kc3-lang/angle/src/libGLESv2/renderer/renderer9_utils.cpp

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• Hash : 2a64ee44
  Author :
  Date : 2013-05-31T11:22:40
  

  Templated the Color structure so it can be used for the new integer and unsigned integer color types.
  
  TRAC #23256
  
  Signed-off-by: Jamie Madill
  Signed-off-by: Shannon Woods
  Author: Geoff Lang
  

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• src/libGLESv2/renderer/renderer9_utils.cpp

• #include "precompiled.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.
  //
  
  // renderer9_utils.cpp: Conversion functions and other utility routines
  // specific to the D3D9 renderer.
  
  #include "libGLESv2/renderer/renderer9_utils.h"
  #include "common/mathutil.h"
  #include "libGLESv2/Context.h"
  
  #include "common/debug.h"
  
  namespace rx
  {
  
  namespace gl_d3d9
  {
  
  D3DCMPFUNC ConvertComparison(GLenum comparison)
  {
      D3DCMPFUNC d3dComp = D3DCMP_ALWAYS;
      switch (comparison)
      {
        case GL_NEVER:    d3dComp = D3DCMP_NEVER;        break;
        case GL_ALWAYS:   d3dComp = D3DCMP_ALWAYS;       break;
        case GL_LESS:     d3dComp = D3DCMP_LESS;         break;
        case GL_LEQUAL:   d3dComp = D3DCMP_LESSEQUAL;    break;
        case GL_EQUAL:    d3dComp = D3DCMP_EQUAL;        break;
        case GL_GREATER:  d3dComp = D3DCMP_GREATER;      break;
        case GL_GEQUAL:   d3dComp = D3DCMP_GREATEREQUAL; break;
        case GL_NOTEQUAL: d3dComp = D3DCMP_NOTEQUAL;     break;
        default: UNREACHABLE();
      }
  
      return d3dComp;
  }
  
  D3DCOLOR ConvertColor(gl::ColorF color)
  {
      return D3DCOLOR_RGBA(gl::unorm<8>(color.red),
                           gl::unorm<8>(color.green),
                           gl::unorm<8>(color.blue),
                           gl::unorm<8>(color.alpha));
  }
  
  D3DBLEND ConvertBlendFunc(GLenum blend)
  {
      D3DBLEND d3dBlend = D3DBLEND_ZERO;
  
      switch (blend)
      {
        case GL_ZERO:                     d3dBlend = D3DBLEND_ZERO;           break;
        case GL_ONE:                      d3dBlend = D3DBLEND_ONE;            break;
        case GL_SRC_COLOR:                d3dBlend = D3DBLEND_SRCCOLOR;       break;
        case GL_ONE_MINUS_SRC_COLOR:      d3dBlend = D3DBLEND_INVSRCCOLOR;    break;
        case GL_DST_COLOR:                d3dBlend = D3DBLEND_DESTCOLOR;      break;
        case GL_ONE_MINUS_DST_COLOR:      d3dBlend = D3DBLEND_INVDESTCOLOR;   break;
        case GL_SRC_ALPHA:                d3dBlend = D3DBLEND_SRCALPHA;       break;
        case GL_ONE_MINUS_SRC_ALPHA:      d3dBlend = D3DBLEND_INVSRCALPHA;    break;
        case GL_DST_ALPHA:                d3dBlend = D3DBLEND_DESTALPHA;      break;
        case GL_ONE_MINUS_DST_ALPHA:      d3dBlend = D3DBLEND_INVDESTALPHA;   break;
        case GL_CONSTANT_COLOR:           d3dBlend = D3DBLEND_BLENDFACTOR;    break;
        case GL_ONE_MINUS_CONSTANT_COLOR: d3dBlend = D3DBLEND_INVBLENDFACTOR; break;
        case GL_CONSTANT_ALPHA:           d3dBlend = D3DBLEND_BLENDFACTOR;    break;
        case GL_ONE_MINUS_CONSTANT_ALPHA: d3dBlend = D3DBLEND_INVBLENDFACTOR; break;
        case GL_SRC_ALPHA_SATURATE:       d3dBlend = D3DBLEND_SRCALPHASAT;    break;
        default: UNREACHABLE();
      }
  
      return d3dBlend;
  }
  
  D3DBLENDOP ConvertBlendOp(GLenum blendOp)
  {
      D3DBLENDOP d3dBlendOp = D3DBLENDOP_ADD;
  
      switch (blendOp)
      {
        case GL_FUNC_ADD:              d3dBlendOp = D3DBLENDOP_ADD;         break;
        case GL_FUNC_SUBTRACT:         d3dBlendOp = D3DBLENDOP_SUBTRACT;    break;
        case GL_FUNC_REVERSE_SUBTRACT: d3dBlendOp = D3DBLENDOP_REVSUBTRACT; break;
        default: UNREACHABLE();
      }
  
      return d3dBlendOp;
  }
  
  D3DSTENCILOP ConvertStencilOp(GLenum stencilOp)
  {
      D3DSTENCILOP d3dStencilOp = D3DSTENCILOP_KEEP;
  
      switch (stencilOp)
      {
        case GL_ZERO:      d3dStencilOp = D3DSTENCILOP_ZERO;    break;
        case GL_KEEP:      d3dStencilOp = D3DSTENCILOP_KEEP;    break;
        case GL_REPLACE:   d3dStencilOp = D3DSTENCILOP_REPLACE; break;
        case GL_INCR:      d3dStencilOp = D3DSTENCILOP_INCRSAT; break;
        case GL_DECR:      d3dStencilOp = D3DSTENCILOP_DECRSAT; break;
        case GL_INVERT:    d3dStencilOp = D3DSTENCILOP_INVERT;  break;
        case GL_INCR_WRAP: d3dStencilOp = D3DSTENCILOP_INCR;    break;
        case GL_DECR_WRAP: d3dStencilOp = D3DSTENCILOP_DECR;    break;
        default: UNREACHABLE();
      }
  
      return d3dStencilOp;
  }
  
  D3DTEXTUREADDRESS ConvertTextureWrap(GLenum wrap)
  {
      D3DTEXTUREADDRESS d3dWrap = D3DTADDRESS_WRAP;
  
      switch (wrap)
      {
        case GL_REPEAT:            d3dWrap = D3DTADDRESS_WRAP;   break;
        case GL_CLAMP_TO_EDGE:     d3dWrap = D3DTADDRESS_CLAMP;  break;
        case GL_MIRRORED_REPEAT:   d3dWrap = D3DTADDRESS_MIRROR; break;
        default: UNREACHABLE();
      }
  
      return d3dWrap;
  }
  
  D3DCULL ConvertCullMode(GLenum cullFace, GLenum frontFace)
  {
      D3DCULL cull = D3DCULL_CCW;
      switch (cullFace)
      {
        case GL_FRONT:
          cull = (frontFace == GL_CCW ? D3DCULL_CW : D3DCULL_CCW);
          break;
        case GL_BACK:
          cull = (frontFace == GL_CCW ? D3DCULL_CCW : D3DCULL_CW);
          break;
        case GL_FRONT_AND_BACK:
          cull = D3DCULL_NONE; // culling will be handled during draw
          break;
        default: UNREACHABLE();
      }
  
      return cull;
  }
  
  D3DCUBEMAP_FACES ConvertCubeFace(GLenum cubeFace)
  {
      D3DCUBEMAP_FACES face = D3DCUBEMAP_FACE_POSITIVE_X;
  
      switch (cubeFace)
      {
        case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
          face = D3DCUBEMAP_FACE_POSITIVE_X;
          break;
        case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
          face = D3DCUBEMAP_FACE_NEGATIVE_X;
          break;
        case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
          face = D3DCUBEMAP_FACE_POSITIVE_Y;
          break;
        case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
          face = D3DCUBEMAP_FACE_NEGATIVE_Y;
          break;
        case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
          face = D3DCUBEMAP_FACE_POSITIVE_Z;
          break;
        case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
          face = D3DCUBEMAP_FACE_NEGATIVE_Z;
          break;
        default: UNREACHABLE();
      }
  
      return face;
  }
  
  DWORD ConvertColorMask(bool red, bool green, bool blue, bool alpha)
  {
      return (red   ? D3DCOLORWRITEENABLE_RED   : 0) |
             (green ? D3DCOLORWRITEENABLE_GREEN : 0) |
             (blue  ? D3DCOLORWRITEENABLE_BLUE  : 0) |
             (alpha ? D3DCOLORWRITEENABLE_ALPHA : 0);
  }
  
  D3DTEXTUREFILTERTYPE ConvertMagFilter(GLenum magFilter, float maxAnisotropy)
  {
      if (maxAnisotropy > 1.0f)
      {
          return D3DTEXF_ANISOTROPIC;
      }
  
      D3DTEXTUREFILTERTYPE d3dMagFilter = D3DTEXF_POINT;
      switch (magFilter)
      {
        case GL_NEAREST: d3dMagFilter = D3DTEXF_POINT;  break;
        case GL_LINEAR:  d3dMagFilter = D3DTEXF_LINEAR; break;
        default: UNREACHABLE();
      }
  
      return d3dMagFilter;
  }
  
  void ConvertMinFilter(GLenum minFilter, D3DTEXTUREFILTERTYPE *d3dMinFilter, D3DTEXTUREFILTERTYPE *d3dMipFilter, float maxAnisotropy)
  {
      switch (minFilter)
      {
        case GL_NEAREST:
          *d3dMinFilter = D3DTEXF_POINT;
          *d3dMipFilter = D3DTEXF_NONE;
          break;
        case GL_LINEAR:
          *d3dMinFilter = D3DTEXF_LINEAR;
          *d3dMipFilter = D3DTEXF_NONE;
          break;
        case GL_NEAREST_MIPMAP_NEAREST:
          *d3dMinFilter = D3DTEXF_POINT;
          *d3dMipFilter = D3DTEXF_POINT;
          break;
        case GL_LINEAR_MIPMAP_NEAREST:
          *d3dMinFilter = D3DTEXF_LINEAR;
          *d3dMipFilter = D3DTEXF_POINT;
          break;
        case GL_NEAREST_MIPMAP_LINEAR:
          *d3dMinFilter = D3DTEXF_POINT;
          *d3dMipFilter = D3DTEXF_LINEAR;
          break;
        case GL_LINEAR_MIPMAP_LINEAR:
          *d3dMinFilter = D3DTEXF_LINEAR;
          *d3dMipFilter = D3DTEXF_LINEAR;
          break;
        default:
          *d3dMinFilter = D3DTEXF_POINT;
          *d3dMipFilter = D3DTEXF_NONE;
          UNREACHABLE();
      }
  
      if (maxAnisotropy > 1.0f)
      {
          *d3dMinFilter = D3DTEXF_ANISOTROPIC;
      }
  }
  
  }
  
  }
  

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