mirror of
https://github.com/kevinbentley/Descent3.git
synced 2025-01-22 19:55:23 +00:00
154 lines
3.3 KiB
C++
154 lines
3.3 KiB
C++
/*
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* Descent 3
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* Copyright (C) 2024 Parallax Software
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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 3 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, see <http://www.gnu.org/licenses/>.
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--- HISTORICAL COMMENTS FOLLOW ---
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* Video library.
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*
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* $NoKeywords: $
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*/
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#include <cstring>
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#include <cstdlib>
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#include "ddvid.h"
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#include "application.h"
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#include "lnxapp.h"
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struct tinfo {
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int width, height, bytesperpixel, linewidth;
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};
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struct tDDVideoInfo {
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oeLnxApplication *app;
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// vga_modeinfo *info;
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tinfo *info;
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bool paged;
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};
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//////////////////////////////////////////////////////////////////////////////
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// Variables
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tDDVideoInfo DDVideo_info;
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static bool DDVideo_init = false;
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//////////////////////////////////////////////////////////////////////////////
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// Prototypes
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//////////////////////////////////////////////////////////////////////////////
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// Functions
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// called first to allow fullscreen video access
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bool ddvid_Init(oeApplication *app, char *driver) {
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int subsys_id;
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// preinitialize system.
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if (!DDVideo_init) {
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DDVideo_info.app = NULL;
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DDVideo_info.info = NULL;
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atexit(ddvid_Close);
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} else {
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ddvid_Close();
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}
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DDVideo_init = true;
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DDVideo_info.app = (oeLnxApplication *)app;
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// vga_init();
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return true;
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}
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// closes ddvid system manually.
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void ddvid_Close() {
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if (!DDVideo_init)
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return;
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/*
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if(vga_getcurrentmode()!=TEXT)
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vga_setmode(TEXT);
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*/
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DDVideo_init = false;
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}
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// sets the appropriate video mode.
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bool ddvid_SetVideoMode(int w, int h, int color_depth, bool paged) {
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/*
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ASSERT(DDVideo_init);
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int mode = -1;
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if( (w==640) && (h==480) ){
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switch(color_depth){
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case BPP_8:
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mode = G640x480x256;
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break;
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case BPP_16:
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mode = G640x480x32K;
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break;
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case BPP_24:
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mode = G640x480x64K;
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break;
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case BPP_32:
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mode = G640x480x16M;
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break;
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}
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}else
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if( (w==512) && (h==384) ){
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mode = -1;
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}else
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if( (w==800) && (h==600) ){
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switch(color_depth){
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case BPP_8:
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mode = G800x600x256;
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break;
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case BPP_16:
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mode = G800x600x32K;
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break;
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case BPP_24:
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mode = G800x600x64K;
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break;
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case BPP_32:
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mode = G800x600x16M;
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break;
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}
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}
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if(mode==-1)
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return false;
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if(!vga_hasmode(mode))
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return false;
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DDVideo_info.info = vga_getmodeinfo(mode);
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DDVideo_info.paged = (bool)(DDVideo_info.info->flags&HAVE_RWPAGE);
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if( (paged) && (!(DDVideo_info.paged)) ){
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DDVideo_info.info = NULL;
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Error("Pages not supported by mode %d\n",mode);
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return false;
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}
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vga_setmode(mode);
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*/
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return true;
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}
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// sets screen handle
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void ddvid_SetVideoHandle(unsigned handle) {}
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