| // |
| // Copyright 2002 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. |
| // |
| |
| // Renderbuffer.h: Defines the renderer-agnostic container class gl::Renderbuffer. |
| // Implements GL renderbuffer objects and related functionality. |
| // [OpenGL ES 2.0.24] section 4.4.3 page 108. |
| |
| #ifndef LIBANGLE_RENDERBUFFER_H_ |
| #define LIBANGLE_RENDERBUFFER_H_ |
| |
| #include "angle_gl.h" |
| #include "common/angleutils.h" |
| #include "libANGLE/Debug.h" |
| #include "libANGLE/Error.h" |
| #include "libANGLE/FramebufferAttachment.h" |
| #include "libANGLE/Image.h" |
| #include "libANGLE/formatutils.h" |
| #include "libANGLE/renderer/RenderbufferImpl.h" |
| |
| namespace rx |
| { |
| class GLImplFactory; |
| } // namespace rx |
| |
| namespace gl |
| { |
| // A GL renderbuffer object is usually used as a depth or stencil buffer attachment |
| // for a framebuffer object. The renderbuffer itself is a distinct GL object, see |
| // FramebufferAttachment and Framebuffer for how they are applied to an FBO via an |
| // attachment point. |
| |
| class RenderbufferState final : angle::NonCopyable |
| { |
| public: |
| RenderbufferState(); |
| ~RenderbufferState(); |
| |
| GLsizei getWidth() const; |
| GLsizei getHeight() const; |
| const Format &getFormat() const; |
| GLsizei getSamples() const; |
| |
| private: |
| friend class Renderbuffer; |
| |
| void update(GLsizei width, |
| GLsizei height, |
| const Format &format, |
| GLsizei samples, |
| InitState initState); |
| |
| GLsizei mWidth; |
| GLsizei mHeight; |
| Format mFormat; |
| GLsizei mSamples; |
| |
| // For robust resource init. |
| InitState mInitState; |
| }; |
| |
| class Renderbuffer final : public RefCountObject<RenderbufferID>, |
| public egl::ImageSibling, |
| public LabeledObject |
| { |
| public: |
| Renderbuffer(rx::GLImplFactory *implFactory, RenderbufferID id); |
| ~Renderbuffer() override; |
| |
| void onDestroy(const Context *context) override; |
| |
| void setLabel(const Context *context, const std::string &label) override; |
| const std::string &getLabel() const override; |
| |
| angle::Result setStorage(const Context *context, |
| GLenum internalformat, |
| size_t width, |
| size_t height); |
| angle::Result setStorageMultisample(const Context *context, |
| size_t samples, |
| GLenum internalformat, |
| size_t width, |
| size_t height); |
| angle::Result setStorageEGLImageTarget(const Context *context, egl::Image *imageTarget); |
| |
| rx::RenderbufferImpl *getImplementation() const; |
| |
| GLsizei getWidth() const; |
| GLsizei getHeight() const; |
| const Format &getFormat() const; |
| GLsizei getSamples() const; |
| GLuint getRedSize() const; |
| GLuint getGreenSize() const; |
| GLuint getBlueSize() const; |
| GLuint getAlphaSize() const; |
| GLuint getDepthSize() const; |
| GLuint getStencilSize() const; |
| |
| GLint getMemorySize() const; |
| |
| // FramebufferAttachmentObject Impl |
| Extents getAttachmentSize(const ImageIndex &imageIndex) const override; |
| Format getAttachmentFormat(GLenum binding, const ImageIndex &imageIndex) const override; |
| GLsizei getAttachmentSamples(const ImageIndex &imageIndex) const override; |
| bool isRenderable(const Context *context, |
| GLenum binding, |
| const ImageIndex &imageIndex) const override; |
| |
| void onAttach(const Context *context) override; |
| void onDetach(const Context *context) override; |
| GLuint getId() const override; |
| |
| InitState initState(const ImageIndex &imageIndex) const override; |
| void setInitState(const ImageIndex &imageIndex, InitState initState) override; |
| |
| GLenum getImplementationColorReadFormat(const Context *context) const; |
| GLenum getImplementationColorReadType(const Context *context) const; |
| |
| // We pass the pack buffer and state explicitly so they can be overridden during capture. |
| angle::Result getRenderbufferImage(const Context *context, |
| const PixelPackState &packState, |
| Buffer *packBuffer, |
| GLenum format, |
| GLenum type, |
| void *pixels) const; |
| |
| private: |
| // ObserverInterface implementation. |
| void onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message) override; |
| |
| rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override; |
| |
| RenderbufferState mState; |
| std::unique_ptr<rx::RenderbufferImpl> mImplementation; |
| |
| std::string mLabel; |
| angle::ObserverBinding mImplObserverBinding; |
| }; |
| |
| } // namespace gl |
| |
| #endif // LIBANGLE_RENDERBUFFER_H_ |