mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* sprite_draw.c: スプライト再描画各種
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*
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* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
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* 1998- <masaki-c@is.aist-nara.ac.jp>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* $Id: sprite_draw.c,v 1.1 2003/11/09 15:06:12 chikama Exp $ */
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#include "config.h"
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#include <stdio.h>
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#include <SDL.h>
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#include "portab.h"
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#include "system.h"
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#include "ags.h"
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#include "sprite.h"
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/*
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指定の sprite (の現在のCG)を surface0 に書く
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@param sp: 描画するスプライト
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@param r : 再描画する領域
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*/
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void nt_sp_draw(sprite_t *sp, SDL_Rect *r) {
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if (sp == NULL) return;
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cginfo_t *cg = sp->curcg;
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if (cg == NULL) return;
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if (cg->sf == NULL) return;
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// 更新領域の確定
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SDL_Rect cg_rect = {0, 0, cg->sf->w, cg->sf->h};
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int sx = 0;
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int sy = 0;
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int dx = sp->cur.x;
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int dy = sp->cur.y;
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int w = cg->sf->w;
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int h = cg->sf->h;
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if (!ags_clipCopyRect(&cg_rect, r, &sx, &sy, &dx, &dy, &w, &h)) {
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return;
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}
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if (SDL_ISPIXELFORMAT_ALPHA(cg->sf->format->format) || sp->blendrate < 255) {
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SDL_SetSurfaceBlendMode(cg->sf, SDL_BLENDMODE_BLEND);
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SDL_SetSurfaceAlphaMod(cg->sf, sp->blendrate);
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} else {
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SDL_SetSurfaceBlendMode(cg->sf, SDL_BLENDMODE_NONE);
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}
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SDL_BlitSurface(cg->sf, &(SDL_Rect){sx, sy, w, h}, main_surface, &(SDL_Rect){dx, dy, w, h});
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SACT_DEBUG("do update no=%d, sx=%d, sy=%d, w=%d, h=%d, dx=%d, dy=%d",
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sp->no, sx, sy, w, h, dx, dy);
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}
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// BlendScreenによる描画
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void nt_sp_draw_scg(sprite_t *sp, SDL_Rect *r) {
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if (sp == NULL) return;
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cginfo_t *cg = sp->curcg;
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if (cg == NULL) return;
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if (cg->sf == NULL) return;
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// 更新領域の確定
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SDL_Rect cg_rect = {0, 0, cg->sf->w, cg->sf->h};
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int sx = 0;
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int sy = 0;
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int dx = sp->cur.x;
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int dy = sp->cur.y;
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int w = cg->sf->w;
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int h = cg->sf->h;
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if (!ags_clipCopyRect(&cg_rect, r, &sx, &sy, &dx, &dy, &w, &h)) {
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return;
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}
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SDL_SetSurfaceBlendMode(cg->sf, SDL_BLENDMODE_ADD);
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SDL_BlitSurface(cg->sf, &(SDL_Rect){sx, sy, w, h}, main_surface, &(SDL_Rect){dx, dy, w, h});
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SACT_DEBUG("do update no=%d, sx=%d, sy=%d, w=%d, h=%d, dx=%d, dy=%d",
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sp->no, sx, sy, w, h, dx, dy);
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}
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