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