| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "../../../include/fpdfapi/fpdf_page.h" |
| #include "../../../include/fpdfapi/fpdf_module.h" |
| #include "../../../include/fxcodec/fx_codec.h" |
| #include "pageint.h" |
| #include <limits.h> |
| void sRGB_to_AdobeCMYK(FX_FLOAT R, FX_FLOAT G, FX_FLOAT B, FX_FLOAT& c, FX_FLOAT& m, FX_FLOAT& y, FX_FLOAT& k) |
| { |
| c = 1.0f - R; |
| m = 1.0f - G; |
| y = 1.0f - B; |
| k = c; |
| if (m < k) { |
| k = m; |
| } |
| if (y < k) { |
| k = y; |
| } |
| } |
| CPDF_DeviceCS::CPDF_DeviceCS(int family) |
| { |
| m_Family = family; |
| if (m_Family == PDFCS_DEVICERGB) { |
| m_nComponents = 3; |
| } else if (m_Family == PDFCS_DEVICEGRAY) { |
| m_nComponents = 1; |
| } else { |
| m_nComponents = 4; |
| } |
| } |
| 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; |
| } |
| FX_BOOL CPDF_DeviceCS::v_GetCMYK(FX_FLOAT* pBuf, FX_FLOAT& c, FX_FLOAT& m, FX_FLOAT& y, FX_FLOAT& k) const |
| { |
| if (m_Family != PDFCS_DEVICECMYK) { |
| return FALSE; |
| } |
| c = pBuf[0]; |
| m = pBuf[1]; |
| y = pBuf[2]; |
| k = pBuf[3]; |
| return TRUE; |
| } |
| FX_BOOL CPDF_DeviceCS::SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const |
| { |
| if (m_Family == PDFCS_DEVICERGB) { |
| pBuf[0] = R; |
| pBuf[1] = G; |
| pBuf[2] = B; |
| return TRUE; |
| } else if (m_Family == PDFCS_DEVICEGRAY) { |
| if (R == G && R == B) { |
| *pBuf = R; |
| return TRUE; |
| } else { |
| return FALSE; |
| } |
| } else if (m_Family == PDFCS_DEVICECMYK) { |
| sRGB_to_AdobeCMYK(R, G, B, pBuf[0], pBuf[1], pBuf[2], pBuf[3]); |
| return TRUE; |
| } |
| return FALSE; |
| } |
| 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; |
| } else if (m_Family == PDFCS_DEVICEGRAY) { |
| return FALSE; |
| } else if (m_Family == PDFCS_DEVICECMYK) { |
| pBuf[0] = c; |
| pBuf[1] = m; |
| pBuf[2] = y; |
| pBuf[3] = k; |
| return TRUE; |
| } |
| return FALSE; |
| } |
| static void ReverseRGB(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels) |
| { |
| if (pDestBuf == pSrcBuf) |
| for (int i = 0; i < pixels; i ++) { |
| FX_BYTE temp = pDestBuf[2]; |
| pDestBuf[2] = pDestBuf[0]; |
| pDestBuf[0] = temp; |
| pDestBuf += 3; |
| } |
| else |
| for (int i = 0; i < pixels; i ++) { |
| *pDestBuf ++ = pSrcBuf[2]; |
| *pDestBuf ++ = pSrcBuf[1]; |
| *pDestBuf ++ = pSrcBuf[0]; |
| pSrcBuf += 3; |
| } |
| } |
| void CPDF_DeviceCS::TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| if (bTransMask && m_Family == PDFCS_DEVICECMYK) { |
| for (int i = 0; i < pixels; i ++) { |
| int k = 255 - pSrcBuf[3]; |
| pDestBuf[0] = ((255 - pSrcBuf[0]) * k) / 255; |
| pDestBuf[1] = ((255 - pSrcBuf[1]) * k) / 255; |
| pDestBuf[2] = ((255 - pSrcBuf[2]) * k) / 255; |
| pDestBuf += 3; |
| pSrcBuf += 4; |
| } |
| return; |
| } |
| if (m_Family == PDFCS_DEVICERGB) { |
| ReverseRGB(pDestBuf, pSrcBuf, pixels); |
| } else if (m_Family == PDFCS_DEVICEGRAY) { |
| for (int i = 0; i < pixels; i ++) { |
| *pDestBuf ++ = pSrcBuf[i]; |
| *pDestBuf ++ = pSrcBuf[i]; |
| *pDestBuf ++ = pSrcBuf[i]; |
| } |
| } else { |
| for (int i = 0; i < pixels; i ++) { |
| if (!m_dwStdConversion) { |
| AdobeCMYK_to_sRGB1(pSrcBuf[0], pSrcBuf[1], pSrcBuf[2], pSrcBuf[3], pDestBuf[2], pDestBuf[1], pDestBuf[0]); |
| } else { |
| FX_BYTE k = pSrcBuf[3]; |
| pDestBuf[2] = 255 - FX_MIN(255, pSrcBuf[0] + k); |
| pDestBuf[1] = 255 - FX_MIN(255, pSrcBuf[1] + k); |
| pDestBuf[0] = 255 - FX_MIN(255, pSrcBuf[2] + k); |
| } |
| pSrcBuf += 4; |
| pDestBuf += 3; |
| } |
| } |
| } |
| const FX_BYTE g_sRGBSamples1[] = { |
| 0, 3, 6, 10, 13, 15, 18, 20, 22, 23, 25, 27, 28, 30, 31, 32, |
| 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, |
| 49, 50, 51, 52, 53, 53, 54, 55, 56, 56, 57, 58, 58, 59, 60, 61, |
| 61, 62, 62, 63, 64, 64, 65, 66, 66, 67, 67, 68, 68, 69, 70, 70, |
| 71, 71, 72, 72, 73, 73, 74, 74, 75, 76, 76, 77, 77, 78, 78, 79, |
| 79, 79, 80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 85, 86, |
| 86, 87, 87, 88, 88, 88, 89, 89, 90, 90, 91, 91, 91, 92, 92, 93, |
| 93, 93, 94, 94, 95, 95, 95, 96, 96, 97, 97, 97, 98, 98, 98, 99, |
| 99, 99, 100, 100, 101, 101, 101, 102, 102, 102, 103, 103, 103, 104, 104, 104, |
| 105, 105, 106, 106, 106, 107, 107, 107, 108, 108, 108, 109, 109, 109, 110, 110, |
| 110, 110, 111, 111, 111, 112, 112, 112, 113, 113, 113, 114, 114, 114, 115, 115, |
| 115, 115, 116, 116, 116, 117, 117, 117, 118, 118, 118, 118, 119, 119, 119, 120, |
| }; |
| const FX_BYTE g_sRGBSamples2[] = { |
| 120, 121, 122, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, |
| 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 148, 149, 150, 151, |
| 152, 153, 154, 155, 155, 156, 157, 158, 159, 159, 160, 161, 162, 163, 163, 164, |
| 165, 166, 167, 167, 168, 169, 170, 170, 171, 172, 173, 173, 174, 175, 175, 176, |
| 177, 178, 178, 179, 180, 180, 181, 182, 182, 183, 184, 185, 185, 186, 187, 187, |
| 188, 189, 189, 190, 190, 191, 192, 192, 193, 194, 194, 195, 196, 196, 197, 197, |
| 198, 199, 199, 200, 200, 201, 202, 202, 203, 203, 204, 205, 205, 206, 206, 207, |
| 208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214, 214, 215, 215, 216, |
| 216, 217, 218, 218, 219, 219, 220, 220, 221, 221, 222, 222, 223, 223, 224, 224, |
| 225, 226, 226, 227, 227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233, |
| 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 238, 239, 239, 240, 240, |
| 241, 241, 242, 242, 243, 243, 244, 244, 245, 245, 246, 246, 246, 247, 247, 248, |
| 248, 249, 249, 250, 250, 251, 251, 251, 252, 252, 253, 253, 254, 254, 255, 255, |
| }; |
| |
| static FX_FLOAT RGB_Conversion(FX_FLOAT colorComponent) |
| { |
| if (colorComponent > 1) { |
| colorComponent = 1; |
| } |
| if (colorComponent < 0) { |
| colorComponent = 0; |
| } |
| int scale = (int)(colorComponent * 1023); |
| if (scale < 0) { |
| scale = 0; |
| } |
| if (scale < 192) { |
| colorComponent = (g_sRGBSamples1[scale] / 255.0f); |
| } |
| else { |
| colorComponent = (g_sRGBSamples2[scale / 4 - 48] / 255.0f); |
| } |
| return colorComponent; |
| } |
| |
| static void XYZ_to_sRGB(FX_FLOAT X, FX_FLOAT Y, FX_FLOAT Z, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) |
| { |
| FX_FLOAT R1 = 3.2410f * X - 1.5374f * Y - 0.4986f * Z; |
| FX_FLOAT G1 = -0.9692f * X + 1.8760f * Y + 0.0416f * Z; |
| FX_FLOAT B1 = 0.0556f * X - 0.2040f * Y + 1.0570f * Z; |
| |
| R = RGB_Conversion(R1); |
| G = RGB_Conversion(G1); |
| B = RGB_Conversion(B1); |
| } |
| |
| static void XYZ_to_sRGB_WhitePoint(FX_FLOAT X, FX_FLOAT Y, FX_FLOAT Z, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B, FX_FLOAT Xw, FX_FLOAT Yw, FX_FLOAT Zw) |
| { |
| // The following RGB_xyz is based on |
| // sRGB value {Rx,Ry}={0.64, 0.33}, {Gx,Gy}={0.30, 0.60}, {Bx,By}={0.15, 0.06} |
| |
| FX_FLOAT Rx = 0.64f, Ry = 0.33f; |
| FX_FLOAT Gx = 0.30f, Gy = 0.60f; |
| FX_FLOAT Bx = 0.15f, By = 0.06f; |
| CFX_Matrix_3by3 RGB_xyz(Rx, Gx, Bx, Ry, Gy, By, 1 - Rx - Ry, 1 - Gx - Gy, 1 - Bx - By); |
| CFX_Vector_3by1 whitePoint(Xw, Yw, Zw); |
| CFX_Vector_3by1 XYZ(X, Y, Z); |
| |
| CFX_Vector_3by1 RGB_Sum_XYZ = RGB_xyz.Inverse().TransformVector(whitePoint); |
| CFX_Matrix_3by3 RGB_SUM_XYZ_DIAG(RGB_Sum_XYZ.a, 0, 0, 0, RGB_Sum_XYZ.b, 0, 0, 0, RGB_Sum_XYZ.c); |
| CFX_Matrix_3by3 M = RGB_xyz.Multiply(RGB_SUM_XYZ_DIAG); |
| CFX_Vector_3by1 RGB = M.Inverse().TransformVector(XYZ); |
| |
| R = RGB_Conversion(RGB.a); |
| G = RGB_Conversion(RGB.b); |
| B = RGB_Conversion(RGB.c); |
| } |
| class CPDF_CalGray : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_CalGray(); |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| virtual void TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask = FALSE) const; |
| FX_BOOL SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const; |
| FX_FLOAT m_WhitePoint[3]; |
| FX_FLOAT m_BlackPoint[3]; |
| FX_FLOAT m_Gamma; |
| }; |
| CPDF_CalGray::CPDF_CalGray() |
| { |
| m_Family = PDFCS_CALGRAY; |
| m_nComponents = 1; |
| } |
| FX_BOOL CPDF_CalGray::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Dictionary* pDict = pArray->GetDict(1); |
| CPDF_Array* pParam = pDict->GetArray(FX_BSTRC("WhitePoint")); |
| int i; |
| for (i = 0; i < 3; i ++) { |
| m_WhitePoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("BlackPoint")); |
| for (i = 0; i < 3; i ++) { |
| m_BlackPoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| m_Gamma = pDict->GetNumber(FX_BSTRC("Gamma")); |
| if (m_Gamma == 0) { |
| m_Gamma = 1.0f; |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_CalGray::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| R = G = B = *pBuf; |
| return TRUE; |
| } |
| FX_BOOL CPDF_CalGray::SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const |
| { |
| if (R == G && R == B) { |
| *pBuf = R; |
| return TRUE; |
| } else { |
| return FALSE; |
| } |
| } |
| void CPDF_CalGray::TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| for (int i = 0; i < pixels; i ++) { |
| *pDestBuf ++ = pSrcBuf[i]; |
| *pDestBuf ++ = pSrcBuf[i]; |
| *pDestBuf ++ = pSrcBuf[i]; |
| } |
| } |
| class CPDF_CalRGB : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_CalRGB(); |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| virtual void TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask = FALSE) const; |
| FX_BOOL SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const; |
| FX_FLOAT m_WhitePoint[3]; |
| FX_FLOAT m_BlackPoint[3]; |
| FX_FLOAT m_Gamma[3]; |
| FX_FLOAT m_Matrix[9]; |
| FX_BOOL m_bGamma, m_bMatrix; |
| }; |
| CPDF_CalRGB::CPDF_CalRGB() |
| { |
| m_Family = PDFCS_CALRGB; |
| m_nComponents = 3; |
| } |
| FX_BOOL CPDF_CalRGB::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Dictionary* pDict = pArray->GetDict(1); |
| CPDF_Array* pParam = pDict->GetArray(FX_BSTRC("WhitePoint")); |
| int i; |
| for (i = 0; i < 3; i ++) { |
| m_WhitePoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("BlackPoint")); |
| for (i = 0; i < 3; i ++) { |
| m_BlackPoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("Gamma")); |
| if (pParam) { |
| m_bGamma = TRUE; |
| for (i = 0; i < 3; i ++) { |
| m_Gamma[i] = pParam->GetNumber(i); |
| } |
| } else { |
| m_bGamma = FALSE; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("Matrix")); |
| if (pParam) { |
| m_bMatrix = TRUE; |
| for (i = 0; i < 9; i ++) { |
| m_Matrix[i] = pParam->GetNumber(i); |
| } |
| } else { |
| m_bMatrix = FALSE; |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_CalRGB::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| FX_FLOAT A_ = pBuf[0]; |
| FX_FLOAT B_ = pBuf[1]; |
| FX_FLOAT C_ = pBuf[2]; |
| if (m_bGamma) { |
| A_ = (FX_FLOAT)FXSYS_pow(A_, m_Gamma[0]); |
| B_ = (FX_FLOAT)FXSYS_pow(B_, m_Gamma[1]); |
| C_ = (FX_FLOAT)FXSYS_pow(C_, m_Gamma[2]); |
| } |
| FX_FLOAT X, Y, Z; |
| if (m_bMatrix) { |
| X = m_Matrix[0] * A_ + m_Matrix[3] * B_ + m_Matrix[6] * C_; |
| Y = m_Matrix[1] * A_ + m_Matrix[4] * B_ + m_Matrix[7] * C_; |
| Z = m_Matrix[2] * A_ + m_Matrix[5] * B_ + m_Matrix[8] * C_; |
| } else { |
| X = A_; |
| Y = B_; |
| Z = C_; |
| } |
| XYZ_to_sRGB_WhitePoint(X, Y, Z, R, G, B, m_WhitePoint[0], m_WhitePoint[1], m_WhitePoint[2]); |
| return TRUE; |
| } |
| FX_BOOL CPDF_CalRGB::SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const |
| { |
| pBuf[0] = R; |
| pBuf[1] = G; |
| pBuf[2] = B; |
| return TRUE; |
| } |
| void CPDF_CalRGB::TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| if (bTransMask) { |
| FX_FLOAT Cal[3]; |
| FX_FLOAT R, G, B; |
| for(int i = 0; i < pixels; i ++) { |
| Cal[0] = ((FX_FLOAT)pSrcBuf[2]) / 255; |
| Cal[1] = ((FX_FLOAT)pSrcBuf[1]) / 255; |
| Cal[2] = ((FX_FLOAT)pSrcBuf[0]) / 255; |
| GetRGB(Cal, R, G, B); |
| pDestBuf[0] = FXSYS_round(B * 255); |
| pDestBuf[1] = FXSYS_round(G * 255); |
| pDestBuf[2] = FXSYS_round(R * 255); |
| pSrcBuf += 3; |
| pDestBuf += 3; |
| } |
| } |
| ReverseRGB(pDestBuf, pSrcBuf, pixels); |
| } |
| class CPDF_LabCS : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_LabCS() |
| { |
| m_Family = PDFCS_LAB; |
| m_nComponents = 3; |
| } |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| virtual void GetDefaultValue(int iComponent, FX_FLOAT& value, FX_FLOAT& min, FX_FLOAT& max) const; |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| FX_BOOL SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const; |
| virtual void TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask = FALSE) const; |
| FX_FLOAT m_WhitePoint[3]; |
| FX_FLOAT m_BlackPoint[3]; |
| FX_FLOAT m_Ranges[4]; |
| }; |
| FX_BOOL CPDF_LabCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Dictionary* pDict = pArray->GetDict(1); |
| CPDF_Array* pParam = pDict->GetArray(FX_BSTRC("WhitePoint")); |
| int i; |
| for (i = 0; i < 3; i ++) { |
| m_WhitePoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("BlackPoint")); |
| for (i = 0; i < 3; i ++) { |
| m_BlackPoint[i] = pParam ? pParam->GetNumber(i) : 0; |
| } |
| pParam = pDict->GetArray(FX_BSTRC("Range")); |
| const FX_FLOAT def_ranges[4] = { -100 * 1.0f, 100 * 1.0f, -100 * 1.0f, 100 * 1.0f}; |
| for (i = 0; i < 4; i ++) { |
| m_Ranges[i] = pParam ? pParam->GetNumber(i) : def_ranges[i]; |
| } |
| return TRUE; |
| } |
| void CPDF_LabCS::GetDefaultValue(int iComponent, FX_FLOAT& value, FX_FLOAT& min, FX_FLOAT& max) const |
| { |
| value = 0; |
| if (iComponent == 0) { |
| min = 0; |
| max = 100 * 1.0f; |
| } else { |
| min = m_Ranges[iComponent * 2 - 2]; |
| max = m_Ranges[iComponent * 2 - 1]; |
| if (value < min) { |
| value = min; |
| } else if (value > max) { |
| value = max; |
| } |
| } |
| } |
| FX_BOOL CPDF_LabCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| FX_FLOAT Lstar = pBuf[0]; |
| FX_FLOAT astar = pBuf[1]; |
| FX_FLOAT bstar = pBuf[2]; |
| FX_FLOAT M = (Lstar + 16.0f) / 116.0f; |
| FX_FLOAT L = M + astar / 500.0f; |
| FX_FLOAT N = M - bstar / 200.0f; |
| FX_FLOAT X, Y, Z; |
| if (L < 0.2069f) { |
| X = 0.957f * 0.12842f * (L - 0.1379f); |
| } else { |
| X = 0.957f * L * L * L; |
| } |
| if (M < 0.2069f) { |
| Y = 0.12842f * (M - 0.1379f); |
| } else { |
| Y = M * M * M; |
| } |
| if (N < 0.2069f) { |
| Z = 1.0889f * 0.12842f * (N - 0.1379f); |
| } else { |
| Z = 1.0889f * N * N * N; |
| } |
| XYZ_to_sRGB(X, Y, Z, R, G, B); |
| return TRUE; |
| } |
| FX_BOOL CPDF_LabCS::SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const |
| { |
| return FALSE; |
| } |
| void CPDF_LabCS::TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| for (int i = 0; i < pixels; i ++) { |
| FX_FLOAT lab[3]; |
| FX_FLOAT R, G, B; |
| lab[0] = (pSrcBuf[0] * 100 / 255.0f); |
| lab[1] = (FX_FLOAT)(pSrcBuf[1] - 128); |
| lab[2] = (FX_FLOAT)(pSrcBuf[2] - 128); |
| GetRGB(lab, R, G, B); |
| pDestBuf[0] = (FX_INT32)(B * 255); |
| pDestBuf[1] = (FX_INT32)(G * 255); |
| pDestBuf[2] = (FX_INT32)(R * 255); |
| pDestBuf += 3; |
| pSrcBuf += 3; |
| } |
| } |
| CPDF_IccProfile::CPDF_IccProfile(FX_LPCBYTE pData, FX_DWORD dwSize, int nComponents) |
| { |
| m_bsRGB = nComponents == 3 && dwSize == 3144 && FXSYS_memcmp32(pData + 0x190, "sRGB IEC61966-2.1", 17) == 0; |
| m_pTransform = NULL; |
| if (!m_bsRGB && CPDF_ModuleMgr::Get()->GetIccModule()) { |
| m_pTransform = CPDF_ModuleMgr::Get()->GetIccModule()->CreateTransform_sRGB(pData, dwSize, nComponents); |
| } |
| } |
| CPDF_IccProfile::~CPDF_IccProfile() |
| { |
| if (m_pTransform) { |
| CPDF_ModuleMgr::Get()->GetIccModule()->DestroyTransform(m_pTransform); |
| } |
| } |
| class CPDF_ICCBasedCS : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_ICCBasedCS(); |
| virtual ~CPDF_ICCBasedCS(); |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| void GetDefaultValue(int i, FX_FLOAT& min, FX_FLOAT& max) const |
| { |
| min = m_pRanges[i * 2]; |
| max = m_pRanges[i * 2 + 1]; |
| } |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| FX_BOOL v_GetCMYK(FX_FLOAT* pBuf, FX_FLOAT& c, FX_FLOAT& m, FX_FLOAT& y, FX_FLOAT& k) const; |
| FX_BOOL SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const; |
| virtual void EnableStdConversion(FX_BOOL bEnabled); |
| virtual void TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask = FALSE) const; |
| FX_FLOAT* m_pRanges; |
| CPDF_IccProfile* m_pProfile; |
| CPDF_ColorSpace* m_pAlterCS; |
| FX_LPBYTE m_pCache; |
| FX_BOOL m_bOwn; |
| }; |
| CPDF_ICCBasedCS::CPDF_ICCBasedCS() |
| { |
| m_pAlterCS = NULL; |
| m_pProfile = NULL; |
| m_Family = PDFCS_ICCBASED; |
| m_pCache = NULL; |
| m_pRanges = NULL; |
| m_bOwn = FALSE; |
| } |
| CPDF_ICCBasedCS::~CPDF_ICCBasedCS() |
| { |
| if (m_pCache) { |
| FX_Free(m_pCache); |
| } |
| if (m_pRanges) { |
| FX_Free(m_pRanges); |
| } |
| if (m_pAlterCS && m_bOwn) { |
| m_pAlterCS->ReleaseCS(); |
| } |
| if (m_pProfile && m_pDocument) { |
| m_pDocument->GetPageData()->ReleaseIccProfile(NULL, m_pProfile); |
| } |
| } |
| FX_BOOL CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Stream* pStream = pArray->GetStream(1); |
| if (pStream == NULL) { |
| return FALSE; |
| } |
| CPDF_Dictionary* pDict = pStream->GetDict(); |
| m_nComponents = pDict ? pDict->GetInteger(FX_BSTRC("N")) : 0; |
| if (m_nComponents <= 0 || m_nComponents > (1 << 16)) { |
| return FALSE; |
| } |
| CPDF_Array* pRanges = pDict->GetArray(FX_BSTRC("Range")); |
| m_pRanges = FX_Alloc(FX_FLOAT, m_nComponents * 2); |
| for (int i = 0; i < m_nComponents * 2; i ++) { |
| if (pRanges) { |
| m_pRanges[i] = pRanges->GetNumber(i); |
| } else if (i % 2) { |
| m_pRanges[i] = 1.0f; |
| } else { |
| m_pRanges[i] = 0; |
| } |
| } |
| m_pProfile = pDoc->LoadIccProfile(pStream, m_nComponents); |
| if (!m_pProfile) { |
| return FALSE; |
| } |
| if (m_pProfile->m_pTransform == NULL) { |
| CPDF_Object* pAlterCSObj = pDict ? pDict->GetElementValue(FX_BSTRC("Alternate")) : NULL; |
| if (pAlterCSObj) { |
| CPDF_ColorSpace* alter_cs = CPDF_ColorSpace::Load(pDoc, pAlterCSObj); |
| if (alter_cs) { |
| if (alter_cs->CountComponents() > m_nComponents) { |
| alter_cs->ReleaseCS(); |
| } else { |
| m_pAlterCS = alter_cs; |
| m_bOwn = TRUE; |
| } |
| } |
| } |
| if (!m_pAlterCS) { |
| if (m_nComponents == 3) { |
| m_pAlterCS = GetStockCS(PDFCS_DEVICERGB); |
| } else if (m_nComponents == 4) { |
| m_pAlterCS = GetStockCS(PDFCS_DEVICECMYK); |
| } else { |
| m_pAlterCS = GetStockCS(PDFCS_DEVICEGRAY); |
| } |
| } |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_ICCBasedCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| if (m_pProfile && m_pProfile->m_bsRGB) { |
| R = pBuf[0]; |
| G = pBuf[1]; |
| B = pBuf[2]; |
| return TRUE; |
| } |
| ICodec_IccModule *pIccModule = CPDF_ModuleMgr::Get()->GetIccModule(); |
| if (m_pProfile->m_pTransform == NULL || pIccModule == NULL) { |
| if (m_pAlterCS) { |
| m_pAlterCS->GetRGB(pBuf, R, G, B); |
| } else { |
| R = G = B = 0.0f; |
| } |
| return TRUE; |
| } |
| FX_FLOAT rgb[3]; |
| pIccModule->SetComponents(m_nComponents); |
| pIccModule->Translate(m_pProfile->m_pTransform, pBuf, rgb); |
| R = rgb[0]; |
| G = rgb[1]; |
| B = rgb[2]; |
| return TRUE; |
| } |
| FX_BOOL CPDF_ICCBasedCS::v_GetCMYK(FX_FLOAT* pBuf, FX_FLOAT& c, FX_FLOAT& m, FX_FLOAT& y, FX_FLOAT& k) const |
| { |
| if (m_nComponents != 4) { |
| return FALSE; |
| } |
| c = pBuf[0]; |
| m = pBuf[1]; |
| y = pBuf[2]; |
| k = pBuf[3]; |
| return TRUE; |
| } |
| FX_BOOL CPDF_ICCBasedCS::SetRGB(FX_FLOAT* pBuf, FX_FLOAT R, FX_FLOAT G, FX_FLOAT B) const |
| { |
| return FALSE; |
| } |
| void CPDF_ICCBasedCS::EnableStdConversion(FX_BOOL bEnabled) |
| { |
| CPDF_ColorSpace::EnableStdConversion(bEnabled); |
| if (m_pAlterCS) { |
| m_pAlterCS->EnableStdConversion(bEnabled); |
| } |
| } |
| void CPDF_ICCBasedCS::TranslateImageLine(FX_LPBYTE pDestBuf, FX_LPCBYTE pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| if (m_pProfile->m_bsRGB) { |
| ReverseRGB(pDestBuf, pSrcBuf, pixels); |
| } else if (m_pProfile->m_pTransform) { |
| int nMaxColors = 1; |
| for (int i = 0; i < m_nComponents; i ++) { |
| nMaxColors *= 52; |
| } |
| if (m_nComponents > 3 || image_width * image_height < nMaxColors * 3 / 2) { |
| CPDF_ModuleMgr::Get()->GetIccModule()->TranslateScanline(m_pProfile->m_pTransform, pDestBuf, pSrcBuf, pixels); |
| } else { |
| if (m_pCache == NULL) { |
| ((CPDF_ICCBasedCS*)this)->m_pCache = FX_Alloc(FX_BYTE, nMaxColors * 3); |
| FX_LPBYTE temp_src = FX_Alloc(FX_BYTE, nMaxColors * m_nComponents); |
| FX_LPBYTE pSrc = temp_src; |
| for (int i = 0; i < nMaxColors; i ++) { |
| FX_DWORD color = i; |
| FX_DWORD order = nMaxColors / 52; |
| for (int c = 0; c < m_nComponents; c ++) { |
| *pSrc++ = (FX_BYTE)(color / order * 5); |
| color %= order; |
| order /= 52; |
| } |
| } |
| CPDF_ModuleMgr::Get()->GetIccModule()->TranslateScanline(m_pProfile->m_pTransform, m_pCache, temp_src, nMaxColors); |
| FX_Free(temp_src); |
| } |
| for (int i = 0; i < pixels; i ++) { |
| int index = 0; |
| for (int c = 0; c < m_nComponents; c ++) { |
| index = index * 52 + (*pSrcBuf) / 5; |
| pSrcBuf ++; |
| } |
| index *= 3; |
| *pDestBuf++ = m_pCache[index]; |
| *pDestBuf++ = m_pCache[index + 1]; |
| *pDestBuf++ = m_pCache[index + 2]; |
| } |
| } |
| } else if (m_pAlterCS) { |
| m_pAlterCS->TranslateImageLine(pDestBuf, pSrcBuf, pixels, image_width, image_height); |
| } |
| } |
| class CPDF_IndexedCS : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_IndexedCS(); |
| virtual ~CPDF_IndexedCS(); |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| void GetDefaultValue(int iComponent, FX_FLOAT& min, FX_FLOAT& max) const |
| { |
| min = 0; |
| max = (FX_FLOAT)m_MaxIndex; |
| } |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| virtual CPDF_ColorSpace* GetBaseCS() const |
| { |
| return m_pBaseCS; |
| } |
| virtual void EnableStdConversion(FX_BOOL bEnabled); |
| CPDF_ColorSpace* m_pBaseCS; |
| int m_nBaseComponents; |
| int m_MaxIndex; |
| CFX_ByteString m_Table; |
| FX_FLOAT* m_pCompMinMax; |
| }; |
| CPDF_IndexedCS::CPDF_IndexedCS() |
| { |
| m_pBaseCS = NULL; |
| m_Family = PDFCS_INDEXED; |
| m_nComponents = 1; |
| m_pCompMinMax = NULL; |
| } |
| CPDF_IndexedCS::~CPDF_IndexedCS() |
| { |
| if (m_pCompMinMax) { |
| FX_Free(m_pCompMinMax); |
| } |
| } |
| FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| if (pArray->GetCount() < 4) { |
| return FALSE; |
| } |
| CPDF_Object* pBaseObj = pArray->GetElementValue(1); |
| if (pBaseObj == m_pArray) { |
| return FALSE; |
| } |
| CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); |
| m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, NULL); |
| if (m_pBaseCS == NULL) { |
| return FALSE; |
| } |
| m_nBaseComponents = m_pBaseCS->CountComponents(); |
| m_pCompMinMax = FX_Alloc(FX_FLOAT, m_nBaseComponents * 2); |
| FX_FLOAT defvalue; |
| for (int i = 0; i < m_nBaseComponents; i ++) { |
| m_pBaseCS->GetDefaultValue(i, defvalue, m_pCompMinMax[i * 2], m_pCompMinMax[i * 2 + 1]); |
| m_pCompMinMax[i * 2 + 1] -= m_pCompMinMax[i * 2]; |
| } |
| m_MaxIndex = pArray->GetInteger(2); |
| CPDF_Object* pTableObj = pArray->GetElementValue(3); |
| if (pTableObj == NULL) { |
| return FALSE; |
| } |
| if (pTableObj->GetType() == PDFOBJ_STRING) { |
| m_Table = ((CPDF_String*)pTableObj)->GetString(); |
| } else if (pTableObj->GetType() == PDFOBJ_STREAM) { |
| CPDF_StreamAcc acc; |
| acc.LoadAllData((CPDF_Stream*)pTableObj, FALSE); |
| m_Table = CFX_ByteStringC(acc.GetData(), acc.GetSize()); |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_IndexedCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| int index = (FX_INT32)(*pBuf); |
| if (index < 0 || index > m_MaxIndex) { |
| return FALSE; |
| } |
| if (m_nBaseComponents) { |
| if (index == INT_MAX || (index + 1) > INT_MAX / m_nBaseComponents || |
| (index + 1)*m_nBaseComponents > (int)m_Table.GetLength()) { |
| R = G = B = 0; |
| return FALSE; |
| } |
| } |
| CFX_FixedBufGrow<FX_FLOAT, 16> Comps(m_nBaseComponents); |
| FX_FLOAT* comps = Comps; |
| FX_LPCBYTE pTable = m_Table; |
| for (int i = 0; i < m_nBaseComponents; i ++) { |
| comps[i] = m_pCompMinMax[i * 2] + m_pCompMinMax[i * 2 + 1] * pTable[index * m_nBaseComponents + i] / 255; |
| } |
| m_pBaseCS->GetRGB(comps, R, G, B); |
| return TRUE; |
| } |
| void CPDF_IndexedCS::EnableStdConversion(FX_BOOL bEnabled) |
| { |
| CPDF_ColorSpace::EnableStdConversion(bEnabled); |
| if (m_pBaseCS) { |
| m_pBaseCS->EnableStdConversion(bEnabled); |
| } |
| } |
| #define MAX_PATTERN_COLORCOMPS 16 |
| typedef struct _PatternValue { |
| CPDF_Pattern* m_pPattern; |
| int m_nComps; |
| FX_FLOAT m_Comps[MAX_PATTERN_COLORCOMPS]; |
| } PatternValue; |
| CPDF_PatternCS::CPDF_PatternCS() |
| { |
| m_Family = PDFCS_PATTERN; |
| m_pBaseCS = NULL; |
| m_nComponents = 1; |
| } |
| CPDF_PatternCS::~CPDF_PatternCS() |
| { |
| } |
| FX_BOOL CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Object* pBaseCS = pArray->GetElementValue(1); |
| if (pBaseCS == m_pArray) { |
| return FALSE; |
| } |
| CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); |
| m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, NULL); |
| if (m_pBaseCS) { |
| m_nComponents = m_pBaseCS->CountComponents() + 1; |
| if (m_pBaseCS->CountComponents() > MAX_PATTERN_COLORCOMPS) { |
| return FALSE; |
| } |
| } else { |
| m_nComponents = 1; |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_PatternCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| if (m_pBaseCS) { |
| PatternValue* pvalue = (PatternValue*)pBuf; |
| m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B); |
| return TRUE; |
| } |
| R = G = B = 0.75f; |
| return FALSE; |
| } |
| class CPDF_SeparationCS : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_SeparationCS(); |
| virtual ~CPDF_SeparationCS(); |
| virtual void GetDefaultValue(int iComponent, FX_FLOAT& value, FX_FLOAT& min, FX_FLOAT& max) const |
| { |
| value = 1.0f; |
| min = 0; |
| max = 1.0f; |
| } |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| virtual void EnableStdConversion(FX_BOOL bEnabled); |
| CPDF_ColorSpace* m_pAltCS; |
| CPDF_Function* m_pFunc; |
| enum {None, All, Colorant} m_Type; |
| }; |
| CPDF_SeparationCS::CPDF_SeparationCS() |
| { |
| m_Family = PDFCS_SEPARATION; |
| m_pAltCS = NULL; |
| m_pFunc = NULL; |
| m_nComponents = 1; |
| } |
| CPDF_SeparationCS::~CPDF_SeparationCS() |
| { |
| if (m_pAltCS) { |
| m_pAltCS->ReleaseCS(); |
| } |
| if (m_pFunc) { |
| delete m_pFunc; |
| } |
| } |
| FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CFX_ByteString name = pArray->GetString(1); |
| if (name == FX_BSTRC("None")) { |
| m_Type = None; |
| } else { |
| m_Type = Colorant; |
| CPDF_Object* pAltCS = pArray->GetElementValue(2); |
| if (pAltCS == m_pArray) { |
| return FALSE; |
| } |
| m_pAltCS = Load(pDoc, pAltCS); |
| CPDF_Object* pFuncObj = pArray->GetElementValue(3); |
| if (pFuncObj && pFuncObj->GetType() != PDFOBJ_NAME) { |
| m_pFunc = CPDF_Function::Load(pFuncObj); |
| } |
| if (m_pFunc && m_pAltCS && m_pFunc->CountOutputs() < m_pAltCS->CountComponents()) { |
| delete m_pFunc; |
| m_pFunc = NULL; |
| } |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_SeparationCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| if (m_Type == None) { |
| return FALSE; |
| } |
| if (m_pFunc == NULL) { |
| if (m_pAltCS == NULL) { |
| return FALSE; |
| } |
| int nComps = m_pAltCS->CountComponents(); |
| CFX_FixedBufGrow<FX_FLOAT, 16> results(nComps); |
| for (int i = 0; i < nComps; i ++) { |
| results[i] = *pBuf; |
| } |
| m_pAltCS->GetRGB(results, R, G, B); |
| return TRUE; |
| } |
| CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs()); |
| int nresults = 0; |
| m_pFunc->Call(pBuf, 1, results, nresults); |
| if (nresults == 0) { |
| return FALSE; |
| } |
| if (m_pAltCS) { |
| m_pAltCS->GetRGB(results, R, G, B); |
| return TRUE; |
| } else { |
| R = G = B = 0; |
| return FALSE; |
| } |
| } |
| void CPDF_SeparationCS::EnableStdConversion(FX_BOOL bEnabled) |
| { |
| CPDF_ColorSpace::EnableStdConversion(bEnabled); |
| if (m_pAltCS) { |
| m_pAltCS->EnableStdConversion(bEnabled); |
| } |
| } |
| class CPDF_DeviceNCS : public CPDF_ColorSpace |
| { |
| public: |
| CPDF_DeviceNCS(); |
| virtual ~CPDF_DeviceNCS(); |
| virtual void GetDefaultValue(int iComponent, FX_FLOAT& value, FX_FLOAT& min, FX_FLOAT& max) const |
| { |
| value = 1.0f; |
| min = 0; |
| max = 1.0f; |
| } |
| virtual FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray); |
| virtual FX_BOOL GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const; |
| virtual void EnableStdConversion(FX_BOOL bEnabled); |
| CPDF_ColorSpace* m_pAltCS; |
| CPDF_Function* m_pFunc; |
| }; |
| CPDF_DeviceNCS::CPDF_DeviceNCS() |
| { |
| m_Family = PDFCS_DEVICEN; |
| m_pAltCS = NULL; |
| m_pFunc = NULL; |
| } |
| CPDF_DeviceNCS::~CPDF_DeviceNCS() |
| { |
| if (m_pFunc) { |
| delete m_pFunc; |
| } |
| if (m_pAltCS) { |
| m_pAltCS->ReleaseCS(); |
| } |
| } |
| FX_BOOL CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) |
| { |
| CPDF_Object* pObj = pArray->GetElementValue(1); |
| if (!pObj) { |
| return FALSE; |
| } |
| if (pObj->GetType() != PDFOBJ_ARRAY) { |
| return FALSE; |
| } |
| m_nComponents = ((CPDF_Array*)pObj)->GetCount(); |
| CPDF_Object* pAltCS = pArray->GetElementValue(2); |
| if (!pAltCS || pAltCS == m_pArray) { |
| return FALSE; |
| } |
| m_pAltCS = Load(pDoc, pAltCS); |
| m_pFunc = CPDF_Function::Load(pArray->GetElementValue(3)); |
| if (m_pAltCS == NULL || m_pFunc == NULL) { |
| return FALSE; |
| } |
| if (m_pFunc->CountOutputs() < m_pAltCS->CountComponents()) { |
| return FALSE; |
| } |
| return TRUE; |
| } |
| FX_BOOL CPDF_DeviceNCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const |
| { |
| if (m_pFunc == NULL) { |
| return FALSE; |
| } |
| CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs()); |
| int nresults = 0; |
| m_pFunc->Call(pBuf, m_nComponents, results, nresults); |
| if (nresults == 0) { |
| return FALSE; |
| } |
| m_pAltCS->GetRGB(results, R, G, B); |
| return TRUE; |
| } |
| void CPDF_DeviceNCS::EnableStdConversion(FX_BOOL bEnabled) |
| { |
| CPDF_ColorSpace::EnableStdConversion(bEnabled); |
| if (m_pAltCS) { |
| m_pAltCS->EnableStdConversion(bEnabled); |
| } |
| } |
| CPDF_ColorSpace* CPDF_ColorSpace::GetStockCS(int family) |
| { |
| return CPDF_ModuleMgr::Get()->GetPageModule()->GetStockCS(family);; |
| } |
| CPDF_ColorSpace* _CSFromName(const CFX_ByteString& name) |
| { |
| if (name == FX_BSTRC("DeviceRGB") || name == FX_BSTRC("RGB")) { |
| return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB); |
| } |
| if (name == FX_BSTRC("DeviceGray") || name == FX_BSTRC("G")) { |
| return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY); |
| } |
| if (name == FX_BSTRC("DeviceCMYK") || name == FX_BSTRC("CMYK")) { |
| return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); |
| } |
| if (name == FX_BSTRC("Pattern")) { |
| return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN); |
| } |
| return NULL; |
| } |
| CPDF_ColorSpace* CPDF_ColorSpace::Load(CPDF_Document* pDoc, CPDF_Object* pObj) |
| { |
| if (pObj == NULL) { |
| return NULL; |
| } |
| if (pObj->GetType() == PDFOBJ_NAME) { |
| return _CSFromName(pObj->GetString()); |
| } |
| if (pObj->GetType() == PDFOBJ_STREAM) { |
| CPDF_Dictionary *pDict = ((CPDF_Stream *)pObj)->GetDict(); |
| if (!pDict) { |
| return NULL; |
| } |
| CPDF_ColorSpace *pRet = NULL; |
| FX_POSITION pos = pDict->GetStartPos(); |
| while (pos) { |
| CFX_ByteString bsKey; |
| CPDF_Object *pValue = pDict->GetNextElement(pos, bsKey); |
| if (pValue && pValue->GetType() == PDFOBJ_NAME) { |
| pRet = _CSFromName(pValue->GetString()); |
| } |
| if (pRet) { |
| return pRet; |
| } |
| } |
| return NULL; |
| } |
| if (pObj->GetType() != PDFOBJ_ARRAY) { |
| return NULL; |
| } |
| CPDF_Array* pArray = (CPDF_Array*)pObj; |
| if (pArray->GetCount() == 0) { |
| return NULL; |
| } |
| CFX_ByteString familyname = pArray->GetElementValue(0)->GetString(); |
| if (pArray->GetCount() == 1) { |
| return _CSFromName(familyname); |
| } |
| CPDF_ColorSpace* pCS = NULL; |
| FX_DWORD id = familyname.GetID(); |
| if (id == FXBSTR_ID('C', 'a', 'l', 'G')) { |
| pCS = FX_NEW CPDF_CalGray(); |
| } else if (id == FXBSTR_ID('C', 'a', 'l', 'R')) { |
| pCS = FX_NEW CPDF_CalRGB(); |
| } else if (id == FXBSTR_ID('L', 'a', 'b', 0)) { |
| pCS = FX_NEW CPDF_LabCS(); |
| } else if (id == FXBSTR_ID('I', 'C', 'C', 'B')) { |
| pCS = FX_NEW CPDF_ICCBasedCS(); |
| } else if (id == FXBSTR_ID('I', 'n', 'd', 'e') || id == FXBSTR_ID('I', 0, 0, 0)) { |
| pCS = FX_NEW CPDF_IndexedCS(); |
| } else if (id == FXBSTR_ID('S', 'e', 'p', 'a')) { |
| pCS = FX_NEW CPDF_SeparationCS(); |
| } else if (id == FXBSTR_ID('D', 'e', 'v', 'i')) { |
| pCS = FX_NEW CPDF_DeviceNCS(); |
| } else if (id == FXBSTR_ID('P', 'a', 't', 't')) { |
| pCS = FX_NEW CPDF_PatternCS(); |
| } else { |
| return NULL; |
| } |
| pCS->m_pDocument = pDoc; |
| pCS->m_pArray = pArray; |
| if (!pCS->v_Load(pDoc, pArray)) { |
| pCS->ReleaseCS(); |
| return NULL; |
| } |
| return pCS; |
| } |
| CPDF_ColorSpace::CPDF_ColorSpace() |
| { |
| m_Family = 0; |
| m_pArray = NULL; |
| m_dwStdConversion = 0; |
| m_pDocument = NULL; |
| } |
| void CPDF_ColorSpace::ReleaseCS() |
| { |
| if (this == GetStockCS(PDFCS_DEVICERGB)) { |
| return; |
| } |
| if (this == GetStockCS(PDFCS_DEVICEGRAY)) { |
| return; |
| } |
| if (this == GetStockCS(PDFCS_DEVICECMYK)) { |
| return; |
| } |
| if (this == GetStockCS(PDFCS_PATTERN)) { |
| return; |
| } |
| delete this; |
| } |
| int CPDF_ColorSpace::GetBufSize() const |
| { |
| if (m_Family == PDFCS_PATTERN) { |
| return sizeof(PatternValue); |
| } |
| return m_nComponents * sizeof(FX_FLOAT); |
| } |
| FX_FLOAT* CPDF_ColorSpace::CreateBuf() |
| { |
| int size = GetBufSize(); |
| FX_BYTE* pBuf = FX_Alloc(FX_BYTE, size); |
| return (FX_FLOAT*)pBuf; |
| } |
| FX_BOOL CPDF_ColorSpace::sRGB() const |
| { |
| if (m_Family == PDFCS_DEVICERGB) { |
| return TRUE; |
| } |
| if (m_Family != PDFCS_ICCBASED) { |
| return FALSE; |
| } |
| CPDF_ICCBasedCS* pCS = (CPDF_ICCBasedCS*)this; |
| return pCS->m_pProfile->m_bsRGB; |
| } |
| FX_BOOL CPDF_ColorSpace::GetCMYK(FX_FLOAT* pBuf, FX_FLOAT& c, FX_FLOAT& m, FX_FLOAT& y, FX_FLOAT& k) const |
| { |
| if (v_GetCMYK(pBuf, c, m, y, k)) { |
| return TRUE; |
| } |
| FX_FLOAT R, G, B; |
| if (!GetRGB(pBuf, R, G, B)) { |
| return FALSE; |
| } |
| sRGB_to_AdobeCMYK(R, G, B, c, m, y, k); |
| return TRUE; |
| } |
| 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); |
| } |
| void CPDF_ColorSpace::GetDefaultColor(FX_FLOAT* buf) const |
| { |
| if (buf == NULL || m_Family == PDFCS_PATTERN) { |
| return; |
| } |
| FX_FLOAT min, max; |
| for (int i = 0; i < m_nComponents; i ++) { |
| GetDefaultValue(i, buf[i], min, max); |
| } |
| } |
| int CPDF_ColorSpace::GetMaxIndex() const |
| { |
| if (m_Family != PDFCS_INDEXED) { |
| return 0; |
| } |
| CPDF_IndexedCS* pCS = (CPDF_IndexedCS*)this; |
| return pCS->m_MaxIndex; |
| } |
| void CPDF_ColorSpace::TranslateImageLine(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const |
| { |
| CFX_FixedBufGrow<FX_FLOAT, 16> srcbuf(m_nComponents); |
| FX_FLOAT* src = srcbuf; |
| FX_FLOAT R, G, B; |
| for (int i = 0; i < pixels; i ++) { |
| for (int j = 0; j < m_nComponents; j ++) |
| if (m_Family == PDFCS_INDEXED) { |
| src[j] = (FX_FLOAT)(*src_buf ++); |
| } else { |
| src[j] = (FX_FLOAT)(*src_buf ++) / 255; |
| } |
| GetRGB(src, R, G, B); |
| *dest_buf ++ = (FX_INT32)(B * 255); |
| *dest_buf ++ = (FX_INT32)(G * 255); |
| *dest_buf ++ = (FX_INT32)(R * 255); |
| } |
| } |
| void CPDF_ColorSpace::EnableStdConversion(FX_BOOL bEnabled) |
| { |
| if (bEnabled) { |
| m_dwStdConversion ++; |
| } else if (m_dwStdConversion) { |
| m_dwStdConversion --; |
| } |
| } |
| CPDF_Color::CPDF_Color(int family) |
| { |
| m_pCS = CPDF_ColorSpace::GetStockCS(family); |
| int nComps = 3; |
| if (family == PDFCS_DEVICEGRAY) { |
| nComps = 1; |
| } else if (family == PDFCS_DEVICECMYK) { |
| nComps = 4; |
| } |
| m_pBuffer = FX_Alloc(FX_FLOAT, nComps); |
| for (int i = 0; i < nComps; i ++) { |
| m_pBuffer[i] = 0; |
| } |
| } |
| CPDF_Color::~CPDF_Color() |
| { |
| ReleaseBuffer(); |
| ReleaseColorSpace(); |
| } |
| void CPDF_Color::ReleaseBuffer() |
| { |
| if (!m_pBuffer) { |
| return; |
| } |
| if (m_pCS->GetFamily() == PDFCS_PATTERN) { |
| PatternValue* pvalue = (PatternValue*)m_pBuffer; |
| CPDF_Pattern* pPattern = pvalue->m_pPattern; |
| if (pPattern && pPattern->m_pDocument) { |
| pPattern->SaveColor(NULL); |
| pPattern->m_pDocument->GetPageData()->ReleasePattern(pPattern->m_pPatternObj); |
| } |
| } |
| FX_Free(m_pBuffer); |
| m_pBuffer = NULL; |
| } |
| void CPDF_Color::ReleaseColorSpace() |
| { |
| if (m_pCS && m_pCS->m_pDocument && m_pCS->GetArray()) { |
| m_pCS->m_pDocument->GetPageData()->ReleaseColorSpace(m_pCS->GetArray()); |
| m_pCS = NULL; |
| } |
| } |
| void CPDF_Color::SetColorSpace(CPDF_ColorSpace* pCS) |
| { |
| if (m_pCS == pCS) { |
| if (m_pBuffer == NULL) { |
| m_pBuffer = pCS->CreateBuf(); |
| } |
| ReleaseColorSpace(); |
| m_pCS = pCS; |
| return; |
| } |
| ReleaseBuffer(); |
| ReleaseColorSpace(); |
| m_pCS = pCS; |
| if (m_pCS) { |
| m_pBuffer = pCS->CreateBuf(); |
| pCS->GetDefaultColor(m_pBuffer); |
| } |
| } |
| void CPDF_Color::SetValue(FX_FLOAT* comps) |
| { |
| if (m_pBuffer == NULL) { |
| return; |
| } |
| if (m_pCS->GetFamily() != PDFCS_PATTERN) { |
| FXSYS_memcpy32(m_pBuffer, comps, m_pCS->CountComponents() * sizeof(FX_FLOAT)); |
| } |
| } |
| void CPDF_Color::SetValue(CPDF_Pattern* pPattern, FX_FLOAT* comps, int ncomps) |
| { |
| if (ncomps > MAX_PATTERN_COLORCOMPS) { |
| return; |
| } |
| if (m_pCS == NULL || m_pCS->GetFamily() != PDFCS_PATTERN) { |
| if (m_pBuffer) { |
| FX_Free(m_pBuffer); |
| } |
| m_pCS = CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN); |
| m_pBuffer = m_pCS->CreateBuf(); |
| } |
| CPDF_DocPageData* pDocPageData = NULL; |
| PatternValue* pvalue = (PatternValue*)m_pBuffer; |
| if (pvalue->m_pPattern && pvalue->m_pPattern->m_pDocument) { |
| pDocPageData = pvalue->m_pPattern->m_pDocument->GetPageData(); |
| pvalue->m_pPattern->SaveColor(NULL); |
| pDocPageData->ReleasePattern(pvalue->m_pPattern->m_pPatternObj); |
| } |
| pvalue->m_nComps = ncomps; |
| pvalue->m_pPattern = pPattern; |
| if (pPattern) { |
| pPattern->SaveColor(this); |
| } |
| if (ncomps) { |
| FXSYS_memcpy32(pvalue->m_Comps, comps, ncomps * sizeof(FX_FLOAT)); |
| } |
| } |
| void CPDF_Color::Copy(const CPDF_Color* pSrc) |
| { |
| ReleaseBuffer(); |
| ReleaseColorSpace(); |
| m_pCS = pSrc->m_pCS; |
| if (m_pCS && m_pCS->m_pDocument) { |
| CPDF_Array* pArray = m_pCS->GetArray(); |
| if (pArray) { |
| m_pCS = m_pCS->m_pDocument->GetPageData()->GetCopiedColorSpace(pArray); |
| } |
| } |
| if (m_pCS == NULL) { |
| return; |
| } |
| m_pBuffer = m_pCS->CreateBuf(); |
| FXSYS_memcpy32(m_pBuffer, pSrc->m_pBuffer, m_pCS->GetBufSize()); |
| if (m_pCS->GetFamily() == PDFCS_PATTERN) { |
| PatternValue* pvalue = (PatternValue*)m_pBuffer; |
| if (pvalue->m_pPattern && pvalue->m_pPattern->m_pDocument) { |
| pvalue->m_pPattern = pvalue->m_pPattern->m_pDocument->GetPageData()->GetPattern(pvalue->m_pPattern->m_pPatternObj, FALSE, &pvalue->m_pPattern->m_ParentMatrix); |
| } |
| } |
| } |
| FX_BOOL CPDF_Color::GetRGB(int& R, int& G, int& B) const |
| { |
| if (m_pCS == NULL || m_pBuffer == NULL) { |
| return FALSE; |
| } |
| FX_FLOAT r=0.0f, g=0.0f, b=0.0f; |
| if (!m_pCS->GetRGB(m_pBuffer, r, g, b)) { |
| return FALSE; |
| } |
| R = (FX_INT32)(r * 255 + 0.5f); |
| G = (FX_INT32)(g * 255 + 0.5f); |
| B = (FX_INT32)(b * 255 + 0.5f); |
| return TRUE; |
| } |
| CPDF_Pattern* CPDF_Color::GetPattern() const |
| { |
| if (m_pBuffer == NULL || m_pCS->GetFamily() != PDFCS_PATTERN) { |
| return NULL; |
| } |
| PatternValue* pvalue = (PatternValue*)m_pBuffer; |
| return pvalue->m_pPattern; |
| } |
| CPDF_ColorSpace* CPDF_Color::GetPatternCS() const |
| { |
| if (m_pBuffer == NULL || m_pCS->GetFamily() != PDFCS_PATTERN) { |
| return NULL; |
| } |
| return m_pCS->GetBaseCS(); |
| } |
| FX_FLOAT* CPDF_Color::GetPatternColor() const |
| { |
| if (m_pBuffer == NULL || m_pCS->GetFamily() != PDFCS_PATTERN) { |
| return NULL; |
| } |
| PatternValue* pvalue = (PatternValue*)m_pBuffer; |
| return pvalue->m_nComps ? pvalue->m_Comps : NULL; |
| } |
| FX_BOOL CPDF_Color::IsEqual(const CPDF_Color& other) const |
| { |
| if (m_pCS != other.m_pCS || m_pCS == NULL) { |
| return FALSE; |
| } |
| return FXSYS_memcmp32(m_pBuffer, other.m_pBuffer, m_pCS->GetBufSize()) == 0; |
| } |
