Jamie Madill | afc21c0 | 2014-06-04 15:29:47 -0400 | [diff] [blame] | 1 | // |
| 2 | // Copyright (c) 2014 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 | // FramebufferAttachment.h: Defines the wrapper class gl::FramebufferAttachment, as well as the |
| 8 | // objects and related functionality. [OpenGL ES 2.0.24] section 4.4.3 page 108. |
| 9 | |
| 10 | #ifndef LIBGLESV2_FRAMEBUFFERATTACHMENT_H_ |
| 11 | #define LIBGLESV2_FRAMEBUFFERATTACHMENT_H_ |
| 12 | |
| 13 | #include <GLES3/gl3.h> |
| 14 | #include <GLES2/gl2.h> |
| 15 | |
| 16 | #include "common/angleutils.h" |
| 17 | #include "common/RefCountObject.h" |
| 18 | |
| 19 | namespace rx |
| 20 | { |
| 21 | class Renderer; |
| 22 | class RenderTarget; |
| 23 | class TextureStorage; |
| 24 | } |
| 25 | |
| 26 | namespace gl |
| 27 | { |
| 28 | class Texture2D; |
| 29 | class TextureCubeMap; |
| 30 | class Texture3D; |
| 31 | class Texture2DArray; |
| 32 | class FramebufferAttachment; |
| 33 | class FramebufferAttachmentInterface; |
| 34 | class RenderbufferStorage; |
| 35 | |
| 36 | // FramebufferAttachment implements the GL renderbuffer object. |
| 37 | // It's only a proxy for a FramebufferAttachmentInterface instance; the internal object |
| 38 | // can change whenever glRenderbufferStorage is called. |
| 39 | class FramebufferAttachment : public RefCountObject |
| 40 | { |
| 41 | public: |
| 42 | FramebufferAttachment(rx::Renderer *renderer, GLuint id, FramebufferAttachmentInterface *storage); |
| 43 | |
| 44 | virtual ~FramebufferAttachment(); |
| 45 | |
| 46 | // These functions from RefCountObject are overloaded here because |
| 47 | // Textures need to maintain their own count of references to them via |
| 48 | // Renderbuffers/RenderbufferTextures. These functions invoke those |
| 49 | // reference counting functions on the FramebufferAttachmentInterface. |
| 50 | void addRef() const; |
| 51 | void release() const; |
| 52 | |
| 53 | rx::RenderTarget *getRenderTarget(); |
| 54 | rx::RenderTarget *getDepthStencil(); |
| 55 | rx::TextureStorage *getTextureStorage(); |
| 56 | |
| 57 | GLsizei getWidth() const; |
| 58 | GLsizei getHeight() const; |
| 59 | GLenum getInternalFormat() const; |
| 60 | GLenum getActualFormat() const; |
| 61 | GLuint getRedSize() const; |
| 62 | GLuint getGreenSize() const; |
| 63 | GLuint getBlueSize() const; |
| 64 | GLuint getAlphaSize() const; |
| 65 | GLuint getDepthSize() const; |
| 66 | GLuint getStencilSize() const; |
| 67 | GLenum getComponentType() const; |
| 68 | GLenum getColorEncoding() const; |
| 69 | GLsizei getSamples() const; |
| 70 | |
| 71 | unsigned int getSerial() const; |
| 72 | |
| 73 | bool isTexture() const; |
| 74 | unsigned int getTextureSerial() const; |
| 75 | |
| 76 | void setStorage(RenderbufferStorage *newStorage); |
| 77 | |
| 78 | private: |
| 79 | DISALLOW_COPY_AND_ASSIGN(FramebufferAttachment); |
| 80 | |
| 81 | rx::Renderer const *mRenderer; |
| 82 | FramebufferAttachmentInterface *mInstance; |
| 83 | }; |
| 84 | |
| 85 | class FramebufferAttachmentInterface |
| 86 | { |
| 87 | public: |
| 88 | FramebufferAttachmentInterface(); |
| 89 | |
| 90 | virtual ~FramebufferAttachmentInterface() {}; |
| 91 | |
| 92 | virtual void addProxyRef(const FramebufferAttachment *proxy); |
| 93 | virtual void releaseProxy(const FramebufferAttachment *proxy); |
| 94 | |
| 95 | virtual rx::RenderTarget *getRenderTarget() = 0; |
| 96 | virtual rx::RenderTarget *getDepthStencil() = 0; |
| 97 | virtual rx::TextureStorage *getTextureStorage() = 0; |
| 98 | |
| 99 | virtual GLsizei getWidth() const = 0; |
| 100 | virtual GLsizei getHeight() const = 0; |
| 101 | virtual GLenum getInternalFormat() const = 0; |
| 102 | virtual GLenum getActualFormat() const = 0; |
| 103 | virtual GLsizei getSamples() const = 0; |
| 104 | |
| 105 | virtual unsigned int getSerial() const = 0; |
| 106 | |
| 107 | virtual bool isTexture() const = 0; |
| 108 | virtual unsigned int getTextureSerial() const = 0; |
| 109 | |
| 110 | private: |
| 111 | DISALLOW_COPY_AND_ASSIGN(FramebufferAttachmentInterface); |
| 112 | }; |
| 113 | |
| 114 | class Texture2DAttachment : public FramebufferAttachmentInterface |
| 115 | { |
| 116 | public: |
| 117 | Texture2DAttachment(Texture2D *texture, GLint level); |
| 118 | |
| 119 | virtual ~Texture2DAttachment(); |
| 120 | |
| 121 | void addProxyRef(const FramebufferAttachment *proxy); |
| 122 | void releaseProxy(const FramebufferAttachment *proxy); |
| 123 | |
| 124 | rx::RenderTarget *getRenderTarget(); |
| 125 | rx::RenderTarget *getDepthStencil(); |
| 126 | rx::TextureStorage *getTextureStorage(); |
| 127 | |
| 128 | virtual GLsizei getWidth() const; |
| 129 | virtual GLsizei getHeight() const; |
| 130 | virtual GLenum getInternalFormat() const; |
| 131 | virtual GLenum getActualFormat() const; |
| 132 | virtual GLsizei getSamples() const; |
| 133 | |
| 134 | virtual unsigned int getSerial() const; |
| 135 | |
| 136 | virtual bool isTexture() const; |
| 137 | virtual unsigned int getTextureSerial() const; |
| 138 | |
| 139 | private: |
| 140 | DISALLOW_COPY_AND_ASSIGN(Texture2DAttachment); |
| 141 | |
| 142 | BindingPointer <Texture2D> mTexture2D; |
| 143 | const GLint mLevel; |
| 144 | }; |
| 145 | |
| 146 | class TextureCubeMapAttachment : public FramebufferAttachmentInterface |
| 147 | { |
| 148 | public: |
| 149 | TextureCubeMapAttachment(TextureCubeMap *texture, GLenum faceTarget, GLint level); |
| 150 | |
| 151 | virtual ~TextureCubeMapAttachment(); |
| 152 | |
| 153 | void addProxyRef(const FramebufferAttachment *proxy); |
| 154 | void releaseProxy(const FramebufferAttachment *proxy); |
| 155 | |
| 156 | rx::RenderTarget *getRenderTarget(); |
| 157 | rx::RenderTarget *getDepthStencil(); |
| 158 | rx::TextureStorage *getTextureStorage(); |
| 159 | |
| 160 | virtual GLsizei getWidth() const; |
| 161 | virtual GLsizei getHeight() const; |
| 162 | virtual GLenum getInternalFormat() const; |
| 163 | virtual GLenum getActualFormat() const; |
| 164 | virtual GLsizei getSamples() const; |
| 165 | |
| 166 | virtual unsigned int getSerial() const; |
| 167 | |
| 168 | virtual bool isTexture() const; |
| 169 | virtual unsigned int getTextureSerial() const; |
| 170 | |
| 171 | private: |
| 172 | DISALLOW_COPY_AND_ASSIGN(TextureCubeMapAttachment); |
| 173 | |
| 174 | BindingPointer <TextureCubeMap> mTextureCubeMap; |
| 175 | const GLint mLevel; |
| 176 | const GLenum mFaceTarget; |
| 177 | }; |
| 178 | |
| 179 | class Texture3DAttachment : public FramebufferAttachmentInterface |
| 180 | { |
| 181 | public: |
| 182 | Texture3DAttachment(Texture3D *texture, GLint level, GLint layer); |
| 183 | |
| 184 | virtual ~Texture3DAttachment(); |
| 185 | |
| 186 | void addProxyRef(const FramebufferAttachment *proxy); |
| 187 | void releaseProxy(const FramebufferAttachment *proxy); |
| 188 | |
| 189 | rx::RenderTarget *getRenderTarget(); |
| 190 | rx::RenderTarget *getDepthStencil(); |
| 191 | rx::TextureStorage *getTextureStorage(); |
| 192 | |
| 193 | virtual GLsizei getWidth() const; |
| 194 | virtual GLsizei getHeight() const; |
| 195 | virtual GLenum getInternalFormat() const; |
| 196 | virtual GLenum getActualFormat() const; |
| 197 | virtual GLsizei getSamples() const; |
| 198 | |
| 199 | virtual unsigned int getSerial() const; |
| 200 | |
| 201 | virtual bool isTexture() const; |
| 202 | virtual unsigned int getTextureSerial() const; |
| 203 | |
| 204 | private: |
| 205 | DISALLOW_COPY_AND_ASSIGN(Texture3DAttachment); |
| 206 | |
| 207 | BindingPointer<Texture3D> mTexture3D; |
| 208 | const GLint mLevel; |
| 209 | const GLint mLayer; |
| 210 | }; |
| 211 | |
| 212 | class Texture2DArrayAttachment : public FramebufferAttachmentInterface |
| 213 | { |
| 214 | public: |
| 215 | Texture2DArrayAttachment(Texture2DArray *texture, GLint level, GLint layer); |
| 216 | |
| 217 | virtual ~Texture2DArrayAttachment(); |
| 218 | |
| 219 | void addProxyRef(const FramebufferAttachment *proxy); |
| 220 | void releaseProxy(const FramebufferAttachment *proxy); |
| 221 | |
| 222 | rx::RenderTarget *getRenderTarget(); |
| 223 | rx::RenderTarget *getDepthStencil(); |
| 224 | rx::TextureStorage *getTextureStorage(); |
| 225 | |
| 226 | virtual GLsizei getWidth() const; |
| 227 | virtual GLsizei getHeight() const; |
| 228 | virtual GLenum getInternalFormat() const; |
| 229 | virtual GLenum getActualFormat() const; |
| 230 | virtual GLsizei getSamples() const; |
| 231 | |
| 232 | virtual unsigned int getSerial() const; |
| 233 | |
| 234 | virtual bool isTexture() const; |
| 235 | virtual unsigned int getTextureSerial() const; |
| 236 | |
| 237 | private: |
| 238 | DISALLOW_COPY_AND_ASSIGN(Texture2DArrayAttachment); |
| 239 | |
| 240 | BindingPointer<Texture2DArray> mTexture2DArray; |
| 241 | const GLint mLevel; |
| 242 | const GLint mLayer; |
| 243 | }; |
| 244 | |
| 245 | } |
| 246 | |
| 247 | #endif // LIBGLESV2_FRAMEBUFFERATTACHMENT_H_ |