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Allegro 5 example: main.cpp matches other examples. added window title.

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ocornut 9 years ago
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4 changed files with 92 additions and 78 deletions
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  1. 6
      examples/README.txt
  2. 3
      examples/allegro5_example/imgui_impl_a5.cpp
  3. 18
      examples/allegro5_example/imgui_impl_a5.h
  4. 143
      examples/allegro5_example/main.cpp

6
examples/README.txt
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@ -4,11 +4,10 @@ I choose to provide Visual Studio 10 .sln files and Makefile for Linux/OSX.
Please let me know if they don't work with your setup!
You can probably just import the .cpp files into your own system and figure out the linkage from there.
opengl_example/
OpenGL example, using GLFW + fixed pipeline.
This is simple and should work for all OpenGL enabled applications.
Prefer following this example since it is the shortest one!
Prefer following this example to learn how ImGui works, because it is the simplest shortest one!
opengl3_example/
OpenGL example, using GLFW/GL3W + programmable pipeline.
@ -28,3 +27,6 @@ ios_example/
sdl_opengl_example/
SDL2 + OpenGL example.
allegro5_example/
Allegro 5 example.

3
examples/allegro5_example/imgui_impl_a5.cpp
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@ -1,7 +1,6 @@
// ImGui Allegro 5 bindings
// by @birthggd
// public domain
// https://github.com/ocornut/imgui
// by @birthggd, public domain
#include <stdint.h> // uint64_t
#include <cstring> // memcpy

18
examples/allegro5_example/imgui_impl_a5.h
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@ -1,16 +1,18 @@
// public domain
// ImGui Allegro 5 bindings
// https://github.com/ocornut/imgui
// by @birthggd, public domain
#pragma once
struct ALLEGRO_DISPLAY;
union ALLEGRO_EVENT;
bool ImGui_ImplA5_Init(ALLEGRO_DISPLAY *disp);
void ImGui_ImplA5_ProcessEvent(ALLEGRO_EVENT *ev);
void ImGui_ImplA5_Shutdown();
bool ImGui_ImplA5_Init(ALLEGRO_DISPLAY* display);
void ImGui_ImplA5_Shutdown();
void ImGui_ImplA5_NewFrame();
void ImGui_ImplA5_NewFrame();
bool Imgui_ImplA5_CreateDeviceObjects();
void ImGui_ImplA5_InvalidateDeviceObjects();
void ImGui_ImplA5_ProcessEvent(ALLEGRO_EVENT* event);
// Use if you want to reset your rendering device without losing ImGui state.
bool Imgui_ImplA5_CreateDeviceObjects();
void ImGui_ImplA5_InvalidateDeviceObjects();

143
examples/allegro5_example/main.cpp
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@ -1,3 +1,4 @@
// ImGui - standalone example application for Allegro 5
// public domain
#include <stdint.h>
@ -6,75 +7,85 @@
#include <imgui.h>
#include "imgui_impl_a5.h"
int main(int argc, char **argv)
int main(int, char**)
{
ALLEGRO_DISPLAY *disp;
ALLEGRO_EVENT_QUEUE *queue;
al_init();
al_install_keyboard();
al_install_mouse();
al_init_primitives_addon();
//al_set_new_display_option(ALLEGRO_VSYNC, 1, ALLEGRO_DONTCARE);
disp = al_create_display(1280, 800);
queue = al_create_event_queue();
al_register_event_source(queue, al_get_display_event_source(disp));
al_register_event_source(queue, al_get_keyboard_event_source());
al_register_event_source(queue, al_get_mouse_event_source());
ImGui_ImplA5_Init(disp);
bool show_test_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImColor(114, 144, 154);
bool running = true;
while (running) {
ALLEGRO_EVENT ev;
while (al_get_next_event(queue, &ev)) {
ImGui_ImplA5_ProcessEvent(&ev);
if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) running = false;
}
ImGui_ImplA5_NewFrame();
// Setup Allegro
al_init();
al_install_keyboard();
al_install_mouse();
al_init_primitives_addon();
ALLEGRO_DISPLAY* display = al_create_display(1280, 720);
al_set_window_title(display, "ImGui Allegro 5 example");
ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue();
al_register_event_source(queue, al_get_display_event_source(display));
al_register_event_source(queue, al_get_keyboard_event_source());
al_register_event_source(queue, al_get_mouse_event_source());
// Setup ImGui binding
ImGui_ImplA5_Init(display);
//ImGuiIO& io = ImGui::GetIO();
//ImFont* my_font0 = io.Fonts->AddFontDefault();
//ImFont* my_font1 = io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 16.0f);
//ImFont* my_font2 = io.Fonts->AddFontFromFileTTF("../../extra_fonts/Karla-Regular.ttf", 16.0f);
//ImFont* my_font3 = io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyClean.ttf", 13.0f); my_font3->DisplayOffset.y += 1;
//ImFont* my_font4 = io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyTiny.ttf", 10.0f); my_font4->DisplayOffset.y += 1;
//ImFont* my_font5 = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, io.Fonts->GetGlyphRangesJapanese());
bool show_test_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImColor(114, 144, 154);
// Main loop
bool running = true;
while (running)
{
static float f;
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);
ALLEGRO_EVENT ev;
while (al_get_next_event(queue, &ev))
{
ImGui_ImplA5_ProcessEvent(&ev);
if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) running = false;
}
ImGui_ImplA5_NewFrame();
// 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;
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
al_clear_to_color(al_map_rgba_f(clear_color.x, clear_color.y, clear_color.z, clear_color.w));
ImGui::Render();
al_flip_display();
}
if (show_another_window) {
ImGui::SetNextWindowSize(ImVec2(200, 100), ImGuiSetCond_FirstUseEver);
ImGui::Begin("Another Window", &show_another_window);
ImGui::Text("Hello");
ImGui::End();
}
// Cleanup
ImGui_ImplA5_Shutdown();
al_destroy_event_queue(queue);
al_destroy_display(display);
if (show_test_window) {
ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCond_FirstUseEver);
ImGui::ShowTestWindow(&show_test_window);
}
al_clear_to_color(al_map_rgba_f(clear_color.x, clear_color.y, clear_color.z, clear_color.w));
ImGui::Render();
al_flip_display();
}
ImGui_ImplA5_Shutdown();
al_destroy_event_queue(queue);
al_destroy_display(disp);
return 0;
return 0;
}

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