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https://github.com/ekeeke/Genesis-Plus-GX.git
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256 lines
8.0 KiB
C
256 lines
8.0 KiB
C
/****************************************************************************
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* config.c
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*
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* Genesis Plus GX configuration file support
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*
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* Copyright Eke-Eke (2007-2012)
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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*
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* - Redistributions may not be sold, nor may they be used in a commercial
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* product or activity.
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*
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* - Redistributions that are modified from the original source must include the
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* complete source code, including the source code for all components used by a
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* binary built from the modified sources. However, as a special exception, the
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* source code distributed need not include anything that is normally distributed
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* (in either source or binary form) with the major components (compiler, kernel,
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* and so on) of the operating system on which the executable runs, unless that
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* component itself accompanies the executable.
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*
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* - Redistributions must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#include "shared.h"
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#include "gui.h"
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#include "file_load.h"
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static int config_load(void)
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{
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/* open configuration file */
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char fname[MAXPATHLEN];
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sprintf (fname, "%s/config.ini", DEFAULT_PATH);
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FILE *fp = fopen(fname, "rb");
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if (fp)
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{
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/* check file size */
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fseek(fp, 0, SEEK_END);
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if (ftell(fp) != sizeof(config))
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{
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fclose(fp);
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return 0;
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}
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/* check version */
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char version[16];
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fseek(fp, 0, SEEK_SET);
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fread(version, 16, 1, fp);
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if (memcmp(version,CONFIG_VERSION,16))
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{
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fclose(fp);
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return 0;
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}
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/* read file */
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fseek(fp, 0, SEEK_SET);
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fread(&config, sizeof(config), 1, fp);
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fclose(fp);
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return 1;
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}
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return 0;
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}
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void config_save(void)
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{
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/* open configuration file */
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char fname[MAXPATHLEN];
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sprintf (fname, "%s/config.ini", DEFAULT_PATH);
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FILE *fp = fopen(fname, "wb");
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if (fp)
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{
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/* write file */
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fwrite(&config, sizeof(config), 1, fp);
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fclose(fp);
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}
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}
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void config_default(void)
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{
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/* version TAG */
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strncpy(config.version,CONFIG_VERSION,16);
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/* sound options */
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config.psg_preamp = 150;
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config.fm_preamp = 100;
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config.hq_fm = 1;
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config.psgBoostNoise = 1;
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config.filter = 0;
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config.lp_range = 60;
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config.low_freq = 880;
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config.high_freq = 5000;
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config.lg = 1.0;
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config.mg = 1.0;
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config.hg = 1.0;
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config.dac_bits = 14;
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config.ym2413 = 2; /* AUTO */
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/* system options */
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config.system = 0; /* AUTO */
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config.region_detect = 0; /* AUTO */
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config.vdp_mode = 0; /* AUTO */
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config.master_clock = 0; /* AUTO */
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config.force_dtack = 0;
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config.addr_error = 1;
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config.bios = 0;
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config.lock_on = 0;
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config.hot_swap = 0;
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/* video options */
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config.xshift = 0;
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config.yshift = 0;
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config.xscale = 0;
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config.yscale = 0;
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config.aspect = 1;
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config.overscan = 3; /* FULL */
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config.gg_extra = 0;
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config.ntsc = 0;
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config.vsync = 1; /* AUTO */
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if (VIDEO_HaveComponentCable())
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{
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config.render = 2;
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config.bilinear = 1;
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}
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else
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{
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config.render = 0;
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config.bilinear = 0;
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}
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switch (vmode->viTVMode >> 2)
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{
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case VI_PAL:
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config.tv_mode = 1; /* 50hz only */
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break;
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case VI_EURGB60:
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config.tv_mode = 2; /* 50/60hz */
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break;
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default:
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config.tv_mode = 0; /* 60hz only */
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break;
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}
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#ifdef HW_RVL
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config.trap = 0;
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config.gamma = VI_GM_1_0 / 10.0;
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#endif
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/* controllers options */
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config.gun_cursor[0] = 1;
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config.gun_cursor[1] = 1;
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config.invert_mouse = 0;
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gx_input_SetDefault();
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/* menu options */
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config.autoload = 0;
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config.autocheat = 0;
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#ifdef HW_RVL
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config.s_auto = 1;
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#else
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config.s_auto = 0;
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config.v_prog = 1;
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#endif
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config.s_default = 1;
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config.s_device = 0;
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config.l_device = 0;
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config.bg_overlay = 0;
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config.screen_w = 658;
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config.bgm_volume = 100.0;
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config.sfx_volume = 100.0;
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/* default ROM directories */
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#ifdef HW_RVL
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sprintf (config.lastdir[0][TYPE_SD], "sd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[1][TYPE_SD], "sd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[2][TYPE_SD], "sd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[3][TYPE_SD], "sd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[4][TYPE_SD], "sd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[0][TYPE_USB], "usb:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[1][TYPE_USB], "usb:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[2][TYPE_USB], "usb:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[3][TYPE_USB], "usb:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[4][TYPE_USB], "usb:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[0][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[1][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[2][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[3][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[4][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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#else
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sprintf (config.lastdir[0][TYPE_SD], "%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[1][TYPE_SD], "%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[2][TYPE_SD], "%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[3][TYPE_SD], "%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[4][TYPE_SD], "%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[0][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[1][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[2][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[3][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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sprintf (config.lastdir[4][TYPE_DVD], "dvd:%s/roms/", DEFAULT_PATH);
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#endif
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/* try to restore user config */
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int loaded = config_load();
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/* restore inputs */
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input_init();
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#ifndef HW_RVL
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/* detect progressive mode enable/disable requests */
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PAD_ScanPads();
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if (PAD_ButtonsHeld(0) & PAD_BUTTON_B)
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{
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/* swap progressive mode enable flag and play some sound to inform user */
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config.v_prog ^= 1;
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ASND_Pause(0);
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int voice = ASND_GetFirstUnusedVoice();
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ASND_SetVoice(voice,VOICE_MONO_16BIT,44100,0,(u8 *)intro_pcm,intro_pcm_size,200,200,NULL);
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sleep (2);
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ASND_Pause(1);
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}
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/* switch into 480p if component cable has been detected and progressive mode is enabled */
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if (VIDEO_HaveComponentCable() && config.v_prog)
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{
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vmode = &TVNtsc480Prog;
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VIDEO_Configure (vmode);
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VIDEO_Flush();
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VIDEO_WaitVSync();
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VIDEO_WaitVSync();
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}
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#endif
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/* inform user if default config is used */
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if (!loaded)
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{
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GUI_WaitPrompt("Warning","Default Settings restored");
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}
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}
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