commit 632192dd8098d303fbf4d66f5d61c7363039a818
author Geoff Lang <geofflang@chromium.org> Fri Oct 04 13:40:46 2013 -0400
committer Geoff Lang <geofflang@chromium.org> Wed Oct 23 15:50:50 2013 -0400
tree 7e0368a9eae3a0c9f43566e159a9f7dde55833dd
parent 4133f5c2f10ab5d42a0ca8cf81e0b10fdaecea74

Added support for EXT_texture_rg in D3D9 and D3D11.

TRAC #22423

Signed-off-by: Jamie Madill
Signed-off-by: Shannon Woods

src/libGLESv2/renderer/d3d11/Renderer11.cpp

diff --git a/src/libGLESv2/renderer/d3d11/Renderer11.cpp b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
index 4e4a1b9..2a57bee 100644
--- a/src/libGLESv2/renderer/d3d11/Renderer11.cpp
+++ b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
@@ -316,6 +316,31 @@
         }
     }
 
+    DXGI_FORMAT rgTextureFormats[] =
+    {
+        DXGI_FORMAT_R8_UNORM,
+        DXGI_FORMAT_R8G8_UNORM,
+        DXGI_FORMAT_R16_FLOAT,
+        DXGI_FORMAT_R16G16_FLOAT,
+        DXGI_FORMAT_R32_FLOAT,
+        DXGI_FORMAT_R32G32_FLOAT,
+    };
+
+    mRGTextureSupport = true;
+    for (unsigned int i = 0; i < ArraySize(rgTextureFormats); i++)
+    {
+        if (SUCCEEDED(mDevice->CheckFormatSupport(rgTextureFormats[i], &formatSupport)))
+        {
+            mRGTextureSupport = mRGTextureSupport && (formatSupport & requiredTextureFlags) == requiredTextureFlags;
+            mRGTextureSupport = mRGTextureSupport && (formatSupport & requiredFilterFlags) == requiredFilterFlags;
+            mRGTextureSupport = mRGTextureSupport && (formatSupport & requiredRenderableFlags) == requiredRenderableFlags;
+        }
+        else
+        {
+            mRGTextureSupport = false;
+        }
+    }
+
     // Check compressed texture support
     const unsigned int requiredCompressedTextureFlags = D3D11_FORMAT_SUPPORT_TEXTURE2D;
 
@@ -1871,6 +1896,11 @@
     return false;
 }
 
+bool Renderer11::getRGTextureSupport() const
+{
+    return mRGTextureSupport;
+}
+
 bool Renderer11::getTextureFilterAnisotropySupport() const
 {
     return true;