--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <assert.h>
+#include "miniglut.h"
+#include "demo.h"
+#include "gfx.h"
+#include "gfxutil.h"
+#include "timer.h"
+#include "audio.h"
+#include "cfgopt.h"
+#include "cgmath/cgmath.h"
+#include "util.h"
+
+static void display(void);
+static void idle(void);
+static void reshape(int x, int y);
+static void keydown(unsigned char key, int x, int y);
+static void keyup(unsigned char key, int x, int y);
+static void skeydown(int key, int x, int y);
+static void skeyup(int key, int x, int y);
+static int translate_special(int skey);
+static void mouse_button(int bn, int st, int x, int y);
+static void mouse_motion(int x, int y);
+static void sball_motion(int x, int y, int z);
+static void sball_rotate(int x, int y, int z);
+static void sball_button(int bn, int st);
+static void recalc_sball_matrix(float *xform);
+static unsigned int next_pow2(unsigned int x);
+static void set_fullscreen(int fs);
+static void set_vsync(int vsync);
+
+int have_joy;
+unsigned int joy_bnstate, joy_bndiff, joy_bnpress;
+
+#define MODE(w, h) \
+ {0, w, h, 16, w * 2, 5, 6, 5, 11, 5, 0, 0xf800, 0x7e0, 0x1f, 0xbadf00d, 2, 0}
+static struct video_mode vmodes[] = {
+ MODE(320, 240), MODE(400, 300), MODE(512, 384), MODE(640, 480),
+ MODE(800, 600), MODE(1024, 768), MODE(1280, 960), MODE(1280, 1024),
+ MODE(1920, 1080), MODE(1600, 1200), MODE(1920, 1200)
+};
+static struct video_mode *cur_vmode;
+
+static unsigned int num_pressed;
+static unsigned char keystate[256];
+
+static unsigned long start_time;
+static unsigned int modkeys;
+
+static int win_width, win_height;
+static float win_aspect;
+static unsigned int tex;
+
+#ifdef __unix__
+#include <GL/glx.h>
+static Display *xdpy;
+static Window xwin;
+
+static void (*glx_swap_interval_ext)();
+static void (*glx_swap_interval_sgi)();
+#endif
+#ifdef _WIN32
+#include <windows.h>
+static PROC wgl_swap_interval_ext;
+#endif
+
+static int use_sball;
+static cgm_vec3 pos = {0, 0, 0};
+static cgm_quat rot = {0, 0, 0, 1};
+
+
+int main(int argc, char **argv)
+{
+ glutInit(&argc, argv);
+ glutInitWindowSize(800, 600);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+ glutCreateWindow("Mindlapse");
+
+ glutDisplayFunc(display);
+ glutIdleFunc(idle);
+ glutReshapeFunc(reshape);
+ glutKeyboardFunc(keydown);
+ glutKeyboardUpFunc(keyup);
+ glutSpecialFunc(skeydown);
+ glutSpecialUpFunc(skeyup);
+ glutMouseFunc(mouse_button);
+ glutMotionFunc(mouse_motion);
+ glutPassiveMotionFunc(mouse_motion);
+ glutSpaceballMotionFunc(sball_motion);
+ glutSpaceballRotateFunc(sball_rotate);
+ glutSpaceballButtonFunc(sball_button);
+
+ glutSetCursor(GLUT_CURSOR_NONE);
+
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_CULL_FACE);
+
+
+ if(!set_video_mode(match_video_mode(FB_WIDTH, FB_HEIGHT, FB_BPP), 1)) {
+ return 1;
+ }
+
+#ifdef __unix__
+ xdpy = glXGetCurrentDisplay();
+ xwin = glXGetCurrentDrawable();
+
+ if(!(glx_swap_interval_ext = glXGetProcAddress((unsigned char*)"glXSwapIntervalEXT"))) {
+ glx_swap_interval_sgi = glXGetProcAddress((unsigned char*)"glXSwapIntervalSGI");
+ }
+#endif
+#ifdef _WIN32
+ wgl_swap_interval_ext = wglGetProcAddress("wglSwapIntervalEXT");
+#endif
+
+ if(au_init() == -1) {
+ return 1;
+ }
+ time_msec = 0;
+ if(demo_init(argc, argv) == -1) {
+ return 1;
+ }
+ atexit(demo_cleanup);
+
+ if(opt.fullscreen) {
+ set_fullscreen(opt.fullscreen);
+ }
+
+ reset_timer();
+
+ glutMainLoop();
+ return 0;
+}
+
+void demo_quit(void)
+{
+ exit(0);
+}
+
+struct video_mode *video_modes(void)
+{
+ return vmodes;
+}
+
+int num_video_modes(void)
+{
+ return sizeof vmodes / sizeof *vmodes;
+}
+
+struct video_mode *get_video_mode(int idx)
+{
+ if(idx == VMODE_CURRENT) {
+ return cur_vmode;
+ }
+ return vmodes + idx;
+}
+
+int match_video_mode(int xsz, int ysz, int bpp)
+{
+ struct video_mode *vm = vmodes;
+ int i, count = num_video_modes();
+
+ for(i=0; i<count; i++) {
+ if(vm->xsz == xsz && vm->ysz == ysz && vm->bpp == bpp) {
+ return i;
+ }
+ vm++;
+ }
+ return -1;
+}
+
+static int tex_xsz, tex_ysz;
+static uint32_t *convbuf;
+static int convbuf_size;
+
+void *set_video_mode(int idx, int nbuf)
+{
+ struct video_mode *vm = vmodes + idx;
+
+ if(cur_vmode == vm) {
+ return vmem;
+ }
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+
+ tex_xsz = next_pow2(vm->xsz);
+ tex_ysz = next_pow2(vm->ysz);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_xsz, tex_ysz, 0, GL_RGBA,
+ GL_UNSIGNED_BYTE, 0);
+ if(opt.scaler == SCALER_LINEAR) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ } else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ }
+
+ glMatrixMode(GL_TEXTURE);
+ glLoadIdentity();
+ glScalef((float)vm->xsz / tex_xsz, (float)vm->ysz / tex_ysz, 1);
+
+ if(vm->xsz * vm->ysz > convbuf_size) {
+ convbuf_size = vm->xsz * vm->ysz;
+ free(convbuf);
+ convbuf = malloc(convbuf_size * sizeof *convbuf);
+ }
+
+ if(demo_resizefb(vm->xsz, vm->ysz, vm->bpp) == -1) {
+ fprintf(stderr, "failed to allocate virtual framebuffer\n");
+ return 0;
+ }
+ vmem = fb_pixels;
+
+ cur_vmode = vm;
+ return vmem;
+}
+
+void wait_vsync(void)
+{
+}
+
+void blit_frame(void *pixels, int vsync)
+{
+ int i;
+ uint32_t *dptr = convbuf;
+ uint16_t *sptr = pixels;
+ static int prev_vsync = -1;
+
+ if(vsync != prev_vsync) {
+ set_vsync(vsync);
+ prev_vsync = vsync;
+ }
+
+ for(i=0; i<FB_WIDTH * FB_HEIGHT; i++) {
+ int r = UNPACK_R16(*sptr);
+ int g = UNPACK_G16(*sptr);
+ int b = UNPACK_B16(*sptr);
+ *dptr++ = PACK_RGB32(b, g, r);
+ sptr++;
+ }
+
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, FB_WIDTH, FB_HEIGHT, GL_RGBA,
+ GL_UNSIGNED_BYTE, convbuf);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ if(win_aspect >= FB_ASPECT) {
+ glScalef(FB_ASPECT / win_aspect, 1, 1);
+ } else {
+ glScalef(1, win_aspect / FB_ASPECT, 1);
+ }
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 1);
+ glVertex2f(-1, -1);
+ glTexCoord2f(1, 1);
+ glVertex2f(1, -1);
+ glTexCoord2f(1, 0);
+ glVertex2f(1, 1);
+ glTexCoord2f(0, 0);
+ glVertex2f(-1, 1);
+ glEnd();
+
+ glutSwapBuffers();
+ assert(glGetError() == GL_NO_ERROR);
+}
+
+int kb_isdown(int key)
+{
+ switch(key) {
+ case KB_ANY:
+ return num_pressed;
+
+ case KB_ALT:
+ return keystate[KB_LALT] + keystate[KB_RALT];
+
+ case KB_CTRL:
+ return keystate[KB_LCTRL] + keystate[KB_RCTRL];
+ }
+
+ if(isalpha(key)) {
+ key = tolower(key);
+ }
+ return keystate[key];
+}
+
+/* timer */
+void init_timer(int res_hz)
+{
+}
+
+void reset_timer(void)
+{
+ start_time = glutGet(GLUT_ELAPSED_TIME);
+}
+
+unsigned long get_msec(void)
+{
+ return glutGet(GLUT_ELAPSED_TIME) - start_time;
+}
+
+#ifdef _WIN32
+#include <windows.h>
+
+void sleep_msec(unsigned long msec)
+{
+ Sleep(msec);
+}
+
+#else
+#include <unistd.h>
+
+void sleep_msec(unsigned long msec)
+{
+ usleep(msec * 1000);
+}
+#endif
+
+static void display(void)
+{
+ recalc_sball_matrix(sball_matrix);
+
+ time_msec = get_msec();
+ demo_draw();
+}
+
+static void idle(void)
+{
+ glutPostRedisplay();
+}
+
+static void reshape(int x, int y)
+{
+ win_width = x;
+ win_height = y;
+ win_aspect = (float)x / (float)y;
+ glViewport(0, 0, x, y);
+}
+
+static void keydown(unsigned char key, int x, int y)
+{
+ modkeys = glutGetModifiers();
+
+ if((key == '\n' || key == '\r') && (modkeys & GLUT_ACTIVE_ALT)) {
+ opt.fullscreen ^= 1;
+ set_fullscreen(opt.fullscreen);
+ return;
+ }
+ keystate[key] = 1;
+ demo_keyboard(key, 1);
+}
+
+static void keyup(unsigned char key, int x, int y)
+{
+ keystate[key] = 0;
+ demo_keyboard(key, 0);
+}
+
+static void skeydown(int key, int x, int y)
+{
+ if(key == GLUT_KEY_F5) {
+ opt.scaler = (opt.scaler + 1) % NUM_SCALERS;
+
+ if(opt.scaler == SCALER_LINEAR) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ } else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ }
+ }
+ key = translate_special(key);
+ keystate[key] = 1;
+ demo_keyboard(key, 1);
+}
+
+static void skeyup(int key, int x, int y)
+{
+ key = translate_special(key);
+ keystate[key] = 0;
+ demo_keyboard(key, 0);
+}
+
+static int translate_special(int skey)
+{
+ switch(skey) {
+ case 127:
+ return 127;
+ case GLUT_KEY_LEFT:
+ return KB_LEFT;
+ case GLUT_KEY_RIGHT:
+ return KB_RIGHT;
+ case GLUT_KEY_UP:
+ return KB_UP;
+ case GLUT_KEY_DOWN:
+ return KB_DOWN;
+ case GLUT_KEY_PAGE_UP:
+ return KB_PGUP;
+ case GLUT_KEY_PAGE_DOWN:
+ return KB_PGDN;
+ case GLUT_KEY_HOME:
+ return KB_HOME;
+ case GLUT_KEY_END:
+ return KB_END;
+ default:
+ if(skey >= GLUT_KEY_F1 && skey <= GLUT_KEY_F12) {
+ return KB_F1 + skey - GLUT_KEY_F1;
+ }
+ }
+ return 0;
+}
+
+static void map_mouse_pos(int *xp, int *yp)
+{
+ int x = *xp;
+ int y = *yp;
+
+ /* TODO */
+ *xp = x * FB_WIDTH / win_width;
+ *yp = y * FB_HEIGHT / win_height;
+}
+
+static void mouse_button(int bn, int st, int x, int y)
+{
+ map_mouse_pos(&x, &y);
+ mouse_x = x;
+ mouse_y = y;
+
+ if(st == GLUT_DOWN) {
+ mouse_bmask |= 1 << bn;
+ } else {
+ mouse_bmask &= ~(1 << bn);
+ }
+}
+
+static void mouse_motion(int x, int y)
+{
+ map_mouse_pos(&x, &y);
+ mouse_x = x;
+ mouse_y = y;
+}
+
+static void sball_motion(int x, int y, int z)
+{
+ pos.x += x * 0.001f;
+ pos.y += y * 0.001f;
+ pos.z -= z * 0.001f;
+
+}
+
+static void sball_rotate(int rx, int ry, int rz)
+{
+ if(rx | ry | rz) {
+ float s = (float)rsqrt(rx * rx + ry * ry + rz * rz);
+ cgm_qrotate(&rot, 0.001f / s, rx * s, ry * s, -rz * s);
+ }
+}
+
+static void sball_button(int bn, int st)
+{
+ pos.x = pos.y = pos.z = 0;
+ rot.x = rot.y = rot.z = 0;
+ rot.w = 1;
+}
+
+static void recalc_sball_matrix(float *xform)
+{
+ cgm_mrotation_quat(xform, &rot);
+ xform[12] = pos.x;
+ xform[13] = pos.y;
+ xform[14] = pos.z;
+}
+
+
+static unsigned int next_pow2(unsigned int x)
+{
+ x--;
+ x |= x >> 1;
+ x |= x >> 2;
+ x |= x >> 4;
+ x |= x >> 8;
+ x |= x >> 16;
+ return x + 1;
+}
+
+static void set_fullscreen(int fs)
+{
+ static int win_x, win_y;
+
+ if(fs) {
+ win_x = glutGet(GLUT_WINDOW_WIDTH);
+ win_y = glutGet(GLUT_WINDOW_HEIGHT);
+ glutFullScreen();
+ } else {
+ glutReshapeWindow(win_x, win_y);
+ }
+}
+
+#ifdef __unix__
+static void set_vsync(int vsync)
+{
+ vsync = vsync ? 1 : 0;
+ if(glx_swap_interval_ext) {
+ glx_swap_interval_ext(xdpy, xwin, vsync);
+ } else if(glx_swap_interval_sgi) {
+ glx_swap_interval_sgi(vsync);
+ }
+}
+#endif
+#ifdef WIN32
+static void set_vsync(int vsync)
+{
+ if(wgl_swap_interval_ext) {
+ wgl_swap_interval_ext(vsync ? 1 : 0);
+ }
+}
+#endif
projects / dosdemo / blobdiff