int cursor_motion(viewport_t *viewport)
{
if(viewport->button_down)
{
if(viewport->which_button == 1)
{
viewport->zoom = viewport->zoom_start + (float)(viewport->cursor_y - viewport->last_y) / 8;
}
else
{
viewport->xrot = viewport->xrot_start + (float)(viewport->cursor_x - viewport->last_x);
viewport->yrot = viewport->yrot_start + (float)(viewport->cursor_y - viewport->last_y);
}
viewport_draw(viewport);
return 1;
}
};
int main()
{
viewport_t *viewport;
int last_x, last_y;
pthread_attr_t attr;
pthread_t tid;
int i;
GLfloat ratio;
static GLfloat light_position[] = { 5.0, 5.0, 10.0, 0.0 };
static GLfloat diffuse_light[] = { 1.0, 1.0, 1.0, 1.0 };
//printf("main 1\n");
viewport = new_viewport(1280, 1024);
//printf("main 2\n");
viewport->xrot = 20.0;
viewport->yrot = 30.0;
viewport->zoom = -40.0;
//#if UNFINISHED
// Initialize OpenGL
// From the reshape event handler
glViewport(0, 0, viewport->w, viewport->h);
//printf("main 2\n");
glMatrixMode(GL_PROJECTION);
//printf("main 2\n");
glLoadIdentity();
//printf("main 2\n");
ratio = (GLfloat)viewport->h / (GLfloat)viewport->w;
//printf("main 2\n");
glFrustum(-1.0,
1.0,
-ratio,
ratio,
5.0,
600.0);
//printf("main 2\n");
glMatrixMode(GL_MODELVIEW);
//printf("main 2\n");
glLoadIdentity();
//printf("main 2\n");
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse_light);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glDepthMask(GL_FALSE);
//printf("main 2\n");
// Initialize texture
//#if 0
{
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
png_infop info_ptr = png_create_info_struct(png_ptr);
FILE *fd = fopen(TEXTURE_FILE, "rb");
int w;
int h;
int color_model;
unsigned char **row_pointers;
unsigned char *data;
if(!fd)
{
printf("Couldn't open %s.\n", TEXTURE_FILE);
exit(1);
}
png_init_io(png_ptr, fd);
png_read_info(png_ptr, info_ptr);
w = png_get_image_width(png_ptr, info_ptr);
h = png_get_image_height(png_ptr, info_ptr);
color_model = png_get_color_type(png_ptr, info_ptr);
row_pointers = (unsigned char**)calloc(1, sizeof(png_bytep) * h);
data = (unsigned char*)calloc(1, w * h * 3);
for(i = 0; i < h; i++) row_pointers[i] = data + w * 3 * i;
png_read_image(png_ptr, row_pointers);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glGenTextures(1, &viewport->texName);
glBindTexture(GL_TEXTURE_2D, viewport->texName);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glTexImage2D(GL_TEXTURE_2D,
0,
GL_RGB,
w,
h,
0,
GL_RGB,
GL_UNSIGNED_BYTE,
row_pointers[0]);
//printf("main 3\n");
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
free(row_pointers);
free(data);
fclose(fd);
}
//printf("main 4\n");
//#endif // 0
// Initialize status
init_status(&viewport->status);
pthread_attr_init(&attr);
pthread_create(&tid, &attr, viewport_loop, viewport);
// pthread_create(&tid, &attr, texture_loop, viewport);
while(!viewport->done)
{
//printf("main 5\n");
viewport_draw(viewport);
// SDL_ScanFrameBuffer(viewport->screen);
//printf("main 6 press a key\n");
//getc(stdin);
//exit(0);
}
//#endif // UNFINISHED
//printf("main 8\n");
return 0;
}
int main()
{
viewport_t *viewport;
int last_x, last_y;
pthread_attr_t attr;
pthread_t tid;
int i;
GLfloat ratio;
static GLfloat light_position[] = { 5.0, 5.0, 10.0, 0.0 };
static GLfloat diffuse_light[] = { 1.0, 1.0, 1.0, 1.0 };
//printf("main 1\n");
viewport = new_viewport(1280, 1024);
//printf("main 2\n");
viewport->xrot = 20.0;
viewport->yrot = 30.0;
viewport->zoom = -40.0;
viewport->x1 = 0;
viewport->y1 = 0;
viewport->y2 = TEXTURE_SIDE;
viewport->x2 = TEXTURE_SIDE;
viewport->tex_x1 = 0;
viewport->tex_y1 = 0;
viewport->tex_x2 = 1;
viewport->tex_y2 = 1;
//#if UNFINISHED
// Initialize OpenGL
// From the reshape event handler
glViewport(0, 0, viewport->w, viewport->h);
//printf("main 2\n");
glMatrixMode(GL_PROJECTION);
//printf("main 2\n");
glLoadIdentity();
//printf("main 2\n");
ratio = (GLfloat)viewport->h / (GLfloat)viewport->w;
//printf("main 2\n");
glFrustum(-1.0,
1.0,
-ratio,
ratio,
5.0,
600.0);
//printf("main 2\n");
glMatrixMode(GL_MODELVIEW);
//printf("main 2\n");
glLoadIdentity();
//printf("main 2\n");
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHT0);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse_light);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glEnable(GL_LIGHTING);
// glShadeModel(GL_SMOOTH);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
// glDepthMask(GL_FALSE);
//printf("main 2\n");
// Initialize movie
{
unsigned char **row_pointers;
int j, w, h;
viewport->frame_size = TEXTURE_SIDE * TEXTURE_SIDE * 4;
viewport->total_frames = TOTAL_FRAMES;
viewport->movie_data = calloc(1,
TEXTURE_SIDE * TEXTURE_SIDE * 4);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
for(i = 0; i < TEXTURE_COUNT; i++)
{
glGenTextures(1, &viewport->texture[i]);
glBindTexture(GL_TEXTURE_2D, viewport->texture[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glTexImage2D(GL_TEXTURE_2D,
0,
GL_RGB,
TEXTURE_SIDE,
TEXTURE_SIDE,
0,
GL_RGB,
GL_UNSIGNED_BYTE,
viewport->movie_data);
}
//printf("main 3\n");
}
viewport->current_frame = 0;
viewport->frame_step = 1;
//printf("main 4\n");
//#endif // 0
// Initialize status
init_status(&viewport->status);
viewport_draw(viewport);
pthread_attr_init(&attr);
pthread_create(&tid, &attr, viewport_loop, viewport);
pthread_join(tid, 0);
//#endif // UNFINISHED
//printf("main 8\n");
return 0;
}
int keypress_event(viewport_t *viewport)
{
int mod = viewport->key_pressed.mod;
// printf("Key pressed: sym=%x mod=%x\n", viewport->key_pressed.sym, viewport->key_pressed.mod);
switch(viewport->key_pressed.sym)
{
case 'y':
if(mod & KMOD_SHIFT)
viewport->y -= 8;
else
viewport->y += 8;
break;
case 'u':
if(mod & KMOD_SHIFT)
viewport->u -= 8;
else
viewport->u += 8;
break;
case 'v':
if(mod & KMOD_SHIFT)
viewport->v -= 8;
else
viewport->v += 8;
break;
case SDLK_LEFT:
if(mod & KMOD_SHIFT)
viewport->x2 -= 8;
else
if(mod & KMOD_CTRL)
viewport->tex_x1 -= 0.1;
else
if(mod & KMOD_ALT)
viewport->tex_x2 -= 0.1;
else
viewport->x1 -= 8;
break;
case SDLK_RIGHT:
if(mod & KMOD_SHIFT)
viewport->x2 += 8;
else
if(mod & KMOD_CTRL)
viewport->tex_x1 += 0.1;
else
if(mod & KMOD_ALT)
viewport->tex_x2 += 0.1;
else
viewport->x1 += 8;
break;
case SDLK_UP:
if(mod & KMOD_SHIFT)
viewport->y2 -= 8;
else
if(mod & KMOD_CTRL)
viewport->tex_y1 -= 0.1;
else
if(mod & KMOD_ALT)
viewport->tex_y2 -= 0.1;
else
viewport->y1 -= 8;
break;
case SDLK_DOWN:
if(mod & KMOD_SHIFT)
viewport->y2 += 8;
else
if(mod & KMOD_CTRL)
viewport->tex_y1 += 0.1;
else
if(mod & KMOD_ALT)
viewport->tex_y2 += 0.1;
else
viewport->y1 += 8;
break;
case 0x1b:
stop_status();
viewport_set_done(viewport);
break;
}
printf("x1=%x y1=%x x2=%x y2=%x y=%x u=%x v=%x \n",
viewport->x1, viewport->y1, viewport->x2, viewport->y2, viewport->y, viewport->u, viewport->v);
viewport_draw(viewport);
return 1;
};
