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Examples: SDL: Initial attempt at implementing the viewport/platform api. (WIP/test API) (#1542)

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ImGui_ImplSDL2_Init() now takes a SDL GL context.
This commit is contained in:
omar
2018-02-27 23:30:39 +01:00
parent 4cee46f909
commit cb601d79e8
5 changed files with 261 additions and 50 deletions
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20
examples/sdl_opengl3_example/main.cpp
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@ -30,17 +30,19 @@ int main(int, char**)
SDL_DisplayMode current;
SDL_GetCurrentDisplayMode(0, &current);
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
SDL_GLContext gl_context = SDL_GL_CreateContext(window);
SDL_GL_SetSwapInterval(1); // Enable vsync
gl3wInit();
// Setup ImGui binding
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
ImGui_ImplSDL2_Init(window);
ImGui_ImplOpenGL3_Init();
io.ConfigFlags |= ImGuiConfigFlags_MultiViewports;
//io.NavFlags |= ImGuiNavFlags_EnableKeyboard;
ImGui_ImplSDL2_Init(window, gl_context);
ImGui_ImplOpenGL3_Init();
// Setup style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();
@ -78,6 +80,8 @@ int main(int, char**)
ImGui_ImplSDL2_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplSDL2_NewFrame(window);
@ -120,11 +124,17 @@ int main(int, char**)
}
// Rendering
glViewport(0, 0, (int)ImGui::GetIO().DisplaySize.x, (int)ImGui::GetIO().DisplaySize.y);
SDL_GL_MakeCurrent(window, gl_context);
glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindows();
SDL_GL_MakeCurrent(window, gl_context);
SDL_GL_SwapWindow(window);
}
@ -133,7 +143,7 @@ int main(int, char**)
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();
SDL_GL_DeleteContext(glcontext);
SDL_GL_DeleteContext(gl_context);
SDL_DestroyWindow(window);
SDL_Quit();