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-rw-r--r--core/fpdfapi/page/cpdf_colorspace.cpp564
1 files changed, 297 insertions, 267 deletions
diff --git a/core/fpdfapi/page/cpdf_colorspace.cpp b/core/fpdfapi/page/cpdf_colorspace.cpp
index a88edb1828..7a85284ca7 100644
--- a/core/fpdfapi/page/cpdf_colorspace.cpp
+++ b/core/fpdfapi/page/cpdf_colorspace.cpp
@@ -6,6 +6,7 @@
#include "core/fpdfapi/page/cpdf_colorspace.h"
+#include <algorithm>
#include <memory>
#include <utility>
@@ -62,18 +63,18 @@ const uint8_t g_sRGBSamples2[] = {
class CPDF_CalGray : public CPDF_ColorSpace {
public:
explicit CPDF_CalGray(CPDF_Document* pDoc);
+ ~CPDF_CalGray() override {}
+ // CPDF_ColorSpace:
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
-
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
bool SetRGB(float* pBuf, float R, float G, float B) const override;
-
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
int image_width,
int image_height,
- bool bTransMask = false) const override;
+ bool bTransMask) const override;
private:
float m_WhitePoint[3];
@@ -84,10 +85,11 @@ class CPDF_CalGray : public CPDF_ColorSpace {
class CPDF_CalRGB : public CPDF_ColorSpace {
public:
explicit CPDF_CalRGB(CPDF_Document* pDoc);
+ ~CPDF_CalRGB() override {}
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
bool SetRGB(float* pBuf, float R, float G, float B) const override;
void TranslateImageLine(uint8_t* pDestBuf,
@@ -95,7 +97,7 @@ class CPDF_CalRGB : public CPDF_ColorSpace {
int pixels,
int image_width,
int image_height,
- bool bTransMask = false) const override;
+ bool bTransMask) const override;
float m_WhitePoint[3];
float m_BlackPoint[3];
@@ -108,22 +110,22 @@ class CPDF_CalRGB : public CPDF_ColorSpace {
class CPDF_LabCS : public CPDF_ColorSpace {
public:
explicit CPDF_LabCS(CPDF_Document* pDoc);
+ ~CPDF_LabCS() override {}
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
void GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const override;
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
- bool SetRGB(float* pBuf, float R, float G, float B) const override;
+ float* value,
+ float* min,
+ float* max) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
int image_width,
int image_height,
- bool bTransMask = false) const override;
+ bool bTransMask) const override;
float m_WhitePoint[3];
float m_BlackPoint[3];
@@ -135,24 +137,30 @@ class CPDF_ICCBasedCS : public CPDF_ColorSpace {
explicit CPDF_ICCBasedCS(CPDF_Document* pDoc);
~CPDF_ICCBasedCS() override;
+ // CPDF_ColorSpace:
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
-
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
- bool SetRGB(float* pBuf, float R, float G, float B) const override;
-
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
bool v_GetCMYK(float* pBuf,
- float& c,
- float& m,
- float& y,
- float& k) const override;
-
+ float* c,
+ float* m,
+ float* y,
+ float* k) const override;
void EnableStdConversion(bool bEnabled) override;
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
int image_width,
int image_height,
- bool bTransMask = false) const override;
+ bool bTransMask) const override;
+
+ bool IsSRGB() const { return m_pProfile->m_bsRGB; }
+
+ private:
+ // If no valid ICC profile or using sRGB, try looking for an alternate.
+ bool FindAlternateProfile(CPDF_Document* pDoc, CPDF_Dictionary* pDict);
+
+ void UseStockAlternateProfile();
+ void PopulateRanges(CPDF_Dictionary* pDict);
CFX_MaybeOwned<CPDF_ColorSpace> m_pAlterCS;
CPDF_IccProfile* m_pProfile;
@@ -167,7 +175,7 @@ class CPDF_IndexedCS : public CPDF_ColorSpace {
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
CPDF_ColorSpace* GetBaseCS() const override;
void EnableStdConversion(bool bEnabled) override;
@@ -187,11 +195,11 @@ class CPDF_SeparationCS : public CPDF_ColorSpace {
// CPDF_ColorSpace:
void GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const override;
+ float* value,
+ float* min,
+ float* max) const override;
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void EnableStdConversion(bool bEnabled) override;
std::unique_ptr<CPDF_ColorSpace> m_pAltCS;
@@ -206,11 +214,11 @@ class CPDF_DeviceNCS : public CPDF_ColorSpace {
// CPDF_ColorSpace:
void GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const override;
+ float* value,
+ float* min,
+ float* max) const override;
bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- bool GetRGB(float* pBuf, float& R, float& G, float& B) const override;
+ bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void EnableStdConversion(bool bEnabled) override;
std::unique_ptr<CPDF_ColorSpace> m_pAltCS;
@@ -218,40 +226,32 @@ class CPDF_DeviceNCS : public CPDF_ColorSpace {
};
float RGB_Conversion(float colorComponent) {
- if (colorComponent > 1)
- colorComponent = 1;
- if (colorComponent < 0)
- colorComponent = 0;
-
- int scale = (int)(colorComponent * 1023);
- if (scale < 0)
- scale = 0;
+ colorComponent = std::min(std::max(colorComponent, 0.0f), 1.0f);
+ int scale = std::max(static_cast<int>(colorComponent * 1023), 0);
if (scale < 192)
- colorComponent = (g_sRGBSamples1[scale] / 255.0f);
- else
- colorComponent = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
- return colorComponent;
+ return g_sRGBSamples1[scale] / 255.0f;
+ return g_sRGBSamples2[scale / 4 - 48] / 255.0f;
}
-void XYZ_to_sRGB(float X, float Y, float Z, float& R, float& G, float& B) {
+void XYZ_to_sRGB(float X, float Y, float Z, float* R, float* G, float* B) {
float R1 = 3.2410f * X - 1.5374f * Y - 0.4986f * Z;
float G1 = -0.9692f * X + 1.8760f * Y + 0.0416f * Z;
float B1 = 0.0556f * X - 0.2040f * Y + 1.0570f * Z;
- R = RGB_Conversion(R1);
- G = RGB_Conversion(G1);
- B = RGB_Conversion(B1);
+ *R = RGB_Conversion(R1);
+ *G = RGB_Conversion(G1);
+ *B = RGB_Conversion(B1);
}
void XYZ_to_sRGB_WhitePoint(float X,
float Y,
float Z,
- float& R,
- float& G,
- float& B,
float Xw,
float Yw,
- float Zw) {
+ float Zw,
+ float* R,
+ float* G,
+ float* B) {
// 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}
@@ -269,9 +269,9 @@ void XYZ_to_sRGB_WhitePoint(float X,
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);
+ *R = RGB_Conversion(RGB.a);
+ *G = RGB_Conversion(RGB.b);
+ *B = RGB_Conversion(RGB.c);
}
} // namespace
@@ -331,26 +331,34 @@ std::unique_ptr<CPDF_ColorSpace> CPDF_ColorSpace::Load(CPDF_Document* pDoc,
return std::unique_ptr<CPDF_ColorSpace>(ColorspaceFromName(familyname));
std::unique_ptr<CPDF_ColorSpace> pCS;
- uint32_t id = familyname.GetID();
- if (id == FXBSTR_ID('C', 'a', 'l', 'G')) {
- pCS.reset(new CPDF_CalGray(pDoc));
- } else if (id == FXBSTR_ID('C', 'a', 'l', 'R')) {
- pCS.reset(new CPDF_CalRGB(pDoc));
- } else if (id == FXBSTR_ID('L', 'a', 'b', 0)) {
- pCS.reset(new CPDF_LabCS(pDoc));
- } else if (id == FXBSTR_ID('I', 'C', 'C', 'B')) {
- pCS.reset(new CPDF_ICCBasedCS(pDoc));
- } else if (id == FXBSTR_ID('I', 'n', 'd', 'e') ||
- id == FXBSTR_ID('I', 0, 0, 0)) {
- pCS.reset(new CPDF_IndexedCS(pDoc));
- } else if (id == FXBSTR_ID('S', 'e', 'p', 'a')) {
- pCS.reset(new CPDF_SeparationCS(pDoc));
- } else if (id == FXBSTR_ID('D', 'e', 'v', 'i')) {
- pCS.reset(new CPDF_DeviceNCS(pDoc));
- } else if (id == FXBSTR_ID('P', 'a', 't', 't')) {
- pCS.reset(new CPDF_PatternCS(pDoc));
- } else {
- return nullptr;
+ switch (familyname.GetID()) {
+ case FXBSTR_ID('C', 'a', 'l', 'G'):
+ pCS.reset(new CPDF_CalGray(pDoc));
+ break;
+ case FXBSTR_ID('C', 'a', 'l', 'R'):
+ pCS.reset(new CPDF_CalRGB(pDoc));
+ break;
+ case FXBSTR_ID('L', 'a', 'b', 0):
+ pCS.reset(new CPDF_LabCS(pDoc));
+ break;
+ case FXBSTR_ID('I', 'C', 'C', 'B'):
+ pCS.reset(new CPDF_ICCBasedCS(pDoc));
+ break;
+ case FXBSTR_ID('I', 'n', 'd', 'e'):
+ case FXBSTR_ID('I', 0, 0, 0):
+ pCS.reset(new CPDF_IndexedCS(pDoc));
+ break;
+ case FXBSTR_ID('S', 'e', 'p', 'a'):
+ pCS.reset(new CPDF_SeparationCS(pDoc));
+ break;
+ case FXBSTR_ID('D', 'e', 'v', 'i'):
+ pCS.reset(new CPDF_DeviceNCS(pDoc));
+ break;
+ case FXBSTR_ID('P', 'a', 't', 't'):
+ pCS.reset(new CPDF_PatternCS(pDoc));
+ break;
+ default:
+ return nullptr;
}
pCS->m_pArray = pArray;
if (!pCS->v_Load(pDoc, pArray))
@@ -383,14 +391,14 @@ float* CPDF_ColorSpace::CreateBuf() {
}
bool CPDF_ColorSpace::sRGB() const {
- if (m_Family == PDFCS_DEVICERGB) {
+ if (m_Family == PDFCS_DEVICERGB)
return true;
- }
- if (m_Family != PDFCS_ICCBASED) {
+
+ if (m_Family != PDFCS_ICCBASED)
return false;
- }
- CPDF_ICCBasedCS* pCS = (CPDF_ICCBasedCS*)this;
- return pCS->m_pProfile->m_bsRGB;
+
+ const CPDF_ICCBasedCS* pCS = static_cast<const CPDF_ICCBasedCS*>(this);
+ return pCS->IsSRGB();
}
bool CPDF_ColorSpace::SetRGB(float* pBuf, float R, float G, float B) const {
@@ -398,18 +406,20 @@ bool CPDF_ColorSpace::SetRGB(float* pBuf, float R, float G, float B) const {
}
bool CPDF_ColorSpace::GetCMYK(float* pBuf,
- float& c,
- float& m,
- float& y,
- float& k) const {
- if (v_GetCMYK(pBuf, c, m, y, k)) {
+ float* c,
+ float* m,
+ float* y,
+ float* k) const {
+ if (v_GetCMYK(pBuf, c, m, y, k))
return true;
- }
- float R, G, B;
- if (!GetRGB(pBuf, R, G, B)) {
+
+ float R;
+ float G;
+ float B;
+ if (!GetRGB(pBuf, &R, &G, &B))
return false;
- }
- sRGB_to_AdobeCMYK(R, G, B, c, m, y, k);
+
+ sRGB_to_AdobeCMYK(R, G, B, *c, *m, *y, *k);
return true;
}
@@ -418,22 +428,24 @@ bool CPDF_ColorSpace::SetCMYK(float* pBuf,
float m,
float y,
float k) const {
- if (v_SetCMYK(pBuf, c, m, y, k)) {
+ if (v_SetCMYK(pBuf, c, m, y, k))
return true;
- }
- float R, G, B;
+
+ float R;
+ float G;
+ float B;
AdobeCMYK_to_sRGB(c, m, y, k, R, G, B);
return SetRGB(pBuf, R, G, B);
}
void CPDF_ColorSpace::GetDefaultColor(float* buf) const {
- if (!buf || m_Family == PDFCS_PATTERN) {
+ if (!buf || m_Family == PDFCS_PATTERN)
return;
- }
- float min, max;
- for (uint32_t i = 0; i < m_nComponents; i++) {
- GetDefaultValue(i, buf[i], min, max);
- }
+
+ float min;
+ float max;
+ for (uint32_t i = 0; i < m_nComponents; i++)
+ GetDefaultValue(i, &buf[i], &min, &max);
}
uint32_t CPDF_ColorSpace::CountComponents() const {
@@ -441,12 +453,12 @@ uint32_t CPDF_ColorSpace::CountComponents() const {
}
void CPDF_ColorSpace::GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const {
- value = 0;
- min = 0;
- max = 1.0f;
+ float* value,
+ float* min,
+ float* max) const {
+ *value = 0.0f;
+ *min = 0.0f;
+ *max = 1.0f;
}
void CPDF_ColorSpace::TranslateImageLine(uint8_t* dest_buf,
@@ -457,18 +469,17 @@ void CPDF_ColorSpace::TranslateImageLine(uint8_t* dest_buf,
bool bTransMask) const {
CFX_FixedBufGrow<float, 16> srcbuf(m_nComponents);
float* src = srcbuf;
- float R, G, B;
+ float R;
+ float G;
+ float B;
+ const int divisor = m_Family != PDFCS_INDEXED ? 255 : 1;
for (int i = 0; i < pixels; i++) {
for (uint32_t j = 0; j < m_nComponents; j++)
- if (m_Family == PDFCS_INDEXED) {
- src[j] = (float)(*src_buf++);
- } else {
- src[j] = (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);
+ src[j] = static_cast<float>(*src_buf++) / divisor;
+ GetRGB(src, &R, &G, &B);
+ *dest_buf++ = static_cast<int32_t>(B * 255);
+ *dest_buf++ = static_cast<int32_t>(G * 255);
+ *dest_buf++ = static_cast<int32_t>(R * 255);
}
}
@@ -499,10 +510,10 @@ bool CPDF_ColorSpace::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
bool CPDF_ColorSpace::v_GetCMYK(float* pBuf,
- float& c,
- float& m,
- float& y,
- float& k) const {
+ float* c,
+ float* m,
+ float* y,
+ float* k) const {
return false;
}
@@ -537,8 +548,10 @@ bool CPDF_CalGray::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return true;
}
-bool CPDF_CalGray::GetRGB(float* pBuf, float& R, float& G, float& B) const {
- R = G = B = *pBuf;
+bool CPDF_CalGray::GetRGB(float* pBuf, float* R, float* G, float* B) const {
+ *R = *pBuf;
+ *G = *pBuf;
+ *B = *pBuf;
return true;
}
@@ -600,7 +613,7 @@ bool CPDF_CalRGB::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return true;
}
-bool CPDF_CalRGB::GetRGB(float* pBuf, float& R, float& G, float& B) const {
+bool CPDF_CalRGB::GetRGB(float* pBuf, float* R, float* G, float* B) const {
float A_ = pBuf[0];
float B_ = pBuf[1];
float C_ = pBuf[2];
@@ -622,8 +635,8 @@ bool CPDF_CalRGB::GetRGB(float* pBuf, float& R, float& G, float& B) const {
Y = B_;
Z = C_;
}
- XYZ_to_sRGB_WhitePoint(X, Y, Z, R, G, B, m_WhitePoint[0], m_WhitePoint[1],
- m_WhitePoint[2]);
+ XYZ_to_sRGB_WhitePoint(X, Y, Z, m_WhitePoint[0], m_WhitePoint[1],
+ m_WhitePoint[2], R, G, B);
return true;
}
@@ -646,10 +659,10 @@ void CPDF_CalRGB::TranslateImageLine(uint8_t* pDestBuf,
float G;
float B;
for (int i = 0; i < pixels; i++) {
- Cal[0] = ((float)pSrcBuf[2]) / 255;
- Cal[1] = ((float)pSrcBuf[1]) / 255;
- Cal[2] = ((float)pSrcBuf[0]) / 255;
- GetRGB(Cal, R, G, B);
+ Cal[0] = static_cast<float>(pSrcBuf[2]) / 255;
+ Cal[1] = static_cast<float>(pSrcBuf[1]) / 255;
+ Cal[2] = static_cast<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);
@@ -664,21 +677,18 @@ CPDF_LabCS::CPDF_LabCS(CPDF_Document* pDoc)
: CPDF_ColorSpace(pDoc, PDFCS_LAB, 3) {}
void CPDF_LabCS::GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const {
+ float* value,
+ float* min,
+ float* max) const {
ASSERT(iComponent < 3);
- value = 0;
if (iComponent == 0) {
- min = 0;
- max = 100 * 1.0f;
+ *min = 0.0f;
+ *max = 100 * 1.0f;
+ *value = 0.0f;
} else {
- min = m_Ranges[iComponent * 2 - 2];
- max = m_Ranges[iComponent * 2 - 1];
- if (value < min)
- value = min;
- else if (value > max)
- value = max;
+ *min = m_Ranges[iComponent * 2 - 2];
+ *max = m_Ranges[iComponent * 2 - 1];
+ *value = std::min(std::max(0.0f, *min), *max);
}
}
@@ -704,14 +714,16 @@ bool CPDF_LabCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return true;
}
-bool CPDF_LabCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
+bool CPDF_LabCS::GetRGB(float* pBuf, float* R, float* G, float* B) const {
float Lstar = pBuf[0];
float astar = pBuf[1];
float bstar = pBuf[2];
float M = (Lstar + 16.0f) / 116.0f;
float L = M + astar / 500.0f;
float N = M - bstar / 200.0f;
- float X, Y, Z;
+ float X;
+ float Y;
+ float Z;
if (L < 0.2069f)
X = 0.957f * 0.12842f * (L - 0.1379f);
else
@@ -731,10 +743,6 @@ bool CPDF_LabCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
return true;
}
-bool CPDF_LabCS::SetRGB(float* pBuf, float R, float G, float B) const {
- return false;
-}
-
void CPDF_LabCS::TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
int pixels,
@@ -743,14 +751,16 @@ void CPDF_LabCS::TranslateImageLine(uint8_t* pDestBuf,
bool bTransMask) const {
for (int i = 0; i < pixels; i++) {
float lab[3];
- float R, G, B;
+ float R;
+ float G;
+ float B;
lab[0] = (pSrcBuf[0] * 100 / 255.0f);
lab[1] = (float)(pSrcBuf[1] - 128);
lab[2] = (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);
+ GetRGB(lab, &R, &G, &B);
+ pDestBuf[0] = static_cast<int32_t>(B * 255);
+ pDestBuf[1] = static_cast<int32_t>(G * 255);
+ pDestBuf[2] = static_cast<int32_t>(R * 255);
pDestBuf += 3;
pSrcBuf += 3;
}
@@ -781,58 +791,18 @@ bool CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
// Try using the |nComponents| from ICC profile
m_nComponents = m_pProfile->GetComponents();
CPDF_Dictionary* pDict = pStream->GetDict();
- if (!m_pProfile->m_pTransform) { // No valid ICC profile or using sRGB
- CPDF_Object* pAlterCSObj =
- pDict ? pDict->GetDirectObjectFor("Alternate") : nullptr;
- if (pAlterCSObj) {
- std::unique_ptr<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 = std::move(pAlterCS);
- } else { // No valid alternative colorspace
- int32_t nDictComponents = pDict ? pDict->GetIntegerFor("N") : 0;
- if (nDictComponents != 1 && nDictComponents != 3 &&
- nDictComponents != 4) {
- return false;
- }
- m_nComponents = nDictComponents;
- }
- } else { // Using sRGB
- if (pAlterCS->CountComponents() == m_nComponents)
- m_pAlterCS = std::move(pAlterCS);
- }
- }
- }
- 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->GetArrayFor("Range");
- m_pRanges = FX_Alloc2D(float, m_nComponents, 2);
- for (uint32_t 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;
- }
+ if (!m_pProfile->m_pTransform && !FindAlternateProfile(pDoc, pDict))
+ return false;
+
+ PopulateRanges(pDict);
return true;
}
-bool CPDF_ICCBasedCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
+bool CPDF_ICCBasedCS::GetRGB(float* pBuf, float* R, float* G, float* B) const {
if (m_pProfile && m_pProfile->m_bsRGB) {
- R = pBuf[0];
- G = pBuf[1];
- B = pBuf[2];
+ *R = pBuf[0];
+ *G = pBuf[1];
+ *B = pBuf[2];
return true;
}
CCodec_IccModule* pIccModule = CPDF_ModuleMgr::Get()->GetIccModule();
@@ -840,36 +810,32 @@ bool CPDF_ICCBasedCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
if (m_pAlterCS)
return m_pAlterCS->GetRGB(pBuf, R, G, B);
- R = 0.0f;
- G = 0.0f;
- B = 0.0f;
+ *R = 0.0f;
+ *G = 0.0f;
+ *B = 0.0f;
return true;
}
float rgb[3];
pIccModule->SetComponents(m_nComponents);
pIccModule->Translate(m_pProfile->m_pTransform, pBuf, rgb);
- R = rgb[0];
- G = rgb[1];
- B = rgb[2];
+ *R = rgb[0];
+ *G = rgb[1];
+ *B = rgb[2];
return true;
}
-bool CPDF_ICCBasedCS::SetRGB(float* pBuf, float R, float G, float B) const {
- return false;
-}
-
bool CPDF_ICCBasedCS::v_GetCMYK(float* pBuf,
- float& c,
- float& m,
- float& y,
- float& k) const {
+ float* c,
+ float* m,
+ float* y,
+ float* k) const {
if (m_nComponents != 4)
return false;
- c = pBuf[0];
- m = pBuf[1];
- y = pBuf[2];
- k = pBuf[3];
+ *c = pBuf[0];
+ *m = pBuf[1];
+ *y = pBuf[2];
+ *k = pBuf[3];
return true;
}
@@ -927,7 +893,73 @@ void CPDF_ICCBasedCS::TranslateImageLine(uint8_t* pDestBuf,
}
} else if (m_pAlterCS) {
m_pAlterCS->TranslateImageLine(pDestBuf, pSrcBuf, pixels, image_width,
- image_height);
+ image_height, false);
+ }
+}
+
+bool CPDF_ICCBasedCS::FindAlternateProfile(CPDF_Document* pDoc,
+ CPDF_Dictionary* pDict) {
+ CPDF_Object* pAlterCSObj =
+ pDict ? pDict->GetDirectObjectFor("Alternate") : nullptr;
+ if (!pAlterCSObj) {
+ UseStockAlternateProfile();
+ return true;
+ }
+
+ auto pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj);
+ if (!pAlterCS) {
+ UseStockAlternateProfile();
+ return true;
+ }
+
+ if (m_nComponents) {
+ ASSERT(IsSRGB()); // Using sRGB case.
+ if (pAlterCS->CountComponents() == m_nComponents)
+ m_pAlterCS = std::move(pAlterCS);
+ else
+ UseStockAlternateProfile();
+ return true;
+ }
+
+ // NO valid ICC profile
+ if (pAlterCS->CountComponents() > 0) {
+ // Use Alternative colorspace
+ m_nComponents = pAlterCS->CountComponents();
+ m_pAlterCS = std::move(pAlterCS);
+ return true;
+ }
+
+ int32_t nDictComponents = pDict ? pDict->GetIntegerFor("N") : 0;
+ if (nDictComponents == 1 || nDictComponents == 3 || nDictComponents == 4) {
+ m_nComponents = nDictComponents;
+ UseStockAlternateProfile();
+ return true;
+ }
+
+ // No valid alternative colorspace
+ return false;
+}
+
+void CPDF_ICCBasedCS::UseStockAlternateProfile() {
+ ASSERT(!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);
+}
+
+void CPDF_ICCBasedCS::PopulateRanges(CPDF_Dictionary* pDict) {
+ CPDF_Array* pRanges = pDict->GetArrayFor("Range");
+ m_pRanges = FX_Alloc2D(float, m_nComponents, 2);
+ for (uint32_t 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] = 0.0f;
}
}
@@ -946,25 +978,25 @@ CPDF_IndexedCS::~CPDF_IndexedCS() {
}
bool CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
- if (pArray->GetCount() < 4) {
+ if (pArray->GetCount() < 4)
return false;
- }
+
CPDF_Object* pBaseObj = pArray->GetDirectObjectAt(1);
- if (pBaseObj == m_pArray) {
+ if (pBaseObj == m_pArray)
return false;
- }
+
CPDF_DocPageData* pDocPageData = pDoc->GetPageData();
m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, nullptr);
- if (!m_pBaseCS) {
+ if (!m_pBaseCS)
return false;
- }
+
m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray());
m_nBaseComponents = m_pBaseCS->CountComponents();
m_pCompMinMax = FX_Alloc2D(float, m_nBaseComponents, 2);
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_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);
@@ -983,11 +1015,11 @@ bool CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return true;
}
-bool CPDF_IndexedCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
- int index = (int32_t)(*pBuf);
- if (index < 0 || index > m_MaxIndex) {
+bool CPDF_IndexedCS::GetRGB(float* pBuf, float* R, float* G, float* B) const {
+ int index = static_cast<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()) {
@@ -1012,9 +1044,8 @@ CPDF_ColorSpace* CPDF_IndexedCS::GetBaseCS() const {
void CPDF_IndexedCS::EnableStdConversion(bool bEnabled) {
CPDF_ColorSpace::EnableStdConversion(bEnabled);
- if (m_pBaseCS) {
+ if (m_pBaseCS)
m_pBaseCS->EnableStdConversion(bEnabled);
- }
}
CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc)
@@ -1031,35 +1062,34 @@ CPDF_PatternCS::~CPDF_PatternCS() {
bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1);
- if (pBaseCS == m_pArray) {
+ if (pBaseCS == m_pArray)
return false;
- }
+
CPDF_DocPageData* pDocPageData = pDoc->GetPageData();
m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, nullptr);
- 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 {
+ if (!m_pBaseCS) {
m_nComponents = 1;
+ return true;
}
- return true;
+
+ if (m_pBaseCS->GetFamily() == PDFCS_PATTERN)
+ return false;
+
+ m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray());
+ m_nComponents = m_pBaseCS->CountComponents() + 1;
+ return m_pBaseCS->CountComponents() <= MAX_PATTERN_COLORCOMPS;
}
-bool CPDF_PatternCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
+bool CPDF_PatternCS::GetRGB(float* pBuf, float* R, float* G, 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)) {
+ if (m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B))
return true;
- }
}
- R = G = B = 0.75f;
+ *R = 0.75f;
+ *G = 0.75f;
+ *B = 0.75f;
return false;
}
@@ -1073,12 +1103,12 @@ CPDF_SeparationCS::CPDF_SeparationCS(CPDF_Document* pDoc)
CPDF_SeparationCS::~CPDF_SeparationCS() {}
void CPDF_SeparationCS::GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const {
- value = 1.0f;
- min = 0;
- max = 1.0f;
+ float* value,
+ float* min,
+ float* max) const {
+ *value = 1.0f;
+ *min = 0;
+ *max = 1.0f;
}
bool CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
@@ -1107,9 +1137,9 @@ bool CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
}
bool CPDF_SeparationCS::GetRGB(float* pBuf,
- float& R,
- float& G,
- float& B) const {
+ float* R,
+ float* G,
+ float* B) const {
if (m_Type == None)
return false;
@@ -1126,7 +1156,7 @@ bool CPDF_SeparationCS::GetRGB(float* pBuf,
CFX_FixedBufGrow<float, 16> results(m_pFunc->CountOutputs());
int nresults = 0;
- m_pFunc->Call(pBuf, 1, results, nresults);
+ m_pFunc->Call(pBuf, 1, results, &nresults);
if (nresults == 0)
return false;
@@ -1151,12 +1181,12 @@ CPDF_DeviceNCS::CPDF_DeviceNCS(CPDF_Document* pDoc)
CPDF_DeviceNCS::~CPDF_DeviceNCS() {}
void CPDF_DeviceNCS::GetDefaultValue(int iComponent,
- float& value,
- float& min,
- float& max) const {
- value = 1.0f;
- min = 0;
- max = 1.0f;
+ float* value,
+ float* min,
+ float* max) const {
+ *value = 1.0f;
+ *min = 0;
+ *max = 1.0f;
}
bool CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
@@ -1177,13 +1207,13 @@ bool CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return m_pFunc->CountOutputs() >= m_pAltCS->CountComponents();
}
-bool CPDF_DeviceNCS::GetRGB(float* pBuf, float& R, float& G, float& B) const {
+bool CPDF_DeviceNCS::GetRGB(float* pBuf, float* R, float* G, float* B) const {
if (!m_pFunc)
return false;
CFX_FixedBufGrow<float, 16> results(m_pFunc->CountOutputs());
int nresults = 0;
- m_pFunc->Call(pBuf, m_nComponents, results, nresults);
+ m_pFunc->Call(pBuf, m_nComponents, results, &nresults);
if (nresults == 0)
return false;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 23:37:05 +0000