mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-26 19:21:49 +01:00
[Core/Sound]
. added optional MONO output mode . improved Low-Pass filter [Gamecube/Wii] . added configurable deflickering filter (normally enabled by default) . various improvement & bugfixes
This commit is contained in:
EkeEke
parent
c32af0586a
commit
f2800e6a2a
@ -100,8 +100,8 @@ void config_default(void)
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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.filter = 1;
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config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
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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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@ -109,6 +109,7 @@ void config_default(void)
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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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config.mono = 0;
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/* system options */
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config.system = 0; /* AUTO */
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@ -131,16 +132,16 @@ void config_default(void)
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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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config.bilinear = 1;
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config.vfilter = 1;
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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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@ -40,7 +40,7 @@
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#ifndef _CONFIG_H_
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#define _CONFIG_H_
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#define CONFIG_VERSION "GENPLUS-GX 1.7.2"
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#define CONFIG_VERSION "GENPLUS-GX 1.7.4"
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/****************************************************************************
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* Config Option
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@ -54,9 +54,10 @@ typedef struct
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uint8 psgBoostNoise;
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uint8 dac_bits;
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uint8 ym2413;
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uint8 mono;
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int16 psg_preamp;
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int16 fm_preamp;
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int16 lp_range;
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uint32 lp_range;
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int16 low_freq;
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int16 high_freq;
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int16 lg;
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@ -68,7 +69,6 @@ typedef struct
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uint8 vdp_mode;
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uint8 force_dtack;
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uint8 addr_error;
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uint8 tmss;
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uint8 bios;
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uint8 lock_on;
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uint8 hot_swap;
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@ -81,6 +81,7 @@ typedef struct
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uint8 render;
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uint8 tv_mode;
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uint8 bilinear;
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uint8 vfilter;
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uint8 aspect;
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int16 xshift;
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int16 yshift;
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@ -484,7 +484,7 @@ int FileSelector(int type)
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if (selection < 0)
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{
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selection = maxfiles - 1;
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offset = selection - 10 + 1;
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offset = maxfiles - 10;
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}
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if (selection < offset)
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offset -= 10;
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@ -559,8 +559,12 @@ int FileSelector(int type)
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if ((filelist[i].flags) && !strcmp(prev_folder,filelist[i].filename))
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{
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selection = i;
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offset = (i / 10) * 10;
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i = maxfiles;
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while (i >= (offset + 10))
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{
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offset += 10;
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if (offset > (maxfiles - 10)) offset = maxfiles - 10;
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}
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break;
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}
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}
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}
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@ -332,7 +332,7 @@ static gui_item items_options[5] =
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};
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/* Audio options */
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static gui_item items_audio[12] =
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static gui_item items_audio[13] =
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{
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{NULL,NULL,"Master System FM: AUTO", "Enable/disable YM2413 chip", 56,132,276,48},
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{NULL,NULL,"High-Quality FM: ON", "Adjust YM2612/YM2413 resampling quality", 56,132,276,48},
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@ -340,6 +340,7 @@ static gui_item items_audio[12] =
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{NULL,NULL,"FM Volume: 1.00", "Adjust YM2612/YM2413 output level", 56,132,276,48},
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{NULL,NULL,"PSG Volume: 2.50", "Adjust SN76489 output level", 56,132,276,48},
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{NULL,NULL,"PSG Noise Boost: OFF", "Boost SN76489 Noise Channel", 56,132,276,48},
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{NULL,NULL,"Audio Out: STEREO", "Select audio mixing output type", 56,132,276,48},
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{NULL,NULL,"Filtering: 3-BAND EQ", "Setup Audio filtering", 56,132,276,48},
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{NULL,NULL,"Low Gain: 1.00", "Adjust EQ Low Band Gain", 56,132,276,48},
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{NULL,NULL,"Mid Gain: 1.00", "Adjust EQ Mid Band Gain", 56,132,276,48},
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@ -365,18 +366,19 @@ static gui_item items_system[10] =
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/* Video options */
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#ifdef HW_RVL
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static gui_item items_video[12] =
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static gui_item items_video[13] =
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#else
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static gui_item items_video[10] =
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static gui_item items_video[11] =
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#endif
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{
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{NULL,NULL,"Display: PROGRESSIVE", "Select video mode", 56,132,276,48},
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{NULL,NULL,"TV mode: 50/60Hz", "Select video refresh rate", 56,132,276,48},
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{NULL,NULL,"VSYNC: AUTO", "Enable/disable sync with Video Hardware", 56,132,276,48},
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{NULL,NULL,"GX Bilinear Filter: OFF", "Enable/disable texture hardware filtering", 56,132,276,48},
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{NULL,NULL,"GX Deflickering Filter: OFF","Enable/disable GX hardware filtering", 56,132,276,48},
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#ifdef HW_RVL
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{NULL,NULL,"VI Trap Filter: ON", "Enable/disable video hardware filtering", 56,132,276,48},
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{NULL,NULL,"VI Gamma Correction: 1.0","Adjust video hardware gamma correction", 56,132,276,48},
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{NULL,NULL,"VI Gamma Correction: 1.0", "Adjust video hardware gamma correction", 56,132,276,48},
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#endif
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{NULL,NULL,"NTSC Filter: COMPOSITE", "Enable/disable NTSC software filtering", 56,132,276,48},
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{NULL,NULL,"Borders: OFF", "Enable/disable overscan emulation", 56,132,276,48},
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@ -819,6 +821,7 @@ static void soundmenu ()
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sprintf (items[3].text, "FM Volume: %1.2f", fm_volume);
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sprintf (items[4].text, "PSG Volume: %1.2f", psg_volume);
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sprintf (items[5].text, "PSG Noise Boost: %s", config.psgBoostNoise ? "ON":"OFF");
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sprintf (items[6].text, "Audio Out: %s", config.mono ? "MONO":"STEREO");
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if (config.filter == 2)
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{
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@ -826,26 +829,27 @@ static void soundmenu ()
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float mg = (float)config.mg/100.0;
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float hg = (float)config.hg/100.0;
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sprintf(items[6].text, "Filtering: 3-BAND EQ");
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sprintf(items[7].text, "Low Gain: %1.2f", lg);
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strcpy(items[7].comment, "Adjust EQ Low Band Gain");
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sprintf(items[8].text, "Middle Gain: %1.2f", mg);
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sprintf(items[9].text, "High Gain: %1.2f", hg);
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sprintf(items[10].text, "Low Freq: %d", config.low_freq);
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sprintf(items[11].text, "High Freq: %d", config.high_freq);
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m->max_items = 12;
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sprintf(items[7].text, "Filtering: 3-BAND EQ");
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sprintf(items[8].text, "Low Gain: %1.2f", lg);
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strcpy(items[8].comment, "Adjust EQ Low Band Gain");
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sprintf(items[9].text, "Middle Gain: %1.2f", mg);
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sprintf(items[10].text, "High Gain: %1.2f", hg);
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sprintf(items[11].text, "Low Freq: %d", config.low_freq);
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sprintf(items[12].text, "High Freq: %d", config.high_freq);
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m->max_items = 13;
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}
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else if (config.filter == 1)
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{
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sprintf (items[6].text, "Filtering: LOW-PASS");
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sprintf (items[7].text, "Low-Pass Rate: %d %%", config.lp_range);
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strcpy (items[7].comment, "Adjust Low Pass filter");
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m->max_items = 8;
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int lp_range = (config.lp_range * 100 + 0xffff) / 0x10000;
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sprintf (items[7].text, "Filtering: LOW-PASS");
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sprintf (items[8].text, "Low-Pass Rate: %d %%", lp_range);
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strcpy (items[9].comment, "Adjust Low Pass filter");
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m->max_items = 9;
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}
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else
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{
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sprintf (items[6].text, "Filtering: OFF");
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m->max_items = 7;
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sprintf (items[7].text, "Filtering: OFF");
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m->max_items = 8;
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}
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GUI_InitMenu(m);
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@ -935,28 +939,36 @@ static void soundmenu ()
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}
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case 6:
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{
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config.mono ^= 1;
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sprintf (items[6].text, "Audio Out: %s", config.mono ? "MONO":"STEREO");
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break;
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}
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case 7:
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{
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config.filter = (config.filter + 1) % 3;
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if (config.filter == 2)
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{
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float lg = (float)config.lg/100.0;
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sprintf (items[6].text, "Filtering: 3-BAND EQ");
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sprintf (items[7].text, "Low Gain: %1.2f", lg);
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strcpy (items[7].comment, "Adjust EQ Low Band Gain");
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m->max_items = 12;
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sprintf (items[7].text, "Filtering: 3-BAND EQ");
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sprintf (items[8].text, "Low Gain: %1.2f", lg);
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strcpy (items[8].comment, "Adjust EQ Low Band Gain");
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m->max_items = 13;
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audio_set_equalizer();
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}
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else if (config.filter == 1)
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{
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sprintf (items[6].text, "Filtering: LOW-PASS");
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sprintf (items[7].text, "Low-Pass Rate: %d %%", config.lp_range);
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strcpy (items[7].comment, "Adjust Low Pass filter");
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m->max_items = 8;
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int lp_range = (config.lp_range * 100 + 0xffff) / 0x10000;
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sprintf (items[7].text, "Filtering: LOW-PASS");
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sprintf (items[8].text, "Low-Pass Rate: %d %%", lp_range);
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strcpy (items[8].comment, "Adjust Low Pass filter");
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m->max_items = 9;
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}
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else
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{
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sprintf (items[6].text, "Filtering: OFF");
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m->max_items = 7;
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sprintf (items[7].text, "Filtering: OFF");
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m->max_items = 8;
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}
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while ((m->offset + 4) > m->max_items)
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@ -967,56 +979,58 @@ static void soundmenu ()
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break;
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}
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case 7:
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case 8:
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{
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if (config.filter == 1)
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{
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GUI_OptionBox(m,0,"Low-Pass Rate",(void *)&config.lp_range,1,0,100,1);
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sprintf (items[7].text, "Low-Pass Rate: %d %%", config.lp_range);
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int lp_range = (config.lp_range * 100 + 0xffff) / 0x10000;
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GUI_OptionBox(m,0,"Low-Pass Rate",(void *)&lp_range,1,0,100,1);
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sprintf (items[8].text, "Low-Pass Rate: %d %%", lp_range);
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config.lp_range = (lp_range * 0x10000) / 100;
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}
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else
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{
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float lg = (float)config.lg/100.0;
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GUI_OptionBox(m,0,"Low Gain",(void *)&lg,0.01,0.0,2.0,0);
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sprintf (items[7].text, "Low Gain: %1.2f", lg);
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sprintf (items[8].text, "Low Gain: %1.2f", lg);
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config.lg = (int)(lg * 100.0);
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audio_set_equalizer();
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}
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break;
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}
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case 8:
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case 9:
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{
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float mg = (float)config.mg/100.0;
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GUI_OptionBox(m,0,"Middle Gain",(void *)&mg,0.01,0.0,2.0,0);
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sprintf (items[8].text, "Middle Gain: %1.2f", mg);
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sprintf (items[9].text, "Middle Gain: %1.2f", mg);
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config.mg = (int)(mg * 100.0);
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audio_set_equalizer();
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break;
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}
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case 9:
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{
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float hg = (float)config.hg/100.0;
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GUI_OptionBox(m,0,"High Gain",(void *)&hg,0.01,0.0,2.0,0);
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sprintf (items[9].text, "High Gain: %1.2f", hg);
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config.hg = (int)(hg * 100.0);
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audio_set_equalizer();
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break;
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}
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case 10:
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{
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GUI_OptionBox(m,0,"Low Frequency",(void *)&config.low_freq,10,0,config.high_freq,1);
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sprintf (items[10].text, "Low Freq: %d", config.low_freq);
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float hg = (float)config.hg/100.0;
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GUI_OptionBox(m,0,"High Gain",(void *)&hg,0.01,0.0,2.0,0);
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sprintf (items[10].text, "High Gain: %1.2f", hg);
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config.hg = (int)(hg * 100.0);
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audio_set_equalizer();
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break;
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}
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case 11:
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{
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GUI_OptionBox(m,0,"Low Frequency",(void *)&config.low_freq,10,0,config.high_freq,1);
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sprintf (items[11].text, "Low Freq: %d", config.low_freq);
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audio_set_equalizer();
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break;
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}
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case 12:
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{
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GUI_OptionBox(m,0,"High Frequency",(void *)&config.high_freq,100,config.low_freq,30000,1);
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sprintf (items[11].text, "High Freq: %d", config.high_freq);
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sprintf (items[12].text, "High Freq: %d", config.high_freq);
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audio_set_equalizer();
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break;
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}
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@ -1292,14 +1306,7 @@ static void systemmenu ()
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case 6: /*** 68k Address Error ***/
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{
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config.addr_error ^= 1;
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if (((system_hw & SYSTEM_PBC) == SYSTEM_MD) && (system_hw != SYSTEM_MCD))
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{
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/* reinitialize cartridge hardware (UMK3 hack support) */
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md_cart_init();
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/* restore SRAM */
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slot_autoload(0,config.s_device);
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}
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m68k.aerr_enabled = config.addr_error;
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sprintf (items[6].text, "68k Address Error: %s", config.addr_error ? "ON" : "OFF");
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break;
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}
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@ -1439,14 +1446,14 @@ static void systemmenu ()
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*
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****************************************************************************/
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#ifdef HW_RVL
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#define VI_OFFSET 6
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#define VI_OFFSET 7
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static void update_gamma(void)
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{
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VIDEO_SetGamma((int)(config.gamma * 10.0));
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VIDEO_Flush();
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}
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#else
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#define VI_OFFSET 4
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#define VI_OFFSET 5
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#endif
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static void videomenu ()
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@ -1477,10 +1484,11 @@ static void videomenu ()
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sprintf (items[2].text, "VSYNC: OFF");
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sprintf (items[3].text, "GX Bilinear Filter: %s", config.bilinear ? " ON" : "OFF");
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sprintf (items[4].text, "GX Deflickering Filter: %s", config.vfilter ? " ON" : "OFF");
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#ifdef HW_RVL
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sprintf (items[4].text, "VI Trap Filter: %s", config.trap ? " ON" : "OFF");
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sprintf (items[5].text, "VI Gamma Correction: %1.1f", config.gamma);
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sprintf (items[5].text, "VI Trap Filter: %s", config.trap ? " ON" : "OFF");
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sprintf (items[6].text, "VI Gamma Correction: %1.1f", config.gamma);
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#endif
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if (config.ntsc == 1)
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@ -1493,7 +1501,7 @@ static void videomenu ()
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sprintf (items[VI_OFFSET].text, "NTSC Filter: OFF");
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if (config.overscan == 3)
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sprintf (items[VI_OFFSET+1].text, "Borders: ALL");
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sprintf (items[VI_OFFSET+1].text, "Borders: FULL");
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else if (config.overscan == 2)
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sprintf (items[VI_OFFSET+1].text, "Borders: H ONLY");
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else if (config.overscan == 1)
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@ -1590,13 +1598,18 @@ static void videomenu ()
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sprintf (items[3].text, "GX Bilinear Filter: %s", config.bilinear ? " ON" : "OFF");
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break;
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#ifdef HW_RVL
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case 4: /*** VIDEO Trap filtering ***/
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config.trap ^= 1;
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sprintf (items[4].text, "VI Trap Filter: %s", config.trap ? " ON" : "OFF");
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case 4: /*** GX Copy filtering (deflickering filter) ***/
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config.vfilter ^= 1;
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sprintf (items[4].text, "GX Deflicker Filter: %s", config.vfilter ? " ON" : "OFF");
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break;
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case 5: /*** VIDEO Gamma correction ***/
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#ifdef HW_RVL
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case 5: /*** VIDEO Trap filtering ***/
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config.trap ^= 1;
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sprintf (items[5].text, "VI Trap Filter: %s", config.trap ? " ON" : "OFF");
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break;
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case 6: /*** VIDEO Gamma correction ***/
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if (system_hw)
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{
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update_gamma();
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@ -1615,7 +1628,7 @@ static void videomenu ()
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m->arrows[1]->state = state[1];
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m->screenshot = 0;
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strcpy(m->title,"Video Settings");
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sprintf (items[5].text, "VI Gamma Correction: %1.1f", config.gamma);
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sprintf (items[6].text, "VI Gamma Correction: %1.1f", config.gamma);
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VIDEO_SetGamma(VI_GM_1_0);
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VIDEO_Flush();
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}
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@ -1641,7 +1654,7 @@ static void videomenu ()
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case VI_OFFSET+1: /*** overscan emulation ***/
|
||||
config.overscan = (config.overscan + 1) & 3;
|
||||
if (config.overscan == 3)
|
||||
sprintf (items[VI_OFFSET+1].text, "Borders: ALL");
|
||||
sprintf (items[VI_OFFSET+1].text, "Borders: FULL");
|
||||
else if (config.overscan == 2)
|
||||
sprintf (items[VI_OFFSET+1].text, "Borders: H ONLY");
|
||||
else if (config.overscan == 1)
|
||||
|
||||
@ -78,7 +78,7 @@ static void ai_callback(void)
|
||||
prevtime = current;
|
||||
#endif
|
||||
|
||||
audio_sync = 1;
|
||||
audio_sync = 0;
|
||||
}
|
||||
|
||||
/* AUDIO engine initialization */
|
||||
@ -128,7 +128,7 @@ void gx_audio_Shutdown(void)
|
||||
***/
|
||||
int gx_audio_Update(void)
|
||||
{
|
||||
if (audio_sync)
|
||||
if (!audio_sync)
|
||||
{
|
||||
/* Current available soundbuffer */
|
||||
s16 *sb = (s16 *)(soundbuffer[mixbuffer]);
|
||||
@ -151,7 +151,7 @@ int gx_audio_Update(void)
|
||||
DCFlushRange((void *)sb, size);
|
||||
AUDIO_InitDMA((u32) sb, size);
|
||||
mixbuffer = (mixbuffer + 1) % SOUND_BUFFER_NUM;
|
||||
audio_sync = 0;
|
||||
audio_sync = 1;
|
||||
|
||||
/* Start Audio DMA */
|
||||
/* this is called once to kick-off DMA from external memory to audio interface */
|
||||
@ -200,7 +200,7 @@ void gx_audio_Start(void)
|
||||
memset(soundbuffer, 0, 3 * SOUND_BUFFER_LEN);
|
||||
audioStarted = 0;
|
||||
mixbuffer = 0;
|
||||
audio_sync = 1;
|
||||
audio_sync = 0;
|
||||
}
|
||||
|
||||
/***
|
||||
|
||||
@ -368,7 +368,7 @@ static void vi_callback(u32 cnt)
|
||||
prevtime = current;
|
||||
#endif
|
||||
|
||||
video_sync = 1;
|
||||
video_sync = 0;
|
||||
}
|
||||
|
||||
/* Vertex Rendering */
|
||||
@ -460,7 +460,7 @@ static void gxResetRendering(u8 type)
|
||||
}
|
||||
|
||||
/* Reset GX rendering mode */
|
||||
static void gxResetMode(GXRModeObj *tvmode)
|
||||
static void gxResetMode(GXRModeObj *tvmode, int vfilter_enabled)
|
||||
{
|
||||
Mtx44 p;
|
||||
f32 yScale = GX_GetYScaleFactor(tvmode->efbHeight, tvmode->xfbHeight);
|
||||
@ -472,7 +472,7 @@ static void gxResetMode(GXRModeObj *tvmode)
|
||||
GX_SetScissor(0, 0, tvmode->fbWidth, tvmode->efbHeight);
|
||||
GX_SetDispCopySrc(0, 0, tvmode->fbWidth, tvmode->efbHeight);
|
||||
GX_SetDispCopyDst(xfbWidth, xfbHeight);
|
||||
GX_SetCopyFilter(tvmode->aa, tvmode->sample_pattern, (tvmode->xfbMode == VI_XFBMODE_SF) ? GX_FALSE : GX_TRUE, tvmode->vfilter);
|
||||
GX_SetCopyFilter(tvmode->aa, tvmode->sample_pattern, (tvmode->xfbMode == VI_XFBMODE_SF) ? GX_FALSE : vfilter_enabled, tvmode->vfilter);
|
||||
GX_SetFieldMode(tvmode->field_rendering, ((tvmode->viHeight == 2 * tvmode->xfbHeight) ? GX_ENABLE : GX_DISABLE));
|
||||
guOrtho(p, tvmode->efbHeight/2, -(tvmode->efbHeight/2), -(tvmode->fbWidth/2), tvmode->fbWidth/2, 100, 1000);
|
||||
GX_LoadProjectionMtx(p, GX_ORTHOGRAPHIC);
|
||||
@ -666,6 +666,9 @@ static void gxDrawCrosshair(gx_texture *texture, int x, int y)
|
||||
int w = (texture->width * rmode->fbWidth) / (rmode->viWidth);
|
||||
int h = (texture->height * rmode->efbHeight) / (rmode->viHeight);
|
||||
|
||||
/* Aspect correction for widescreen TV */
|
||||
if (config.aspect & 2) w = (w * 3) / 4;
|
||||
|
||||
/* EFB scale & shift */
|
||||
int xwidth = square[3] - square[9];
|
||||
int ywidth = square[4] - square[10];
|
||||
@ -718,15 +721,18 @@ static void gxDrawCdLeds(gx_texture *texture_l, gx_texture *texture_r)
|
||||
{
|
||||
/* adjust texture dimensions to XFB->VI scaling */
|
||||
int w = (texture_l->width * rmode->fbWidth) / (rmode->viWidth);
|
||||
int h = (texture_r->height * rmode->efbHeight) / (rmode->viHeight);
|
||||
int h = (texture_l->height * rmode->efbHeight) / (rmode->viHeight);
|
||||
|
||||
/* Aspect correction for widescreen TV */
|
||||
if (config.aspect & 2) w = (w * 3) / 4;
|
||||
|
||||
/* EFB scale & shift */
|
||||
int xwidth = square[3] - square[9];
|
||||
int ywidth = square[4] - square[10];
|
||||
|
||||
/* adjust texture coordinates to EFB */
|
||||
int xl = (((bitmap.viewport.x + 4) * xwidth) / (bitmap.viewport.w + 2*bitmap.viewport.x)) + square[9];
|
||||
int xr = xwidth - xl + 2*square[9] - w;
|
||||
int xl = ((bitmap.viewport.x * xwidth) / vwidth) + square[9] + 8;
|
||||
int xr = (((bitmap.viewport.x + bitmap.viewport.w) * xwidth) / vwidth) + square[9] - 8 - w;
|
||||
int y = (((bitmap.viewport.y + bitmap.viewport.h - 4) * ywidth) / vheight) + square[10] - h;
|
||||
|
||||
/* reset GX rendering */
|
||||
@ -1466,7 +1472,7 @@ void gx_video_Stop(void)
|
||||
|
||||
/* GX menu rendering */
|
||||
gxResetRendering(1);
|
||||
gxResetMode(vmode);
|
||||
gxResetMode(vmode, GX_TRUE);
|
||||
|
||||
/* render game snapshot */
|
||||
gxClearScreen((GXColor)BLACK);
|
||||
@ -1625,15 +1631,16 @@ void gx_video_Start(void)
|
||||
gxResetRendering(0);
|
||||
|
||||
/* resynchronize emulation with VSYNC */
|
||||
video_sync = 0;
|
||||
VIDEO_WaitVSync();
|
||||
}
|
||||
|
||||
/* GX render update */
|
||||
int gx_video_Update(void)
|
||||
{
|
||||
if (!video_sync && config.vsync && (gc_pal == vdp_pal)) return NO_SYNC;
|
||||
if (video_sync) return NO_SYNC;
|
||||
|
||||
video_sync = 0;
|
||||
video_sync = config.vsync && (gc_pal == vdp_pal);
|
||||
|
||||
/* check if display has changed during frame */
|
||||
if (bitmap.viewport.changed & 1)
|
||||
@ -1684,7 +1691,7 @@ int gx_video_Update(void)
|
||||
gxResetScaler(vwidth);
|
||||
|
||||
/* update GX rendering mode */
|
||||
gxResetMode(rmode);
|
||||
gxResetMode(rmode, config.vfilter);
|
||||
|
||||
/* update VI mode */
|
||||
VIDEO_Configure(rmode);
|
||||
@ -1829,7 +1836,7 @@ void gx_video_Init(void)
|
||||
/* Initialize GX */
|
||||
gxStart();
|
||||
gxResetRendering(1);
|
||||
gxResetMode(vmode);
|
||||
gxResetMode(vmode, GX_TRUE);
|
||||
|
||||
/* initialize FONT */
|
||||
FONT_Init();
|
||||
|
||||
@ -53,7 +53,7 @@ int16 SVP_cycles = 800;
|
||||
|
||||
static uint8 pause_b;
|
||||
static EQSTATE eq;
|
||||
static int32 llp,rrp;
|
||||
static int16 llp,rrp;
|
||||
|
||||
/******************************************************************************************/
|
||||
/* Audio subsystem */
|
||||
@ -239,46 +239,47 @@ int audio_update(int16 *buffer)
|
||||
/* Audio filtering */
|
||||
if (config.filter)
|
||||
{
|
||||
int32 i, l, r;
|
||||
int samples = size;
|
||||
int16 *out = buffer;
|
||||
int32 l, r;
|
||||
|
||||
if (config.filter & 1)
|
||||
{
|
||||
/* single-pole low-pass filter (6 dB/octave) */
|
||||
uint32 factora = (config.lp_range << 16) / 100;
|
||||
uint32 factora = config.lp_range;
|
||||
uint32 factorb = 0x10000 - factora;
|
||||
int32 ll = llp;
|
||||
int32 rr = rrp;
|
||||
|
||||
for (i = 0; i < size; i ++)
|
||||
/* restore previous sample */
|
||||
l = llp;
|
||||
r = rrp;
|
||||
|
||||
do
|
||||
{
|
||||
/* apply low-pass filter */
|
||||
ll = (ll>>16)*factora + buffer[0]*factorb;
|
||||
rr = (rr>>16)*factora + buffer[1]*factorb;
|
||||
l = ll >> 16;
|
||||
r = rr >> 16;
|
||||
l = l*factora + out[0]*factorb;
|
||||
r = r*factora + out[1]*factorb;
|
||||
|
||||
/* clipping (16-bit samples) */
|
||||
if (l > 32767) l = 32767;
|
||||
else if (l < -32768) l = -32768;
|
||||
if (r > 32767) r = 32767;
|
||||
else if (r < -32768) r = -32768;
|
||||
/* 16.16 fixed point */
|
||||
l >>= 16;
|
||||
r >>= 16;
|
||||
|
||||
/* update sound buffer */
|
||||
*buffer++ = l;
|
||||
*buffer++ = r;
|
||||
*out++ = l;
|
||||
*out++ = r;
|
||||
}
|
||||
while (--samples);
|
||||
|
||||
/* save last samples for next frame */
|
||||
llp = ll;
|
||||
rrp = rr;
|
||||
llp = l;
|
||||
rrp = r;
|
||||
}
|
||||
else if (config.filter & 2)
|
||||
{
|
||||
for (i = 0; i < size; i ++)
|
||||
do
|
||||
{
|
||||
/* 3 Band EQ */
|
||||
l = do_3band(&eq,buffer[0]);
|
||||
r = do_3band(&eq,buffer[1]);
|
||||
l = do_3band(&eq,out[0]);
|
||||
r = do_3band(&eq,out[1]);
|
||||
|
||||
/* clipping (16-bit samples) */
|
||||
if (l > 32767) l = 32767;
|
||||
@ -287,10 +288,25 @@ int audio_update(int16 *buffer)
|
||||
else if (r < -32768) r = -32768;
|
||||
|
||||
/* update sound buffer */
|
||||
*buffer++ = l;
|
||||
*buffer++ = r;
|
||||
*out++ = l;
|
||||
*out++ = r;
|
||||
}
|
||||
while (--samples);
|
||||
}
|
||||
}
|
||||
|
||||
/* Mono output mixing */
|
||||
if (config.mono)
|
||||
{
|
||||
int16 out;
|
||||
int samples = size;
|
||||
do
|
||||
{
|
||||
out = (buffer[0] + buffer[1]) / 2;
|
||||
*buffer++ = out;
|
||||
*buffer++ = out;
|
||||
}
|
||||
while (--samples);
|
||||
}
|
||||
|
||||
#ifdef LOGSOUND
|
||||
|
||||
@ -13,15 +13,16 @@ void set_config_defaults(void)
|
||||
config.fm_preamp = 100;
|
||||
config.hq_fm = 1;
|
||||
config.psgBoostNoise = 1;
|
||||
config.filter = 0;
|
||||
config.filter = 1;
|
||||
config.low_freq = 200;
|
||||
config.high_freq = 8000;
|
||||
config.lg = 1.0;
|
||||
config.mg = 1.0;
|
||||
config.hg = 1.0;
|
||||
config.lp_range = 60;
|
||||
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
|
||||
config.dac_bits = 14;
|
||||
config.ym2413 = 2; /* = AUTO (0 = always OFF, 1 = always ON) */
|
||||
config.mono = 0;
|
||||
|
||||
/* system options */
|
||||
config.system = 0; /* = AUTO (or SYSTEM_SG, SYSTEM_MARKIII, SYSTEM_SMS, SYSTEM_SMS2, SYSTEM_GG, SYSTEM_MD) */
|
||||
|
||||
@ -20,19 +20,19 @@ typedef struct
|
||||
uint8 ym2413;
|
||||
int16 psg_preamp;
|
||||
int16 fm_preamp;
|
||||
int16 lp_range;
|
||||
uint32 lp_range;
|
||||
int16 low_freq;
|
||||
int16 high_freq;
|
||||
int16 lg;
|
||||
int16 mg;
|
||||
int16 hg;
|
||||
uint8 mono;
|
||||
uint8 system;
|
||||
uint8 region_detect;
|
||||
uint8 vdp_mode;
|
||||
uint8 master_clock;
|
||||
uint8 force_dtack;
|
||||
uint8 addr_error;
|
||||
uint8 tmss;
|
||||
uint8 bios;
|
||||
uint8 lock_on;
|
||||
uint8 hot_swap;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user