Initial split up of Debug Interface into separate files

http://codereview.appspot.com/5979048/



git-svn-id: http://skia.googlecode.com/svn/trunk@3616 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 84 insertions, 0 deletions

diff --git a/src/gpu/gl/debug/GrBufferObj.h b/src/gpu/gl/debug/GrBufferObj.h
new file mode 100644
index 0000000000..e4cfee2a0e
--- /dev/null
+++ b/src/gpu/gl/debug/GrBufferObj.h
@@ -0,0 +1,84 @@
+
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrBufferObj_DEFINED
+#define GrBufferObj_DEFINED
+
+#include "GrFakeRefObj.h"
+
+////////////////////////////////////////////////////////////////////////////////
+class GrBufferObj : public GrFakeRefObj {
+    GR_DEFINE_CREATOR(GrBufferObj);
+
+public:
+    GrBufferObj() 
+        : GrFakeRefObj()
+        , fDataPtr(NULL)
+        , fMapped(false)
+        , fBound(false)
+        , fSize(0)
+        , fUsage(GR_GL_STATIC_DRAW) {
+    }
+    virtual ~GrBufferObj() {
+        delete[] fDataPtr;
+    }
+
+    void access() {
+        // cannot access the buffer if it is currently mapped
+        GrAlwaysAssert(!fMapped);
+    }
+
+    void setMapped()        { fMapped = true; }
+    void resetMapped()      { fMapped = false; }
+    bool getMapped() const  { return fMapped; }
+
+    void setBound()         { fBound = true; }
+    void resetBound()       { fBound = false; }
+    bool getBound() const   { return fBound; }
+
+    void allocate(GrGLint size, const GrGLchar *dataPtr) {
+        GrAlwaysAssert(size >= 0);
+
+        // delete pre-existing data
+        delete[] fDataPtr;
+
+        fSize = size;
+        fDataPtr = new GrGLchar[size];
+        if (dataPtr) {
+            memcpy(fDataPtr, dataPtr, fSize);
+        }
+        // TODO: w/ no dataPtr the data is unitialized - this could be tracked
+    }
+    GrGLint getSize() const { return fSize; }
+    GrGLchar *getDataPtr()  { return fDataPtr; }
+
+    GrGLint getUsage() const { return fUsage; }
+    void setUsage(GrGLint usage) { fUsage = usage; }
+
+    virtual void deleteAction() SK_OVERRIDE {
+
+        // buffers are automatically unmapped when deleted
+        this->resetMapped();
+
+        this->INHERITED::deleteAction();
+    }
+
+
+protected:
+private:
+
+    GrGLchar*   fDataPtr;
+    bool        fMapped;       // is the buffer object mapped via "glMapBuffer"?
+    bool        fBound;        // is the buffer object bound via "glBindBuffer"?
+    GrGLint     fSize;         // size in bytes
+    GrGLint     fUsage;        // one of: GL_STREAM_DRAW, GL_STATIC_DRAW, GL_DYNAMIC_DRAW
+
+    typedef GrFakeRefObj INHERITED;
+};
+
+#endif // GrBufferObj_DEFINED