| From a7bfc6808d0ef3b90a5d85224673a5e6ff284339 Mon Sep 17 00:00:00 2001 |
| From: Lepton Wu <lepton@chromium.org> |
| Date: Wed, 3 Jun 2020 20:33:26 -0700 |
| Subject: [PATCH] egl/android: Increase preferred buffer count to 4. |
| |
| It seems 3 is not enough for drivers like virgl. With 4, it increases |
| T-Rex of gfxbench FPS from 42 to 55 on a Pixelbook. |
| |
| Signed-off-by: Lepton Wu <lepton@chromium.org> |
| --- |
| src/egl/drivers/dri2/platform_android.c | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| diff --git a/src/egl/drivers/dri2/platform_android.c b/src/egl/drivers/dri2/platform_android.c |
| index 31acf540657..a1f7b2379ab 100644 |
| --- a/src/egl/drivers/dri2/platform_android.c |
| +++ b/src/egl/drivers/dri2/platform_android.c |
| @@ -356,8 +356,8 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type, |
| int buffer_count; |
| int min_buffer_count, max_buffer_count; |
| |
| - /* Prefer triple buffering for performance reasons. */ |
| - const int preferred_buffer_count = 3; |
| + /* Some driver like virgl, need quad buffering for performance reasons. */ |
| + const int preferred_buffer_count = 4; |
| |
| if (window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) { |
| _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface"); |
| -- |
| 2.26.2 |
| |
