Squash the Texture attachment classes into one.

BUG=angle:732

Change-Id: Ib6b26fe1351bc09e729178f6ec8b8d2ec1f7ff58
Reviewed-on: https://chromium-review.googlesource.com/213970
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>

3 files changed, 26 insertions, 165 deletions

diff --git a/src/libGLESv2/Framebuffer.cpp b/src/libGLESv2/Framebuffer.cpp
index 6247b5a0..8db41908 100644
--- a/src/libGLESv2/Framebuffer.cpp
+++ b/src/libGLESv2/Framebuffer.cpp
@@ -69,8 +69,7 @@ FramebufferAttachment *Framebuffer::createAttachment(GLenum binding, GLenum type
             Texture *texture = context->getTexture(handle);
             if (texture && texture->getTarget() == GL_TEXTURE_2D)
             {
-                Texture2D *tex2D = static_cast<Texture2D*>(texture);
-                return new Texture2DAttachment(binding, tex2D, level);
+                return new TextureAttachment(binding, texture, ImageIndex::Make2D(level));
             }
             else
             {
@@ -88,8 +87,7 @@ FramebufferAttachment *Framebuffer::createAttachment(GLenum binding, GLenum type
             Texture *texture = context->getTexture(handle);
             if (texture && texture->getTarget() == GL_TEXTURE_CUBE_MAP)
             {
-                TextureCubeMap *texCube = static_cast<TextureCubeMap*>(texture);
-                return new TextureCubeMapAttachment(binding, texCube, type, level);
+                return new TextureAttachment(binding, texture, ImageIndex::MakeCube(type, level));
             }
             else
             {
@@ -102,8 +100,7 @@ FramebufferAttachment *Framebuffer::createAttachment(GLenum binding, GLenum type
             Texture *texture = context->getTexture(handle);
             if (texture && texture->getTarget() == GL_TEXTURE_3D)
             {
-                Texture3D *tex3D = static_cast<Texture3D*>(texture);
-                return new Texture3DAttachment(binding, tex3D, level, layer);
+                return new TextureAttachment(binding, texture, ImageIndex::Make3D(level, layer));
             }
             else
             {
@@ -116,8 +113,7 @@ FramebufferAttachment *Framebuffer::createAttachment(GLenum binding, GLenum type
             Texture *texture = context->getTexture(handle);
             if (texture && texture->getTarget() == GL_TEXTURE_2D_ARRAY)
             {
-                Texture2DArray *tex2DArray = static_cast<Texture2DArray*>(texture);
-                return new Texture2DArrayAttachment(binding, tex2DArray, level, layer);
+                return new TextureAttachment(binding, texture, ImageIndex::Make2DArray(level, layer));
             }
             else
             {
diff --git a/src/libGLESv2/FramebufferAttachment.cpp b/src/libGLESv2/FramebufferAttachment.cpp
index a354a89d..971f188c 100644
--- a/src/libGLESv2/FramebufferAttachment.cpp
+++ b/src/libGLESv2/FramebufferAttachment.cpp
@@ -78,14 +78,21 @@ bool FramebufferAttachment::isTexture() const
 
 ///// TextureAttachment Implementation ////////
 
-TextureAttachment::TextureAttachment(GLenum binding, const ImageIndex &index)
+TextureAttachment::TextureAttachment(GLenum binding, Texture *texture, const ImageIndex &index)
     : FramebufferAttachment(binding),
       mIndex(index)
-{}
+{
+    mTexture.set(texture);
+}
+
+TextureAttachment::~TextureAttachment()
+{
+    mTexture.set(NULL);
+}
 
 rx::TextureStorage *TextureAttachment::getTextureStorage()
 {
-    return getTexture()->getNativeTexture()->getStorageInstance();
+    return mTexture->getNativeTexture()->getStorageInstance();
 }
 
 GLsizei TextureAttachment::getSamples() const
@@ -95,32 +102,32 @@ GLsizei TextureAttachment::getSamples() const
 
 GLuint TextureAttachment::id() const
 {
-    return getTexture()->id();
+    return mTexture->id();
 }
 
 unsigned int TextureAttachment::getTextureSerial() const
 {
-    return getTexture()->getTextureSerial();
+    return mTexture->getTextureSerial();
 }
 
 GLsizei TextureAttachment::getWidth() const
 {
-    return getTexture()->getWidth(mIndex);
+    return mTexture->getWidth(mIndex);
 }
 
 GLsizei TextureAttachment::getHeight() const
 {
-    return getTexture()->getHeight(mIndex);
+    return mTexture->getHeight(mIndex);
 }
 
 GLenum TextureAttachment::getInternalFormat() const
 {
-    return getTexture()->getInternalFormat(mIndex);
+    return mTexture->getInternalFormat(mIndex);
 }
 
 GLenum TextureAttachment::getActualFormat() const
 {
-    return getTexture()->getActualFormat(mIndex);
+    return mTexture->getActualFormat(mIndex);
 }
 
 GLenum TextureAttachment::type() const
@@ -140,91 +147,12 @@ GLint TextureAttachment::layer() const
 
 rx::RenderTarget *TextureAttachment::getRenderTarget()
 {
-    return getTexture()->getRenderTarget(mIndex);
+    return mTexture->getRenderTarget(mIndex);
 }
 
 unsigned int TextureAttachment::getSerial() const
 {
-    return getTexture()->getRenderTargetSerial(mIndex);
-}
-
-///// Texture2DAttachment Implementation ////////
-
-Texture2DAttachment::Texture2DAttachment(GLenum binding, Texture2D *texture, GLint level)
-    : TextureAttachment(binding, ImageIndex::Make2D(level)),
-      mLevel(level)
-{
-    mTexture2D.set(texture);
-}
-
-Texture2DAttachment::~Texture2DAttachment()
-{
-    mTexture2D.set(NULL);
-}
-
-Texture *Texture2DAttachment::getTexture() const
-{
-    return mTexture2D.get();
-}
-
-///// TextureCubeMapAttachment Implementation ////////
-
-TextureCubeMapAttachment::TextureCubeMapAttachment(GLenum binding, TextureCubeMap *texture, GLenum faceTarget, GLint level)
-    : TextureAttachment(binding, ImageIndex::MakeCube(faceTarget, level)),
-      mFaceTarget(faceTarget),
-      mLevel(level)
-{
-    mTextureCubeMap.set(texture);
-}
-
-TextureCubeMapAttachment::~TextureCubeMapAttachment()
-{
-    mTextureCubeMap.set(NULL);
-}
-
-Texture *TextureCubeMapAttachment::getTexture() const
-{
-    return mTextureCubeMap.get();
-}
-
-///// Texture3DAttachment Implementation ////////
-
-Texture3DAttachment::Texture3DAttachment(GLenum binding, Texture3D *texture, GLint level, GLint layer)
-    : TextureAttachment(binding, ImageIndex::Make3D(level, layer)),
-      mLevel(level),
-      mLayer(layer)
-{
-    mTexture3D.set(texture);
-}
-
-Texture3DAttachment::~Texture3DAttachment()
-{
-    mTexture3D.set(NULL);
-}
-
-Texture *Texture3DAttachment::getTexture() const
-{
-    return mTexture3D.get();
-}
-
-////// Texture2DArrayAttachment Implementation //////
-
-Texture2DArrayAttachment::Texture2DArrayAttachment(GLenum binding, Texture2DArray *texture, GLint level, GLint layer)
-    : TextureAttachment(binding, ImageIndex::Make2DArray(level, layer)),
-      mLevel(level),
-      mLayer(layer)
-{
-    mTexture2DArray.set(texture);
-}
-
-Texture2DArrayAttachment::~Texture2DArrayAttachment()
-{
-    mTexture2DArray.set(NULL);
-}
-
-Texture *Texture2DArrayAttachment::getTexture() const
-{
-    return mTexture2DArray.get();
+    return mTexture->getRenderTargetSerial(mIndex);
 }
 
 ////// RenderbufferAttachment Implementation //////
diff --git a/src/libGLESv2/FramebufferAttachment.h b/src/libGLESv2/FramebufferAttachment.h
index 07a19ba6..4b827641 100644
--- a/src/libGLESv2/FramebufferAttachment.h
+++ b/src/libGLESv2/FramebufferAttachment.h
@@ -82,7 +82,8 @@ class FramebufferAttachment
 class TextureAttachment : public FramebufferAttachment
 {
   public:
-    TextureAttachment(GLenum binding, const ImageIndex &index);
+    TextureAttachment(GLenum binding, Texture *texture, const ImageIndex &index);
+    virtual ~TextureAttachment();
 
     rx::TextureStorage *getTextureStorage();
     virtual GLsizei getSamples() const;
@@ -101,75 +102,11 @@ class TextureAttachment : public FramebufferAttachment
     virtual rx::RenderTarget *getRenderTarget();
     virtual unsigned int getSerial() const;
 
-  protected:
-    virtual Texture *getTexture() const = 0;
-    ImageIndex mIndex;
-
   private:
     DISALLOW_COPY_AND_ASSIGN(TextureAttachment);
-};
-
-class Texture2DAttachment : public TextureAttachment
-{
-  public:
-    Texture2DAttachment(GLenum binding, Texture2D *texture, GLint level);
-
-    virtual ~Texture2DAttachment();
-    virtual Texture *getTexture() const;
-
-  private:
-    DISALLOW_COPY_AND_ASSIGN(Texture2DAttachment);
-
-    BindingPointer<Texture2D> mTexture2D;
-    const GLint mLevel;
-};
-
-class TextureCubeMapAttachment : public TextureAttachment
-{
-  public:
-    TextureCubeMapAttachment(GLenum binding, TextureCubeMap *texture, GLenum faceTarget, GLint level);
-
-    virtual ~TextureCubeMapAttachment();
-    virtual Texture *getTexture() const;
-
-  private:
-    DISALLOW_COPY_AND_ASSIGN(TextureCubeMapAttachment);
 
-    BindingPointer<TextureCubeMap> mTextureCubeMap;
-    const GLint mLevel;
-    const GLenum mFaceTarget;
-};
-
-class Texture3DAttachment : public TextureAttachment
-{
-  public:
-    Texture3DAttachment(GLenum binding, Texture3D *texture, GLint level, GLint layer);
-
-    virtual ~Texture3DAttachment();
-    virtual Texture *getTexture() const;
-
-  private:
-    DISALLOW_COPY_AND_ASSIGN(Texture3DAttachment);
-
-    BindingPointer<Texture3D> mTexture3D;
-    const GLint mLevel;
-    const GLint mLayer;
-};
-
-class Texture2DArrayAttachment : public TextureAttachment
-{
-  public:
-    Texture2DArrayAttachment(GLenum binding, Texture2DArray *texture, GLint level, GLint layer);
-
-    virtual ~Texture2DArrayAttachment();
-    virtual Texture *getTexture() const;
-
-  private:
-    DISALLOW_COPY_AND_ASSIGN(Texture2DArrayAttachment);
-
-    BindingPointer<Texture2DArray> mTexture2DArray;
-    const GLint mLevel;
-    const GLint mLayer;
+    BindingPointer<Texture> mTexture;
+    ImageIndex mIndex;
 };
 
 class RenderbufferAttachment : public FramebufferAttachment