101 lines
2.9 KiB
Odin
101 lines
2.9 KiB
Odin
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package impl_sdl2_opengl3
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import os "core:os"
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import fmt "core:fmt"
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import sdl "vendor:sdl2"
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import gl "vendor:OpenGL"
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import imgui ".."
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import imgui_sdl2 "../sdl2"
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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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run :: proc() -> b32 {
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if sdl.Init({.VIDEO, .GAMECONTROLLER, .TIMER}) != 0 {
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fmt.eprintln(sdl.GetError())
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return false
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}
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glsl_version: cstring = "#version 330"
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sdl.GL_SetAttribute(.CONTEXT_FLAGS, 0)
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sdl.GL_SetAttribute(.CONTEXT_PROFILE_MASK, i32(sdl.GLprofile.CORE))
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sdl.GL_SetAttribute(.CONTEXT_MAJOR_VERSION, 3)
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sdl.GL_SetAttribute(.CONTEXT_MINOR_VERSION, 0)
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sdl.GL_SetAttribute(.DOUBLEBUFFER, 1)
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sdl.GL_SetAttribute(.DEPTH_SIZE, 24)
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sdl.GL_SetAttribute(.STENCIL_SIZE, 8)
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window_flags: sdl.WindowFlags = {.OPENGL, .RESIZABLE, .HIDDEN, .ALLOW_HIGHDPI}
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window := sdl.CreateWindow("Test", sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED, 1280, 720, window_flags)
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if window == nil {
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fmt.eprintln(sdl.GetError())
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return false
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}
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gl_ctx := sdl.GL_CreateContext(window)
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if gl_ctx == nil {
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fmt.eprintln(sdl.GetError())
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return false
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}
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sdl.GL_MakeCurrent(window, gl_ctx)
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gl.load_up_to(3, 3, sdl.gl_set_proc_address)
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sdl.GL_SetSwapInterval(1)
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sdl.ShowWindow(window)
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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_sdl2.InitForOpenGL(window, gl_ctx)
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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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done: b32 = false
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show_demo: b8 = true
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for !done {
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event: sdl.Event
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for sdl.PollEvent(&event) {
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imgui_sdl2.ProcessEvent(&event)
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if event.type == .QUIT do done = true
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if event.type == .WINDOWEVENT && event.window.event == .CLOSE do done = true
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}
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imgui_gl3.NewFrame()
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imgui_sdl2.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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gl.Viewport(0, 0, i32(io.DisplaySize.x), i32(io.DisplaySize.y))
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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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sdl.GL_SwapWindow(window);
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}
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imgui_gl3.Shutdown()
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imgui_sdl2.Shutdown()
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imgui.DestroyContext(nil)
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sdl.GL_DeleteContext(gl_ctx)
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sdl.DestroyWindow(window)
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sdl.Quit()
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return true
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}
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