#include <stdlib.h>
#include <assert.h>
#include <GL/glew.h>
-#ifdef __APPLE__
-#include <GLUT/glut.h>
-#else
-#include <GL/glut.h>
-#endif
+#include <SDL2/SDL.h>
#include "app.h"
-#include "sdr.h"
-#include "shadow.h"
-#include "texture.h"
-#include "machine.h"
-#include "meshgen.h"
-#include "mparser.h"
-
-static bool init();
-static void cleanup();
-static void display();
-static void idle();
-static void draw_scene();
-static void draw_gears();
-static void reshape(int x, int y);
-static void keyb(unsigned char key, int x, int y);
-static void mouse(int bn, int st, int x, int y);
-static void motion(int x, int y);
-static void passive_motion(int x, int y);
-static Gear *pick_gear(int x, int y);
-
-static int win_width, win_height;
-
-static float cam_dist = 0.25;
-static float cam_theta, cam_phi = 20;
-static int prev_mx, prev_my;
-static bool bnstate[8];
-
-static Mat4 view_matrix;
-
-static unsigned int start_time, prev_msec;
-static Machine *machine;
-static Gear *hover_gear, *sel_gear;
-static HitPoint pick_hit;
-static Vec3 sel_hit_pos;
-
-static unsigned int sdr_shadow_notex;
-static int dbg_show_shadowmap;
-
-static TextureSet texman;
-static Texture *envmap;
-static Mesh *skydome;
-static unsigned int sdr_skydome;
+static bool init(int argc, char **argv);
+static void process_event(SDL_Event *ev);
+static void proc_modkeys();
+
+static SDL_Window *win;
+static SDL_GLContext ctx;
+static bool fullscreen, mouse_grabbed;
+static bool quit;
+
+static unsigned int start_time;
+static unsigned int modkeys;
+
+SDL_GameController *gamepad;
+
+static int scale_factor = 1;
int main(int argc, char **argv)
{
- glutInitWindowSize(1024, 768);
- glutInit(&argc, argv);
- glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | GLUT_MULTISAMPLE);
- glutCreateWindow("Antikythera");
-
- glutDisplayFunc(display);
- glutIdleFunc(idle);
- glutReshapeFunc(reshape);
- glutKeyboardFunc(keyb);
- glutMouseFunc(mouse);
- glutMotionFunc(motion);
- glutPassiveMotionFunc(passive_motion);
-
- if(!init()) {
+ if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0) {
+ fprintf(stderr, "failed to initialize SDL\n");
return 1;
}
- atexit(cleanup);
- glutMainLoop();
- return 0;
-}
+ SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
+ SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 8);
+ SDL_GL_SetAttribute(SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, 1);
-static bool init()
-{
- glewInit();
-
- glEnable(GL_MULTISAMPLE);
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
- glEnable(GL_NORMALIZE);
+ int defpos = SDL_WINDOWPOS_UNDEFINED;
+ unsigned int sdlflags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI;
- Mesh::use_custom_sdr_attr = false;
-
- machine = new Machine;
- if(!parse_machine(machine, "data/test.machine")) {
- fprintf(stderr, "failed to parse machine\n");
- return false;
+ if(!(win = SDL_CreateWindow("demo", defpos, defpos, 1024, 768, sdlflags))) {
+ // try again without sRGB capability
+ SDL_GL_SetAttribute(SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, 0);
+ if(!(win = SDL_CreateWindow("demo", defpos, defpos, 1024, 768, sdlflags))) {
+ fprintf(stderr, "failed to create window\n");
+ SDL_Quit();
+ return 1;
+ }
+ fprintf(stderr, "failed to get an sRGB framebuffer.\n");
}
-
- /*
- const float pitch = 10.0f;
-
- Gear *gear1 = new Gear;
- gear1->pos = Vec3(-50, 0, 0);
- gear1->set_teeth(16, pitch);
- gear1->gen_mesh();
- gear1->color = Vec3(0.35, 0.6, 0.8);
- machine->add_gear(gear1);
-
- Gear *gear2 = new Gear;
- gear2->set_teeth(32, pitch);
- gear2->pos = gear1->pos + Vec3(gear1->radius + gear2->radius - gear1->teeth_length * 0.75, 0, 0);
- gear2->thickness = 5;
- gear2->gen_mesh();
- machine->add_gear(gear2);
-
- Gear *gear3 = new Gear;
- gear3->set_teeth(8, pitch);
- gear3->pos = gear2->pos + Vec3(0, gear2->radius + gear3->radius - gear2->teeth_length * 0.75, 0);
- gear3->gen_mesh();
- machine->add_gear(gear3);
- gear3->color = Vec3(0.5, 0.8, 0.6);
-
- Gear *subgear = new Gear;
- subgear->set_teeth(10, pitch);
- subgear->pos = Vec3(0, 0, (gear2->thickness + subgear->thickness) / 2 + 1);
- subgear->gen_mesh();
- gear2->attach(subgear);
- machine->add_gear(subgear);
- subgear->color = Vec3(0.8, 0.7, 0.5);
- */
-
- //machine->add_motor(0, 1.0);
-
- // shadows
- init_shadow(2048);
-
- if(!(sdr_shadow_notex = create_program_load("sdr/shadow.v.glsl", "sdr/shadow-notex.p.glsl"))) {
- return false;
+ int val;
+ SDL_GL_GetAttribute(SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, &val);
+ printf("SDL says we %s an sRGB framebuffer\n", val ? "got" : "didn't get");
+ fb_srgb = val;
+
+ if(!(ctx = SDL_GL_CreateContext(win))) {
+ fprintf(stderr, "failed to create OpenGL context\n");
+ SDL_Quit();
+ return 1;
+ }
+ SDL_GL_GetDrawableSize(win, &win_width, &win_height);
+ win_aspect = (float)win_width / (float)win_height;
+
+ printf("detected %d joysticks\n", SDL_NumJoysticks());
+ for(int i=0; i<SDL_NumJoysticks(); i++) {
+ if(SDL_IsGameController(i)) {
+ if(!(gamepad = SDL_GameControllerOpen(i))) {
+ fprintf(stderr, "failed to open game controller %i: %s\n", i, SDL_GetError());
+ continue;
+ }
+ printf("Using gamepad: %s\n", SDL_GameControllerNameForIndex(i));
+ }
}
- set_uniform_int(sdr_shadow_notex, "shadowmap", 1);
- set_uniform_int(sdr_shadow_notex, "envmap", 2);
- float ambient[] = {0.1, 0.1, 0.1, 0.0};
- glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
+ if(!init(argc, argv)) {
+ SDL_Quit();
+ return 1;
+ }
+ app_reshape(win_width, win_height);
- // env
- envmap = texman.get_texture("data/stpeters_cross.jpg", TEX_CUBE);
+ while(!quit) {
+ SDL_Event ev;
- skydome = new Mesh;
- gen_sphere(skydome, 1.0, 16, 8);
- skydome->flip_faces();
+ time_msec = SDL_GetTicks() - start_time;
+ while(SDL_PollEvent(&ev)) {
+ process_event(&ev);
+ if(quit) goto break_evloop;
+ }
- if(!(sdr_skydome = create_program_load("sdr/skydome.v.glsl", "sdr/skydome.p.glsl"))) {
- return false;
+ app_display();
}
- glUseProgram(0);
+break_evloop:
- start_time = glutGet(GLUT_ELAPSED_TIME);
- return true;
+ app_cleanup();
+ SDL_Quit();
+ return 0;
}
-static void cleanup()
+void app_swap_buffers()
{
- texman.clear();
- delete machine;
+ SDL_GL_SwapWindow(win);
}
-static void update(float dt)
+void app_quit()
{
- texman.update();
-
- machine->update(dt);
-
- if(sel_gear) {
- }
-
- hover_gear = pick_gear(prev_mx, prev_my);
+ quit = true;
}
-static void set_light(int idx, const Vec3 &pos, const Vec3 &color)
+unsigned int app_get_modifiers()
{
- unsigned int lt = GL_LIGHT0 + idx;
- float posv[] = { pos.x, pos.y, pos.z, 1 };
- float colv[] = { color.x, color.y, color.z, 1 };
-
- glEnable(lt);
- glLightfv(lt, GL_POSITION, posv);
- glLightfv(lt, GL_DIFFUSE, colv);
- glLightfv(lt, GL_SPECULAR, colv);
+ return modkeys;
}
-static void display()
+void app_resize(int x, int y)
{
- unsigned int msec = glutGet(GLUT_ELAPSED_TIME) - start_time;
- float dt = (float)(msec - prev_msec) / 1000.0f;
- prev_msec = msec;
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- view_matrix = Mat4::identity;
- view_matrix.pre_translate(0, 0, -cam_dist);
- view_matrix.pre_rotate(deg_to_rad(cam_phi), 1, 0, 0);
- view_matrix.pre_rotate(deg_to_rad(cam_theta), 0, 1, 0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadMatrixf(view_matrix[0]);
-
- static const Vec3 lpos[] = { Vec3(-50, 75, 100), Vec3(100, 0, 30), Vec3(-10, -10, 60) };
- set_light(0, lpos[0], Vec3(1.0, 0.8, 0.7) * 0.8);
- set_light(1, lpos[1], Vec3(0.6, 0.7, 1.0) * 0.6);
- set_light(2, lpos[2], Vec3(0.8, 1.0, 0.8) * 0.3);
-
- update(dt);
-
- // shadowmap pass
- begin_shadow_pass(lpos[0], Vec3(0, 0, 0), 0.2, 100, 150);
- draw_scene();
- end_shadow_pass();
-
- // regular pass
- const Mat4 &shadow_matrix = get_shadow_matrix();
- Mat4 env_matrix = transpose(view_matrix.upper3x3());
- set_uniform_matrix4(sdr_shadow_notex, "envmap_matrix", env_matrix[0]);
-
- glActiveTexture(GL_TEXTURE1);
- glBindTexture(GL_TEXTURE_2D, get_shadow_tex());
- glMatrixMode(GL_TEXTURE);
- glLoadMatrixf(shadow_matrix[0]);
-
- glActiveTexture(GL_TEXTURE2);
- glBindTexture(GL_TEXTURE_CUBE_MAP, envmap->get_id());
-
- glActiveTexture(GL_TEXTURE0);
- glMatrixMode(GL_MODELVIEW);
-
- draw_scene();
-
- glMatrixMode(GL_TEXTURE);
- glLoadIdentity();
- glMatrixMode(GL_MODELVIEW);
-
-
- if(dbg_show_shadowmap) {
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
- glMatrixMode(GL_TEXTURE);
- glLoadIdentity();
-
- glPushAttrib(GL_ENABLE_BIT);
- glUseProgram(0);
- glBindTexture(GL_TEXTURE_2D, get_shadow_tex());
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_NONE);
- glEnable(GL_TEXTURE_2D);
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_LIGHTING);
- glDisable(GL_BLEND);
-
- glBegin(GL_QUADS);
- glColor4f(1, 1, 1, 1);
- glTexCoord2f(0, 0); glVertex2f(-0.95, -0.95);
- glTexCoord2f(1, 0); glVertex2f(-0.5, -0.95);
- glTexCoord2f(1, 1); glVertex2f(-0.5, -0.5);
- glTexCoord2f(0, 1); glVertex2f(-0.95, -0.5);
- glEnd();
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
- glBindTexture(GL_TEXTURE_2D, 0);
-
- glPopAttrib();
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
- }
-
-
- glutSwapBuffers();
- assert(glGetError() == GL_NO_ERROR);
+ SDL_SetWindowSize(win, x, y);
}
-static void idle()
+void app_fullscreen(bool fs)
{
- glutPostRedisplay();
+ SDL_SetWindowFullscreen(win, fs ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+ fullscreen = fs;
}
-static void draw_scene()
+void app_toggle_fullscreen()
{
- // draw skydome
- glDepthMask(0);
-
- Mat4 rot_view = view_matrix.upper3x3();
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadMatrixf(rot_view[0]);
-
- bind_texture(envmap, 0);
-
- glUseProgram(sdr_skydome);
- skydome->draw();
- glUseProgram(0);
-
- bind_texture(0, 0);
-
- glPopMatrix();
- glDepthMask(1);
-
- // draw mechanism
- draw_gears();
+ app_fullscreen(!fullscreen);
}
-static void draw_gears()
+bool app_is_fullscreen()
{
- /* world scale is in meters, gears are in millimeters, scale by 1/1000 */
- glPushMatrix();
- glScalef(0.001, 0.001, 0.001);
-
- if(!shadow_pass && (sel_gear || hover_gear)) {
- glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT | GL_POLYGON_BIT);
-
- glDisable(GL_LIGHTING);
- glFrontFace(GL_CW);
- glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
- glLineWidth(3.0);
-
- if(sel_gear) {
- glColor3f(0.2, 1.0, 0.3);
- sel_gear->draw();
- } else {
- glColor3f(1.0, 0.75, 0.2);
- hover_gear->draw();
- }
+ return fullscreen;
+}
- glPopAttrib();
+void app_grab_mouse(bool grab)
+{
+ if(grab) {
+ SDL_WarpMouseInWindow(win, win_width / 2, win_height / 2);
}
+ //SDL_SetWindowGrab(win, grab ? SDL_TRUE : SDL_FALSE);
+ //SDL_ShowCursor(grab ? 1 : 0);
+ SDL_SetRelativeMouseMode(grab ? SDL_TRUE : SDL_FALSE);
+ mouse_grabbed = grab;
+}
- glUseProgram(shadow_pass ? 0 : sdr_shadow_notex);
- machine->draw();
- glUseProgram(0);
+void app_toggle_grab_mouse()
+{
+ app_grab_mouse(!mouse_grabbed);
+}
- glPopMatrix();
+bool app_is_mouse_grabbed()
+{
+ return mouse_grabbed;
}
-static void reshape(int x, int y)
+
+static bool init(int argc, char **argv)
{
- win_width = x;
- win_height = y;
+ glewInit();
- glViewport(0, 0, x, y);
+ if(!app_init(argc, argv)) {
+ return false;
+ }
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(50.0, (float)x / (float)y, 0.01, 50.0);
+ start_time = SDL_GetTicks();
+ return true;
}
-static void keyb(unsigned char key, int x, int y)
+static void process_event(SDL_Event *ev)
{
- switch(key) {
- case 27:
- exit(0);
-
- case 'w':
- opt_gear_wireframe = !opt_gear_wireframe;
- glutPostRedisplay();
+ switch(ev->type) {
+ case SDL_QUIT:
+ quit = true;
break;
- case 's':
- dbg_show_shadowmap = !dbg_show_shadowmap;
- glutPostRedisplay();
+ case SDL_KEYDOWN:
+ case SDL_KEYUP:
+ proc_modkeys();
+ app_keyboard(ev->key.keysym.sym, ev->key.state == SDL_PRESSED);
break;
- }
-}
-static void mouse(int bn, int st, int x, int y)
-{
- int bidx = bn - GLUT_LEFT_BUTTON;
- bool down = st == GLUT_DOWN;
-
- prev_mx = x;
- prev_my = y;
- bnstate[bidx] = down;
+ case SDL_MOUSEBUTTONDOWN:
+ case SDL_MOUSEBUTTONUP:
+ proc_modkeys();
+ app_mouse_button(ev->button.button - SDL_BUTTON_LEFT, ev->button.state == SDL_PRESSED,
+ ev->button.x * scale_factor, ev->button.y * scale_factor);
+ break;
- if(bidx == 0) {
- if(down) {
- sel_gear = pick_gear(x, y);
- sel_hit_pos = pick_hit.pos;
+ case SDL_MOUSEMOTION:
+ if(mouse_grabbed) {
+ app_mouse_delta(ev->motion.xrel, ev->motion.yrel);
} else {
- sel_gear = 0;
+ app_mouse_motion(ev->motion.x * scale_factor, ev->motion.y * scale_factor);
}
- }
+ break;
- if(bidx == 3 || bidx == 4) { /* wheel */
- if(hover_gear) {
- float dz = bidx == 4 ? 1 : -1;
- hover_gear->set_position(hover_gear->get_position() + hover_gear->get_axis() * dz);
- machine->invalidate_meshing();
+ case SDL_WINDOWEVENT:
+ if(ev->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
+ SDL_GL_GetDrawableSize(win, &win_width, &win_height);
+ win_aspect = (float)win_width / (float)win_height;
+ scale_factor = win_width / ev->window.data1;
+ app_reshape(win_width, win_height);
}
- }
-}
-
-static void motion(int x, int y)
-{
- int dx = x - prev_mx;
- int dy = y - prev_my;
- prev_mx = x;
- prev_my = y;
-
- if(!dx && !dy) return;
-
- if(sel_gear) {
- float speed = 0.5;
- Vec3 offs = Vec3(dx * speed, -dy * speed, 0.0);
- offs = sel_gear->get_dir_matrix() * offs;
-
- sel_gear->set_position(sel_gear->get_position() + offs);
- machine->invalidate_meshing();
+ break;
- } else {
- if(bnstate[0]) {
- cam_theta += dx * 0.5;
- cam_phi += dy * 0.5;
+ case SDL_CONTROLLERAXISMOTION:
+ app_gamepad_axis(ev->caxis.axis, ev->caxis.value / 32768.0f);
+ break;
- if(cam_phi < -90) cam_phi = -90;
- if(cam_phi > 90) cam_phi = 90;
- glutPostRedisplay();
- }
- if(bnstate[2]) {
- cam_dist += dy * 0.01;
- if(cam_dist < 0.0) cam_dist = 0.0;
- glutPostRedisplay();
- }
+ case SDL_CONTROLLERBUTTONDOWN:
+ case SDL_CONTROLLERBUTTONUP:
+ app_gamepad_button(ev->cbutton.button, ev->type == SDL_CONTROLLERBUTTONDOWN);
+ break;
}
}
-static void passive_motion(int x, int y)
-{
- prev_mx = x;
- prev_my = y;
-}
-
-static Gear *pick_gear(int x, int y)
+static void proc_modkeys()
{
- double pt[3];
- double viewmat[16], projmat[16];
- int vp[4];
- Ray ray;
-
- y = win_height - y;
-
- glGetDoublev(GL_MODELVIEW_MATRIX, viewmat);
- glGetDoublev(GL_PROJECTION_MATRIX, projmat);
- glGetIntegerv(GL_VIEWPORT, vp);
-
- gluUnProject(x, y, 0, viewmat, projmat, vp, pt, pt + 1, pt + 2);
- ray.origin = Vec3(pt[0], pt[1], pt[2]) * 1000.0f;
-
- gluUnProject(x, y, 1, viewmat, projmat, vp, pt, pt + 1, pt + 2);
- ray.dir = Vec3(pt[0], pt[1], pt[2]) * 1000.0f - ray.origin;
-
- return machine->intersect_gear(ray, &pick_hit);
+ modkeys = 0;
+ SDL_Keymod sdlmod = SDL_GetModState();
+ if(sdlmod & KMOD_SHIFT) {
+ modkeys |= MOD_SHIFT;
+ }
+ if(sdlmod & KMOD_ALT) {
+ modkeys |= MOD_ALT;
+ }
+ if(sdlmod & KMOD_CTRL) {
+ modkeys |= MOD_CTRL;
+ }
}
projects / laserbrain_demo / blobdiff