kc3-lang/angle/src/common/utilities.h

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• Hash : 865d1451
  Author :
  Date : 2014-07-02T15:31:20
  

  Consolidate varying packing sort order methods.
  
  We were using the same list in the shader varying sorting
  as well as in the varying packing validation in the
  translator.
  
  BUG=angle:466
  
  Change-Id: Ic11758288e7a522d7c18a293de9e137e487e3978
  Reviewed-on: https://chromium-review.googlesource.com/205595
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  

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• src/common/utilities.h

• //
  // Copyright (c) 2002-2013 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.
  //
  
  // utilities.h: Conversion functions and other utility routines.
  
  #ifndef LIBGLESV2_UTILITIES_H
  #define LIBGLESV2_UTILITIES_H
  
  #include "angle_gl.h"
  #include <string>
  #include <math.h>
  
  namespace gl
  {
  
  int VariableComponentCount(GLenum type);
  GLenum VariableComponentType(GLenum type);
  size_t VariableComponentSize(GLenum type);
  size_t VariableInternalSize(GLenum type);
  size_t VariableExternalSize(GLenum type);
  GLenum VariableBoolVectorType(GLenum type);
  int VariableRowCount(GLenum type);
  int VariableColumnCount(GLenum type);
  bool IsSampler(GLenum type);
  bool IsMatrixType(GLenum type);
  GLenum TransposeMatrixType(GLenum type);
  int VariableRegisterCount(GLenum type);
  int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix);
  int MatrixComponentCount(GLenum type, bool isRowMajorMatrix);
  int VariableSortOrder(GLenum type);
  
  int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
  
  bool IsCubemapTextureTarget(GLenum target);
  
  bool IsTriangleMode(GLenum drawMode);
  
  // [OpenGL ES 3.0.2] Section 2.3.1 page 14
  // Data Conversion For State-Setting Commands
  // Floating-point values are rounded to the nearest integer, instead of truncated, as done by static_cast.
  template <typename outT> outT iround(GLfloat value) { return static_cast<outT>(value > 0.0f ? floor(value + 0.5f) : ceil(value - 0.5f)); }
  template <typename outT> outT uiround(GLfloat value) { return static_cast<outT>(value + 0.5f); }
  
  }
  
  std::string getTempPath();
  void writeFile(const char* path, const void* data, size_t size);
  
  #endif  // LIBGLESV2_UTILITIES_H
  

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