1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/renderer/TextureStorage.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,110 @@
1.4 +//
1.5 +// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
1.6 +// Use of this source code is governed by a BSD-style license that can be
1.7 +// found in the LICENSE file.
1.8 +//
1.9 +
1.10 +// TextureStorage.h: Defines the abstract rx::TextureStorageInterface class and its concrete derived
1.11 +// classes TextureStorageInterface2D and TextureStorageInterfaceCube, which act as the interface to the
1.12 +// GPU-side texture.
1.13 +
1.14 +#ifndef LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
1.15 +#define LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
1.16 +
1.17 +#include "common/debug.h"
1.18 +
1.19 +namespace rx
1.20 +{
1.21 +class Renderer;
1.22 +class SwapChain;
1.23 +class RenderTarget;
1.24 +class Blit;
1.25 +
1.26 +class TextureStorage
1.27 +{
1.28 + public:
1.29 + TextureStorage() {};
1.30 + virtual ~TextureStorage() {};
1.31 +
1.32 + virtual int getLodOffset() const = 0;
1.33 + virtual bool isRenderTarget() const = 0;
1.34 + virtual bool isManaged() const = 0;
1.35 + virtual int levelCount() = 0;
1.36 +
1.37 + virtual RenderTarget *getRenderTarget() = 0;
1.38 + virtual RenderTarget *getRenderTarget(GLenum faceTarget) = 0;
1.39 + virtual void generateMipmap(int level) = 0;
1.40 + virtual void generateMipmap(int face, int level) = 0;
1.41 +
1.42 + private:
1.43 + DISALLOW_COPY_AND_ASSIGN(TextureStorage);
1.44 +
1.45 +};
1.46 +
1.47 +class TextureStorageInterface
1.48 +{
1.49 + public:
1.50 + TextureStorageInterface();
1.51 + virtual ~TextureStorageInterface();
1.52 +
1.53 + TextureStorage *getStorageInstance() { return mInstance; }
1.54 +
1.55 + unsigned int getTextureSerial() const;
1.56 + virtual unsigned int getRenderTargetSerial(GLenum target) const = 0;
1.57 +
1.58 + virtual int getLodOffset() const;
1.59 + virtual bool isRenderTarget() const;
1.60 + virtual bool isManaged() const;
1.61 + virtual int levelCount();
1.62 +
1.63 + protected:
1.64 + TextureStorage *mInstance;
1.65 +
1.66 + private:
1.67 + DISALLOW_COPY_AND_ASSIGN(TextureStorageInterface);
1.68 +
1.69 + const unsigned int mTextureSerial;
1.70 + static unsigned int issueTextureSerial();
1.71 +
1.72 + static unsigned int mCurrentTextureSerial;
1.73 +};
1.74 +
1.75 +class TextureStorageInterface2D : public TextureStorageInterface
1.76 +{
1.77 + public:
1.78 + TextureStorageInterface2D(Renderer *renderer, SwapChain *swapchain);
1.79 + TextureStorageInterface2D(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, GLsizei width, GLsizei height);
1.80 + virtual ~TextureStorageInterface2D();
1.81 +
1.82 + void generateMipmap(int level);
1.83 + RenderTarget *getRenderTarget() const;
1.84 +
1.85 + virtual unsigned int getRenderTargetSerial(GLenum target) const;
1.86 +
1.87 + private:
1.88 + DISALLOW_COPY_AND_ASSIGN(TextureStorageInterface2D);
1.89 +
1.90 + const unsigned int mRenderTargetSerial;
1.91 +};
1.92 +
1.93 +class TextureStorageInterfaceCube : public TextureStorageInterface
1.94 +{
1.95 + public:
1.96 + TextureStorageInterfaceCube(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, int size);
1.97 + virtual ~TextureStorageInterfaceCube();
1.98 +
1.99 + void generateMipmap(int face, int level);
1.100 + RenderTarget *getRenderTarget(GLenum faceTarget) const;
1.101 +
1.102 + virtual unsigned int getRenderTargetSerial(GLenum target) const;
1.103 +
1.104 + private:
1.105 + DISALLOW_COPY_AND_ASSIGN(TextureStorageInterfaceCube);
1.106 +
1.107 + const unsigned int mFirstRenderTargetSerial;
1.108 +};
1.109 +
1.110 +}
1.111 +
1.112 +#endif // LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
1.113 +
