source: trunk/src/platform/sdl/sdlapp.cpp @ 1040

Last change on this file since 1040 was 1040, checked in by sam, 11 years ago

core: write a generic application class.

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File size: 2.0 KB
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1//
2// Lol Engine
3//
4// Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net>
5//   This program is free software; you can redistribute it and/or
6//   modify it under the terms of the Do What The Fuck You Want To
7//   Public License, Version 2, as published by Sam Hocevar. See
8//   http://sam.zoy.org/projects/COPYING.WTFPL for more details.
9//
10
11#if defined HAVE_CONFIG_H
12#   include "config.h"
13#endif
14
15#if defined USE_SDL
16#   include <SDL.h>
17#endif
18
19#include "core.h"
20#include "lolgl.h"
21#include "platform/sdl/sdlapp.h"
22#include "platform/sdl/sdlinput.h"
23
24namespace lol
25{
26
27/*
28 * SDL App implementation class
29 */
30
31class SdlAppData
32{
33    friend class SdlApp;
34
35private:
36    int unused;
37};
38
39/*
40 * Public SdlApp class
41 */
42
43SdlApp::SdlApp(char const *title, ivec2 res, float fps) :
44    data(new SdlAppData())
45{
46#if defined USE_SDL
47    /* Initialise SDL */
48    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0)
49    {
50        Log::Error("cannot initialise SDL: %s\n", SDL_GetError());
51        exit(EXIT_FAILURE);
52    }
53
54    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
55    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
56    SDL_Surface *video = SDL_SetVideoMode(res.x, res.y, 0, SDL_OPENGL);
57    if (!video)
58    {
59        Log::Error("cannot create OpenGL screen: %s\n", SDL_GetError());
60        SDL_Quit();
61        exit(EXIT_FAILURE);
62    }
63
64    SDL_WM_SetCaption(title, NULL);
65    SDL_ShowCursor(0);
66
67    /* Initialise everything */
68    Ticker::Setup(fps);
69    Video::Setup(ivec2(video->w, video->h));
70    Audio::Setup(2);
71
72    /* Autoreleased objects */
73    new SdlInput();
74#endif
75}
76
77void SdlApp::Run()
78{
79    while (!Ticker::Finished())
80    {
81        /* Tick the game */
82        Ticker::TickGame();
83
84        /* Tick the renderer, show the frame and clamp to desired framerate. */
85        Ticker::TickDraw();
86#if defined USE_SDL
87        SDL_GL_SwapBuffers();
88#endif
89        Ticker::ClampFps();
90    }
91}
92
93SdlApp::~SdlApp()
94{
95#if defined USE_SDL
96    SDL_Quit();
97#endif
98    delete data;
99}
100
101} /* namespace lol */
102
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