GUI: earliest ever GUI

CMakeLists.txt

@@ -20,12 +20,12 @@ if (WIN32)
   add_subdirectory(extern/zlib)
   set(HAVE_SDL2 SDL2-static)
   set(HAVE_Z zlibstatic)
-  include_directories(extern/imgui extern/zlib ${CMAKE_CURRENT_BINARY_DIR}/extern/zlib)
+  include_directories(extern/imgui extern/imgui/backends extern/zlib ${CMAKE_CURRENT_BINARY_DIR}/extern/zlib)
 else()
   if (BUILD_GUI)
     set(SDL_SHARED ON)
     add_subdirectory(extern/SDL)
-    include_directories(extern/SDL/include extern/imgui)
+    include_directories(extern/SDL/include extern/imgui extern/imgui/backends)
     set(HAVE_SDL2 SDL2)
   else()
     find_library(HAVE_SDL2 SDL2)
@@ -108,10 +108,13 @@ extern/imgui/backends/imgui_impl_sdlrenderer.cpp
 extern/imgui/backends/imgui_impl_sdl.cpp
 extern/igfd/ImGuiFileDialog.cpp
 
+src/gui/font_main.cpp
+src/gui/font_pat.cpp
 src/gui/gui.cpp)
 
 if (BUILD_GUI)
   add_executable(furnace ${ENGINE_SOURCES} ${AUDIO_SOURCES} ${GUI_SOURCES} src/main.cpp)
+  target_compile_definitions(furnace PUBLIC HAVE_GUI)
 else()
   add_executable(furnace ${ENGINE_SOURCES} ${AUDIO_SOURCES} src/main.cpp)
 endif()

src/gui/fonts.h

@@ -0,0 +1,7 @@
+#ifndef _FONTS_H
+#define _FONTS_H
+extern const unsigned int defFont_main_compressed_size;
+extern const unsigned int defFont_main_compressed_data[];
+extern const unsigned int defFont_pat_compressed_size;
+extern const unsigned int defFont_pat_compressed_data[];
+#endif

src/gui/gui.cpp

@@ -1,9 +1,82 @@
 #include "gui.h"
+#include "fonts.h"
+#include "../ta-log.h"
+#include "imgui.h"
 
 void FurnaceGUI::bindEngine(DivEngine* eng) {
   e=eng;
 }
 
-FurnaceGUI::FurnaceGUI():
-  e(NULL) {
+bool FurnaceGUI::loop() {
+  while (!quit) {
+    SDL_Event ev;
+    while (SDL_PollEvent(&ev)) {
+      ImGui_ImplSDL2_ProcessEvent(&ev);
+      switch (ev.type) {
+        case SDL_QUIT:
+          quit=true;
+          return true;
+          break;
+      }
+    }
+    
+    ImGui_ImplSDLRenderer_NewFrame();
+    ImGui_ImplSDL2_NewFrame(sdlWin);
+    ImGui::NewFrame();
+
+    if (ImGui::Begin("Debug")) {
+      ImGui::Text("Hello world!\n");
+      ImGui::InputScalar("Speed 1",ImGuiDataType_U8,&e->song.speed1);
+      ImGui::InputScalar("Speed 2",ImGuiDataType_U8,&e->song.speed2);
+    }
+    ImGui::End();
+
+    SDL_RenderClear(sdlRend);
+    ImGui::Render();
+    ImGui_ImplSDLRenderer_RenderDrawData(ImGui::GetDrawData());
+    SDL_RenderPresent(sdlRend);
+  }
+  return false;
+}
+
+bool FurnaceGUI::init() {
+  sdlWin=SDL_CreateWindow("Furnace",SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED,scrW*dpiScale,scrH*dpiScale,SDL_WINDOW_RESIZABLE|SDL_WINDOW_ALLOW_HIGHDPI);
+  if (sdlWin==NULL) {
+    logE("could not open window!\n");
+    return false;
+  }
+
+  sdlRend=SDL_CreateRenderer(sdlWin,-1,SDL_RENDERER_ACCELERATED|SDL_RENDERER_PRESENTVSYNC|SDL_RENDERER_TARGETTEXTURE);
+
+  if (sdlRend==NULL) {
+    logE("could not init renderer! %s\n",SDL_GetError());
+    return false;
+  }
+
+  IMGUI_CHECKVERSION();
+  ImGui::CreateContext();
+
+  ImGui::StyleColorsDark();
+  ImGui_ImplSDL2_InitForSDLRenderer(sdlWin);
+  ImGui_ImplSDLRenderer_Init(sdlRend);
+
+  ImGui::GetStyle().ScaleAllSizes(dpiScale);
+
+  if ((mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(defFont_main_compressed_data,defFont_main_compressed_size,18*dpiScale))==NULL) {
+    logE("could not load UI font!\n");
+    return false;
+  }
+  if ((patFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(defFont_pat_compressed_data,defFont_pat_compressed_size,18*dpiScale))==NULL) {
+    logE("could not load pattern font!\n");
+    return false;
+  }
+  return true;
+}
+
+FurnaceGUI::FurnaceGUI():
+  e(NULL),
+  quit(false),
+  scrW(1280),
+  scrH(800),
+  dpiScale(2) {
 }

src/gui/gui.h

@@ -1,9 +1,27 @@
 #include "../engine/engine.h"
+#include "imgui.h"
+#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdlrenderer.h"
+#include <SDL.h>
 
 class FurnaceGUI {
   DivEngine* e;
 
+  SDL_Window* sdlWin;
+  SDL_Renderer* sdlRend;
+
+  bool quit;
+
+  int scrW, scrH;
+
+  double dpiScale;
+
+  ImFont* mainFont;
+  ImFont* patFont;
+
   public:
     void bindEngine(DivEngine* eng);
+    bool loop();
+    bool init();
     FurnaceGUI();
 };

src/main.cpp

@@ -11,12 +11,26 @@
 #include <unistd.h>
 #endif
 
+#ifdef HAVE_GUI
+#include "gui/gui.h"
+#endif
+
 #define DIV_VERSION "dev10"
 
 DivEngine e;
 
+#ifdef HAVE_GUI
+FurnaceGUI g;
+#endif
+
 String outName;
 
+#ifdef HAVE_GUI
+bool consoleMode=false;
+#else
+bool consoleMode=true;
+#endif
+
 std::vector<TAParam> params;
 
 bool pHelp(String) {
@@ -58,6 +72,11 @@ bool pView(String val) {
   return true;
 }
 
+bool pConsole(String val) {
+  consoleMode=true;
+  return true;
+}
+
 bool pLogLevel(String val) {
   if (val=="debug") {
     logLevel=LOGLEVEL_DEBUG;
@@ -87,8 +106,10 @@ bool pVersion(String) {
   printf("- libsndfile by Erik de Castro Lopo and rest of libsndfile team (LGPLv2.1)\n");
   printf("- SDL2 by Sam Lantinga (zlib license)\n");
   printf("- zlib by Jean-loup Gailly and Mark Adler (zlib license)\n");
+  printf("- Dear ImGui by Omar Cornut (MIT)\n");
   printf("- Nuked-OPM by Nuke.YKT (LGPLv2.1)\n");
   printf("- Nuked-OPN2 by Nuke.YKT (LGPLv2.1)\n");
+  printf("- ymfm by Aaron Giles (BSD 3-clause)\n");
   printf("- MAME SN76496 emulation core by Nicola Salmoria (BSD 3-clause)\n");
   printf("- SameBoy by Lior Halphon (MIT)\n");
   printf("- Mednafen PCE by Mednafen Team (GPLv2)\n");
@@ -150,6 +171,7 @@ void initParams() {
   params.push_back(TAParam("o","output",true,pOutput,"<filename>","output audio to file"));
   params.push_back(TAParam("L","loglevel",true,pLogLevel,"debug|info|warning|error","set the log level (info by default)"));
   params.push_back(TAParam("v","view",true,pView,"pattern|commands|nothing","set visualization (pattern by default)"));
+  params.push_back(TAParam("c","console",false,pConsole,"","enable console mode"));
 
   params.push_back(TAParam("l","loops",true,pLoops,"<count>","set number of loops (-1 means loop forever)"));
 
@@ -272,6 +294,8 @@ int main(int argc, char** argv) {
     return 1;
   }
   if (outName!="") return 0;
+
+  if (consoleMode) {
     logI("playing...\n");
     e.play();
     while (true) {
@@ -283,3 +307,11 @@ int main(int argc, char** argv) {
     }
     return 0;
   }
+
+  g.bindEngine(&e);
+  g.init();
+
+  g.loop();
+  
+  return 0;
+}