| // |
| // Copyright (c) 2002-2012 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 "common/debug.h" |
| #include "common/RefCountObject.h" |
| #include "libGLESv2/renderer/Image.h" |
| #include "libGLESv2/renderer/TextureStorage.h" |
| #include "libGLESv2/Renderbuffer.h" |
| #include "libGLESv2/utilities.h" |
| #include "libGLESv2/angletypes.h" |
| |
| namespace egl |
| { |
| class Surface; |
| } |
| |
| namespace rx |
| { |
| class Renderer; |
| } |
| |
| namespace gl |
| { |
| 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 Texture : public RefCountObject |
| { |
| public: |
| Texture(rx::Renderer *renderer, 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 setMaxAnisotropy(float textureMaxAnisotropy, float contextMaxAnisotropy); |
| bool setUsage(GLenum usage); |
| |
| GLenum getMinFilter() const; |
| GLenum getMagFilter() const; |
| GLenum getWrapS() const; |
| GLenum getWrapT() const; |
| float getMaxAnisotropy() const; |
| int getLodOffset(); |
| void getSamplerState(SamplerState *sampler); |
| GLenum getUsage() const; |
| bool isMipmapFiltered() const; |
| |
| virtual bool isSamplerComplete() const = 0; |
| |
| rx::TextureStorageInterface *getNativeTexture(); |
| 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: |
| void setImage(GLint unpackAlignment, const void *pixels, rx::Image *image); |
| bool subImage(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels, rx::Image *image); |
| void setCompressedImage(GLsizei imageSize, const void *pixels, rx::Image *image); |
| bool subImageCompressed(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels, rx::Image *image); |
| |
| GLint creationLevels(GLsizei width, GLsizei height) const; |
| GLint creationLevels(GLsizei size) const; |
| |
| virtual void createTexture() = 0; |
| virtual void updateTexture() = 0; |
| virtual void convertToRenderTarget() = 0; |
| virtual rx::RenderTarget *getRenderTarget(GLenum target) = 0; |
| |
| virtual int levelCount() = 0; |
| |
| rx::Renderer *mRenderer; |
| |
| SamplerState mSamplerState; |
| bool mDirtyParameters; |
| GLenum mUsage; |
| |
| bool mDirtyImages; |
| |
| bool mImmutable; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(Texture); |
| |
| virtual rx::TextureStorageInterface *getStorage(bool renderTarget) = 0; |
| }; |
| |
| class Texture2D : public Texture |
| { |
| public: |
| Texture2D(rx::Renderer *renderer, GLuint id); |
| |
| ~Texture2D(); |
| |
| void addProxyRef(const Renderbuffer *proxy); |
| void releaseProxy(const Renderbuffer *proxy); |
| |
| virtual GLenum getTarget() const; |
| |
| GLsizei getWidth(GLint level) const; |
| GLsizei getHeight(GLint level) const; |
| GLenum getInternalFormat(GLint level) const; |
| GLenum getActualFormat(GLint level) const; |
| bool isCompressed(GLint level) const; |
| bool isDepth(GLint level) 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 void bindTexImage(egl::Surface *surface); |
| virtual void releaseTexImage(); |
| |
| virtual void generateMipmaps(); |
| |
| virtual Renderbuffer *getRenderbuffer(GLenum target); |
| |
| protected: |
| friend class RenderbufferTexture2D; |
| virtual rx::RenderTarget *getRenderTarget(GLenum target); |
| virtual rx::RenderTarget *getDepthStencil(GLenum target); |
| virtual int levelCount(); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(Texture2D); |
| |
| virtual void createTexture(); |
| virtual void updateTexture(); |
| virtual void convertToRenderTarget(); |
| virtual rx::TextureStorageInterface *getStorage(bool renderTarget); |
| |
| bool isMipmapComplete() const; |
| |
| void redefineImage(GLint level, GLint internalformat, GLsizei width, GLsizei height); |
| void commitRect(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height); |
| |
| rx::Image *mImageArray[IMPLEMENTATION_MAX_TEXTURE_LEVELS]; |
| |
| rx::TextureStorageInterface2D *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 TextureCubeMap : public Texture |
| { |
| public: |
| TextureCubeMap(rx::Renderer *renderer, GLuint id); |
| |
| ~TextureCubeMap(); |
| |
| void addProxyRef(const Renderbuffer *proxy); |
| void releaseProxy(const Renderbuffer *proxy); |
| |
| virtual GLenum getTarget() const; |
| |
| GLsizei getWidth(GLenum target, GLint level) const; |
| GLsizei getHeight(GLenum target, GLint level) const; |
| GLenum getInternalFormat(GLenum target, GLint level) const; |
| GLenum getActualFormat(GLenum target, GLint level) const; |
| bool isCompressed(GLenum target, GLint level) 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 void generateMipmaps(); |
| |
| virtual Renderbuffer *getRenderbuffer(GLenum target); |
| |
| static unsigned int faceIndex(GLenum face); |
| |
| protected: |
| friend class RenderbufferTextureCubeMap; |
| virtual rx::RenderTarget *getRenderTarget(GLenum target); |
| virtual int levelCount(); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TextureCubeMap); |
| |
| virtual void createTexture(); |
| virtual void updateTexture(); |
| virtual void convertToRenderTarget(); |
| virtual rx::TextureStorageInterface *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, GLint internalformat, GLsizei width, GLsizei height); |
| |
| rx::Image *mImageArray[6][IMPLEMENTATION_MAX_TEXTURE_LEVELS]; |
| |
| rx::TextureStorageInterfaceCube *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_ |