GUI: add render preInit settings

src/gui/gui.cpp

@@ -6982,7 +6982,7 @@ bool FurnaceGUI::init() {
     return false;
   }
 
-  rend->preInit();
+  rend->preInit(e->getConfObject());
 
   logD("creating window...");
   sdlWin=SDL_CreateWindow("Furnace",scrX,scrY,scrW,scrH,SDL_WINDOW_RESIZABLE|SDL_WINDOW_ALLOW_HIGHDPI|(scrMax?SDL_WINDOW_MAXIMIZED:0)|(fullScreen?SDL_WINDOW_FULLSCREEN_DESKTOP:0)|rend->getWindowFlags());

src/gui/gui.h

@@ -1509,7 +1509,7 @@ class FurnaceGUIRender {
     virtual const char* getDeviceName();
     virtual const char* getAPIVersion();
     virtual void setSwapInterval(int swapInterval);
-    virtual void preInit();
+    virtual void preInit(const DivConfig& conf);
     virtual bool init(SDL_Window* win, int swapInterval);
     virtual void initGUI(SDL_Window* win);
     virtual void quitGUI();
@@ -1896,6 +1896,12 @@ class FurnaceGUI {
     int frameRateLimit;
     int displayRenderTime;
     int inputRepeat;
+    int glRedSize;
+    int glGreenSize;
+    int glBlueSize;
+    int glAlphaSize;
+    int glDepthSize;
+    int glDoubleBuffer;
     unsigned int maxUndoSteps;
     float vibrationStrength;
     int vibrationLength;
@@ -2139,6 +2145,12 @@ class FurnaceGUI {
       frameRateLimit(60),
       displayRenderTime(0),
       inputRepeat(0),
+      glRedSize(8),
+      glGreenSize(8),
+      glBlueSize(8),
+      glAlphaSize(0),
+      glDepthSize(24),
+      glDoubleBuffer(1),
       maxUndoSteps(100),
       vibrationStrength(0.5f),
       vibrationLength(20),

src/gui/render/abstract.cpp

@@ -128,7 +128,7 @@ const char* FurnaceGUIRender::getAPIVersion() {
 void FurnaceGUIRender::setSwapInterval(int swapInterval) {
 }
 
-void FurnaceGUIRender::preInit() {
+void FurnaceGUIRender::preInit(const DivConfig& conf) {
 }
 
 bool FurnaceGUIRender::init(SDL_Window* win, int swapInterval) {

src/gui/render/renderDX11.cpp

@@ -397,7 +397,7 @@ void FurnaceGUIRenderDX11::setSwapInterval(int swapInt) {
   swapInterval=swapInt;
 }
 
-void FurnaceGUIRenderDX11::preInit() {
+void FurnaceGUIRenderDX11::preInit(const DivConfig& conf) {
 }
 
 const float wipeVertices[4][4]={

src/gui/render/renderDX11.h

@@ -89,7 +89,7 @@ class FurnaceGUIRenderDX11: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/render/renderGL.cpp

@@ -580,7 +580,7 @@ void FurnaceGUIRenderGL::setSwapInterval(int swapInterval) {
   }
 }
 
-void FurnaceGUIRenderGL::preInit() {
+void FurnaceGUIRenderGL::preInit(const DivConfig& conf) {
 #if defined(USE_GLES)
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS,0);
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,SDL_GL_CONTEXT_PROFILE_ES);
@@ -603,12 +603,12 @@ void FurnaceGUIRenderGL::preInit() {
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION,0);
 #endif
 
-  SDL_GL_SetAttribute(SDL_GL_RED_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_RED_SIZE,conf.getInt("glRedSize",8));
-  SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE,conf.getInt("glGreenSize",8));
-  SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE,conf.getInt("glBlueSize",8));
-  SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,0);
+  SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,conf.getInt("glAlphaSize",0));
-  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
+  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,conf.getInt("glDoubleBuffer",1));
-  SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,24);
+  SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,conf.getInt("glDepthSize",24));
 }
 
 #define LOAD_PROC_MANDATORY(_v,_t,_s) \

src/gui/render/renderGL.h

@@ -82,7 +82,7 @@ class FurnaceGUIRenderGL: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/render/renderGL1.cpp

@@ -245,18 +245,18 @@ void FurnaceGUIRenderGL1::setSwapInterval(int swapInterval) {
   }
 }
 
-void FurnaceGUIRenderGL1::preInit() {
+void FurnaceGUIRenderGL1::preInit(const DivConfig& conf) {
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS,0);
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,0);
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION,1);
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION,1);
 
-  SDL_GL_SetAttribute(SDL_GL_RED_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_RED_SIZE,conf.getInt("glRedSize",8));
-  SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE,conf.getInt("glGreenSize",8));
-  SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE,8);
+  SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE,conf.getInt("glBlueSize",8));
-  SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,0);
+  SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE,conf.getInt("glAlphaSize",0));
-  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
+  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,conf.getInt("glDoubleBuffer",1));
-  SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,24);
+  SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,conf.getInt("glDepthSize",24));
 }
 
 #define LOAD_PROC_MANDATORY(_v,_t,_s) \

src/gui/render/renderGL1.h

@@ -56,7 +56,7 @@ class FurnaceGUIRenderGL1: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/render/renderMetal.h

@@ -52,7 +52,7 @@ class FurnaceGUIRenderMetal: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/render/renderMetal.mm

@@ -218,7 +218,7 @@ void FurnaceGUIRenderMetal::setSwapInterval(int swapInterval) {
   }
 }
 
-void FurnaceGUIRenderMetal::preInit() {
+void FurnaceGUIRenderMetal::preInit(const DivConfig& conf) {
   SDL_SetHint(SDL_HINT_RENDER_DRIVER,"metal");
   priv=new FurnaceGUIRenderMetalPrivate;
 }

src/gui/render/renderSDL.cpp

@@ -182,7 +182,7 @@ void FurnaceGUIRenderSDL::setSwapInterval(int swapInterval) {
   }
 }
 
-void FurnaceGUIRenderSDL::preInit() {
+void FurnaceGUIRenderSDL::preInit(const DivConfig& conf) {
 }
 
 bool FurnaceGUIRenderSDL::init(SDL_Window* win, int swapInterval) {

src/gui/render/renderSDL.h

@@ -50,7 +50,7 @@ class FurnaceGUIRenderSDL: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/render/renderSoftware.cpp

@@ -160,7 +160,7 @@ const char* FurnaceGUIRenderSoftware::getAPIVersion() {
 void FurnaceGUIRenderSoftware::setSwapInterval(int swapInterval) {
 }
 
-void FurnaceGUIRenderSoftware::preInit() {
+void FurnaceGUIRenderSoftware::preInit(const DivConfig& conf) {
 }
 
 bool FurnaceGUIRenderSoftware::init(SDL_Window* win, int swapInterval) {

src/gui/render/renderSoftware.h

@@ -47,7 +47,7 @@ class FurnaceGUIRenderSoftware: public FurnaceGUIRender {
     const char* getDeviceName();
     const char* getAPIVersion();
     void setSwapInterval(int swapInterval);
-    void preInit();
+    void preInit(const DivConfig& conf);
     bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();

src/gui/settings.cpp

@@ -449,6 +449,8 @@ void FurnaceGUI::drawSettings() {
         if (ImGui::IsItemHovered()) {
           ImGui::SetTooltip("you may need to restart Furnace for this setting to take effect.");
         }
+
+        if (ImGui::TreeNode("Advanced render backend settings")) {
           if (curRenderBackend=="SDL") {
             if (ImGui::BeginCombo("Render driver",settings.renderDriver.empty()?"Automatic":settings.renderDriver.c_str())) {
               if (ImGui::Selectable("Automatic",settings.renderDriver.empty())) {
@@ -466,6 +468,42 @@ void FurnaceGUI::drawSettings() {
             if (ImGui::IsItemHovered()) {
               ImGui::SetTooltip("you may need to restart Furnace for this setting to take effect.");
             }
+          } else if (curRenderBackend.find("OpenGL")==0) {
+            ImGui::TextWrapped("beware: changing these settings may render Furnace unusable! do so at your own risk.\nstart Furnace with -safemode if you mess something up.");
+            if (ImGui::InputInt("Red bits",&settings.glRedSize)) {
+              if (settings.glRedSize<0) settings.glRedSize=0;
+              if (settings.glRedSize>32) settings.glRedSize=32;
+              settingsChanged=true;
+            }
+            if (ImGui::InputInt("Green bits",&settings.glGreenSize)) {
+              if (settings.glGreenSize<0) settings.glGreenSize=0;
+              if (settings.glGreenSize>32) settings.glGreenSize=32;
+              settingsChanged=true;
+            }
+            if (ImGui::InputInt("Blue bits",&settings.glBlueSize)) {
+              if (settings.glBlueSize<0) settings.glBlueSize=0;
+              if (settings.glBlueSize>32) settings.glBlueSize=32;
+              settingsChanged=true;
+            }
+            if (ImGui::InputInt("Alpha bits",&settings.glAlphaSize)) {
+              if (settings.glAlphaSize<0) settings.glAlphaSize=0;
+              if (settings.glAlphaSize>32) settings.glAlphaSize=32;
+              settingsChanged=true;
+            }
+            if (ImGui::InputInt("Color depth",&settings.glDepthSize)) {
+              if (settings.glDepthSize<0) settings.glDepthSize=0;
+              if (settings.glDepthSize>128) settings.glDepthSize=128;
+              settingsChanged=true;
+            }
+            bool glDoubleBufferB=settings.glDoubleBuffer;
+            if (ImGui::Checkbox("Double buffer",&glDoubleBufferB)) {
+              settings.glDoubleBuffer=glDoubleBufferB;
+              settingsChanged=true;
+            }
+
+            ImGui::TextWrapped("the following values are common (in red, green, blue, alpha order):\n- 24 bits: 8, 8, 8, 0\n- 16 bits: 5, 6, 5, 0\n- 32 bits (with alpha): 8, 8, 8, 8\n- 30 bits (deep): 10, 10, 10, 0");
+            
+          }
         }
 
         ImGui::TextWrapped("current backend: %s\n%s\n%s\n%s",rend->getBackendName(),rend->getVendorName(),rend->getDeviceName(),rend->getAPIVersion());
@@ -4123,6 +4161,13 @@ void FurnaceGUI::readConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
     settings.renderBackend=conf.getString("renderBackend",GUI_BACKEND_DEFAULT_NAME);
     settings.renderClearPos=conf.getInt("renderClearPos",0);
 
+    settings.glRedSize=conf.getInt("glRedSize",8);
+    settings.glGreenSize=conf.getInt("glGreenSize",8);
+    settings.glBlueSize=conf.getInt("glBlueSize",8);
+    settings.glAlphaSize=conf.getInt("glAlphaSize",0);
+    settings.glDepthSize=conf.getInt("glDepthSize",24);
+    settings.glDoubleBuffer=conf.getInt("glDoubleBuffer",1);
+
     settings.vsync=conf.getInt("vsync",1);
     settings.frameRateLimit=conf.getInt("frameRateLimit",100);
     settings.displayRenderTime=conf.getInt("displayRenderTime",0);
@@ -4657,6 +4702,12 @@ void FurnaceGUI::readConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
   clampSetting(settings.vibrationStrength,0.0f,1.0f);
   clampSetting(settings.vibrationLength,10,500);
   clampSetting(settings.inputRepeat,0,1);
+  clampSetting(settings.glRedSize,0,32);
+  clampSetting(settings.glGreenSize,0,32);
+  clampSetting(settings.glBlueSize,0,32);
+  clampSetting(settings.glAlphaSize,0,32);
+  clampSetting(settings.glDepthSize,0,128);
+  clampSetting(settings.glDoubleBuffer,0,1);
 
   if (settings.exportLoops<0.0) settings.exportLoops=0.0;
   if (settings.exportFadeOut<0.0) settings.exportFadeOut=0.0;  
@@ -4680,6 +4731,13 @@ void FurnaceGUI::writeConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
     conf.set("renderBackend",settings.renderBackend);
     conf.set("renderClearPos",settings.renderClearPos);
 
+    conf.set("glRedSize",settings.glRedSize);
+    conf.set("glGreenSize",settings.glGreenSize);
+    conf.set("glBlueSize",settings.glBlueSize);
+    conf.set("glAlphaSize",settings.glAlphaSize);
+    conf.set("glDepthSize",settings.glDepthSize);
+    conf.set("glDoubleBuffer",settings.glDoubleBuffer);
+
     conf.set("vsync",settings.vsync);
     conf.set("frameRateLimit",settings.frameRateLimit);
     conf.set("displayRenderTime",settings.displayRenderTime);