Minor refactoring to pull GrClipMaskManager into its own files

http://codereview.appspot.com/5978055/



git-svn-id: http://skia.googlecode.com/svn/trunk@3697 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 1 insertions, 60 deletions

diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 7bba3558a0..de14935e7f 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -14,6 +14,7 @@
 #include "GrRect.h"
 #include "GrRefCnt.h"
 #include "GrTexture.h"
+#include "GrClipMaskManager.h"
 
 class GrContext;
 class GrIndexBufferAllocPool;
@@ -51,66 +52,6 @@ struct GrGpuStats {
     uint32_t fRenderTargetCreateCnt;
 };
 
-/**
- * Scissoring needs special handling during stencil clip mask creation
- * since the creation process re-entrantly invokes setupClipAndFlushState.
- * During this process the call stack is used to keep 
- * track of (and apply to the GPU) the current scissor settings.
- */
-struct ScissoringSettings {
-    bool    fEnableScissoring;
-    GrIRect fScissorRect;
-
-    void setupScissoring(GrGpu* gpu);
-};
-
-/**
- * The clip mask creator handles the generation of the clip mask. If anti 
- * aliasing is requested it will (in the future) generate a single channel 
- * (8bit) mask. If no anti aliasing is requested it will generate a 1-bit 
- * mask in the stencil buffer. In the non anti-aliasing case, if the clip
- * mask can be represented as a rectangle then scissoring is used. In all
- * cases scissoring is used to bound the range of the clip mask.
- */
-class GrClipMaskManager {
-public:
-    GrClipMaskManager()
-        : fClipMaskInStencil(false)
-        , fPathRendererChain(NULL) {
-    }
-
-    bool createClipMask(GrGpu* gpu, 
-                        const GrClip& clip, 
-                        ScissoringSettings* scissorSettings);
-
-    void freeResources();
-
-    bool isClipInStencil() const { return fClipMaskInStencil; }
-
-    void resetMask() {
-        fClipMaskInStencil = false;
-    }
-
-protected:
-private:
-    bool fClipMaskInStencil;        // is the clip mask in the stencil buffer?
-
-    // must be instantiated after GrGpu object has been given its owning
-    // GrContext ptr. (GrGpu is constructed first then handed off to GrContext).
-    GrPathRendererChain*        fPathRendererChain;
-
-    bool createStencilClipMask(GrGpu* gpu, 
-                               const GrClip& clip, 
-                               const GrRect& bounds,
-                               ScissoringSettings* scissorSettings);
-
-    // determines the path renderer used to draw a clip path element.
-    GrPathRenderer* getClipPathRenderer(GrGpu* gpu,
-                                        const SkPath& path, 
-                                        GrPathFill fill);
-
-};
-
 class GrGpu : public GrDrawTarget {
 
 public: