reorganized the source code

[dosdemo] / src / greets.c

diff --git a/src/greets.c b/src/greets.c
deleted file mode 100644 (file)
index 8b128c6..0000000
--- a/src/greets.c
+++ /dev/null
@@ -1,184 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <assert.h>
-#include "demo.h"
-#include "3dgfx.h"
-#include "screen.h"
-#include "cfgopt.h"
-#include "imago2.h"
-#include "util.h"
-#include "gfxutil.h"
-#include "timer.h"
-#include "smoketxt.h"
-
-#ifdef MSDOS
-#include "dos/gfx.h"   /* for wait_vsync assembly macro */
-#else
-void wait_vsync(void);
-#endif
-
-#define BLUR_RAD       5
-
-
-static int init(void);
-static void destroy(void);
-static void start(long trans_time);
-static void draw(void);
-
-
-static struct screen scr = {
-       "greets",
-       init,
-       destroy,
-       start, 0,
-       draw
-};
-
-static long start_time;
-
-static struct smktxt *stx;
-
-static uint16_t *cur_smokebuf, *prev_smokebuf;
-static int smokebuf_size;
-#define smokebuf_start (cur_smokebuf < prev_smokebuf ? cur_smokebuf : prev_smokebuf)
-#define swap_smoke_buffers() \
-       do { \
-               uint16_t *tmp = cur_smokebuf; \
-               cur_smokebuf = prev_smokebuf; \
-               prev_smokebuf = tmp; \
-       } while(0)
-
-static float cam_theta, cam_phi = 25;
-static float cam_dist = 3;
-
-struct screen *greets_screen(void)
-{
-       return &scr;
-}
-
-
-static int init(void)
-{
-       if(!(stx = create_smktxt("data/greets1.png", "data/vfield1"))) {
-               return -1;
-       }
-
-       smokebuf_size = fb_width * fb_height * sizeof *cur_smokebuf;
-       if(!(cur_smokebuf = malloc(smokebuf_size * 2))) {
-               perror("failed to allocate smoke framebuffer");
-               return -1;
-       }
-       prev_smokebuf = cur_smokebuf + fb_width * fb_height;
-
-       return 0;
-}
-
-static void destroy(void)
-{
-       free(smokebuf_start);
-       destroy_smktxt(stx);
-}
-
-static void start(long trans_time)
-{
-       g3d_matrix_mode(G3D_PROJECTION);
-       g3d_load_identity();
-       g3d_perspective(50.0, 1.3333333, 0.5, 100.0);
-
-       memset(smokebuf_start, 0, smokebuf_size * 2);
-
-       start_time = time_msec;
-}
-
-static void update(void)
-{
-       static long prev_msec;
-       static int prev_mx, prev_my;
-       static unsigned int prev_bmask;
-
-       long msec = time_msec - start_time;
-       float dt = (msec - prev_msec) / 1000.0f;
-       prev_msec = msec;
-
-       if(mouse_bmask) {
-               if((mouse_bmask ^ prev_bmask) == 0) {
-                       int dx = mouse_x - prev_mx;
-                       int dy = mouse_y - prev_my;
-
-                       if(dx || dy) {
-                               if(mouse_bmask & 1) {
-                                       cam_theta += dx * 1.0;
-                                       cam_phi += dy * 1.0;
-
-                                       if(cam_phi < -90) cam_phi = -90;
-                                       if(cam_phi > 90) cam_phi = 90;
-                               }
-                               if(mouse_bmask & 4) {
-                                       cam_dist += dy * 0.5;
-
-                                       if(cam_dist < 0) cam_dist = 0;
-                               }
-                       }
-               }
-       }
-       prev_mx = mouse_x;
-       prev_my = mouse_y;
-       prev_bmask = mouse_bmask;
-
-       update_smktxt(stx, dt);
-}
-
-static void draw(void)
-{
-       int i, j;
-       uint16_t *dest, *src;
-       unsigned long msec;
-       static unsigned long last_swap;
-
-       update();
-
-       g3d_matrix_mode(G3D_MODELVIEW);
-       g3d_load_identity();
-       g3d_translate(0, 0, -cam_dist);
-       g3d_rotate(cam_phi, 1, 0, 0);
-       g3d_rotate(cam_theta, 0, 1, 0);
-       if(opt.sball) {
-               g3d_mult_matrix(sball_matrix);
-       }
-
-       memcpy(cur_smokebuf, prev_smokebuf, smokebuf_size);
-
-       g3d_framebuffer(fb_width, fb_height, cur_smokebuf);
-       draw_smktxt(stx);
-       g3d_framebuffer(fb_width, fb_height, fb_pixels);
-
-       dest = fb_pixels;
-       src = cur_smokebuf;
-       for(i=0; i<fb_height; i++) {
-               for(j=0; j<fb_width; j++) {
-                       unsigned int alpha = *src++;
-                       *dest++ = PACK_RGB16(alpha, alpha, alpha);
-               }
-       }
-
-       /*perf_start();*/
-       blur_grey_horiz(prev_smokebuf, cur_smokebuf, fb_width, fb_height, BLUR_RAD, 240);
-       /*
-       perf_end();
-       printf("blur perf: %lu\n", (unsigned long)perf_interval_count);
-       */
-       blur_grey_vert(cur_smokebuf, prev_smokebuf, fb_width, fb_height, BLUR_RAD, 240);
-       swap_smoke_buffers();
-
-       msec = get_msec();
-       if(msec - last_swap < 16) {
-               wait_vsync();
-       }
-       if(!opt.vsync) {
-               wait_vsync();
-       }
-       swap_buffers(fb_pixels);
-       last_swap = get_msec();
-}