89 lines
2.4 KiB
Odin
89 lines
2.4 KiB
Odin
package impl_glfw_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 "vendor:glfw"
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import gl "vendor:OpenGL"
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import imgui ".."
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import imgui_glfw "../glfw"
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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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glfw_error_cb :: proc "c" (error: i32, desc: cstring) {
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context = runtime.default_context()
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fmt.eprintln("[GLFW Error]", error, desc)
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}
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run :: proc() -> b32 {
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glfw.SetErrorCallback(glfw_error_cb)
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glfw.Init() or_return
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glsl_version: cstring = "#version 330"
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// glsl_version: cstring = "#version 130"
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glfw.WindowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
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glfw.WindowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
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glfw.WindowHint(glfw.CONTEXT_VERSION_MINOR, 2)
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glfw.WindowHint(glfw.OPENGL_FORWARD_COMPAT, true)
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window := glfw.CreateWindow(1280, 720, "Test", nil, nil)
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if window == nil do return false
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glfw.MakeContextCurrent(window)
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glfw.SwapInterval(1)
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gl.load_up_to(3, 3, glfw.gl_set_proc_address)
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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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