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-rw-r--r--core/fpdfapi/fpdf_page/fpdf_page_colors.cpp1338
1 files changed, 12 insertions, 1326 deletions
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp b/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp
index d4b69f2d3f..cc40976f29 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_colors.cpp
@@ -13,12 +13,24 @@
#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_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 {
+FX_DWORD ComponentsForFamily(int family) {
+ if (family == PDFCS_DEVICERGB)
+ return 3;
+ if (family == PDFCS_DEVICEGRAY)
+ return 1;
+ return 4;
+}
+
+} // namespace
+
void sRGB_to_AdobeCMYK(FX_FLOAT R,
FX_FLOAT G,
FX_FLOAT B,
@@ -38,14 +50,6 @@ void sRGB_to_AdobeCMYK(FX_FLOAT R,
}
}
-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++) {
@@ -64,8 +68,6 @@ void ReverseRGB(uint8_t* pDestBuf, const uint8_t* pSrcBuf, int pixels) {
}
}
-} // namespace
-
CPDF_DeviceCS::CPDF_DeviceCS(CPDF_Document* pDoc, int family)
: CPDF_ColorSpace(pDoc, family, ComponentsForFamily(family)) {}
@@ -213,420 +215,7 @@ void CPDF_DeviceCS::TranslateImageLine(uint8_t* pDestBuf,
}
}
}
-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,
- 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 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,
- 150, 151, 152, 153, 154, 155, 155, 156, 157, 158, 159, 159, 160, 161, 162,
- 163, 163, 164, 165, 166, 167, 167, 168, 169, 170, 170, 171, 172, 173, 173,
- 174, 175, 175, 176, 177, 178, 178, 179, 180, 180, 181, 182, 182, 183, 184,
- 185, 185, 186, 187, 187, 188, 189, 189, 190, 190, 191, 192, 192, 193, 194,
- 194, 195, 196, 196, 197, 197, 198, 199, 199, 200, 200, 201, 202, 202, 203,
- 203, 204, 205, 205, 206, 206, 207, 208, 208, 209, 209, 210, 210, 211, 212,
- 212, 213, 213, 214, 214, 215, 215, 216, 216, 217, 218, 218, 219, 219, 220,
- 220, 221, 221, 222, 222, 223, 223, 224, 224, 225, 226, 226, 227, 227, 228,
- 228, 229, 229, 230, 230, 231, 231, 232, 232, 233, 233, 234, 234, 235, 235,
- 236, 236, 237, 237, 238, 238, 238, 239, 239, 240, 240, 241, 241, 242, 242,
- 243, 243, 244, 244, 245, 245, 246, 246, 246, 247, 247, 248, 248, 249, 249,
- 250, 250, 251, 251, 251, 252, 252, 253, 253, 254, 254, 255, 255,
-};
-
-static FX_FLOAT RGB_Conversion(FX_FLOAT colorComponent) {
- if (colorComponent > 1) {
- colorComponent = 1;
- }
- if (colorComponent < 0) {
- colorComponent = 0;
- }
- int scale = (int)(colorComponent * 1023);
- if (scale < 0) {
- scale = 0;
- }
- if (scale < 192) {
- colorComponent = (g_sRGBSamples1[scale] / 255.0f);
- } else {
- colorComponent = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
- }
- return colorComponent;
-}
-
-static void XYZ_to_sRGB(FX_FLOAT X,
- FX_FLOAT Y,
- FX_FLOAT Z,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B) {
- FX_FLOAT R1 = 3.2410f * X - 1.5374f * Y - 0.4986f * Z;
- FX_FLOAT G1 = -0.9692f * X + 1.8760f * Y + 0.0416f * Z;
- FX_FLOAT B1 = 0.0556f * X - 0.2040f * Y + 1.0570f * Z;
-
- R = RGB_Conversion(R1);
- G = RGB_Conversion(G1);
- B = RGB_Conversion(B1);
-}
-
-static void XYZ_to_sRGB_WhitePoint(FX_FLOAT X,
- FX_FLOAT Y,
- FX_FLOAT Z,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B,
- FX_FLOAT Xw,
- FX_FLOAT Yw,
- FX_FLOAT Zw) {
- // The following RGB_xyz is based on
- // sRGB value {Rx,Ry}={0.64, 0.33}, {Gx,Gy}={0.30, 0.60}, {Bx,By}={0.15, 0.06}
-
- FX_FLOAT Rx = 0.64f, Ry = 0.33f;
- FX_FLOAT Gx = 0.30f, Gy = 0.60f;
- FX_FLOAT Bx = 0.15f, By = 0.06f;
- CFX_Matrix_3by3 RGB_xyz(Rx, Gx, Bx, Ry, Gy, By, 1 - Rx - Ry, 1 - Gx - Gy,
- 1 - Bx - By);
- CFX_Vector_3by1 whitePoint(Xw, Yw, Zw);
- CFX_Vector_3by1 XYZ(X, Y, Z);
-
- CFX_Vector_3by1 RGB_Sum_XYZ = RGB_xyz.Inverse().TransformVector(whitePoint);
- CFX_Matrix_3by3 RGB_SUM_XYZ_DIAG(RGB_Sum_XYZ.a, 0, 0, 0, RGB_Sum_XYZ.b, 0, 0,
- 0, RGB_Sum_XYZ.c);
- CFX_Matrix_3by3 M = RGB_xyz.Multiply(RGB_SUM_XYZ_DIAG);
- CFX_Vector_3by1 RGB = M.Inverse().TransformVector(XYZ);
-
- R = RGB_Conversion(RGB.a);
- G = RGB_Conversion(RGB.b);
- B = RGB_Conversion(RGB.c);
-}
-class CPDF_CalGray : public CPDF_ColorSpace {
- public:
- explicit CPDF_CalGray(CPDF_Document* pDoc)
- : CPDF_ColorSpace(pDoc, PDFCS_CALGRAY, 1) {}
- 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;
- FX_BOOL SetRGB(FX_FLOAT* pBuf,
- FX_FLOAT R,
- FX_FLOAT G,
- FX_FLOAT B) const override;
- void TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* pSrcBuf,
- int pixels,
- int image_width,
- int image_height,
- FX_BOOL bTransMask = FALSE) const override;
- private:
- FX_FLOAT m_WhitePoint[3];
- FX_FLOAT m_BlackPoint[3];
- 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) {}
- 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;
- FX_BOOL SetRGB(FX_FLOAT* pBuf,
- FX_FLOAT R,
- FX_FLOAT G,
- FX_FLOAT B) const override;
- void TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* pSrcBuf,
- int pixels,
- int image_width,
- int image_height,
- FX_BOOL bTransMask = FALSE) const override;
-
- FX_FLOAT m_WhitePoint[3];
- FX_FLOAT m_BlackPoint[3];
- FX_FLOAT m_Gamma[3];
- FX_FLOAT m_Matrix[9];
- 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) {}
- 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;
- FX_BOOL SetRGB(FX_FLOAT* pBuf,
- FX_FLOAT R,
- FX_FLOAT G,
- FX_FLOAT B) const override;
- void TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* pSrcBuf,
- int pixels,
- int image_width,
- int image_height,
- FX_BOOL bTransMask = FALSE) const override;
-
- 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->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 &&
@@ -643,907 +232,4 @@ CPDF_IccProfile::~CPDF_IccProfile() {
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) {}
- ~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,
- FX_FLOAT& B) const override;
- FX_BOOL SetRGB(FX_FLOAT* pBuf,
- 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,
- int pixels,
- int image_width,
- int image_height,
- FX_BOOL bTransMask = FALSE) const override;
-
- CPDF_ColorSpace* m_pAlterCS;
- CPDF_IccProfile* m_pProfile;
- uint8_t* m_pCache;
- FX_FLOAT* m_pRanges;
- 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);
- }
-}
-
-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") : 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;
- } else { // No valid alternative colorspace
- pAlterCS->ReleaseCS();
- int32_t nDictComponents = pDict ? pDict->GetIntegerBy("N") : 0;
- if (nDictComponents != 1 && nDictComponents != 3 &&
- nDictComponents != 4) {
- return FALSE;
- }
- m_nComponents = nDictComponents;
- }
-
- } else { // Using sRGB
- if (pAlterCS->CountComponents() != m_nComponents) {
- pAlterCS->ReleaseCS();
- } else {
- m_pAlterCS = pAlterCS;
- m_bOwn = TRUE;
- }
- }
- }
- }
- if (!m_pAlterCS) {
- if (m_nComponents == 1) {
- m_pAlterCS = GetStockCS(PDFCS_DEVICEGRAY);
- } else if (m_nComponents == 3) {
- m_pAlterCS = GetStockCS(PDFCS_DEVICERGB);
- } 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) {
- m_pRanges[i] = pRanges->GetNumberAt(i);
- } else if (i % 2) {
- m_pRanges[i] = 1.0f;
- } else {
- m_pRanges[i] = 0;
- }
- }
- 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 || !pIccModule) {
- if (m_pAlterCS) {
- return m_pAlterCS->GetRGB(pBuf, R, G, B);
- }
- R = G = B = 0.0f;
- return TRUE;
- }
- FX_FLOAT rgb[3];
- pIccModule->SetComponents(m_nComponents);
- pIccModule->Translate(m_pProfile->m_pTransform, pBuf, rgb);
- R = rgb[0];
- G = rgb[1];
- B = rgb[2];
- return TRUE;
-}
-FX_BOOL CPDF_ICCBasedCS::v_GetCMYK(FX_FLOAT* pBuf,
- FX_FLOAT& c,
- FX_FLOAT& m,
- FX_FLOAT& y,
- FX_FLOAT& k) const {
- if (m_nComponents != 4) {
- return FALSE;
- }
- c = pBuf[0];
- m = pBuf[1];
- y = pBuf[2];
- k = pBuf[3];
- return TRUE;
-}
-FX_BOOL CPDF_ICCBasedCS::SetRGB(FX_FLOAT* pBuf,
- FX_FLOAT R,
- FX_FLOAT G,
- FX_FLOAT B) const {
- return FALSE;
-}
-void CPDF_ICCBasedCS::EnableStdConversion(FX_BOOL bEnabled) {
- CPDF_ColorSpace::EnableStdConversion(bEnabled);
- if (m_pAlterCS) {
- m_pAlterCS->EnableStdConversion(bEnabled);
- }
-}
-void CPDF_ICCBasedCS::TranslateImageLine(uint8_t* pDestBuf,
- const uint8_t* 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) {
- ((CPDF_ICCBasedCS*)this)->m_pCache = FX_Alloc2D(uint8_t, nMaxColors, 3);
- uint8_t* temp_src = FX_Alloc2D(uint8_t, nMaxColors, m_nComponents);
- uint8_t* 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++ = (uint8_t)(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:
- 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_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;
- 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) {
- return FALSE;
- }
- m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray());
- m_nBaseComponents = m_pBaseCS->CountComponents();
- m_pCompMinMax = FX_Alloc2D(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->GetIntegerAt(2);
-
- CPDF_Object* pTableObj = pArray->GetElementValue(3);
- if (!pTableObj)
- return FALSE;
-
- if (CPDF_String* pString = pTableObj->AsString()) {
- m_Table = pString->GetString();
- } else if (CPDF_Stream* pStream = pTableObj->AsStream()) {
- CPDF_StreamAcc acc;
- acc.LoadAllData(pStream, 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 = (int32_t)(*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;
- const uint8_t* 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;
- }
- 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) {
- m_pBaseCS->EnableStdConversion(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_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : NULL;
- 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) {
- if (m_pBaseCS->GetFamily() == PDFCS_PATTERN) {
- return FALSE;
- }
- m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray());
- 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) {
- ASSERT(m_pBaseCS->GetFamily() != PDFCS_PATTERN);
- PatternValue* pvalue = (PatternValue*)pBuf;
- if (m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B)) {
- return TRUE;
- }
- }
- 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_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,
- FX_FLOAT& max) const {
- value = 1.0f;
- 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") {
- m_Type = None;
- } else {
- m_Type = Colorant;
- CPDF_Object* pAltCS = pArray->GetElementValue(2);
- if (pAltCS == m_pArray) {
- return FALSE;
- }
- m_pAltCS = Load(pDoc, pAltCS);
- if (!m_pAltCS) {
- return FALSE;
- }
- CPDF_Object* pFuncObj = pArray->GetElementValue(3);
- if (pFuncObj && !pFuncObj->IsName())
- m_pFunc = CPDF_Function::Load(pFuncObj);
-
- if (m_pFunc && 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) {
- if (!m_pAltCS) {
- return FALSE;
- }
- int nComps = m_pAltCS->CountComponents();
- CFX_FixedBufGrow<FX_FLOAT, 16> results(nComps);
- for (int i = 0; i < nComps; i++) {
- results[i] = *pBuf;
- }
- return m_pAltCS->GetRGB(results, R, G, B);
- }
- CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
- int nresults = 0;
- m_pFunc->Call(pBuf, 1, results, nresults);
- if (nresults == 0) {
- return FALSE;
- }
- if (m_pAltCS) {
- return m_pAltCS->GetRGB(results, R, G, B);
- }
- 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_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,
- FX_FLOAT& max) const {
- value = 1.0f;
- 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)
- return FALSE;
-
- m_nComponents = 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 || !m_pFunc) {
- 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) {
- return FALSE;
- }
- CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
- int nresults = 0;
- m_pFunc->Call(pBuf, m_nComponents, results, nresults);
- if (nresults == 0) {
- return FALSE;
- }
- 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;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-07 10:24:12 +0000