michael@0: 
michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef GrDebugGL_DEFINED
michael@0: #define GrDebugGL_DEFINED
michael@0: 
michael@0: #include "SkTArray.h"
michael@0: #include "gl/GrGLInterface.h"
michael@0: 
michael@0: class GrBufferObj;
michael@0: class GrFakeRefObj;
michael@0: class GrFrameBufferObj;
michael@0: class GrProgramObj;
michael@0: class GrRenderBufferObj;
michael@0: class GrTextureObj;
michael@0: class GrTextureUnitObj;
michael@0: class GrVertexArrayObj;
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // This is the main debugging object. It is a singleton and keeps track of
michael@0: // all the other debug objects.
michael@0: class GrDebugGL {
michael@0: public:
michael@0:     enum GrObjTypes {
michael@0:         kTexture_ObjTypes = 0,
michael@0:         kBuffer_ObjTypes,
michael@0:         kRenderBuffer_ObjTypes,
michael@0:         kFrameBuffer_ObjTypes,
michael@0:         kShader_ObjTypes,
michael@0:         kProgram_ObjTypes,
michael@0:         kTextureUnit_ObjTypes,
michael@0:         kVertexArray_ObjTypes,
michael@0:         kObjTypeCount
michael@0:     };
michael@0: 
michael@0:     GrFakeRefObj *createObj(GrObjTypes type) {
michael@0:         GrFakeRefObj *temp = (*gFactoryFunc[type])();
michael@0: 
michael@0:         fObjects.push_back(temp);
michael@0: 
michael@0:         return temp;
michael@0:     }
michael@0: 
michael@0:     GrFakeRefObj *findObject(GrGLuint ID, GrObjTypes type);
michael@0: 
michael@0:     GrGLuint getMaxTextureUnits() const { return kDefaultMaxTextureUnits; }
michael@0: 
michael@0:     void setCurTextureUnit(GrGLuint curTextureUnit) { fCurTextureUnit = curTextureUnit; }
michael@0:     GrGLuint getCurTextureUnit() const { return fCurTextureUnit; }
michael@0: 
michael@0:     GrTextureUnitObj *getTextureUnit(int iUnit) {
michael@0:         GrAlwaysAssert(0 <= iUnit && kDefaultMaxTextureUnits > iUnit);
michael@0: 
michael@0:         return fTextureUnits[iUnit];
michael@0:     }
michael@0: 
michael@0:     void setArrayBuffer(GrBufferObj *arrayBuffer);
michael@0:     GrBufferObj *getArrayBuffer()                   { return fArrayBuffer; }
michael@0: 
michael@0:     void setElementArrayBuffer(GrBufferObj *elementArrayBuffer);
michael@0:     GrBufferObj *getElementArrayBuffer()                            { return fElementArrayBuffer; }
michael@0: 
michael@0:     void setVertexArray(GrVertexArrayObj* vertexArray);
michael@0:     GrVertexArrayObj* getVertexArray() { return fVertexArray; }
michael@0: 
michael@0:     void setTexture(GrTextureObj *texture);
michael@0: 
michael@0:     void setFrameBuffer(GrFrameBufferObj *frameBuffer);
michael@0:     GrFrameBufferObj *getFrameBuffer()                  { return fFrameBuffer; }
michael@0: 
michael@0:     void setRenderBuffer(GrRenderBufferObj *renderBuffer);
michael@0:     GrRenderBufferObj *getRenderBuffer()                  { return fRenderBuffer; }
michael@0: 
michael@0:     void useProgram(GrProgramObj *program);
michael@0: 
michael@0:     void setPackRowLength(GrGLint packRowLength) {
michael@0:         fPackRowLength = packRowLength;
michael@0:     }
michael@0:     GrGLint getPackRowLength() const { return fPackRowLength; }
michael@0: 
michael@0:     void setUnPackRowLength(GrGLint unPackRowLength) {
michael@0:         fUnPackRowLength = unPackRowLength;
michael@0:     }
michael@0:     GrGLint getUnPackRowLength() const { return fUnPackRowLength; }
michael@0: 
michael@0:     static GrDebugGL *getInstance() {
michael@0:         // someone should admit to actually using this class
michael@0:         SkASSERT(0 < gStaticRefCount);
michael@0: 
michael@0:         if (NULL == gObj) {
michael@0:             gObj = SkNEW(GrDebugGL);
michael@0:         }
michael@0: 
michael@0:         return gObj;
michael@0:     }
michael@0: 
michael@0:     void report() const;
michael@0: 
michael@0:     static void staticRef() {
michael@0:         gStaticRefCount++;
michael@0:     }
michael@0: 
michael@0:     static void staticUnRef() {
michael@0:         SkASSERT(gStaticRefCount > 0);
michael@0:         gStaticRefCount--;
michael@0:         if (0 == gStaticRefCount) {
michael@0:             SkDELETE(gObj);
michael@0:             gObj = NULL;
michael@0:         }
michael@0:     }
michael@0: 
michael@0: protected:
michael@0: 
michael@0: private:
michael@0:     // the OpenGLES 2.0 spec says this must be >= 2
michael@0:     static const GrGLint kDefaultMaxTextureUnits = 8;
michael@0: 
michael@0:     GrGLint         fPackRowLength;
michael@0:     GrGLint         fUnPackRowLength;
michael@0:     GrGLuint        fCurTextureUnit;
michael@0:     GrBufferObj*    fArrayBuffer;
michael@0:     GrBufferObj*    fElementArrayBuffer;
michael@0:     GrFrameBufferObj* fFrameBuffer;
michael@0:     GrRenderBufferObj* fRenderBuffer;
michael@0:     GrProgramObj* fProgram;
michael@0:     GrTextureObj* fTexture;
michael@0:     GrTextureUnitObj *fTextureUnits[kDefaultMaxTextureUnits];
michael@0:     GrVertexArrayObj *fVertexArray;
michael@0: 
michael@0:     typedef GrFakeRefObj *(*Create)();
michael@0: 
michael@0:     static Create gFactoryFunc[kObjTypeCount];
michael@0: 
michael@0:     static GrDebugGL* gObj;
michael@0:     static int gStaticRefCount;
michael@0: 
michael@0:     // global store of all objects
michael@0:     SkTArray<GrFakeRefObj *> fObjects;
michael@0: 
michael@0:     GrDebugGL();
michael@0:     ~GrDebugGL();
michael@0: };
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // Helper macro to make creating an object (where you need to get back a derived
michael@0: // type) easier
michael@0: #define GR_CREATE(className, classEnum)                     \
michael@0:     reinterpret_cast<className *>(GrDebugGL::getInstance()->createObj(classEnum))
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // Helper macro to make finding objects less painful
michael@0: #define GR_FIND(id, className, classEnum)                   \
michael@0:     reinterpret_cast<className *>(GrDebugGL::getInstance()->findObject(id, classEnum))
michael@0: 
michael@0: #endif // GrDebugGL_DEFINED