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

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• Hash : bdf2d80f
  Author :
  Date : 2013-02-28T23:16:20
  

  Add precompiled header support for the libGLESv2 project.
  
  TRAC #22518
  
  Signed-off-by: Geoff Lang
  Signed-off-by: Shannon Woods
  Author: Jamie Madill
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1938 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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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 "libGLESv2/mathutil.h"
  #include "libGLESv2/Context.h"
  
  #include "common/debug.h"
  
  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::Color 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;
      }
  }
  
  D3DFORMAT ConvertRenderbufferFormat(GLenum format)
  {
      switch (format)
      {
        case GL_NONE:                 return D3DFMT_NULL;
        case GL_RGBA4:
        case GL_RGB5_A1:
        case GL_RGBA8_OES:            return D3DFMT_A8R8G8B8;
        case GL_RGB565:               return D3DFMT_R5G6B5;
        case GL_RGB8_OES:             return D3DFMT_X8R8G8B8;
        case GL_DEPTH_COMPONENT16:
        case GL_STENCIL_INDEX8:       
        case GL_DEPTH24_STENCIL8_OES: return D3DFMT_D24S8;
        default: UNREACHABLE();       return D3DFMT_A8R8G8B8;
      }
  }
  
  D3DMULTISAMPLE_TYPE GetMultisampleTypeFromSamples(GLsizei samples)
  {
      if (samples <= 1)
          return D3DMULTISAMPLE_NONE;
      else
          return (D3DMULTISAMPLE_TYPE)samples;
  }
  
  }
  
  namespace d3d9_gl
  {
  
  unsigned int GetStencilSize(D3DFORMAT stencilFormat)
  {
      if (stencilFormat == D3DFMT_INTZ)
      {
          return 8;
      }
      switch(stencilFormat)
      {
        case D3DFMT_D24FS8:
        case D3DFMT_D24S8:
          return 8;
        case D3DFMT_D24X4S4:
          return 4;
        case D3DFMT_D15S1:
          return 1;
        case D3DFMT_D16_LOCKABLE:
        case D3DFMT_D32:
        case D3DFMT_D24X8:
        case D3DFMT_D32F_LOCKABLE:
        case D3DFMT_D16:
          return 0;
      //case D3DFMT_D32_LOCKABLE:  return 0;   // DirectX 9Ex only
      //case D3DFMT_S8_LOCKABLE:   return 8;   // DirectX 9Ex only
        default:
          return 0;
      }
  }
  
  unsigned int GetAlphaSize(D3DFORMAT colorFormat)
  {
      switch (colorFormat)
      {
        case D3DFMT_A16B16G16R16F:
          return 16;
        case D3DFMT_A32B32G32R32F:
          return 32;
        case D3DFMT_A2R10G10B10:
          return 2;
        case D3DFMT_A8R8G8B8:
          return 8;
        case D3DFMT_A1R5G5B5:
          return 1;
        case D3DFMT_X8R8G8B8:
        case D3DFMT_R5G6B5:
          return 0;
        default:
          return 0;
      }
  }
  
  GLsizei GetSamplesFromMultisampleType(D3DMULTISAMPLE_TYPE type)
  {
      if (type == D3DMULTISAMPLE_NONMASKABLE)
          return 0;
      else
          return type;
  }
  
  bool IsFormatChannelEquivalent(D3DFORMAT d3dformat, GLenum format)
  {
      switch (d3dformat)
      {
        case D3DFMT_L8:
          return (format == GL_LUMINANCE);
        case D3DFMT_A8L8:
          return (format == GL_LUMINANCE_ALPHA);
        case D3DFMT_DXT1:
          return (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT || format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
        case D3DFMT_DXT3:
          return (format == GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE);
        case D3DFMT_DXT5:
          return (format == GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE);
        case D3DFMT_A8R8G8B8:
        case D3DFMT_A16B16G16R16F:
        case D3DFMT_A32B32G32R32F:
          return (format == GL_RGBA || format == GL_BGRA_EXT);
        case D3DFMT_X8R8G8B8:
          return (format == GL_RGB);
        default:
          if (d3dformat == D3DFMT_INTZ && gl::IsDepthTexture(format))
              return true;
          return false;
      }
  }
  
  GLenum ConvertBackBufferFormat(D3DFORMAT format)
  {
      switch (format)
      {
        case D3DFMT_A4R4G4B4: return GL_RGBA4;
        case D3DFMT_A8R8G8B8: return GL_RGBA8_OES;
        case D3DFMT_A1R5G5B5: return GL_RGB5_A1;
        case D3DFMT_R5G6B5:   return GL_RGB565;
        case D3DFMT_X8R8G8B8: return GL_RGB8_OES;
        default:
          UNREACHABLE();
      }
  
      return GL_RGBA4;
  }
  
  GLenum ConvertDepthStencilFormat(D3DFORMAT format)
  {
      if (format == D3DFMT_INTZ)
      {
          return GL_DEPTH24_STENCIL8_OES;
      }
      switch (format)
      {
        case D3DFMT_D16:
        case D3DFMT_D24X8:
          return GL_DEPTH_COMPONENT16;
        case D3DFMT_D24S8:
          return GL_DEPTH24_STENCIL8_OES;
        case D3DFMT_UNKNOWN:
          return GL_NONE;
        default:
          UNREACHABLE();
      }
  
      return GL_DEPTH24_STENCIL8_OES;
  }
  
  GLenum ConvertRenderTargetFormat(D3DFORMAT format)
  {
      if (format == D3DFMT_INTZ)
      {
          return GL_DEPTH24_STENCIL8_OES;
      }
      
      switch (format)
      {
        case D3DFMT_A4R4G4B4: return GL_RGBA4;
        case D3DFMT_A8R8G8B8: return GL_RGBA8_OES;
        case D3DFMT_A1R5G5B5: return GL_RGB5_A1;
        case D3DFMT_R5G6B5:   return GL_RGB565;
        case D3DFMT_X8R8G8B8: return GL_RGB8_OES;
        case D3DFMT_D16:
        case D3DFMT_D24X8:
          return GL_DEPTH_COMPONENT16;
        case D3DFMT_D24S8:
          return GL_DEPTH24_STENCIL8_OES;
        case D3DFMT_UNKNOWN:
          return GL_NONE;
        default:
          UNREACHABLE();
      }
  
      return GL_RGBA4;
  }
  
  GLenum GetEquivalentFormat(D3DFORMAT format)
  {
      if (format == D3DFMT_INTZ)
          return GL_DEPTH24_STENCIL8_OES;
      if (format == D3DFMT_NULL)
          return GL_NONE;
  
      switch (format)
      {
        case D3DFMT_A4R4G4B4:             return GL_RGBA4;
        case D3DFMT_A8R8G8B8:             return GL_RGBA8_OES;
        case D3DFMT_A1R5G5B5:             return GL_RGB5_A1;
        case D3DFMT_R5G6B5:               return GL_RGB565;
        case D3DFMT_X8R8G8B8:             return GL_RGB8_OES;
        case D3DFMT_D16:                  return GL_DEPTH_COMPONENT16;
        case D3DFMT_D24S8:                return GL_DEPTH24_STENCIL8_OES;
        case D3DFMT_UNKNOWN:              return GL_NONE;
        case D3DFMT_DXT1:                 return GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
        case D3DFMT_DXT3:                 return GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE;
        case D3DFMT_DXT5:                 return GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE;
        case D3DFMT_A32B32G32R32F:        return GL_RGBA32F_EXT;
        case D3DFMT_A16B16G16R16F:        return GL_RGBA16F_EXT;
        case D3DFMT_L8:                   return GL_LUMINANCE8_EXT;
        case D3DFMT_A8L8:                 return GL_LUMINANCE8_ALPHA8_EXT;
        default:              UNREACHABLE();
          return GL_NONE;
      }
  }
  
  }
  
  namespace d3d9
  {
  
  bool IsCompressedFormat(D3DFORMAT surfaceFormat)
  {
      switch(surfaceFormat)
      {
        case D3DFMT_DXT1:
        case D3DFMT_DXT2:
        case D3DFMT_DXT3:
        case D3DFMT_DXT4:
        case D3DFMT_DXT5:
          return true;
        default:
          return false;
      }
  }
  
  size_t ComputeRowSize(D3DFORMAT format, unsigned int width)
  {
      if (format == D3DFMT_INTZ)
      {
          return 4 * width;
      }
      switch (format)
      {
        case D3DFMT_L8:
            return 1 * width;
        case D3DFMT_A8L8:
            return 2 * width;
        case D3DFMT_X8R8G8B8:
        case D3DFMT_A8R8G8B8:
          return 4 * width;
        case D3DFMT_A16B16G16R16F:
          return 8 * width;
        case D3DFMT_A32B32G32R32F:
          return 16 * width;
        case D3DFMT_DXT1:
          return 8 * ((width + 3) / 4);
        case D3DFMT_DXT3:
        case D3DFMT_DXT5:
          return 16 * ((width + 3) / 4);
        default:
          UNREACHABLE();
          return 0;
      }
  }
  
  }
  

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