frontend: add chan display option, for fun mostly

[pcsx_rearmed.git] / frontend / plugin_lib.c

diff --git a/frontend/plugin_lib.c b/frontend/plugin_lib.c
index 58c67d2..8d5605f 100644 (file)
--- a/frontend/plugin_lib.c
+++ b/frontend/plugin_lib.c
@@ -74,6 +74,35 @@ static void print_cpu_usage(void)
                pl_text_out16(pl_fbdev_w - 28, pl_fbdev_h - 10, "%3d", tick_per_sec);
 }
 
+// draw 192x8 status of 24 sound channels
+static __attribute__((noinline)) void draw_active_chans(void)
+{
+       extern void spu_get_debug_info(int *chans_out, int *fmod_chans_out, int *noise_chans_out); // hack
+       int live_chans, fmod_chans, noise_chans;
+
+       static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
+       unsigned short *dest = (unsigned short *)pl_fbdev_buf +
+               pl_fbdev_w * (pl_fbdev_h - 10) + pl_fbdev_w / 2 - 192/2;
+       unsigned short *d, p;
+       int c, x, y;
+
+       if (pl_fbdev_bpp != 16)
+               return;
+
+       spu_get_debug_info(&live_chans, &fmod_chans, &noise_chans);
+
+       for (c = 0; c < 24; c++) {
+               d = dest + c * 8;
+               p = !(live_chans & (1<<c)) ? 0 :
+                    (fmod_chans & (1<<c)) ? 0xf000 :
+                    (noise_chans & (1<<c)) ? 0x001f :
+                    colors[c & 1];
+               for (y = 0; y < 8; y++, d += pl_fbdev_w)
+                       for (x = 0; x < 8; x++)
+                               d[x] = p;
+       }
+}
+
 void *pl_fbdev_set_mode(int w, int h, int bpp)
 {
        void *ret;
@@ -102,6 +131,9 @@ void *pl_fbdev_flip(void)
        flip_cnt++;
 
        if (pl_fbdev_buf != NULL) {
+               if (g_opts & OPT_SHOWSPU)
+                       draw_active_chans();
+
                if (hud_msg[0] != 0)
                        print_hud();
                else if (g_opts & OPT_SHOWFPS)