1 // 2 // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 7 // Texture.h: Defines the abstract gl::Texture class and its concrete derived 8 // classes Texture2D and TextureCubeMap. Implements GL texture objects and 9 // related functionality. [OpenGL ES 2.0.24] section 3.7 page 63. 10 11 #ifndef LIBGLESV2_TEXTURE_H_ 12 #define LIBGLESV2_TEXTURE_H_ 13 14 #include "common/debug.h" 15 #include "common/RefCountObject.h" 16 #include "libGLESv2/angletypes.h" 17 #include "libGLESv2/constants.h" 18 #include "libGLESv2/renderer/TextureImpl.h" 19 #include "libGLESv2/Caps.h" 20 21 #include "angle_gl.h" 22 23 #include <vector> 24 25 namespace egl 26 { 27 class Surface; 28 } 29 30 namespace rx 31 { 32 class TextureStorageInterface; 33 class Image; 34 } 35 36 namespace gl 37 { 38 class Framebuffer; 39 class FramebufferAttachment; 40 struct ImageIndex; 41 42 bool IsMipmapFiltered(const gl::SamplerState &samplerState); 43 44 class Texture : public RefCountObject 45 { 46 public: 47 Texture(rx::TextureImpl *impl, GLuint id, GLenum target); 48 49 virtual ~Texture(); 50 51 GLenum getTarget() const; 52 getSamplerState()53 const SamplerState &getSamplerState() const { return mSamplerState; } getSamplerState()54 SamplerState &getSamplerState() { return mSamplerState; } 55 void getSamplerStateWithNativeOffset(SamplerState *sampler); 56 57 void setUsage(GLenum usage); 58 GLenum getUsage() const; 59 60 GLint getBaseLevelWidth() const; 61 GLint getBaseLevelHeight() const; 62 GLint getBaseLevelDepth() const; 63 GLenum getBaseLevelInternalFormat() const; 64 65 GLsizei getWidth(const ImageIndex &index) const; 66 GLsizei getHeight(const ImageIndex &index) const; 67 GLenum getInternalFormat(const ImageIndex &index) const; 68 GLenum getActualFormat(const ImageIndex &index) const; 69 70 virtual bool isSamplerComplete(const SamplerState &samplerState, const TextureCapsMap &textureCaps, const Extensions &extensions, int clientVersion) const = 0; 71 72 rx::TextureStorage *getNativeTexture(); 73 74 virtual void generateMipmaps(); 75 virtual void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source); 76 77 unsigned int getTextureSerial(); 78 79 bool isImmutable() const; 80 int immutableLevelCount(); 81 getImplementation()82 rx::TextureImpl *getImplementation() { return mTexture; } getImplementation()83 const rx::TextureImpl *getImplementation() const { return mTexture; } 84 85 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. 86 87 protected: 88 int mipLevels() const; 89 90 rx::TextureImpl *mTexture; 91 92 SamplerState mSamplerState; 93 GLenum mUsage; 94 95 bool mImmutable; 96 97 GLenum mTarget; 98 99 const rx::Image *getBaseLevelImage() const; 100 101 private: 102 DISALLOW_COPY_AND_ASSIGN(Texture); 103 }; 104 105 class Texture2D : public Texture 106 { 107 public: 108 Texture2D(rx::TextureImpl *impl, GLuint id); 109 110 virtual ~Texture2D(); 111 112 GLsizei getWidth(GLint level) const; 113 GLsizei getHeight(GLint level) const; 114 GLenum getInternalFormat(GLint level) const; 115 GLenum getActualFormat(GLint level) const; 116 bool isCompressed(GLint level) const; 117 bool isDepth(GLint level) const; 118 119 void setImage(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 120 void setCompressedImage(GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei imageSize, const void *pixels); 121 void subImage(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 122 void subImageCompressed(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels); 123 void copyImage(GLint level, GLenum format, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source); 124 void storage(GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); 125 126 virtual bool isSamplerComplete(const SamplerState &samplerState, const TextureCapsMap &textureCaps, const Extensions &extensions, int clientVersion) const; 127 virtual void bindTexImage(egl::Surface *surface); 128 virtual void releaseTexImage(); 129 130 virtual void generateMipmaps(); 131 132 private: 133 DISALLOW_COPY_AND_ASSIGN(Texture2D); 134 135 bool isMipmapComplete() const; 136 bool isLevelComplete(int level) const; 137 138 egl::Surface *mSurface; 139 }; 140 141 class TextureCubeMap : public Texture 142 { 143 public: 144 TextureCubeMap(rx::TextureImpl *impl, GLuint id); 145 146 virtual ~TextureCubeMap(); 147 148 GLsizei getWidth(GLenum target, GLint level) const; 149 GLsizei getHeight(GLenum target, GLint level) const; 150 GLenum getInternalFormat(GLenum target, GLint level) const; 151 GLenum getActualFormat(GLenum target, GLint level) const; 152 bool isCompressed(GLenum target, GLint level) const; 153 bool isDepth(GLenum target, GLint level) const; 154 155 void setImagePosX(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 156 void setImageNegX(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 157 void setImagePosY(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 158 void setImageNegY(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 159 void setImagePosZ(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 160 void setImageNegZ(GLint level, GLsizei width, GLsizei height, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 161 162 void setCompressedImage(GLenum target, GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei imageSize, const void *pixels); 163 164 void subImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 165 void subImageCompressed(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels); 166 void copyImage(GLenum target, GLint level, GLenum format, GLint x, GLint y, GLsizei width, GLsizei height, Framebuffer *source); 167 void storage(GLsizei levels, GLenum internalformat, GLsizei size); 168 169 virtual bool isSamplerComplete(const SamplerState &samplerState, const TextureCapsMap &textureCaps, const Extensions &extensions, int clientVersion) const; 170 171 bool isCubeComplete() const; 172 173 static int targetToLayerIndex(GLenum target); 174 static GLenum layerIndexToTarget(GLint layer); 175 176 private: 177 DISALLOW_COPY_AND_ASSIGN(TextureCubeMap); 178 179 bool isMipmapComplete() const; 180 bool isFaceLevelComplete(int faceIndex, int level) const; 181 }; 182 183 class Texture3D : public Texture 184 { 185 public: 186 Texture3D(rx::TextureImpl *impl, GLuint id); 187 188 virtual ~Texture3D(); 189 190 GLsizei getWidth(GLint level) const; 191 GLsizei getHeight(GLint level) const; 192 GLsizei getDepth(GLint level) const; 193 GLenum getInternalFormat(GLint level) const; 194 GLenum getActualFormat(GLint level) const; 195 bool isCompressed(GLint level) const; 196 bool isDepth(GLint level) const; 197 198 void setImage(GLint level, GLsizei width, GLsizei height, GLsizei depth, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 199 void setCompressedImage(GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei depth, GLsizei imageSize, const void *pixels); 200 void subImage(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 201 void subImageCompressed(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *pixels); 202 void storage(GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); 203 204 virtual bool isSamplerComplete(const SamplerState &samplerState, const TextureCapsMap &textureCaps, const Extensions &extensions, int clientVersion) const; 205 206 private: 207 DISALLOW_COPY_AND_ASSIGN(Texture3D); 208 209 bool isMipmapComplete() const; 210 bool isLevelComplete(int level) const; 211 }; 212 213 class Texture2DArray : public Texture 214 { 215 public: 216 Texture2DArray(rx::TextureImpl *impl, GLuint id); 217 218 virtual ~Texture2DArray(); 219 220 GLsizei getWidth(GLint level) const; 221 GLsizei getHeight(GLint level) const; 222 GLsizei getLayers(GLint level) const; 223 GLenum getInternalFormat(GLint level) const; 224 GLenum getActualFormat(GLint level) const; 225 bool isCompressed(GLint level) const; 226 bool isDepth(GLint level) const; 227 228 void setImage(GLint level, GLsizei width, GLsizei height, GLsizei depth, GLenum internalFormat, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 229 void setCompressedImage(GLint level, GLenum format, GLsizei width, GLsizei height, GLsizei depth, GLsizei imageSize, const void *pixels); 230 void subImage(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const PixelUnpackState &unpack, const void *pixels); 231 void subImageCompressed(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *pixels); 232 void storage(GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); 233 234 virtual bool isSamplerComplete(const SamplerState &samplerState, const TextureCapsMap &textureCaps, const Extensions &extensions, int clientVersion) const; 235 236 private: 237 DISALLOW_COPY_AND_ASSIGN(Texture2DArray); 238 239 bool isMipmapComplete() const; 240 bool isLevelComplete(int level) const; 241 }; 242 243 } 244 245 #endif // LIBGLESV2_TEXTURE_H_ 246