commit 0a337e93bf945dc76d8d4f77912ea00e25986bb3
author daniel@transgaming.com <daniel@transgaming.com@736b8ea6-26fd-11df-bfd4-992fa37f6226> Sat Aug 28 17:38:27 2010 +0000
committer daniel@transgaming.com <daniel@transgaming.com@736b8ea6-26fd-11df-bfd4-992fa37f6226> Sat Aug 28 17:38:27 2010 +0000
tree 85024dc2473aafa6034d0aac2e798245f6695738
parent 06098890abb48bf02b1fc77c67ed373ce2268151

Implement support for floating point textures.
Trac #12909

Implements GL_OES_texture_float, GL_OES_texture_half_float,
GL_OES_texture_float_linear, and GL_OES_texture_half_float_linear
when supported by the hardware.

Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch

Author:    Shannon Woods <shannon.woods@transgaming.com>

git-svn-id: https://angleproject.googlecode.com/svn/trunk@404 736b8ea6-26fd-11df-bfd4-992fa37f6226

src/libEGL/Display.cpp

diff --git a/src/libEGL/Display.cpp b/src/libEGL/Display.cpp
index e2802da..c7481d7 100644
--- a/src/libEGL/Display.cpp
+++ b/src/libEGL/Display.cpp
@@ -487,4 +487,46 @@
 
     return SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0, D3DRTYPE_TEXTURE, D3DFMT_DXT1));
 }
+
+bool Display::getFloatTextureSupport(bool *filtering)
+{
+    D3DDISPLAYMODE currentDisplayMode;
+    mD3d9->GetAdapterDisplayMode(mAdapter, &currentDisplayMode);
+
+    if (SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, D3DUSAGE_QUERY_FILTER, 
+                                           D3DRTYPE_TEXTURE, D3DFMT_A32B32G32R32F)))
+    {
+        *filtering = true;
+        return true;
+    }
+    else
+    {
+        *filtering = false;
+        return SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0, 
+                                                  D3DRTYPE_TEXTURE, D3DFMT_A32B32G32R32F)) &&
+               SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0,
+                                                  D3DRTYPE_CUBETEXTURE, D3DFMT_A32B32G32R32F));
+    }
+}
+
+bool Display::getHalfFloatTextureSupport(bool *filtering)
+{
+    D3DDISPLAYMODE currentDisplayMode;
+    mD3d9->GetAdapterDisplayMode(mAdapter, &currentDisplayMode);
+
+    if (SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, D3DUSAGE_QUERY_FILTER, 
+                                           D3DRTYPE_TEXTURE, D3DFMT_A16B16G16R16F)))
+    {
+        *filtering = true;
+        return true;
+    }
+    else
+    {
+        *filtering = false;
+        return SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0, 
+                                                  D3DRTYPE_TEXTURE, D3DFMT_A16B16G16R16F)) &&
+               SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0,
+                                                  D3DRTYPE_CUBETEXTURE, D3DFMT_A16B16G16R16F));
+    }
+}
 }