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Added an option to hide the SGB border when playing GameBoy games, as well as using the GameBoy's 10:9 aspect ratio for the 'Auto' and 'Pixel Perfect' (previously '8:9') core aspect ratio option when the border option is enabled

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This commit is contained in:
ds22x 2021-09-02 19:58:59 +02:00
parent 007a042a11
commit 7468ca11c4
3 changed files with 50 additions and 6 deletions
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23
bsnes/target-libretro/libretro.cpp
View File

@ -51,12 +51,17 @@ static double get_aspect_ratio()
{
double ratio;
if (aspect_ratio_mode == 0 && program->superFamicom.region == "NTSC")
if (aspect_ratio_mode == 0 && program->gameBoy.program && sgb_border_disabled == true)
ratio = 10.0/9.0;
else if (aspect_ratio_mode == 0 && program->superFamicom.region == "NTSC")
ratio = 1.306122;
else if (aspect_ratio_mode == 0 && program->superFamicom.region == "PAL")
ratio = 1.584216;
else if (aspect_ratio_mode == 1) // 8:7
ratio = 8.0/7.0;
else if (aspect_ratio_mode == 1) // 8:7 or 10:9 depending on whenever the SGB border is shown
if (program->gameBoy.program && sgb_border_disabled == true)
ratio = 10.0/9.0;
else
ratio = 8.0/7.0;
else if (aspect_ratio_mode == 2) // 4:3
return 4.0/3.0;
else if (aspect_ratio_mode == 3) // NTSC
@ -368,6 +373,18 @@ static void update_variables(void)
retro_pointer_superscope_reverse_buttons = false;
}
var.key = "bsnes_hide_sgb_border";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
if (strcmp(var.value, "ON") == 0)
sgb_border_disabled = true;
else if (strcmp(var.value, "OFF") == 0)
sgb_border_disabled = false;
}
}
void update_geometry(void)

13
bsnes/target-libretro/libretro_core_options.h
View File

@ -55,7 +55,7 @@ struct retro_core_option_definition option_defs_us[] = {
"Choose the preferred content aspect ratio. This will only apply when RetroArch's aspect ratio is set to 'Core provided' in the Video settings.",
{
{ "Auto", NULL },
{ "8:7", NULL },
{ "8:7", "Pixel Perfect" },
{ "4:3", NULL },
{ "NTSC", NULL },
{ "PAL", NULL },
@ -502,6 +502,17 @@ struct retro_core_option_definition option_defs_us[] = {
},
"OFF"
},
{
"bsnes_hide_sgb_border",
"Hide SGB Border",
"Allows hiding the border when playing Super GameBoy games.",
{
{ "ON", "enabled" },
{ "OFF", "disabled" },
{ NULL, NULL },
},
"OFF"
},
{ NULL, NULL, NULL, {{0}}, NULL },
};

20
bsnes/target-libretro/program.cpp
View File

@ -24,6 +24,8 @@ using namespace nall;
static Emulator::Interface *emulator;
static bool sgb_border_disabled = false;
// Touchscreen Lightgun Support
static const int POINTER_PRESSED_CYCLES = 4; // For touchscreen sensitivity
struct retro_pointer_state
@ -385,7 +387,14 @@ auto Program::videoFrame(const uint16* data, uint pitch, uint width, uint height
if (!overscan)
{
uint multiplier = height / 240;
data += 8 * (pitch >> 1) * multiplier;
if ((sgb_border_disabled) && (program->gameBoy.program))
{
data += 47 * (pitch >> 1) * multiplier;
}
else
{
data += 8 * (pitch >> 1) * multiplier;
}
if (program->gameBoy.program)
{
height -= 16.1 * multiplier;
@ -395,7 +404,14 @@ auto Program::videoFrame(const uint16* data, uint pitch, uint width, uint height
height -= 16 * multiplier;
}
}
video_cb(data, width, height, pitch);
if ((!overscan) & (sgb_border_disabled) && (program->gameBoy.program))
{
video_cb(data + 48, width - 96, height - 79, pitch);
}
else
{
video_cb(data, width, height, pitch);
}
}
// Double the fun!