ReC98/th01/main_13.c

48 lines
1.1 KiB
C

/* ReC98
* -----
* Code segment #13 of TH01's REIIDEN.EXE
*/
#include "th01/th01.h"
#pragma option -2
#pragma option -O-
#pragma option -Z-
#include "th01/grps2xsc.c"
void egc_copy_wave_1_to_0(int x, int y, int len, int amp, int ph, int w, int h)
{
int row;
int t = ph;
for(row = 0; row < h; row++) {
int x_wave = (((long)amp * Sin8(t)) / 256) + x;
t += 256 / len;
egc_copy_rect_1_to_0(x_wave, y + row, w, 1);
}
}
void graph_copy_hline_mask_1_to_0(int x, int y, char *mask, int w)
{
vram_planar_8_pixels_t px8;
int col;
register int p = VRAM_OFFSET(x, y);
for(col = 0; col < w; col++, p++) {
if(mask[col]) {
graph_accesspage_func(1);
px8.B = mask[col] & VRAM_PLANE_B[p];
px8.R = mask[col] & VRAM_PLANE_R[p];
px8.G = mask[col] & VRAM_PLANE_G[p];
px8.E = mask[col] & VRAM_PLANE_E[p];
graph_accesspage_func(0);
grcg_setcolor_rmw(0);
VRAM_PLANE_B[p] = mask[col];
grcg_off();
VRAM_PLANE_B[p] |= px8.B;
VRAM_PLANE_R[p] |= px8.R;
VRAM_PLANE_G[p] |= px8.G;
VRAM_PLANE_E[p] |= px8.E;
}
}
}