diff options
Diffstat (limited to 'core/fxge/dib/fx_dib_main.cpp')
| -rw-r--r-- | core/fxge/dib/fx_dib_main.cpp | 1745 |
1 files changed, 1745 insertions, 0 deletions
diff --git a/core/fxge/dib/fx_dib_main.cpp b/core/fxge/dib/fx_dib_main.cpp new file mode 100644 index 0000000000..8ce20568df --- /dev/null +++ b/core/fxge/dib/fx_dib_main.cpp @@ -0,0 +1,1745 @@ +// 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/include/fxge/fx_dib.h" + +#include <limits.h> + +#include "core/fxge/dib/dib_int.h" +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_ge.h" + +FX_BOOL ConvertBuffer(FXDIB_Format dest_format, + uint8_t* dest_buf, + int dest_pitch, + int width, + int height, + const CFX_DIBSource* pSrcBitmap, + int src_left, + int src_top, + FX_DWORD*& pal, + void* pIccTransform); +void CmykDecode(FX_DWORD 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(FX_DWORD 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(FX_DWORD argb, int& a, FX_COLORREF& rgb) { + a = FXARGB_A(argb); + rgb = FXSYS_RGB(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb)); +} +FX_DWORD ArgbEncode(int a, FX_COLORREF rgb) { + return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb), + FXSYS_GetBValue(rgb)); +} + +CFX_DIBSource::CFX_DIBSource() { + m_bpp = 0; + m_AlphaFlag = 0; + m_Width = m_Height = 0; + m_Pitch = 0; + m_pPalette = NULL; + m_pAlphaMask = NULL; +} + +CFX_DIBSource::~CFX_DIBSource() { + FX_Free(m_pPalette); + delete m_pAlphaMask; +} + +uint8_t* CFX_DIBSource::GetBuffer() const { + return NULL; +} + +FX_BOOL CFX_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const { + return FALSE; +} + +CFX_DIBitmap::CFX_DIBitmap() { + m_bExtBuf = FALSE; + m_pBuffer = NULL; + m_pPalette = NULL; +} + +#define _MAX_OOM_LIMIT_ 12000000 +FX_BOOL CFX_DIBitmap::Create(int width, + int height, + FXDIB_Format format, + uint8_t* pBuffer, + int pitch) { + m_pBuffer = NULL; + 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) { + FX_BOOL ret = TRUE; + ret = BuildAlphaMask(); + if (!ret) { + if (!m_bExtBuf) { + FX_Free(m_pBuffer); + m_pBuffer = NULL; + m_Width = m_Height = m_Pitch = 0; + return FALSE; + } + } + } + return TRUE; +} + +FX_BOOL CFX_DIBitmap::Copy(const CFX_DIBSource* pSrc) { + if (m_pBuffer) { + return FALSE; + } + if (!Create(pSrc->GetWidth(), pSrc->GetHeight(), pSrc->GetFormat())) { + return FALSE; + } + CopyPalette(pSrc->GetPalette()); + CopyAlphaMask(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_DIBitmap* pSrcBitmap) { + if (!m_bExtBuf) + FX_Free(m_pBuffer); + + FX_Free(m_pPalette); + delete m_pAlphaMask; + m_pBuffer = pSrcBitmap->m_pBuffer; + m_pPalette = pSrcBitmap->m_pPalette; + m_pAlphaMask = pSrcBitmap->m_pAlphaMask; + pSrcBitmap->m_pBuffer = nullptr; + pSrcBitmap->m_pPalette = 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; +} + +CFX_DIBitmap* CFX_DIBSource::Clone(const FX_RECT* pClip) const { + FX_RECT rect(0, 0, m_Width, m_Height); + if (pClip) { + rect.Intersect(*pClip); + if (rect.IsEmpty()) { + return NULL; + } + } + CFX_DIBitmap* pNewBitmap = new CFX_DIBitmap; + if (!pNewBitmap->Create(rect.Width(), rect.Height(), GetFormat())) { + delete pNewBitmap; + return NULL; + } + pNewBitmap->CopyPalette(m_pPalette); + pNewBitmap->CopyAlphaMask(m_pAlphaMask, pClip); + if (GetBPP() == 1 && rect.left % 8 != 0) { + int left_shift = rect.left % 32; + int right_shift = 32 - left_shift; + int dword_count = pNewBitmap->m_Pitch / 4; + for (int row = rect.top; row < rect.bottom; row++) { + FX_DWORD* src_scan = (FX_DWORD*)GetScanline(row) + rect.left / 32; + FX_DWORD* dest_scan = (FX_DWORD*)pNewBitmap->GetScanline(row - rect.top); + for (int i = 0; i < dword_count; i++) { + dest_scan[i] = + (src_scan[i] << left_shift) | (src_scan[i + 1] >> right_shift); + } + } + } else { + int copy_len = (pNewBitmap->GetWidth() * pNewBitmap->GetBPP() + 7) / 8; + if (m_Pitch < (FX_DWORD)copy_len) { + copy_len = m_Pitch; + } + for (int row = rect.top; row < rect.bottom; row++) { + const uint8_t* src_scan = GetScanline(row) + rect.left * m_bpp / 8; + uint8_t* dest_scan = (uint8_t*)pNewBitmap->GetScanline(row - rect.top); + FXSYS_memcpy(dest_scan, src_scan, copy_len); + } + } + return pNewBitmap; +} +void CFX_DIBSource::BuildPalette() { + if (m_pPalette) { + return; + } + if (GetBPP() == 1) { + m_pPalette = FX_Alloc(FX_DWORD, 2); + if (IsCmykImage()) { + m_pPalette[0] = 0xff; + m_pPalette[1] = 0; + } else { + m_pPalette[0] = 0xff000000; + m_pPalette[1] = 0xffffffff; + } + } else if (GetBPP() == 8) { + m_pPalette = FX_Alloc(FX_DWORD, 256); + if (IsCmykImage()) { + for (int i = 0; i < 256; i++) { + m_pPalette[i] = 0xff - i; + } + } else { + for (int i = 0; i < 256; i++) { + m_pPalette[i] = 0xff000000 | (i * 0x10101); + } + } + } +} +FX_BOOL CFX_DIBSource::BuildAlphaMask() { + if (m_pAlphaMask) { + return TRUE; + } + m_pAlphaMask = new CFX_DIBitmap; + if (!m_pAlphaMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { + delete m_pAlphaMask; + m_pAlphaMask = NULL; + return FALSE; + } + FXSYS_memset(m_pAlphaMask->GetBuffer(), 0xff, + m_pAlphaMask->GetHeight() * m_pAlphaMask->GetPitch()); + return TRUE; +} +FX_DWORD CFX_DIBSource::GetPaletteEntry(int index) const { + ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask()); + if (m_pPalette) { + return m_pPalette[index]; + } + if (IsCmykImage()) { + if (GetBPP() == 1) { + return index ? 0 : 0xff; + } + return 0xff - index; + } + if (GetBPP() == 1) { + return index ? 0xffffffff : 0xff000000; + } + return index * 0x10101 | 0xff000000; +} +void CFX_DIBSource::SetPaletteEntry(int index, FX_DWORD color) { + ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask()); + if (!m_pPalette) { + BuildPalette(); + } + m_pPalette[index] = color; +} +int CFX_DIBSource::FindPalette(FX_DWORD color) const { + ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask()); + if (!m_pPalette) { + if (IsCmykImage()) { + if (GetBPP() == 1) { + return ((uint8_t)color == 0xff) ? 0 : 1; + } + return 0xff - (uint8_t)color; + } + if (GetBPP() == 1) { + return ((uint8_t)color == 0xff) ? 1 : 0; + } + return (uint8_t)color; + } + int palsize = (1 << GetBPP()); + for (int i = 0; i < palsize; i++) + if (m_pPalette[i] == color) { + return i; + } + return -1; +} +void CFX_DIBitmap::Clear(FX_DWORD 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); + for (int i = 0; i < m_Width; i++) { + ((FX_DWORD*)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; + } +} +void CFX_DIBSource::GetOverlapRect(int& dest_left, + int& dest_top, + int& width, + int& height, + int src_width, + int src_height, + int& src_left, + int& src_top, + const CFX_ClipRgn* pClipRgn) { + if (width == 0 || height == 0) { + return; + } + ASSERT(width > 0 && height > 0); + if (dest_left > m_Width || dest_top > m_Height) { + width = 0; + height = 0; + return; + } + int x_offset = dest_left - src_left; + int y_offset = dest_top - src_top; + FX_RECT src_rect(src_left, src_top, src_left + width, src_top + height); + FX_RECT src_bound(0, 0, src_width, src_height); + src_rect.Intersect(src_bound); + FX_RECT dest_rect(src_rect.left + x_offset, src_rect.top + y_offset, + src_rect.right + x_offset, src_rect.bottom + y_offset); + FX_RECT dest_bound(0, 0, m_Width, m_Height); + dest_rect.Intersect(dest_bound); + if (pClipRgn) { + dest_rect.Intersect(pClipRgn->GetBox()); + } + dest_left = dest_rect.left; + dest_top = dest_rect.top; + src_left = dest_left - x_offset; + src_top = dest_top - y_offset; + width = dest_rect.right - dest_rect.left; + height = dest_rect.bottom - dest_rect.top; +} +FX_BOOL CFX_DIBitmap::TransferBitmap(int dest_left, + int dest_top, + int width, + int height, + const CFX_DIBSource* pSrcBitmap, + int src_left, + int src_top, + void* pIccTransform) { + if (!m_pBuffer) { + return FALSE; + } + GetOverlapRect(dest_left, dest_top, width, height, pSrcBitmap->GetWidth(), + pSrcBitmap->GetHeight(), src_left, src_top, NULL); + if (width == 0 || height == 0) { + return TRUE; + } + FXDIB_Format dest_format = GetFormat(); + FXDIB_Format src_format = pSrcBitmap->GetFormat(); + if (dest_format == src_format && !pIccTransform) { + 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; + FX_DWORD* d_plt = NULL; + if (!ConvertBuffer(dest_format, dest_buf, m_Pitch, width, height, + pSrcBitmap, src_left, src_top, d_plt, pIccTransform)) { + return FALSE; + } + } + return TRUE; +} +FX_BOOL CFX_DIBitmap::TransferMask(int dest_left, + int dest_top, + int width, + int height, + const CFX_DIBSource* pMask, + FX_DWORD 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, NULL); + if (width == 0 || height == 0) { + return TRUE; + } + int src_bpp = pMask->GetBPP(); + int alpha; + FX_DWORD 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()) { + ICodec_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++) { + FX_DWORD* dest_pos = + (FX_DWORD*)(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; +} +void CFX_DIBSource::CopyPalette(const FX_DWORD* pSrc, FX_DWORD size) { + if (!pSrc || GetBPP() > 8) { + FX_Free(m_pPalette); + m_pPalette = NULL; + } else { + FX_DWORD pal_size = 1 << GetBPP(); + if (!m_pPalette) { + m_pPalette = FX_Alloc(FX_DWORD, pal_size); + } + if (pal_size > size) { + pal_size = size; + } + FXSYS_memcpy(m_pPalette, pSrc, pal_size * sizeof(FX_DWORD)); + } +} +void CFX_DIBSource::GetPalette(FX_DWORD* pal, int alpha) const { + ASSERT(GetBPP() <= 8 && !IsCmykImage()); + if (GetBPP() == 1) { + pal[0] = + ((m_pPalette ? m_pPalette[0] : 0xff000000) & 0xffffff) | (alpha << 24); + pal[1] = + ((m_pPalette ? m_pPalette[1] : 0xffffffff) & 0xffffff) | (alpha << 24); + return; + } + if (m_pPalette) { + for (int i = 0; i < 256; i++) { + pal[i] = (m_pPalette[i] & 0x00ffffff) | (alpha << 24); + } + } else { + for (int i = 0; i < 256; i++) { + pal[i] = (i * 0x10101) | (alpha << 24); + } + } +} +CFX_DIBitmap* CFX_DIBSource::GetAlphaMask(const FX_RECT* pClip) const { + ASSERT(GetFormat() == FXDIB_Argb); + FX_RECT rect(0, 0, m_Width, m_Height); + if (pClip) { + rect.Intersect(*pClip); + if (rect.IsEmpty()) { + return NULL; + } + } + CFX_DIBitmap* pMask = new CFX_DIBitmap; + if (!pMask->Create(rect.Width(), rect.Height(), FXDIB_8bppMask)) { + delete pMask; + return NULL; + } + for (int row = rect.top; row < rect.bottom; row++) { + const uint8_t* src_scan = GetScanline(row) + rect.left * 4 + 3; + uint8_t* dest_scan = (uint8_t*)pMask->GetScanline(row - rect.top); + for (int col = rect.left; col < rect.right; col++) { + *dest_scan++ = *src_scan; + src_scan += 4; + } + } + return pMask; +} +FX_BOOL CFX_DIBSource::CopyAlphaMask(const CFX_DIBSource* pAlphaMask, + const FX_RECT* pClip) { + if (!HasAlpha() || GetFormat() == FXDIB_Argb) { + return FALSE; + } + if (pAlphaMask) { + FX_RECT rect(0, 0, pAlphaMask->m_Width, pAlphaMask->m_Height); + if (pClip) { + rect.Intersect(*pClip); + if (rect.IsEmpty() || rect.Width() != m_Width || + rect.Height() != m_Height) { + return FALSE; + } + } else { + if (pAlphaMask->m_Width != m_Width || pAlphaMask->m_Height != m_Height) { + return FALSE; + } + } + for (int row = 0; row < m_Height; row++) + FXSYS_memcpy((void*)m_pAlphaMask->GetScanline(row), + pAlphaMask->GetScanline(row + rect.top) + rect.left, + m_pAlphaMask->m_Pitch); + } else { + m_pAlphaMask->Clear(0xff000000); + } + return TRUE; +} +const int g_ChannelOffset[] = {0, 2, 1, 0, 0, 1, 2, 3, 3}; +FX_BOOL CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, + const CFX_DIBSource* pSrcBitmap, + FXDIB_Channel srcChannel) { + if (!m_pBuffer) { + return FALSE; + } + CFX_DIBSource* pSrcClone = (CFX_DIBSource*)pSrcBitmap; + CFX_DIBitmap* pDst = this; + int destOffset, 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; + } + } + if (pSrcBitmap->GetFormat() == FXDIB_Argb) { + srcOffset = 3; + } else { + srcOffset = 0; + } + } else { + if (pSrcBitmap->IsAlphaMask()) { + return FALSE; + } + if (pSrcBitmap->GetBPP() < 24) { + if (pSrcBitmap->IsCmykImage()) { + pSrcClone = pSrcBitmap->CloneConvert( + (FXDIB_Format)((pSrcBitmap->GetFormat() & 0xff00) | 0x20)); + } else { + pSrcClone = pSrcBitmap->CloneConvert( + (FXDIB_Format)((pSrcBitmap->GetFormat() & 0xff00) | 0x18)); + } + if (!pSrcClone) { + return FALSE; + } + } + srcOffset = g_ChannelOffset[srcChannel]; + } + if (destChannel == FXDIB_Alpha) { + if (IsAlphaMask()) { + if (!ConvertFormat(FXDIB_8bppMask)) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return FALSE; + } + destOffset = 0; + } else { + destOffset = 0; + if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return FALSE; + } + if (GetFormat() == FXDIB_Argb) { + destOffset = 3; + } + } + } else { + if (IsAlphaMask()) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return FALSE; + } + if (GetBPP() < 24) { + if (HasAlpha()) { + if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + 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 + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return FALSE; + } + } + destOffset = g_ChannelOffset[destChannel]; + } + if (srcChannel == FXDIB_Alpha && pSrcClone->m_pAlphaMask) { + CFX_DIBitmap* pAlphaMask = pSrcClone->m_pAlphaMask; + if (pSrcClone->GetWidth() != m_Width || + pSrcClone->GetHeight() != m_Height) { + if (pAlphaMask) { + pAlphaMask = pAlphaMask->StretchTo(m_Width, m_Height); + if (!pAlphaMask) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return FALSE; + } + } + } + if (pSrcClone != pSrcBitmap) { + pSrcClone->m_pAlphaMask = NULL; + delete pSrcClone; + } + pSrcClone = pAlphaMask; + srcOffset = 0; + } else if (pSrcClone->GetWidth() != m_Width || + pSrcClone->GetHeight() != m_Height) { + CFX_DIBitmap* pSrcMatched = pSrcClone->StretchTo(m_Width, m_Height); + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + if (!pSrcMatched) { + return FALSE; + } + pSrcClone = pSrcMatched; + } + 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; + } + } + if (pSrcClone != pSrcBitmap && pSrcClone != pSrcBitmap->m_pAlphaMask) { + delete pSrcClone; + } + return TRUE; +} +FX_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; +} +FX_BOOL CFX_DIBitmap::MultiplyAlpha(const 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_DIBitmap* pSrcClone = (CFX_DIBitmap*)pSrcBitmap; + 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)) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + 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) { + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + 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); + } + } + if (pSrcClone != pSrcBitmap) { + delete pSrcClone; + } + return TRUE; +} +FX_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 = (uint8_t)(m_pPalette[i] >> 16); + int g = (uint8_t)(m_pPalette[i] >> 8); + int b = (uint8_t)m_pPalette[i]; + gray[i] = (uint8_t)FXRGB2GRAY(r, g, b); + } + CFX_DIBitmap* pMask = new CFX_DIBitmap; + if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { + delete pMask; + 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(pMask); + delete pMask; + break; + } + case FXDIB_8bppRgb: { + if (!m_pPalette) { + return FALSE; + } + uint8_t gray[256]; + for (int i = 0; i < 256; i++) { + int r = (uint8_t)(m_pPalette[i] >> 16); + int g = (uint8_t)(m_pPalette[i] >> 8); + int b = (uint8_t)m_pPalette[i]; + gray[i] = (uint8_t)FXRGB2GRAY(r, g, b); + } + CFX_DIBitmap* pMask = new CFX_DIBitmap; + if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { + delete pMask; + 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(pMask); + delete pMask; + break; + } + case FXDIB_Rgb: { + CFX_DIBitmap* pMask = new CFX_DIBitmap; + if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { + delete pMask; + 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(pMask); + delete pMask; + break; + } + case FXDIB_Rgb32: { + CFX_DIBitmap* pMask = new CFX_DIBitmap; + if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { + delete pMask; + 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(pMask); + delete pMask; + break; + } + default: + return FALSE; + } + return TRUE; +} +FX_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; +} +FX_DWORD 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[1] : 0xffffffff; + } + return m_pPalette ? m_pPalette[0] : 0xff000000; + } + case FXDIB_8bppMask: + return (*pos) << 24; + case FXDIB_8bppRgb: + return m_pPalette ? m_pPalette[*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, FX_DWORD 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[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[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, + FX_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++) { + FX_DWORD dest_x = clip_left + i; + FX_DWORD 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++) { + FX_DWORD dest_x = clip_left + i; + FX_DWORD 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[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[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++) { + FX_DWORD dest_x = clip_left + i; + FX_DWORD 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]; + } + } + } +} +FX_BOOL CFX_DIBitmap::ConvertColorScale(FX_DWORD forecolor, + FX_DWORD backcolor) { + ASSERT(!IsAlphaMask()); + if (!m_pBuffer || IsAlphaMask()) { + return FALSE; + } + int fc, fm, fy, fk, bc, bm, by, bk; + int fr, fg, fb, br, bg, bb; + FX_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[i]), + FXSYS_GetMValue(m_pPalette[i]), + FXSYS_GetYValue(m_pPalette[i]), + FXSYS_GetKValue(m_pPalette[i]), r, g, b); + int gray = 255 - FXRGB2GRAY(r, g, b); + m_pPalette[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[i]), FXARGB_G(m_pPalette[i]), + FXARGB_B(m_pPalette[i])); + m_pPalette[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; +} +FX_BOOL CFX_DIBitmap::DitherFS(const FX_DWORD* pPalette, + int pal_size, + const FX_RECT* pRect) { + if (!m_pBuffer) { + return FALSE; + } + if (m_bpp != 8 && m_pPalette && m_AlphaFlag != 0) { + return FALSE; + } + if (m_Width < 4 && m_Height < 4) { + return FALSE; + } + FX_RECT rect(0, 0, m_Width, m_Height); + if (pRect) { + rect.Intersect(*pRect); + } + uint8_t translate[256]; + for (int i = 0; i < 256; i++) { + int err2 = 65536; + for (int j = 0; j < pal_size; j++) { + uint8_t entry = (uint8_t)pPalette[j]; + int err = (int)entry - i; + if (err * err < err2) { + err2 = err * err; + translate[i] = entry; + } + } + } + for (int row = rect.top; row < rect.bottom; row++) { + uint8_t* scan = m_pBuffer + row * m_Pitch; + uint8_t* next_scan = m_pBuffer + (row + 1) * m_Pitch; + for (int col = rect.left; col < rect.right; col++) { + int src_pixel = scan[col]; + int dest_pixel = translate[src_pixel]; + scan[col] = (uint8_t)dest_pixel; + int error = -dest_pixel + src_pixel; + if (col < rect.right - 1) { + int src = scan[col + 1]; + src += error * 7 / 16; + if (src > 255) { + scan[col + 1] = 255; + } else if (src < 0) { + scan[col + 1] = 0; + } else { + scan[col + 1] = src; + } + } + if (col < rect.right - 1 && row < rect.bottom - 1) { + int src = next_scan[col + 1]; + src += error * 1 / 16; + if (src > 255) { + next_scan[col + 1] = 255; + } else if (src < 0) { + next_scan[col + 1] = 0; + } else { + next_scan[col + 1] = src; + } + } + if (row < rect.bottom - 1) { + int src = next_scan[col]; + src += error * 5 / 16; + if (src > 255) { + next_scan[col] = 255; + } else if (src < 0) { + next_scan[col] = 0; + } else { + next_scan[col] = src; + } + } + if (col > rect.left && row < rect.bottom - 1) { + int src = next_scan[col - 1]; + src += error * 3 / 16; + if (src > 255) { + next_scan[col - 1] = 255; + } else if (src < 0) { + next_scan[col - 1] = 0; + } else { + next_scan[col - 1] = src; + } + } + } + } + return TRUE; +} +CFX_DIBitmap* CFX_DIBSource::FlipImage(FX_BOOL bXFlip, FX_BOOL bYFlip) const { + CFX_DIBitmap* pFlipped = new CFX_DIBitmap; + if (!pFlipped->Create(m_Width, m_Height, GetFormat())) { + delete pFlipped; + return NULL; + } + pFlipped->CopyPalette(m_pPalette); + uint8_t* pDestBuffer = pFlipped->GetBuffer(); + int Bpp = m_bpp / 8; + for (int row = 0; row < m_Height; row++) { + const uint8_t* src_scan = GetScanline(row); + uint8_t* dest_scan = + pDestBuffer + m_Pitch * (bYFlip ? (m_Height - row - 1) : row); + if (!bXFlip) { + FXSYS_memcpy(dest_scan, src_scan, m_Pitch); + continue; + } + if (m_bpp == 1) { + FXSYS_memset(dest_scan, 0, m_Pitch); + for (int col = 0; col < m_Width; col++) + if (src_scan[col / 8] & (1 << (7 - col % 8))) { + int dest_col = m_Width - col - 1; + dest_scan[dest_col / 8] |= (1 << (7 - dest_col % 8)); + } + } else { + dest_scan += (m_Width - 1) * Bpp; + if (Bpp == 1) { + for (int col = 0; col < m_Width; col++) { + *dest_scan = *src_scan; + dest_scan--; + src_scan++; + } + } else if (Bpp == 3) { + for (int col = 0; col < m_Width; col++) { + dest_scan[0] = src_scan[0]; + dest_scan[1] = src_scan[1]; + dest_scan[2] = src_scan[2]; + dest_scan -= 3; + src_scan += 3; + } + } else { + ASSERT(Bpp == 4); + for (int col = 0; col < m_Width; col++) { + *(FX_DWORD*)dest_scan = *(FX_DWORD*)src_scan; + dest_scan -= 4; + src_scan += 4; + } + } + } + } + if (m_pAlphaMask) { + pDestBuffer = pFlipped->m_pAlphaMask->GetBuffer(); + FX_DWORD dest_pitch = pFlipped->m_pAlphaMask->GetPitch(); + for (int row = 0; row < m_Height; row++) { + const uint8_t* src_scan = m_pAlphaMask->GetScanline(row); + uint8_t* dest_scan = + pDestBuffer + dest_pitch * (bYFlip ? (m_Height - row - 1) : row); + if (!bXFlip) { + FXSYS_memcpy(dest_scan, src_scan, dest_pitch); + continue; + } + dest_scan += (m_Width - 1); + for (int col = 0; col < m_Width; col++) { + *dest_scan = *src_scan; + dest_scan--; + src_scan++; + } + } + } + return pFlipped; +} +CFX_DIBExtractor::CFX_DIBExtractor(const CFX_DIBSource* pSrc) { + m_pBitmap = NULL; + if (pSrc->GetBuffer()) { + m_pBitmap = new CFX_DIBitmap; + if (!m_pBitmap->Create(pSrc->GetWidth(), pSrc->GetHeight(), + pSrc->GetFormat(), pSrc->GetBuffer())) { + delete m_pBitmap; + m_pBitmap = NULL; + return; + } + m_pBitmap->CopyPalette(pSrc->GetPalette()); + m_pBitmap->CopyAlphaMask(pSrc->m_pAlphaMask); + } else { + m_pBitmap = pSrc->Clone(); + } +} +CFX_DIBExtractor::~CFX_DIBExtractor() { + delete m_pBitmap; +} +CFX_FilteredDIB::CFX_FilteredDIB() { + m_pScanline = NULL; + m_pSrc = NULL; +} +CFX_FilteredDIB::~CFX_FilteredDIB() { + if (m_bAutoDropSrc) { + delete m_pSrc; + } + FX_Free(m_pScanline); +} +void CFX_FilteredDIB::LoadSrc(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc) { + m_pSrc = pSrc; + m_bAutoDropSrc = bAutoDropSrc; + m_Width = pSrc->GetWidth(); + m_Height = pSrc->GetHeight(); + FXDIB_Format format = GetDestFormat(); + m_bpp = (uint8_t)format; + m_AlphaFlag = (uint8_t)(format >> 8); + m_Pitch = (m_Width * (format & 0xff) + 31) / 32 * 4; + m_pPalette = GetDestPalette(); + m_pScanline = FX_Alloc(uint8_t, m_Pitch); +} +const uint8_t* CFX_FilteredDIB::GetScanline(int line) const { + TranslateScanline(m_pScanline, m_pSrc->GetScanline(line)); + return m_pScanline; +} +void CFX_FilteredDIB::DownSampleScanline(int line, + uint8_t* dest_scan, + int dest_bpp, + int dest_width, + FX_BOOL bFlipX, + int clip_left, + int clip_width) const { + m_pSrc->DownSampleScanline(line, dest_scan, dest_bpp, dest_width, bFlipX, + clip_left, clip_width); + TranslateDownSamples(dest_scan, dest_scan, clip_width, dest_bpp); +} +CFX_ImageRenderer::CFX_ImageRenderer() { + m_Status = 0; + m_pTransformer = NULL; + m_bRgbByteOrder = FALSE; + m_BlendType = FXDIB_BLEND_NORMAL; +} +CFX_ImageRenderer::~CFX_ImageRenderer() { + delete m_pTransformer; +} +FX_BOOL CFX_ImageRenderer::Start(CFX_DIBitmap* pDevice, + const CFX_ClipRgn* pClipRgn, + const CFX_DIBSource* pSource, + int bitmap_alpha, + FX_DWORD mask_color, + const CFX_Matrix* pMatrix, + FX_DWORD dib_flags, + FX_BOOL bRgbByteOrder, + int alpha_flag, + void* pIccTransform, + int blend_type) { + m_Matrix = *pMatrix; + CFX_FloatRect image_rect_f = m_Matrix.GetUnitRect(); + FX_RECT image_rect = image_rect_f.GetOutterRect(); + m_ClipBox = pClipRgn ? pClipRgn->GetBox() : FX_RECT(0, 0, pDevice->GetWidth(), + pDevice->GetHeight()); + m_ClipBox.Intersect(image_rect); + if (m_ClipBox.IsEmpty()) { + return FALSE; + } + m_pDevice = pDevice; + m_pClipRgn = pClipRgn; + m_MaskColor = mask_color; + m_BitmapAlpha = bitmap_alpha; + m_Matrix = *pMatrix; + m_Flags = dib_flags; + m_AlphaFlag = alpha_flag; + m_pIccTransform = pIccTransform; + m_bRgbByteOrder = bRgbByteOrder; + m_BlendType = blend_type; + FX_BOOL ret = TRUE; + if ((FXSYS_fabs(m_Matrix.b) >= 0.5f || m_Matrix.a == 0) || + (FXSYS_fabs(m_Matrix.c) >= 0.5f || m_Matrix.d == 0)) { + if (FXSYS_fabs(m_Matrix.a) < FXSYS_fabs(m_Matrix.b) / 20 && + FXSYS_fabs(m_Matrix.d) < FXSYS_fabs(m_Matrix.c) / 20 && + FXSYS_fabs(m_Matrix.a) < 0.5f && FXSYS_fabs(m_Matrix.d) < 0.5f) { + int dest_width = image_rect.Width(); + int dest_height = image_rect.Height(); + FX_RECT bitmap_clip = m_ClipBox; + bitmap_clip.Offset(-image_rect.left, -image_rect.top); + bitmap_clip = FXDIB_SwapClipBox(bitmap_clip, dest_width, dest_height, + m_Matrix.c > 0, m_Matrix.b < 0); + m_Composer.Compose(pDevice, pClipRgn, bitmap_alpha, mask_color, m_ClipBox, + TRUE, m_Matrix.c > 0, m_Matrix.b < 0, m_bRgbByteOrder, + alpha_flag, pIccTransform, m_BlendType); + if (!m_Stretcher.Start(&m_Composer, pSource, dest_height, dest_width, + bitmap_clip, dib_flags)) { + return FALSE; + } + m_Status = 1; + return TRUE; + } + m_Status = 2; + m_pTransformer = new CFX_ImageTransformer; + m_pTransformer->Start(pSource, &m_Matrix, dib_flags, &m_ClipBox); + return TRUE; + } + int dest_width = image_rect.Width(); + if (m_Matrix.a < 0) { + dest_width = -dest_width; + } + int dest_height = image_rect.Height(); + if (m_Matrix.d > 0) { + dest_height = -dest_height; + } + if (dest_width == 0 || dest_height == 0) { + return FALSE; + } + FX_RECT bitmap_clip = m_ClipBox; + bitmap_clip.Offset(-image_rect.left, -image_rect.top); + m_Composer.Compose(pDevice, pClipRgn, bitmap_alpha, mask_color, m_ClipBox, + FALSE, FALSE, FALSE, m_bRgbByteOrder, alpha_flag, + pIccTransform, m_BlendType); + m_Status = 1; + ret = m_Stretcher.Start(&m_Composer, pSource, dest_width, dest_height, + bitmap_clip, dib_flags); + return ret; +} +FX_BOOL CFX_ImageRenderer::Continue(IFX_Pause* pPause) { + if (m_Status == 1) { + return m_Stretcher.Continue(pPause); + } + if (m_Status == 2) { + if (m_pTransformer->Continue(pPause)) { + return TRUE; + } + CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach(); + if (!pBitmap) { + return FALSE; + } + if (!pBitmap->GetBuffer()) { + delete pBitmap; + return FALSE; + } + if (pBitmap->IsAlphaMask()) { + if (m_BitmapAlpha != 255) { + if (m_AlphaFlag >> 8) { + m_AlphaFlag = + (((uint8_t)((m_AlphaFlag & 0xff) * m_BitmapAlpha / 255)) | + ((m_AlphaFlag >> 8) << 8)); + } else { + m_MaskColor = FXARGB_MUL_ALPHA(m_MaskColor, m_BitmapAlpha); + } + } + m_pDevice->CompositeMask(m_pTransformer->m_ResultLeft, + m_pTransformer->m_ResultTop, pBitmap->GetWidth(), + pBitmap->GetHeight(), pBitmap, m_MaskColor, 0, 0, + m_BlendType, m_pClipRgn, m_bRgbByteOrder, + m_AlphaFlag, m_pIccTransform); + } else { + if (m_BitmapAlpha != 255) { + pBitmap->MultiplyAlpha(m_BitmapAlpha); + } + m_pDevice->CompositeBitmap( + m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop, + pBitmap->GetWidth(), pBitmap->GetHeight(), pBitmap, 0, 0, m_BlendType, + m_pClipRgn, m_bRgbByteOrder, m_pIccTransform); + } + delete pBitmap; + return FALSE; + } + return FALSE; +} +CFX_BitmapStorer::CFX_BitmapStorer() { + m_pBitmap = NULL; +} +CFX_BitmapStorer::~CFX_BitmapStorer() { + delete m_pBitmap; +} +CFX_DIBitmap* CFX_BitmapStorer::Detach() { + CFX_DIBitmap* pBitmap = m_pBitmap; + m_pBitmap = NULL; + return pBitmap; +} +void CFX_BitmapStorer::Replace(CFX_DIBitmap* pBitmap) { + delete m_pBitmap; + m_pBitmap = pBitmap; +} +void CFX_BitmapStorer::ComposeScanline(int line, + const uint8_t* scanline, + const uint8_t* scan_extra_alpha) { + uint8_t* dest_buf = (uint8_t*)m_pBitmap->GetScanline(line); + uint8_t* dest_alpha_buf = + m_pBitmap->m_pAlphaMask + ? (uint8_t*)m_pBitmap->m_pAlphaMask->GetScanline(line) + : NULL; + 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()); + } +} +FX_BOOL CFX_BitmapStorer::SetInfo(int width, + int height, + FXDIB_Format src_format, + FX_DWORD* pSrcPalette) { + m_pBitmap = new CFX_DIBitmap; + if (!m_pBitmap->Create(width, height, src_format)) { + delete m_pBitmap; + m_pBitmap = NULL; + return FALSE; + } + if (pSrcPalette) { + m_pBitmap->CopyPalette(pSrcPalette); + } + return TRUE; +} |