x/overlay/windows/iidx_sub.cpp

@@ -14,7 +14,7 @@ namespace overlay::windows {
         if (GRAPHICS_IIDX_WSUB) {
             this->disabled_message =
                 "Close this overlay and use the second window.\n"
-                "Or, turn on -iidxnosub to use the overlay instead.";
+                "If you don't see the window, double check your DLL type and apply TDJ I/O patches as needed.";
             this->draws_window = false;
         }
 

src/spice2x/overlay/windows/patch_manager.cpp

@@ -80,7 +80,7 @@ namespace overlay::windows {
         {"arkmmd.dll", {"gamemmd.dll"}},
         {"arkklp.dll", {"lpac.dll"}},
         {"arknck.dll", {"weac.dll"}},
-        {"gdxg.dll", {"game.dll", "libshare-pj.dll"}}
+        {"gdxg.dll", {"game.dll", "libshare-pj.dll", "boot.dll"}}
     };
 
     static size_t url_recent_idx = -1;