| // Copyright 2014 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/fxge/fx_dib.h" |
| |
| #include <limits.h> |
| |
| #include <algorithm> |
| #include <memory> |
| #include <utility> |
| |
| #include "core/fxcodec/fx_codec.h" |
| #include "core/fxcrt/cfx_maybe_owned.h" |
| #include "core/fxge/cfx_gemodule.h" |
| #include "core/fxge/dib/cfx_filtereddib.h" |
| #include "core/fxge/dib/dib_int.h" |
| #include "core/fxge/ge/cfx_cliprgn.h" |
| #include "third_party/base/ptr_util.h" |
| |
| const int16_t SDP_Table[513] = { |
| 256, 256, 256, 256, 256, 256, 256, 256, 256, 255, 255, 255, 255, 255, 255, |
| 254, 254, 254, 254, 253, 253, 253, 252, 252, 252, 251, 251, 251, 250, 250, |
| 249, 249, 249, 248, 248, 247, 247, 246, 246, 245, 244, 244, 243, 243, 242, |
| 242, 241, 240, 240, 239, 238, 238, 237, 236, 236, 235, 234, 233, 233, 232, |
| 231, 230, 230, 229, 228, 227, 226, 226, 225, 224, 223, 222, 221, 220, 219, |
| 218, 218, 217, 216, 215, 214, 213, 212, 211, 210, 209, 208, 207, 206, 205, |
| 204, 203, 202, 201, 200, 199, 198, 196, 195, 194, 193, 192, 191, 190, 189, |
| 188, 186, 185, 184, 183, 182, 181, 179, 178, 177, 176, 175, 173, 172, 171, |
| 170, 169, 167, 166, 165, 164, 162, 161, 160, 159, 157, 156, 155, 154, 152, |
| 151, 150, 149, 147, 146, 145, 143, 142, 141, 140, 138, 137, 136, 134, 133, |
| 132, 130, 129, 128, 126, 125, 124, 122, 121, 120, 119, 117, 116, 115, 113, |
| 112, 111, 109, 108, 107, 105, 104, 103, 101, 100, 99, 97, 96, 95, 93, |
| 92, 91, 89, 88, 87, 85, 84, 83, 81, 80, 79, 77, 76, 75, 73, |
| 72, 71, 69, 68, 67, 66, 64, 63, 62, 60, 59, 58, 57, 55, 54, |
| 53, 52, 50, 49, 48, 47, 45, 44, 43, 42, 40, 39, 38, 37, 36, |
| 34, 33, 32, 31, 30, 28, 27, 26, 25, 24, 23, 21, 20, 19, 18, |
| 17, 16, 15, 14, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, |
| 1, 0, 0, -1, -2, -3, -4, -5, -6, -7, -7, -8, -9, -10, -11, |
| -12, -12, -13, -14, -15, -15, -16, -17, -17, -18, -19, -19, -20, -21, -21, |
| -22, -22, -23, -24, -24, -25, -25, -26, -26, -27, -27, -27, -28, -28, -29, |
| -29, -30, -30, -30, -31, -31, -31, -32, -32, -32, -33, -33, -33, -33, -34, |
| -34, -34, -34, -35, -35, -35, -35, -35, -36, -36, -36, -36, -36, -36, -36, |
| -36, -36, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, |
| -37, -37, -37, -37, -37, -37, -37, -37, -36, -36, -36, -36, -36, -36, -36, |
| -36, -36, -35, -35, -35, -35, -35, -35, -34, -34, -34, -34, -34, -33, -33, |
| -33, -33, -33, -32, -32, -32, -32, -31, -31, -31, -31, -30, -30, -30, -30, |
| -29, -29, -29, -29, -28, -28, -28, -27, -27, -27, -27, -26, -26, -26, -25, |
| -25, -25, -24, -24, -24, -23, -23, -23, -22, -22, -22, -22, -21, -21, -21, |
| -20, -20, -20, -19, -19, -19, -18, -18, -18, -17, -17, -17, -16, -16, -16, |
| -15, -15, -15, -14, -14, -14, -13, -13, -13, -12, -12, -12, -11, -11, -11, |
| -10, -10, -10, -9, -9, -9, -9, -8, -8, -8, -7, -7, -7, -7, -6, |
| -6, -6, -6, -5, -5, -5, -5, -4, -4, -4, -4, -3, -3, -3, -3, |
| -3, -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, |
| }; |
| |
| FX_RECT FXDIB_SwapClipBox(FX_RECT& clip, |
| int width, |
| int height, |
| bool bFlipX, |
| bool bFlipY) { |
| FX_RECT rect; |
| if (bFlipY) { |
| rect.left = height - clip.top; |
| rect.right = height - clip.bottom; |
| } else { |
| rect.left = clip.top; |
| rect.right = clip.bottom; |
| } |
| if (bFlipX) { |
| rect.top = width - clip.left; |
| rect.bottom = width - clip.right; |
| } else { |
| rect.top = clip.left; |
| rect.bottom = clip.right; |
| } |
| rect.Normalize(); |
| return rect; |
| } |
| |
| void CmykDecode(uint32_t cmyk, int& c, int& m, int& y, int& k) { |
| c = FXSYS_GetCValue(cmyk); |
| m = FXSYS_GetMValue(cmyk); |
| y = FXSYS_GetYValue(cmyk); |
| k = FXSYS_GetKValue(cmyk); |
| } |
| |
| void ArgbDecode(uint32_t argb, int& a, int& r, int& g, int& b) { |
| a = FXARGB_A(argb); |
| r = FXARGB_R(argb); |
| g = FXARGB_G(argb); |
| b = FXARGB_B(argb); |
| } |
| |
| void ArgbDecode(uint32_t argb, int& a, FX_COLORREF& rgb) { |
| a = FXARGB_A(argb); |
| rgb = FXSYS_RGB(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb)); |
| } |
| |
| uint32_t ArgbEncode(int a, FX_COLORREF rgb) { |
| return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb), |
| FXSYS_GetBValue(rgb)); |
| } |
| |
| CFX_DIBitmap::CFX_DIBitmap() { |
| m_bExtBuf = false; |
| m_pBuffer = nullptr; |
| m_pPalette = nullptr; |
| #ifdef _SKIA_SUPPORT_PATHS_ |
| m_nFormat = Format::kCleared; |
| #endif |
| } |
| |
| #define _MAX_OOM_LIMIT_ 12000000 |
| bool CFX_DIBitmap::Create(int width, |
| int height, |
| FXDIB_Format format, |
| uint8_t* pBuffer, |
| int pitch) { |
| m_pBuffer = nullptr; |
| m_bpp = (uint8_t)format; |
| m_AlphaFlag = (uint8_t)(format >> 8); |
| m_Width = m_Height = m_Pitch = 0; |
| if (width <= 0 || height <= 0 || pitch < 0) { |
| return false; |
| } |
| if ((INT_MAX - 31) / width < (format & 0xff)) { |
| return false; |
| } |
| if (!pitch) { |
| pitch = (width * (format & 0xff) + 31) / 32 * 4; |
| } |
| if ((1 << 30) / pitch < height) { |
| return false; |
| } |
| if (pBuffer) { |
| m_pBuffer = pBuffer; |
| m_bExtBuf = true; |
| } else { |
| int size = pitch * height + 4; |
| int oomlimit = _MAX_OOM_LIMIT_; |
| if (oomlimit >= 0 && size >= oomlimit) { |
| m_pBuffer = FX_TryAlloc(uint8_t, size); |
| if (!m_pBuffer) { |
| return false; |
| } |
| } else { |
| m_pBuffer = FX_Alloc(uint8_t, size); |
| } |
| } |
| m_Width = width; |
| m_Height = height; |
| m_Pitch = pitch; |
| if (HasAlpha() && format != FXDIB_Argb) { |
| bool ret = true; |
| ret = BuildAlphaMask(); |
| if (!ret) { |
| if (!m_bExtBuf) { |
| FX_Free(m_pBuffer); |
| m_pBuffer = nullptr; |
| m_Width = m_Height = m_Pitch = 0; |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::Copy(const CFX_RetainPtr<CFX_DIBSource>& pSrc) { |
| if (m_pBuffer) |
| return false; |
| |
| if (!Create(pSrc->GetWidth(), pSrc->GetHeight(), pSrc->GetFormat())) |
| return false; |
| |
| SetPalette(pSrc->GetPalette()); |
| SetAlphaMask(pSrc->m_pAlphaMask); |
| for (int row = 0; row < pSrc->GetHeight(); row++) |
| FXSYS_memcpy(m_pBuffer + row * m_Pitch, pSrc->GetScanline(row), m_Pitch); |
| |
| return true; |
| } |
| |
| CFX_DIBitmap::~CFX_DIBitmap() { |
| if (!m_bExtBuf) |
| FX_Free(m_pBuffer); |
| |
| m_pBuffer = nullptr; |
| } |
| |
| uint8_t* CFX_DIBitmap::GetBuffer() const { |
| return m_pBuffer; |
| } |
| |
| const uint8_t* CFX_DIBitmap::GetScanline(int line) const { |
| return m_pBuffer ? m_pBuffer + line * m_Pitch : nullptr; |
| } |
| |
| void CFX_DIBitmap::TakeOver(CFX_RetainPtr<CFX_DIBitmap>&& pSrcBitmap) { |
| if (!m_bExtBuf) |
| FX_Free(m_pBuffer); |
| |
| m_pBuffer = pSrcBitmap->m_pBuffer; |
| m_pPalette = std::move(pSrcBitmap->m_pPalette); |
| m_pAlphaMask = pSrcBitmap->m_pAlphaMask; |
| pSrcBitmap->m_pBuffer = nullptr; |
| pSrcBitmap->m_pAlphaMask = nullptr; |
| m_bpp = pSrcBitmap->m_bpp; |
| m_bExtBuf = pSrcBitmap->m_bExtBuf; |
| m_AlphaFlag = pSrcBitmap->m_AlphaFlag; |
| m_Width = pSrcBitmap->m_Width; |
| m_Height = pSrcBitmap->m_Height; |
| m_Pitch = pSrcBitmap->m_Pitch; |
| } |
| |
| void CFX_DIBitmap::Clear(uint32_t color) { |
| if (!m_pBuffer) { |
| return; |
| } |
| switch (GetFormat()) { |
| case FXDIB_1bppMask: |
| FXSYS_memset(m_pBuffer, (color & 0xff000000) ? 0xff : 0, |
| m_Pitch * m_Height); |
| break; |
| case FXDIB_1bppRgb: { |
| int index = FindPalette(color); |
| FXSYS_memset(m_pBuffer, index ? 0xff : 0, m_Pitch * m_Height); |
| break; |
| } |
| case FXDIB_8bppMask: |
| FXSYS_memset(m_pBuffer, color >> 24, m_Pitch * m_Height); |
| break; |
| case FXDIB_8bppRgb: { |
| int index = FindPalette(color); |
| FXSYS_memset(m_pBuffer, index, m_Pitch * m_Height); |
| break; |
| } |
| case FXDIB_Rgb: |
| case FXDIB_Rgba: { |
| int a, r, g, b; |
| ArgbDecode(color, a, r, g, b); |
| if (r == g && g == b) { |
| FXSYS_memset(m_pBuffer, r, m_Pitch * m_Height); |
| } else { |
| int byte_pos = 0; |
| for (int col = 0; col < m_Width; col++) { |
| m_pBuffer[byte_pos++] = b; |
| m_pBuffer[byte_pos++] = g; |
| m_pBuffer[byte_pos++] = r; |
| } |
| for (int row = 1; row < m_Height; row++) { |
| FXSYS_memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch); |
| } |
| } |
| break; |
| } |
| case FXDIB_Rgb32: |
| case FXDIB_Argb: { |
| color = IsCmykImage() ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); |
| #ifdef _SKIA_SUPPORT_ |
| if (FXDIB_Rgb32 == GetFormat() && !IsCmykImage()) { |
| color |= 0xFF000000; |
| } |
| #endif |
| for (int i = 0; i < m_Width; i++) { |
| ((uint32_t*)m_pBuffer)[i] = color; |
| } |
| for (int row = 1; row < m_Height; row++) { |
| FXSYS_memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch); |
| } |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| bool CFX_DIBitmap::TransferBitmap( |
| int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top) { |
| if (!m_pBuffer) |
| return false; |
| |
| GetOverlapRect(dest_left, dest_top, width, height, pSrcBitmap->GetWidth(), |
| pSrcBitmap->GetHeight(), src_left, src_top, nullptr); |
| if (width == 0 || height == 0) |
| return true; |
| |
| FXDIB_Format dest_format = GetFormat(); |
| FXDIB_Format src_format = pSrcBitmap->GetFormat(); |
| if (dest_format == src_format) { |
| if (GetBPP() == 1) { |
| for (int row = 0; row < height; row++) { |
| uint8_t* dest_scan = m_pBuffer + (dest_top + row) * m_Pitch; |
| const uint8_t* src_scan = pSrcBitmap->GetScanline(src_top + row); |
| for (int col = 0; col < width; col++) { |
| if (src_scan[(src_left + col) / 8] & |
| (1 << (7 - (src_left + col) % 8))) { |
| dest_scan[(dest_left + col) / 8] |= 1 |
| << (7 - (dest_left + col) % 8); |
| } else { |
| dest_scan[(dest_left + col) / 8] &= |
| ~(1 << (7 - (dest_left + col) % 8)); |
| } |
| } |
| } |
| } else { |
| int Bpp = GetBPP() / 8; |
| for (int row = 0; row < height; row++) { |
| uint8_t* dest_scan = |
| m_pBuffer + (dest_top + row) * m_Pitch + dest_left * Bpp; |
| const uint8_t* src_scan = |
| pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp; |
| FXSYS_memcpy(dest_scan, src_scan, width * Bpp); |
| } |
| } |
| } else { |
| if (m_pPalette) |
| return false; |
| |
| if (m_bpp == 8) |
| dest_format = FXDIB_8bppMask; |
| |
| uint8_t* dest_buf = |
| m_pBuffer + dest_top * m_Pitch + dest_left * GetBPP() / 8; |
| std::unique_ptr<uint32_t, FxFreeDeleter> d_plt; |
| if (!ConvertBuffer(dest_format, dest_buf, m_Pitch, width, height, |
| pSrcBitmap, src_left, src_top, &d_plt)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::TransferMask(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pMask, |
| uint32_t color, |
| int src_left, |
| int src_top, |
| int alpha_flag, |
| void* pIccTransform) { |
| if (!m_pBuffer) { |
| return false; |
| } |
| ASSERT(HasAlpha() && (m_bpp >= 24)); |
| ASSERT(pMask->IsAlphaMask()); |
| if (!HasAlpha() || !pMask->IsAlphaMask() || m_bpp < 24) { |
| return false; |
| } |
| GetOverlapRect(dest_left, dest_top, width, height, pMask->GetWidth(), |
| pMask->GetHeight(), src_left, src_top, nullptr); |
| if (width == 0 || height == 0) { |
| return true; |
| } |
| int src_bpp = pMask->GetBPP(); |
| int alpha; |
| uint32_t dst_color; |
| if (alpha_flag >> 8) { |
| alpha = alpha_flag & 0xff; |
| dst_color = FXCMYK_TODIB(color); |
| } else { |
| alpha = FXARGB_A(color); |
| dst_color = FXARGB_TODIB(color); |
| } |
| uint8_t* color_p = (uint8_t*)&dst_color; |
| if (pIccTransform && CFX_GEModule::Get()->GetCodecModule() && |
| CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) { |
| CCodec_IccModule* pIccModule = |
| CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); |
| pIccModule->TranslateScanline(pIccTransform, color_p, color_p, 1); |
| } else { |
| if (alpha_flag >> 8 && !IsCmykImage()) { |
| AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color), |
| FXSYS_GetYValue(color), FXSYS_GetKValue(color), |
| color_p[2], color_p[1], color_p[0]); |
| } else if (!(alpha_flag >> 8) && IsCmykImage()) { |
| return false; |
| } |
| } |
| if (!IsCmykImage()) { |
| color_p[3] = (uint8_t)alpha; |
| } |
| if (GetFormat() == FXDIB_Argb) { |
| for (int row = 0; row < height; row++) { |
| uint32_t* dest_pos = |
| (uint32_t*)(m_pBuffer + (dest_top + row) * m_Pitch + dest_left * 4); |
| const uint8_t* src_scan = pMask->GetScanline(src_top + row); |
| if (src_bpp == 1) { |
| for (int col = 0; col < width; col++) { |
| int src_bitpos = src_left + col; |
| if (src_scan[src_bitpos / 8] & (1 << (7 - src_bitpos % 8))) { |
| *dest_pos = dst_color; |
| } else { |
| *dest_pos = 0; |
| } |
| dest_pos++; |
| } |
| } else { |
| src_scan += src_left; |
| dst_color = FXARGB_TODIB(dst_color); |
| dst_color &= 0xffffff; |
| for (int col = 0; col < width; col++) { |
| FXARGB_SETDIB(dest_pos++, |
| dst_color | ((alpha * (*src_scan++) / 255) << 24)); |
| } |
| } |
| } |
| } else { |
| int comps = m_bpp / 8; |
| for (int row = 0; row < height; row++) { |
| uint8_t* dest_color_pos = |
| m_pBuffer + (dest_top + row) * m_Pitch + dest_left * comps; |
| uint8_t* dest_alpha_pos = |
| (uint8_t*)m_pAlphaMask->GetScanline(dest_top + row) + dest_left; |
| const uint8_t* src_scan = pMask->GetScanline(src_top + row); |
| if (src_bpp == 1) { |
| for (int col = 0; col < width; col++) { |
| int src_bitpos = src_left + col; |
| if (src_scan[src_bitpos / 8] & (1 << (7 - src_bitpos % 8))) { |
| FXSYS_memcpy(dest_color_pos, color_p, comps); |
| *dest_alpha_pos = 0xff; |
| } else { |
| FXSYS_memset(dest_color_pos, 0, comps); |
| *dest_alpha_pos = 0; |
| } |
| dest_color_pos += comps; |
| dest_alpha_pos++; |
| } |
| } else { |
| src_scan += src_left; |
| for (int col = 0; col < width; col++) { |
| FXSYS_memcpy(dest_color_pos, color_p, comps); |
| dest_color_pos += comps; |
| *dest_alpha_pos++ = (alpha * (*src_scan++) / 255); |
| } |
| } |
| } |
| } |
| return true; |
| } |
| |
| const int g_ChannelOffset[] = {0, 2, 1, 0, 0, 1, 2, 3, 3}; |
| bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| FXDIB_Channel srcChannel) { |
| if (!m_pBuffer) |
| return false; |
| |
| CFX_RetainPtr<CFX_DIBSource> pSrcClone = pSrcBitmap; |
| int srcOffset; |
| if (srcChannel == FXDIB_Alpha) { |
| if (!pSrcBitmap->HasAlpha() && !pSrcBitmap->IsAlphaMask()) |
| return false; |
| |
| if (pSrcBitmap->GetBPP() == 1) { |
| pSrcClone = pSrcBitmap->CloneConvert(FXDIB_8bppMask); |
| if (!pSrcClone) |
| return false; |
| } |
| srcOffset = pSrcBitmap->GetFormat() == FXDIB_Argb ? 3 : 0; |
| } else { |
| if (pSrcBitmap->IsAlphaMask()) |
| return false; |
| |
| if (pSrcBitmap->GetBPP() < 24) { |
| if (pSrcBitmap->IsCmykImage()) { |
| pSrcClone = pSrcBitmap->CloneConvert(static_cast<FXDIB_Format>( |
| (pSrcBitmap->GetFormat() & 0xff00) | 0x20)); |
| } else { |
| pSrcClone = pSrcBitmap->CloneConvert(static_cast<FXDIB_Format>( |
| (pSrcBitmap->GetFormat() & 0xff00) | 0x18)); |
| } |
| if (!pSrcClone) |
| return false; |
| } |
| srcOffset = g_ChannelOffset[srcChannel]; |
| } |
| int destOffset = 0; |
| if (destChannel == FXDIB_Alpha) { |
| if (IsAlphaMask()) { |
| if (!ConvertFormat(FXDIB_8bppMask)) |
| return false; |
| } else { |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) |
| return false; |
| |
| if (GetFormat() == FXDIB_Argb) |
| destOffset = 3; |
| } |
| } else { |
| if (IsAlphaMask()) |
| return false; |
| |
| if (GetBPP() < 24) { |
| if (HasAlpha()) { |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) |
| return false; |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) { |
| #else |
| } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb)) { |
| #endif |
| return false; |
| } |
| } |
| destOffset = g_ChannelOffset[destChannel]; |
| } |
| if (srcChannel == FXDIB_Alpha && pSrcClone->m_pAlphaMask) { |
| CFX_RetainPtr<CFX_DIBSource> pAlphaMask = pSrcClone->m_pAlphaMask; |
| if (pSrcClone->GetWidth() != m_Width || |
| pSrcClone->GetHeight() != m_Height) { |
| if (pAlphaMask) { |
| pAlphaMask = pAlphaMask->StretchTo(m_Width, m_Height); |
| if (!pAlphaMask) |
| return false; |
| } |
| } |
| pSrcClone = std::move(pAlphaMask); |
| srcOffset = 0; |
| } else if (pSrcClone->GetWidth() != m_Width || |
| pSrcClone->GetHeight() != m_Height) { |
| CFX_RetainPtr<CFX_DIBitmap> pSrcMatched = |
| pSrcClone->StretchTo(m_Width, m_Height); |
| if (!pSrcMatched) |
| return false; |
| |
| pSrcClone = std::move(pSrcMatched); |
| } |
| CFX_RetainPtr<CFX_DIBitmap> pDst(this); |
| if (destChannel == FXDIB_Alpha && m_pAlphaMask) { |
| pDst = m_pAlphaMask; |
| destOffset = 0; |
| } |
| int srcBytes = pSrcClone->GetBPP() / 8; |
| int destBytes = pDst->GetBPP() / 8; |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* dest_pos = (uint8_t*)pDst->GetScanline(row) + destOffset; |
| const uint8_t* src_pos = pSrcClone->GetScanline(row) + srcOffset; |
| for (int col = 0; col < m_Width; col++) { |
| *dest_pos = *src_pos; |
| dest_pos += destBytes; |
| src_pos += srcBytes; |
| } |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, int value) { |
| if (!m_pBuffer) { |
| return false; |
| } |
| int destOffset; |
| if (destChannel == FXDIB_Alpha) { |
| if (IsAlphaMask()) { |
| if (!ConvertFormat(FXDIB_8bppMask)) { |
| return false; |
| } |
| destOffset = 0; |
| } else { |
| destOffset = 0; |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) { |
| return false; |
| } |
| if (GetFormat() == FXDIB_Argb) { |
| destOffset = 3; |
| } |
| } |
| } else { |
| if (IsAlphaMask()) { |
| return false; |
| } |
| if (GetBPP() < 24) { |
| if (HasAlpha()) { |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) { |
| return false; |
| } |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb)) { |
| #else |
| } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) { |
| #endif |
| return false; |
| } |
| } |
| destOffset = g_ChannelOffset[destChannel]; |
| } |
| int Bpp = GetBPP() / 8; |
| if (Bpp == 1) { |
| FXSYS_memset(m_pBuffer, value, m_Height * m_Pitch); |
| return true; |
| } |
| if (destChannel == FXDIB_Alpha && m_pAlphaMask) { |
| FXSYS_memset(m_pAlphaMask->GetBuffer(), value, |
| m_pAlphaMask->GetHeight() * m_pAlphaMask->GetPitch()); |
| return true; |
| } |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scan_line = m_pBuffer + row * m_Pitch + destOffset; |
| for (int col = 0; col < m_Width; col++) { |
| *scan_line = value; |
| scan_line += Bpp; |
| } |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::MultiplyAlpha( |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap) { |
| if (!m_pBuffer) |
| return false; |
| |
| ASSERT(pSrcBitmap->IsAlphaMask()); |
| if (!pSrcBitmap->IsAlphaMask()) |
| return false; |
| |
| if (!IsAlphaMask() && !HasAlpha()) |
| return LoadChannel(FXDIB_Alpha, pSrcBitmap, FXDIB_Alpha); |
| |
| CFX_RetainPtr<CFX_DIBitmap> pSrcClone = pSrcBitmap.As<CFX_DIBitmap>(); |
| if (pSrcBitmap->GetWidth() != m_Width || |
| pSrcBitmap->GetHeight() != m_Height) { |
| pSrcClone = pSrcBitmap->StretchTo(m_Width, m_Height); |
| if (!pSrcClone) |
| return false; |
| } |
| if (IsAlphaMask()) { |
| if (!ConvertFormat(FXDIB_8bppMask)) |
| return false; |
| |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* dest_scan = m_pBuffer + m_Pitch * row; |
| uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row; |
| if (pSrcClone->GetBPP() == 1) { |
| for (int col = 0; col < m_Width; col++) { |
| if (!((1 << (7 - col % 8)) & src_scan[col / 8])) |
| dest_scan[col] = 0; |
| } |
| } else { |
| for (int col = 0; col < m_Width; col++) { |
| *dest_scan = (*dest_scan) * src_scan[col] / 255; |
| dest_scan++; |
| } |
| } |
| } |
| } else { |
| if (GetFormat() == FXDIB_Argb) { |
| if (pSrcClone->GetBPP() == 1) |
| return false; |
| |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* dest_scan = m_pBuffer + m_Pitch * row + 3; |
| uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row; |
| for (int col = 0; col < m_Width; col++) { |
| *dest_scan = (*dest_scan) * src_scan[col] / 255; |
| dest_scan += 4; |
| } |
| } |
| } else { |
| m_pAlphaMask->MultiplyAlpha(pSrcClone); |
| } |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { |
| if (!m_pBuffer) { |
| return false; |
| } |
| switch (GetFormat()) { |
| case FXDIB_1bppRgb: { |
| if (!m_pPalette) |
| return false; |
| |
| uint8_t gray[2]; |
| for (int i = 0; i < 2; i++) { |
| int r = static_cast<uint8_t>(m_pPalette.get()[i] >> 16); |
| int g = static_cast<uint8_t>(m_pPalette.get()[i] >> 8); |
| int b = static_cast<uint8_t>(m_pPalette.get()[i]); |
| gray[i] = static_cast<uint8_t>(FXRGB2GRAY(r, g, b)); |
| } |
| auto pMask = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) |
| return false; |
| |
| FXSYS_memset(pMask->GetBuffer(), gray[0], pMask->GetPitch() * m_Height); |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* src_pos = m_pBuffer + row * m_Pitch; |
| uint8_t* dest_pos = (uint8_t*)pMask->GetScanline(row); |
| for (int col = 0; col < m_Width; col++) { |
| if (src_pos[col / 8] & (1 << (7 - col % 8))) { |
| *dest_pos = gray[1]; |
| } |
| dest_pos++; |
| } |
| } |
| TakeOver(std::move(pMask)); |
| break; |
| } |
| case FXDIB_8bppRgb: { |
| if (!m_pPalette) |
| return false; |
| |
| uint8_t gray[256]; |
| for (int i = 0; i < 256; i++) { |
| int r = static_cast<uint8_t>(m_pPalette.get()[i] >> 16); |
| int g = static_cast<uint8_t>(m_pPalette.get()[i] >> 8); |
| int b = static_cast<uint8_t>(m_pPalette.get()[i]); |
| gray[i] = static_cast<uint8_t>(FXRGB2GRAY(r, g, b)); |
| } |
| auto pMask = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) |
| return false; |
| |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); |
| uint8_t* src_pos = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col++) { |
| *dest_pos++ = gray[*src_pos++]; |
| } |
| } |
| TakeOver(std::move(pMask)); |
| break; |
| } |
| case FXDIB_Rgb: { |
| auto pMask = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) |
| return false; |
| |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* src_pos = m_pBuffer + row * m_Pitch; |
| uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); |
| for (int col = 0; col < m_Width; col++) { |
| *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos); |
| src_pos += 3; |
| } |
| } |
| TakeOver(std::move(pMask)); |
| break; |
| } |
| case FXDIB_Rgb32: { |
| auto pMask = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) |
| return false; |
| |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* src_pos = m_pBuffer + row * m_Pitch; |
| uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); |
| for (int col = 0; col < m_Width; col++) { |
| *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos); |
| src_pos += 4; |
| } |
| } |
| TakeOver(std::move(pMask)); |
| break; |
| } |
| default: |
| return false; |
| } |
| return true; |
| } |
| |
| bool CFX_DIBitmap::MultiplyAlpha(int alpha) { |
| if (!m_pBuffer) { |
| return false; |
| } |
| switch (GetFormat()) { |
| case FXDIB_1bppMask: |
| if (!ConvertFormat(FXDIB_8bppMask)) { |
| return false; |
| } |
| MultiplyAlpha(alpha); |
| break; |
| case FXDIB_8bppMask: { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scan_line = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col++) { |
| scan_line[col] = scan_line[col] * alpha / 255; |
| } |
| } |
| break; |
| } |
| case FXDIB_Argb: { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scan_line = m_pBuffer + row * m_Pitch + 3; |
| for (int col = 0; col < m_Width; col++) { |
| *scan_line = (*scan_line) * alpha / 255; |
| scan_line += 4; |
| } |
| } |
| break; |
| } |
| default: |
| if (HasAlpha()) { |
| m_pAlphaMask->MultiplyAlpha(alpha); |
| } else if (IsCmykImage()) { |
| if (!ConvertFormat((FXDIB_Format)(GetFormat() | 0x0200))) { |
| return false; |
| } |
| m_pAlphaMask->MultiplyAlpha(alpha); |
| } else { |
| if (!ConvertFormat(FXDIB_Argb)) { |
| return false; |
| } |
| MultiplyAlpha(alpha); |
| } |
| break; |
| } |
| return true; |
| } |
| |
| uint32_t CFX_DIBitmap::GetPixel(int x, int y) const { |
| if (!m_pBuffer) { |
| return 0; |
| } |
| uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8; |
| switch (GetFormat()) { |
| case FXDIB_1bppMask: { |
| if ((*pos) & (1 << (7 - x % 8))) { |
| return 0xff000000; |
| } |
| return 0; |
| } |
| case FXDIB_1bppRgb: { |
| if ((*pos) & (1 << (7 - x % 8))) { |
| return m_pPalette ? m_pPalette.get()[1] : 0xffffffff; |
| } |
| return m_pPalette ? m_pPalette.get()[0] : 0xff000000; |
| } |
| case FXDIB_8bppMask: |
| return (*pos) << 24; |
| case FXDIB_8bppRgb: |
| return m_pPalette ? m_pPalette.get()[*pos] |
| : (0xff000000 | ((*pos) * 0x10101)); |
| case FXDIB_Rgb: |
| case FXDIB_Rgba: |
| case FXDIB_Rgb32: |
| return FXARGB_GETDIB(pos) | 0xff000000; |
| case FXDIB_Argb: |
| return FXARGB_GETDIB(pos); |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| void CFX_DIBitmap::SetPixel(int x, int y, uint32_t color) { |
| if (!m_pBuffer) { |
| return; |
| } |
| if (x < 0 || x >= m_Width || y < 0 || y >= m_Height) { |
| return; |
| } |
| uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8; |
| switch (GetFormat()) { |
| case FXDIB_1bppMask: |
| if (color >> 24) { |
| *pos |= 1 << (7 - x % 8); |
| } else { |
| *pos &= ~(1 << (7 - x % 8)); |
| } |
| break; |
| case FXDIB_1bppRgb: |
| if (m_pPalette) { |
| if (color == m_pPalette.get()[1]) { |
| *pos |= 1 << (7 - x % 8); |
| } else { |
| *pos &= ~(1 << (7 - x % 8)); |
| } |
| } else { |
| if (color == 0xffffffff) { |
| *pos |= 1 << (7 - x % 8); |
| } else { |
| *pos &= ~(1 << (7 - x % 8)); |
| } |
| } |
| break; |
| case FXDIB_8bppMask: |
| *pos = (uint8_t)(color >> 24); |
| break; |
| case FXDIB_8bppRgb: { |
| if (m_pPalette) { |
| for (int i = 0; i < 256; i++) { |
| if (m_pPalette.get()[i] == color) { |
| *pos = (uint8_t)i; |
| return; |
| } |
| } |
| *pos = 0; |
| } else { |
| *pos = FXRGB2GRAY(FXARGB_R(color), FXARGB_G(color), FXARGB_B(color)); |
| } |
| break; |
| } |
| case FXDIB_Rgb: |
| case FXDIB_Rgb32: { |
| int alpha = FXARGB_A(color); |
| pos[0] = (FXARGB_B(color) * alpha + pos[0] * (255 - alpha)) / 255; |
| pos[1] = (FXARGB_G(color) * alpha + pos[1] * (255 - alpha)) / 255; |
| pos[2] = (FXARGB_R(color) * alpha + pos[2] * (255 - alpha)) / 255; |
| break; |
| } |
| case FXDIB_Rgba: { |
| pos[0] = FXARGB_B(color); |
| pos[1] = FXARGB_G(color); |
| pos[2] = FXARGB_R(color); |
| break; |
| } |
| case FXDIB_Argb: |
| FXARGB_SETDIB(pos, color); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| void CFX_DIBitmap::DownSampleScanline(int line, |
| uint8_t* dest_scan, |
| int dest_bpp, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const { |
| if (!m_pBuffer) { |
| return; |
| } |
| int src_Bpp = m_bpp / 8; |
| uint8_t* scanline = m_pBuffer + line * m_Pitch; |
| if (src_Bpp == 0) { |
| for (int i = 0; i < clip_width; i++) { |
| uint32_t dest_x = clip_left + i; |
| uint32_t src_x = dest_x * m_Width / dest_width; |
| if (bFlipX) { |
| src_x = m_Width - src_x - 1; |
| } |
| src_x %= m_Width; |
| dest_scan[i] = (scanline[src_x / 8] & (1 << (7 - src_x % 8))) ? 255 : 0; |
| } |
| } else if (src_Bpp == 1) { |
| for (int i = 0; i < clip_width; i++) { |
| uint32_t dest_x = clip_left + i; |
| uint32_t src_x = dest_x * m_Width / dest_width; |
| if (bFlipX) { |
| src_x = m_Width - src_x - 1; |
| } |
| src_x %= m_Width; |
| int dest_pos = i; |
| if (m_pPalette) { |
| if (!IsCmykImage()) { |
| dest_pos *= 3; |
| FX_ARGB argb = m_pPalette.get()[scanline[src_x]]; |
| dest_scan[dest_pos] = FXARGB_B(argb); |
| dest_scan[dest_pos + 1] = FXARGB_G(argb); |
| dest_scan[dest_pos + 2] = FXARGB_R(argb); |
| } else { |
| dest_pos *= 4; |
| FX_CMYK cmyk = m_pPalette.get()[scanline[src_x]]; |
| dest_scan[dest_pos] = FXSYS_GetCValue(cmyk); |
| dest_scan[dest_pos + 1] = FXSYS_GetMValue(cmyk); |
| dest_scan[dest_pos + 2] = FXSYS_GetYValue(cmyk); |
| dest_scan[dest_pos + 3] = FXSYS_GetKValue(cmyk); |
| } |
| } else { |
| dest_scan[dest_pos] = scanline[src_x]; |
| } |
| } |
| } else { |
| for (int i = 0; i < clip_width; i++) { |
| uint32_t dest_x = clip_left + i; |
| uint32_t src_x = |
| bFlipX ? (m_Width - dest_x * m_Width / dest_width - 1) * src_Bpp |
| : (dest_x * m_Width / dest_width) * src_Bpp; |
| src_x %= m_Width * src_Bpp; |
| int dest_pos = i * src_Bpp; |
| for (int b = 0; b < src_Bpp; b++) { |
| dest_scan[dest_pos + b] = scanline[src_x + b]; |
| } |
| } |
| } |
| } |
| |
| // TODO(weili): Split this function into two for handling CMYK and RGB |
| // colors separately. |
| bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { |
| ASSERT(!IsAlphaMask()); |
| if (!m_pBuffer || IsAlphaMask()) { |
| return false; |
| } |
| // Values used for CMYK colors. |
| int fc = 0; |
| int fm = 0; |
| int fy = 0; |
| int fk = 0; |
| int bc = 0; |
| int bm = 0; |
| int by = 0; |
| int bk = 0; |
| // Values used for RGB colors. |
| int fr = 0; |
| int fg = 0; |
| int fb = 0; |
| int br = 0; |
| int bg = 0; |
| int bb = 0; |
| bool isCmykImage = IsCmykImage(); |
| if (isCmykImage) { |
| fc = FXSYS_GetCValue(forecolor); |
| fm = FXSYS_GetMValue(forecolor); |
| fy = FXSYS_GetYValue(forecolor); |
| fk = FXSYS_GetKValue(forecolor); |
| bc = FXSYS_GetCValue(backcolor); |
| bm = FXSYS_GetMValue(backcolor); |
| by = FXSYS_GetYValue(backcolor); |
| bk = FXSYS_GetKValue(backcolor); |
| } else { |
| fr = FXSYS_GetRValue(forecolor); |
| fg = FXSYS_GetGValue(forecolor); |
| fb = FXSYS_GetBValue(forecolor); |
| br = FXSYS_GetRValue(backcolor); |
| bg = FXSYS_GetGValue(backcolor); |
| bb = FXSYS_GetBValue(backcolor); |
| } |
| if (m_bpp <= 8) { |
| if (isCmykImage) { |
| if (forecolor == 0xff && backcolor == 0 && !m_pPalette) { |
| return true; |
| } |
| } else if (forecolor == 0 && backcolor == 0xffffff && !m_pPalette) { |
| return true; |
| } |
| if (!m_pPalette) { |
| BuildPalette(); |
| } |
| int size = 1 << m_bpp; |
| if (isCmykImage) { |
| for (int i = 0; i < size; i++) { |
| uint8_t b, g, r; |
| AdobeCMYK_to_sRGB1(FXSYS_GetCValue(m_pPalette.get()[i]), |
| FXSYS_GetMValue(m_pPalette.get()[i]), |
| FXSYS_GetYValue(m_pPalette.get()[i]), |
| FXSYS_GetKValue(m_pPalette.get()[i]), r, g, b); |
| int gray = 255 - FXRGB2GRAY(r, g, b); |
| m_pPalette.get()[i] = CmykEncode( |
| bc + (fc - bc) * gray / 255, bm + (fm - bm) * gray / 255, |
| by + (fy - by) * gray / 255, bk + (fk - bk) * gray / 255); |
| } |
| } else { |
| for (int i = 0; i < size; i++) { |
| int gray = FXRGB2GRAY(FXARGB_R(m_pPalette.get()[i]), |
| FXARGB_G(m_pPalette.get()[i]), |
| FXARGB_B(m_pPalette.get()[i])); |
| m_pPalette.get()[i] = FXARGB_MAKE(0xff, br + (fr - br) * gray / 255, |
| bg + (fg - bg) * gray / 255, |
| bb + (fb - bb) * gray / 255); |
| } |
| } |
| return true; |
| } |
| if (isCmykImage) { |
| if (forecolor == 0xff && backcolor == 0x00) { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scanline = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col++) { |
| uint8_t b, g, r; |
| AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3], |
| r, g, b); |
| *scanline++ = 0; |
| *scanline++ = 0; |
| *scanline++ = 0; |
| *scanline++ = 255 - FXRGB2GRAY(r, g, b); |
| } |
| } |
| return true; |
| } |
| } else if (forecolor == 0 && backcolor == 0xffffff) { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scanline = m_pBuffer + row * m_Pitch; |
| int gap = m_bpp / 8 - 2; |
| for (int col = 0; col < m_Width; col++) { |
| int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]); |
| *scanline++ = gray; |
| *scanline++ = gray; |
| *scanline = gray; |
| scanline += gap; |
| } |
| } |
| return true; |
| } |
| if (isCmykImage) { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scanline = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col++) { |
| uint8_t b, g, r; |
| AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3], |
| r, g, b); |
| int gray = 255 - FXRGB2GRAY(r, g, b); |
| *scanline++ = bc + (fc - bc) * gray / 255; |
| *scanline++ = bm + (fm - bm) * gray / 255; |
| *scanline++ = by + (fy - by) * gray / 255; |
| *scanline++ = bk + (fk - bk) * gray / 255; |
| } |
| } |
| } else { |
| for (int row = 0; row < m_Height; row++) { |
| uint8_t* scanline = m_pBuffer + row * m_Pitch; |
| int gap = m_bpp / 8 - 2; |
| for (int col = 0; col < m_Width; col++) { |
| int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]); |
| *scanline++ = bb + (fb - bb) * gray / 255; |
| *scanline++ = bg + (fg - bg) * gray / 255; |
| *scanline = br + (fr - br) * gray / 255; |
| scanline += gap; |
| } |
| } |
| } |
| return true; |
| } |
| |
| CFX_DIBExtractor::CFX_DIBExtractor(const CFX_RetainPtr<CFX_DIBSource>& pSrc) { |
| if (pSrc->GetBuffer()) { |
| CFX_RetainPtr<CFX_DIBSource> pOldSrc(pSrc); |
| m_pBitmap = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!m_pBitmap->Create(pOldSrc->GetWidth(), pOldSrc->GetHeight(), |
| pOldSrc->GetFormat(), pOldSrc->GetBuffer())) { |
| m_pBitmap.Reset(); |
| return; |
| } |
| m_pBitmap->SetPalette(pOldSrc->GetPalette()); |
| m_pBitmap->SetAlphaMask(pOldSrc->m_pAlphaMask); |
| } else { |
| m_pBitmap = pSrc->Clone(); |
| } |
| } |
| |
| CFX_DIBExtractor::~CFX_DIBExtractor() {} |
| |
| CFX_BitmapStorer::CFX_BitmapStorer() { |
| } |
| |
| CFX_BitmapStorer::~CFX_BitmapStorer() { |
| } |
| |
| CFX_RetainPtr<CFX_DIBitmap> CFX_BitmapStorer::Detach() { |
| return std::move(m_pBitmap); |
| } |
| |
| void CFX_BitmapStorer::Replace(CFX_RetainPtr<CFX_DIBitmap>&& pBitmap) { |
| m_pBitmap = std::move(pBitmap); |
| } |
| |
| void CFX_BitmapStorer::ComposeScanline(int line, |
| const uint8_t* scanline, |
| const uint8_t* scan_extra_alpha) { |
| uint8_t* dest_buf = const_cast<uint8_t*>(m_pBitmap->GetScanline(line)); |
| uint8_t* dest_alpha_buf = |
| m_pBitmap->m_pAlphaMask |
| ? const_cast<uint8_t*>(m_pBitmap->m_pAlphaMask->GetScanline(line)) |
| : nullptr; |
| if (dest_buf) |
| FXSYS_memcpy(dest_buf, scanline, m_pBitmap->GetPitch()); |
| |
| if (dest_alpha_buf) { |
| FXSYS_memcpy(dest_alpha_buf, scan_extra_alpha, |
| m_pBitmap->m_pAlphaMask->GetPitch()); |
| } |
| } |
| |
| bool CFX_BitmapStorer::SetInfo(int width, |
| int height, |
| FXDIB_Format src_format, |
| uint32_t* pSrcPalette) { |
| auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!pBitmap->Create(width, height, src_format)) |
| return false; |
| |
| if (pSrcPalette) |
| pBitmap->SetPalette(pSrcPalette); |
| |
| m_pBitmap = std::move(pBitmap); |
| return true; |
| } |
