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Update libretro.c

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This commit is contained in:
twinaphex 2017-07-04 09:54:05 +02:00
parent 79d68979f0
commit 96898b82ee
1 changed files with 17 additions and 25 deletions
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42
libretro/libretro.c
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@ -741,33 +741,25 @@ static void extract_directory(char *buf, const char *path, size_t size)
static double calculate_display_aspect_ratio(void) static double calculate_display_aspect_ratio(void)
{ {
if (config.aspect_ratio == 0) double videosamplerate, dotrate;
{ bool is_h40 = false;
if ((system_hw == SYSTEM_GG || system_hw == SYSTEM_GGMS) && config.overscan == 0 && config.gg_extra == 0) if (config.aspect_ratio == 0)
{ {
return (6.0 / 5.0) * ((double)vwidth / (double)vheight); if ((system_hw == SYSTEM_GG || system_hw == SYSTEM_GGMS) && config.overscan == 0 && config.gg_extra == 0)
} return (6.0 / 5.0) * ((double)vwidth / (double)vheight);
} }
bool is_h40 = bitmap.viewport.w == 320; /* Could be read directly from the register as well. */ is_h40 = bitmap.viewport.w == 320; /* Could be read directly from the register as well. */
dotrate = system_clock / (is_h40 ? 8.0 : 10.0);
double dotrate = system_clock / (is_h40 ? 8.0 : 10.0); if (config.aspect_ratio == 1) /* Force NTSC PAR */
double videosamplerate; videosamplerate = 135000000.0 / 11.0;
else if (config.aspect_ratio == 2) /* Force PAL PAR */
videosamplerate = 14750000.0;
else
videosamplerate = vdp_pal ? 14750000.0 : 135000000.0 / 11.0;
if (config.aspect_ratio == 1) /* Force NTSC PAR */ return (videosamplerate / dotrate) * ((double)vwidth / ((double)vheight * 2.0));
{
videosamplerate = 135000000.0 / 11.0;
}
else if (config.aspect_ratio == 2) /* Force PAL PAR */
{
videosamplerate = 14750000.0;
}
else
{
videosamplerate = vdp_pal ? 14750000.0 : 135000000.0 / 11.0;
}
return (videosamplerate / dotrate) * ((double)vwidth / ((double)vheight * 2.0));
} }
static bool update_viewport(void) static bool update_viewport(void)
@ -798,10 +790,10 @@ static bool update_viewport(void)
static void check_variables(void) static void check_variables(void)
{ {
unsigned orig_value; unsigned orig_value;
struct retro_system_av_info info;
bool update_viewports = false; bool update_viewports = false;
bool reinit = false; bool reinit = false;
struct retro_variable var = {0}; struct retro_variable var = {0};
struct retro_system_av_info info;
var.key = "genesis_plus_gx_bram"; var.key = "genesis_plus_gx_bram";
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var); environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);