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Merge pull request #128 from retro-wertz/overclocking

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backport overclocking - allow to choose between vblank and postrender scanlines
This commit is contained in:
Twinaphex
2017-08-27 10:18:59 +02:00
committed by GitHub
parent 155d1f7cc7 693805ff95
commit 62169675ae
8 changed files with 31 additions and 17 deletions
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17
src/drivers/libretro/libretro.c
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@@ -56,6 +56,7 @@ unsigned overclocked = 0;
unsigned skip_7bit_overclocking = 1;
unsigned normal_scanlines = 240;
unsigned extrascanlines = 0;
unsigned vblankscanlines = 0;
unsigned overclock_state = -1;
unsigned dendy = 0;
@@ -693,7 +694,7 @@ void retro_set_environment(retro_environment_t cb)
static const struct retro_variable vars[] = {
{ "fceumm_palette", "Color Palette; asqrealc|loopy|quor|chris|matt|pasofami|crashman|mess|zaphod-cv|zaphod-smb|vs-drmar|vs-cv|vs-smb|nintendo-vc|yuv-v3|unsaturated-final|sony-cxa2025as-us|pal|bmf-final2|bmf-final3|composite-direct-fbx|pvm-style-d93-fbx|ntsc-hardware-fbx|nes-classic-fbx-fs|nescap|raw" },
{ "fceumm_nospritelimit", "No Sprite Limit; disabled|enabled" },
{ "fceumm_overclocking", "Overclocking; disabled|2x" },
{ "fceumm_overclocking", "Overclocking; disabled|2x-Postrender|2x-VBlank" },
{ "fceumm_overscan", "Crop Overscan; enabled|disabled" },
{ "fceumm_turbo_enable", "Turbo Enable; None|Player 1|Player 2|Both" },
{ "fceumm_turbo_delay", "Turbo Delay (in frames); 3|5|10|15|30|60|1|2" },
@@ -967,15 +968,25 @@ static void check_variables(bool startup)
overclocked = 0;
skip_7bit_overclocking = 1;
extrascanlines = 0;
vblankscanlines = 0;
overclock_state = 0;
do_reinit = true;
}
else if (!strcmp(var.value, "2x")
&& overclock_state != 1)
else if (!strcmp(var.value, "2x-Postrender"))
{
overclocked = 1;
skip_7bit_overclocking = 1;
extrascanlines = 266;
vblankscanlines = 0;
overclock_state = 1;
do_reinit = true;
}
else if (!strcmp(var.value, "2x-VBlank"))
{
overclocked = 1;
skip_7bit_overclocking = 1;
extrascanlines = 0;
vblankscanlines = 266;
overclock_state = 1;
do_reinit = true;
}