reorganized the source code

[dosdemo] / src / plasma.c

diff --git a/src/plasma.c b/src/plasma.c
deleted file mode 100644 (file)
index 5caf4f4..0000000
--- a/src/plasma.c
+++ /dev/null
@@ -1,111 +0,0 @@
-// Just a test with a run of the mill plasma
-
-#include <stdlib.h>
-#include <math.h>
-
-#include "demo.h"
-#include "screen.h"
-
-static int init(void);
-static void destroy(void);
-static void start(long trans_time);
-static void draw(void);
-
-static struct screen scr = {
-       "plasma",
-       init,
-       destroy,
-       start,
-       0,
-       draw
-};
-
-static unsigned long startingTime;
-
-#define PSIN_SIZE 4096
-#define PPAL_SIZE 256
-
-static unsigned char *psin1, *psin2, *psin3;
-static unsigned short *plasmaPal;
-
-static unsigned short myBuffer[320 * 240];
-
-
-struct screen *plasma_screen(void)
-{
-       return &scr;
-}
-
-static int init(void)
-{
-       int i;
-
-       psin1 = (unsigned char*)malloc(sizeof(unsigned char) * PSIN_SIZE);
-       psin2 = (unsigned char*)malloc(sizeof(unsigned char) * PSIN_SIZE);
-       psin3 = (unsigned char*)malloc(sizeof(unsigned char) * PSIN_SIZE);
-
-       for (i = 0; i < PSIN_SIZE; i++)
-       {
-               psin1[i] = (unsigned char)(sin((double)i / 45.0) * 63.0 + 63.0);
-               psin2[i] = (unsigned char)(sin((double)i / 75.0) * 42.0 + 42.0);
-               psin3[i] = (unsigned char)(sin((double)i / 32.0) * 88.0 + 88.0);
-       }
-
-       plasmaPal = (unsigned short*)malloc(sizeof(unsigned short) * PPAL_SIZE);
-       for (i=0; i<PPAL_SIZE; i++)
-       {
-               int r, g, b;
-               int c = i;
-               if (c > 127) c = 255 - c;
-               c >>= 2;
-               g = 31 - c;
-               r = c;
-               b = g;
-               plasmaPal[i] = (r<<11) | (g<<5) | b;
-       }
-
-       return 0;
-}
-
-static void destroy(void)
-{
-       free(psin1);
-       free(psin2);
-       free(psin3);
-}
-
-static void start(long trans_time)
-{
-       startingTime = time_msec;
-}
-
-static void draw(void)
-{
-       int x, y;
-       unsigned char c;
-       unsigned char s1, s2;
-
-       float dt = (float)(time_msec - startingTime) / 1000.0f;
-       int t1 = sin(0.1f * dt) * 132 + 132;
-       int t2 = sin(0.2f * dt) * 248 + 248;
-       int t3 = sin(0.5f * dt) * 380 + 380;
-
-       unsigned int *vram32 = (unsigned int*)fb_pixels;
-       unsigned int p0, p1;
-       for (y = 0; y < fb_height; y++)
-       {
-               s1 = psin2[y + t2];
-               s2 = psin3[y + t1];
-               for (x = 0; x < fb_width; x+=2)
-               {
-                       c = psin1[x + t1] + s1 + psin3[x + y + t3] + psin1[psin2[x + t2] + s2 + t3];
-                       p0 = plasmaPal[c];
-                       c = psin1[x + 1 + t1] + s1 + psin3[x + 1 + y + t3] + psin1[psin2[x + 1 + t2] + s2 + t3];
-                       p1 = plasmaPal[c];
-
-                       *vram32++ = (p1 << 16) | p0;
-               }
-       }
-
-       swap_buffers(0);
-}