| // 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 "../../../include/fxge/fx_dib.h" |
| #include "../../../include/fxge/fx_ge.h" |
| #include "../../../include/fxcodec/fx_codec.h" |
| #include "dib_int.h" |
| #include <limits.h> |
| FX_BOOL ConvertBuffer(FXDIB_Format dest_format, FX_LPBYTE 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() |
| { |
| if (m_pPalette) { |
| FX_Free(m_pPalette); |
| } |
| if (m_pAlphaMask) { |
| delete m_pAlphaMask; |
| } |
| } |
| 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, FX_LPBYTE pBuffer, int pitch) |
| { |
| m_pBuffer = NULL; |
| m_bpp = (FX_BYTE)format; |
| m_AlphaFlag = (FX_BYTE)(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(FX_BYTE, size); |
| } else { |
| m_pBuffer = FX_Alloc(FX_BYTE, size); |
| } |
| if (m_pBuffer == NULL) { |
| return FALSE; |
| } |
| } |
| 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 && m_pBuffer) { |
| 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_memcpy32(m_pBuffer + row * m_Pitch, pSrc->GetScanline(row), m_Pitch); |
| } |
| return TRUE; |
| } |
| CFX_DIBitmap::~CFX_DIBitmap() |
| { |
| if (m_pBuffer && !m_bExtBuf) { |
| FX_Free(m_pBuffer); |
| } |
| m_pBuffer = NULL; |
| } |
| void CFX_DIBitmap::TakeOver(CFX_DIBitmap* pSrcBitmap) |
| { |
| if (m_pBuffer && !m_bExtBuf) { |
| FX_Free(m_pBuffer); |
| } |
| if (m_pPalette) { |
| FX_Free(m_pPalette); |
| } |
| if (m_pAlphaMask) { |
| delete m_pAlphaMask; |
| } |
| m_pBuffer = pSrcBitmap->m_pBuffer; |
| m_pPalette = pSrcBitmap->m_pPalette; |
| m_pAlphaMask = pSrcBitmap->m_pAlphaMask; |
| pSrcBitmap->m_pBuffer = NULL; |
| pSrcBitmap->m_pPalette = NULL; |
| pSrcBitmap->m_pAlphaMask = NULL; |
| 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 ++) { |
| FX_LPCBYTE src_scan = GetScanline(row) + rect.left * m_bpp / 8; |
| FX_LPBYTE dest_scan = (FX_LPBYTE)pNewBitmap->GetScanline(row - rect.top); |
| FXSYS_memcpy32(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 (!m_pPalette) { |
| return; |
| } |
| 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 (!m_pPalette) { |
| return; |
| } |
| 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_memset8(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 == NULL) { |
| BuildPalette(); |
| } |
| m_pPalette[index] = color; |
| } |
| int CFX_DIBSource::FindPalette(FX_DWORD color) const |
| { |
| ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask()); |
| if (m_pPalette == NULL) { |
| if (IsCmykImage()) { |
| if (GetBPP() == 1) { |
| return ((FX_BYTE)color == 0xff) ? 0 : 1; |
| } |
| return 0xff - (FX_BYTE)color; |
| } |
| if (GetBPP() == 1) { |
| return ((FX_BYTE)color == 0xff) ? 1 : 0; |
| } |
| return (FX_BYTE)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 == NULL) { |
| return; |
| } |
| switch (GetFormat()) { |
| case FXDIB_1bppMask: |
| FXSYS_memset8(m_pBuffer, (color & 0xff000000) ? 0xff : 0, m_Pitch * m_Height); |
| break; |
| case FXDIB_1bppRgb: { |
| int index = FindPalette(color); |
| FXSYS_memset8(m_pBuffer, index ? 0xff : 0, m_Pitch * m_Height); |
| break; |
| } |
| case FXDIB_8bppMask: |
| FXSYS_memset8(m_pBuffer, color >> 24, m_Pitch * m_Height); |
| break; |
| case FXDIB_8bppRgb: { |
| int index = FindPalette(color); |
| FXSYS_memset8(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_memset8(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_memcpy32(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_memcpy32(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 == NULL) { |
| 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 == NULL) { |
| if (GetBPP() == 1) { |
| for (int row = 0; row < height; row ++) { |
| FX_LPBYTE dest_scan = m_pBuffer + (dest_top + row) * m_Pitch; |
| FX_LPCBYTE 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 ++) { |
| FX_LPBYTE dest_scan = m_pBuffer + (dest_top + row) * m_Pitch + dest_left * Bpp; |
| FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp; |
| FXSYS_memcpy32(dest_scan, src_scan, width * Bpp); |
| } |
| } |
| } else { |
| if (m_pPalette) { |
| return FALSE; |
| } |
| if (m_bpp == 8) { |
| dest_format = FXDIB_8bppMask; |
| } |
| FX_LPBYTE 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 == NULL) { |
| 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); |
| } |
| FX_LPBYTE color_p = (FX_LPBYTE)&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] = (FX_BYTE)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); |
| FX_LPCBYTE 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 ++) { |
| FX_LPBYTE dest_color_pos = m_pBuffer + (dest_top + row) * m_Pitch + dest_left * comps; |
| FX_LPBYTE dest_alpha_pos = (FX_LPBYTE)m_pAlphaMask->GetScanline(dest_top + row) + dest_left; |
| FX_LPCBYTE 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_memcpy32(dest_color_pos, color_p, comps); |
| *dest_alpha_pos = 0xff; |
| } else { |
| FXSYS_memset32(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_memcpy32(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 == NULL || GetBPP() > 8) { |
| if (m_pPalette) { |
| FX_Free(m_pPalette); |
| } |
| m_pPalette = NULL; |
| } else { |
| FX_DWORD pal_size = 1 << GetBPP(); |
| if (m_pPalette == NULL) { |
| m_pPalette = FX_Alloc(FX_DWORD, pal_size); |
| } |
| if (!m_pPalette) { |
| return; |
| } |
| if (pal_size > size) { |
| pal_size = size; |
| } |
| FXSYS_memcpy32(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 ++) { |
| FX_LPCBYTE src_scan = GetScanline(row) + rect.left * 4 + 3; |
| FX_LPBYTE dest_scan = (FX_LPBYTE)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_memcpy32((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 == NULL) { |
| 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 == NULL) { |
| 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 == NULL) { |
| 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; |
| } |
| } else |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) { |
| #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 == NULL) { |
| 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 == NULL) { |
| 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 ++) { |
| FX_LPBYTE dest_pos = (FX_LPBYTE)pDst->GetScanline(row) + destOffset; |
| FX_LPCBYTE 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 == NULL) { |
| 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; |
| } |
| } else |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb)) { |
| return FALSE; |
| } |
| #else |
| if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) { |
| return FALSE; |
| } |
| #endif |
| } |
| destOffset = g_ChannelOffset[destChannel]; |
| } |
| int Bpp = GetBPP() / 8; |
| if (Bpp == 1) { |
| FXSYS_memset8(m_pBuffer, value, m_Height * m_Pitch); |
| return TRUE; |
| } |
| if (destChannel == FXDIB_Alpha && m_pAlphaMask) { |
| FXSYS_memset8(m_pAlphaMask->GetBuffer(), value, m_pAlphaMask->GetHeight()*m_pAlphaMask->GetPitch()); |
| return TRUE; |
| } |
| for (int row = 0; row < m_Height; row ++) { |
| FX_LPBYTE 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 == NULL) { |
| 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); |
| ASSERT(pSrcClone != NULL); |
| if (pSrcClone == NULL) { |
| return FALSE; |
| } |
| } |
| if (IsAlphaMask()) { |
| if(!ConvertFormat(FXDIB_8bppMask)) { |
| if (pSrcClone != pSrcBitmap) { |
| delete pSrcClone; |
| } |
| return FALSE; |
| } |
| for (int row = 0; row < m_Height; row ++) { |
| FX_LPBYTE dest_scan = m_pBuffer + m_Pitch * row; |
| FX_LPBYTE 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 ++) { |
| FX_LPBYTE dest_scan = m_pBuffer + m_Pitch * row + 3; |
| FX_LPBYTE 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 == NULL) { |
| return FALSE; |
| } |
| switch (GetFormat()) { |
| case FXDIB_1bppRgb: { |
| if (m_pPalette == NULL) { |
| return FALSE; |
| } |
| FX_BYTE gray[2]; |
| for (int i = 0; i < 2; i ++) { |
| int r = (FX_BYTE)(m_pPalette[i] >> 16); |
| int g = (FX_BYTE)(m_pPalette[i] >> 8); |
| int b = (FX_BYTE)m_pPalette[i]; |
| gray[i] = (FX_BYTE)FXRGB2GRAY(r, g, b); |
| } |
| CFX_DIBitmap* pMask = new CFX_DIBitmap; |
| if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) { |
| delete pMask; |
| return FALSE; |
| } |
| FXSYS_memset8(pMask->GetBuffer(), gray[0], pMask->GetPitch() * m_Height); |
| for (int row = 0; row < m_Height; row ++) { |
| FX_LPBYTE src_pos = m_pBuffer + row * m_Pitch; |
| FX_LPBYTE dest_pos = (FX_LPBYTE)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 == NULL) { |
| return FALSE; |
| } |
| FX_BYTE gray[256]; |
| for (int i = 0; i < 256; i ++) { |
| int r = (FX_BYTE)(m_pPalette[i] >> 16); |
| int g = (FX_BYTE)(m_pPalette[i] >> 8); |
| int b = (FX_BYTE)m_pPalette[i]; |
| gray[i] = (FX_BYTE)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 ++) { |
| FX_LPBYTE dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); |
| FX_LPBYTE 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 ++) { |
| FX_LPBYTE src_pos = m_pBuffer + row * m_Pitch; |
| FX_LPBYTE 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 ++) { |
| FX_LPBYTE src_pos = m_pBuffer + row * m_Pitch; |
| FX_LPBYTE 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 == NULL) { |
| 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 ++) { |
| FX_LPBYTE 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 ++) { |
| FX_LPBYTE 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 == NULL) { |
| return 0; |
| } |
| FX_LPBYTE 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; |
| } else { |
| return m_pPalette ? m_pPalette[0] : 0xff000000; |
| } |
| break; |
| } |
| 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 == NULL) { |
| return; |
| } |
| if (x < 0 || x >= m_Width || y < 0 || y >= m_Height) { |
| return; |
| } |
| FX_LPBYTE 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 = (FX_BYTE)(color >> 24); |
| break; |
| case FXDIB_8bppRgb: { |
| if (m_pPalette) { |
| for (int i = 0; i < 256; i ++) { |
| if (m_pPalette[i] == color) { |
| *pos = (FX_BYTE)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, FX_LPBYTE dest_scan, int dest_bpp, |
| int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const |
| { |
| if (m_pBuffer == NULL) { |
| return; |
| } |
| int src_Bpp = m_bpp / 8; |
| FX_LPBYTE 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 == NULL || 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 == NULL) { |
| return TRUE; |
| } |
| } else if (forecolor == 0 && backcolor == 0xffffff && m_pPalette == NULL) { |
| return TRUE; |
| } |
| if (m_pPalette == NULL) { |
| BuildPalette(); |
| } |
| int size = 1 << m_bpp; |
| if (isCmykImage) { |
| for (int i = 0; i < size; i ++) { |
| FX_BYTE 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 ++) { |
| FX_LPBYTE scanline = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col ++) { |
| FX_BYTE 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 ++) { |
| FX_LPBYTE 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 ++) { |
| FX_LPBYTE scanline = m_pBuffer + row * m_Pitch; |
| for (int col = 0; col < m_Width; col ++) { |
| FX_BYTE 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 ++) { |
| FX_LPBYTE 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 == NULL) { |
| return FALSE; |
| } |
| if (m_bpp != 8 && m_pPalette != NULL && 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); |
| } |
| FX_BYTE translate[256]; |
| for (int i = 0; i < 256; i ++) { |
| int err2 = 65536; |
| for (int j = 0; j < pal_size; j ++) { |
| FX_BYTE entry = (FX_BYTE)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 ++) { |
| FX_LPBYTE scan = m_pBuffer + row * m_Pitch; |
| FX_LPBYTE 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] = (FX_BYTE)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); |
| FX_LPBYTE pDestBuffer = pFlipped->GetBuffer(); |
| int Bpp = m_bpp / 8; |
| for (int row = 0; row < m_Height; row ++) { |
| FX_LPCBYTE src_scan = GetScanline(row); |
| FX_LPBYTE dest_scan = pDestBuffer + m_Pitch * (bYFlip ? (m_Height - row - 1) : row); |
| if (!bXFlip) { |
| FXSYS_memcpy32(dest_scan, src_scan, m_Pitch); |
| continue; |
| } |
| if (m_bpp == 1) { |
| FXSYS_memset32(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 ++) { |
| FX_LPCBYTE src_scan = m_pAlphaMask->GetScanline(row); |
| FX_LPBYTE dest_scan = pDestBuffer + dest_pitch * (bYFlip ? (m_Height - row - 1) : row); |
| if (!bXFlip) { |
| FXSYS_memcpy32(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() == NULL) { |
| m_pBitmap = pSrc->Clone(); |
| } else { |
| 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); |
| } |
| } |
| CFX_DIBExtractor::~CFX_DIBExtractor() |
| { |
| if (m_pBitmap) { |
| delete m_pBitmap; |
| } |
| } |
| CFX_FilteredDIB::CFX_FilteredDIB() |
| { |
| m_pScanline = NULL; |
| m_pSrc = NULL; |
| } |
| CFX_FilteredDIB::~CFX_FilteredDIB() |
| { |
| if (m_pSrc && m_bAutoDropSrc) { |
| delete m_pSrc; |
| } |
| if (m_pScanline) { |
| 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 = (FX_BYTE)format; |
| m_AlphaFlag = (FX_BYTE)(format >> 8); |
| m_Pitch = (m_Width * (format & 0xff) + 31) / 32 * 4; |
| m_pPalette = GetDestPalette(); |
| m_pScanline = FX_Alloc(FX_BYTE, m_Pitch); |
| } |
| FX_LPCBYTE CFX_FilteredDIB::GetScanline(int line) const |
| { |
| TranslateScanline(m_pScanline, m_pSrc->GetScanline(line)); |
| return m_pScanline; |
| } |
| void CFX_FilteredDIB::DownSampleScanline(int line, FX_LPBYTE 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() |
| { |
| if (m_pTransformer) { |
| delete m_pTransformer; |
| } |
| } |
| extern FX_RECT _FXDIB_SwapClipBox(FX_RECT& clip, int width, int height, FX_BOOL bFlipX, FX_BOOL bFlipY); |
| 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_AffineMatrix* 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); |
| } else if (m_Status == 2) { |
| if (m_pTransformer->Continue(pPause)) { |
| return TRUE; |
| } |
| CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach(); |
| if (pBitmap == NULL) { |
| return FALSE; |
| } |
| if (pBitmap->GetBuffer() == NULL) { |
| delete pBitmap; |
| return FALSE; |
| } |
| if (pBitmap->IsAlphaMask()) { |
| if (m_BitmapAlpha != 255) { |
| if (m_AlphaFlag >> 8) { |
| m_AlphaFlag = (((FX_BYTE)((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() |
| { |
| if (m_pBitmap) { |
| 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) |
| { |
| if (m_pBitmap) { |
| delete m_pBitmap; |
| } |
| m_pBitmap = pBitmap; |
| } |
| void CFX_BitmapStorer::ComposeScanline(int line, FX_LPCBYTE scanline, FX_LPCBYTE scan_extra_alpha) |
| { |
| FX_LPBYTE dest_buf = (FX_LPBYTE)m_pBitmap->GetScanline(line); |
| FX_LPBYTE dest_alpha_buf = m_pBitmap->m_pAlphaMask ? |
| (FX_LPBYTE)m_pBitmap->m_pAlphaMask->GetScanline(line) : NULL; |
| if (dest_buf) { |
| FXSYS_memcpy32(dest_buf, scanline, m_pBitmap->GetPitch()); |
| } |
| if (dest_alpha_buf) { |
| FXSYS_memcpy32(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; |
| } |
