mirror of https://github.com/BOINC/boinc.git
282 lines
7.4 KiB
C++
282 lines
7.4 KiB
C++
//
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// http://boinc.berkeley.edu
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// Copyright (C) 2012 University of California
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// Copyright (C) 2012 David Coss, PhD
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// Example graphics application that simply rotates images, like
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// a slide show. Images must be located in the subdirectory
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// "slide_show_images". However, they may be shipped as a zip file,
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// "slide_show_images.zip", which will be extracted if the images
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// directory does not exist.
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#ifdef _WIN32
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#include "boinc_win.h"
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#else
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#include <math.h>
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#endif
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#include "parse.h"
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#include "util.h"
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#include "gutil.h"
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#include "boinc_gl.h"
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#include "app_ipc.h"
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#include "boinc_api.h"
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#include "graphics2.h"
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#include "uc2.h"
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#include "diagnostics.h"
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#include "filesys.h"
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#include "boinc_zip.h"
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#ifdef __APPLE__
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#include "mac/app_icon.h"
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#endif
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float white[4] = {1., 1., 1., 1.};
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TEXTURE_DESC logo;
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int width, height; // window dimensions
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APP_INIT_DATA uc_aid;
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bool mouse_down = false;
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int mouse_x, mouse_y;
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double pitch_angle, roll_angle, viewpoint_distance=10;
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float color[4] = {.7, .2, .5, 1};
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// the color of the 3D object.
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// Can be changed using preferences
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UC_SHMEM* shmem = NULL;
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using std::string;
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using std::vector;
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std::vector<std::string> image_paths;
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size_t curr_image_idx;
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int timer_counter = 0;
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std::string images_dir = "slide_show_images";
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std::string zip_filename = "slide_show_images.zip";
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// Image path functions
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int populate_image_list() {
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DIRREF dir;
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char path[MAXPATHLEN];
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std::string dirent_name,physical_path;
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boinc_resolve_filename(images_dir.c_str(),path,MAXPATHLEN);
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if (!boinc_file_exists(path)) {
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printf("missing directory '%s'\n",path);
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boinc_resolve_filename(zip_filename.c_str(),path,MAXPATHLEN);
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if (boinc_file_exists(path)) {
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char new_dir_path[MAXPATHLEN];
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boinc_resolve_filename(images_dir.c_str(),new_dir_path,MAXPATHLEN);
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printf("zipfile exists '%s'\n",path);
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boinc_zip(UNZIP_IT,path, ".");
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}
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}
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if ((dir = dir_open(images_dir.c_str())) == NULL) {
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fprintf(stderr,
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"Could not open images directory '%s'.\n",
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images_dir.c_str()
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);
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if(errno) fprintf(stderr,"Reason (%d): %s",errno,strerror(errno));
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return -1;
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}
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while (dir_scan(path,dir,MAXPATHLEN) == 0) {
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dirent_name = path;
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#ifdef _WIN32
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dirent_name = images_dir + "\\" + dirent_name;
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#else
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dirent_name = images_dir + "/" + dirent_name;
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#endif
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boinc_resolve_filename_s(dirent_name.c_str(), physical_path);
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printf("%s => %s\n", dirent_name.c_str(), physical_path.c_str());
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image_paths.push_back(physical_path);
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}
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dir_close(dir);
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curr_image_idx = 0;
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return 0;
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}
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void load_next_image() {
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// If there are no images, leave immediately.
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//
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if (image_paths.size() == 0) return;
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// If we have moved past the end of the path list,
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// reset counter.
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if (curr_image_idx >= image_paths.size()) {
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curr_image_idx = 0;
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}
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logo.load_image_file(image_paths[curr_image_idx++].c_str());
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}
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void timer_image_rotate() {
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timer_counter++;
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if(timer_counter >= 100) {
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load_next_image();
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timer_counter = 0;
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}
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}
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// set up lighting model
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//
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static void init_lights() {
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GLfloat ambient[] = {1., 1., 1., 1.0};
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GLfloat position[] = {-13.0, 6.0, 20.0, 1.0};
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GLfloat dir[] = {-1, -.5, -3, 1.0};
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glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
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glLightfv(GL_LIGHT0, GL_POSITION, position);
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glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, dir);
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}
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static void draw_logo() {
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if (logo.present) {
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float pos[3] = {.2, .3, 0};
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float size[3] = {.6, .4, 0};
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logo.draw(pos, size, ALIGN_CENTER, ALIGN_CENTER);
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}
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}
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void set_viewpoint(double dist) {
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double x, y, z;
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x = 0;
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y = 3.0*dist;
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z = 11.0*dist;
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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gluLookAt(
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x, y, z, // eye position
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0,-.8,0, // where we're looking
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0.0, 1.0, 0. // up is in positive Y direction
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);
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glRotated(pitch_angle, 1., 0., 0);
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glRotated(roll_angle, 0., 1., 0);
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}
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static void init_camera(double dist) {
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(
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45.0, // field of view in degree
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1.0, // aspect ratio
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1.0, // Z near clip
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1000.0 // Z far
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);
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set_viewpoint(dist);
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}
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void app_graphics_render(int xs, int ys, double time_of_day) {
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// boinc_graphics_get_shmem() must be called after
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// boinc_parse_init_data_file()
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// Put this in the main loop to allow retries if the
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// worker application has not yet created shared memory
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//
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if (shmem == NULL) {
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shmem = (UC_SHMEM*)boinc_graphics_get_shmem("uppercase");
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}
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if (shmem) {
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shmem->countdown = 5;
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}
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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// draw logo first - it's in background
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//
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mode_unshaded();
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mode_ortho();
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draw_logo();
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ortho_done();
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timer_image_rotate();
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}
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void app_graphics_resize(int w, int h){
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width = w;
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height = h;
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glViewport(0, 0, w, h);
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}
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// mouse drag w/ left button rotates 3D objects;
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// mouse draw w/ right button zooms 3D objects
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//
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void boinc_app_mouse_move(int x, int y, int left, int middle, int right) {
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}
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void boinc_app_mouse_button(int x, int y, int which, int is_down) {
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}
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void boinc_app_key_press(int, int){}
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void boinc_app_key_release(int, int){}
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void app_graphics_init() {
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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populate_image_list();
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load_next_image();
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init_lights();
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}
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static void parse_project_prefs(char* buf) {
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char cs[256];
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COLOR c;
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double hue;
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double max_frames_sec, max_gfx_cpu_pct;
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if (!buf) return;
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if (parse_str(buf, "<color_scheme>", cs, 256)) {
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if (!strcmp(cs, "Tahiti Sunset")) {
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hue = .9;
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} else if (!strcmp(cs, "Desert Sands")) {
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hue = .1;
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} else {
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hue = .5;
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}
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HLStoRGB(hue, .5, .5, c);
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color[0] = c.r;
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color[1] = c.g;
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color[2] = c.b;
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color[3] = 1;
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}
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if (parse_double(buf, "<max_frames_sec>", max_frames_sec)) {
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boinc_max_fps = max_frames_sec;
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}
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if (parse_double(buf, "<max_gfx_cpu_pct>", max_gfx_cpu_pct)) {
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boinc_max_gfx_cpu_frac = max_gfx_cpu_pct/100;
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}
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}
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int main(int argc, char** argv) {
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boinc_init_graphics_diagnostics(BOINC_DIAG_DEFAULTS);
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#ifdef __APPLE__
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setMacIcon(argv[0], MacAppIconData, sizeof(MacAppIconData));
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#endif
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boinc_parse_init_data_file();
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boinc_get_init_data(uc_aid);
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if (uc_aid.project_preferences) {
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parse_project_prefs(uc_aid.project_preferences);
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}
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boinc_register_timer_callback(timer_image_rotate);
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boinc_graphics_loop(argc, argv);
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boinc_finish_diag();
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}
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