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[libretro] added core options for inverting MD Mouse Y-axis (needed by Populous II) & showing lightgun crosshair

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This commit is contained in:
EkeEke 2014-08-17 18:37:52 +02:00
parent bb1984a12d
commit c9cf7954dc
2 changed files with 33 additions and 1 deletions
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32
libretro/libretro.c
View File

@ -222,7 +222,10 @@ void osd_input_update(void)
case DEVICE_MOUSE:
{
input.analog[i][0] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
input.analog[i][1] = -input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
if (config.invert_mouse)
input.analog[i][1] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
else
input.analog[i][1] = -input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
if (input.analog[i][0] < -255)
input.analog[i][0] = -255;
@ -251,6 +254,13 @@ void osd_input_update(void)
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * bitmap.viewport.w) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * bitmap.viewport.h) / 0xfffe;
if (config.gun_cursor)
{
uint16_t *ptr = (uint16_t *)bitmap.data + ((bitmap.viewport.y + input.analog[i][1]) * bitmap.width) + input.analog[i][0] + bitmap.viewport.x;
ptr[-3*bitmap.width] = ptr[-bitmap.width] = ptr[bitmap.width] = ptr[3*bitmap.width] = ptr[-3] = ptr[-1] = ptr[1] = ptr[3] = (i & 1) ? 0xf800 : 0x001f;
ptr[-2*bitmap.width] = ptr[0] = ptr[2*bitmap.width] = ptr[-2] = ptr[2] = 0xffff;
}
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER))
temp |= INPUT_A;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TURBO))
@ -875,6 +885,24 @@ static void check_variables(void)
update_viewports = true;
}
var.key = "gun_cursor";
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
{
if (strcmp(var.value, "off") == 0)
config.gun_cursor = 0;
else
config.gun_cursor = 1;
}
var.key = "invert_mouse";
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
{
if (strcmp(var.value, "off") == 0)
config.invert_mouse = 0;
else
config.invert_mouse = 1;
}
if (reinit)
{
audio_init(44100, snd.frame_rate);
@ -913,6 +941,8 @@ void retro_set_environment(retro_environment_t cb)
{ "overscan", "Borders; disabled|top/bottom|left/right|full" },
{ "gg_extra", "Game Gear extended screen; disabled|enabled" },
{ "render", "Interlaced mode 2 output; single field|double field" },
{ "gun_cursor", "Show Lightgun crosshair; no|yes" },
{ "invert_mouse", "Invert Mouse Y-axis; no|yes" },
{ NULL, NULL },
};

2
libretro/osd.h
View File

@ -64,6 +64,8 @@ struct
uint8 gg_extra;
uint8 render;
t_input_config input[MAX_INPUTS];
uint8 invert_mouse;
uint8 gun_cursor;
} config;
extern char GG_ROM[256];