Detect L8 and A8L8 texture support.

src/libEGL/Display.cpp

@@ -590,6 +590,22 @@ bool Display::getHalfFloatTextureSupport(bool *filtering, bool *renderable)
     }
 }
 
+bool Display::getLuminanceTextureSupport()
+{
+    D3DDISPLAYMODE currentDisplayMode;
+    mD3d9->GetAdapterDisplayMode(mAdapter, &currentDisplayMode);
+
+    return SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0, D3DRTYPE_TEXTURE, D3DFMT_L8));
+}
+
+bool Display::getLuminanceAlphaTextureSupport()
+{
+    D3DDISPLAYMODE currentDisplayMode;
+    mD3d9->GetAdapterDisplayMode(mAdapter, &currentDisplayMode);
+
+    return SUCCEEDED(mD3d9->CheckDeviceFormat(mAdapter, mDeviceType, currentDisplayMode.Format, 0, D3DRTYPE_TEXTURE, D3DFMT_A8L8));
+}
+
 bool Display::getEventQuerySupport()
 {
     IDirect3DQuery9 *query;

src/libEGL/Display.h

@@ -64,6 +64,8 @@ class Display
     virtual bool getEventQuerySupport();
     virtual bool getFloatTextureSupport(bool *filtering, bool *renderable);
     virtual bool getHalfFloatTextureSupport(bool *filtering, bool *renderable);
+    virtual bool getLuminanceTextureSupport();
+    virtual bool getLuminanceAlphaTextureSupport();
 
   private:
     DISALLOW_COPY_AND_ASSIGN(Display);

src/libGLESv2/Context.cpp

@@ -280,6 +280,8 @@ void Context::makeCurrent(egl::Display *display, egl::Surface *surface)
         mSupportsCompressedTextures = display->getCompressedTextureSupport();
         mSupportsFloatTextures = display->getFloatTextureSupport(&mSupportsFloatLinearFilter, &mSupportsFloatRenderableTextures);
         mSupportsHalfFloatTextures = display->getHalfFloatTextureSupport(&mSupportsHalfFloatLinearFilter, &mSupportsHalfFloatRenderableTextures);
+        mSupportsLuminanceTextures = display->getLuminanceTextureSupport();
+        mSupportsLuminanceAlphaTextures = display->getLuminanceAlphaTextureSupport();
 
         initExtensionString();
 
@@ -2982,6 +2984,16 @@ int Context::getMaximumTextureLevel() const
     return mMaxTextureLevel;
 }
 
+bool Context::supportsLuminanceTextures() const
+{
+    return mSupportsLuminanceTextures;
+}
+
+bool Context::supportsLuminanceAlphaTextures() const
+{
+    return mSupportsLuminanceAlphaTextures;
+}
+
 void Context::detachBuffer(GLuint buffer)
 {
     // [OpenGL ES 2.0.24] section 2.9 page 22:

src/libGLESv2/Context.h

@@ -397,6 +397,8 @@ class Context
     bool supportsHalfFloatTextures() const;
     bool supportsHalfFloatLinearFilter() const;
     bool supportsHalfFloatRenderableTextures() const;
+    bool supportsLuminanceTextures() const;
+    bool supportsLuminanceAlphaTextures() const;
 
     void blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 
                          GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
@@ -476,6 +478,8 @@ class Context
     bool mSupportsHalfFloatTextures;
     bool mSupportsHalfFloatLinearFilter;
     bool mSupportsHalfFloatRenderableTextures;
+    bool mSupportsLuminanceTextures;
+    bool mSupportsLuminanceAlphaTextures;
 
     // state caching flags
     bool mClearStateDirty;