IMGUI_API void ImGui_Service_Shutdown() {
if (glMajorVersion < 3)
return ImGui_ImplSdl_Shutdown();
else
return ImGui_ImplSdlGL3_Shutdown();
}
void ImGuiRendererSDLGL1::shutdown() {
ImGui_ImplSdl_Shutdown();
}
int main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
return -1;
// Setup window
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_DisplayMode current;
SDL_GetCurrentDisplayMode(0, ¤t);
SDL_Window *sdl_window = SDL_CreateWindow("testbed", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
SDL_GLContext glcontext = SDL_GL_CreateContext(sdl_window);
// Setup ImGui binding
ImGui_ImplSdl_Init(sdl_window);
// OpenAL: Open and initialize a device with default settings
// and set current context, making the program ready to call OpenAL functions.
ALCdevice* alc_device = NULL;
ALCcontext* alc_ctx = NULL;
const char* alc_device_spec = NULL;
const char* alc_ext = NULL;
const char* al_vendor = NULL;
const char* al_renderer = NULL;
const char* al_version = NULL;
const char* al_ext = NULL;
{
alc_device = alcOpenDevice(NULL);
if(!alc_device)
{
ERR("Could not open a device!\n");
return 1;
}
alc_ctx = alcCreateContext(alc_device, NULL);
if(alc_ctx == NULL || alcMakeContextCurrent(alc_ctx) == ALC_FALSE)
{
if(alc_ctx != NULL)
alcDestroyContext(alc_ctx);
alcCloseDevice(alc_device);
ERR("Could not set a context!\n");
return 1;
}
alc_device_spec = alcGetString(alc_device, ALC_DEVICE_SPECIFIER);
alc_ext = alcGetString(alc_device, ALC_EXTENSIONS);
//alcGetIntegerv(alc_device, ALC_MAJOR_VERSION, 1, &alc_major);
//alcGetIntegerv(alc_device, ALC_MINOR_VERSION, 1, &alc_minor);
al_vendor = alGetString(AL_VENDOR);
al_renderer = alGetString(AL_RENDERER);
al_version = alGetString(AL_VERSION);
al_ext = alGetString(AL_EXTENSIONS);
}
// Load resource
SResources Resources;
{
bool ok = LoadResources(Resources);
if (!ok) {
ERR("Could not load all program resource.\n");
return 1;
}
}
// openal sources
SMgrState MgrState;
SEmitter* SpatialEmit;
SEmitter* AmbiantLoop;
{
Mgr_Init(MgrState);
SpatialEmit = &MgrState.Emitters[0];
AmbiantLoop = &MgrState.Emitters[1];
alSourcei(SpatialEmit->Source, AL_BUFFER, Resources.albuf_monoloop);
alSourcei(SpatialEmit->Source, AL_LOOPING, AL_TRUE);
alSourcei(SpatialEmit->Source, AL_DIRECT_CHANNELS_SOFT, AL_FALSE);
SpatialEmit->active = false;
SpatialEmit->dB = 0.f;
SpatialEmit->pos[0] = .5f;
SpatialEmit->pos[1] = .75f;
SpatialEmit->pos[2] = -3;
SpatialEmit->radius = 0.01f;
alSourcei(AmbiantLoop->Source, AL_BUFFER, Resources.albuf_stereoloop);
alSourcei(AmbiantLoop->Source, AL_LOOPING, AL_TRUE);
alSourcei(AmbiantLoop->Source, AL_DIRECT_CHANNELS_SOFT, AL_TRUE);
AmbiantLoop->active = false;
AmbiantLoop->dB = -9.f;
}
// Main loop
bool done = false;
while (!done)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSdl_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
}
uint CurTimeMs = SDL_GetTicks();
int ActiveSources = Mgr_Update(MgrState);
ImGui_ImplSdl_NewFrame(sdl_window);
ImGui::SetNextWindowPos(ImVec2(10, 10));
ImGui::SetNextWindowSize(ImVec2(500, 700));
ImGui::Begin("main", NULL, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoMove);
// top bar.
{
if (ImGui::Button("Quit"))
break;
ImGui::SameLine();
static bool ShowImguiHelp = false;
ImGui::Checkbox("show imgui help", &ShowImguiHelp);
if (ShowImguiHelp)
ImGui::ShowTestWindow(); // documentation shortcut
}
ImGui::Spacing(); // -----------------
// Openal info:
if (ImGui::CollapsingHeader("OpenAL info"))
{
ImGui::Columns(2, "OpenAL_info");
ImGui::Text("device"); ImGui::NextColumn(); ImGui::TextWrapped(alc_device_spec); ImGui::NextColumn();
ImGui::Text("vendor"); ImGui::NextColumn(); ImGui::TextWrapped(al_vendor); ImGui::NextColumn();
ImGui::Text("renderer"); ImGui::NextColumn(); ImGui::TextWrapped(al_renderer); ImGui::NextColumn();
ImGui::Text("version"); ImGui::NextColumn(); ImGui::TextWrapped(al_version); ImGui::NextColumn();
ImGui::Separator();
ImGui::Text("ALC extensions"); ImGui::NextColumn(); ImGui::TextWrapped(alc_ext); ImGui::NextColumn();
ImGui::Separator();
ImGui::Text("AL extensions"); ImGui::NextColumn(); ImGui::TextWrapped(al_ext); ImGui::NextColumn();
ImGui::Columns(1);
}
ImGui::Spacing(); // -----------------
// basic test
if (ImGui::CollapsingHeader("Basic", NULL, true, true))
{
static float mono_gaindB = -3.f;
static float stereo_gaindB = -3.f;
if (ImGui::Button("Play mono"))
{
Mgr_Play(MgrState, Resources.albuf_mono, mono_gaindB);
}
ImGui::SameLine();
ImGui::SliderFloat("##vol1", &mono_gaindB, -60, 6, "%.1fdB");
if (ImGui::Button("Play stereo"))
{
Mgr_Play(MgrState, Resources.albuf_stereo, stereo_gaindB);
}
ImGui::SameLine();
ImGui::SliderFloat("##vol2", &stereo_gaindB, -60, 6, "%.1fdB");
}
ImGui::Spacing(); // -----------------
// Direct
if (ImGui::CollapsingHeader("Direct", NULL, true, true))
{
ImGui::Checkbox("Ambiance", &AmbiantLoop->active);
ImGui::SameLine();
ImGui::SliderFloat("##vol0", &AmbiantLoop->dB, -60, 6, "%.1fdB");
}
ImGui::Spacing(); // -----------------
// Spatialized
if (ImGui::CollapsingHeader("Spatialized", NULL, true, true))
{
ImGui::Checkbox("Mosquito", &SpatialEmit->active);
ImGui::SameLine();
ImGui::SliderFloat("##vol4", &SpatialEmit->dB, -60, 6, "%.1fdB");
ImGui::SliderFloat("radius", &SpatialEmit->radius, 0, 5);
static uint PrevTime = 0;
static float PrevPos[3];
static bool automove = false;
ImGui::Checkbox("Auto move", &automove);
if (automove) {
struct SLocal {
static void anim(float t, float v[3]) {
float w = (t*2*PI);
v[0] = 5*sinf(w*2+1) + 3*sinf(w*6+2) + 2*sinf(w*6+3) + 1*sinf(w*9+4);
v[1] = 5*sinf(w*3+5) + 3*sinf(w*4+6) + 2*sinf(w*7+7) + 1*sinf(w*8+8);
v[2] = 5*sinf(w*4+9) + 3*sinf(w*5+1) + 2*sinf(w*8+2) + 1*sinf(w*7+3);
}
};
float t = (CurTimeMs % 60000) / 60000.f;
SLocal::anim(t, SpatialEmit->pos);
}
ImGui::InputFloat3("pos", SpatialEmit->pos);
ImGui::InputFloat3("vel", SpatialEmit->vel);
ImGuiPointOnMap("top", &SpatialEmit->pos[0], &SpatialEmit->pos[2], SpatialEmit->radius, 10, 0.25f);
ImGui::SameLine();
ImGuiPointOnMap("front", &SpatialEmit->pos[0], &SpatialEmit->pos[1], SpatialEmit->radius, 10, 0.25f);
if (PrevTime != 0 && CurTimeMs > PrevTime) {
float dt = 0.001f*(CurTimeMs-PrevTime);
float k = 1.f;
SpatialEmit->vel[0] = k * ((SpatialEmit->pos[0] - PrevPos[0]) / dt);
SpatialEmit->vel[1] = k * ((SpatialEmit->pos[1] - PrevPos[1]) / dt);
SpatialEmit->vel[2] = k * ((SpatialEmit->pos[2] - PrevPos[2]) / dt);
}
PrevTime = CurTimeMs;
memcpy(PrevPos, SpatialEmit->pos, sizeof(PrevPos));
}
ImGui::Spacing(); // -----------------
// basic test
if (ImGui::CollapsingHeader("Tests", NULL, true, true))
{
static const float Front[3] = {0,0,-1};
if (ImGui::Button("stereo base"))
{
Mgr_Play(MgrState, Resources.albuf_stereo, -3, false);
}
ImGui::SameLine();
if (ImGui::Button("stereo direct"))
{
Mgr_Play(MgrState, Resources.albuf_stereo, -3, true);
}
if (ImGui::Button("mono base"))
{
Mgr_Play(MgrState, Resources.albuf_mono, -3, false);
}
ImGui::SameLine();
if (ImGui::Button("mono direct"))
{
Mgr_Play(MgrState, Resources.albuf_mono, -3, true);
}
ImGui::SameLine();
if (ImGui::Button("mono 3d narrow"))
{
Mgr_Play(MgrState, Resources.albuf_mono, -3, Front, 0.01f);
}
ImGui::SameLine();
if (ImGui::Button("mono 3d wide"))
{
Mgr_Play(MgrState, Resources.albuf_mono, -3, Front, 1.f);
}
ImGui::SameLine();
if (ImGui::Button("mono 3d omni"))
{
Mgr_Play(MgrState, Resources.albuf_mono, -3, Front, 10.f);
}
}
ImGui::Spacing(); // -----------------
// status
{
ImGui::Separator();
ImGui::Text("Active Sources: %d / %d\n", ActiveSources, MGR_MAX_SOURCES);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
}
ImGui::End();
// Rendering
ImVec4 clear_color = ImColor(114, 144, 154);
glViewport(0, 0, (int)ImGui::GetIO().DisplaySize.x, (int)ImGui::GetIO().DisplaySize.y);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
ImGui::Render();
SDL_GL_SwapWindow(sdl_window);
}
Mgr_Destroy(MgrState);
FreeResources(Resources);
// OpenAL: cleanup
{
alcMakeContextCurrent(NULL);
alcDestroyContext(alc_ctx);
alcCloseDevice(alc_device);
}
// Cleanup
ImGui_ImplSdl_Shutdown();
SDL_GL_DeleteContext(glcontext);
SDL_DestroyWindow(sdl_window);
SDL_Quit();
return 0;
}
int SDL_main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
return -1;
// Setup window
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_DisplayMode current;
SDL_GetCurrentDisplayMode(0, ¤t);
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
// Setup ImGui binding
ImGui_ImplSdl_Init(window);
// Load Fonts
// (see extra_fonts/README.txt for more details)
//ImGuiIO& io = ImGui::GetIO();
//io.Fonts->AddFontDefault();
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/Cousine-Regular.ttf", 15.0f);
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyClean.ttf", 13.0f);
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyTiny.ttf", 10.0f);
//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
// Merge glyphs from multiple fonts into one (e.g. combine default font with another with Chinese glyphs, or add icons)
//ImWchar icons_ranges[] = { 0xf000, 0xf3ff, 0 };
//ImFontConfig icons_config; icons_config.MergeMode = true; icons_config.PixelSnapH = true;
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 18.0f);
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/fontawesome-webfont.ttf", 18.0f, &icons_config, icons_ranges);
bool show_test_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImColor(114, 144, 154);
// Main loop
bool done = false;
while (!done)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSdl_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
}
ImGui_ImplSdl_NewFrame(window);
// 1. Show a simple window
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug"
{
static float f = 0.0f;
ImGui::Text("Hello, world!");
ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
ImGui::ColorEdit3("clear color", (float*)&clear_color);
if (ImGui::Button("Test Window")) show_test_window ^= 1;
if (ImGui::Button("Another Window")) show_another_window ^= 1;
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
}
// 2. Show another simple window, this time using an explicit Begin/End pair
if (show_another_window)
{
ImGui::SetNextWindowSize(ImVec2(200,100), ImGuiSetCond_FirstUseEver);
ImGui::Begin("Another Window", &show_another_window);
ImGui::Text("Hello");
ImGui::End();
}
// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
if (show_test_window)
{
ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCond_FirstUseEver);
ImGui::ShowTestWindow(&show_test_window);
}
// Rendering
glViewport(0, 0, (int)ImGui::GetIO().DisplaySize.x, (int)ImGui::GetIO().DisplaySize.y);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
ImGui::Render();
SDL_GL_SwapWindow(window);
}
// Cleanup
ImGui_ImplSdl_Shutdown();
SDL_GL_DeleteContext(glcontext);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
int main(int argc, char *argv[])
{
if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
{
Printf("Failed to initialize SDL: %s\n", SDL_GetError());
return -1;
}
VideoMode mode = {};
mode.width = 800;
mode.height = 600;
mode.gl_major = 1;
mode.gl_minor = 5;
mode.double_buffer = 1;
mode.depth_bits = 24;
mode.stencil_bits = 8;
mode.multisamples = 4;
mode.swap_interval = 1;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, mode.gl_major);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, mode.gl_minor);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, mode.double_buffer);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, mode.depth_bits);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, mode.stencil_bits);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, mode.multisamples>0?1:0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, mode.multisamples);
mode.window = SDL_CreateWindow(
"World Simulator",
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
mode.width, mode.height,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
if (!mode.window)
{
Printf("Failed to create a window: %s\n", SDL_GetError());
return -1;
}
SDL_GLContext context = SDL_GL_CreateContext(mode.window);
// Note: This must be set on a valid context
SDL_GL_SetSwapInterval(mode.swap_interval);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &mode.gl_major);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &mode.gl_minor);
SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &mode.double_buffer);
SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &mode.depth_bits);
SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, &mode.stencil_bits);
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &mode.multisamples);
mode.swap_interval = SDL_GL_GetSwapInterval();
sim_init_msgs(false);
ImGui_ImplSdl_Init(mode.window);
STATE = sim_init((u32)get_tick());
HISTORY_LENGTH = 0;
bool running = true;
u64 initial_tick = get_tick();
u64 last_frame_t = initial_tick;
r32 elapsed_time = 0.0f;
r32 delta_time = 1.0f / 60.0f;
while (running)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSdl_ProcessEvent(&event);
switch (event.type)
{
case SDL_WINDOWEVENT:
{
switch (event.window.event)
{
case SDL_WINDOWEVENT_SIZE_CHANGED:
{
Printf("Window %d size changed to %dx%d\n",
event.window.windowID,
event.window.data1,
event.window.data2);
mode.width = event.window.data1;
mode.height = event.window.data2;
} break;
}
} break;
case SDL_QUIT:
{
running = false;
} break;
}
}
gui_tick(mode, elapsed_time, delta_time);
SDL_GL_SwapWindow(mode.window);
delta_time = time_since(last_frame_t);
if (mode.fps_lock > 0)
{
r32 target_time = 1.0f / (r32)mode.fps_lock;
r32 sleep_time = target_time - delta_time;
if (sleep_time >= 0.01f)
SDL_Delay((u32)(sleep_time * 1000.0f));
delta_time = time_since(last_frame_t);
}
last_frame_t = get_tick();
elapsed_time = time_since(initial_tick);
GLenum error = glGetError();
if (error != GL_NO_ERROR)
{
Printf("An error occurred: %s\n", gl_error_message(error));
running = false;
}
}
ImGui_ImplSdl_Shutdown();
SDL_GL_DeleteContext(context);
SDL_DestroyWindow(mode.window);
SDL_Quit();
return 0;
}