From 76725b2d3b16aaa49dc5bea64bc83adf4605e5f8 Mon Sep 17 00:00:00 2001
From: "Carsten Haitzler (Rasterman)" <raster@rasterman.com>
Date: Tue, 9 Oct 2018 14:04:05 +0100
Subject: [PATCH] evas gl x11 - add working measure funcs for debugging
 performance

---
 src/modules/evas/engines/gl_x11/evas_x_main.c | 46 +++++++++++++++++--
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/src/modules/evas/engines/gl_x11/evas_x_main.c b/src/modules/evas/engines/gl_x11/evas_x_main.c
index b86916966b..07d757e118 100644
--- a/src/modules/evas/engines/gl_x11/evas_x_main.c
+++ b/src/modules/evas/engines/gl_x11/evas_x_main.c
@@ -39,6 +39,38 @@ static Eina_Hash *_evas_gl_visuals = NULL;
 static int win_count = 0;
 static Eina_Bool initted = EINA_FALSE;
 
+#if 0
+static double
+_time_get(void)
+{
+   struct timespec t;
+
+   if (clock_gettime(CLOCK_MONOTONIC, &t))
+     {
+        fprintf(stderr, "Failed to get monotonic clock time...");
+        return 0.0;
+     }
+
+   return (double)t.tv_sec + (((double)t.tv_nsec) / 1000000000.0);
+}
+
+static void
+measure(int inout, const char *what)
+{
+   static double t0 = 0.0;
+   double t;
+
+   if (inout == 0) t0 = _time_get();
+   else if (inout ==1)
+     {
+        t = _time_get() - t0;
+        printf("%s: %1.2f\n", what, t * 1000.0);
+     }
+}
+#else
+# define measure(x, y)
+#endif
+
 Eina_Bool
 eng_init(void)
 {
@@ -1396,6 +1428,7 @@ eng_outbuf_swap_mode(Outbuf *ob)
      {
         Render_Output_Swap_Mode swap_mode;
         eina_evlog("+gl_query_surf_swap_mode", ob, 0.0, NULL);
+        measure(0, "query age");
 #ifdef GL_GLES
         EGLint age = 0;
 
@@ -1412,6 +1445,7 @@ eng_outbuf_swap_mode(Outbuf *ob)
                age = 0;
           }
 #endif
+        measure(1, "query age");
         if (age == 1) swap_mode = MODE_COPY;
         else if (age == 2) swap_mode = MODE_DOUBLE;
         else if (age == 3) swap_mode = MODE_TRIPLE;
@@ -1615,13 +1649,19 @@ eng_outbuf_flush(Outbuf *ob, Tilebuf_Rect *surface_damage EINA_UNUSED, Tilebuf_R
                   _convert_to_glcoords(&result[i], ob, r->x, r->y, r->w, r->h);
                   i += 4;
                }
+             measure(0, "swap with damage");
              glsym_eglSwapBuffersWithDamage(ob->egl_disp,
                                             ob->egl_surface,
                                             result, num);
+             measure(1, "swap with damage");
           }
      }
    else
-     eglSwapBuffers(ob->egl_disp, ob->egl_surface);
+     {
+        measure(0, "swap");
+        eglSwapBuffers(ob->egl_disp, ob->egl_surface);
+        measure(1, "swap");
+     }
 
 //xx   if (!safe_native) eglWaitGL();
 //   if (eglGetError() != EGL_SUCCESS)
@@ -1664,9 +1704,9 @@ eng_outbuf_flush(Outbuf *ob, Tilebuf_Rect *surface_damage EINA_UNUSED, Tilebuf_R
      }
 #endif
    // XXX: if partial swaps can be done use re->rects
-//   measure(0, "swap");
+   measure(0, "swap");
    glXSwapBuffers(ob->disp, ob->glxwin);
-//   measure(1, "swap");
+   measure(1, "swap");
 #endif
    // clear out rects after swap as we may use them during swap