GServer

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/* $Id$ */

/* This file is part of DeforaOS Graphics GServer */

/* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, version 3 of the License.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>. */

#ifdef DEBUG

# include <stdio.h>

#endif

#include <string.h>

#include <SDL.h>

#include <GL/gl.h>

#include <GL/glu.h>

#include "GServer/video.h"

#include "../../config.h"

/* SDL */

/* private */

/* types */

typedef struct _SDLVideo

{

SDL_VideoInfo const * info;

unsigned int width;

unsigned int height;

} SDLVideo;

/* prototypes */

static int _sdl_init(GServerVideoPlugin * plugin);

static void _sdl_destroy(GServerVideoPlugin * plugin);

/* public */

/* variables */

GServerVideoPlugin video_plugin =

{

NULL,

"SDL",

_sdl_init,

_sdl_destroy,

NULL

};

/* private */

/* functions */

/* sdl_init */

static int _sdl_init(GServerVideoPlugin * plugin)

{

GServerPlatform * platform;

SDLVideo * sdl;

unsigned int depth;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s()\n", __func__);

#endif

if((sdl = object_new(sizeof(*sdl))) == NULL)

return 1;

plugin->priv = sdl;

platform = plugin->helper->get_platform(plugin->helper->gserver);

if(SDL_Init(SDL_INIT_VIDEO) < 0

|| (sdl->info = SDL_GetVideoInfo()) == NULL)

{

object_delete(sdl);

return 1;

}

sdl->width = gserverplatform_get_video_width(platform);

sdl->height = gserverplatform_get_video_height(platform);

depth = sdl->info->vfmt->BitsPerPixel;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s() (%ux%u@%u)\n", __func__, sdl->width,

sdl->height, depth);

#endif

SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);

if(SDL_SetVideoMode(sdl->width, sdl->height, depth,

SDL_OPENGL | SDL_FULLSCREEN) == 0)

{

object_delete(sdl);

return 1;

}

glShadeModel(GL_SMOOTH);

#ifdef DEBUG

fprintf(stderr, "DEBUG: glClearColor(%.1f, %.1f, %.1f, %.1f)\n", 0.0,

0.0, 0.0, 0.0);

#endif

glClearColor(0.0, 0.0, 0.0, 0.0);

glClearDepth(1.0);

glEnable(GL_DEPTH_TEST);

glDepthFunc(GL_LEQUAL);

glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);

glViewport(0, 0, sdl->width, sdl->height);

glMatrixMode(GL_PROJECTION);

glLoadIdentity();

if(sdl->height == 0)

sdl->height = 1;

gluPerspective(45.0, (GLfloat)sdl->width / (GLfloat)sdl->height, 0.1,

100.0);

glMatrixMode(GL_MODELVIEW);

glFlush();

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

SDL_GL_SwapBuffers();

return 0;

}

/* sdl_destroy */

static void _sdl_destroy(GServerVideoPlugin * plugin)

{

SDLVideo * sdl = plugin->priv;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s()\n", __func__);

#endif

SDL_Quit();

object_delete(sdl);

}