mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
read-ahead turn off, cfg file, minor adjustments
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@399 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
d6114368e1
commit
2d2247c260
10 changed files with 186 additions and 57 deletions
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@ -391,14 +391,10 @@ This enables 8 channel PCM sound source. It is required for some games to run,
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because they monitor state of this audio chip.
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@@2. "ReadAhead buffer"
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#ifdef GP2X
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This option is for dealing with slow SD card access in GP2X, which makes FMV
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games unplayable. It will allow emulator not to access SD card for longer periods
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of time, but it will take more time to fill the buffer.
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#endif
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#ifdef GIZ
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This option can prefetch more data from the CD then read by the game - not really
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useful for Gizmondo (this is a workaround for SD access problems on GP2X port).
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This option can prefetch more data from the CD image then requested by game
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(to avoid accessing card later), what can improve performance in some cases.
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#ifndef PSP
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"OFF" is the recommended setting.
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#endif
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@@2. "Save RAM cart"
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@ -616,6 +612,7 @@ Additional thanks
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* A_SN for his gamma code.
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* craigix for supplying the GP2X hardware and making this port possible.
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* Alex for the icon.
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* Exophase and Rokas for various ideas.
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* All the people from gp32x boards for their support.
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#endif
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#ifdef GIZ
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@ -638,14 +635,21 @@ Changelog
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---------
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1.40
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+ Added support for SVP (Sega Virtua Processor) to emulate Virtua Racing,
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wrote ARM recompiler and some HLE code for VR.
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wrote ARM recompiler and some HLE code for VR. Credits to Exophase and
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Rokas for various ideas.
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* Changed config file format, files are now human-readable. Game specific
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configs are now held in single file (but old game config files are still
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read).
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read when new one is missing).
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* Fixed a bug where some key combos didn't work as expected.
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* Fixed a regression in renderer (some graphic glitches in rare cases).
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* Adjusted fast rernderer to work with more games, including VR.
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* Adjusted fast renderer to work with more games, including VR.
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* Fixed a problem where SegaCD RAM cart data was getting lost on reset.
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* Greatly reduced SegaCD FMV game slowdowns by disabling read-ahead in the
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Linux kernel and C library (thanks to Rokas and Exophase for ideas again).
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Be sure to keep "ReadAhead buffer" OFF to avoid slowdowns.
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+ PicoDrive now comes with a game config file for some games which need
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special settings, so they should now work out-of-the-box. More games will
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be added with later updates.
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1.35b
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* PSP: mp3 code should no longer fail on 1.5 firmware.
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@ -89,8 +89,8 @@ static void get_ext(char *file, char *ext)
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strlwr_(ext);
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}
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char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };
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char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };
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char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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int emu_findBios(int region, char **bios_file)
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@ -278,7 +278,8 @@ int emu_ReloadRom(void)
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free(movie_data);
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movie_data = 0;
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}
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if (!strcmp(ext, ".gmv")) {
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if (!strcmp(ext, ".gmv"))
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{
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// check for both gmv and rom
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int dummy;
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FILE *movie_file = fopen(romFileName, "rb");
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@ -544,7 +545,7 @@ int emu_ReadConfig(int game, int no_defaults)
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PsndRate = currentConfig.s_PsndRate;
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PicoRegionOverride = currentConfig.s_PicoRegion;
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PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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// PicoCDBuffers = currentConfig.s_PicoCDBuffers; // ignore in this case
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}
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}
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else
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@ -921,9 +921,9 @@ static void cd_menu_loop_options(void)
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selected_id == MA_CDOPT_READAHEAD) {
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if (inp & BTN_LEFT) {
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PicoCDBuffers >>= 1;
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if (PicoCDBuffers < 64) PicoCDBuffers = 0;
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if (PicoCDBuffers < 2) PicoCDBuffers = 0;
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} else {
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if (PicoCDBuffers < 64) PicoCDBuffers = 64;
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if (PicoCDBuffers < 2) PicoCDBuffers = 2;
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else PicoCDBuffers <<= 1;
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if (PicoCDBuffers > 8*1024) PicoCDBuffers = 8*1024; // 16M
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}
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@ -141,7 +141,7 @@ void emu_prepareDefaultConfig(void)
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defaultConfig.s_PsndRate = 44100;
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defaultConfig.s_PicoRegion = 0; // auto
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defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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defaultConfig.s_PicoCDBuffers = 64;
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defaultConfig.s_PicoCDBuffers = 0;
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defaultConfig.Frameskip = -1; // auto
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defaultConfig.CPUclock = 200;
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defaultConfig.volume = 50;
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109
platform/gp2x/game.cfg
Normal file
109
platform/gp2x/game.cfg
Normal file
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@ -0,0 +1,109 @@
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#
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# Sega/Mega CD games
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#
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[CD|GM MK-4432 -00|U|ADVENTURES OF BA]
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Scale/Rot. fx (slow) = 1
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Better sync (slow) = 1
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[CD|GM T-60055-00|U|AH3-THUNDERSTRIKE]
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Scale/Rot. fx (slow) = 1
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[CD|GM MK-4401 -00|U|BATMAN RETURNS]
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Scale/Rot. fx (slow) = 1
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[CD|GM T-115075-00|U|BCRACERS]
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Scale/Rot. fx (slow) = 1
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[CD|GM MK-4402|U|COBRA COMMAND]
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Better sync (slow) = 1
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[CD|GM MK-4651 -00|U|DARK WIZARD]
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Better sync (slow) = 1
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[CD|GM T-121015-00|U|DRAGONS LAIR]
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Renderer = 16bit accurate
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[CD|GM T-60094|J|JAGUAR XJ220]
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Renderer = 16bit accurate
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[CD|GM T-127015-00|U|LUNAR]
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Scale/Rot. fx (slow) = 1
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[CD|GM T-111065 -0|U|MAD DOG II THE LOST GOLD]
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Renderer = 16bit accurate
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[CD|GM T-11105 -00|U|MAD DOG MCCREE]
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Renderer = 16bit accurate
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[CD|GM T-81025-00|U|MORTAL KOMBAT]
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Renderer = 16bit accurate
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Better sync (slow) = 1
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[CD|GM T-04903-01|U|NIGHT TRAP]
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Renderer = 16bit accurate
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[CD|GM T-113025-00|U|NOVASTORM]
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Better sync (slow) = 1
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[CD|GM T-127035-00|U|Popful MAIL]
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Better sync (slow) = 1
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[CD|MK 4603-50|JUE|ROAD AVENGER]
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Renderer = 16bit accurate
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Better sync (slow) = 1
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[CD|GM T-50085|U|ROAD RASH]
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Renderer = 16bit accurate
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Better sync (slow) = 1
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[CD|GM MK-4416 -00|E|ROBO ALESTE]
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Renderer = 16bit accurate
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[CD|GM T-06201-03|U|SEWER SHARK]
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Renderer = 16bit accurate
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[CD|GM T-113045-00|E|SHADOW OF THE BEAST TWO]
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Renderer = 16bit accurate
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[CD|GM MK-4404|U|SOL-FEACE]
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Better sync (slow) = 1
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[CD|GM MK-4407-00|E|SONIC THE HEDGEHOG-CD]
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Scale/Rot. fx (slow) = 1
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[CD|GM MK-4407 -00|U|SONIC THE HEDGEHOG-CD]
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Scale/Rot. fx (slow) = 1
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[CD|GM T-22025-00|U|THE 3RD WORLD WAR]
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Better sync (slow) = 1
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[CD|GM MK- 4430 -|E|YUMEMI MISTERY MANSION]
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Renderer = 16bit accurate
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#
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# Virtua Racing
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#
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[MD|GM MK-1229 -00|U|Virtua Racing]
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Renderer = 8bit fast
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Show FPS = 1
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GP2X CPU clocks = 235
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[MD|GM G-7001 -00|J|Virtua Racing]
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Renderer = 8bit fast
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Show FPS = 1
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GP2X CPU clocks = 235
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[MD|GM MK-1229 -00|E|Virtua Racing]
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Renderer = 8bit fast
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Show FPS = 1
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GP2X CPU clocks = 235
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[MD|GM MK-1229 -00|E|VIRTUA RACING \00\00\00\00\00\00\00\00\00]
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Renderer = 8bit fast
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Show FPS = 1
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GP2X CPU clocks = 235
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#
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# Genesis/MegaDrive games
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#
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@ -284,6 +284,31 @@ void Reset940(int yes, int bank)
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gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03);
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}
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static void proc_set(const char *path, const char *val)
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{
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FILE *f;
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char tmp[16];
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f = fopen(path, "w");
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if (f == NULL) {
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printf("failed to open: %s\n", path);
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return;
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}
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fprintf(f, "0\n");
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fclose(f);
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printf("\"%s\" is set to: ", path);
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f = fopen(path, "r");
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if (f == NULL) {
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printf("(open failed)\n");
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return;
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}
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fgets(tmp, sizeof(tmp), f);
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printf("%s", tmp);
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fclose(f);
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}
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/* common */
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@ -337,6 +362,10 @@ void gp2x_init(void)
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/* init usb joys -GnoStiC */
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gp2x_usbjoy_init();
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/* disable Linux read-ahead */
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proc_set("/proc/sys/vm/max-readahead", "0\n");
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proc_set("/proc/sys/vm/min-readahead", "0\n");
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printf("exitting init()\n"); fflush(stdout);
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}
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@ -960,9 +960,9 @@ static void cd_menu_loop_options(void)
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selected_id == MA_CDOPT_READAHEAD) {
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if (inp & GP2X_LEFT) {
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PicoCDBuffers >>= 1;
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if (PicoCDBuffers < 64) PicoCDBuffers = 0;
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if (PicoCDBuffers < 2) PicoCDBuffers = 0;
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} else {
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if (PicoCDBuffers < 64) PicoCDBuffers = 64;
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if (PicoCDBuffers < 2) PicoCDBuffers = 2;
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else PicoCDBuffers <<= 1;
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if (PicoCDBuffers > 8*1024) PicoCDBuffers = 8*1024; // 16M
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}
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@ -936,9 +936,9 @@ static void cd_menu_loop_options(void)
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selected_id == MA_CDOPT_READAHEAD) {
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if (inp & BTN_LEFT) {
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PicoCDBuffers >>= 1;
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if (PicoCDBuffers < 64) PicoCDBuffers = 0;
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if (PicoCDBuffers < 2) PicoCDBuffers = 0;
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} else {
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if (PicoCDBuffers < 64) PicoCDBuffers = 64;
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if (PicoCDBuffers < 2) PicoCDBuffers = 2;
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else PicoCDBuffers <<= 1;
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if (PicoCDBuffers > 8*1024) PicoCDBuffers = 8*1024; // 16M
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}
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