mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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147 lines
3.6 KiB
C
147 lines
3.6 KiB
C
/*
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* sactcg.c: CG作成
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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: sactcg.c,v 1.2 2003/11/16 15:29:52 chikama Exp $ */
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <SDL.h>
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#include "portab.h"
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#include "nact.h"
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#include "system.h"
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#include "ags.h"
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#include "cg.h"
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#include "sactcg.h"
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#define CGMAX 65536
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static cginfo_t *cgs[CGMAX];
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#define SPCG_ASSERT_NO(no) \
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if ((no) > (CGMAX -1)) { \
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WARNING("no is too large (should be %d < %d)", (no), CGMAX); \
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return; \
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} \
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static cginfo_t *nt_scg_new(enum cgtype type, int no, SDL_Surface *sf) {
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cginfo_t *info = calloc(1, sizeof(cginfo_t));
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info->type = type;
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info->no = no;
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info->sf = sf;
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info->refcnt = 1;
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nt_scg_free(no);
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cgs[no] = info;
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return info;
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}
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/*
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cgの読み込み
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指定の番号のCGをリンクファイルから読み込んだり、
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CG_xxxで作成したCGを参照する
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@param no: 読み込むCG番号
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*/
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static cginfo_t *nt_scg_get(int no) {
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if (no >= (CGMAX -1)) {
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WARNING("no is too large (should be %d < %d)", (no), CGMAX);
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return NULL;
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}
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if (cgs[no] != NULL)
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return cgs[no];
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SDL_Surface *sf = cg_load_as_sdlsurface(no - 1);
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if (!sf) {
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WARNING("load fail (%d)", no -1);
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return NULL;
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}
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return nt_scg_new(CG_LINKED, no, sf);
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}
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cginfo_t *nt_scg_addref(int no) {
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cginfo_t *info = nt_scg_get(no);
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if (info)
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info->refcnt++;
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return info;
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}
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void nt_scg_deref(cginfo_t *cg) {
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if (--cg->refcnt > 0)
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return;
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if (cg->sf)
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SDL_FreeSurface(cg->sf);
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free(cg);
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}
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// 指定の大きさ、色の矩形の CG を作成
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void nt_scg_create(int wNumCG, int wWidth, int wHeight, int wR, int wG, int wB, int wBlendRate) {
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SPCG_ASSERT_NO(wNumCG);
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SDL_Surface *sf = SDL_CreateRGBSurfaceWithFormat(0, wWidth, wHeight, 32, SDL_PIXELFORMAT_ARGB8888);
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SDL_FillRect(sf, NULL, SDL_MapRGBA(sf->format, wR, wG, wB, wBlendRate));
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nt_scg_new(CG_SET, wNumCG, sf);
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}
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// CGの一部を切りぬいたCGを作成
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void nt_scg_cut(int wNumDstCG, int wNumSrcCG, int wX, int wY, int wWidth, int wHeight) {
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SPCG_ASSERT_NO(wNumDstCG);
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SPCG_ASSERT_NO(wNumSrcCG);
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cginfo_t *src = nt_scg_get(wNumSrcCG);
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if (!src)
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return;
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SDL_Surface *sf = SDL_CreateRGBSurfaceWithFormat(0, wWidth, wHeight, src->sf->format->BitsPerPixel, src->sf->format->format);
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SDL_BlitSurface(src->sf, &(SDL_Rect){wX, wY, wWidth, wHeight}, sf, NULL);
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nt_scg_new(CG_SET, wNumDstCG, sf);
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}
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// 全てのCGの開放
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void nt_scg_freeall(void) {
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int i;
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for (i = 1; i < CGMAX; i++) {
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nt_scg_free(i);
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}
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}
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/**
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* 指定の番号の CG をオブジェクトリストから消し、オブジェクトがどこからも参照
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* されていない(参照数が0の)場合のみ、オブジェクトを削除
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*/
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void nt_scg_free(int no) {
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SPCG_ASSERT_NO(no);
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cginfo_t *cg = cgs[no];
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if (!cg) return;
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nt_scg_deref(cg);
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cgs[no] = NULL;
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}
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