kc3-lang/angle/src/libGLESv2/utilities.h

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• Author : jbauman@chromium.org
  Date : 2012-07-12 23:28:41
  Hash : 68715287
  Message : Scale up non-multiple-of-4 dxt textures D3D doesn't support DXT textures that aren't a multiple of 4 in size, so multiply the sizes by 2 or 4 so they work. Then ensure sampler parameters are set up correctly so they don't sample the unuploaded miplevels. BUG=https://code.google.com/p/angleproject/issues/detail?id=237 TEST= Review URL: https://codereview.appspot.com/6287045 git-svn-id: https://angleproject.googlecode.com/svn/trunk@1222 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/utilities.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.
  //
  
  // utilities.h: Conversion functions and other utility routines.
  
  #ifndef LIBGLESV2_UTILITIES_H
  #define LIBGLESV2_UTILITIES_H
  
  #define GL_APICALL
  #include <GLES2/gl2.h>
  #include <GLES2/gl2ext.h>
  #include <d3d9.h>
  
  #include <string>
  
  const D3DFORMAT D3DFMT_INTZ = ((D3DFORMAT)(MAKEFOURCC('I','N','T','Z')));
  const D3DFORMAT D3DFMT_NULL = ((D3DFORMAT)(MAKEFOURCC('N','U','L','L')));
  
  namespace gl
  {
  
  struct Color;
  
  int UniformExternalComponentCount(GLenum type);
  int UniformInternalComponentCount(GLenum type);
  GLenum UniformComponentType(GLenum type);
  size_t UniformInternalSize(GLenum type);
  size_t UniformExternalSize(GLenum type);
  int VariableRowCount(GLenum type);
  int VariableColumnCount(GLenum type);
  
  int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
  
  int ComputePixelSize(GLenum format, GLenum type);
  GLsizei ComputePitch(GLsizei width, GLenum format, GLenum type, GLint alignment);
  GLsizei ComputeCompressedPitch(GLsizei width, GLenum format);
  GLsizei ComputeCompressedSize(GLsizei width, GLsizei height, GLenum format);
  bool IsCompressed(GLenum format);
  bool IsDepthTexture(GLenum format);
  bool IsCubemapTextureTarget(GLenum target);
  bool IsInternalTextureTarget(GLenum target);
  GLenum ExtractFormat(GLenum internalformat);
  GLenum ExtractType(GLenum internalformat);
  
  bool IsColorRenderable(GLenum internalformat);
  bool IsDepthRenderable(GLenum internalformat);
  bool IsStencilRenderable(GLenum internalformat);
  
  }
  
  namespace es2dx
  {
  
  D3DCMPFUNC ConvertComparison(GLenum comparison);
  D3DCOLOR ConvertColor(gl::Color color);
  D3DBLEND ConvertBlendFunc(GLenum blend);
  D3DBLENDOP ConvertBlendOp(GLenum blendOp);
  D3DSTENCILOP ConvertStencilOp(GLenum stencilOp);
  D3DTEXTUREADDRESS ConvertTextureWrap(GLenum wrap);
  D3DCULL ConvertCullMode(GLenum cullFace, GLenum frontFace);
  D3DCUBEMAP_FACES ConvertCubeFace(GLenum cubeFace);
  DWORD ConvertColorMask(bool red, bool green, bool blue, bool alpha);
  D3DTEXTUREFILTERTYPE ConvertMagFilter(GLenum magFilter, float maxAnisotropy);
  void ConvertMinFilter(GLenum minFilter, D3DTEXTUREFILTERTYPE *d3dMinFilter, D3DTEXTUREFILTERTYPE *d3dMipFilter, float maxAnisotropy);
  bool ConvertPrimitiveType(GLenum primitiveType, GLsizei elementCount,
                            D3DPRIMITIVETYPE *d3dPrimitiveType, int *d3dPrimitiveCount);
  D3DFORMAT ConvertRenderbufferFormat(GLenum format);
  D3DMULTISAMPLE_TYPE GetMultisampleTypeFromSamples(GLsizei samples);
  
  }
  
  namespace dx2es
  {
  GLuint GetAlphaSize(D3DFORMAT colorFormat);
  GLuint GetRedSize(D3DFORMAT colorFormat);
  GLuint GetGreenSize(D3DFORMAT colorFormat);
  GLuint GetBlueSize(D3DFORMAT colorFormat);
  GLuint GetDepthSize(D3DFORMAT depthFormat);
  GLuint GetStencilSize(D3DFORMAT stencilFormat);
  bool IsFloat32Format(D3DFORMAT surfaceFormat);
  bool IsFloat16Format(D3DFORMAT surfaceFormat);
  bool IsDepthTextureFormat(D3DFORMAT surfaceFormat);
  bool IsStencilTextureFormat(D3DFORMAT surfaceFormat);
  bool IsCompressedD3DFormat(D3DFORMAT format);
  
  GLsizei GetSamplesFromMultisampleType(D3DMULTISAMPLE_TYPE type);
  
  GLenum ConvertBackBufferFormat(D3DFORMAT format);
  GLenum ConvertDepthStencilFormat(D3DFORMAT format);
  
  }
  
  std::string getTempPath();
  void writeFile(const char* path, const void* data, size_t size);
  
  inline bool isDeviceLostError(HRESULT errorCode)
  {
      switch (errorCode)
      {
        case D3DERR_DRIVERINTERNALERROR:
        case D3DERR_DEVICELOST:
        case D3DERR_DEVICEHUNG:
        case D3DERR_DEVICEREMOVED:
          return true;
        default:
          return false;
      }
  };
  
  #endif  // LIBGLESV2_UTILITIES_H