From 41872fa5ac7448a50f66ad56d7bde8d1aa77db4b Mon Sep 17 00:00:00 2001 From: dsinclair Date: Tue, 4 Oct 2016 11:29:35 -0700 Subject: Move core/fpdfapi/fpdf_page to core/fpdfapi/page BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2386423004 --- core/fpdfapi/fpdf_page/cpdf_colorspace.cpp | 1277 ---------------------------- 1 file changed, 1277 deletions(-) delete mode 100644 core/fpdfapi/fpdf_page/cpdf_colorspace.cpp (limited to 'core/fpdfapi/fpdf_page/cpdf_colorspace.cpp') diff --git a/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp b/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp deleted file mode 100644 index d7469b6d98..0000000000 --- a/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp +++ /dev/null @@ -1,1277 +0,0 @@ -// 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/cpdf_colorspace.h" - -#include - -#include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/fpdf_page/cpdf_pagemodule.h" -#include "core/fpdfapi/fpdf_page/pageint.h" -#include "core/fpdfapi/fpdf_parser/cpdf_array.h" -#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" -#include "core/fpdfapi/fpdf_parser/cpdf_document.h" -#include "core/fpdfapi/fpdf_parser/cpdf_object.h" -#include "core/fpdfapi/fpdf_parser/cpdf_stream.h" -#include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h" -#include "core/fpdfapi/fpdf_parser/cpdf_string.h" -#include "core/fxcodec/fx_codec.h" - -namespace { - -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, -}; - -class CPDF_CalGray : public CPDF_ColorSpace { - public: - 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, - 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; -}; - -class CPDF_CalRGB : public CPDF_ColorSpace { - public: - 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, - 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; -}; - -class CPDF_LabCS : public CPDF_ColorSpace { - public: - 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 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]; -}; - -class CPDF_ICCBasedCS : public CPDF_ColorSpace { - public: - 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, - 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; -}; - -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; - - std::unique_ptr m_pAltCS; - std::unique_ptr 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; - - std::unique_ptr m_pAltCS; - std::unique_ptr 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; -} - -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); - 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 nullptr; -} - -CPDF_ColorSpace* CPDF_ColorSpace::GetStockCS(int family) { - return CPDF_ModuleMgr::Get()->GetPageModule()->GetStockCS(family); -} - -std::unique_ptr CPDF_ColorSpace::Load(CPDF_Document* pDoc, - CPDF_Object* pObj) { - if (!pObj) - return std::unique_ptr(); - - if (pObj->IsName()) { - return std::unique_ptr( - ColorspaceFromName(pObj->GetString())); - } - if (CPDF_Stream* pStream = pObj->AsStream()) { - CPDF_Dictionary* pDict = pStream->GetDict(); - if (!pDict) - return std::unique_ptr(); - - for (const auto& it : *pDict) { - std::unique_ptr pRet; - CPDF_Object* pValue = it.second; - if (ToName(pValue)) - pRet.reset(ColorspaceFromName(pValue->GetString())); - if (pRet) - return pRet; - } - return std::unique_ptr(); - } - - CPDF_Array* pArray = pObj->AsArray(); - if (!pArray || pArray->IsEmpty()) - return std::unique_ptr(); - - CPDF_Object* pFamilyObj = pArray->GetDirectObjectAt(0); - if (!pFamilyObj) - return std::unique_ptr(); - - CFX_ByteString familyname = pFamilyObj->GetString(); - if (pArray->GetCount() == 1) - return std::unique_ptr(ColorspaceFromName(familyname)); - - std::unique_ptr 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 std::unique_ptr(); - } - pCS->m_pArray = pArray; - if (!pCS->v_Load(pDoc, pArray)) - return std::unique_ptr(); - - return pCS; -} - -void CPDF_ColorSpace::Release() { - if (this == GetStockCS(PDFCS_DEVICERGB) || - this == GetStockCS(PDFCS_DEVICEGRAY) || - this == GetStockCS(PDFCS_DEVICECMYK) || - 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::SetRGB(FX_FLOAT* pBuf, - FX_FLOAT R, - FX_FLOAT G, - FX_FLOAT B) const { - return FALSE; -} - -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 (uint32_t i = 0; i < m_nComponents; i++) { - GetDefaultValue(i, buf[i], min, max); - } -} - -uint32_t CPDF_ColorSpace::CountComponents() const { - return m_nComponents; -} - -void CPDF_ColorSpace::GetDefaultValue(int iComponent, - FX_FLOAT& value, - FX_FLOAT& min, - FX_FLOAT& max) const { - value = 0; - min = 0; - max = 1.0f; -} - -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 srcbuf(m_nComponents); - FX_FLOAT* src = srcbuf; - FX_FLOAT R, G, B; - for (int i = 0; i < pixels; i++) { - for (uint32_t 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); - } -} - -CPDF_ColorSpace* CPDF_ColorSpace::GetBaseCS() const { - return nullptr; -} - -void CPDF_ColorSpace::EnableStdConversion(FX_BOOL bEnabled) { - if (bEnabled) - m_dwStdConversion++; - else if (m_dwStdConversion) - m_dwStdConversion--; -} - -CPDF_ColorSpace::CPDF_ColorSpace(CPDF_Document* pDoc, - int family, - uint32_t nComponents) - : m_pDocument(pDoc), - m_Family(family), - m_nComponents(nComponents), - m_pArray(nullptr), - m_dwStdConversion(0) {} - -CPDF_ColorSpace::~CPDF_ColorSpace() {} - -FX_BOOL CPDF_ColorSpace::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { - return TRUE; -} - -FX_BOOL CPDF_ColorSpace::v_GetCMYK(FX_FLOAT* pBuf, - FX_FLOAT& c, - FX_FLOAT& m, - FX_FLOAT& y, - FX_FLOAT& k) const { - return FALSE; -} - -FX_BOOL CPDF_ColorSpace::v_SetCMYK(FX_FLOAT* pBuf, - FX_FLOAT c, - FX_FLOAT m, - FX_FLOAT y, - FX_FLOAT k) const { - return FALSE; -} - -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->GetArrayFor("WhitePoint"); - int i; - for (i = 0; i < 3; i++) - m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - pParam = pDict->GetArrayFor("BlackPoint"); - for (i = 0; i < 3; i++) - m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - m_Gamma = pDict->GetNumberFor("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->GetArrayFor("WhitePoint"); - int i; - for (i = 0; i < 3; i++) - m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - pParam = pDict->GetArrayFor("BlackPoint"); - for (i = 0; i < 3; i++) - m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - pParam = pDict->GetArrayFor("Gamma"); - if (pParam) { - m_bGamma = TRUE; - for (i = 0; i < 3; i++) - m_Gamma[i] = pParam->GetNumberAt(i); - } else { - m_bGamma = FALSE; - } - - pParam = pDict->GetArrayFor("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->GetArrayFor("WhitePoint"); - int i; - for (i = 0; i < 3; i++) - m_WhitePoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - pParam = pDict->GetArrayFor("BlackPoint"); - for (i = 0; i < 3; i++) - m_BlackPoint[i] = pParam ? pParam->GetNumberAt(i) : 0; - - pParam = pDict->GetArrayFor("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->Release(); - 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->GetDirectObjectFor("Alternate") : nullptr; - if (pAlterCSObj) { - std::unique_ptr 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.release(); - m_bOwn = TRUE; - } 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 = pAlterCS.release(); - 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->GetArrayFor("Range"); - m_pRanges = FX_Alloc2D(FX_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; - } - 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; - } - CCodec_IccModule* pIccModule = CPDF_ModuleMgr::Get()->GetIccModule(); - if (!m_pProfile->m_pTransform || !pIccModule) { - if (m_pAlterCS) - return m_pAlterCS->GetRGB(pBuf, R, G, B); - - R = 0.0f; - G = 0.0f; - 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::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) - return FALSE; - - c = pBuf[0]; - m = pBuf[1]; - y = pBuf[2]; - k = pBuf[3]; - return TRUE; -} - -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 (uint32_t 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++) { - uint32_t color = i; - uint32_t order = nMaxColors / 52; - for (uint32_t 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 (uint32_t 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); - } -} - -CPDF_IndexedCS::CPDF_IndexedCS(CPDF_Document* pDoc) - : CPDF_ColorSpace(pDoc, PDFCS_INDEXED, 1), - m_pBaseCS(nullptr), - m_pCountedBaseCS(nullptr), - m_pCompMinMax(nullptr) {} - -CPDF_IndexedCS::~CPDF_IndexedCS() { - FX_Free(m_pCompMinMax); - CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : nullptr; - 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->GetDirectObjectAt(1); - if (pBaseObj == m_pArray) { - return FALSE; - } - CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); - m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, nullptr); - 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->GetDirectObjectAt(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 Comps(m_nBaseComponents); - FX_FLOAT* comps = Comps; - const uint8_t* pTable = m_Table.raw_str(); - 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); - } -} - -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() : nullptr; - 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->GetDirectObjectAt(1); - 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 { - 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; -} - -CPDF_SeparationCS::CPDF_SeparationCS(CPDF_Document* pDoc) - : CPDF_ColorSpace(pDoc, PDFCS_SEPARATION, 1) {} - -CPDF_SeparationCS::~CPDF_SeparationCS() {} - -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; - return TRUE; - } - - m_Type = Colorant; - CPDF_Object* pAltCS = pArray->GetDirectObjectAt(2); - if (pAltCS == m_pArray) - return FALSE; - - m_pAltCS = Load(pDoc, pAltCS); - if (!m_pAltCS) - return FALSE; - - CPDF_Object* pFuncObj = pArray->GetDirectObjectAt(3); - if (pFuncObj && !pFuncObj->IsName()) - m_pFunc = CPDF_Function::Load(pFuncObj); - - if (m_pFunc && m_pFunc->CountOutputs() < m_pAltCS->CountComponents()) - m_pFunc.reset(); - 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 results(nComps); - for (int i = 0; i < nComps; i++) - results[i] = *pBuf; - return m_pAltCS->GetRGB(results, R, G, B); - } - - CFX_FixedBufGrow 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 = 0; - G = 0; - B = 0; - return FALSE; -} - -void CPDF_SeparationCS::EnableStdConversion(FX_BOOL bEnabled) { - CPDF_ColorSpace::EnableStdConversion(bEnabled); - if (m_pAltCS) - m_pAltCS->EnableStdConversion(bEnabled); -} - -CPDF_DeviceNCS::CPDF_DeviceNCS(CPDF_Document* pDoc) - : CPDF_ColorSpace(pDoc, PDFCS_DEVICEN, 0) {} - -CPDF_DeviceNCS::~CPDF_DeviceNCS() {} - -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->GetDirectObjectAt(1)); - if (!pObj) - return FALSE; - - m_nComponents = pObj->GetCount(); - CPDF_Object* pAltCS = pArray->GetDirectObjectAt(2); - if (!pAltCS || pAltCS == m_pArray) - return FALSE; - - m_pAltCS = Load(pDoc, pAltCS); - m_pFunc = CPDF_Function::Load(pArray->GetDirectObjectAt(3)); - if (!m_pAltCS || !m_pFunc) - return FALSE; - - return m_pFunc->CountOutputs() >= m_pAltCS->CountComponents(); -} - -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 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); - } -} -- cgit v1.2.3