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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "core/fpdfapi/render/render_int.h" | |
| 8 | |
| 9 #include <memory> | |
| 10 #include <utility> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "core/fpdfapi/page/cpdf_docpagedata.h" | |
| 14 #include "core/fpdfapi/page/cpdf_form.h" | |
| 15 #include "core/fpdfapi/page/cpdf_image.h" | |
| 16 #include "core/fpdfapi/page/cpdf_imageobject.h" | |
| 17 #include "core/fpdfapi/page/cpdf_page.h" | |
| 18 #include "core/fpdfapi/page/cpdf_shadingpattern.h" | |
| 19 #include "core/fpdfapi/page/cpdf_tilingpattern.h" | |
| 20 #include "core/fpdfapi/page/pageint.h" | |
| 21 #include "core/fpdfapi/parser/cpdf_array.h" | |
| 22 #include "core/fpdfapi/parser/cpdf_dictionary.h" | |
| 23 #include "core/fpdfapi/parser/cpdf_document.h" | |
| 24 #include "core/fpdfapi/render/cpdf_pagerendercache.h" | |
| 25 #include "core/fpdfapi/render/cpdf_rendercontext.h" | |
| 26 #include "core/fpdfapi/render/cpdf_renderoptions.h" | |
| 27 #include "core/fpdfapi/render/cpdf_renderstatus.h" | |
| 28 #include "core/fpdfapi/render/cpdf_transferfunc.h" | |
| 29 #include "core/fpdfdoc/cpdf_occontext.h" | |
| 30 #include "core/fxcodec/fx_codec.h" | |
| 31 #include "core/fxcrt/fx_safe_types.h" | |
| 32 #include "core/fxge/cfx_fxgedevice.h" | |
| 33 #include "core/fxge/cfx_pathdata.h" | |
| 34 | |
| 35 #ifdef _SKIA_SUPPORT_ | |
| 36 #include "core/fxge/skia/fx_skia_device.h" | |
| 37 #endif | |
| 38 | |
| 39 CPDF_DIBTransferFunc::~CPDF_DIBTransferFunc() {} | |
| 40 | |
| 41 FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat() { | |
| 42 if (m_pSrc->IsAlphaMask()) { | |
| 43 return FXDIB_8bppMask; | |
| 44 } | |
| 45 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 46 return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb32; | |
| 47 #else | |
| 48 return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb; | |
| 49 #endif | |
| 50 } | |
| 51 | |
| 52 FX_ARGB* CPDF_DIBTransferFunc::GetDestPalette() { | |
| 53 return nullptr; | |
| 54 } | |
| 55 | |
| 56 CPDF_DIBTransferFunc::CPDF_DIBTransferFunc( | |
| 57 const CPDF_TransferFunc* pTransferFunc) { | |
| 58 m_RampR = pTransferFunc->m_Samples; | |
| 59 m_RampG = &pTransferFunc->m_Samples[256]; | |
| 60 m_RampB = &pTransferFunc->m_Samples[512]; | |
| 61 } | |
| 62 | |
| 63 void CPDF_DIBTransferFunc::TranslateScanline( | |
| 64 const uint8_t* src_buf, | |
| 65 std::vector<uint8_t>* dest_buf) const { | |
| 66 bool bSkip = false; | |
| 67 switch (m_pSrc->GetFormat()) { | |
| 68 case FXDIB_1bppRgb: { | |
| 69 int r0 = m_RampR[0]; | |
| 70 int g0 = m_RampG[0]; | |
| 71 int b0 = m_RampB[0]; | |
| 72 int r1 = m_RampR[255]; | |
| 73 int g1 = m_RampG[255]; | |
| 74 int b1 = m_RampB[255]; | |
| 75 int index = 0; | |
| 76 for (int i = 0; i < m_Width; i++) { | |
| 77 if (src_buf[i / 8] & (1 << (7 - i % 8))) { | |
| 78 (*dest_buf)[index++] = b1; | |
| 79 (*dest_buf)[index++] = g1; | |
| 80 (*dest_buf)[index++] = r1; | |
| 81 } else { | |
| 82 (*dest_buf)[index++] = b0; | |
| 83 (*dest_buf)[index++] = g0; | |
| 84 (*dest_buf)[index++] = r0; | |
| 85 } | |
| 86 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 87 index++; | |
| 88 #endif | |
| 89 } | |
| 90 break; | |
| 91 } | |
| 92 case FXDIB_1bppMask: { | |
| 93 int m0 = m_RampR[0]; | |
| 94 int m1 = m_RampR[255]; | |
| 95 int index = 0; | |
| 96 for (int i = 0; i < m_Width; i++) { | |
| 97 if (src_buf[i / 8] & (1 << (7 - i % 8))) | |
| 98 (*dest_buf)[index++] = m1; | |
| 99 else | |
| 100 (*dest_buf)[index++] = m0; | |
| 101 } | |
| 102 break; | |
| 103 } | |
| 104 case FXDIB_8bppRgb: { | |
| 105 FX_ARGB* pPal = m_pSrc->GetPalette(); | |
| 106 int index = 0; | |
| 107 for (int i = 0; i < m_Width; i++) { | |
| 108 if (pPal) { | |
| 109 FX_ARGB src_argb = pPal[*src_buf]; | |
| 110 (*dest_buf)[index++] = m_RampB[FXARGB_R(src_argb)]; | |
| 111 (*dest_buf)[index++] = m_RampG[FXARGB_G(src_argb)]; | |
| 112 (*dest_buf)[index++] = m_RampR[FXARGB_B(src_argb)]; | |
| 113 } else { | |
| 114 uint32_t src_byte = *src_buf; | |
| 115 (*dest_buf)[index++] = m_RampB[src_byte]; | |
| 116 (*dest_buf)[index++] = m_RampG[src_byte]; | |
| 117 (*dest_buf)[index++] = m_RampR[src_byte]; | |
| 118 } | |
| 119 src_buf++; | |
| 120 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 121 index++; | |
| 122 #endif | |
| 123 } | |
| 124 break; | |
| 125 } | |
| 126 case FXDIB_8bppMask: { | |
| 127 int index = 0; | |
| 128 for (int i = 0; i < m_Width; i++) { | |
| 129 (*dest_buf)[index++] = m_RampR[*(src_buf++)]; | |
| 130 } | |
| 131 break; | |
| 132 } | |
| 133 case FXDIB_Rgb: { | |
| 134 int index = 0; | |
| 135 for (int i = 0; i < m_Width; i++) { | |
| 136 (*dest_buf)[index++] = m_RampB[*(src_buf++)]; | |
| 137 (*dest_buf)[index++] = m_RampG[*(src_buf++)]; | |
| 138 (*dest_buf)[index++] = m_RampR[*(src_buf++)]; | |
| 139 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 140 index++; | |
| 141 #endif | |
| 142 } | |
| 143 break; | |
| 144 } | |
| 145 case FXDIB_Rgb32: | |
| 146 bSkip = true; | |
| 147 case FXDIB_Argb: { | |
| 148 int index = 0; | |
| 149 for (int i = 0; i < m_Width; i++) { | |
| 150 (*dest_buf)[index++] = m_RampB[*(src_buf++)]; | |
| 151 (*dest_buf)[index++] = m_RampG[*(src_buf++)]; | |
| 152 (*dest_buf)[index++] = m_RampR[*(src_buf++)]; | |
| 153 if (!bSkip) { | |
| 154 (*dest_buf)[index++] = *src_buf; | |
| 155 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 156 } else { | |
| 157 index++; | |
| 158 #endif | |
| 159 } | |
| 160 src_buf++; | |
| 161 } | |
| 162 break; | |
| 163 } | |
| 164 default: | |
| 165 break; | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 void CPDF_DIBTransferFunc::TranslateDownSamples(uint8_t* dest_buf, | |
| 170 const uint8_t* src_buf, | |
| 171 int pixels, | |
| 172 int Bpp) const { | |
| 173 if (Bpp == 8) { | |
| 174 for (int i = 0; i < pixels; i++) { | |
| 175 *dest_buf++ = m_RampR[*(src_buf++)]; | |
| 176 } | |
| 177 } else if (Bpp == 24) { | |
| 178 for (int i = 0; i < pixels; i++) { | |
| 179 *dest_buf++ = m_RampB[*(src_buf++)]; | |
| 180 *dest_buf++ = m_RampG[*(src_buf++)]; | |
| 181 *dest_buf++ = m_RampR[*(src_buf++)]; | |
| 182 } | |
| 183 } else { | |
| 184 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 185 if (!m_pSrc->HasAlpha()) { | |
| 186 for (int i = 0; i < pixels; i++) { | |
| 187 *dest_buf++ = m_RampB[*(src_buf++)]; | |
| 188 *dest_buf++ = m_RampG[*(src_buf++)]; | |
| 189 *dest_buf++ = m_RampR[*(src_buf++)]; | |
| 190 dest_buf++; | |
| 191 src_buf++; | |
| 192 } | |
| 193 } else { | |
| 194 #endif | |
| 195 for (int i = 0; i < pixels; i++) { | |
| 196 *dest_buf++ = m_RampB[*(src_buf++)]; | |
| 197 *dest_buf++ = m_RampG[*(src_buf++)]; | |
| 198 *dest_buf++ = m_RampR[*(src_buf++)]; | |
| 199 *dest_buf++ = *(src_buf++); | |
| 200 } | |
| 201 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
| 202 } | |
| 203 #endif | |
| 204 } | |
| 205 } | |
| 206 | |
| 207 CCodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder( | |
| 208 const uint8_t* src_buf, | |
| 209 uint32_t src_size, | |
| 210 int width, | |
| 211 int height, | |
| 212 int nComps, | |
| 213 int bpc, | |
| 214 const CPDF_Dictionary* pParams); | |
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Chromium Code Reviews
Issue 2551593002:
Rename fpdf_render_image and fpdf_render_text (Closed)
