diff --git a/panda/src/dxgsg/dxGraphicsStateGuardian.h b/panda/src/dxgsg/dxGraphicsStateGuardian.h
index 79fd538ee1..bf15b6e10b 100644
--- a/panda/src/dxgsg/dxGraphicsStateGuardian.h
+++ b/panda/src/dxgsg/dxGraphicsStateGuardian.h
@@ -377,7 +377,7 @@ public:
 		  LPDIRECT3D7          d3d,
 		  LPDIRECT3DDEVICE7    d3dDevice,
 		  RECT  viewrect);
-   friend HRESULT CALLBACK DXGraphicsStateGuardian::EnumTexFmtsCallback( LPDDPIXELFORMAT pddpf, VOID* param );
+   friend HRESULT CALLBACK EnumTexFmtsCallback( LPDDPIXELFORMAT pddpf, VOID* param );
 
 private:
   static TypeHandle _type_handle;
diff --git a/panda/src/dxgsg/dxTextureContext.cxx b/panda/src/dxgsg/dxTextureContext.cxx
index b7b66079be..df41e76297 100644
--- a/panda/src/dxgsg/dxTextureContext.cxx
+++ b/panda/src/dxgsg/dxTextureContext.cxx
@@ -1032,7 +1032,7 @@ CreateTexture( HDC PrimaryDC, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts,
              {
               for(i=0,pCurPixFmt=&pTexPixFmts[cNumTexPixFmts-1];i<cNumTexPixFmts;i++,pCurPixFmt--) {
                   if((pCurPixFmt->dwRGBBitCount==8) && (pCurPixFmt->dwFlags & DDPF_LUMINANCE) &&
-                     (pCurPixFmt->dwLuminanceBitMask=0xFF)) {
+                     (pCurPixFmt->dwLuminanceBitMask==0xFF)) {
                         ConvNeeded=ConvLum8to8;
                         goto found_matching_format;
                   }
@@ -1105,7 +1105,7 @@ CreateTexture( HDC PrimaryDC, LPDIRECT3DDEVICE7 pd3dDevice, int cNumTexPixFmts,
 
     ft =_tex->get_magfilter();
     if((ft!=Texture::FT_linear) && ft!=Texture::FT_nearest) {
-        if(ft=Texture::FT_nearest_mipmap_nearest)
+        if(ft==Texture::FT_nearest_mipmap_nearest)
             ft=Texture::FT_nearest;
          else ft=Texture::FT_linear;
     }