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opera-libretro/libretro_core_options.c
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Antonio SJ Musumeci 39bf0700c1 Fix streaming completion timing on CD-ROM reads and CLIO input DMA 
Wing Commander III - Heart of the Tiger (USA, Disc 1) could stall during
its credits or opening movies because streaming completion became visible
at the wrong boundaries.

Publish successful MEI READ_DATA status only after the final requested
byte has left the data FIFO. Reporting success as soon as one sector is
buffered prematurely ends Portfolio's read-ahead command, even while data
from the request remains unread.

Raise CLIO input-DMA completion and reload the next buffer when the final
sample is consumed, rather than waiting for another DSP read. Wing
Commander III can otherwise observe the end address and detach an audio
attachment whose completion has not fired. Once the instrument stops,
there is no further read to generate completion and playback waits
forever.

During investigation, stock-2x playback advanced through the previously
stuck credits and opening movie sequence to the interactive hangar. This
addresses the observed streaming stalls, not an exhaustive compatibility
claim for every gameplay or disc-transition path.

Also default CD-ROM speed to the stock 2x rate in both option definitions
and the missing-option fallback. This affects all titles using the
default; explicit unbounded and other saved speed selections remain
available and unchanged.
2026-10-22 21:45:34 -05:00

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#include "libopera/opera_bios.h"
#include "opera_lr_callbacks.h"
#include <file/file_path.h>
#include <libretro.h>
#include <libretro_core_options.h>
#include <retro_miscellaneous.h>
#include <stdlib.h>
#include <string.h>
/*
********************************
* Core Option Definitions
********************************
*/
/* RETRO_LANGUAGE_ENGLISH */
/* Default language:
* - All other languages must include the same keys and values
* - Will be used as a fallback in the event that frontend language
* is not available
* - Will be used as a fallback for any missing entries in
* frontend language definition */
static struct retro_core_option_v2_category option_cats_us[] =
{
{ "system", "System", NULL },
{ "video", "Video", NULL },
{ "audio", "Audio", NULL },
{ "input", "Input", NULL },
{ "advanced", "Advanced", NULL },
{ NULL, NULL, NULL },
};
static struct retro_core_option_v2_definition option_defs_us_v2[] =
{
{
"opera_bios",
"BIOS (rom1)",
NULL,
"Select system BIOS. Embedded Opera Boot is always available and is the default."
" Opera Boot in the system directory is available as a separate file-backed option."
" Other ROMs are listed only when present in the system directory and load from those files."
" Changes take effect at core start/restart.",
NULL,
"system",
{
{ NULL, NULL }, /* This is set dynamically */
},
NULL
},
{
"opera_font",
"Font (rom2)",
NULL,
"Select 'font rom'. Required by some Japanese games, otherwise optional."
" Only ROMs present in the system directory are listed."
" Changes take affect at core start/restart.",
NULL,
"system",
{
{ NULL, NULL }, /* This is set dynamically */
},
NULL
},
{
"opera_cpu_overclock",
"CPU Overclock",
NULL,
"Increase clock speed of the emulated 3DO's 12.5MHz ARM60 CPU."
" Dramatically improves frame rates in many games, but increases performance requirements and in some cases has no effect (or may cause glitches).",
NULL,
"advanced",
{
{ "0.5x ( 6.25Mhz)", NULL },
{ "0.6x ( 7.50Mhz)", NULL },
{ "0.7x ( 8.75Mhz)", NULL },
{ "0.8x (10.00Mhz)", NULL },
{ "0.9x (11.25Mhz)", NULL },
{ "1.0x (12.50Mhz)", NULL },
{ "1.1x (13.75Mhz)", NULL },
{ "1.2x (15.00Mhz)", NULL },
{ "1.5x (18.75Mhz)", NULL },
{ "1.6x (20.00Mhz)", NULL },
{ "1.8x (22.50Mhz)", NULL },
{ "2.0x (25.00Mhz)", NULL },
{ "3.0x (37.50Mhz)", NULL },
{ "4.0x (50.00Mhz)", NULL },
{ NULL, NULL },
},
"1.0x (12.50Mhz)"
},
{
"opera_mem_capacity",
"Memory Capacity",
NULL,
"Select the amount of DRAM and VRAM the system has."
" Intended for compatible homebrew; non-stock capacities require compatible BIOS and software."
" Changes take effect at core start/restart."
" !EXPERIMENTAL!",
NULL,
"advanced",
{
{ "21", "2MB DRAM; 1MB VRAM (stock)" },
{ "22", "2MB DRAM; 2MB VRAM" },
{ "41", "4MB DRAM; 1MB VRAM" },
{ "42", "4MB DRAM; 2MB VRAM" },
{ "81", "8MB DRAM; 1MB VRAM" },
{ "82", "8MB DRAM; 2MB VRAM" },
{ "E2", "14MB DRAM; 2MB VRAM" },
{ "F1", "15MB DRAM; 1MB VRAM" },
{ NULL, NULL },
},
"21"
},
{
"opera_random_seed",
"Random Number Generator Seed",
NULL,
"Select the initial seed for the emulated 3DO random number generators."
" Fixed seeds provide repeatable behavior for testing."
" Changes take effect after fully reinitializing the core.",
NULL,
"advanced",
{
{ "random", "Random (time-based)" },
{ "0x00000000", NULL },
{ "0x00000001", NULL },
{ "0xdeadbeef", NULL },
{ "0xcafebabe", NULL },
{ "0xfeedface", NULL },
{ "0xbaadf00d", NULL },
{ "0x8badf00d", NULL },
{ "0xdeadc0de", NULL },
{ "0xc001d00d", NULL },
{ "0x0badf00d", NULL },
{ "0x74726170", NULL },
{ "0x65786974", NULL },
{ NULL, NULL },
},
"random"
},
{
"opera_cd_speed",
"CD Speed",
NULL,
"Select the effective CD-ROM read speed."
" Warning: can expose timing issues in some titles. Particularly above 16x.",
NULL,
"system",
{
{ "unbounded", NULL },
{ "1x", " 1x - ~150KB/s" },
{ "2x", " 2x - ~300KB/s (stock)" },
{ "4x", " 4x - ~600KB/s" },
{ "8x", " 8x - ~1200KB/s" },
{ "16x", "16x - 2400KB/s" },
{ "24x", "24x - 3600KB/s" },
{ "32x", "32x - 4800KB/s" },
{ NULL, NULL },
},
"2x"
},
{
"opera_region",
"Region / Mode",
NULL,
"Select the resolution and field rate. NOTE: some EU games require a EU ROM.",
NULL,
"system",
{
{ "ntsc", "NTSC 320x240@60" },
{ "pal1", "PAL1 320x288@50" },
{ "pal2", "PAL2 384x288@50" },
{ NULL, NULL }
},
"ntsc"
},
{
"opera_vdlp_pixel_format",
"VDLP Pixel Format",
NULL,
"Select the pixel format to request from the runtime and convert to from the internal 16bpp format."
" Changes take affect at core start.",
NULL,
"video",
{
{ "0RGB1555", NULL },
{ "RGB565", NULL },
{ "XRGB8888", NULL }
},
"RGB565"
},
{
"opera_vdlp_bypass_clut",
"VDLP Bypass CLUT",
NULL,
"Force 3DO VDLP to bypass the game's CLUT (color lookup table). May result in incorrect colors but faster rendering.",
NULL,
"video",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL }
},
"disabled"
},
{
"opera_high_resolution",
"HiRes CEL Rendering",
NULL,
"Enabling this option causes CELs to be rendered at 2x the resolution into a 2x output framebuffer, increasing the fidelity of 3D models. Will not affect 2D games. Has a significant performance impact.",
NULL,
"video",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{
"opera_madam_matrix_engine",
"MADAM Matrix Engine",
NULL,
"'MADAM' is the 3DO's graphics accelerator. It contains a custom maths co-processor, used by the 3DO's CPU to offload matrix operations. This corresponds to running in 'Hardware' - but the 3DO could also utilise a built-in ARM 'Software' version of the MADAM matrix engine. 'Hardware' mode is the default, but it has been observed that some games run faster when forcing 'Software' mode."
" Changes take affect at core start/restart.",
NULL,
"advanced",
{
{ "hardware", "Hardware" },
{ "software", "Software" },
{ NULL, NULL },
},
"hardware"
},
{
"opera_swi_hle",
"OperaOS SWI HLE",
NULL,
"3DO games are built on top of Portfolio OS. Opera has high level emulation of certain OS functions. This HLE may improve performance in on certain games.",
NULL,
"advanced",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL }
},
"disabled"
},
#if defined(THREADED_DSP) && defined(HAVE_THREADS)
{
"opera_dsp_threaded",
"Threaded DSP",
NULL,
"Run the DSP (audio processor) on a separate CPU thread."
" Improves performance on multi-core systems."
" !EXPERIMENTAL!",
NULL,
"audio",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
#endif
{
"opera_nvram_storage",
"NVRAM Storage",
NULL,
"Selects whether NVRAM saves should be created per-game or as a single NVRAM file shared between all games.",
NULL,
"system",
{
{ "per game", "Per Game" },
{ "shared", "Shared" },
{ NULL, NULL },
},
"per game"
},
{
"opera_nvram_version",
"NVRAM Version",
NULL,
"Select the NVRAM version.",
NULL,
"system",
{
{ "0", NULL },
{ "1", NULL },
{ "2", NULL },
{ "3", NULL },
{ "4", NULL },
{ "5", NULL },
{ "6", NULL },
{ "7", NULL },
{ "8", NULL },
{ "9", NULL },
{ NULL, NULL },
},
"0"
},
{
"opera_active_devices",
"Active Input Devices",
NULL,
"Sets the maximum number of emulated input devices. Certain games, particularly when using >16x CDROM speed and have more than 1 emulated controller, causes content to ignore gamepad input or crash. Setting 'Active Input Devices' to 1 can be workaround for this issue on some titles.",
NULL,
"input",
{
{ "0", NULL },
{ "1", NULL },
{ "2", NULL },
{ "3", NULL },
{ "4", NULL },
{ "5", NULL },
{ "6", NULL },
{ "7", NULL },
{ "8", NULL },
{ NULL, NULL },
},
"1"
},
{
"opera_hide_lightgun_crosshairs",
"Hide Lightgun Crosshairs",
NULL,
"Hides lightgun crosshairs for all players.",
NULL,
"input",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{
"opera_kprint",
"Debug Output",
NULL,
"Print 3DO debug port output to stderr. Only really useful to 3DO homebrew developers.",
NULL,
"advanced",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{ NULL, NULL, NULL, NULL, NULL, NULL, {{0}}, NULL },
};
static struct retro_core_options_v2 core_options_us = {
option_cats_us,
option_defs_us_v2
};
static struct retro_core_option_definition option_defs_us[] =
{
{
"opera_bios",
"BIOS (rom1)",
"Select system BIOS. Embedded Opera Boot is always available and is the default."
" Opera Boot in the system directory is available as a separate file-backed option."
" Other ROMs are listed only when present in the system directory and load from those files."
" Changes take effect at core start/restart.",
{
{ NULL, NULL }, /* This is set dynamically */
},
NULL
},
{
"opera_font",
"Font (rom2)",
"Select 'font rom'. Required by some Japanese games, otherwise optional."
" Only ROMs present in the system directory are listed."
" Changes take affect at core start/restart.",
{
{ NULL, NULL }, /* This is set dynamically */
},
NULL
},
{
"opera_cpu_overclock",
"CPU Overclock",
"Increase clock speed of the emulated 3DO's 12.5MHz ARM60 CPU."
" Dramatically improves frame rates in many games, but increases performance requirements and in some cases has no effect (or may cause glitches).",
{
{ "0.5x ( 6.25Mhz)", NULL },
{ "0.6x ( 7.50Mhz)", NULL },
{ "0.7x ( 8.75Mhz)", NULL },
{ "0.9x (11.25Mhz)", NULL },
{ "0.8x (10.00Mhz)", NULL },
{ "1.0x (12.50Mhz)", NULL },
{ "1.1x (13.75Mhz)", NULL },
{ "1.2x (15.00Mhz)", NULL },
{ "1.5x (18.75Mhz)", NULL },
{ "1.6x (20.00Mhz)", NULL },
{ "1.8x (22.50Mhz)", NULL },
{ "2.0x (25.00Mhz)", NULL },
{ "3.0x (37.50Mhz)", NULL },
{ "4.0x (50.00Mhz)", NULL },
{ NULL, NULL },
},
"1.0x (12.50Mhz)"
},
{
"opera_mem_capacity",
"Memory Capacity",
"Select the amount of DRAM and VRAM the system has."
" Intended for compatible homebrew; non-stock capacities require compatible BIOS and software."
" Changes take effect at core start/restart."
" !EXPERIMENTAL!",
{
{ "21", "2MB DRAM; 1MB VRAM (stock)" },
{ "22", "2MB DRAM; 2MB VRAM" },
{ "41", "4MB DRAM; 1MB VRAM" },
{ "42", "4MB DRAM; 2MB VRAM" },
{ "81", "8MB DRAM; 1MB VRAM" },
{ "82", "8MB DRAM; 2MB VRAM" },
{ "E2", "14MB DRAM; 2MB VRAM" },
{ "F1", "15MB DRAM; 1MB VRAM" },
{ NULL, NULL },
},
"21"
},
{
"opera_random_seed",
"Random Number Generator Seed",
"Select the initial seed for the emulated 3DO random number generators."
" Fixed seeds provide repeatable behavior for testing."
" Changes take effect after fully reinitializing the core.",
{
{ "random", "Random (time-based)" },
{ "0x00000000", NULL },
{ "0x00000001", NULL },
{ "0xdeadbeef", NULL },
{ "0xcafebabe", NULL },
{ "0xfeedface", NULL },
{ "0xbaadf00d", NULL },
{ "0x8badf00d", NULL },
{ "0xdeadc0de", NULL },
{ "0xc001d00d", NULL },
{ "0x0badf00d", NULL },
{ "0x74726170", NULL },
{ "0x65786974", NULL },
{ NULL, NULL },
},
"random"
},
{
"opera_cd_speed",
"CD Speed",
"Select the effective CD-ROM read speed."
" Warning: can expose timing issues in some titles. Particularly above 16x.",
{
{ "unbounded", NULL },
{ "1x", " 1x - ~150KB/s" },
{ "2x", " 2x - ~300KB/s (stock)" },
{ "4x", " 4x - ~600KB/s" },
{ "8x", " 8x - ~1200KB/s" },
{ "16x", "16x - 2400KB/s" },
{ "24x", "24x - 3600KB/s" },
{ "32x", "32x - 4800KB/s" },
{ NULL, NULL },
},
"2x"
},
{
"opera_region",
"Region / Mode",
"Select the resolution and field rate. NOTE: some EU games require a EU ROM.",
{
{ "ntsc", "NTSC 320x240@60" },
{ "pal1", "PAL1 320x288@50" },
{ "pal2", "PAL2 384x288@50" },
{ NULL, NULL }
},
"ntsc"
},
{
"opera_vdlp_pixel_format",
"VDLP Pixel Format",
"Select the pixel format to request from the runtime and convert to from the internal 16bpp format."
" Changes take affect at core start.",
{
{ "0RGB1555", NULL },
{ "RGB565", NULL },
{ "XRGB8888", NULL }
},
"RGB565"
},
{
"opera_vdlp_bypass_clut",
"VDLP Bypass CLUT",
"Force 3DO VDLP to bypass the game's CLUT (color lookup table). May result in incorrect colors but faster rendering.",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL }
},
"disabled"
},
{
"opera_high_resolution",
"HiRes CEL Rendering",
"Enabling this option causes CELs to be rendered at 2x the resolution into a 2x output framebuffer, increasing the fidelity of 3D models. Will not affect 2D games. Has a significant performance impact.",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{
"opera_madam_matrix_engine",
"MADAM Matrix Engine",
"'MADAM' is the 3DO's graphics accelerator. It contains a custom maths co-processor, used by the 3DO's CPU to offload matrix operations. This corresponds to running in 'Hardware' - but the 3DO could also utilise a built-in ARM 'Software' version of the MADAM matrix engine. 'Hardware' mode is the default, but it has been observed that some games run faster when forcing 'Software' mode."
" Changes take affect at core start/restart.",
{
{ "hardware", "Hardware" },
{ "software", "Software" },
{ NULL, NULL },
},
"hardware"
},
{
"opera_swi_hle",
"OperaOS SWI HLE",
"3DO games are built on top of Portfolio OS. Opera has high level emulation of certain OS functions. This HLE may improve performance in on certain games.",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL }
},
"disabled"
},
#if defined(THREADED_DSP) && defined(HAVE_THREADS)
{
"opera_dsp_threaded",
"Threaded DSP",
"Run the DSP (audio processor) on a separate CPU thread."
" Improves performance on multi-core systems."
" !EXPERIMENTAL!",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
#endif
{
"opera_nvram_storage",
"NVRAM Storage",
"Selects whether NVRAM saves should be created per-game or as a single NVRAM file shared between all games.",
{
{ "per game", "Per Game" },
{ "shared", "Shared" },
{ NULL, NULL },
},
"per game"
},
{
"opera_nvram_version",
"NVRAM Version",
"Select the NVRAM version.",
{
{ "0", NULL },
{ "1", NULL },
{ "2", NULL },
{ "3", NULL },
{ "4", NULL },
{ "5", NULL },
{ "6", NULL },
{ "7", NULL },
{ "8", NULL },
{ "9", NULL },
{ NULL, NULL },
},
"0"
},
{
"opera_active_devices",
"Active Input Devices",
"Sets the maximum number of emulated input devices. There exists a bug (perhaps in Opera itself, but possibly in certain games) where having more than 1 emulated controller causes content to ignore gamepad input. Setting 'Active Input Devices' to 1 provides a workaround for this issue.",
{
{ "0", NULL },
{ "1", NULL },
{ "2", NULL },
{ "3", NULL },
{ "4", NULL },
{ "5", NULL },
{ "6", NULL },
{ "7", NULL },
{ "8", NULL },
{ NULL, NULL },
},
"1"
},
{
"opera_hide_lightgun_crosshairs",
"Hide Lightgun Crosshairs",
"Hides lightgun crosshairs for all players.",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{
"opera_kprint",
"Debug Output",
"Print 3DO debug port output to stderr. Only really useful to 3DO homebrew developers.",
{
{ "disabled", NULL },
{ "enabled", NULL },
{ NULL, NULL },
},
"disabled"
},
{ NULL, NULL, NULL, {{0}}, NULL },
};
/* RETRO_LANGUAGE_JAPANESE */
/* RETRO_LANGUAGE_FRENCH */
/* RETRO_LANGUAGE_SPANISH */
/* RETRO_LANGUAGE_GERMAN */
/* RETRO_LANGUAGE_ITALIAN */
/* RETRO_LANGUAGE_DUTCH */
/* RETRO_LANGUAGE_PORTUGUESE_BRAZIL */
/* RETRO_LANGUAGE_PORTUGUESE_PORTUGAL */
/* RETRO_LANGUAGE_RUSSIAN */
/* RETRO_LANGUAGE_KOREAN */
/* RETRO_LANGUAGE_CHINESE_TRADITIONAL */
/* RETRO_LANGUAGE_CHINESE_SIMPLIFIED */
/* RETRO_LANGUAGE_ESPERANTO */
/* RETRO_LANGUAGE_POLISH */
/* RETRO_LANGUAGE_VIETNAMESE */
/* RETRO_LANGUAGE_ARABIC */
/* RETRO_LANGUAGE_GREEK */
/* RETRO_LANGUAGE_TURKISH */
/*
********************************
* Language Mapping
********************************
*/
static struct retro_core_options_v2 *option_defs_intl_v2[RETRO_LANGUAGE_LAST] = {
&core_options_us, /* RETRO_LANGUAGE_ENGLISH */
NULL, /* RETRO_LANGUAGE_JAPANESE */
NULL, /* RETRO_LANGUAGE_FRENCH */
NULL, /* RETRO_LANGUAGE_SPANISH */
NULL, /* RETRO_LANGUAGE_GERMAN */
NULL, /* RETRO_LANGUAGE_ITALIAN */
NULL, /* RETRO_LANGUAGE_DUTCH */
NULL, /* RETRO_LANGUAGE_PORTUGUESE_BRAZIL */
NULL, /* RETRO_LANGUAGE_PORTUGUESE_PORTUGAL */
NULL, /* RETRO_LANGUAGE_RUSSIAN */
NULL, /* RETRO_LANGUAGE_KOREAN */
NULL, /* RETRO_LANGUAGE_CHINESE_TRADITIONAL */
NULL, /* RETRO_LANGUAGE_CHINESE_SIMPLIFIED */
NULL, /* RETRO_LANGUAGE_ESPERANTO */
NULL, /* RETRO_LANGUAGE_POLISH */
NULL, /* RETRO_LANGUAGE_VIETNAMESE */
NULL, /* RETRO_LANGUAGE_ARABIC */
NULL, /* RETRO_LANGUAGE_GREEK */
NULL, /* RETRO_LANGUAGE_TURKISH */
};
static struct retro_core_option_definition *option_defs_intl[RETRO_LANGUAGE_LAST] = {
option_defs_us, /* RETRO_LANGUAGE_ENGLISH */
NULL, /* RETRO_LANGUAGE_JAPANESE */
NULL, /* RETRO_LANGUAGE_FRENCH */
NULL, /* RETRO_LANGUAGE_SPANISH */
NULL, /* RETRO_LANGUAGE_GERMAN */
NULL, /* RETRO_LANGUAGE_ITALIAN */
NULL, /* RETRO_LANGUAGE_DUTCH */
NULL, /* RETRO_LANGUAGE_PORTUGUESE_BRAZIL */
NULL, /* RETRO_LANGUAGE_PORTUGUESE_PORTUGAL */
NULL, /* RETRO_LANGUAGE_RUSSIAN */
NULL, /* RETRO_LANGUAGE_KOREAN */
NULL, /* RETRO_LANGUAGE_CHINESE_TRADITIONAL */
NULL, /* RETRO_LANGUAGE_CHINESE_SIMPLIFIED */
NULL, /* RETRO_LANGUAGE_ESPERANTO */
NULL, /* RETRO_LANGUAGE_POLISH */
NULL, /* RETRO_LANGUAGE_VIETNAMESE */
NULL, /* RETRO_LANGUAGE_ARABIC */
NULL, /* RETRO_LANGUAGE_GREEK */
NULL, /* RETRO_LANGUAGE_TURKISH */
};
/*
********************************
* Functions
********************************
*/
static const char bios_disabled_str[] = "disabled";
static
bool
file_exists_in_system_directory(const char *filename)
{
int ret;
char fullpath[PATH_MAX_LENGTH];
const char *system_path = NULL;
if(!retro_environment_cb)
return false;
ret = retro_environment_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &system_path);
if((ret == 0) || !system_path)
return false;
fullpath[0] = '\0';
fill_pathname_join(fullpath, system_path, filename, sizeof(fullpath));
return path_is_valid(fullpath);
}
static
const
char *
set_bios_values(struct retro_core_option_value *values_)
{
size_t i = 1;
const opera_bios_t *bios;
if(values_ == NULL)
return NULL;
bios = opera_bios_builtin();
values_[0].value = OPERA_BIOS_BUILTIN_ID;
values_[0].label = bios->name;
for(bios = opera_bios_begin(); bios != opera_bios_end(); bios++)
{
if(bios == opera_bios_builtin())
continue;
if(i >= (RETRO_NUM_CORE_OPTION_VALUES_MAX - 1))
break;
if(!file_exists_in_system_directory(bios->filename))
continue;
values_[i].value = bios->filename;
values_[i].label = bios->name;
i++;
}
values_[i].value = NULL;
values_[i].label = NULL;
return values_[0].value;
}
static
const char *
set_font_values(struct retro_core_option_value *values)
{
size_t i = 0;
const opera_bios_t *font = NULL;
if(!values)
return NULL;
/* First value is always 'disabled' */
values[i].value = bios_disabled_str;
values[i].label = NULL;
i++;
/* Loop through all recognised font files */
for(font = opera_bios_font_begin(); font != opera_bios_font_end(); font++)
{
/* Sanity check */
if(i >= RETRO_NUM_CORE_OPTION_VALUES_MAX - 1)
break;
if(file_exists_in_system_directory(font->filename))
{
values[i].value = font->filename;
values[i].label = font->name;
i++;
}
}
/* Add proper null termination */
values[i].value = NULL;
values[i].label = NULL;
return values[0].value;
}
void
libretro_init_core_options(void)
{
size_t i = 0;
/* Loop over options until we find the entries
* with dynamic values */
while (true)
{
const char *key = option_defs_us[i].key;
struct retro_core_option_value *values = option_defs_us[i].values;
if(key)
{
if(strcmp(key, "opera_bios") == 0)
option_defs_us[i].default_value = set_bios_values(values);
else if(strcmp(key, "opera_font") == 0)
option_defs_us[i].default_value = set_font_values(values);
i++;
}
else
break;
}
i = 0;
while (true)
{
const char *key = option_defs_us_v2[i].key;
struct retro_core_option_value *values = option_defs_us_v2[i].values;
if(key)
{
if(strcmp(key, "opera_bios") == 0)
option_defs_us_v2[i].default_value = set_bios_values(values);
else if(strcmp(key, "opera_font") == 0)
option_defs_us_v2[i].default_value = set_font_values(values);
i++;
}
else
break;
}
}
void
libretro_set_core_options(void)
{
unsigned version = 0;
if(!retro_environment_cb)
return;
if(retro_environment_cb(RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION, &version))
{
if(version >= 2)
{
struct retro_core_options_v2_intl core_options_intl;
unsigned language = 0;
core_options_intl.us = &core_options_us;
core_options_intl.local = NULL;
if(retro_environment_cb(RETRO_ENVIRONMENT_GET_LANGUAGE, &language) &&
(language < RETRO_LANGUAGE_LAST) && (language != RETRO_LANGUAGE_ENGLISH))
core_options_intl.local = option_defs_intl_v2[language];
retro_environment_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2_INTL, &core_options_intl);
return;
}
else if(version >= 1)
{
struct retro_core_options_intl core_options_intl;
unsigned language = 0;
core_options_intl.us = option_defs_us;
core_options_intl.local = NULL;
if(retro_environment_cb(RETRO_ENVIRONMENT_GET_LANGUAGE, &language) &&
(language < RETRO_LANGUAGE_LAST) && (language != RETRO_LANGUAGE_ENGLISH))
core_options_intl.local = option_defs_intl[language];
retro_environment_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL, &core_options_intl);
return;
}
}
{
size_t i;
size_t num_options = 0;
struct retro_variable *variables = NULL;
char **values_buf = NULL;
/* Determine number of options */
while (true)
{
if(option_defs_us[num_options].key)
num_options++;
else
break;
}
/* Allocate arrays */
variables = (struct retro_variable *)calloc(num_options + 1, sizeof(struct retro_variable));
values_buf = (char **)calloc(num_options, sizeof(char *));
if(!variables || !values_buf)
goto error;
/* Copy parameters from option_defs_us array */
for (i = 0; i < num_options; i++)
{
const char *key = option_defs_us[i].key;
const char *desc = option_defs_us[i].desc;
const char *default_value = option_defs_us[i].default_value;
struct retro_core_option_value *values = option_defs_us[i].values;
size_t buf_len = 3;
size_t default_index = 0;
values_buf[i] = NULL;
if(desc)
{
size_t num_values = 0;
/* Determine number of values */
while (true)
{
if(values[num_values].value)
{
/* Check if this is the default value */
if(default_value)
if(strcmp(values[num_values].value, default_value) == 0)
default_index = num_values;
buf_len += strlen(values[num_values].value);
num_values++;
}
else
break;
}
/* Build values string
* > Note: Opera is unusual in that we have to
* support core options with only one value
* (the number of 'opera_bios' and 'opera_font'
* options depends upon the number of files
* present in the user's system directory...) */
if(num_values > 0)
{
size_t j;
buf_len += num_values - 1;
buf_len += strlen(desc);
values_buf[i] = (char *)calloc(buf_len, sizeof(char));
if(!values_buf[i])
goto error;
strcpy(values_buf[i], desc);
strcat(values_buf[i], "; ");
/* Default value goes first */
strcat(values_buf[i], values[default_index].value);
/* Add remaining values */
for (j = 0; j < num_values; j++)
{
if(j != default_index)
{
strcat(values_buf[i], "|");
strcat(values_buf[i], values[j].value);
}
}
}
}
variables[i].key = key;
variables[i].value = values_buf[i];
}
/* Set variables */
retro_environment_cb(RETRO_ENVIRONMENT_SET_VARIABLES, variables);
error:
/* Clean up */
if(values_buf)
{
for (i = 0; i < num_options; i++)
{
if(values_buf[i])
{
free(values_buf[i]);
values_buf[i] = NULL;
}
}
free(values_buf);
values_buf = NULL;
}
if(variables)
{
free(variables);
variables = NULL;
}
}
}
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