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

Issue 2386423004: Move core/fpdfapi/fpdf_page to core/fpdfapi/page (Closed)
Patch Set: Rebase to master Created 4 years, 2 months ago
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Index: 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 d7469b6d9883708964051ce30e620ed892517b98..0000000000000000000000000000000000000000
--- 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 <memory>
-
-#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<CPDF_ColorSpace> m_pAltCS;
- std::unique_ptr<CPDF_Function> m_pFunc;
- enum { None, All, Colorant } m_Type;
-};
-
-class CPDF_DeviceNCS : public CPDF_ColorSpace {
- public:
- explicit CPDF_DeviceNCS(CPDF_Document* pDoc);
- ~CPDF_DeviceNCS() override;
-
- // CPDF_ColorSpace:
- void GetDefaultValue(int iComponent,
- FX_FLOAT& value,
- FX_FLOAT& min,
- FX_FLOAT& max) const override;
- FX_BOOL v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
- FX_BOOL GetRGB(FX_FLOAT* pBuf,
- FX_FLOAT& R,
- FX_FLOAT& G,
- FX_FLOAT& B) const override;
- void EnableStdConversion(FX_BOOL bEnabled) override;
-
- std::unique_ptr<CPDF_ColorSpace> m_pAltCS;
- std::unique_ptr<CPDF_Function> m_pFunc;
-};
-
-FX_FLOAT RGB_Conversion(FX_FLOAT colorComponent) {
- if (colorComponent > 1)
- colorComponent = 1;
- if (colorComponent < 0)
- colorComponent = 0;
-
- int scale = (int)(colorComponent * 1023);
- if (scale < 0)
- scale = 0;
- if (scale < 192)
- colorComponent = (g_sRGBSamples1[scale] / 255.0f);
- else
- colorComponent = (g_sRGBSamples2[scale / 4 - 48] / 255.0f);
- return colorComponent;
-}
-
-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> CPDF_ColorSpace::Load(CPDF_Document* pDoc,
- CPDF_Object* pObj) {
- if (!pObj)
- return std::unique_ptr<CPDF_ColorSpace>();
-
- if (pObj->IsName()) {
- return std::unique_ptr<CPDF_ColorSpace>(
- ColorspaceFromName(pObj->GetString()));
- }
- if (CPDF_Stream* pStream = pObj->AsStream()) {
- CPDF_Dictionary* pDict = pStream->GetDict();
- if (!pDict)
- return std::unique_ptr<CPDF_ColorSpace>();
-
- for (const auto& it : *pDict) {
- std::unique_ptr<CPDF_ColorSpace> pRet;
- CPDF_Object* pValue = it.second;
- if (ToName(pValue))
- pRet.reset(ColorspaceFromName(pValue->GetString()));
- if (pRet)
- return pRet;
- }
- return std::unique_ptr<CPDF_ColorSpace>();
- }
-
- CPDF_Array* pArray = pObj->AsArray();
- if (!pArray || pArray->IsEmpty())
- return std::unique_ptr<CPDF_ColorSpace>();
-
- CPDF_Object* pFamilyObj = pArray->GetDirectObjectAt(0);
- if (!pFamilyObj)
- return std::unique_ptr<CPDF_ColorSpace>();
-
- CFX_ByteString familyname = pFamilyObj->GetString();
- if (pArray->GetCount() == 1)
- 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 std::unique_ptr<CPDF_ColorSpace>();
- }
- pCS->m_pArray = pArray;
- if (!pCS->v_Load(pDoc, pArray))
- return std::unique_ptr<CPDF_ColorSpace>();
-
- 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<FX_FLOAT, 16> 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<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.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<FX_FLOAT, 16> 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<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 = 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<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);
- }
-}
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