diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp | 1401 |
1 files changed, 1401 insertions, 0 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp new file mode 100644 index 0000000000..44b4fc0b1d --- /dev/null +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp @@ -0,0 +1,1401 @@ +// 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 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;
+ if (R1 > 1) {
+ R1 = 1;
+ }
+ if (R1 < 0) {
+ R1 = 0;
+ }
+ if (G1 > 1) {
+ G1 = 1;
+ }
+ if (G1 < 0) {
+ G1 = 0;
+ }
+ if (B1 > 1) {
+ B1 = 1;
+ }
+ if (B1 < 0) {
+ B1 = 0;
+ }
+ int scale = (int)(R1 * 1023);
+ if (scale < 0) {
+ scale = 0;
+ }
+ if (scale < 192) {
+ R = (g_sRGBSamples1[scale] / 255.0f);
+ } else {
+ R = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
+ }
+ scale = (int)(G1 * 1023);
+ if (scale < 0) {
+ scale = 0;
+ }
+ if (scale < 192) {
+ G = (g_sRGBSamples1[scale] / 255.0f);
+ } else {
+ G = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
+ }
+ scale = (int)(B1 * 1023);
+ if (scale < 0) {
+ scale = 0;
+ }
+ if (scale < 192) {
+ B = (g_sRGBSamples1[scale] / 255.0f);
+ } else {
+ B = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
+ }
+}
+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->GetNumber(i);
+ }
+ 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->GetNumber(i);
+ }
+ 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(X, Y, Z, R, G, B);
+ 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->GetNumber(i);
+ }
+ 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;
+ }
+ m_nComponents = pStream->GetDict()->GetInteger(FX_BSTRC("N"));
+ if (m_nComponents < 0 || m_nComponents > (1 << 16)) {
+ return FALSE;
+ }
+ CPDF_Array* pRanges = pStream->GetDict()->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 = pStream->GetDict()->GetElementValue(FX_BSTRC("Alternate"));
+ 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->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);
+ }
+ CPDF_ColorSpace* pCS = m_pBaseCS;
+ if (pCS && m_pDocument) {
+ m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
+ }
+}
+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;
+ }
+ FX_LPCBYTE pTable = NULL;
+ FX_DWORD size = 0;
+ CPDF_StreamAcc* pStreamAcc = NULL;
+ 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()
+{
+ CPDF_ColorSpace* pCS = m_pBaseCS;
+ if (pCS && m_pDocument) {
+ m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
+ }
+}
+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;
+ 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;
+ 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->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);
+ FXSYS_memset32(pBuf, 0, 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->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();
+ pDocPageData->ReleasePattern(pvalue->m_pPattern->m_pPatternObj);
+ }
+ pvalue->m_nComps = ncomps;
+ pvalue->m_pPattern = pPattern;
+ 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, g, b;
+ 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;
+}
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