kc3-lang/angle/src/libGLESv2/Texture.h

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• Author : apatrick@chromium.org
  Date : 2012-04-03 18:20:18
  Hash : 3b130253
  Message : Make Image::lock and unlock private and call them from Image::loadData. This is because I want loadData to be able to decide whether to use LockRect/UnlockRect or UpdateSurface as the method to load the data, depending on whether the Images are backed by textures in the default pool or not. I think it actually cleans up the code a bit. Also, fixed a bug in subImageCompressed. The associated WebGL conformance test now passes. Review URL: https://codereview.appspot.com/5948043 git-svn-id: https://angleproject.googlecode.com/svn/trunk@1013 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/Texture.h

• //
  // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // Texture.h: Defines the abstract gl::Texture class and its concrete derived
  // classes Texture2D and TextureCubeMap. Implements GL texture objects and
  // related functionality. [OpenGL ES 2.0.24] section 3.7 page 63.
  
  #ifndef LIBGLESV2_TEXTURE_H_
  #define LIBGLESV2_TEXTURE_H_
  
  #include <vector>
  
  #define GL_APICALL
  #include <GLES2/gl2.h>
  #include <d3d9.h>
  
  #include "common/debug.h"
  #include "common/RefCountObject.h"
  #include "libGLESv2/Renderbuffer.h"
  #include "libGLESv2/utilities.h"
  
  namespace egl
  {
  class Surface;
  }
  
  namespace gl
  {
  class Blit;
  class Framebuffer;
  
  enum
  {
      // These are the maximums the implementation can support
      // The actual GL caps are limited by the device caps
      // and should be queried from the Context
      IMPLEMENTATION_MAX_TEXTURE_SIZE = 16384,
      IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE = 16384,
  
      IMPLEMENTATION_MAX_TEXTURE_LEVELS = 15   // 1+log2 of MAX_TEXTURE_SIZE
  };
  
  class Image
  {
    public:
      Image();
      ~Image();
  
      bool redefine(GLenum format, GLsizei width, GLsizei height, GLenum type, bool forceRelease);
      void markDirty() {mDirty = true;}
      void markClean() {mDirty = false;}
  
      bool isRenderableFormat() const;
      D3DFORMAT getD3DFormat() const;
  
      GLsizei getWidth() const {return mWidth;}
      GLsizei getHeight() const {return mHeight;}
      GLenum getFormat() const {return mFormat;}
      GLenum getType() const {return mType;}
      bool isDirty() const {return mSurface && mDirty;}
      IDirect3DSurface9 *getSurface();
  
      void setManagedSurface(IDirect3DSurface9 *surface);
      void updateSurface(IDirect3DSurface9 *dest, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height);
  
      void loadData(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum type,
                    GLint unpackAlignment, const void *input);
  
      void loadAlphaData(GLsizei width, GLsizei height,
                         int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadAlphaFloatData(GLsizei width, GLsizei height,
                              int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadAlphaHalfFloatData(GLsizei width, GLsizei height,
                                  int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadLuminanceData(GLsizei width, GLsizei height,
                             int inputPitch, const void *input, size_t outputPitch, void *output, bool native) const;
      void loadLuminanceFloatData(GLsizei width, GLsizei height,
                                  int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadLuminanceHalfFloatData(GLsizei width, GLsizei height,
                                      int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadLuminanceAlphaData(GLsizei width, GLsizei height,
                                  int inputPitch, const void *input, size_t outputPitch, void *output, bool native) const;
      void loadLuminanceAlphaFloatData(GLsizei width, GLsizei height,
                                       int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadLuminanceAlphaHalfFloatData(GLsizei width, GLsizei height,
                                           int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBUByteData(GLsizei width, GLsizei height,
                            int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGB565Data(GLsizei width, GLsizei height,
                          int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBFloatData(GLsizei width, GLsizei height,
                            int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBHalfFloatData(GLsizei width, GLsizei height,
                                int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBAUByteDataSSE2(GLsizei width, GLsizei height,
                                 int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBAUByteData(GLsizei width, GLsizei height,
                             int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBA4444Data(GLsizei width, GLsizei height,
                            int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBA5551Data(GLsizei width, GLsizei height,
                            int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBAFloatData(GLsizei width, GLsizei height,
                             int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadRGBAHalfFloatData(GLsizei width, GLsizei height,
                                 int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadBGRAData(GLsizei width, GLsizei height,
                        int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadCompressedData(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
                              const void *input);
      void loadDXT1Data(GLsizei width, GLsizei height,
                        int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadDXT3Data(GLsizei width, GLsizei height,
                        int inputPitch, const void *input, size_t outputPitch, void *output) const;
      void loadDXT5Data(GLsizei width, GLsizei height,
                        int inputPitch, const void *input, size_t outputPitch, void *output) const;
  
      void copy(GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, IDirect3DSurface9 *renderTarget);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Image);
  
      void createSurface();
  
      HRESULT lock(D3DLOCKED_RECT *lockedRect, const RECT *rect);
      void unlock();
  
      GLsizei mWidth;
      GLsizei mHeight;
      GLenum mFormat;
      GLenum mType;
  
      bool mDirty;
  
      D3DPOOL mD3DPool;   // can only be D3DPOOL_SYSTEMMEM or D3DPOOL_MANAGED since it needs to be lockable.
      D3DFORMAT mD3DFormat;
  
      IDirect3DSurface9 *mSurface;
  };
  
  class TextureStorage
  {
    public:
      explicit TextureStorage(bool renderTarget);
  
      virtual ~TextureStorage();
  
      bool isRenderTarget() const;
      bool isManaged() const;
      D3DPOOL getPool() const;
      unsigned int getTextureSerial() const;
      virtual unsigned int getRenderTargetSerial(GLenum target) const = 0;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(TextureStorage);
  
      const bool mRenderTarget;
      const D3DPOOL mD3DPool;
  
      const unsigned int mTextureSerial;
      static unsigned int issueTextureSerial();
  
      static unsigned int mCurrentTextureSerial;
  };
  
  class Texture : public RefCountObject
  {
    public:
      explicit Texture(GLuint id);
  
      virtual ~Texture();
  
      virtual void addProxyRef(const Renderbuffer *proxy) = 0;
      virtual void releaseProxy(const Renderbuffer *proxy) = 0;
  
      virtual GLenum getTarget() const = 0;
  
      bool setMinFilter(GLenum filter);
      bool setMagFilter(GLenum filter);
      bool setWrapS(GLenum wrap);
      bool setWrapT(GLenum wrap);
      bool setUsage(GLenum usage);
  
      GLenum getMinFilter() const;
      GLenum getMagFilter() const;
      GLenum getWrapS() const;
      GLenum getWrapT() const;
      GLenum getUsage() const;
  
      virtual GLsizei getWidth(GLint level) const = 0;
      virtual GLsizei getHeight(GLint level) const = 0;
      virtual GLenum getInternalFormat() const = 0;
      virtual GLenum getType() const = 0;
      virtual D3DFORMAT getD3DFormat() const = 0;
  
      virtual bool isSamplerComplete() const = 0;
      virtual bool isCompressed() const = 0;
  
      IDirect3DBaseTexture9 *getTexture();
      virtual Renderbuffer *getRenderbuffer(GLenum target) = 0;
  
      virtual void generateMipmaps() = 0;
      virtual void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source) = 0;
  
      bool hasDirtyParameters() const;
      bool hasDirtyImages() const;
      void resetDirty();
      unsigned int getTextureSerial();
      unsigned int getRenderTargetSerial(GLenum target);
  
      bool isImmutable() const;
  
      static const GLuint INCOMPLETE_TEXTURE_ID = static_cast<GLuint>(-1);   // Every texture takes an id at creation time. The value is arbitrary because it is never registered with the resource manager.
  
    protected:
      friend class RenderbufferTexture;
  
      void setImage(GLint unpackAlignment, const void *pixels, Image *image);
      bool subImage(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels, Image *image);
      void setCompressedImage(GLsizei imageSize, const void *pixels, Image *image);
      bool subImageCompressed(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels, Image *image);
  
      GLint creationLevels(GLsizei width, GLsizei height) const;
      GLint creationLevels(GLsizei size) const;
  
      virtual IDirect3DBaseTexture9 *getBaseTexture() const = 0;
      virtual void createTexture() = 0;
      virtual void updateTexture() = 0;
      virtual void convertToRenderTarget() = 0;
      virtual IDirect3DSurface9 *getRenderTarget(GLenum target) = 0;
  
      int levelCount() const;
  
      static Blit *getBlitter();
      static bool copyToRenderTarget(IDirect3DSurface9 *dest, IDirect3DSurface9 *source, bool fromManaged);
  
      GLenum mMinFilter;
      GLenum mMagFilter;
      GLenum mWrapS;
      GLenum mWrapT;
      bool mDirtyParameters;
      GLenum mUsage;
  
      bool mDirtyImages;
  
      bool mImmutable;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Texture);
  
      virtual TextureStorage *getStorage(bool renderTarget) = 0;
  };
  
  class TextureStorage2D : public TextureStorage
  {
    public:
      explicit TextureStorage2D(IDirect3DTexture9 *surfaceTexture);
      TextureStorage2D(int levels, D3DFORMAT format, int width, int height, bool renderTarget);
  
      virtual ~TextureStorage2D();
  
      IDirect3DSurface9 *getSurfaceLevel(int level);
      IDirect3DBaseTexture9 *getBaseTexture() const;
  
      virtual unsigned int getRenderTargetSerial(GLenum target) const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(TextureStorage2D);
  
      IDirect3DTexture9 *mTexture;
      const unsigned int mRenderTargetSerial;
  };
  
  class Texture2D : public Texture
  {
    public:
      explicit Texture2D(GLuint id);
  
      ~Texture2D();
  
      void addProxyRef(const Renderbuffer *proxy);
      void releaseProxy(const Renderbuffer *proxy);
  
      virtual GLenum getTarget() const;
  
      virtual GLsizei getWidth(GLint level) const;
      virtual GLsizei getHeight(GLint level) const;
      virtual GLenum getInternalFormat() const;
      virtual GLenum getType() const;
      virtual D3DFORMAT getD3DFormat() const;
  
      void setImage(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setCompressedImage(GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei imageSize, const void *pixels);
      void subImage(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void subImageCompressed(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels);
      void copyImage(GLint level, GLenum format, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source);
      virtual void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source);
      void storage(GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
  
      virtual bool isSamplerComplete() const;
      virtual bool isCompressed() const;
      virtual void bindTexImage(egl::Surface *surface);
      virtual void releaseTexImage();
  
      virtual void generateMipmaps();
  
      virtual Renderbuffer *getRenderbuffer(GLenum target);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Texture2D);
  
      virtual IDirect3DBaseTexture9 *getBaseTexture() const;
      virtual void createTexture();
      virtual void updateTexture();
      virtual void convertToRenderTarget();
      virtual IDirect3DSurface9 *getRenderTarget(GLenum target);
      virtual TextureStorage *getStorage(bool renderTarget);
  
      bool isMipmapComplete() const;
  
      void redefineImage(GLint level, GLenum format, GLsizei width, GLsizei height, GLenum type);
      void commitRect(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height);
  
      Image mImageArray[IMPLEMENTATION_MAX_TEXTURE_LEVELS];
  
      TextureStorage2D *mTexStorage;
      egl::Surface *mSurface;
  
      // A specific internal reference count is kept for colorbuffer proxy references,
      // because, as the renderbuffer acting as proxy will maintain a binding pointer
      // back to this texture, there would be a circular reference if we used a binding
      // pointer here. This reference count will cause the pointer to be set to NULL if
      // the count drops to zero, but will not cause deletion of the Renderbuffer.
      Renderbuffer *mColorbufferProxy;
      unsigned int mProxyRefs;
  };
  
  class TextureStorageCubeMap : public TextureStorage
  {
    public:
      TextureStorageCubeMap(int levels, D3DFORMAT format, int size, bool renderTarget);
  
      virtual ~TextureStorageCubeMap();
  
      IDirect3DSurface9 *getCubeMapSurface(GLenum faceTarget, int level);
      IDirect3DBaseTexture9 *getBaseTexture() const;
  
      virtual unsigned int getRenderTargetSerial(GLenum target) const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(TextureStorageCubeMap);
  
      IDirect3DCubeTexture9 *mTexture;
      const unsigned int mFirstRenderTargetSerial;
  };
  
  class TextureCubeMap : public Texture
  {
    public:
      explicit TextureCubeMap(GLuint id);
  
      ~TextureCubeMap();
  
      void addProxyRef(const Renderbuffer *proxy);
      void releaseProxy(const Renderbuffer *proxy);
  
      virtual GLenum getTarget() const;
      
      virtual GLsizei getWidth(GLint level) const;
      virtual GLsizei getHeight(GLint level) const;
      virtual GLenum getInternalFormat() const;
      virtual GLenum getType() const;
      virtual D3DFORMAT getD3DFormat() const;
  
      void setImagePosX(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setImageNegX(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setImagePosY(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setImageNegY(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setImagePosZ(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void setImageNegZ(GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
  
      void setCompressedImage(GLenum face, GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei imageSize, const void *pixels);
  
      void subImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void subImageCompressed(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels);
      void copyImage(GLenum target, GLint level, GLenum format, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source);
      virtual void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source);
      void storage(GLsizei levels, GLenum internalformat, GLsizei size);
  
      virtual bool isSamplerComplete() const;
      virtual bool isCompressed() const;
  
      virtual void generateMipmaps();
  
      virtual Renderbuffer *getRenderbuffer(GLenum target);
  
      static unsigned int faceIndex(GLenum face);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(TextureCubeMap);
  
      virtual IDirect3DBaseTexture9 *getBaseTexture() const;
      virtual void createTexture();
      virtual void updateTexture();
      virtual void convertToRenderTarget();
      virtual IDirect3DSurface9 *getRenderTarget(GLenum target);
      virtual TextureStorage *getStorage(bool renderTarget);
  
      bool isCubeComplete() const;
      bool isMipmapCubeComplete() const;
  
      void setImage(int faceIndex, GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels);
      void commitRect(int faceIndex, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height);
      void redefineImage(int faceIndex, GLint level, GLenum format, GLsizei width, GLsizei height, GLenum type);
  
      Image mImageArray[6][IMPLEMENTATION_MAX_TEXTURE_LEVELS];
  
      TextureStorageCubeMap *mTexStorage;
  
      // A specific internal reference count is kept for colorbuffer proxy references,
      // because, as the renderbuffer acting as proxy will maintain a binding pointer
      // back to this texture, there would be a circular reference if we used a binding
      // pointer here. This reference count will cause the pointer to be set to NULL if
      // the count drops to zero, but will not cause deletion of the Renderbuffer.
      Renderbuffer *mFaceProxies[6];
      unsigned int *mFaceProxyRefs[6];
  };
  }
  
  #endif   // LIBGLESV2_TEXTURE_H_