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/*
* sprite_draw.c: ץ饤ȺƼ
*
* 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: sprite_draw.c,v 1.4 2004/10/31 04:18:02 chikama Exp $ */
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include "portab.h"
#include "system.h"
#include "ags.h"
#include "graphics.h"
#include "sact.h"
#include "surface.h"
#include "ngraph.h"
#include "sprite.h"
static void fill_dmap(int dx ,int dy, int w, int h, WORD val);
static void fill_dmap_mask(surface_t *src, int sx, int sy, int dx ,int dy, int w, int h, WORD val);
// depthmap
static void fill_dmap(int dx ,int dy, int w, int h, WORD val) {
BYTE *dp, *dp_;
int x, y;
dp = dp_ = (GETOFFSET_PIXEL(sact.dmap, dx, dy));
for (x = 0; x < w; x++) {
*((WORD *)dp + x) = val;
}
dp += sact.dmap->bytes_per_line;
for (y = 1; y < h; y++) {
memcpy(dp, dp_, w * 2);
dp += sact.dmap->bytes_per_line;
}
}
// alphamapˤäơalphaͤ0礭ȤdepthȤ
static void fill_dmap_mask(surface_t *src, int sx, int sy, int dx ,int dy, int w, int h, WORD val) {
BYTE *sp, *dp;
int x, y;
dp = GETOFFSET_PIXEL(sact.dmap, dx, dy);
sp = GETOFFSET_ALPHA(src, sx, sy);
for (y = 0; y < h; y++) {
BYTE *yls = (BYTE *)(sp + y * src->width);
WORD *yld = (WORD *)(dp + y * sact.dmap->bytes_per_line);
for (x = 0; x < w; x++) {
if (*yls > 0) *yld = val;
yls++; yld++;
}
}
}
/*
sprite (θߤCG) surface0 ˽
@param sp: 褹륹ץ饤
*/
int sp_draw(sprite_t *sp) {
if (sp == NULL) return NG;
return sp_draw2(sp, sp->curcg);
}
/*
spriteλCG surface0 ˽
(ΥեϤ⤦?)
@param sp: 褹륹ץ饤
@param cg: 褹CG
*/
int sp_draw2(sprite_t *sp, cginfo_t *cg) {
surface_t update;
int sx, sy, w, h, dx, dy;
if (cg == NULL) return NG;
if (cg->sf == NULL) return NG;
// ΰγ
update.width = sact.updaterect.width;
update.height = sact.updaterect.height;
sx = 0;
sy = 0;
dx = sp->cur.x - sact.updaterect.x;
dy = sp->cur.y - sact.updaterect.y;
w = cg->sf->width;
h = cg->sf->height;
if (!gr_clip(cg->sf, &sx, &sy, &w, &h, &update, &dx, &dy)) {
return NG;
}
dx += sact.updaterect.x;
dy += sact.updaterect.y;
if (cg->sf->has_alpha) {
// alpha map
gre_BlendUseAMap(sf0, dx, dy,
sf0, dx, dy,
cg->sf, sx, sy, w, h,
cg->sf, sx, sy,
sp->blendrate);
} else {
if (sp->blendrate == 255) {
// alphaͻ̵꤬
gr_copy(sf0, dx, dy, cg->sf, sx, sy, w, h);
} else if (sp->blendrate > 0) {
// alphaͻ꤬
gre_Blend(sf0, dx, dy,
sf0, dx, dy,
cg->sf, sx, sy, w, h,
sp->blendrate);
}
}
WARNING("do update no=%d, sx=%d, sy=%d, w=%d, h=%d, dx=%d, dy=%d\n", sp->no, sx, sy, w, h, dx, dy);
return OK;
}
/*
ץ饤ȥԤѤdepthmap
*/
void sp_draw_dmap(gpointer data, gpointer userdata) {
sprite_t *sp = (sprite_t *)data;
cginfo_t *cg;
surface_t update;
int sx, sy, w, h, dx, dy;
// ɽ֤λ̵
if (!sp->show) return;
// ɥåΥץ饤Ȥ̵
if (sp == sact.draggedsp) return;
cg = sp->curcg;
if (cg == NULL) return;
if (cg->sf == NULL) return;
// depth map ΰ
update.width = sf0->width;
update.height = sf0->height;
sx = 0;
sy = 0;
dx = sp->cur.x;
dy = sp->cur.y;
w = cg->sf->width;
h = cg->sf->height;
if (!gr_clip(cg->sf, &sx, &sy, &w, &h, &update, &dx, &dy)) {
return;
}
if (cg->sf->has_alpha) {
fill_dmap_mask(cg->sf, sx, sy, dx, dy, w, h, sp->no);
} else {
fill_dmap(dx, dy, w, h, sp->no);
}
return;
}
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