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/*
* graph_cg.c surface ºݤcgǡ
*
* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
* 1998- <masaki-c@is.aist-nara.ac.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* $Id: graph_cg.c,v 1.2 2003/08/30 21:29:16 chikama Exp $ */
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "portab.h"
#include "surface.h"
#include "cg.h"
#include "ags.h"
#include "ngraph.h"
/**
* surface 24bpp CG (QNT)
*
* @param ds: surface
* @param cg: 褹CGǡ
* @param x: غɸ
* @param y: ٺɸ
*/
void gr_drawimage24(surface_t *ds, cgdata *cg, int x, int y) {
int dx, dy, dw, dh;
BYTE *sp, *dp, r, g, b;
dx = x;
dy = y;
dw = cg->width;
dh = cg->height;
if (!gr_clip_xywh(ds, &dx, &dy, &dw, &dh)) return;
cg->data_offset = (abs(dy - y) * cg->width + abs(dx - x)) * 3;
sp = (BYTE *)(cg->pic + cg->data_offset);
dp = GETOFFSET_PIXEL(ds, dx, dy);
switch(ds->depth) {
case 15:
{
WORD *yl;
for (y = 0; y < dh; y++) {
yl = (WORD *)(dp + y * ds->bytes_per_line);
for (x = 0; x < dw; x++) {
r = *sp;
g = *(sp +1);
b = *(sp +2);
*yl = PIX15(r, g, b);
yl++; sp += 3;
}
sp += ((cg->width - dw) * 3);
}
break;
}
case 16:
{
WORD *yl;
for (y = 0; y < dh; y++) {
yl = (WORD *)(dp + y * ds->bytes_per_line);
for (x = 0; x < dw; x++) {
r = *sp;
g = *(sp +1);
b = *(sp +2);
*yl = PIX16(r, g, b);
yl++; sp += 3;
}
sp += ((cg->width - dw) * 3);
}
break;
}
case 24:
case 32:
{
DWORD *yl;
for (y = 0; y < dh; y++) {
yl = (DWORD *)(dp + y * ds->bytes_per_line);
for (x = 0; x < dw; x++) {
r = *sp;
g = *(sp +1);
b = *(sp +2);
*yl = PIX24(r, g, b);
yl++; sp += 3;
}
sp += ((cg->width - dw) * 3);
}
break;
}}
}
/**
* surface 16bpp CG (PMS16/BMP)
*
* @param ds: surface
* @param cg: 褹CGǡ
* @param x: غɸ
* @param y: ٺɸ
*/
void gr_drawimage16(surface_t *ds, cgdata *cg, int x, int y) {
int dx, dy, dw, dh;
BYTE *dp;
WORD pic16, *sp;
dx = x;
dy = y;
dw = cg->width;
dh = cg->height;
if (!gr_clip_xywh(ds, &dx, &dy, &dw, &dh)) return;
cg->data_offset = (abs(dy - y) * cg->width + abs(dx - x)) * 2;
sp = (WORD *)(cg->pic + cg->data_offset);
dp = GETOFFSET_PIXEL(ds, dx, dy);
switch(ds->depth) {
case 15:
{
WORD *yl;
for (y = 0; y < dh; y++) {
yl = (WORD *)(dp + y * ds->bytes_per_line);
for (x = 0; x < dw; x++) {
pic16 = *sp;
*yl = PIX15(RGB_PIXR16(pic16), RGB_PIXG16(pic16), RGB_PIXB16(pic16));
yl++; sp ++;
}
sp += (cg->width - dw);
}
break;
}
case 16:
{
for (y = 0; y < dh; y++) {
memcpy(dp, sp, dw * 2);
sp += cg->width;
dp += ds->bytes_per_line;
}
break;
}
case 24:
case 32:
{
DWORD *yl;
for (y = 0; y < dh; y++) {
yl = (DWORD *)(dp + y * ds->bytes_per_line);
for (x = 0; x < dw; x++) {
pic16 = *sp;
*yl = PIX24(RGB_PIXR16(pic16), RGB_PIXG16(pic16), RGB_PIXB16(pic16));
yl++; sp++;
}
sp += (cg->width - dw);
}
break;
}}
}
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