kc3-lang/angle/src/libGLESv2/renderer/d3d/VertexDataManager.h

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  Commit

• Author : Geoff Lang
  Date : 2014-09-08 16:17:08
  Hash : f7100b98
  Message : Updated the vertex buffer classes to use Error objects. BUG=angle:520 Change-Id: Id003e66b2acbf37dbbe66aaca2fa336c3c884be2 Reviewed-on: https://chromium-review.googlesource.com/217102 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libGLESv2/renderer/d3d/VertexDataManager.h

• //
  // 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.
  //
  
  // VertexDataManager.h: Defines the VertexDataManager, a class that
  // runs the Buffer translation process.
  
  #ifndef LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_
  #define LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_
  
  #include "libGLESv2/Constants.h"
  #include "libGLESv2/VertexAttribute.h"
  #include "common/angleutils.h"
  
  namespace gl
  {
  struct VertexAttribute;
  class ProgramBinary;
  struct VertexAttribCurrentValueData;
  }
  
  namespace rx
  {
  class BufferD3D;
  class StreamingVertexBufferInterface;
  class VertexBuffer;
  class Renderer;
  
  struct TranslatedAttribute
  {
      TranslatedAttribute() : active(false), attribute(NULL), currentValueType(GL_NONE),
                              offset(0), stride(0), vertexBuffer(NULL), storage(NULL),
                              serial(0), divisor(0) {};
      bool active;
  
      const gl::VertexAttribute *attribute;
      GLenum currentValueType;
      unsigned int offset;
      unsigned int stride;   // 0 means not to advance the read pointer at all
  
      VertexBuffer *vertexBuffer;
      BufferD3D *storage;
      unsigned int serial;
      unsigned int divisor;
  };
  
  class VertexDataManager
  {
    public:
      VertexDataManager(rx::Renderer *renderer);
      virtual ~VertexDataManager();
  
      gl::Error prepareVertexData(const gl::VertexAttribute attribs[], const gl::VertexAttribCurrentValueData currentValues[],
                                  gl::ProgramBinary *programBinary, GLint start, GLsizei count, TranslatedAttribute *outAttribs, GLsizei instances);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(VertexDataManager);
  
      gl::Error reserveSpaceForAttrib(const gl::VertexAttribute &attrib,
                                      const gl::VertexAttribCurrentValueData &currentValue,
                                      GLsizei count,
                                      GLsizei instances) const;
  
      void invalidateMatchingStaticData(const gl::VertexAttribute &attrib,
                                        const gl::VertexAttribCurrentValueData &currentValue) const;
  
      gl::Error storeAttribute(const gl::VertexAttribute &attrib,
                               const gl::VertexAttribCurrentValueData &currentValue,
                               TranslatedAttribute *translated,
                               GLint start,
                               GLsizei count,
                               GLsizei instances);
  
      gl::Error storeCurrentValue(const gl::VertexAttribute &attrib,
                                  const gl::VertexAttribCurrentValueData &currentValue,
                                  TranslatedAttribute *translated,
                                  gl::VertexAttribCurrentValueData *cachedValue,
                                  size_t *cachedOffset,
                                  StreamingVertexBufferInterface *buffer);
  
      rx::Renderer *const mRenderer;
  
      StreamingVertexBufferInterface *mStreamingBuffer;
  
      gl::VertexAttribCurrentValueData mCurrentValue[gl::MAX_VERTEX_ATTRIBS];
  
      StreamingVertexBufferInterface *mCurrentValueBuffer[gl::MAX_VERTEX_ATTRIBS];
      std::size_t mCurrentValueOffsets[gl::MAX_VERTEX_ATTRIBS];
  };
  
  }
  
  #endif   // LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_