// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #include "core/fxge/ge/fx_text_int.h" #include "core/include/fxcodec/fx_codec.h" #include "core/include/fxge/fx_freetype.h" #include "core/include/fxge/fx_ge.h" #undef FX_GAMMA #undef FX_GAMMA_INVERSE #define FX_GAMMA(value) (value) #define FX_GAMMA_INVERSE(value) (value) namespace { void ResetTransform(FT_Face face) { FXFT_Matrix matrix; matrix.xx = 0x10000L; matrix.xy = 0; matrix.yx = 0; matrix.yy = 0x10000L; FXFT_Set_Transform(face, &matrix, 0); } // Sets the given transform on the font, and resets it to the identity when it // goes out of scope. class ScopedFontTransform { public: ScopedFontTransform(FT_Face face, FXFT_Matrix* matrix) : m_Face(face) { FXFT_Set_Transform(m_Face, matrix, 0); } ~ScopedFontTransform() { ResetTransform(m_Face); } private: FT_Face m_Face; }; } // namespace FX_RECT FXGE_GetGlyphsBBox(FXTEXT_GLYPHPOS* pGlyphAndPos, int nChars, int anti_alias, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY) { FX_RECT rect(0, 0, 0, 0); FX_BOOL bStarted = FALSE; for (int iChar = 0; iChar < nChars; iChar++) { FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; const CFX_GlyphBitmap* pGlyph = glyph.m_pGlyph; if (!pGlyph) { continue; } int char_left = glyph.m_OriginX + pGlyph->m_Left; int char_width = (int)(pGlyph->m_Bitmap.GetWidth() / retinaScaleX); if (anti_alias == FXFT_RENDER_MODE_LCD) { char_width /= 3; } int char_right = char_left + char_width; int char_top = glyph.m_OriginY - pGlyph->m_Top; int char_bottom = char_top + (int)(pGlyph->m_Bitmap.GetHeight() / retinaScaleY); if (!bStarted) { rect.left = char_left; rect.right = char_right; rect.top = char_top; rect.bottom = char_bottom; bStarted = TRUE; } else { if (rect.left > char_left) { rect.left = char_left; } if (rect.right < char_right) { rect.right = char_right; } if (rect.top > char_top) { rect.top = char_top; } if (rect.bottom < char_bottom) { rect.bottom = char_bottom; } } } return rect; } static void _AdjustGlyphSpace(FXTEXT_GLYPHPOS* pGlyphAndPos, int nChars) { ASSERT(nChars > 1); FX_BOOL bVertical = FALSE; if (pGlyphAndPos[nChars - 1].m_OriginX == pGlyphAndPos[0].m_OriginX) { bVertical = TRUE; } else if (pGlyphAndPos[nChars - 1].m_OriginY != pGlyphAndPos[0].m_OriginY) { return; } int i = nChars - 1; int* next_origin = bVertical ? &pGlyphAndPos[i].m_OriginY : &pGlyphAndPos[i].m_OriginX; FX_FLOAT next_origin_f = bVertical ? pGlyphAndPos[i].m_fOriginY : pGlyphAndPos[i].m_fOriginX; for (i--; i > 0; i--) { int* this_origin = bVertical ? &pGlyphAndPos[i].m_OriginY : &pGlyphAndPos[i].m_OriginX; FX_FLOAT this_origin_f = bVertical ? pGlyphAndPos[i].m_fOriginY : pGlyphAndPos[i].m_fOriginX; int space = (*next_origin) - (*this_origin); FX_FLOAT space_f = next_origin_f - this_origin_f; FX_FLOAT error = (FX_FLOAT)(FXSYS_fabs(space_f) - FXSYS_fabs((FX_FLOAT)(space))); if (error > 0.5f) { *this_origin += space > 0 ? -1 : 1; } next_origin = this_origin; next_origin_f = this_origin_f; } } static const uint8_t g_TextGammaAdjust[256] = { 0, 2, 3, 4, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 250, 251, 252, 253, 254, 255, }; #define ADJUST_ALPHA(background, foreground, src_alpha, text_flags, a) \ src_alpha = g_TextGammaAdjust[(uint8_t)src_alpha]; void _Color2Argb(FX_ARGB& argb, uint32_t color, int alpha_flag, void* pIccTransform) { if (!pIccTransform && !FXGETFLAG_COLORTYPE(alpha_flag)) { argb = color; return; } if (!CFX_GEModule::Get()->GetCodecModule() || !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) { pIccTransform = NULL; } uint8_t bgra[4]; if (pIccTransform) { ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); color = FXGETFLAG_COLORTYPE(alpha_flag) ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); pIccModule->TranslateScanline(pIccTransform, bgra, (const uint8_t*)&color, 1); bgra[3] = FXGETFLAG_COLORTYPE(alpha_flag) ? (alpha_flag >> 24) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXGETFLAG_ALPHA_STROKE(alpha_flag) : FXARGB_A(color); argb = FXARGB_MAKE(bgra[3], bgra[2], bgra[1], bgra[0]); return; } AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color), FXSYS_GetYValue(color), FXSYS_GetKValue(color), bgra[2], bgra[1], bgra[0]); bgra[3] = (alpha_flag >> 24) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXGETFLAG_ALPHA_STROKE(alpha_flag); argb = FXARGB_MAKE(bgra[3], bgra[2], bgra[1], bgra[0]); } FX_BOOL CFX_RenderDevice::DrawNormalText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, CFX_FontCache* pCache, FX_FLOAT font_size, const CFX_Matrix* pText2Device, uint32_t fill_color, uint32_t text_flags, int alpha_flag, void* pIccTransform) { int nativetext_flags = text_flags; if (m_DeviceClass != FXDC_DISPLAY) { if (!(text_flags & FXTEXT_PRINTGRAPHICTEXT)) { bool should_call_draw_device_text = true; #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ if ((text_flags & FXFONT_CIDFONT) || (pFont->GetPsName().Find(CFX_WideString::FromLocal("+ZJHL")) != -1) || (pFont->GetPsName() == CFX_WideString::FromLocal("CNAAJI+cmex10"))) { should_call_draw_device_text = false; } #endif if (should_call_draw_device_text && m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pCache, pText2Device, font_size, fill_color, alpha_flag, pIccTransform)) { return TRUE; } } int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(fill_color); if (alpha < 255) { return FALSE; } } else if (!(text_flags & FXTEXT_NO_NATIVETEXT)) { bool should_call_draw_device_text = true; #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ if ((text_flags & FXFONT_CIDFONT) || (pFont->GetPsName() == CFX_WideString::FromLocal("CNAAJI+cmex10"))) { should_call_draw_device_text = false; } #endif if (should_call_draw_device_text && m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pCache, pText2Device, font_size, fill_color, alpha_flag, pIccTransform)) { return TRUE; } } CFX_Matrix char2device, deviceCtm, text2Device; if (pText2Device) { char2device = *pText2Device; text2Device = *pText2Device; } char2device.Scale(font_size, -font_size); if (FXSYS_fabs(char2device.a) + FXSYS_fabs(char2device.b) > 50 * 1.0f || ((m_DeviceClass == FXDC_PRINTER && !m_pDeviceDriver->IsPSPrintDriver()) && !(text_flags & FXTEXT_PRINTIMAGETEXT))) { if (pFont->GetFace() || (pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { int nPathFlags = (text_flags & FXTEXT_NOSMOOTH) == 0 ? 0 : FXFILL_NOPATHSMOOTH; return DrawTextPath(nChars, pCharPos, pFont, pCache, font_size, pText2Device, NULL, NULL, fill_color, 0, NULL, nPathFlags, alpha_flag, pIccTransform); } } int anti_alias = FXFT_RENDER_MODE_MONO; FX_BOOL bNormal = FALSE; if ((text_flags & FXTEXT_NOSMOOTH) == 0) { if (m_DeviceClass == FXDC_DISPLAY && m_bpp > 1) { FX_BOOL bClearType; if (!pFont->GetFace() && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_CLEARTYPE)) { bClearType = FALSE; } else { bClearType = text_flags & FXTEXT_CLEARTYPE; } if ((m_RenderCaps & (FXRC_ALPHA_OUTPUT | FXRC_CMYK_OUTPUT))) { anti_alias = FXFT_RENDER_MODE_LCD; bNormal = TRUE; } else if (m_bpp < 16) { anti_alias = FXFT_RENDER_MODE_NORMAL; } else { if (bClearType == FALSE) { anti_alias = FXFT_RENDER_MODE_LCD; bNormal = TRUE; } else { anti_alias = FXFT_RENDER_MODE_LCD; } } } } if (!pCache) { pCache = CFX_GEModule::Get()->GetFontCache(); } CFX_FaceCache* pFaceCache = pCache->GetCachedFace(pFont); FX_FONTCACHE_DEFINE(pCache, pFont); FXTEXT_GLYPHPOS* pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, nChars); int iChar; deviceCtm = char2device; CFX_Matrix matrixCTM = GetCTM(); FX_FLOAT scale_x = FXSYS_fabs(matrixCTM.a); FX_FLOAT scale_y = FXSYS_fabs(matrixCTM.d); deviceCtm.Concat(scale_x, 0, 0, scale_y, 0, 0); text2Device.Concat(scale_x, 0, 0, scale_y, 0, 0); for (iChar = 0; iChar < nChars; iChar++) { FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; const FXTEXT_CHARPOS& charpos = pCharPos[iChar]; glyph.m_fOriginX = charpos.m_OriginX; glyph.m_fOriginY = charpos.m_OriginY; text2Device.Transform(glyph.m_fOriginX, glyph.m_fOriginY); if (anti_alias < FXFT_RENDER_MODE_LCD) { glyph.m_OriginX = FXSYS_round(glyph.m_fOriginX); } else { glyph.m_OriginX = (int)FXSYS_floor(glyph.m_fOriginX); } glyph.m_OriginY = FXSYS_round(glyph.m_fOriginY); if (charpos.m_bGlyphAdjust) { CFX_Matrix new_matrix( charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); new_matrix.Concat(deviceCtm); glyph.m_pGlyph = pFaceCache->LoadGlyphBitmap( pFont, charpos.m_GlyphIndex, charpos.m_bFontStyle, &new_matrix, charpos.m_FontCharWidth, anti_alias, nativetext_flags); } else { glyph.m_pGlyph = pFaceCache->LoadGlyphBitmap( pFont, charpos.m_GlyphIndex, charpos.m_bFontStyle, &deviceCtm, charpos.m_FontCharWidth, anti_alias, nativetext_flags); } } if (anti_alias < FXFT_RENDER_MODE_LCD && nChars > 1) { _AdjustGlyphSpace(pGlyphAndPos, nChars); } FX_RECT bmp_rect1 = FXGE_GetGlyphsBBox(pGlyphAndPos, nChars, anti_alias); if (scale_x > 1 && scale_y > 1) { bmp_rect1.left--; bmp_rect1.top--; bmp_rect1.right++; bmp_rect1.bottom++; } FX_RECT bmp_rect(FXSYS_round((FX_FLOAT)(bmp_rect1.left) / scale_x), FXSYS_round((FX_FLOAT)(bmp_rect1.top) / scale_y), FXSYS_round((FX_FLOAT)bmp_rect1.right / scale_x), FXSYS_round((FX_FLOAT)bmp_rect1.bottom / scale_y)); bmp_rect.Intersect(m_ClipBox); if (bmp_rect.IsEmpty()) { FX_Free(pGlyphAndPos); return TRUE; } int pixel_width = FXSYS_round(bmp_rect.Width() * scale_x); int pixel_height = FXSYS_round(bmp_rect.Height() * scale_y); int pixel_left = FXSYS_round(bmp_rect.left * scale_x); int pixel_top = FXSYS_round(bmp_rect.top * scale_y); if (anti_alias == FXFT_RENDER_MODE_MONO) { CFX_DIBitmap bitmap; if (!bitmap.Create(pixel_width, pixel_height, FXDIB_1bppMask)) { FX_Free(pGlyphAndPos); return FALSE; } bitmap.Clear(0); for (iChar = 0; iChar < nChars; iChar++) { FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; if (!glyph.m_pGlyph) { continue; } const CFX_DIBitmap* pGlyph = &glyph.m_pGlyph->m_Bitmap; bitmap.TransferBitmap( glyph.m_OriginX + glyph.m_pGlyph->m_Left - pixel_left, glyph.m_OriginY - glyph.m_pGlyph->m_Top - pixel_top, pGlyph->GetWidth(), pGlyph->GetHeight(), pGlyph, 0, 0); } FX_Free(pGlyphAndPos); return SetBitMask(&bitmap, bmp_rect.left, bmp_rect.top, fill_color); } CFX_DIBitmap bitmap; if (m_bpp == 8) { if (!bitmap.Create(pixel_width, pixel_height, FXDIB_8bppMask)) { FX_Free(pGlyphAndPos); return FALSE; } } else { if (!CreateCompatibleBitmap(&bitmap, pixel_width, pixel_height)) { FX_Free(pGlyphAndPos); return FALSE; } } if (!bitmap.HasAlpha() && !bitmap.IsAlphaMask()) { bitmap.Clear(0xFFFFFFFF); if (!GetDIBits(&bitmap, bmp_rect.left, bmp_rect.top)) { FX_Free(pGlyphAndPos); return FALSE; } } else { bitmap.Clear(0); if (bitmap.m_pAlphaMask) { bitmap.m_pAlphaMask->Clear(0); } } int dest_width = pixel_width; uint8_t* dest_buf = bitmap.GetBuffer(); int dest_pitch = bitmap.GetPitch(); int Bpp = bitmap.GetBPP() / 8; int a = 0; int r = 0; int g = 0; int b = 0; if (anti_alias == FXFT_RENDER_MODE_LCD) { _Color2Argb(fill_color, fill_color, alpha_flag | (1 << 24), pIccTransform); ArgbDecode(fill_color, a, r, g, b); r = FX_GAMMA(r); g = FX_GAMMA(g); b = FX_GAMMA(b); } for (iChar = 0; iChar < nChars; iChar++) { FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; if (!glyph.m_pGlyph) { continue; } const CFX_DIBitmap* pGlyph = &glyph.m_pGlyph->m_Bitmap; int left = glyph.m_OriginX + glyph.m_pGlyph->m_Left - pixel_left; int top = glyph.m_OriginY - glyph.m_pGlyph->m_Top - pixel_top; int ncols = pGlyph->GetWidth(); int nrows = pGlyph->GetHeight(); if (anti_alias == FXFT_RENDER_MODE_NORMAL) { if (!bitmap.CompositeMask(left, top, ncols, nrows, pGlyph, fill_color, 0, 0, FXDIB_BLEND_NORMAL, NULL, FALSE, alpha_flag, pIccTransform)) { FX_Free(pGlyphAndPos); return FALSE; } continue; } FX_BOOL bBGRStripe = text_flags & FXTEXT_BGR_STRIPE; ncols /= 3; int x_subpixel = (int)(glyph.m_fOriginX * 3) % 3; uint8_t* src_buf = pGlyph->GetBuffer(); int src_pitch = pGlyph->GetPitch(); int start_col = left; if (start_col < 0) { start_col = 0; } int end_col = left + ncols; if (end_col > dest_width) { end_col = dest_width; } if (start_col >= end_col) { continue; } if (bitmap.GetFormat() == FXDIB_Argb) { for (int row = 0; row < nrows; row++) { int dest_row = row + top; if (dest_row < 0 || dest_row >= bitmap.GetHeight()) { continue; } uint8_t* src_scan = src_buf + row * src_pitch + (start_col - left) * 3; uint8_t* dest_scan = dest_buf + dest_row * dest_pitch + (start_col << 2); if (bBGRStripe) { if (x_subpixel == 0) { for (int col = start_col; col < end_col; col++) { int src_alpha = src_scan[2]; src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[1]; src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[0]; src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } else if (x_subpixel == 1) { int src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); if (start_col > left) { src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); } dest_scan[3] = 255; dest_scan += 4; src_scan += 3; for (int col = start_col + 1; col < end_col - 1; col++) { int src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } else { int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); if (start_col > left) { src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); } dest_scan[3] = 255; dest_scan += 4; src_scan += 3; for (int col = start_col + 1; col < end_col - 1; col++) { int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } } else { if (x_subpixel == 0) { for (int col = start_col; col < end_col; col++) { if (bNormal) { int src_alpha1 = (src_scan[0] + src_scan[1] + src_scan[2]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; uint8_t back_alpha = dest_scan[3]; if (back_alpha == 0) { FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_alpha1, r, g, b)); dest_scan += 4; src_scan += 3; continue; } if (src_alpha1 == 0) { dest_scan += 4; src_scan += 3; continue; } uint8_t dest_alpha = back_alpha + src_alpha1 - back_alpha * src_alpha1 / 255; dest_scan[3] = dest_alpha; int alpha_ratio = src_alpha1 * 255 / dest_alpha; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, alpha_ratio)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, alpha_ratio)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, alpha_ratio)); dest_scan += 4; src_scan += 3; continue; } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } else if (x_subpixel == 1) { if (bNormal) { int src_alpha1 = start_col > left ? ((src_scan[-1] + src_scan[0] + src_scan[1]) / 3) : ((src_scan[0] + src_scan[1]) / 3); ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; if (src_alpha1 == 0) { dest_scan += 4; src_scan += 3; } else { uint8_t back_alpha = dest_scan[3]; if (back_alpha == 0) { FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_alpha1, r, g, b)); } else { uint8_t dest_alpha = back_alpha + src_alpha1 - back_alpha * src_alpha1 / 255; dest_scan[3] = dest_alpha; int alpha_ratio = src_alpha1 * 255 / dest_alpha; dest_scan[2] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[2]), r, alpha_ratio)); dest_scan[1] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[1]), g, alpha_ratio)); dest_scan[0] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[0]), b, alpha_ratio)); } dest_scan += 4; src_scan += 3; } } else { if (start_col > left) { int src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } for (int col = start_col + 1; col < end_col; col++) { if (bNormal) { int src_alpha1 = (src_scan[-1] + src_scan[0] + src_scan[1]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; uint8_t back_alpha = dest_scan[3]; if (back_alpha == 0) { FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_alpha1, r, g, b)); dest_scan += 4; src_scan += 3; continue; } if (src_alpha1 == 0) { dest_scan += 4; src_scan += 3; continue; } uint8_t dest_alpha = back_alpha + src_alpha1 - back_alpha * src_alpha1 / 255; dest_scan[3] = dest_alpha; int alpha_ratio = src_alpha1 * 255 / dest_alpha; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, alpha_ratio)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, alpha_ratio)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, alpha_ratio)); dest_scan += 4; src_scan += 3; continue; } int src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } else { if (bNormal) { int src_alpha1 = start_col > left ? ((src_scan[-2] + src_scan[-1] + src_scan[0]) / 3) : ((src_scan[0]) / 3); ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; if (src_alpha1 == 0) { dest_scan += 4; src_scan += 3; } else { uint8_t back_alpha = dest_scan[3]; if (back_alpha == 0) { FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_alpha1, r, g, b)); } else { uint8_t dest_alpha = back_alpha + src_alpha1 - back_alpha * src_alpha1 / 255; dest_scan[3] = dest_alpha; int alpha_ratio = src_alpha1 * 255 / dest_alpha; dest_scan[2] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[2]), r, alpha_ratio)); dest_scan[1] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[1]), g, alpha_ratio)); dest_scan[0] = FX_GAMMA_INVERSE(FXDIB_ALPHA_MERGE( FX_GAMMA(dest_scan[0]), b, alpha_ratio)); } dest_scan += 4; src_scan += 3; } } else { if (start_col > left) { int src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } for (int col = start_col + 1; col < end_col; col++) { if (bNormal) { int src_alpha1 = (src_scan[-2] + src_scan[-1] + src_scan[0]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; uint8_t back_alpha = dest_scan[3]; if (back_alpha == 0) { FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_alpha1, r, g, b)); dest_scan += 4; src_scan += 3; continue; } if (src_alpha1 == 0) { dest_scan += 4; src_scan += 3; continue; } uint8_t dest_alpha = back_alpha + src_alpha1 - back_alpha * src_alpha1 / 255; dest_scan[3] = dest_alpha; int alpha_ratio = src_alpha1 * 255 / dest_alpha; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, alpha_ratio)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, alpha_ratio)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, alpha_ratio)); dest_scan += 4; src_scan += 3; continue; } int src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan[3] = 255; dest_scan += 4; src_scan += 3; } } } } } else { for (int row = 0; row < nrows; row++) { int dest_row = row + top; if (dest_row < 0 || dest_row >= bitmap.GetHeight()) { continue; } uint8_t* src_scan = src_buf + row * src_pitch + (start_col - left) * 3; uint8_t* dest_scan = dest_buf + dest_row * dest_pitch + start_col * Bpp; if (bBGRStripe) { if (x_subpixel == 0) { for (int col = start_col; col < end_col; col++) { int src_alpha = src_scan[2]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } else if (x_subpixel == 1) { int src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); if (start_col > left) { src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); } dest_scan += Bpp; src_scan += 3; for (int col = start_col + 1; col < end_col - 1; col++) { int src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } else { int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); if (start_col > left) { src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); } dest_scan += Bpp; src_scan += 3; for (int col = start_col + 1; col < end_col - 1; col++) { int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } } else { if (x_subpixel == 0) { for (int col = start_col; col < end_col; col++) { if (bNormal) { int src_alpha1 = (src_scan[0] + src_scan[1] + src_scan[2]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; if (src_alpha1 == 0) { dest_scan += Bpp; src_scan += 3; continue; } dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha1)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha1)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha1)); dest_scan += Bpp; src_scan += 3; continue; } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[2]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } else if (x_subpixel == 1) { if (bNormal) { int src_alpha1 = start_col > left ? (src_scan[0] + src_scan[1] + src_scan[-1]) / 3 : (src_scan[0] + src_scan[1]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha1)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha1)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha1)); dest_scan += Bpp; src_scan += 3; } else { if (start_col > left) { int src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } for (int col = start_col + 1; col < end_col; col++) { if (bNormal) { int src_alpha1 = (src_scan[0] + src_scan[1] + src_scan[-1]) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; if (src_alpha1 == 0) { dest_scan += Bpp; src_scan += 3; continue; } dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha1)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha1)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha1)); dest_scan += Bpp; src_scan += 3; continue; } int src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[1]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } else { if (bNormal) { int src_alpha1 = start_col > left ? (src_scan[0] + src_scan[-2] + src_scan[-1]) / 3 : src_scan[0] / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha1)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha1)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha1)); dest_scan += Bpp; src_scan += 3; } else { if (start_col > left) { int src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); } int src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } for (int col = start_col + 1; col < end_col; col++) { if (bNormal) { int src_alpha1 = ((int)(src_scan[0]) + (int)(src_scan[-2]) + (int)(src_scan[-1])) / 3; ADJUST_ALPHA(dest_scan[2], r, src_alpha1, nativetext_flags, a); src_alpha1 = src_alpha1 * a / 255; if (src_alpha1 == 0) { dest_scan += Bpp; src_scan += 3; continue; } dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha1)); dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha1)); dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha1)); dest_scan += Bpp; src_scan += 3; continue; } int src_alpha = src_scan[-2]; ADJUST_ALPHA(dest_scan[2], r, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[2] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[2]), r, src_alpha)); src_alpha = src_scan[-1]; ADJUST_ALPHA(dest_scan[1], g, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[1] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[1]), g, src_alpha)); src_alpha = src_scan[0]; ADJUST_ALPHA(dest_scan[0], b, src_alpha, nativetext_flags, a); src_alpha = src_alpha * a / 255; dest_scan[0] = FX_GAMMA_INVERSE( FXDIB_ALPHA_MERGE(FX_GAMMA(dest_scan[0]), b, src_alpha)); dest_scan += Bpp; src_scan += 3; } } } } } } if (bitmap.IsAlphaMask()) { SetBitMask(&bitmap, bmp_rect.left, bmp_rect.top, fill_color, alpha_flag, pIccTransform); } else { SetDIBits(&bitmap, bmp_rect.left, bmp_rect.top); } FX_Free(pGlyphAndPos); return TRUE; } FX_BOOL CFX_RenderDevice::DrawTextPath(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, CFX_FontCache* pCache, FX_FLOAT font_size, const CFX_Matrix* pText2User, const CFX_Matrix* pUser2Device, const CFX_GraphStateData* pGraphState, uint32_t fill_color, FX_ARGB stroke_color, CFX_PathData* pClippingPath, int nFlag, int alpha_flag, void* pIccTransform, int blend_type) { if (!pCache) { pCache = CFX_GEModule::Get()->GetFontCache(); } CFX_FaceCache* pFaceCache = pCache->GetCachedFace(pFont); FX_FONTCACHE_DEFINE(pCache, pFont); for (int iChar = 0; iChar < nChars; iChar++) { const FXTEXT_CHARPOS& charpos = pCharPos[iChar]; CFX_Matrix matrix; if (charpos.m_bGlyphAdjust) matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, charpos.m_OriginY); const CFX_PathData* pPath = pFaceCache->LoadGlyphPath( pFont, charpos.m_GlyphIndex, charpos.m_FontCharWidth); if (!pPath) { continue; } matrix.Concat(*pText2User); CFX_PathData TransformedPath(*pPath); TransformedPath.Transform(&matrix); FX_BOOL bHasAlpha = FXGETFLAG_COLORTYPE(alpha_flag) ? (FXGETFLAG_ALPHA_FILL(alpha_flag) || FXGETFLAG_ALPHA_STROKE(alpha_flag)) : (fill_color || stroke_color); if (bHasAlpha) { int fill_mode = nFlag; if (FXGETFLAG_COLORTYPE(alpha_flag)) { if (FXGETFLAG_ALPHA_FILL(alpha_flag)) { fill_mode |= FXFILL_WINDING; } } else { if (fill_color) { fill_mode |= FXFILL_WINDING; } } fill_mode |= FX_FILL_TEXT_MODE; if (!DrawPath(&TransformedPath, pUser2Device, pGraphState, fill_color, stroke_color, fill_mode, alpha_flag, pIccTransform, blend_type)) { return FALSE; } } if (pClippingPath) { pClippingPath->Append(&TransformedPath, pUser2Device); } } return TRUE; } CFX_FontCache::CFX_FontCache() {} CFX_FontCache::~CFX_FontCache() { FreeCache(TRUE); } CFX_FaceCache* CFX_FontCache::GetCachedFace(CFX_Font* pFont) { FXFT_Face internal_face = pFont->GetFace(); const bool bExternal = !internal_face; FXFT_Face face = bExternal ? (FXFT_Face)pFont->GetSubstFont()->m_ExtHandle : internal_face; CFX_FTCacheMap& map = bExternal ? m_ExtFaceMap : m_FTFaceMap; auto it = map.find(face); if (it != map.end()) { CFX_CountedFaceCache* counted_face_cache = it->second; counted_face_cache->m_nCount++; return counted_face_cache->m_Obj; } CFX_FaceCache* face_cache = new CFX_FaceCache(bExternal ? nullptr : face); CFX_CountedFaceCache* counted_face_cache = new CFX_CountedFaceCache; counted_face_cache->m_nCount = 2; counted_face_cache->m_Obj = face_cache; map[face] = counted_face_cache; return face_cache; } void CFX_FontCache::ReleaseCachedFace(CFX_Font* pFont) { FXFT_Face internal_face = pFont->GetFace(); const bool bExternal = !internal_face; FXFT_Face face = bExternal ? (FXFT_Face)pFont->GetSubstFont()->m_ExtHandle : internal_face; CFX_FTCacheMap& map = bExternal ? m_ExtFaceMap : m_FTFaceMap; auto it = map.find(face); if (it == map.end()) return; CFX_CountedFaceCache* counted_face_cache = it->second; if (counted_face_cache->m_nCount > 1) { counted_face_cache->m_nCount--; } } void CFX_FontCache::FreeCache(FX_BOOL bRelease) { for (auto it = m_FTFaceMap.begin(); it != m_FTFaceMap.end();) { auto curr_it = it++; CFX_CountedFaceCache* cache = curr_it->second; if (bRelease || cache->m_nCount < 2) { delete cache->m_Obj; delete cache; m_FTFaceMap.erase(curr_it); } } for (auto it = m_ExtFaceMap.begin(); it != m_ExtFaceMap.end();) { auto curr_it = it++; CFX_CountedFaceCache* cache = curr_it->second; if (bRelease || cache->m_nCount < 2) { delete cache->m_Obj; delete cache; m_ExtFaceMap.erase(curr_it); } } } CFX_FaceCache::CFX_FaceCache(FXFT_Face face) : m_Face(face) {} CFX_FaceCache::~CFX_FaceCache() { for (const auto& pair : m_SizeMap) { delete pair.second; } m_SizeMap.clear(); for (const auto& pair : m_PathMap) { delete pair.second; } m_PathMap.clear(); } #if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ void CFX_FaceCache::InitPlatform() {} #endif CFX_GlyphBitmap* CFX_FaceCache::LookUpGlyphBitmap( CFX_Font* pFont, const CFX_Matrix* pMatrix, CFX_ByteStringC& FaceGlyphsKey, uint32_t glyph_index, FX_BOOL bFontStyle, int dest_width, int anti_alias) { CFX_SizeGlyphCache* pSizeCache; auto it = m_SizeMap.find(FaceGlyphsKey); if (it == m_SizeMap.end()) { pSizeCache = new CFX_SizeGlyphCache; m_SizeMap[FaceGlyphsKey] = pSizeCache; } else { pSizeCache = it->second; } auto it2 = pSizeCache->m_GlyphMap.find(glyph_index); if (it2 != pSizeCache->m_GlyphMap.end()) return it2->second; CFX_GlyphBitmap* pGlyphBitmap = RenderGlyph(pFont, glyph_index, bFontStyle, pMatrix, dest_width, anti_alias); if (!pGlyphBitmap) return nullptr; pSizeCache->m_GlyphMap[glyph_index] = pGlyphBitmap; return pGlyphBitmap; } const CFX_GlyphBitmap* CFX_FaceCache::LoadGlyphBitmap(CFX_Font* pFont, uint32_t glyph_index, FX_BOOL bFontStyle, const CFX_Matrix* pMatrix, int dest_width, int anti_alias, int& text_flags) { if (glyph_index == (uint32_t)-1) { return NULL; } _CFX_UniqueKeyGen keygen; #if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ if (pFont->GetSubstFont()) keygen.Generate(9, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias, pFont->GetSubstFont()->m_Weight, pFont->GetSubstFont()->m_ItalicAngle, pFont->IsVertical()); else keygen.Generate(6, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias); #else if (text_flags & FXTEXT_NO_NATIVETEXT) { if (pFont->GetSubstFont()) keygen.Generate(9, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias, pFont->GetSubstFont()->m_Weight, pFont->GetSubstFont()->m_ItalicAngle, pFont->IsVertical()); else keygen.Generate(6, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias); } else { if (pFont->GetSubstFont()) keygen.Generate(10, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias, pFont->GetSubstFont()->m_Weight, pFont->GetSubstFont()->m_ItalicAngle, pFont->IsVertical(), 3); else keygen.Generate(7, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias, 3); } #endif CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen); #if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ return LookUpGlyphBitmap(pFont, pMatrix, FaceGlyphsKey, glyph_index, bFontStyle, dest_width, anti_alias); #else if (text_flags & FXTEXT_NO_NATIVETEXT) { return LookUpGlyphBitmap(pFont, pMatrix, FaceGlyphsKey, glyph_index, bFontStyle, dest_width, anti_alias); } CFX_GlyphBitmap* pGlyphBitmap; auto it = m_SizeMap.find(FaceGlyphsKey); if (it != m_SizeMap.end()) { CFX_SizeGlyphCache* pSizeCache = it->second; auto it2 = pSizeCache->m_GlyphMap.find(glyph_index); if (it2 != pSizeCache->m_GlyphMap.end()) return it2->second; pGlyphBitmap = RenderGlyph_Nativetext(pFont, glyph_index, pMatrix, dest_width, anti_alias); if (pGlyphBitmap) { pSizeCache->m_GlyphMap[glyph_index] = pGlyphBitmap; return pGlyphBitmap; } } else { pGlyphBitmap = RenderGlyph_Nativetext(pFont, glyph_index, pMatrix, dest_width, anti_alias); if (pGlyphBitmap) { CFX_SizeGlyphCache* pSizeCache = new CFX_SizeGlyphCache; m_SizeMap[FaceGlyphsKey] = pSizeCache; pSizeCache->m_GlyphMap[glyph_index] = pGlyphBitmap; return pGlyphBitmap; } } if (pFont->GetSubstFont()) keygen.Generate(9, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias, pFont->GetSubstFont()->m_Weight, pFont->GetSubstFont()->m_ItalicAngle, pFont->IsVertical()); else keygen.Generate(6, (int)(pMatrix->a * 10000), (int)(pMatrix->b * 10000), (int)(pMatrix->c * 10000), (int)(pMatrix->d * 10000), dest_width, anti_alias); CFX_ByteStringC FaceGlyphsKey2(keygen.m_Key, keygen.m_KeyLen); text_flags |= FXTEXT_NO_NATIVETEXT; return LookUpGlyphBitmap(pFont, pMatrix, FaceGlyphsKey2, glyph_index, bFontStyle, dest_width, anti_alias); #endif } CFX_SizeGlyphCache::~CFX_SizeGlyphCache() { for (const auto& pair : m_GlyphMap) { delete pair.second; } m_GlyphMap.clear(); } #define CONTRAST_RAMP_STEP 1 void CFX_Font::AdjustMMParams(int glyph_index, int dest_width, int weight) { FXFT_MM_Var pMasters = NULL; FXFT_Get_MM_Var(m_Face, &pMasters); if (!pMasters) { return; } long coords[2]; if (weight == 0) { coords[0] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 0)) / 65536; } else { coords[0] = weight; } if (dest_width == 0) { coords[1] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; } else { int min_param = FXFT_Get_MM_Axis_Min(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; int max_param = FXFT_Get_MM_Axis_Max(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; coords[1] = min_param; (void)FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); (void)FXFT_Load_Glyph( m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); int min_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face); coords[1] = max_param; (void)FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); (void)FXFT_Load_Glyph( m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); int max_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face); if (max_width == min_width) { FXFT_Free(m_Face, pMasters); return; } int param = min_param + (max_param - min_param) * (dest_width - min_width) / (max_width - min_width); coords[1] = param; } FXFT_Free(m_Face, pMasters); FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); } static const size_t ANGLESKEW_ARRAY_SIZE = 30; static const char g_AngleSkew[ANGLESKEW_ARRAY_SIZE] = { 0, 2, 3, 5, 7, 9, 11, 12, 14, 16, 18, 19, 21, 23, 25, 27, 29, 31, 32, 34, 36, 38, 40, 42, 45, 47, 49, 51, 53, 55, }; static const size_t WEIGHTPOW_ARRAY_SIZE = 100; static const uint8_t g_WeightPow[WEIGHTPOW_ARRAY_SIZE] = { 0, 3, 6, 7, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 35, 36, 36, 37, 37, 37, 38, 38, 38, 39, 39, 39, 40, 40, 40, 41, 41, 41, 42, 42, 42, 42, 43, 43, 43, 44, 44, 44, 44, 45, 45, 45, 45, 46, 46, 46, 46, 47, 47, 47, 47, 48, 48, 48, 48, 48, 49, 49, 49, 49, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 52, 52, 52, 52, 52, 53, 53, 53, 53, 53, }; static const uint8_t g_WeightPow_11[WEIGHTPOW_ARRAY_SIZE] = { 0, 4, 7, 8, 9, 10, 12, 13, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 39, 40, 40, 41, 41, 41, 42, 42, 42, 43, 43, 43, 44, 44, 44, 45, 45, 45, 46, 46, 46, 46, 43, 47, 47, 48, 48, 48, 48, 45, 50, 50, 50, 46, 51, 51, 51, 52, 52, 52, 52, 53, 53, 53, 53, 53, 54, 54, 54, 54, 55, 55, 55, 55, 55, 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, }; static const uint8_t g_WeightPow_SHIFTJIS[WEIGHTPOW_ARRAY_SIZE] = { 0, 0, 1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 21, 22, 24, 26, 28, 30, 32, 33, 35, 37, 39, 41, 43, 45, 48, 48, 48, 48, 49, 49, 49, 50, 50, 50, 50, 51, 51, 51, 51, 52, 52, 52, 52, 52, 53, 53, 53, 53, 53, 54, 54, 54, 54, 54, 55, 55, 55, 55, 55, 56, 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 58, 59, 59, 59, 59, 59, 59, 59, 60, 60, 60, 60, 60, 60, 60, 60, }; static void _GammaAdjust(uint8_t* pData, int nWid, int nHei, int src_pitch, const uint8_t* gammaTable) { int count = nHei * src_pitch; for (int i = 0; i < count; i++) { pData[i] = gammaTable[pData[i]]; } } static void _ContrastAdjust(uint8_t* pDataIn, uint8_t* pDataOut, int nWid, int nHei, int nSrcRowBytes, int nDstRowBytes) { int col, row, temp; int max = 0, min = 255; FX_FLOAT rate; for (row = 0; row < nHei; row++) { uint8_t* pRow = pDataIn + row * nSrcRowBytes; for (col = 0; col < nWid; col++) { temp = *pRow++; if (temp > max) { max = temp; } if (temp < min) { min = temp; } } } temp = max - min; if (0 == temp || 255 == temp) { int rowbytes = FXSYS_abs(nSrcRowBytes) > nDstRowBytes ? nDstRowBytes : FXSYS_abs(nSrcRowBytes); for (row = 0; row < nHei; row++) { FXSYS_memcpy(pDataOut + row * nDstRowBytes, pDataIn + row * nSrcRowBytes, rowbytes); } return; } rate = 255.f / temp; for (row = 0; row < nHei; row++) { uint8_t* pSrcRow = pDataIn + row * nSrcRowBytes; uint8_t* pDstRow = pDataOut + row * nDstRowBytes; for (col = 0; col < nWid; col++) { temp = (int)((*(pSrcRow++) - min) * rate + 0.5); if (temp > 255) { temp = 255; } else if (temp < 0) { temp = 0; } *pDstRow++ = (uint8_t)temp; } } } CFX_GlyphBitmap* CFX_FaceCache::RenderGlyph(CFX_Font* pFont, uint32_t glyph_index, FX_BOOL bFontStyle, const CFX_Matrix* pMatrix, int dest_width, int anti_alias) { if (!m_Face) { return NULL; } FXFT_Matrix ft_matrix; ft_matrix.xx = (signed long)(pMatrix->GetA() / 64 * 65536); ft_matrix.xy = (signed long)(pMatrix->GetC() / 64 * 65536); ft_matrix.yx = (signed long)(pMatrix->GetB() / 64 * 65536); ft_matrix.yy = (signed long)(pMatrix->GetD() / 64 * 65536); FX_BOOL bUseCJKSubFont = FALSE; const CFX_SubstFont* pSubstFont = pFont->GetSubstFont(); if (pSubstFont) { bUseCJKSubFont = pSubstFont->m_bSubstOfCJK && bFontStyle; int skew = 0; if (bUseCJKSubFont) { skew = pSubstFont->m_bItlicCJK ? -15 : 0; } else { skew = pSubstFont->m_ItalicAngle; } if (skew) { skew = skew <= -ANGLESKEW_ARRAY_SIZE ? -58 : -g_AngleSkew[-skew]; if (pFont->IsVertical()) { ft_matrix.yx += ft_matrix.yy * skew / 100; } else { ft_matrix.xy += -ft_matrix.xx * skew / 100; } } if (pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) { pFont->AdjustMMParams(glyph_index, dest_width, pFont->GetSubstFont()->m_Weight); } } ScopedFontTransform scoped_transform(m_Face, &ft_matrix); int load_flags = (m_Face->face_flags & FT_FACE_FLAG_SFNT) ? FXFT_LOAD_NO_BITMAP : (FXFT_LOAD_NO_BITMAP | FT_LOAD_NO_HINTING); int error = FXFT_Load_Glyph(m_Face, glyph_index, load_flags); if (error) { // if an error is returned, try to reload glyphs without hinting. if (load_flags & FT_LOAD_NO_HINTING || load_flags & FT_LOAD_NO_SCALE) { return NULL; } load_flags |= FT_LOAD_NO_HINTING; error = FXFT_Load_Glyph(m_Face, glyph_index, load_flags); if (error) { return NULL; } } int weight = 0; if (bUseCJKSubFont) { weight = pSubstFont->m_WeightCJK; } else { weight = pSubstFont ? pSubstFont->m_Weight : 0; } if (pSubstFont && !(pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) && weight > 400) { int index = (weight - 400) / 10; if (index >= WEIGHTPOW_ARRAY_SIZE) { return NULL; } int level = 0; if (pSubstFont->m_Charset == FXFONT_SHIFTJIS_CHARSET) { level = g_WeightPow_SHIFTJIS[index] * 2 * (FXSYS_abs((int)(ft_matrix.xx)) + FXSYS_abs((int)(ft_matrix.xy))) / 36655; } else { level = g_WeightPow_11[index] * (FXSYS_abs((int)(ft_matrix.xx)) + FXSYS_abs((int)(ft_matrix.xy))) / 36655; } FXFT_Outline_Embolden(FXFT_Get_Glyph_Outline(m_Face), level); } FXFT_Library_SetLcdFilter(CFX_GEModule::Get()->GetFontMgr()->GetFTLibrary(), FT_LCD_FILTER_DEFAULT); error = FXFT_Render_Glyph(m_Face, anti_alias); if (error) { return NULL; } int bmwidth = FXFT_Get_Bitmap_Width(FXFT_Get_Glyph_Bitmap(m_Face)); int bmheight = FXFT_Get_Bitmap_Rows(FXFT_Get_Glyph_Bitmap(m_Face)); if (bmwidth > 2048 || bmheight > 2048) { return NULL; } int dib_width = bmwidth; CFX_GlyphBitmap* pGlyphBitmap = new CFX_GlyphBitmap; pGlyphBitmap->m_Bitmap.Create( dib_width, bmheight, anti_alias == FXFT_RENDER_MODE_MONO ? FXDIB_1bppMask : FXDIB_8bppMask); pGlyphBitmap->m_Left = FXFT_Get_Glyph_BitmapLeft(m_Face); pGlyphBitmap->m_Top = FXFT_Get_Glyph_BitmapTop(m_Face); int dest_pitch = pGlyphBitmap->m_Bitmap.GetPitch(); int src_pitch = FXFT_Get_Bitmap_Pitch(FXFT_Get_Glyph_Bitmap(m_Face)); uint8_t* pDestBuf = pGlyphBitmap->m_Bitmap.GetBuffer(); uint8_t* pSrcBuf = (uint8_t*)FXFT_Get_Bitmap_Buffer(FXFT_Get_Glyph_Bitmap(m_Face)); if (anti_alias != FXFT_RENDER_MODE_MONO && FXFT_Get_Bitmap_PixelMode(FXFT_Get_Glyph_Bitmap(m_Face)) == FXFT_PIXEL_MODE_MONO) { int bytes = anti_alias == FXFT_RENDER_MODE_LCD ? 3 : 1; for (int i = 0; i < bmheight; i++) for (int n = 0; n < bmwidth; n++) { uint8_t data = (pSrcBuf[i * src_pitch + n / 8] & (0x80 >> (n % 8))) ? 255 : 0; for (int b = 0; b < bytes; b++) { pDestBuf[i * dest_pitch + n * bytes + b] = data; } } } else { FXSYS_memset(pDestBuf, 0, dest_pitch * bmheight); if (anti_alias == FXFT_RENDER_MODE_MONO && FXFT_Get_Bitmap_PixelMode(FXFT_Get_Glyph_Bitmap(m_Face)) == FXFT_PIXEL_MODE_MONO) { int rowbytes = FXSYS_abs(src_pitch) > dest_pitch ? dest_pitch : FXSYS_abs(src_pitch); for (int row = 0; row < bmheight; row++) { FXSYS_memcpy(pDestBuf + row * dest_pitch, pSrcBuf + row * src_pitch, rowbytes); } } else { _ContrastAdjust(pSrcBuf, pDestBuf, bmwidth, bmheight, src_pitch, dest_pitch); _GammaAdjust(pDestBuf, bmwidth, bmheight, dest_pitch, CFX_GEModule::Get()->GetTextGammaTable()); } } return pGlyphBitmap; } const CFX_PathData* CFX_FaceCache::LoadGlyphPath(CFX_Font* pFont, uint32_t glyph_index, int dest_width) { if (!m_Face || glyph_index == (uint32_t)-1) return nullptr; uint32_t key = glyph_index; if (pFont->GetSubstFont()) { key += (((pFont->GetSubstFont()->m_Weight / 16) << 15) + ((pFont->GetSubstFont()->m_ItalicAngle / 2) << 21) + ((dest_width / 16) << 25) + (pFont->IsVertical() << 31)); } auto it = m_PathMap.find(key); if (it != m_PathMap.end()) return it->second; CFX_PathData* pGlyphPath = pFont->LoadGlyphPath(glyph_index, dest_width); m_PathMap[key] = pGlyphPath; return pGlyphPath; } typedef struct { FX_BOOL m_bCount; int m_PointCount; FX_PATHPOINT* m_pPoints; int m_CurX; int m_CurY; FX_FLOAT m_CoordUnit; } OUTLINE_PARAMS; void _Outline_CheckEmptyContour(OUTLINE_PARAMS* param) { if (param->m_PointCount >= 2 && param->m_pPoints[param->m_PointCount - 2].m_Flag == FXPT_MOVETO && param->m_pPoints[param->m_PointCount - 2].m_PointX == param->m_pPoints[param->m_PointCount - 1].m_PointX && param->m_pPoints[param->m_PointCount - 2].m_PointY == param->m_pPoints[param->m_PointCount - 1].m_PointY) { param->m_PointCount -= 2; } if (param->m_PointCount >= 4 && param->m_pPoints[param->m_PointCount - 4].m_Flag == FXPT_MOVETO && param->m_pPoints[param->m_PointCount - 3].m_Flag == FXPT_BEZIERTO && param->m_pPoints[param->m_PointCount - 3].m_PointX == param->m_pPoints[param->m_PointCount - 4].m_PointX && param->m_pPoints[param->m_PointCount - 3].m_PointY == param->m_pPoints[param->m_PointCount - 4].m_PointY && param->m_pPoints[param->m_PointCount - 2].m_PointX == param->m_pPoints[param->m_PointCount - 4].m_PointX && param->m_pPoints[param->m_PointCount - 2].m_PointY == param->m_pPoints[param->m_PointCount - 4].m_PointY && param->m_pPoints[param->m_PointCount - 1].m_PointX == param->m_pPoints[param->m_PointCount - 4].m_PointX && param->m_pPoints[param->m_PointCount - 1].m_PointY == param->m_pPoints[param->m_PointCount - 4].m_PointY) { param->m_PointCount -= 4; } } extern "C" { static int _Outline_MoveTo(const FXFT_Vector* to, void* user) { OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; if (!param->m_bCount) { _Outline_CheckEmptyContour(param); param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_Flag = FXPT_MOVETO; param->m_CurX = to->x; param->m_CurY = to->y; if (param->m_PointCount) { param->m_pPoints[param->m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; } } param->m_PointCount++; return 0; } }; extern "C" { static int _Outline_LineTo(const FXFT_Vector* to, void* user) { OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; if (!param->m_bCount) { param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_Flag = FXPT_LINETO; param->m_CurX = to->x; param->m_CurY = to->y; } param->m_PointCount++; return 0; } }; extern "C" { static int _Outline_ConicTo(const FXFT_Vector* control, const FXFT_Vector* to, void* user) { OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; if (!param->m_bCount) { param->m_pPoints[param->m_PointCount].m_PointX = (param->m_CurX + (control->x - param->m_CurX) * 2 / 3) / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_PointY = (param->m_CurY + (control->y - param->m_CurY) * 2 / 3) / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; param->m_pPoints[param->m_PointCount + 1].m_PointX = (control->x + (to->x - control->x) / 3) / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 1].m_PointY = (control->y + (to->y - control->y) / 3) / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; param->m_pPoints[param->m_PointCount + 2].m_PointX = to->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 2].m_PointY = to->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; param->m_CurX = to->x; param->m_CurY = to->y; } param->m_PointCount += 3; return 0; } }; extern "C" { static int _Outline_CubicTo(const FXFT_Vector* control1, const FXFT_Vector* control2, const FXFT_Vector* to, void* user) { OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; if (!param->m_bCount) { param->m_pPoints[param->m_PointCount].m_PointX = control1->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_PointY = control1->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; param->m_pPoints[param->m_PointCount + 1].m_PointX = control2->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 1].m_PointY = control2->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; param->m_pPoints[param->m_PointCount + 2].m_PointX = to->x / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 2].m_PointY = to->y / param->m_CoordUnit; param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; param->m_CurX = to->x; param->m_CurY = to->y; } param->m_PointCount += 3; return 0; } }; CFX_PathData* CFX_Font::LoadGlyphPath(uint32_t glyph_index, int dest_width) { if (!m_Face) { return NULL; } FXFT_Set_Pixel_Sizes(m_Face, 0, 64); FXFT_Matrix ft_matrix = {65536, 0, 0, 65536}; if (m_pSubstFont) { if (m_pSubstFont->m_ItalicAngle) { int skew = m_pSubstFont->m_ItalicAngle; skew = skew <= -ANGLESKEW_ARRAY_SIZE ? -58 : -g_AngleSkew[-skew]; if (m_bVertical) { ft_matrix.yx += ft_matrix.yy * skew / 100; } else { ft_matrix.xy += -ft_matrix.xx * skew / 100; } } if (m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) { AdjustMMParams(glyph_index, dest_width, m_pSubstFont->m_Weight); } } ScopedFontTransform scoped_transform(m_Face, &ft_matrix); int load_flags = FXFT_LOAD_NO_BITMAP; if (!(m_Face->face_flags & FT_FACE_FLAG_SFNT) || !FT_IS_TRICKY(m_Face)) { load_flags |= FT_LOAD_NO_HINTING; } int error = FXFT_Load_Glyph(m_Face, glyph_index, load_flags); if (error) { return NULL; } if (m_pSubstFont && !(m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) && m_pSubstFont->m_Weight > 400) { int index = (m_pSubstFont->m_Weight - 400) / 10; if (index >= WEIGHTPOW_ARRAY_SIZE) index = WEIGHTPOW_ARRAY_SIZE - 1; int level = 0; if (m_pSubstFont->m_Charset == FXFONT_SHIFTJIS_CHARSET) { level = g_WeightPow_SHIFTJIS[index] * 2 * 65536 / 36655; } else { level = g_WeightPow[index] * 2; } FXFT_Outline_Embolden(FXFT_Get_Glyph_Outline(m_Face), level); } FXFT_Outline_Funcs funcs; funcs.move_to = _Outline_MoveTo; funcs.line_to = _Outline_LineTo; funcs.conic_to = _Outline_ConicTo; funcs.cubic_to = _Outline_CubicTo; funcs.shift = 0; funcs.delta = 0; OUTLINE_PARAMS params; params.m_bCount = TRUE; params.m_PointCount = 0; FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); if (params.m_PointCount == 0) { return NULL; } CFX_PathData* pPath = new CFX_PathData; pPath->SetPointCount(params.m_PointCount); params.m_bCount = FALSE; params.m_PointCount = 0; params.m_pPoints = pPath->GetPoints(); params.m_CurX = params.m_CurY = 0; params.m_CoordUnit = 64 * 64.0; FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); _Outline_CheckEmptyContour(¶ms); pPath->TrimPoints(params.m_PointCount); if (params.m_PointCount) { pPath->GetPoints()[params.m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; } return pPath; } void _CFX_UniqueKeyGen::Generate(int count, ...) { va_list argList; va_start(argList, count); for (int i = 0; i < count; i++) { int p = va_arg(argList, int); ((uint32_t*)m_Key)[i] = p; } va_end(argList); m_KeyLen = count * sizeof(uint32_t); }