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Merge pull request #387 from ds22x/patch-1

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[Libretro] Rework "Hide Master System Left Border" option
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ekeeke 2021-09-13 15:21:50 +02:00 committed by GitHub
commit e5608f4a0a
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1 changed files with 20 additions and 12 deletions
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libretro/libretro.c
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@ -907,12 +907,6 @@ static void update_overclock(void)
} }
#endif #endif
static void check_sms_border(void)
{
if (config.left_border && (bitmap.viewport.x == 0) && ((system_hw == SYSTEM_MARKIII) || (system_hw & SYSTEM_SMS) || (system_hw == SYSTEM_PBC)))
bitmap.viewport.x = -8;
}
static void check_variables(void) static void check_variables(void)
{ {
unsigned orig_value; unsigned orig_value;
@ -1398,8 +1392,10 @@ static void check_variables(void)
orig_value = config.left_border; orig_value = config.left_border;
if (!var.value || !strcmp(var.value, "disabled")) if (!var.value || !strcmp(var.value, "disabled"))
config.left_border = 0; config.left_border = 0;
else if (var.value && !strcmp(var.value, "enabled")) else if (var.value && !strcmp(var.value, "left border"))
config.left_border = 1; config.left_border = 1;
else if (var.value && !strcmp(var.value, "left & right borders"))
config.left_border = 2;
if (orig_value != config.left_border) if (orig_value != config.left_border)
update_viewports = true; update_viewports = true;
} }
@ -1453,7 +1449,6 @@ static void check_variables(void)
bitmap.viewport.x = (config.overscan & 2) ? 14 : -48; bitmap.viewport.x = (config.overscan & 2) ? 14 : -48;
else else
bitmap.viewport.x = (config.overscan & 2) * 7; bitmap.viewport.x = (config.overscan & 2) * 7;
check_sms_border();
} }
} }
@ -2016,7 +2011,7 @@ void retro_set_environment(retro_environment_t cb)
{ "genesis_plus_gx_lcd_filter", "LCD Ghosting filter; disabled|enabled" }, { "genesis_plus_gx_lcd_filter", "LCD Ghosting filter; disabled|enabled" },
{ "genesis_plus_gx_overscan", "Borders; disabled|top/bottom|left/right|full" }, { "genesis_plus_gx_overscan", "Borders; disabled|top/bottom|left/right|full" },
{ "genesis_plus_gx_gg_extra", "Game Gear extended screen; disabled|enabled" }, { "genesis_plus_gx_gg_extra", "Game Gear extended screen; disabled|enabled" },
{ "genesis_plus_gx_left_border", "Hide Master System Left Border; disabled|enabled" }, { "genesis_plus_gx_left_border", "Hide Master System Side Borders; disabled|left border|left & right borders" },
{ "genesis_plus_gx_aspect_ratio", "Core-provided aspect ratio; auto|NTSC PAR|PAL PAR" }, { "genesis_plus_gx_aspect_ratio", "Core-provided aspect ratio; auto|NTSC PAR|PAL PAR" },
{ "genesis_plus_gx_render", "Interlaced mode 2 output; single field|double field" }, { "genesis_plus_gx_render", "Interlaced mode 2 output; single field|double field" },
{ "genesis_plus_gx_gun_cursor", "Show Lightgun crosshair; disabled|enabled" }, { "genesis_plus_gx_gun_cursor", "Show Lightgun crosshair; disabled|enabled" },
@ -2378,7 +2373,6 @@ bool retro_unserialize(const void *data, size_t size)
overclock_delay = OVERCLOCK_FRAME_DELAY; overclock_delay = OVERCLOCK_FRAME_DELAY;
update_overclock(); update_overclock();
#endif #endif
check_sms_border();
return TRUE; return TRUE;
} }
@ -2646,7 +2640,6 @@ bool retro_load_game(const struct retro_game_info *info)
audio_init(SOUND_FREQUENCY, 0); audio_init(SOUND_FREQUENCY, 0);
system_init(); system_init();
system_reset(); system_reset();
check_sms_border();
is_running = false; is_running = false;
if (system_hw == SYSTEM_MCD) if (system_hw == SYSTEM_MCD)
@ -2792,6 +2785,8 @@ void retro_run(void)
{ {
bool updated = false; bool updated = false;
is_running = true; is_running = true;
int vwoffset = 0;
int bmdoffset = 0;
#ifdef HAVE_OVERCLOCK #ifdef HAVE_OVERCLOCK
/* update overclock delay */ /* update overclock delay */
@ -2852,7 +2847,20 @@ void retro_run(void)
} }
} }
video_cb(bitmap.data, vwidth, vheight, 720 * 2); if ((config.left_border != 0) && (reg[0] & 0x20) && (bitmap.viewport.x = 0) && ((system_hw == SYSTEM_MARKIII) || (system_hw & SYSTEM_SMS) || (system_hw == SYSTEM_PBC)))
{
bmdoffset = 16;
if (config.left_border == 1)
{
vwoffset = 8;
}
else
{
vwoffset = 16;
}
}
video_cb(bitmap.data + bmdoffset, vwidth - vwoffset, vheight, 720 * 2);
audio_cb(soundbuffer, audio_update(soundbuffer)); audio_cb(soundbuffer, audio_update(soundbuffer));
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated); environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated);