92 lines
2.4 KiB
Odin
92 lines
2.4 KiB
Odin
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package impl_wini32_opengl3
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import "base:runtime"
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import "core:os"
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import "core:fmt"
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import win32 "core:sys/windows"
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import gl "vendor:OpenGL"
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import imgui ".."
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import imgui_win32 "../win32"
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import imgui_gl3 "../opengl3"
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main :: proc() {
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run()
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}
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win32_hrc: win32.HGLRC
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win32_main_window: win32.HDC
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win32_width: i32
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win32_height: i32
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win32_gl_create :: proc(hwnd: win32.HWND, data: win32.HDC) -> b8
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{
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hdc: win32.HDC = win32.GetDC(hwnd)
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pfd: win32.PIXELFORMATDESCRIPTOR = {}
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pfd.nSize = size_of(pfd)
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pfd.nVersion = 1
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pfd.dwFlags = 0 // TODO flags
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pfd.iPixelType = 0 // more flags
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pfd.cColorBits = 32
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pf: i32 = win32.ChoosePixelFormat(hdc, &pfd)
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if pf == 0 do return false
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if !win32.SetPixelFormat(hdc, pf, &pfd) do return false
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win32.ReleaseDC(hwnd, hdc)
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data = win32.GetDC(hwnd)
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if win32_hrc == 0 do win32_hrc = win32.wglCreateContext(data)
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return true
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}
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run :: proc() -> b32 {
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wc: win32.WNDCLASSEXW = {}
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imgui.CreateContext(nil)
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io := imgui.GetIO()
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io.ConfigFlags |= imgui.ConfigFlags.NavEnableKeyboard
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io.ConfigFlags |= imgui.ConfigFlags.NavEnableGamepad
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imgui.StyleColorsDark(nil)
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imgui_glfw.InitForOpenGL(window, true)
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imgui_gl3.InitEx(glsl_version)
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clear_color: [4]f32 = {0.45, 0.55, 0.60, 1.00}
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_cc := clear_color.xyz
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show_demo: b8 = true
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for !glfw.WindowShouldClose(window) {
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glfw.PollEvents()
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if glfw.GetWindowAttrib(window, glfw.ICONIFIED) != 0 {
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imgui_glfw.Sleep(10)
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continue
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}
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imgui_gl3.NewFrame()
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imgui_glfw.NewFrame()
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imgui.NewFrame()
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if imgui.Button("Toggle DearImgui Demo") do show_demo = !show_demo
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if show_demo do imgui.ShowDemoWindow(&show_demo)
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_cc = clear_color.xyz
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imgui.ColorEdit3("clear color", &_cc, .None)
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imgui.SliderFloat3("clear color", &_cc, 0, 1)
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clear_color.xyz = _cc
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imgui.Render()
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dw, dh:= glfw.GetFramebufferSize(window)
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gl.Viewport(0, 0, dw, dh)
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gl.ClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
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gl.Clear(gl.COLOR_BUFFER_BIT);
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imgui_gl3.RenderDrawData(imgui.GetDrawData());
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glfw.SwapBuffers(window);
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}
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imgui_gl3.Shutdown()
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imgui_glfw.Shutdown()
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imgui.DestroyContext(nil)
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glfw.DestroyWindow(window)
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glfw.Terminate()
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return true
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}
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