mirror of https://github.com/snes9xgit/snes9x.git
libretro: merge some changes from libretro repository
This commit is contained in:
OV2
parent
32f70fa38e
commit
1e8c562d50
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@ -38,6 +38,12 @@
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#define RETRO_GAME_TYPE_SUFAMI_TURBO 0x103
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#define RETRO_GAME_TYPE_SUPER_GAME_BOY 0x104
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#define SNES_4_3 4.0f / 3.0f
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#define SNES_8_7 8.0f / 7.0f
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char g_rom_dir[PATH_MAX];
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char g_basename[PATH_MAX];
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static retro_log_printf_t log_cb = NULL;
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static retro_video_refresh_t video_cb = NULL;
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static retro_audio_sample_t audio_cb = NULL;
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@ -45,6 +51,40 @@ static retro_audio_sample_batch_t audio_batch_cb = NULL;
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static retro_input_poll_t poll_cb = NULL;
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static retro_input_state_t input_state_cb = NULL;
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static void extract_basename(char *buf, const char *path, size_t size)
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{
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const char *base = strrchr(path, '/');
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if (!base)
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base = strrchr(path, '\\');
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if (!base)
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base = path;
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if (*base == '\\' || *base == '/')
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base++;
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strncpy(buf, base, size - 1);
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buf[size - 1] = '\0';
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char *ext = strrchr(buf, '.');
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if (ext)
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*ext = '\0';
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}
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static void extract_directory(char *buf, const char *path, size_t size)
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{
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strncpy(buf, path, size - 1);
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buf[size - 1] = '\0';
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char *base = strrchr(buf, '/');
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if (!base)
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base = strrchr(buf, '\\');
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if (base)
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*base = '\0';
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else
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buf[0] = '\0';
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}
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void retro_set_video_refresh(retro_video_refresh_t cb)
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{
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video_cb = cb;
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@ -70,36 +110,51 @@ void retro_set_input_state(retro_input_state_t cb)
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input_state_cb = cb;
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}
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enum overscan_mode {
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OVERSCAN_CROP_ON,
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OVERSCAN_CROP_OFF,
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OVERSCAN_CROP_AUTO
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};
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enum aspect_mode {
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ASPECT_RATIO_4_3,
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ASPECT_RATIO_8_7,
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ASPECT_RATIO_NTSC,
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ASPECT_RATIO_PAL,
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ASPECT_RATIO_AUTO
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};
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static retro_environment_t environ_cb;
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static bool use_overscan = false;
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static overscan_mode crop_overscan_mode = OVERSCAN_CROP_ON; // default to crop
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static aspect_mode aspect_ratio_mode = ASPECT_RATIO_4_3; // default to 4:3
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static bool rom_loaded = false;
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void retro_set_environment(retro_environment_t cb)
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{
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environ_cb = cb;
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const struct retro_variable variables[] = {
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struct retro_variable variables[] = {
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// These variable names and possible values constitute an ABI with ZMZ (ZSNES Libretro player).
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// Changing "Show layer 1" is fine, but don't change "layer_1"/etc or the possible values ("Yes|No").
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// Adding more variables and rearranging them is safe.
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{ "snes9x_layer_1", "Show layer 1; Yes|No" },
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{ "snes9x_layer_2", "Show layer 2; Yes|No" },
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{ "snes9x_layer_3", "Show layer 3; Yes|No" },
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{ "snes9x_layer_4", "Show layer 4; Yes|No" },
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{ "snes9x_layer_5", "Show sprite layer; Yes|No" },
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{ "snes9x_gfx_clip", "Enable graphic clip windows; Yes|No" },
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{ "snes9x_gfx_transp", "Enable transparency effects; Yes|No" },
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{ "snes9x_sndchan_1", "Enable sound channel 1; Yes|No" },
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{ "snes9x_sndchan_2", "Enable sound channel 2; Yes|No" },
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{ "snes9x_sndchan_3", "Enable sound channel 3; Yes|No" },
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{ "snes9x_sndchan_4", "Enable sound channel 4; Yes|No" },
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{ "snes9x_sndchan_5", "Enable sound channel 5; Yes|No" },
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{ "snes9x_sndchan_6", "Enable sound channel 6; Yes|No" },
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{ "snes9x_sndchan_7", "Enable sound channel 7; Yes|No" },
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{ "snes9x_sndchan_8", "Enable sound channel 8; Yes|No" },
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{ "snes9x_layer_1", "Show layer 1; enabled|disabled" },
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{ "snes9x_layer_2", "Show layer 2; enabled|disabled" },
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{ "snes9x_layer_3", "Show layer 3; enabled|disabled" },
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{ "snes9x_layer_4", "Show layer 4; enabled|disabled" },
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{ "snes9x_layer_5", "Show sprite layer; enabled|disabled" },
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{ "snes9x_gfx_clip", "Enable graphic clip windows; enabled|disabled" },
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{ "snes9x_gfx_transp", "Enable transparency effects; enabled|disabled" },
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{ "snes9x_sndchan_1", "Enable sound channel 1; enabled|disabled" },
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{ "snes9x_sndchan_2", "Enable sound channel 2; enabled|disabled" },
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{ "snes9x_sndchan_3", "Enable sound channel 3; enabled|disabled" },
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{ "snes9x_sndchan_4", "Enable sound channel 4; enabled|disabled" },
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{ "snes9x_sndchan_5", "Enable sound channel 5; enabled|disabled" },
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{ "snes9x_sndchan_6", "Enable sound channel 6; enabled|disabled" },
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{ "snes9x_sndchan_7", "Enable sound channel 7; enabled|disabled" },
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{ "snes9x_sndchan_8", "Enable sound channel 8; enabled|disabled" },
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{ "snes9x_overscan", "Crop overscan; enabled|disabled|auto" },
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{ "snes9x_aspect", "Preferred aspect ratio; 4:3|8:7|auto|ntsc|pal" },
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{ NULL, NULL },
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};
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environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)variables);
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environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, variables);
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const struct retro_controller_description port_1[] = {
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{ "SNES Joypad", RETRO_DEVICE_JOYPAD },
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@ -124,8 +179,16 @@ void retro_set_environment(retro_environment_t cb)
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environ_cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)ports);
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}
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void update_geometry()
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{
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struct retro_system_av_info av_info;
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retro_get_system_av_info(&av_info);
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environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
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}
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static void update_variables(void)
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{
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bool geometry_update = false;
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char key[256];
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struct retro_variable var;
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@ -137,34 +200,78 @@ static void update_variables(void)
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{
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key[strlen("snes9x_sndchan_")]='1'+i;
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var.value=NULL;
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && var.value[0]=='N') disabled_channels|=1<<i;
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && !strcmp("disabled", var.value))
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disabled_channels|=1<<i;
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}
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S9xSetSoundControl(disabled_channels^0xFF);
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int disabled_layers=0;
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strcpy(key, "snes9x_layer_x");
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for (int i=0;i<5;i++)
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{
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key[strlen("snes9x_layer_")]='1'+i;
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var.value=NULL;
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && var.value[0]=='N') disabled_layers|=1<<i;
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && !strcmp("disabled", var.value))
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disabled_layers|=1<<i;
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}
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Settings.BG_Forced=disabled_layers;
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//for some reason, Transparency seems to control both the fixed color and the windowing registers?
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var.key="snes9x_gfx_clip";
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var.value=NULL;
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Settings.DisableGraphicWindows=(environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && var.value[0]=='N');
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Settings.DisableGraphicWindows=(environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && !strcmp("disabled", var.value));
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var.key="snes9x_gfx_transp";
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var.value=NULL;
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Settings.Transparency=!(environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && var.value[0]=='N');
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Settings.Transparency=!(environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && !strcmp("disabled", var.value));
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var.key = "snes9x_overscan";
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
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{
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overscan_mode newval = OVERSCAN_CROP_AUTO;
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if (strcmp(var.value, "enabled") == 0)
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newval = OVERSCAN_CROP_ON;
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else if (strcmp(var.value, "disabled") == 0)
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newval = OVERSCAN_CROP_OFF;
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if (newval != crop_overscan_mode)
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{
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crop_overscan_mode = newval;
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geometry_update = true;
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}
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}
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var.key = "snes9x_aspect";
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
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{
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aspect_mode newval = ASPECT_RATIO_AUTO;
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if (strcmp(var.value, "ntsc") == 0)
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newval = ASPECT_RATIO_NTSC;
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else if (strcmp(var.value, "pal") == 0)
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newval = ASPECT_RATIO_PAL;
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else if (strcmp(var.value, "4:3") == 0)
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newval = ASPECT_RATIO_4_3;
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else if (strcmp(var.value, "8:7") == 0)
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newval = ASPECT_RATIO_8_7;
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if (newval != aspect_ratio_mode)
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{
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aspect_ratio_mode = newval;
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geometry_update = true;
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}
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}
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if (geometry_update)
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update_geometry();
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}
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static void S9xAudioCallback(void*)
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{
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// Just pick a big buffer. We won't use it all.
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static int16_t audio_buf[0x10000];
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static int16_t audio_buf[0x20000];
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S9xFinalizeSamples();
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size_t avail = S9xGetSampleCount();
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@ -183,15 +290,54 @@ void retro_get_system_info(struct retro_system_info *info)
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info->block_extract = false;
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}
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float get_aspect_ratio(unsigned width, unsigned height)
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{
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if (aspect_ratio_mode == ASPECT_RATIO_4_3)
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{
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return SNES_4_3;
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}
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else if (aspect_ratio_mode == ASPECT_RATIO_8_7)
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{
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return SNES_8_7;
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}
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// OV2: not sure if these really make sense - NTSC is similar to 4:3, PAL looks weird
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float sample_frequency_ntsc = 135000000.0 / 11.0;
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float sample_frequency_pal = 14750000.0;
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float sample_freq = retro_get_region() == RETRO_REGION_NTSC ? sample_frequency_ntsc : sample_frequency_pal;
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float dot_rate = SNES::cpu.frequency / 4.0;
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if (aspect_ratio_mode == ASPECT_RATIO_NTSC) // ntsc
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{
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sample_freq = sample_frequency_ntsc;
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dot_rate = NTSC_MASTER_CLOCK / 4.0;
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}
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else if (aspect_ratio_mode == ASPECT_RATIO_PAL) // pal
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{
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sample_freq = sample_frequency_pal;
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dot_rate = PAL_MASTER_CLOCK / 4.0;
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}
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float par = sample_freq / 2.0 / dot_rate;
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return (float)width * par / (float)height;
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}
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void retro_get_system_av_info(struct retro_system_av_info *info)
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{
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memset(info,0,sizeof(retro_system_av_info));
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unsigned width = SNES_WIDTH;
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unsigned height = PPU.ScreenHeight;
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if (crop_overscan_mode == OVERSCAN_CROP_ON)
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height = SNES_HEIGHT;
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else if (crop_overscan_mode == OVERSCAN_CROP_OFF)
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height = SNES_HEIGHT_EXTENDED;
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info->geometry.base_width = SNES_WIDTH;
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info->geometry.base_height = use_overscan ? SNES_HEIGHT_EXTENDED : SNES_HEIGHT;
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info->geometry.base_width = width;
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info->geometry.base_height = height;
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info->geometry.max_width = MAX_SNES_WIDTH;
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info->geometry.max_height = MAX_SNES_HEIGHT;
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info->geometry.aspect_ratio = 4.0f / 3.0f;
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info->geometry.aspect_ratio = get_aspect_ratio(width, height);
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info->timing.sample_rate = 32040;
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info->timing.fps = retro_get_region() == RETRO_REGION_NTSC ? 21477272.0 / 357366.0 : 21281370.0 / 425568.0;
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}
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@ -252,29 +398,57 @@ void retro_cheat_reset()
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S9xApplyCheats();
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}
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void retro_cheat_set(unsigned index, bool enabled, const char *code)
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void retro_cheat_set(unsigned index, bool enabled, const char *codeline)
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{
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uint32 address;
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uint8 val;
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bool8 sram;
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uint8 bytes[3];//used only by GoldFinger, ignored for now
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char codeCopy[256];
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char* code;
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if (S9xGameGenieToRaw(code, address, val)!=NULL &&
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S9xProActionReplayToRaw(code, address, val)!=NULL &&
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S9xGoldFingerToRaw(code, address, sram, val, bytes)!=NULL)
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{ // bad code, ignore
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return;
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if (codeline == (char *)'\0') return;
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strcpy(codeCopy,codeline);
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code=strtok(codeCopy,"+,.; ");
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while (code != NULL) {
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//Convert GH RAW to PAR
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if (strlen(code)==9 && code[6]==':')
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{
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code[6]=code[7];
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code[7]=code[8];
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code[8]='\0';
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}
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if (S9xGameGenieToRaw(code, address, val)==NULL ||
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S9xProActionReplayToRaw(code, address, val)==NULL)
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{
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Cheat.c[Cheat.num_cheats].address = address;
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Cheat.c[Cheat.num_cheats].byte = val;
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Cheat.c[Cheat.num_cheats].enabled = enabled;
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Cheat.c[Cheat.num_cheats].saved = FALSE; // it'll be saved next time cheats run anyways
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Cheat.num_cheats++;
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}
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else if (S9xGoldFingerToRaw(code, address, sram, val, bytes)==NULL)
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{
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if (!sram)
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{
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for (int i=0;i<val;i++){
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Cheat.c[Cheat.num_cheats].address = address;
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Cheat.c[Cheat.num_cheats].byte = bytes[i];
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Cheat.c[Cheat.num_cheats].enabled = enabled;
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Cheat.c[Cheat.num_cheats].saved = FALSE; // it'll be saved next time cheats run anyways
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Cheat.num_cheats++;
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}
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}
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}
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else
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{
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printf("CHEAT: Failed to recognize %s\n",code);
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}
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code=strtok(NULL,"+,.; "); // bad code, ignore
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}
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if (index>Cheat.num_cheats) return; // cheat added in weird order, ignore
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if (index==Cheat.num_cheats) Cheat.num_cheats++;
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Cheat.c[index].address = address;
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Cheat.c[index].byte = val;
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Cheat.c[index].enabled = enabled;
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Cheat.c[index].saved = FALSE; // it'll be saved next time cheats run anyways
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Settings.ApplyCheats=true;
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S9xApplyCheats();
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}
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@ -356,17 +530,28 @@ static void init_descriptors(void)
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bool retro_load_game(const struct retro_game_info *game)
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{
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init_descriptors();
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update_variables();
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if(game->data == NULL && game->size == 0 && game->path != NULL)
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rom_loaded = Memory.LoadROM(game->path);
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else
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{
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if (game->path != NULL)
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{
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extract_basename(g_basename, game->path, sizeof(g_basename));
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extract_directory(g_rom_dir, game->path, sizeof(g_rom_dir));
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}
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rom_loaded = Memory.LoadROMMem((const uint8_t*)game->data ,game->size);
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}
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int pixel_format = RGB555;
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if(environ_cb) {
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pixel_format = RGB565;
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enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
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if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
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pixel_format = RGB555;
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pixel_format = RGB565;
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enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
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if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
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pixel_format = RGB555;
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}
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S9xGraphicsDeinit();
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S9xSetRenderPixelFormat(pixel_format);
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@ -384,7 +569,10 @@ void retro_unload_game(void)
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bool retro_load_game_special(unsigned game_type,
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const struct retro_game_info *info, size_t num_info) {
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init_descriptors();
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init_descriptors();
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update_variables();
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switch (game_type) {
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case RETRO_GAME_TYPE_BSX:
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@ -442,11 +630,6 @@ static void check_system_specs(void)
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void retro_init()
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{
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struct retro_log_callback log;
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if (environ_cb)
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{
|
||||
if (!environ_cb(RETRO_ENVIRONMENT_GET_OVERSCAN, &use_overscan))
|
||||
use_overscan = false;
|
||||
}
|
||||
|
||||
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
|
||||
log_cb = log.log;
|
||||
|
|
@ -491,7 +674,9 @@ void retro_init()
|
|||
exit(1);
|
||||
}
|
||||
|
||||
S9xInitSound(16, 0);
|
||||
|
||||
S9xInitSound(1000, 0);//just give it a 1 second buffer
|
||||
|
||||
S9xSetSoundMute(FALSE);
|
||||
S9xSetSamplesAvailableCallback(S9xAudioCallback, NULL);
|
||||
|
||||
|
|
@ -703,10 +888,15 @@ static void report_buttons()
|
|||
|
||||
void retro_run()
|
||||
{
|
||||
static uint16 height = PPU.ScreenHeight;
|
||||
bool updated = false;
|
||||
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
|
||||
update_variables();
|
||||
|
||||
if (height != PPU.ScreenHeight)
|
||||
{
|
||||
update_geometry();
|
||||
height = PPU.ScreenHeight;
|
||||
}
|
||||
poll_cb();
|
||||
report_buttons();
|
||||
S9xMainLoop();
|
||||
|
|
@ -810,7 +1000,7 @@ bool retro_unserialize(const void* data, size_t size)
|
|||
|
||||
bool8 S9xDeinitUpdate(int width, int height)
|
||||
{
|
||||
if (!use_overscan)
|
||||
if (crop_overscan_mode == OVERSCAN_CROP_ON)
|
||||
{
|
||||
if (height >= SNES_HEIGHT << 1)
|
||||
{
|
||||
|
|
@ -821,7 +1011,7 @@ bool8 S9xDeinitUpdate(int width, int height)
|
|||
height = SNES_HEIGHT;
|
||||
}
|
||||
}
|
||||
else
|
||||
else if (crop_overscan_mode == OVERSCAN_CROP_OFF)
|
||||
{
|
||||
if (height > SNES_HEIGHT_EXTENDED)
|
||||
{
|
||||
|
|
@ -850,8 +1040,38 @@ bool8 S9xContinueUpdate(int width, int height)
|
|||
void S9xParsePortConfig(ConfigFile&, int) {}
|
||||
void S9xSyncSpeed() {}
|
||||
const char* S9xStringInput(const char* in) { return in; }
|
||||
const char* S9xGetFilename(const char* in, s9x_getdirtype) { return in; }
|
||||
const char* S9xGetDirectory(s9x_getdirtype) { return ""; }
|
||||
|
||||
const char* S9xGetFilename(const char* in, s9x_getdirtype type)
|
||||
{
|
||||
static char newpath[2048];
|
||||
|
||||
newpath[0] = '\0';
|
||||
|
||||
switch (type)
|
||||
{
|
||||
case ROMFILENAME_DIR:
|
||||
snprintf(newpath, sizeof(newpath), "%s%c%s%s",
|
||||
g_rom_dir, SLASH_CHAR, g_basename, in);
|
||||
return newpath;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return in;
|
||||
}
|
||||
|
||||
const char* S9xGetDirectory(s9x_getdirtype type)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case ROMFILENAME_DIR:
|
||||
return g_rom_dir;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return "";
|
||||
}
|
||||
void S9xInitInputDevices() {}
|
||||
const char* S9xChooseFilename(unsigned char) { return ""; }
|
||||
void S9xHandlePortCommand(s9xcommand_t, short, short) {}
|
||||
|
|
|
|||
Loading…
Reference in New Issue