Refactored Renderer::setDepthStencilState to no longer require the stencil size parameter.

TRAC #22145

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

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1517 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/Renderer9.cpp b/src/libGLESv2/renderer/Renderer9.cpp
index a834a4d..14a5e37 100644
--- a/src/libGLESv2/renderer/Renderer9.cpp
+++ b/src/libGLESv2/renderer/Renderer9.cpp
@@ -798,14 +798,13 @@
 }
 
 void Renderer9::setDepthStencilState(const gl::DepthStencilState &depthStencilState, int stencilRef,
-                                     int stencilBackRef, bool frontFaceCCW, unsigned int stencilSize)
+                                     int stencilBackRef, bool frontFaceCCW)
 {
     bool depthStencilStateChanged = mForceSetDepthStencilState ||
                                     memcmp(&depthStencilState, &mCurDepthStencilState, sizeof(gl::DepthStencilState)) != 0;
     bool stencilRefChanged = mForceSetDepthStencilState || stencilRef != mCurStencilRef ||
                              stencilBackRef != mCurStencilBackRef;
     bool frontFaceCCWChanged = mForceSetDepthStencilState || frontFaceCCW != mCurFrontFaceCCW;
-    bool stencilSizeChanged = mForceSetDepthStencilState || stencilSize != mCurStencilSize;
 
     if (depthStencilStateChanged)
     {
@@ -822,9 +821,9 @@
         mCurDepthStencilState = depthStencilState;
     }
 
-    if (depthStencilStateChanged || stencilRefChanged || frontFaceCCWChanged || stencilSizeChanged)
+    if (depthStencilStateChanged || stencilRefChanged || frontFaceCCWChanged)
     {
-        if (depthStencilState.stencilTest && stencilSize > 0)
+        if (depthStencilState.stencilTest && mCurStencilSize > 0)
         {
             mDevice->SetRenderState(D3DRS_STENCILENABLE, TRUE);
             mDevice->SetRenderState(D3DRS_TWOSIDEDSTENCILMODE, TRUE);
@@ -842,7 +841,7 @@
             }
 
             // get the maximum size of the stencil ref
-            GLuint maxStencil = (1 << stencilSize) - 1;
+            unsigned int maxStencil = (1 << mCurStencilSize) - 1;
 
             mDevice->SetRenderState(frontFaceCCW ? D3DRS_STENCILWRITEMASK : D3DRS_CCW_STENCILWRITEMASK,
                                     depthStencilState.stencilWritemask);
@@ -888,7 +887,6 @@
         mCurStencilRef = stencilRef;
         mCurStencilBackRef = stencilBackRef;
         mCurFrontFaceCCW = frontFaceCCW;
-        mCurStencilSize = stencilSize;
     }
 
     mForceSetDepthStencilState = false;
@@ -1083,6 +1081,7 @@
         !mDepthStencilInitialized)
     {
         unsigned int depthSize = 0;
+        unsigned int stencilSize = 0;
 
         // Apply the depth stencil on the device
         if (depthStencil)
@@ -1105,6 +1104,7 @@
             depthStencilSurface->Release();
 
             depthSize = depthStencil->getDepthSize();
+            stencilSize = depthStencil->getStencilSize();
         }
         else
         {
@@ -1117,6 +1117,12 @@
             mForceSetRasterState = true;
         }
 
+        if (!mDepthStencilInitialized || stencilSize != mCurStencilSize)
+        {
+            mCurStencilSize = stencilSize;
+            mForceSetDepthStencilState = true;
+        }
+
         mAppliedDepthbufferSerial = depthbufferSerial;
         mAppliedStencilbufferSerial = stencilbufferSerial;
         mDepthStencilInitialized = true;