From: Marek Olšák <marek.olsak@amd.com>
Date: Fri, 5 Aug 2016 21:33:52 +0000 (+0200)
Subject: st/mesa: use PIPE_USAGE_STREAM for GL_CLIENT_STORAGE_BIT without READ_BIT (v2)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c6043e7d54fc48771856a50235f9141b711151f3;p=mesa.git

st/mesa: use PIPE_USAGE_STREAM for GL_CLIENT_STORAGE_BIT without READ_BIT (v2)

v2: keep STAGING for GL_MAP_READ_BIT

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
---

diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 6d54326d1a0..2f56a55301d 100644
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -248,10 +248,14 @@ st_bufferobj_data(struct gl_context *ctx,
    /* Set usage. */
    if (st_obj->Base.Immutable) {
       /* BufferStorage */
-      if (storageFlags & GL_CLIENT_STORAGE_BIT)
-         pipe_usage = PIPE_USAGE_STAGING;
-      else
+      if (storageFlags & GL_CLIENT_STORAGE_BIT) {
+         if (storageFlags & GL_MAP_READ_BIT)
+            pipe_usage = PIPE_USAGE_STAGING;
+         else
+            pipe_usage = PIPE_USAGE_STREAM;
+      } else {
          pipe_usage = PIPE_USAGE_DEFAULT;
+      }
    }
    else {
       /* BufferData */