kc3-lang/angle/src/libANGLE/renderer/FramebufferImpl.h

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• Hash : ce8602ab
  Author :
  Date : 2017-10-03T18:23:08
  

  WebGL requires GL_FRAMEBUFFER_UNSUPPORTED for identical FBO attachments.
  
  If the same level of a texture is attached to multiple color
  attachments of a framebuffer object, for example, the WebGL
  conformance tests require generating a GL_FRAMEBUFFER_UNSUPPORTED
  error. The Direct3D backend already had this restriction; apply it to
  all backends when the WebGL compatibility extension is enabled.
  
  Fixes the following WebGL conformance tests with the pass-through
  command decoder in Chrome:
    conformance/extensions/webgl-draw-buffers-framebuffer-unsupported
    conformance2/rendering/framebuffer-unsupported
  
  BUG=angleproject:2168
  
  Change-Id: I340d06ca0ee969989c6c5725512b1b9542281477
  Reviewed-on: https://chromium-review.googlesource.com/699856
  Commit-Queue: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/FramebufferImpl.h

• //
  // Copyright 2014 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.
  //
  
  // FramebufferImpl.h: Defines the abstract rx::FramebufferImpl class.
  
  #ifndef LIBANGLE_RENDERER_FRAMEBUFFERIMPL_H_
  #define LIBANGLE_RENDERER_FRAMEBUFFERIMPL_H_
  
  #include "angle_gl.h"
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/Framebuffer.h"
  
  namespace gl
  {
  class State;
  class Framebuffer;
  class FramebufferAttachment;
  struct Rectangle;
  }
  
  namespace rx
  {
  class DisplayImpl;
  
  class FramebufferImpl : angle::NonCopyable
  {
    public:
      explicit FramebufferImpl(const gl::FramebufferState &state) : mState(state) {}
      virtual ~FramebufferImpl() {}
      virtual void destroy(const gl::Context *context) {}
      virtual void destroyDefault(const egl::Display *display) {}
  
      virtual gl::Error discard(const gl::Context *context,
                                size_t count,
                                const GLenum *attachments) = 0;
      virtual gl::Error invalidate(const gl::Context *context,
                                   size_t count,
                                   const GLenum *attachments) = 0;
      virtual gl::Error invalidateSub(const gl::Context *context,
                                      size_t count,
                                      const GLenum *attachments,
                                      const gl::Rectangle &area) = 0;
  
      virtual gl::Error clear(const gl::Context *context, GLbitfield mask) = 0;
      virtual gl::Error clearBufferfv(const gl::Context *context,
                                      GLenum buffer,
                                      GLint drawbuffer,
                                      const GLfloat *values) = 0;
      virtual gl::Error clearBufferuiv(const gl::Context *context,
                                       GLenum buffer,
                                       GLint drawbuffer,
                                       const GLuint *values) = 0;
      virtual gl::Error clearBufferiv(const gl::Context *context,
                                      GLenum buffer,
                                      GLint drawbuffer,
                                      const GLint *values) = 0;
      virtual gl::Error clearBufferfi(const gl::Context *context,
                                      GLenum buffer,
                                      GLint drawbuffer,
                                      GLfloat depth,
                                      GLint stencil) = 0;
  
      virtual GLenum getImplementationColorReadFormat(const gl::Context *context) const = 0;
      virtual GLenum getImplementationColorReadType(const gl::Context *context) const   = 0;
      virtual gl::Error readPixels(const gl::Context *context,
                                   const gl::Rectangle &area,
                                   GLenum format,
                                   GLenum type,
                                   void *pixels) = 0;
  
      virtual gl::Error blit(const gl::Context *context,
                             const gl::Rectangle &sourceArea,
                             const gl::Rectangle &destArea,
                             GLbitfield mask,
                             GLenum filter) = 0;
  
      virtual bool checkStatus(const gl::Context *context) const = 0;
  
      virtual void syncState(const gl::Context *context,
                             const gl::Framebuffer::DirtyBits &dirtyBits) = 0;
  
      virtual gl::Error getSamplePosition(size_t index, GLfloat *xy) const = 0;
  
      const gl::FramebufferState &getState() const { return mState; }
  
    protected:
      const gl::FramebufferState &mState;
  };
  }
  
  #endif  // LIBANGLE_RENDERER_FRAMEBUFFERIMPL_H_
  

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