C++ (Cpp) AdobeCMYK_to_sRGB Examples

Example #1

File: fx_codec_jpx_unittest.cpp Project: MIPS/external-pdfium

TEST(fxcodec, CMYK_Rounding) {
  // Testing all floats from 0.0 to 1.0 takes about 35 seconds in release
  // builds and much longer in debug builds, so just test the known-dangerous
  // range.
  const FX_FLOAT startValue = 0.001f;
  const FX_FLOAT endValue = 0.003f;
  FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
  // Iterate through floats by incrementing the representation, as discussed in
  // https://randomascii.wordpress.com/2012/01/23/stupid-float-tricks-2/
  for (Float_t f = startValue; f.f < endValue; f.i++) {
    AdobeCMYK_to_sRGB(f.f, f.f, f.f, f.f, R, G, B);
  }
  // Check various other 'special' numbers.
  AdobeCMYK_to_sRGB(0.0f, 0.25f, 0.5f, 1.0f, R, G, B);
}

Example #2

File: fpdf_page_colors.cpp Project: abbro-ca/pdfium

FX_BOOL CPDF_ColorSpace::SetCMYK(FX_FLOAT* pBuf, FX_FLOAT c, FX_FLOAT m, FX_FLOAT y, FX_FLOAT k) const
{
    if (v_SetCMYK(pBuf, c, m, y, k)) {
        return TRUE;
    }
    FX_FLOAT R, G, B;
    AdobeCMYK_to_sRGB(c, m, y, k, R, G, B);
    return SetRGB(pBuf, R, G, B);
}

Example #3

File: fpdf_page_colors.cpp Project: abbro-ca/pdfium

FX_BOOL CPDF_DeviceCS::v_SetCMYK(FX_FLOAT* pBuf, FX_FLOAT c, FX_FLOAT m, FX_FLOAT y, FX_FLOAT k) const
{
    if (m_Family == PDFCS_DEVICERGB) {
        AdobeCMYK_to_sRGB(c, m, y, k, pBuf[0], pBuf[1], pBuf[2]);
        return TRUE;
    }
    if (m_Family == PDFCS_DEVICECMYK) {
        pBuf[0] = c;
        pBuf[1] = m;
        pBuf[2] = y;
        pBuf[3] = k;
        return TRUE;
    }
    return FALSE;
}

Example #4

File: fpdf_page_colors.cpp Project: azunite/libpdfium

FX_BOOL CPDF_DeviceCS::GetRGB(FX_FLOAT* pBuf,
                              FX_FLOAT& R,
                              FX_FLOAT& G,
                              FX_FLOAT& B) const {
  if (m_Family == PDFCS_DEVICERGB) {
    R = pBuf[0];
    if (R < 0) {
      R = 0;
    } else if (R > 1) {
      R = 1;
    }
    G = pBuf[1];
    if (G < 0) {
      G = 0;
    } else if (G > 1) {
      G = 1;
    }
    B = pBuf[2];
    if (B < 0) {
      B = 0;
    } else if (B > 1) {
      B = 1;
    }
  } else if (m_Family == PDFCS_DEVICEGRAY) {
    R = *pBuf;
    if (R < 0) {
      R = 0;
    } else if (R > 1) {
      R = 1;
    }
    G = B = R;
  } else if (m_Family == PDFCS_DEVICECMYK) {
    if (!m_dwStdConversion) {
      AdobeCMYK_to_sRGB(pBuf[0], pBuf[1], pBuf[2], pBuf[3], R, G, B);
    } else {
      FX_FLOAT k = pBuf[3];
      R = 1.0f - FX_MIN(1.0f, pBuf[0] + k);
      G = 1.0f - FX_MIN(1.0f, pBuf[1] + k);
      B = 1.0f - FX_MIN(1.0f, pBuf[2] + k);
    }
  } else {
    ASSERT(m_Family == PDFCS_PATTERN);
    R = G = B = 0;
    return FALSE;
  }
  return TRUE;
}