commit 8d2f086ad33f82aa1a01fe86a1bbfa6eba47e224
author shannon.woods@transgaming.com <shannon.woods@transgaming.com@736b8ea6-26fd-11df-bfd4-992fa37f6226> Thu Feb 28 23:09:19 2013 +0000
committer shannon.woods@transgaming.com <shannon.woods@transgaming.com@736b8ea6-26fd-11df-bfd4-992fa37f6226> Thu Feb 28 23:09:19 2013 +0000
tree 180bf370e346db217394daa7c038eaa7fabbcda0
parent 0bbb08d96ba8c7dba535909cb91594816df12c17

Only advertise postSubBuffer extension if we can actually present less than the whole buffer.

This is not available in D3D11, though it is added in D3D11.1.

TRAC #22506

Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1892 736b8ea6-26fd-11df-bfd4-992fa37f6226

src/libEGL/Display.cpp

diff --git a/src/libEGL/Display.cpp b/src/libEGL/Display.cpp
index 54523c4..731f7f2 100644
--- a/src/libEGL/Display.cpp
+++ b/src/libEGL/Display.cpp
@@ -500,7 +500,10 @@
         mExtensionString += "EGL_ANGLE_surface_d3d_texture_2d_share_handle ";
     }
 
-    mExtensionString += "EGL_NV_post_sub_buffer";
+    if (mRenderer->getPostSubBufferSupport())
+    {
+        mExtensionString += "EGL_NV_post_sub_buffer";
+    }
 
     std::string::size_type end = mExtensionString.find_last_not_of(' ');
     if (end != std::string::npos)

src/libGLESv2/renderer/Renderer.h

diff --git a/src/libGLESv2/renderer/Renderer.h b/src/libGLESv2/renderer/Renderer.h
index f59e743..40bc985 100644
--- a/src/libGLESv2/renderer/Renderer.h
+++ b/src/libGLESv2/renderer/Renderer.h
@@ -167,6 +167,7 @@
     virtual float getTextureMaxAnisotropy() const = 0;
     virtual bool getShareHandleSupport() const = 0;
     virtual bool getDerivativeInstructionSupport() const = 0;
+    virtual bool getPostSubBufferSupport() const = 0;
 
     virtual int getMajorShaderModel() const = 0;
     virtual float getMaxPointSize() const = 0;

src/libGLESv2/renderer/Renderer11.cpp

diff --git a/src/libGLESv2/renderer/Renderer11.cpp b/src/libGLESv2/renderer/Renderer11.cpp
index 0cbe18b..2aa342c 100644
--- a/src/libGLESv2/renderer/Renderer11.cpp
+++ b/src/libGLESv2/renderer/Renderer11.cpp
@@ -2235,6 +2235,12 @@
     }
 }
 
+bool Renderer11::getPostSubBufferSupport() const
+{
+    // D3D11 does not support present with dirty rectangles until D3D11.1 and DXGI 1.2.
+    return false;
+}
+
 int Renderer11::getMajorShaderModel() const
 {
     switch (mFeatureLevel)

src/libGLESv2/renderer/Renderer11.h

diff --git a/src/libGLESv2/renderer/Renderer11.h b/src/libGLESv2/renderer/Renderer11.h
index 86088b4..e782235 100644
--- a/src/libGLESv2/renderer/Renderer11.h
+++ b/src/libGLESv2/renderer/Renderer11.h
@@ -118,6 +118,7 @@
     virtual float getTextureMaxAnisotropy() const;
     virtual bool getShareHandleSupport() const;
     virtual bool getDerivativeInstructionSupport() const;
+    virtual bool getPostSubBufferSupport() const;
 
     virtual int getMajorShaderModel() const;
     virtual float getMaxPointSize() const;

src/libGLESv2/renderer/Renderer9.cpp

diff --git a/src/libGLESv2/renderer/Renderer9.cpp b/src/libGLESv2/renderer/Renderer9.cpp
index 305a22f..7452f3f 100644
--- a/src/libGLESv2/renderer/Renderer9.cpp
+++ b/src/libGLESv2/renderer/Renderer9.cpp
@@ -2306,6 +2306,11 @@
     return (mDeviceCaps.PS20Caps.Caps & D3DPS20CAPS_GRADIENTINSTRUCTIONS) != 0;
 }
 
+bool Renderer9::getPostSubBufferSupport() const
+{
+    return true;
+}
+
 int Renderer9::getMajorShaderModel() const
 {
     return D3DSHADER_VERSION_MAJOR(mDeviceCaps.PixelShaderVersion);

src/libGLESv2/renderer/Renderer9.h

diff --git a/src/libGLESv2/renderer/Renderer9.h b/src/libGLESv2/renderer/Renderer9.h
index 6af705c..39967dd 100644
--- a/src/libGLESv2/renderer/Renderer9.h
+++ b/src/libGLESv2/renderer/Renderer9.h
@@ -146,6 +146,7 @@
     virtual float getTextureMaxAnisotropy() const;
     virtual bool getShareHandleSupport() const;
     virtual bool getDerivativeInstructionSupport() const;
+    virtual bool getPostSubBufferSupport() const;
 
     virtual int getMajorShaderModel() const;
     virtual float getMaxPointSize() const;