Add Wayland with GPU support.

Cherry-pick from http://192.168.110.45/sdk/buildroot/-/commit/ed70e2b79cbc7a504792899e2cd3577777fd54bd
2022-06-21 14:08:48 +08:00
parent 9234eab162
commit c50e5ba7a5
65 changed files with 21691 additions and 250 deletions
@@ -0,0 +1,46 @@
+From 0b65066319eff5c482614574d4a4192454837835 Mon Sep 17 00:00:00 2001
+From: Frank Binns <frank.binns@imgtec.com>
+Date: Tue, 15 Sep 2015 14:15:31 +0100
+Subject: [PATCH 09/50] egl: optimise eglMakeCurrent for the case where nothing
+ has changed
+
+When an application calls eglMakeCurrent with a context, draw surface and
+read surface that match those that are currently bound to the calling
+thread don't perform a flush as this is an expensive operation.
+---
+ src/egl/main/eglapi.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
+index 9d90f503cc5..bc7014ef8ed 100644
+--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
+@@ -853,6 +853,7 @@ eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
+                EGLContext ctx)
+ {
+    _EGLDisplay *disp = _eglLockDisplay(dpy);
+   _EGLContext *current_context = _eglGetCurrentContext();
+    _EGLContext *context = _eglLookupContext(ctx, disp);
+    _EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
+    _EGLSurface *read_surf = _eglLookupSurface(read, disp);
+@@ -909,7 +910,16 @@ eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
+        draw_surf && !draw_surf->ProtectedContent)
+       RETURN_EGL_ERROR(disp, EGL_BAD_ACCESS, EGL_FALSE);
+ 
+-   ret = disp->Driver->MakeCurrent(disp, draw_surf, read_surf, context);
+   /* As an optimisation don't do anything unless something has changed */
+   if (context != current_context ||
+       (current_context &&
+        (draw_surf != current_context->DrawSurface ||
+         read_surf != current_context->ReadSurface)) ||
+       (!current_context && (draw_surf || read_surf))) {
+           ret = disp->Driver->MakeCurrent(disp, draw_surf, read_surf, context);
+   } else {
+	   ret = EGL_TRUE;
+   }
+ 
+    RETURN_EGL_EVAL(disp, ret);
+ }
+-- 
+2.17.1
+