aboutsummaryrefslogtreecommitdiff
path: root/frontend/libretro.c
diff options
context:
space:
mode:
Diffstat (limited to 'frontend/libretro.c')
-rw-r--r--frontend/libretro.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/frontend/libretro.c b/frontend/libretro.c
index 3431685..3b366d4 100644
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -28,6 +28,9 @@ static retro_environment_t environ_cb;
static retro_audio_sample_batch_t audio_batch_cb;
static void *vout_buf;
+static int vout_width, vout_height;
+static int vout_doffs_old, vout_fb_dirty;
+
static int samples_sent, samples_to_send;
static int plugins_opened;
@@ -81,6 +84,8 @@ static int vout_open(void)
static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
{
+ vout_width = w;
+ vout_height = h;
}
#ifndef FRONTEND_SUPPORTS_RGB565
@@ -95,15 +100,12 @@ static void convert(void *buf, size_t bytes)
}
#endif
-static unsigned game_width;
-static unsigned game_height;
-static unsigned game_fb_dirty;
-
static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
{
unsigned short *dest = vout_buf;
const unsigned short *src = vram;
- int dstride = w, h1 = h;
+ int dstride = vout_width, h1 = h;
+ int doffs;
if (vram == NULL) {
// blanking
@@ -111,6 +113,15 @@ static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
goto out;
}
+ doffs = (vout_height - h) * dstride;
+ doffs += (dstride - w) / 2 & ~1;
+ if (doffs != vout_doffs_old) {
+ // clear borders
+ memset(vout_buf, 0, dstride * h * 2);
+ vout_doffs_old = doffs;
+ }
+ dest += doffs;
+
if (bgr24)
{
// XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
@@ -129,11 +140,9 @@ static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
out:
#ifndef FRONTEND_SUPPORTS_RGB565
- convert(vout_buf, w * h * 2);
+ convert(vout_buf, vout_width * vout_height * 2);
#endif
- game_width = w;
- game_height = h;
- game_fb_dirty = 1;
+ vout_fb_dirty = 1;
pl_rearmed_cbs.flip_cnt++;
}
@@ -393,8 +402,8 @@ void retro_run(void)
samples_to_send += 44100 / 60;
- video_cb(game_fb_dirty ? vout_buf : NULL, game_width, game_height, game_width * 2);
- game_fb_dirty = 0;
+ video_cb(vout_fb_dirty ? vout_buf : NULL, vout_width, vout_height, vout_width * 2);
+ vout_fb_dirty = 0;
}
void retro_init(void)