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      1 //
      2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 
      7 // utilities.h: Conversion functions and other utility routines.
      8 
      9 #ifndef LIBGLESV2_UTILITIES_H
     10 #define LIBGLESV2_UTILITIES_H
     11 
     12 #define GL_APICALL
     13 #include <GLES2/gl2.h>
     14 #include <GLES2/gl2ext.h>
     15 #include <d3d9.h>
     16 
     17 namespace gl
     18 {
     19 
     20 struct Color;
     21 
     22 int UniformComponentCount(GLenum type);
     23 GLenum UniformComponentType(GLenum type);
     24 size_t UniformTypeSize(GLenum type);
     25 int VariableRowCount(GLenum type);
     26 int VariableColumnCount(GLenum type);
     27 
     28 int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
     29 
     30 int ComputePixelSize(GLenum format, GLenum type);
     31 GLsizei ComputePitch(GLsizei width, GLenum format, GLenum type, GLint alignment);
     32 GLsizei ComputeCompressedPitch(GLsizei width, GLenum format);
     33 GLsizei ComputeCompressedSize(GLsizei width, GLsizei height, GLenum format);
     34 bool IsCompressed(GLenum format);
     35 bool IsCubemapTextureTarget(GLenum target);
     36 bool IsTextureTarget(GLenum target);
     37 bool CheckTextureFormatType(GLenum format, GLenum type);
     38 
     39 bool IsColorRenderable(GLenum internalformat);
     40 bool IsDepthRenderable(GLenum internalformat);
     41 bool IsStencilRenderable(GLenum internalformat);
     42 
     43 }
     44 
     45 namespace es2dx
     46 {
     47 
     48 D3DCMPFUNC ConvertComparison(GLenum comparison);
     49 D3DCOLOR ConvertColor(gl::Color color);
     50 D3DBLEND ConvertBlendFunc(GLenum blend);
     51 D3DBLENDOP ConvertBlendOp(GLenum blendOp);
     52 D3DSTENCILOP ConvertStencilOp(GLenum stencilOp);
     53 D3DTEXTUREADDRESS ConvertTextureWrap(GLenum wrap);
     54 D3DCULL ConvertCullMode(GLenum cullFace, GLenum frontFace);
     55 DWORD ConvertColorMask(bool red, bool green, bool blue, bool alpha);
     56 D3DTEXTUREFILTERTYPE ConvertMagFilter(GLenum magFilter);
     57 void ConvertMinFilter(GLenum minFilter, D3DTEXTUREFILTERTYPE *d3dMinFilter, D3DTEXTUREFILTERTYPE *d3dMipFilter);
     58 unsigned int GetAlphaSize(D3DFORMAT colorFormat);
     59 unsigned int GetRedSize(D3DFORMAT colorFormat);
     60 unsigned int GetGreenSize(D3DFORMAT colorFormat);
     61 unsigned int GetBlueSize(D3DFORMAT colorFormat);
     62 unsigned int GetDepthSize(D3DFORMAT depthFormat);
     63 unsigned int GetStencilSize(D3DFORMAT stencilFormat);
     64 bool ConvertPrimitiveType(GLenum primitiveType, GLsizei elementCount,
     65                           D3DPRIMITIVETYPE *d3dPrimitiveType, int *d3dPrimitiveCount);
     66 D3DFORMAT ConvertRenderbufferFormat(GLenum format);
     67 D3DMULTISAMPLE_TYPE GetMultisampleTypeFromSamples(GLsizei samples);
     68 GLsizei GetSamplesFromMultisampleType(D3DMULTISAMPLE_TYPE type);
     69 
     70 }
     71 
     72 namespace dx2es
     73 {
     74 
     75 GLenum ConvertBackBufferFormat(D3DFORMAT format);
     76 GLenum ConvertDepthStencilFormat(D3DFORMAT format);
     77 
     78 }
     79 
     80 #endif  // LIBGLESV2_UTILITIES_H
     81