diff options
Diffstat (limited to 'core/fxge/ge/fx_ge_text.cpp')
| -rw-r--r-- | core/fxge/ge/fx_ge_text.cpp | 1872 |
1 files changed, 1872 insertions, 0 deletions
diff --git a/core/fxge/ge/fx_ge_text.cpp b/core/fxge/ge/fx_ge_text.cpp new file mode 100644 index 0000000000..3f001d2f96 --- /dev/null +++ b/core/fxge/ge/fx_ge_text.cpp @@ -0,0 +1,1872 @@ +// 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, + FX_DWORD 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, + FX_DWORD fill_color, + FX_DWORD 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, r, g, b; + 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, + FX_DWORD 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, + FX_DWORD 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, + FX_DWORD glyph_index, + FX_BOOL bFontStyle, + const CFX_Matrix* pMatrix, + int dest_width, + int anti_alias, + int& text_flags) { + if (glyph_index == (FX_DWORD)-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, + FX_DWORD 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, + FX_DWORD glyph_index, + int dest_width) { + if (!m_Face || glyph_index == (FX_DWORD)-1) + return nullptr; + + FX_DWORD 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(FX_DWORD 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); + ((FX_DWORD*)m_Key)[i] = p; + } + va_end(argList); + m_KeyLen = count * sizeof(FX_DWORD); +} |