Initial commit

2026-04-23 17:07:55 +08:00
commit b7e39e063b
16725 changed files with 1625565 additions and 0 deletions
@@ -0,0 +1,89 @@
+From ffdcdf7605f4f266b408cf161e7c76dab54d689b Mon Sep 17 00:00:00 2001
+From: Jeff Wannamaker <jeff_wannamaker@cable.comcast.com>
+Date: Thu, 19 Jan 2017 18:56:07 +0000
+Subject: [PATCH] Implement triple buffering for wayland
+
+Change from double to triple buffering for wayland.
+This enables higher frame rates without tearing artifacts
+by allowing both the glFinish and the buffer release
+interlock to operate without pushing the frame period
+to two vertical intervals
+
+Signed-off-by: Jeff Wannamaker <jeff_wannamaker@cable.comcast.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ interface/khronos/egl/egl_client.c         |  3 ++-
+ interface/khronos/egl/egl_client_surface.c |  8 ++++++++
+ interface/khronos/egl/egl_client_surface.h | 11 +++++++++++
+ 3 files changed, 21 insertions(+), 1 deletion(-)
+
+diff --git a/interface/khronos/egl/egl_client.c b/interface/khronos/egl/egl_client.c
+index 13a110c..0380274 100644
+--- a/interface/khronos/egl/egl_client.c
+++ b/interface/khronos/egl/egl_client.c
+@@ -2323,7 +2323,8 @@ EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffers(EGLDisplay dpy, EGLSurface surf)
+ 
+                   buffer_temp = surface->front_wl_buffer;
+                   surface->front_wl_buffer = surface->back_wl_buffer;
+-                  surface->back_wl_buffer = buffer_temp;
+                  surface->back_wl_buffer = surface->middle_wl_buffer;
+                  surface->middle_wl_buffer = buffer_temp;
+ 
+                   configid = egl_config_to_id(surface->config);
+                   color = egl_config_get_color_format(configid);
+diff --git a/interface/khronos/egl/egl_client_surface.c b/interface/khronos/egl/egl_client_surface.c
+index 9a9582c..10b3b04 100644
+--- a/interface/khronos/egl/egl_client_surface.c
+++ b/interface/khronos/egl/egl_client_surface.c
+@@ -402,12 +402,14 @@ EGL_SURFACE_T *egl_surface_create(
+    if (type == WINDOW && wl_display) {
+       surface->wl_egl_window = (struct wl_egl_window*)win;
+       surface->front_wl_buffer = NULL;
+      surface->middle_wl_buffer = NULL;
+       surface->back_wl_buffer = allocate_wl_buffer(
+             surface->wl_egl_window, color);
+       resource = surface->back_wl_buffer->resource;
+    } else {
+       surface->wl_egl_window = NULL;
+       surface->front_wl_buffer = NULL;
+      surface->middle_wl_buffer = NULL;
+       surface->back_wl_buffer = NULL;
+       resource = DISPMANX_NO_HANDLE;
+    }
+@@ -696,6 +698,12 @@ void egl_surface_free(EGL_SURFACE_T *surface)
+          surface->back_wl_buffer = 0;
+       }
+ 
+      if (surface->middle_wl_buffer) {
+         wl_buffer_destroy(surface->middle_wl_buffer->wl_buffer);
+         free(surface->middle_wl_buffer);
+         surface->middle_wl_buffer = 0;
+      }
+
+       if (surface->front_wl_buffer) {
+          wl_buffer_destroy(surface->front_wl_buffer->wl_buffer);
+          free(surface->front_wl_buffer);
+diff --git a/interface/khronos/egl/egl_client_surface.h b/interface/khronos/egl/egl_client_surface.h
+index e328b77..58a3184 100644
+--- a/interface/khronos/egl/egl_client_surface.h
+++ b/interface/khronos/egl/egl_client_surface.h
+@@ -312,6 +312,17 @@ typedef struct {
+    */
+    struct wl_dispmanx_client_buffer *front_wl_buffer;
+ 
+   /*
+      middle_wl_buffer
+
+      Validity:
+      type == WINDOW
+
+      Invariant:
+      client-side information about the wl_buffer in the middle
+   */
+   struct wl_dispmanx_client_buffer *middle_wl_buffer;
+
+    /*
+       back_wl_buffer
+