diff options
Diffstat (limited to 'core/fxge/dib/fx_dib_main.cpp')
| -rw-r--r-- | core/fxge/dib/fx_dib_main.cpp | 1048 |
1 files changed, 0 insertions, 1048 deletions
diff --git a/core/fxge/dib/fx_dib_main.cpp b/core/fxge/dib/fx_dib_main.cpp index 2ea3eeab3e..f3716c36b1 100644 --- a/core/fxge/dib/fx_dib_main.cpp +++ b/core/fxge/dib/fx_dib_main.cpp @@ -6,18 +6,9 @@ #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] = { @@ -106,1045 +97,6 @@ uint32_t ArgbEncode(int a, FX_COLORREF 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() { } |