Mesa (master): egl/android: Restrict minimum triple buffering for android color_buffers
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gitlab-mirror at kemper.freedesktop.org
Wed Jan 15 10:08:10 UTC 2020
Module: Mesa
Branch: master
Commit: be08e6a4496aad219df1fd829fca3e4f7b322538
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=be08e6a4496aad219df1fd829fca3e4f7b322538
Author: Nataraj Deshpande <nataraj.deshpande at intel.com>
Date: Fri Jan 10 08:58:00 2020 -0800
egl/android: Restrict minimum triple buffering for android color_buffers
The patch restricts triple buffering as minimum at driver for android
color_buffers in order to fix onscreen performance hit for T-Rex and
Manhattan.
v2: Update min_buffer check condition (Tapani Pälli)
v3: further code cleanup (Eric Engestrom)
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2332
Fixes: 0661c357c60 ("egl/android: Update color_buffers querying for buffer age")
Signed-off-by: Nataraj Deshpande <nataraj.deshpande at intel.com>
Reviewed-by: Tapani Pälli <tapani.palli at intel.com>
Reviewed-by: Eric Engestrom <eric at engestrom.ch>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3384>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3384>
---
src/egl/drivers/dri2/platform_android.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/src/egl/drivers/dri2/platform_android.c b/src/egl/drivers/dri2/platform_android.c
index 6ed0b416cf8..d1b50a3fa72 100644
--- a/src/egl/drivers/dri2/platform_android.c
+++ b/src/egl/drivers/dri2/platform_android.c
@@ -375,6 +375,7 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
if (type == EGL_WINDOW_BIT) {
int format;
int buffer_count;
+ const int min_buffers = 3;
if (window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
_eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
@@ -393,17 +394,20 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
goto cleanup_surface;
}
- if (native_window_set_buffer_count(window, buffer_count+1)) {
+
+ if (buffer_count < min_buffers)
+ buffer_count = min_buffers;
+ if (native_window_set_buffer_count(window, buffer_count)) {
_eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
goto cleanup_surface;
}
- dri2_surf->color_buffers = calloc(buffer_count+1,
+ dri2_surf->color_buffers = calloc(buffer_count,
sizeof(*dri2_surf->color_buffers));
if (!dri2_surf->color_buffers) {
_eglError(EGL_BAD_ALLOC, "droid_create_surface");
goto cleanup_surface;
}
- dri2_surf->color_buffers_count = buffer_count+1;
+ dri2_surf->color_buffers_count = buffer_count;
if (format != dri2_conf->base.NativeVisualID) {
_eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
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