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Merge pull request #42 from hizzlekizzle/patch-1

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Add image offset core option
This commit is contained in:
Twinaphex 2016-05-22 16:52:03 +02:00
commit eb5818587f
1 changed files with 27 additions and 1 deletions
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28
libretro.cpp
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@ -29,6 +29,7 @@ static unsigned internal_frame_count = 0;
static bool display_internal_framerate = false;
static bool allow_frame_duping = false;
static bool failed_init = false;
static unsigned image_offset = 0;
// Sets how often (in number of output frames/retro_run invocations)
// the internal framerace counter should be updated if
@ -2752,6 +2753,30 @@ static void check_variables(bool startup)
else
display_internal_framerate = false;
var.key = "beetle_psx_image_offset";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "disabled") == 0)
image_offset = 0;
else if (strcmp(var.value, "1 px") == 0)
image_offset = -1;
else if (strcmp(var.value, "-1 px") == 0)
image_offset = 1;
else if (strcmp(var.value, "2 px") == 0)
image_offset = -2;
else if (strcmp(var.value, "-2 px") == 0)
image_offset = 2;
else if (strcmp(var.value, "3 px") == 0)
image_offset = -3;
else if (strcmp(var.value, "-3 px") == 0)
image_offset = 3;
else if (strcmp(var.value, "4 px") == 0)
image_offset = -4;
else if (strcmp(var.value, "-4 px") == 0)
image_offset = 4;
}
}
#ifdef NEED_CD
@ -3560,7 +3585,7 @@ void retro_run(void)
// PSX core inserts padding on left and right (overscan). Optionally crop this.
const uint32_t *pix = surf->pixels;
unsigned pix_offset = 0;
unsigned pix_offset = 0 + image_offset;
if (!overscan)
{
@ -3757,6 +3782,7 @@ void retro_set_environment(retro_environment_t cb)
{ "beetle_psx_enable_multitap_port2", "Port 2: Multitap enable; disabled|enabled" },
{ "beetle_psx_frame_duping_enable", "Frame duping (speedup); disabled|enabled" },
{ "beetle_psx_display_internal_framerate", "Display internal FPS; disabled|enabled" },
{ "beetle_psx_image_offset", "Offset Cropped Image; disabled|1 px|2 px|3 px|4 px|-4 px|-3 px|-2 px|-1 px" },
{ NULL, NULL },
};
static const struct retro_controller_description pads[] = {