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Make core-provided aspect ratio into a core option

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This commit is contained in:
Monroe88 2016-05-21 01:33:59 -05:00
parent f630a20ae6
commit bd53db8be1
1 changed files with 16 additions and 1 deletions
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17
src/drivers/libretro/libretro.c
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@ -26,6 +26,9 @@
#include "libretro-common/include/streams/memory_stream.h"
#define NES_8_7_PAR (width * (8.0 / 7.0)) / height
#define NES_4_3 4.0 / 3.0
#if defined(_3DS)
void* linearMemAlign(size_t size, size_t alignment);
void linearFree(void* mem);
@ -38,6 +41,7 @@ static retro_audio_sample_batch_t audio_batch_cb = NULL;
static retro_environment_t environ_cb = NULL;
static bool use_overscan;
static bool use_raw_palette;
static bool use_par;
/* emulator-specific variables */
@ -549,6 +553,7 @@ void retro_set_environment(retro_environment_t cb)
{ "fceumm_nospritelimit", "No Sprite Limit; disabled|enabled" },
{ "fceumm_overclocking", "Overclocking; disabled|2x" },
{ "fceumm_overscan", "Crop Overscan; enabled|disabled" },
{ "fceumm_aspect", "Core-provided aspect ratio; 8:7 PAR|4:3" },
{ NULL, NULL },
};
@ -573,7 +578,7 @@ void retro_get_system_av_info(struct retro_system_av_info *info)
info->geometry.base_height = height;
info->geometry.max_width = width;
info->geometry.max_height = height;
info->geometry.aspect_ratio = (width * (8.0 / 7.0)) / height;
info->geometry.aspect_ratio = use_par ? NES_8_7_PAR : NES_4_3;
info->timing.sample_rate = 32050.0;
if (FSettings.PAL)
info->timing.fps = 838977920.0/16777215.0;
@ -793,6 +798,16 @@ static void check_variables(void)
use_overscan = true;
}
var.key = "fceumm_aspect";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "8:7 PAR"))
use_par = true;
else if(!strcmp(var.value, "4:3"))
use_par = false;
}
retro_get_system_av_info(&av_info);
environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
}