From 9fe16cad683cac7fa7f13e39e8168b1cefd193fc Mon Sep 17 00:00:00 2001
From: Paul Lemire <paul.lemire.ecortex@kdab.com>
Date: Mon, 24 Nov 2014 07:39:26 +0100
Subject: RenderShaderData: update UBO uniform by uniform

Instead of updating the whole UBO at once, we keep track of the
QShaderData/member in the uniform block that have changed and upload only the
buffer from the uniform offset to uniform offset + size.

Change-Id: Ib69302183b17dbe15985b405406c8fed88c022bb
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
---
 src/render/backend/rendershaderdata_p.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/render/backend/rendershaderdata_p.h')

diff --git a/src/render/backend/rendershaderdata_p.h b/src/render/backend/rendershaderdata_p.h
index 9f14a24cd..7210056dc 100644
--- a/src/render/backend/rendershaderdata_p.h
+++ b/src/render/backend/rendershaderdata_p.h
@@ -79,6 +79,7 @@ private:
     ShaderUniformBlock m_block;
     QByteArray m_data;
     UniformBuffer m_ubo;
+    QStringList m_updatedProperties;
     bool m_initialized;
     bool m_needsBufferUpdate;
 };
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