static void process_events( void )
{
/* Our SDL event placeholder. */
SDL_Event event;
/* Grab all the events off the queue. */
while( SDL_PollEvent( &event ) ) {
switch( event.type ) {
case SDL_MOUSEMOTION:
s.pos.x = 30*( event.motion.x - width /2) / (double)width;
s.pos.y = -12*( event.motion.y - height/2) / (double)height;
printf("%f %f\n",s.pos.x,s.pos.y);
break;
case SDL_KEYDOWN:
/* Handle key presses. */
handle_key_down( &event.key.keysym );
break;
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial( 0 );
break;
}
}
}
static void process_events( void )
{
/* Our SDL event placeholder. */
SDL_Event event;
/* Grab all the events off the queue. */
while( SDL_PollEvent( &event ) ) {
switch( event.type ) {
case SDL_KEYUP:
handle_key_up( &event.key.keysym );
break;
case SDL_KEYDOWN:
/* Handle key presses. */
handle_key_down( &event.key.keysym );
break;
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial( 0 );
break;
}
}
}
static void handle_key_down( SDL_keysym* keysym )
{
switch( keysym->sym ) {
case SDLK_ESCAPE:
quit_tutorial( 0 );
break;
case SDLK_SPACE:
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
s.expand();
break;
default:
break;
}
}
static void handle_key_down( SDL_keysym* keysym )
{
switch( keysym->sym ) {
case SDLK_ESCAPE:
quit_tutorial( 0 );
break;
case SDLK_LEFT:
if( tim_x.running() )
{
tim_x.pause();
}
else
{
tim_x.count_up();
tim_x.resume();
}
break;
case SDLK_RIGHT:
if( tim_x.running() )
{
tim_x.pause();
}
else
{
tim_x.count_down();
tim_x.resume();
}
break;
case SDLK_DOWN:
if( tim_y.running() )
{
tim_y.pause();
}
else
{
tim_y.count_up();
tim_y.resume();
}
break;
case SDLK_UP:
if( tim_y.running() )
{
tim_y.pause();
}
else
{
tim_y.count_down();
tim_y.resume();
}
break;
default:
break;
}
}
static void process_events( void )
{
/* Our SDL event placeholder. */
SDL_Event event;
/* Grab all the events off the queue. */
while( SDL_PollEvent( &event ) ) {
switch( event.type ) {
case SDL_KEYDOWN:
/* Handle key presses. */
handle_key_down( &event.key.keysym );
break;
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial( 0 );
break;
case SDL_VIDEORESIZE:
{
glViewport(0, 0, (GLsizei) event.resize.w, (GLsizei) event.resize.h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float w = (float)event.resize.w;
float h = (float)event.resize.h;
gluPerspective( 60.0, w/h, 1.0, 1024.0 );
glMatrixMode(GL_MODELVIEW);
g_pTextDriver->getScreenParams(event.resize.w, event.resize.h);
}
break;
}
}
}
static void process_events( void )
{
/* Our SDL event placeholder. */
SDL_Event event;
g_mouse.rel_x = g_mouse.rel_y = 0;
/* Grab all the events off the queue. */
while( SDL_PollEvent( &event ) ) {
if(UI::Update(&event))
continue;
switch( event.type ) {
case SDL_KEYDOWN:
handle_key_down( &event.key.keysym );
break;
case SDL_MOUSEMOTION:
g_mouse.x = event.motion.x;
g_mouse.y = event.motion.y;
g_mouse.rel_x = event.motion.xrel;
g_mouse.rel_y = event.motion.yrel;
break;
case SDL_MOUSEBUTTONDOWN:
if(event.button.button == SDL_BUTTON_WHEELUP || event.button.button == SDL_BUTTON_WHEELDOWN)
g_camera.dist += event.button.button == SDL_BUTTON_WHEELUP ? 2 : -2;
else
g_mouse.buttons[event.button.button-1] = true;
break;
case SDL_MOUSEBUTTONUP:
if(event.button.button == SDL_BUTTON_WHEELUP || event.button.button == SDL_BUTTON_WHEELDOWN)
g_camera.dist += event.button.button == SDL_BUTTON_WHEELUP ? 2 : -2;
else
g_mouse.buttons[event.button.button-1] = false;
break;
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial( 0 );
break;
case SDL_VIDEORESIZE:
{
glViewport(0, 0, (GLsizei) event.resize.w, (GLsizei) event.resize.h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float w = (float)event.resize.w;
float h = (float)event.resize.h;
g_width = event.resize.w;
g_height = event.resize.h;
//gluPerspective( 60.0, w/h, 1.0, 1024.0 );
gluOrtho2D(-1.0*w/h,1.0*w/h,-1,1);
glMatrixMode(GL_MODELVIEW);
g_pTextDriver->getScreenParams(event.resize.w, event.resize.h);
}
break;
}
}
}
static void handle_key_down( SDL_keysym* keysym )
{
// handle only non-unicode symbols
if(keysym->mod & KMOD_LALT && keysym->sym == SDLK_RETURN)
{
//SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
//if(g_flags&SDL_FULLSCREEN)
g_flags ^= SDL_FULLSCREEN;
SDL_SetVideoMode(g_width, g_height, g_bpp, g_flags);
return;
}
if(!dconsole::Instance().isOpened() && SDLK_TAB == keysym->sym)
{
dconsole::Instance().setOpen(true);
}
else if(dconsole::Instance().isOpened())
{
bool mod_pressed = !!(keysym->mod & KMOD_LCTRL);
if(!mod_pressed) // things like "crtl+space" should not add space!
dconsole::Console::onKbdEvent(keysym);
switch( keysym->sym ) {
// execute command
case SDLK_RETURN: dconsole::Console::onKbdExecute(); break;
// match list
case SDLK_UP: dconsole::Console::onKbdPrev(mod_pressed); break;
case SDLK_DOWN: dconsole::Console::onKbdNext(mod_pressed); break;
case SDLK_PAGEUP: dconsole::Console::onKbdPrevPage(mod_pressed); break;
case SDLK_PAGEDOWN: dconsole::Console::onKbdNextPage(mod_pressed); break;
// cmd line
case SDLK_SPACE: if(mod_pressed) dconsole::Console::onKbdAutocomplete(); break;
case SDLK_BACKSPACE: dconsole::Console::onKbdBackspace(); break;
case SDLK_HOME: dconsole::Console::onKbdMoveHome(); break;
case SDLK_END: dconsole::Console::onKbdMoveEnd(); break;
case SDLK_LEFT: dconsole::Console::onKbdMoveLeft(); break;
case SDLK_RIGHT: dconsole::Console::onKbdMoveRight(); break;
case SDLK_DELETE: dconsole::Console::onKbdDelete(); break;
}
}
switch( keysym->sym ) {
case SDLK_ESCAPE:
quit_tutorial( 0 );
break;
/*case SDLK_SPACE:
should_rotate = !should_rotate;
break;*/
default:
break;
}
}
static void process_events( void )
{
/* Our SDL event placeholder. */
SDL_Event event;
/* Grab all the events off the queue. */
while( SDL_PollEvent( &event ) ) {
switch( event.type ) {
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial( 0 );
break;
}
}
}
static void handle_key_down( SDL_keysym* keysym ) {
/*
* We’re only interested if ’Esc’ has
* been presssed.
*
* EXERCISE:
* Handle the arrow keys and have that change the
* viewing position/angle.
*/
switch( keysym->sym ) {
case SDLK_ESCAPE:
quit_tutorial( 0 );
break;
case SDLK_SPACE:
should_rotate = !should_rotate;
break;
default:
break;
}
}
int main()
{
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
/* Color depth in bits of our window. */
int bpp = 0;
/* Flags we will pass into SDL_SetVideoMode. */
int flags = 0;
/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
/* Failed, exit. */
fprintf( stderr, "Video initialization failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
SDL_ShowCursor( false );
/* Let's get some video information. */
info = SDL_GetVideoInfo( );
if( !info ) {
/* This should probably never happen. */
fprintf( stderr, "Video query failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* Set our width/height to 640/480 (you would
* of course let the user decide this in a normal
* app). We get the bpp we will request from
* the display. On X11, VidMode can't change
* resolution, so this is probably being overly
* safe. Under Win32, ChangeDisplaySettings
* can change the bpp.
*/
width = 1200;
height = 650;
// width = 1280;
// height = 768;
bpp = info->vfmt->BitsPerPixel;
/*
* Now, we want to setup our requested
* window attributes for our OpenGL window.
* We want *at least* 5 bits of red, green
* and blue. We also want at least a 16-bit
* depth buffer.
*
* The last thing we do is request a double
* buffered window. '1' turns on double
* buffering, '0' turns it off.
*
* Note that we do not use SDL_DOUBLEBUF in
* the flags to SDL_SetVideoMode. That does
* not affect the GL attribute state, only
* the standard 2D blitting setup.
*/
// SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
// SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
// SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
// SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 24 );
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 6 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
/*
* We want to request that SDL provide us
* with an OpenGL window, in a fullscreen
* video mode.
*
* EXERCISE:
* Make starting windowed an option, and
* handle the resize events properly with
* glViewport.
*/
flags = SDL_OPENGL | SDL_FULLSCREEN;
// flags = SDL_OPENGL;
/*
* Set the video mode
*/
if( SDL_SetVideoMode( width, height, bpp, flags ) == 0 ) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf( stderr, "Video mode set failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* At this point, we should have a properly setup
* double-buffered window for use with OpenGL.
*/
setup_opengl( width, height );
/*
* Now we want to begin our normal app process--
* an event loop with a lot of redrawing.
*/
while( 1 ) {
process_events();//Process incoming events.
draw_screen();//Draw the screen.
}
/*
* EXERCISE:
* Record timings using SDL_GetTicks() and
* and print out frames per second at program
* end.
*/
/* Never reached. */
return 0;
}
static void process_events(void)
{
/* Our SDL event placeholder. */
SDL_Event event;
/* Only poll + sleep if we are autoscrolling or doing
* something else that is interactive */
if (((autoscroll) && autoscroll_var) || key_button_down) {
if (!SDL_PollEvent(&event)) {
/* If we add a sleep, the scrolling won't be super smooth.
* Regardless, I think we need to find something to make sure we
* don't eat 100% cpu just checking for events.
*
* I found that 10ms is not a bad wait. Theoretically we want to
* wait 1000ms / fps (usually 60) -> 16ms.
* */
usleep(16000);
if (autoscroll) {
if (key_button_down & LEAST_KEY_DOWN)
autoscroll_var += 1;
if (key_button_down & LEAST_KEY_UP)
autoscroll_var -= 1;
scroll -= autoscroll_var;
} else {
if (key_button_down & LEAST_KEY_DOWN)
scroll -= 5;
if (key_button_down & LEAST_KEY_UP)
scroll += 5;
}
redraw = 1;
}
} else {
SDL_WaitEvent(&event);
}
next_event:
switch (event.type) {
case SDL_KEYDOWN:
/* Handle key presses. */
handle_key_down(&event.key.keysym);
break;
case SDL_KEYUP:
handle_key_up(&event.key.keysym);
break;
case SDL_QUIT:
/* Handle quit requests (like Ctrl-c). */
quit_tutorial(0);
break;
case SDL_VIDEORESIZE:
handle_resize(event.resize);
break;
case SDL_VIDEOEXPOSE:
redraw = 1;
break;
case SDL_MOUSEBUTTONDOWN:
handle_mouse_down(&event.button);
break;
case SDL_MOUSEBUTTONUP:
handle_mouse_up(&event.button);
break;
case SDL_MOUSEMOTION:
handle_mouse_motion(&event.motion);
break;
/* A thread completed its rendering
*
* The thread structure of the completed job is contained
* within the data1 pointer of the event.
*/
case LEAST_PAGE_COMPLETE:
finish_page_render((struct least_thread*)event.user.data1);
redraw = 1;
break;
}
/* Clear event, just in case SDL doesn't do this (TODO) */
memset(&event, 0, sizeof(SDL_Event));
/* If there are more events, handle them before drawing.
* This is required for scrolling with the mouse - without this,
* it is pretty slow and lags. */
if (SDL_PollEvent(&event)) {
goto next_event;
}
}
int setup_sdl(void)
{
/* Information about the current video settings. */
const SDL_VideoInfo *info = NULL;
/* Color depth in bits of our window. */
int bpp = 0;
/* Flags we will pass into SDL_SetVideoMode. */
int flags = 0;
/* First, initialize SDL's video subsystem. */
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
/* Failed, exit. */
fprintf(stderr, "Video initialization failed: %s\n",
SDL_GetError());
quit_tutorial(1);
}
/* Let's get some video information. */
info = SDL_GetVideoInfo();
if (!info) {
/* This should probably never happen. */
fprintf(stderr, "Video query failed: %s\n", SDL_GetError());
quit_tutorial(1);
}
/* Store current width and height, and more importantly
* store GL backbuffer size
*/
gl_w = w = info->current_w;
gl_h = h = info->current_h;
printf("W, H: (%f, %f)\n", w, h);
bpp = info->vfmt->BitsPerPixel;
/*
* Now, we want to setup our requested
* window attributes for our OpenGL window.
* We want *at least* 5 bits of red, green
* and blue. We also want at least a 16-bit
* depth buffer.
*
* The last thing we do is request a double
* buffered window. '1' turns on double
* buffering, '0' turns it off.
*
* Note that we do not use SDL_DOUBLEBUF in
* the flags to SDL_SetVideoMode. That does
* not affect the GL attribute state, only
* the standard 2D blitting setup.
*/
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
/* flags = SDL_OPENGL | SDL_FULLSCREEN; */
flags = SDL_OPENGL | SDL_RESIZABLE | SDL_DOUBLEBUF;
/* flags = SDL_OPENGL; */
surface = SDL_SetVideoMode(w, h, bpp, flags);
if (!surface) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf(stderr, "Video mode set failed: %s\n", SDL_GetError());
quit_tutorial(1);
}
SDL_WM_SetCaption("least", "least");
return 0;
}
static void handle_key_down(SDL_keysym * keysym)
{
unsigned int i;
switch (keysym->sym) {
case SDLK_ESCAPE:
quit_tutorial(0);
break;
case SDLK_DOWN:
key_button_down |= LEAST_KEY_DOWN;
break;
case SDLK_UP:
key_button_down |= LEAST_KEY_UP;
break;
case SDLK_PAGEDOWN:
scroll -= imh + 20;
redraw = 1;
break;
case SDLK_PAGEUP:
scroll += imh + 20;
redraw = 1;
break;
case SDLK_F5:
printf("refresh: Killing cache\n");
/* Kill all stored pages */
for (i = 0; i < pagec; i++)
if (pages[i].texture) {
printf("refresh: Killing page %d\n", i);
glDeleteTextures(1, &pages[i].texture);
pages[i].texture = 0;
} else if (pages[i].rendering) {
printf("refresh: Removing render flag from active page %d\n",
i);
pages[i].rendering = 0;
}
/* To prevent running renders with old settings from
* entering the refreshed cache, mark all threads
* as in pre-refresh state.
*/
for (i = 0; i < (unsigned int)thread_count; i++)
threads[i].pre_refresh = 1;
printf("refresh: Marked %d running threads as pre-refresh renders\n",
thread_count - idle_thread_count);
/* Finally update the render resolution to current window size */
printf("refresh: Changing size lock from %.2fx%.2f to %.2fx%.2f\n",
lw, lh, w, h);
lw = w;
lh = h;
break;
case SDLK_F11:
SDL_WM_ToggleFullScreen(surface);
toggle_fullscreen();
break;
case SDLK_F12:
if (autoscroll)
autoscroll = 0;
else
autoscroll = 1;
redraw = 1;
break;
default:
break;
}
}
int main( int argc, char* argv[] )
{
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
g_Time = InitTime();
/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
/* Failed, exit. */
fprintf( stderr, "Video initialization failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/* Let's get some video information. */
info = SDL_GetVideoInfo( );
if( !info ) {
/* This should probably never happen. */
fprintf( stderr, "Video query failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
g_bpp = info->vfmt->BitsPerPixel;
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8);
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
g_flags = SDL_OPENGL|SDL_HWPALETTE|/*SDL_NOFRAME|*/SDL_HWSURFACE/*|SDL_RESIZABLE*//*| SDL_FULLSCREEN*/;
/*
* Set the video mode
*/
if( SDL_SetVideoMode( g_width, g_height, g_bpp, g_flags ) == 0 ) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf( stderr, "Video mode set failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* At this point, we should have a properly setup
* double-buffered window for use with OpenGL.
*/
setup_opengl( g_width, g_height );
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
quit_tutorial(1);
}
fprintf(stdout, "Status: Using GLEW %s\n", glewGetString(GLEW_VERSION));
if (!GLEW_ARB_vertex_program || !GLEW_ARB_vertex_program)
{
fprintf(stderr, "No shader program support\n");
quit_tutorial(1);
}
if (glewIsSupported("GL_VERSION_2_0"))
printf("Ready for OpenGL 2.0\n");
else {
printf("OpenGL 2.0 not supported\n");
quit_tutorial(1);
}
/*
* Init OpenGL text driver which will
* be used by GraphicsConsole
*/
g_pTextDriver = new OGLTextDriver();
if( false == g_pTextDriver->init("FixedWidth.bmp", 8, 16, 16, g_width, g_height))
quit_tutorial( 1 );
register_commands();
GraphicsConsole::Instance().setTextDriver(g_pTextDriver);
SDL_EnableKeyRepeat(500, 30);
draw_velocity = glsl_program::makeProgram("drawVelocity", DATA_PATH"quad.vs", DATA_PATH"draw_velocity.fs");
draw_fluids = glsl_program::makeProgram("drawFluids", DATA_PATH"quad.vs", DATA_PATH"draw_fluids.fs");
assert(draw_velocity);
start_time = time(0);
g_fluids.createShaders();
g_fluids.createBuffers();
UI::Init(g_width, g_height);
g_fluids.createUI();
SDL_WM_SetCaption("console", 0);
/*
* Now we want to begin our normal app process--
* an event loop with a lot of redrawing.
*/
while( !g_exit ) {
UpdateTime(&g_Time);
/* Process incoming events. */
process_events( );
/* Draw the screen. */
draw_screen( );
}
quit_tutorial(0);
return 0;
}
int main( int argc, char* argv[] )
{
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
/* Failed, exit. */
fprintf( stderr, "Video initialization failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/* Let's get some video information. */
info = SDL_GetVideoInfo( );
if( !info ) {
/* This should probably never happen. */
fprintf( stderr, "Video query failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
g_bpp = info->vfmt->BitsPerPixel;
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8);
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
g_flags = SDL_OPENGL|SDL_HWPALETTE|/*SDL_NOFRAME|*/SDL_HWSURFACE/*|SDL_RESIZABLE*//*| SDL_FULLSCREEN*/;
/*
* Set the video mode
*/
if( SDL_SetVideoMode( g_width, g_height, g_bpp, g_flags ) == 0 ) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf( stderr, "Video mode set failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* At this point, we should have a properly setup
* double-buffered window for use with OpenGL.
*/
setup_opengl( g_width, g_height );
/*
* Init OpenGL text driver which will
* be used by GraphicsConsole
*/
g_pTextDriver = new OGLTextDriver();
if( false == g_pTextDriver->init("FixedWidth.bmp", 8, 16, 16, g_width, g_height))
quit_tutorial( 1 );
register_commands();
GraphicsConsole::Instance().setTextDriver(g_pTextDriver);
SDL_EnableKeyRepeat(500, 30);
SDL_WM_SetCaption("console", 0);
/*
* Now we want to begin our normal app process--
* an event loop with a lot of redrawing.
*/
while( !g_exit ) {
/* Process incoming events. */
process_events( );
/* Draw the screen. */
draw_screen( );
}
quit_tutorial(0);
/*
* EXERCISE:
* Record timings using SDL_GetTicks() and
* and print out frames per second at program
* end.
*/
/* Never reached. */
return 0;
}
int main( int argc, char* argv[] )
{
OBJSC model;
load_objsc("./Models/Dress.objsc", &model);
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
/* Dimensions of our window. */
int width = 0;
int height = 0;
/* Color depth in bits of our window. */
int bpp = 0;
/* Flags we will pass into SDL_SetVideoMode. */
int flags = 0;
/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
/* Failed, exit. */
fprintf( stderr, "Video initialization failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/* Let's get some video information. */
info = SDL_GetVideoInfo( );
if( !info ) {
/* This should probably never happen. */
fprintf( stderr, "Video query failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* Set our width/height to 640/480 (you would
* of course let the user decide this in a normal
* app). We get the bpp we will request from
* the display. On X11, VidMode can't change
* resolution, so this is probably being overly
* safe. Under Win32, ChangeDisplaySettings
* can change the bpp.
*/
width = 640;
height = 480;
bpp = info->vfmt->BitsPerPixel;
/*
* Now, we want to setup our requested
* window attributes for our OpenGL window.
* We want *at least* 5 bits of red, green
* and blue. We also want at least a 16-bit
* depth buffer.
*
* The last thing we do is request a double
* buffered window. '1' turns on double
* buffering, '0' turns it off.
*
* Note that we do not use SDL_DOUBLEBUF in
* the flags to SDL_SetVideoMode. That does
* not affect the GL attribute state, only
* the standard 2D blitting setup.
*/
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
/*
* We want to request that SDL provide us
* with an OpenGL window, in a fullscreen
* video mode.
*
* EXERCISE:
* Make starting windowed an option, and
* handle the resize events properly with
* glViewport.
*/
flags = SDL_OPENGL;
/*
* Set the video mode
*/
if( SDL_SetVideoMode( width, height, bpp, flags ) == 0 ) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf( stderr, "Video mode set failed: %s\n",
SDL_GetError( ) );
quit_tutorial( 1 );
}
/*
* At this point, we should have a properly setup
* double-buffered window for use with OpenGL.
*/
setup_opengl( width, height );
/*
* Now we want to begin our normal app process--
* an event loop with a lot of redrawing.
*/
while( 1 ) {
/* Process incoming events. */
process_events( );
/* Draw the screen. */
draw_screen( &model );
SDL_PumpEvents();
uint8_t * keys = SDL_GetKeyState(NULL);
game_time += 0.4;
float friction = (speed < 0.4) ? (speed < 0.2) ? 0.5 : 0.85 : 0.98;
speed *= friction;
if(keys[SDLK_w]){
speed += 0.13*(1-speed) + 0.1*speed;
}
if(keys[SDLK_a]){
angle += .1;
speed += 0.13*(1-speed) - 0.1*speed;
}
if(keys[SDLK_d]){
angle -= .1;
speed += 0.13*(1-speed) - 0.1*speed;
}
if(speed > 1) speed = 1;
}
/*
* EXERCISE:
* Record timings using SDL_GetTicks() and
* and print out frames per second at program
* end.
*/
/* Never reached. */
return 0;
}
