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Unified Diff: core/fpdfapi/fpdf_page/cpdf_colorspace.cpp

Issue 1824033002: Split core/include/fpdfapi/fpdf_resource.h (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp b/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
similarity index 71%
copy from core/fpdfapi/fpdf_page/fpdf_page_colors.cpp
copy to core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
index d4b69f2d3fe0b863cf5d53c6cdd6eb39cfc5f4c8..b1b464471d3fb82d58023284981280e2bec64830 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
@@ -1,218 +1,24 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
+// Copyright 2016 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 "core/fpdfapi/fpdf_page/pageint.h"
-
-#include <limits.h>
-
-#include <algorithm>
+#include "core/fpdfapi/fpdf_page/include/cpdf_colorspace.h"
+#include "core/fpdfapi/fpdf_page/pageint.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_object.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_string.h"
#include "core/fpdfapi/include/cpdf_modulemgr.h"
#include "core/include/fxcodec/fx_codec.h"
namespace {
-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;
- }
-}
-
-FX_DWORD ComponentsForFamily(int family) {
- if (family == PDFCS_DEVICERGB)
- return 3;
- if (family == PDFCS_DEVICEGRAY)
- return 1;
- return 4;
-}
-
-void ReverseRGB(uint8_t* pDestBuf, const uint8_t* pSrcBuf, int pixels) {
- if (pDestBuf == pSrcBuf) {
- for (int i = 0; i < pixels; i++) {
- uint8_t 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;
- }
- }
-}
-
-} // namespace
-
-CPDF_DeviceCS::CPDF_DeviceCS(CPDF_Document* pDoc, int family)
- : CPDF_ColorSpace(pDoc, family, ComponentsForFamily(family)) {}
-
-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 - std::min(1.0f, pBuf[0] + k);
- G = 1.0f - std::min(1.0f, pBuf[1] + k);
- B = 1.0f - std::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;
- }
- if (m_Family == PDFCS_DEVICEGRAY) {
- if (R == G && R == B) {
- *pBuf = R;
- return TRUE;
- }
- return FALSE;
- }
- 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;
- }
- if (m_Family == PDFCS_DEVICECMYK) {
- pBuf[0] = c;
- pBuf[1] = m;
- pBuf[2] = y;
- pBuf[3] = k;
- return TRUE;
- }
- return FALSE;
-}
-
-void CPDF_DeviceCS::TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* 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 {
- uint8_t k = pSrcBuf[3];
- pDestBuf[2] = 255 - std::min(255, pSrcBuf[0] + k);
- pDestBuf[1] = 255 - std::min(255, pSrcBuf[1] + k);
- pDestBuf[0] = 255 - std::min(255, pSrcBuf[2] + k);
- }
- pSrcBuf += 4;
- pDestBuf += 3;
- }
- }
-}
const uint8_t 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,
@@ -228,6 +34,7 @@ const uint8_t g_sRGBSamples1[] = {
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 uint8_t 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,
@@ -245,75 +52,12 @@ const uint8_t g_sRGBSamples2[] = {
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:
- explicit CPDF_CalGray(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_CALGRAY, 1) {}
+ explicit CPDF_CalGray(CPDF_Document* pDoc);
+
FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+
FX_BOOL GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -322,6 +66,7 @@ class CPDF_CalGray : public CPDF_ColorSpace {
FX_FLOAT R,
FX_FLOAT G,
FX_FLOAT B) const override;
+
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
@@ -335,60 +80,12 @@ class CPDF_CalGray : public CPDF_ColorSpace {
FX_FLOAT m_Gamma;
};
-FX_BOOL CPDF_CalGray::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
- CPDF_Dictionary* pDict = pArray->GetDictAt(1);
- if (!pDict)
- return FALSE;
-
- CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
- int i;
- for (i = 0; i < 3; i++) {
- m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- pParam = pDict->GetArrayBy("BlackPoint");
- for (i = 0; i < 3; i++) {
- m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- m_Gamma = pDict->GetNumberBy("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;
- }
- return FALSE;
-}
-void CPDF_CalGray::TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* 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:
- explicit CPDF_CalRGB(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_CALRGB, 3) {}
+ explicit CPDF_CalRGB(CPDF_Document* pDoc);
+
FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+
FX_BOOL GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -397,6 +94,7 @@ class CPDF_CalRGB : public CPDF_ColorSpace {
FX_FLOAT R,
FX_FLOAT G,
FX_FLOAT B) const override;
+
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
@@ -411,107 +109,17 @@ class CPDF_CalRGB : public CPDF_ColorSpace {
FX_BOOL m_bGamma;
FX_BOOL m_bMatrix;
};
-FX_BOOL CPDF_CalRGB::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
- CPDF_Dictionary* pDict = pArray->GetDictAt(1);
- if (!pDict)
- return FALSE;
- CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
- int i;
- for (i = 0; i < 3; i++) {
- m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- pParam = pDict->GetArrayBy("BlackPoint");
- for (i = 0; i < 3; i++) {
- m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- pParam = pDict->GetArrayBy("Gamma");
- if (pParam) {
- m_bGamma = TRUE;
- for (i = 0; i < 3; i++) {
- m_Gamma[i] = pParam->GetNumberAt(i);
- }
- } else {
- m_bGamma = FALSE;
- }
- pParam = pDict->GetArrayBy("Matrix");
- if (pParam) {
- m_bMatrix = TRUE;
- for (i = 0; i < 9; i++) {
- m_Matrix[i] = pParam->GetNumberAt(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(uint8_t* pDestBuf,
- const uint8_t* 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:
- explicit CPDF_LabCS(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_LAB, 3) {}
+ explicit CPDF_LabCS(CPDF_Document* pDoc);
+
+ FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+
void GetDefaultValue(int iComponent,
FX_FLOAT& value,
FX_FLOAT& min,
FX_FLOAT& max) const override;
- FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
FX_BOOL GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -520,6 +128,7 @@ class CPDF_LabCS : public CPDF_ColorSpace {
FX_FLOAT R,
FX_FLOAT G,
FX_FLOAT B) const override;
+
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
@@ -531,130 +140,14 @@ class CPDF_LabCS : public CPDF_ColorSpace {
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->GetDictAt(1);
- if (!pDict) {
- return FALSE;
- }
- CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
- int i;
- for (i = 0; i < 3; i++) {
- m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- pParam = pDict->GetArrayBy("BlackPoint");
- for (i = 0; i < 3; i++) {
- m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
- }
- pParam = pDict->GetArrayBy("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->GetNumberAt(i) : def_ranges[i];
- }
- return TRUE;
-}
-void CPDF_LabCS::GetDefaultValue(int iComponent,
- FX_FLOAT& value,
- FX_FLOAT& min,
- FX_FLOAT& max) const {
- assert(iComponent < 3);
- 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(uint8_t* pDestBuf,
- const uint8_t* 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] = (int32_t)(B * 255);
- pDestBuf[1] = (int32_t)(G * 255);
- pDestBuf[2] = (int32_t)(R * 255);
- pDestBuf += 3;
- pSrcBuf += 3;
- }
-}
-CPDF_IccProfile::CPDF_IccProfile(const uint8_t* pData, FX_DWORD dwSize)
- : m_bsRGB(FALSE), m_pTransform(NULL), m_nSrcComponents(0) {
- if (dwSize == 3144 &&
- FXSYS_memcmp(pData + 0x190, "sRGB IEC61966-2.1", 17) == 0) {
- m_bsRGB = TRUE;
- m_nSrcComponents = 3;
- } else if (CPDF_ModuleMgr::Get()->GetIccModule()) {
- m_pTransform = CPDF_ModuleMgr::Get()->GetIccModule()->CreateTransform_sRGB(
- pData, dwSize, m_nSrcComponents);
- }
-}
-CPDF_IccProfile::~CPDF_IccProfile() {
- if (m_pTransform) {
- CPDF_ModuleMgr::Get()->GetIccModule()->DestroyTransform(m_pTransform);
- }
-}
+
class CPDF_ICCBasedCS : public CPDF_ColorSpace {
public:
- explicit CPDF_ICCBasedCS(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_ICCBASED, 0),
- m_pAlterCS(nullptr),
- m_pProfile(nullptr),
- m_pCache(nullptr),
- m_pRanges(nullptr),
- m_bOwn(FALSE) {}
+ explicit CPDF_ICCBasedCS(CPDF_Document* pDoc);
~CPDF_ICCBasedCS() override;
FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+
FX_BOOL GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -663,11 +156,13 @@ class CPDF_ICCBasedCS : public CPDF_ColorSpace {
FX_FLOAT R,
FX_FLOAT G,
FX_FLOAT B) const override;
+
FX_BOOL v_GetCMYK(FX_FLOAT* pBuf,
FX_FLOAT& c,
FX_FLOAT& m,
FX_FLOAT& y,
FX_FLOAT& k) const override;
+
void EnableStdConversion(FX_BOOL bEnabled) override;
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
@@ -683,41 +178,639 @@ class CPDF_ICCBasedCS : public CPDF_ColorSpace {
FX_BOOL m_bOwn;
};
-CPDF_ICCBasedCS::~CPDF_ICCBasedCS() {
- FX_Free(m_pCache);
- FX_Free(m_pRanges);
- if (m_pAlterCS && m_bOwn) {
- m_pAlterCS->ReleaseCS();
- }
- if (m_pProfile && m_pDocument) {
- m_pDocument->GetPageData()->ReleaseIccProfile(m_pProfile);
- }
+class CPDF_IndexedCS : public CPDF_ColorSpace {
+ public:
+ explicit CPDF_IndexedCS(CPDF_Document* pDoc);
+ ~CPDF_IndexedCS() override;
+
+ FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+
+ FX_BOOL GetRGB(FX_FLOAT* pBuf,
+ FX_FLOAT& R,
+ FX_FLOAT& G,
+ FX_FLOAT& B) const override;
+ CPDF_ColorSpace* GetBaseCS() const override;
+
+ void EnableStdConversion(FX_BOOL bEnabled) override;
+
+ CPDF_ColorSpace* m_pBaseCS;
+ CPDF_CountedColorSpace* m_pCountedBaseCS;
+ int m_nBaseComponents;
+ int m_MaxIndex;
+ CFX_ByteString m_Table;
+ FX_FLOAT* m_pCompMinMax;
+};
+
+class CPDF_SeparationCS : public CPDF_ColorSpace {
+ public:
+ explicit CPDF_SeparationCS(CPDF_Document* pDoc);
+ ~CPDF_SeparationCS() override;
+
+ // CPDF_ColorSpace:
+ void GetDefaultValue(int iComponent,
+ FX_FLOAT& value,
+ FX_FLOAT& min,
+ FX_FLOAT& max) const override;
+ FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ FX_BOOL GetRGB(FX_FLOAT* pBuf,
+ FX_FLOAT& R,
+ FX_FLOAT& G,
+ FX_FLOAT& B) const override;
+ void EnableStdConversion(FX_BOOL bEnabled) override;
+
+ CPDF_ColorSpace* m_pAltCS;
+ CPDF_Function* m_pFunc;
+ enum { None, All, Colorant } m_Type;
+};
+
+class CPDF_DeviceNCS : public CPDF_ColorSpace {
+ public:
+ explicit CPDF_DeviceNCS(CPDF_Document* pDoc);
+ ~CPDF_DeviceNCS() override;
+
+ // CPDF_ColorSpace:
+ void GetDefaultValue(int iComponent,
+ FX_FLOAT& value,
+ FX_FLOAT& min,
+ FX_FLOAT& max) const override;
+ FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ FX_BOOL GetRGB(FX_FLOAT* pBuf,
+ FX_FLOAT& R,
+ FX_FLOAT& G,
+ FX_FLOAT& B) const override;
+ void EnableStdConversion(FX_BOOL bEnabled) override;
+
+ CPDF_ColorSpace* m_pAltCS;
+ CPDF_Function* m_pFunc;
+};
+
+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;
}
-FX_BOOL CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
- CPDF_Stream* pStream = pArray->GetStreamAt(1);
- if (!pStream) {
- return FALSE;
+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);
+}
+
+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);
+}
+
+} // namespace
+
+CPDF_ColorSpace* CPDF_ColorSpace::ColorspaceFromName(
+ const CFX_ByteString& name) {
+ if (name == "DeviceRGB" || name == "RGB") {
+ return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
}
- m_pProfile = pDoc->LoadIccProfile(pStream);
- if (!m_pProfile) {
- return FALSE;
+ if (name == "DeviceGray" || name == "G") {
+ return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
}
- m_nComponents =
- m_pProfile
- ->GetComponents(); // Try using the nComponents from ICC profile
- CPDF_Dictionary* pDict = pStream->GetDict();
- if (!m_pProfile->m_pTransform) { // No valid ICC profile or using sRGB
- CPDF_Object* pAlterCSObj =
- pDict ? pDict->GetElementValue("Alternate") : NULL;
- if (pAlterCSObj) {
- CPDF_ColorSpace* pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj);
- if (pAlterCS) {
- if (m_nComponents == 0) { // NO valid ICC profile
- if (pAlterCS->CountComponents() > 0) { // Use Alternative colorspace
- m_nComponents = pAlterCS->CountComponents();
- m_pAlterCS = pAlterCS;
- m_bOwn = TRUE;
+ if (name == "DeviceCMYK" || name == "CMYK") {
+ return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
+ }
+ if (name == "Pattern") {
+ return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN);
+ }
+ return NULL;
+}
+
+CPDF_ColorSpace* CPDF_ColorSpace::GetStockCS(int family) {
+ return CPDF_ModuleMgr::Get()->GetPageModule()->GetStockCS(family);
+}
+
+CPDF_ColorSpace* CPDF_ColorSpace::Load(CPDF_Document* pDoc, CPDF_Object* pObj) {
+ if (!pObj)
+ return nullptr;
+ if (pObj->IsName())
+ return ColorspaceFromName(pObj->GetString());
+
+ if (CPDF_Stream* pStream = pObj->AsStream()) {
+ CPDF_Dictionary* pDict = pStream->GetDict();
+ if (!pDict)
+ return nullptr;
+
+ for (const auto& it : *pDict) {
+ CPDF_ColorSpace* pRet = nullptr;
+ CPDF_Object* pValue = it.second;
+ if (ToName(pValue))
+ pRet = ColorspaceFromName(pValue->GetString());
+ if (pRet)
+ return pRet;
+ }
+ return nullptr;
+ }
+
+ CPDF_Array* pArray = pObj->AsArray();
+ if (!pArray || pArray->GetCount() == 0)
+ return nullptr;
+
+ CPDF_Object* pFamilyObj = pArray->GetElementValue(0);
+ if (!pFamilyObj)
+ return nullptr;
+
+ CFX_ByteString familyname = pFamilyObj->GetString();
+ if (pArray->GetCount() == 1)
+ return ColorspaceFromName(familyname);
+
+ CPDF_ColorSpace* pCS = NULL;
+ FX_DWORD id = familyname.GetID();
+ if (id == FXBSTR_ID('C', 'a', 'l', 'G')) {
+ pCS = new CPDF_CalGray(pDoc);
+ } else if (id == FXBSTR_ID('C', 'a', 'l', 'R')) {
+ pCS = new CPDF_CalRGB(pDoc);
+ } else if (id == FXBSTR_ID('L', 'a', 'b', 0)) {
+ pCS = new CPDF_LabCS(pDoc);
+ } else if (id == FXBSTR_ID('I', 'C', 'C', 'B')) {
+ pCS = new CPDF_ICCBasedCS(pDoc);
+ } else if (id == FXBSTR_ID('I', 'n', 'd', 'e') ||
+ id == FXBSTR_ID('I', 0, 0, 0)) {
+ pCS = new CPDF_IndexedCS(pDoc);
+ } else if (id == FXBSTR_ID('S', 'e', 'p', 'a')) {
+ pCS = new CPDF_SeparationCS(pDoc);
+ } else if (id == FXBSTR_ID('D', 'e', 'v', 'i')) {
+ pCS = new CPDF_DeviceNCS(pDoc);
+ } else if (id == FXBSTR_ID('P', 'a', 't', 't')) {
+ pCS = new CPDF_PatternCS(pDoc);
+ } else {
+ return NULL;
+ }
+ pCS->m_pArray = pArray;
+ if (!pCS->v_Load(pDoc, pArray)) {
+ pCS->ReleaseCS();
+ return NULL;
+ }
+ return pCS;
+}
+
+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();
+ uint8_t* pBuf = FX_Alloc(uint8_t, 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 || 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(uint8_t* dest_buf,
+ const uint8_t* 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++ = (int32_t)(B * 255);
+ *dest_buf++ = (int32_t)(G * 255);
+ *dest_buf++ = (int32_t)(R * 255);
+ }
+}
+
+void CPDF_ColorSpace::EnableStdConversion(FX_BOOL bEnabled) {
+ if (bEnabled)
+ m_dwStdConversion++;
+ else if (m_dwStdConversion)
+ m_dwStdConversion--;
+}
+
+CPDF_CalGray::CPDF_CalGray(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_CALGRAY, 1) {}
+
+FX_BOOL CPDF_CalGray::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+ CPDF_Dictionary* pDict = pArray->GetDictAt(1);
+ if (!pDict)
+ return FALSE;
+
+ CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
+ int i;
+ for (i = 0; i < 3; i++)
+ m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ pParam = pDict->GetArrayBy("BlackPoint");
+ for (i = 0; i < 3; i++)
+ m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ m_Gamma = pDict->GetNumberBy("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;
+ }
+ return FALSE;
+}
+
+void CPDF_CalGray::TranslateImageLine(uint8_t* pDestBuf,
+ const uint8_t* 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];
+ }
+}
+
+CPDF_CalRGB::CPDF_CalRGB(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_CALRGB, 3) {}
+
+FX_BOOL CPDF_CalRGB::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+ CPDF_Dictionary* pDict = pArray->GetDictAt(1);
+ if (!pDict)
+ return FALSE;
+
+ CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
+ int i;
+ for (i = 0; i < 3; i++)
+ m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ pParam = pDict->GetArrayBy("BlackPoint");
+ for (i = 0; i < 3; i++)
+ m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ pParam = pDict->GetArrayBy("Gamma");
+ if (pParam) {
+ m_bGamma = TRUE;
+ for (i = 0; i < 3; i++)
+ m_Gamma[i] = pParam->GetNumberAt(i);
+ } else {
+ m_bGamma = FALSE;
+ }
+
+ pParam = pDict->GetArrayBy("Matrix");
+ if (pParam) {
+ m_bMatrix = TRUE;
+ for (i = 0; i < 9; i++)
+ m_Matrix[i] = pParam->GetNumberAt(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;
+ FX_FLOAT Y;
+ FX_FLOAT 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(uint8_t* pDestBuf,
+ const uint8_t* pSrcBuf,
+ int pixels,
+ int image_width,
+ int image_height,
+ FX_BOOL bTransMask) const {
+ if (bTransMask) {
+ FX_FLOAT Cal[3];
+ FX_FLOAT R;
+ FX_FLOAT G;
+ FX_FLOAT 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);
+}
+
+CPDF_LabCS::CPDF_LabCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_LAB, 3) {}
+
+void CPDF_LabCS::GetDefaultValue(int iComponent,
+ FX_FLOAT& value,
+ FX_FLOAT& min,
+ FX_FLOAT& max) const {
+ assert(iComponent < 3);
+ 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::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+ CPDF_Dictionary* pDict = pArray->GetDictAt(1);
+ if (!pDict)
+ return FALSE;
+
+ CPDF_Array* pParam = pDict->GetArrayBy("WhitePoint");
+ int i;
+ for (i = 0; i < 3; i++)
+ m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ pParam = pDict->GetArrayBy("BlackPoint");
+ for (i = 0; i < 3; i++)
+ m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0;
+
+ pParam = pDict->GetArrayBy("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->GetNumberAt(i) : def_ranges[i];
+ return TRUE;
+}
+
+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(uint8_t* pDestBuf,
+ const uint8_t* 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] = (int32_t)(B * 255);
+ pDestBuf[1] = (int32_t)(G * 255);
+ pDestBuf[2] = (int32_t)(R * 255);
+ pDestBuf += 3;
+ pSrcBuf += 3;
+ }
+}
+
+CPDF_ICCBasedCS::CPDF_ICCBasedCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_ICCBASED, 0),
+ m_pAlterCS(nullptr),
+ m_pProfile(nullptr),
+ m_pCache(nullptr),
+ m_pRanges(nullptr),
+ m_bOwn(FALSE) {}
+
+CPDF_ICCBasedCS::~CPDF_ICCBasedCS() {
+ FX_Free(m_pCache);
+ FX_Free(m_pRanges);
+ if (m_pAlterCS && m_bOwn)
+ m_pAlterCS->ReleaseCS();
+ if (m_pProfile && m_pDocument)
+ m_pDocument->GetPageData()->ReleaseIccProfile(m_pProfile);
+}
+
+FX_BOOL CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+ CPDF_Stream* pStream = pArray->GetStreamAt(1);
+ if (!pStream)
+ return FALSE;
+
+ m_pProfile = pDoc->LoadIccProfile(pStream);
+ if (!m_pProfile)
+ return FALSE;
+
+ m_nComponents =
+ m_pProfile
+ ->GetComponents(); // Try using the nComponents from ICC profile
+ CPDF_Dictionary* pDict = pStream->GetDict();
+ if (!m_pProfile->m_pTransform) { // No valid ICC profile or using sRGB
+ CPDF_Object* pAlterCSObj =
+ pDict ? pDict->GetElementValue("Alternate") : nullptr;
+ if (pAlterCSObj) {
+ CPDF_ColorSpace* pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj);
+ if (pAlterCS) {
+ if (m_nComponents == 0) { // NO valid ICC profile
+ if (pAlterCS->CountComponents() > 0) { // Use Alternative colorspace
+ m_nComponents = pAlterCS->CountComponents();
+ m_pAlterCS = pAlterCS;
+ m_bOwn = TRUE;
} else { // No valid alternative colorspace
pAlterCS->ReleaseCS();
int32_t nDictComponents = pDict ? pDict->GetIntegerBy("N") : 0;
@@ -739,28 +832,27 @@ FX_BOOL CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
}
if (!m_pAlterCS) {
- if (m_nComponents == 1) {
+ if (m_nComponents == 1)
m_pAlterCS = GetStockCS(PDFCS_DEVICEGRAY);
- } else if (m_nComponents == 3) {
+ else if (m_nComponents == 3)
m_pAlterCS = GetStockCS(PDFCS_DEVICERGB);
- } else if (m_nComponents == 4) {
+ else if (m_nComponents == 4)
m_pAlterCS = GetStockCS(PDFCS_DEVICECMYK);
- }
}
}
CPDF_Array* pRanges = pDict->GetArrayBy("Range");
m_pRanges = FX_Alloc2D(FX_FLOAT, m_nComponents, 2);
for (int i = 0; i < m_nComponents * 2; i++) {
- if (pRanges) {
+ if (pRanges)
m_pRanges[i] = pRanges->GetNumberAt(i);
- } else if (i % 2) {
+ else if (i % 2)
m_pRanges[i] = 1.0f;
- } else {
+ else
m_pRanges[i] = 0;
- }
}
return TRUE;
}
+
FX_BOOL CPDF_ICCBasedCS::GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -787,32 +879,35 @@ FX_BOOL CPDF_ICCBasedCS::GetRGB(FX_FLOAT* pBuf,
B = rgb[2];
return TRUE;
}
+
+FX_BOOL CPDF_ICCBasedCS::SetRGB(FX_FLOAT* pBuf,
+ FX_FLOAT R,
+ FX_FLOAT G,
+ FX_FLOAT B) const {
+ return FALSE;
+}
+
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) {
+ 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) {
+ if (m_pAlterCS)
m_pAlterCS->EnableStdConversion(bEnabled);
- }
}
+
void CPDF_ICCBasedCS::TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
@@ -864,30 +959,13 @@ void CPDF_ICCBasedCS::TranslateImageLine(uint8_t* pDestBuf,
image_height);
}
}
-class CPDF_IndexedCS : public CPDF_ColorSpace {
- public:
- explicit CPDF_IndexedCS(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_INDEXED, 1),
- m_pBaseCS(nullptr),
- m_pCountedBaseCS(nullptr),
- m_pCompMinMax(nullptr) {}
- ~CPDF_IndexedCS() override;
- FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- FX_BOOL GetRGB(FX_FLOAT* pBuf,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B) const override;
- CPDF_ColorSpace* GetBaseCS() const override;
- void EnableStdConversion(FX_BOOL bEnabled) override;
+CPDF_IndexedCS::CPDF_IndexedCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_INDEXED, 1),
+ m_pBaseCS(nullptr),
+ m_pCountedBaseCS(nullptr),
+ m_pCompMinMax(nullptr) {}
- CPDF_ColorSpace* m_pBaseCS;
- CPDF_CountedColorSpace* m_pCountedBaseCS;
- int m_nBaseComponents;
- int m_MaxIndex;
- CFX_ByteString m_Table;
- FX_FLOAT* m_pCompMinMax;
-};
CPDF_IndexedCS::~CPDF_IndexedCS() {
FX_Free(m_pCompMinMax);
CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : NULL;
@@ -895,6 +973,7 @@ CPDF_IndexedCS::~CPDF_IndexedCS() {
m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
}
}
+
FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
if (pArray->GetCount() < 4) {
return FALSE;
@@ -958,9 +1037,11 @@ FX_BOOL CPDF_IndexedCS::GetRGB(FX_FLOAT* pBuf,
}
return m_pBaseCS->GetRGB(comps, R, G, B);
}
+
CPDF_ColorSpace* CPDF_IndexedCS::GetBaseCS() const {
return m_pBaseCS;
}
+
void CPDF_IndexedCS::EnableStdConversion(FX_BOOL bEnabled) {
CPDF_ColorSpace::EnableStdConversion(bEnabled);
if (m_pBaseCS) {
@@ -968,13 +1049,10 @@ void CPDF_IndexedCS::EnableStdConversion(FX_BOOL bEnabled) {
}
}
-#define MAX_PATTERN_COLORCOMPS 16
-struct PatternValue {
- CPDF_Pattern* m_pPattern;
- CPDF_CountedPattern* m_pCountedPattern;
- int m_nComps;
- FX_FLOAT m_Comps[MAX_PATTERN_COLORCOMPS];
-};
+CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_PATTERN, 1),
+ m_pBaseCS(nullptr),
+ m_pCountedBaseCS(nullptr) {}
CPDF_PatternCS::~CPDF_PatternCS() {
CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : NULL;
@@ -982,6 +1060,7 @@ CPDF_PatternCS::~CPDF_PatternCS() {
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) {
@@ -1003,6 +1082,7 @@ FX_BOOL CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
return TRUE;
}
+
FX_BOOL CPDF_PatternCS::GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -1017,39 +1097,23 @@ FX_BOOL CPDF_PatternCS::GetRGB(FX_FLOAT* pBuf,
R = G = B = 0.75f;
return FALSE;
}
+
CPDF_ColorSpace* CPDF_PatternCS::GetBaseCS() const {
return m_pBaseCS;
}
-class CPDF_SeparationCS : public CPDF_ColorSpace {
- public:
- explicit CPDF_SeparationCS(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_SEPARATION, 1),
- m_pAltCS(nullptr),
- m_pFunc(nullptr) {}
- ~CPDF_SeparationCS() override;
- // CPDF_ColorSpace:
- void GetDefaultValue(int iComponent,
- FX_FLOAT& value,
- FX_FLOAT& min,
- FX_FLOAT& max) const override;
- FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- FX_BOOL GetRGB(FX_FLOAT* pBuf,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B) const override;
- void EnableStdConversion(FX_BOOL bEnabled) override;
+CPDF_SeparationCS::CPDF_SeparationCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_SEPARATION, 1),
+ m_pAltCS(nullptr),
+ m_pFunc(nullptr) {}
- CPDF_ColorSpace* m_pAltCS;
- CPDF_Function* m_pFunc;
- enum { None, All, Colorant } m_Type;
-};
CPDF_SeparationCS::~CPDF_SeparationCS() {
if (m_pAltCS) {
m_pAltCS->ReleaseCS();
}
delete m_pFunc;
}
+
void CPDF_SeparationCS::GetDefaultValue(int iComponent,
FX_FLOAT& value,
FX_FLOAT& min,
@@ -1058,6 +1122,7 @@ void CPDF_SeparationCS::GetDefaultValue(int iComponent,
min = 0;
max = 1.0f;
}
+
FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
CFX_ByteString name = pArray->GetStringAt(1);
if (name == "None") {
@@ -1083,6 +1148,7 @@ FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
return TRUE;
}
+
FX_BOOL CPDF_SeparationCS::GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -1113,41 +1179,26 @@ FX_BOOL CPDF_SeparationCS::GetRGB(FX_FLOAT* pBuf,
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:
- explicit CPDF_DeviceNCS(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_DEVICEN, 0),
- m_pAltCS(nullptr),
- m_pFunc(nullptr) {}
- ~CPDF_DeviceNCS() override;
- // CPDF_ColorSpace:
- void GetDefaultValue(int iComponent,
- FX_FLOAT& value,
- FX_FLOAT& min,
- FX_FLOAT& max) const override;
- FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- FX_BOOL GetRGB(FX_FLOAT* pBuf,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B) const override;
- void EnableStdConversion(FX_BOOL bEnabled) override;
+CPDF_DeviceNCS::CPDF_DeviceNCS(CPDF_Document* pDoc)
+ : CPDF_ColorSpace(pDoc, PDFCS_DEVICEN, 0),
+ m_pAltCS(nullptr),
+ m_pFunc(nullptr) {}
- CPDF_ColorSpace* m_pAltCS;
- CPDF_Function* m_pFunc;
-};
CPDF_DeviceNCS::~CPDF_DeviceNCS() {
delete m_pFunc;
if (m_pAltCS) {
m_pAltCS->ReleaseCS();
}
}
+
void CPDF_DeviceNCS::GetDefaultValue(int iComponent,
FX_FLOAT& value,
FX_FLOAT& min,
@@ -1156,6 +1207,7 @@ void CPDF_DeviceNCS::GetDefaultValue(int iComponent,
min = 0;
max = 1.0f;
}
+
FX_BOOL CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
CPDF_Array* pObj = ToArray(pArray->GetElementValue(1));
if (!pObj)
@@ -1176,6 +1228,7 @@ FX_BOOL CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
return TRUE;
}
+
FX_BOOL CPDF_DeviceNCS::GetRGB(FX_FLOAT* pBuf,
FX_FLOAT& R,
FX_FLOAT& G,
@@ -1191,359 +1244,10 @@ FX_BOOL CPDF_DeviceNCS::GetRGB(FX_FLOAT* pBuf,
}
return m_pAltCS->GetRGB(results, R, G, B);
}
+
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 == "DeviceRGB" || name == "RGB") {
- return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB);
- }
- if (name == "DeviceGray" || name == "G") {
- return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY);
- }
- if (name == "DeviceCMYK" || name == "CMYK") {
- return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
- }
- if (name == "Pattern") {
- return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN);
- }
- return NULL;
-}
-CPDF_ColorSpace* CPDF_ColorSpace::Load(CPDF_Document* pDoc, CPDF_Object* pObj) {
- if (!pObj)
- return nullptr;
- if (pObj->IsName())
- return _CSFromName(pObj->GetString());
-
- if (CPDF_Stream* pStream = pObj->AsStream()) {
- CPDF_Dictionary* pDict = pStream->GetDict();
- if (!pDict)
- return nullptr;
-
- for (const auto& it : *pDict) {
- CPDF_ColorSpace* pRet = nullptr;
- CPDF_Object* pValue = it.second;
- if (ToName(pValue))
- pRet = _CSFromName(pValue->GetString());
- if (pRet)
- return pRet;
- }
- return nullptr;
- }
-
- CPDF_Array* pArray = pObj->AsArray();
- if (!pArray || pArray->GetCount() == 0)
- return nullptr;
-
- CPDF_Object* pFamilyObj = pArray->GetElementValue(0);
- if (!pFamilyObj)
- return nullptr;
-
- CFX_ByteString familyname = pFamilyObj->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 = new CPDF_CalGray(pDoc);
- } else if (id == FXBSTR_ID('C', 'a', 'l', 'R')) {
- pCS = new CPDF_CalRGB(pDoc);
- } else if (id == FXBSTR_ID('L', 'a', 'b', 0)) {
- pCS = new CPDF_LabCS(pDoc);
- } else if (id == FXBSTR_ID('I', 'C', 'C', 'B')) {
- pCS = new CPDF_ICCBasedCS(pDoc);
- } else if (id == FXBSTR_ID('I', 'n', 'd', 'e') ||
- id == FXBSTR_ID('I', 0, 0, 0)) {
- pCS = new CPDF_IndexedCS(pDoc);
- } else if (id == FXBSTR_ID('S', 'e', 'p', 'a')) {
- pCS = new CPDF_SeparationCS(pDoc);
- } else if (id == FXBSTR_ID('D', 'e', 'v', 'i')) {
- pCS = new CPDF_DeviceNCS(pDoc);
- } else if (id == FXBSTR_ID('P', 'a', 't', 't')) {
- pCS = new CPDF_PatternCS(pDoc);
- } else {
- return NULL;
- }
- pCS->m_pArray = pArray;
- if (!pCS->v_Load(pDoc, pArray)) {
- pCS->ReleaseCS();
- return NULL;
- }
- return pCS;
-}
-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();
- uint8_t* pBuf = FX_Alloc(uint8_t, 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 || 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(uint8_t* dest_buf,
- const uint8_t* 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++ = (int32_t)(B * 255);
- *dest_buf++ = (int32_t)(G * 255);
- *dest_buf++ = (int32_t)(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_pCountedPattern ? pvalue->m_pCountedPattern->get() : NULL;
- if (pPattern && pPattern->m_pDocument) {
- CPDF_DocPageData* pPageData = pPattern->m_pDocument->GetPageData();
- if (pPageData) {
- pPageData->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) {
- 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) {
- return;
- }
- if (m_pCS->GetFamily() != PDFCS_PATTERN) {
- FXSYS_memcpy(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 || m_pCS->GetFamily() != PDFCS_PATTERN) {
- 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();
- if (pDocPageData) {
- pDocPageData->ReleasePattern(pvalue->m_pPattern->m_pPatternObj);
- }
- }
- pvalue->m_nComps = ncomps;
- pvalue->m_pPattern = pPattern;
- if (ncomps) {
- FXSYS_memcpy(pvalue->m_Comps, comps, ncomps * sizeof(FX_FLOAT));
- }
- pvalue->m_pCountedPattern = NULL;
- if (pPattern && pPattern->m_pDocument) {
- if (!pDocPageData) {
- pDocPageData = pPattern->m_pDocument->GetPageData();
- }
- pvalue->m_pCountedPattern =
- pDocPageData->FindPatternPtr(pPattern->m_pPatternObj);
- }
-}
-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) {
- return;
- }
- m_pBuffer = m_pCS->CreateBuf();
- FXSYS_memcpy(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 || !m_pBuffer) {
- 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 = (int32_t)(r * 255 + 0.5f);
- G = (int32_t)(g * 255 + 0.5f);
- B = (int32_t)(b * 255 + 0.5f);
- return TRUE;
-}
-CPDF_Pattern* CPDF_Color::GetPattern() const {
- if (!m_pBuffer || 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 || m_pCS->GetFamily() != PDFCS_PATTERN) {
- return NULL;
- }
- return m_pCS->GetBaseCS();
-}
-FX_FLOAT* CPDF_Color::GetPatternColor() const {
- if (!m_pBuffer || 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 {
- return m_pCS && m_pCS == other.m_pCS &&
- FXSYS_memcmp(m_pBuffer, other.m_pBuffer, m_pCS->GetBufSize()) == 0;
-}
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