diff options
Diffstat (limited to 'core/fxge/ge/cfx_renderdevice.cpp')
| -rw-r--r-- | core/fxge/ge/cfx_renderdevice.cpp | 1135 |
1 files changed, 0 insertions, 1135 deletions
diff --git a/core/fxge/ge/cfx_renderdevice.cpp b/core/fxge/ge/cfx_renderdevice.cpp deleted file mode 100644 index 34c974439a..0000000000 --- a/core/fxge/ge/cfx_renderdevice.cpp +++ /dev/null @@ -1,1135 +0,0 @@ -// Copyright 2016 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/cfx_renderdevice.h" - -#include <algorithm> -#include <memory> -#include <utility> -#include <vector> - -#include "core/fxcrt/fx_safe_types.h" -#include "core/fxge/cfx_defaultrenderdevice.h" -#include "core/fxge/cfx_facecache.h" -#include "core/fxge/cfx_gemodule.h" -#include "core/fxge/cfx_graphstatedata.h" -#include "core/fxge/cfx_pathdata.h" -#include "core/fxge/dib/cfx_imagerenderer.h" -#include "core/fxge/ifx_renderdevicedriver.h" - -#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ -#include "third_party/skia/include/core/SkTypes.h" -#endif - -namespace { - -void AdjustGlyphSpace(std::vector<FXTEXT_GLYPHPOS>* pGlyphAndPos) { - ASSERT(pGlyphAndPos->size() > 1); - std::vector<FXTEXT_GLYPHPOS>& glyphs = *pGlyphAndPos; - bool bVertical = glyphs.back().m_Origin.x == glyphs.front().m_Origin.x; - if (!bVertical && (glyphs.back().m_Origin.y != glyphs.front().m_Origin.y)) - return; - - for (size_t i = glyphs.size() - 1; i > 1; --i) { - FXTEXT_GLYPHPOS& next = glyphs[i]; - int next_origin = bVertical ? next.m_Origin.y : next.m_Origin.x; - float next_origin_f = bVertical ? next.m_fOrigin.y : next.m_fOrigin.x; - - FXTEXT_GLYPHPOS& current = glyphs[i - 1]; - int& current_origin = bVertical ? current.m_Origin.y : current.m_Origin.x; - float current_origin_f = - bVertical ? current.m_fOrigin.y : current.m_fOrigin.x; - - int space = next_origin - current_origin; - float space_f = next_origin_f - current_origin_f; - float error = fabs(space_f) - fabs(static_cast<float>(space)); - if (error > 0.5f) - current_origin += space > 0 ? -1 : 1; - } -} - -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, -}; - -int TextGammaAdjust(int value) { - ASSERT(value >= 0); - ASSERT(value <= 255); - return g_TextGammaAdjust[value]; -} - -int CalcAlpha(int src, int alpha) { - return src * alpha / 255; -} - -void Merge(uint8_t src, int channel, int alpha, uint8_t* dest) { - *dest = FXDIB_ALPHA_MERGE(*dest, channel, CalcAlpha(src, alpha)); -} - -void MergeGammaAdjust(uint8_t src, int channel, int alpha, uint8_t* dest) { - *dest = - FXDIB_ALPHA_MERGE(*dest, channel, CalcAlpha(TextGammaAdjust(src), alpha)); -} - -void MergeGammaAdjustBgr(const uint8_t* src, - int r, - int g, - int b, - int a, - uint8_t* dest) { - MergeGammaAdjust(src[0], b, a, &dest[0]); - MergeGammaAdjust(src[1], g, a, &dest[1]); - MergeGammaAdjust(src[2], r, a, &dest[2]); -} - -void MergeGammaAdjustRgb(const uint8_t* src, - int r, - int g, - int b, - int a, - uint8_t* dest) { - MergeGammaAdjust(src[2], b, a, &dest[0]); - MergeGammaAdjust(src[1], g, a, &dest[1]); - MergeGammaAdjust(src[0], r, a, &dest[2]); -} - -int AverageRgb(const uint8_t* src) { - return (src[0] + src[1] + src[2]) / 3; -} - -uint8_t CalculateDestAlpha(uint8_t back_alpha, int src_alpha) { - return back_alpha + src_alpha - back_alpha * src_alpha / 255; -} - -void ApplyDestAlpha(uint8_t back_alpha, - int src_alpha, - int r, - int g, - int b, - uint8_t* dest) { - uint8_t dest_alpha = CalculateDestAlpha(back_alpha, src_alpha); - int alpha_ratio = src_alpha * 255 / dest_alpha; - dest[0] = FXDIB_ALPHA_MERGE(dest[0], b, alpha_ratio); - dest[1] = FXDIB_ALPHA_MERGE(dest[1], g, alpha_ratio); - dest[2] = FXDIB_ALPHA_MERGE(dest[2], r, alpha_ratio); - dest[3] = dest_alpha; -} - -void NormalizeRgbDst(int src_value, int r, int g, int b, int a, uint8_t* dest) { - int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); - dest[0] = FXDIB_ALPHA_MERGE(dest[0], b, src_alpha); - dest[1] = FXDIB_ALPHA_MERGE(dest[1], g, src_alpha); - dest[2] = FXDIB_ALPHA_MERGE(dest[2], r, src_alpha); -} - -void NormalizeRgbSrc(int src_value, int r, int g, int b, int a, uint8_t* dest) { - int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); - if (src_alpha == 0) - return; - - dest[0] = FXDIB_ALPHA_MERGE(dest[0], b, src_alpha); - dest[1] = FXDIB_ALPHA_MERGE(dest[1], g, src_alpha); - dest[2] = FXDIB_ALPHA_MERGE(dest[2], r, src_alpha); -} - -void NormalizeArgbDest(int src_value, - int r, - int g, - int b, - int a, - uint8_t* dest) { - int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); - uint8_t back_alpha = dest[3]; - if (back_alpha == 0) { - FXARGB_SETDIB(dest, FXARGB_MAKE(src_alpha, r, g, b)); - } else if (src_alpha != 0) { - ApplyDestAlpha(back_alpha, src_alpha, r, g, b, dest); - } -} - -void NormalizeArgbSrc(int src_value, - int r, - int g, - int b, - int a, - uint8_t* dest) { - int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); - if (src_alpha == 0) - return; - - uint8_t back_alpha = dest[3]; - if (back_alpha == 0) { - FXARGB_SETDIB(dest, FXARGB_MAKE(src_alpha, r, g, b)); - } else { - ApplyDestAlpha(back_alpha, src_alpha, r, g, b, dest); - } -} - -void NextPixel(uint8_t** src_scan, uint8_t** dst_scan, int bpp) { - *src_scan += 3; - *dst_scan += bpp; -} - -void SetAlpha(uint8_t* alpha) { - alpha[3] = 255; -} - -void SetAlphaDoNothing(uint8_t* alpha) {} - -void DrawNormalTextHelper(const CFX_RetainPtr<CFX_DIBitmap>& bitmap, - const CFX_RetainPtr<CFX_DIBitmap>& pGlyph, - int nrows, - int left, - int top, - int start_col, - int end_col, - bool bNormal, - bool bBGRStripe, - int x_subpixel, - int a, - int r, - int g, - int b) { - const bool has_alpha = bitmap->GetFormat() == FXDIB_Argb; - uint8_t* src_buf = pGlyph->GetBuffer(); - int src_pitch = pGlyph->GetPitch(); - uint8_t* dest_buf = bitmap->GetBuffer(); - int dest_pitch = bitmap->GetPitch(); - const int Bpp = has_alpha ? 4 : bitmap->GetBPP() / 8; - auto* pNormalizeSrcFunc = has_alpha ? &NormalizeArgbSrc : &NormalizeRgbDst; - auto* pNormalizeDstFunc = has_alpha ? &NormalizeArgbDest : &NormalizeRgbSrc; - auto* pSetAlpha = has_alpha ? &SetAlpha : &SetAlphaDoNothing; - - 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++) { - if (has_alpha) { - Merge(src_scan[2], r, a, &dest_scan[2]); - Merge(src_scan[1], g, a, &dest_scan[1]); - Merge(src_scan[0], b, a, &dest_scan[0]); - } else { - MergeGammaAdjustBgr(&src_scan[0], r, g, b, a, &dest_scan[0]); - } - pSetAlpha(dest_scan); - NextPixel(&src_scan, &dest_scan, Bpp); - } - } else if (x_subpixel == 1) { - MergeGammaAdjust(src_scan[1], r, a, &dest_scan[2]); - MergeGammaAdjust(src_scan[0], g, a, &dest_scan[1]); - if (start_col > left) - MergeGammaAdjust(src_scan[-1], b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - NextPixel(&src_scan, &dest_scan, Bpp); - for (int col = start_col + 1; col < end_col - 1; col++) { - MergeGammaAdjustBgr(&src_scan[-1], r, g, b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - NextPixel(&src_scan, &dest_scan, Bpp); - } - } else { - MergeGammaAdjust(src_scan[0], r, a, &dest_scan[2]); - if (start_col > left) { - MergeGammaAdjust(src_scan[-1], g, a, &dest_scan[1]); - MergeGammaAdjust(src_scan[-2], b, a, &dest_scan[0]); - } - pSetAlpha(dest_scan); - NextPixel(&src_scan, &dest_scan, Bpp); - for (int col = start_col + 1; col < end_col - 1; col++) { - MergeGammaAdjustBgr(&src_scan[-2], r, g, b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - NextPixel(&src_scan, &dest_scan, Bpp); - } - } - } else { - if (x_subpixel == 0) { - for (int col = start_col; col < end_col; col++) { - if (bNormal) { - int src_value = AverageRgb(&src_scan[0]); - pNormalizeDstFunc(src_value, r, g, b, a, dest_scan); - } else { - MergeGammaAdjustRgb(&src_scan[0], r, g, b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - } - NextPixel(&src_scan, &dest_scan, Bpp); - } - } else if (x_subpixel == 1) { - if (bNormal) { - int src_value = start_col > left ? AverageRgb(&src_scan[-1]) - : (src_scan[0] + src_scan[1]) / 3; - pNormalizeSrcFunc(src_value, r, g, b, a, dest_scan); - } else { - if (start_col > left) - MergeGammaAdjust(src_scan[-1], r, a, &dest_scan[2]); - MergeGammaAdjust(src_scan[0], g, a, &dest_scan[1]); - MergeGammaAdjust(src_scan[1], b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - } - NextPixel(&src_scan, &dest_scan, Bpp); - for (int col = start_col + 1; col < end_col; col++) { - if (bNormal) { - int src_value = AverageRgb(&src_scan[-1]); - pNormalizeDstFunc(src_value, r, g, b, a, dest_scan); - } else { - MergeGammaAdjustRgb(&src_scan[-1], r, g, b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - } - NextPixel(&src_scan, &dest_scan, Bpp); - } - } else { - if (bNormal) { - int src_value = - start_col > left ? AverageRgb(&src_scan[-2]) : src_scan[0] / 3; - pNormalizeSrcFunc(src_value, r, g, b, a, dest_scan); - } else { - if (start_col > left) { - MergeGammaAdjust(src_scan[-2], r, a, &dest_scan[2]); - MergeGammaAdjust(src_scan[-1], g, a, &dest_scan[1]); - } - MergeGammaAdjust(src_scan[0], b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - } - NextPixel(&src_scan, &dest_scan, Bpp); - for (int col = start_col + 1; col < end_col; col++) { - if (bNormal) { - int src_value = AverageRgb(&src_scan[-2]); - pNormalizeDstFunc(src_value, r, g, b, a, dest_scan); - } else { - MergeGammaAdjustRgb(&src_scan[-2], r, g, b, a, &dest_scan[0]); - pSetAlpha(dest_scan); - } - NextPixel(&src_scan, &dest_scan, Bpp); - } - } - } - } -} - -bool ShouldDrawDeviceText(const CFX_Font* pFont, uint32_t text_flags) { -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - if (text_flags & FXFONT_CIDFONT) - return false; - - const CFX_ByteString bsPsName = pFont->GetPsName(); - if (bsPsName.Find("+ZJHL") != -1) - return false; - - if (bsPsName == "CNAAJI+cmex10") - return false; -#endif - return true; -} - -} // namespace - -FXTEXT_CHARPOS::FXTEXT_CHARPOS() - : m_GlyphIndex(0), - m_FontCharWidth(0), -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - m_ExtGID(0), -#endif - m_FallbackFontPosition(0), - m_bGlyphAdjust(false), - m_bFontStyle(false) { -} - -FXTEXT_CHARPOS::FXTEXT_CHARPOS(const FXTEXT_CHARPOS&) = default; - -FXTEXT_CHARPOS::~FXTEXT_CHARPOS(){}; - -CFX_RenderDevice::CFX_RenderDevice() - : m_pBitmap(nullptr), - m_Width(0), - m_Height(0), - m_bpp(0), - m_RenderCaps(0), - m_DeviceClass(0) {} - -CFX_RenderDevice::~CFX_RenderDevice() { - RestoreState(false); -#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ - Flush(); -#endif -} - -#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ -void CFX_RenderDevice::Flush() { - m_pDeviceDriver.reset(); -} -#endif - -void CFX_RenderDevice::SetDeviceDriver( - std::unique_ptr<IFX_RenderDeviceDriver> pDriver) { - m_pDeviceDriver = std::move(pDriver); - InitDeviceInfo(); -} - -void CFX_RenderDevice::InitDeviceInfo() { - m_Width = m_pDeviceDriver->GetDeviceCaps(FXDC_PIXEL_WIDTH); - m_Height = m_pDeviceDriver->GetDeviceCaps(FXDC_PIXEL_HEIGHT); - m_bpp = m_pDeviceDriver->GetDeviceCaps(FXDC_BITS_PIXEL); - m_RenderCaps = m_pDeviceDriver->GetDeviceCaps(FXDC_RENDER_CAPS); - m_DeviceClass = m_pDeviceDriver->GetDeviceCaps(FXDC_DEVICE_CLASS); - if (!m_pDeviceDriver->GetClipBox(&m_ClipBox)) { - m_ClipBox.left = 0; - m_ClipBox.top = 0; - m_ClipBox.right = m_Width; - m_ClipBox.bottom = m_Height; - } -} - -void CFX_RenderDevice::SaveState() { - m_pDeviceDriver->SaveState(); -} - -void CFX_RenderDevice::RestoreState(bool bKeepSaved) { - if (m_pDeviceDriver) { - m_pDeviceDriver->RestoreState(bKeepSaved); - UpdateClipBox(); - } -} - -int CFX_RenderDevice::GetDeviceCaps(int caps_id) const { - return m_pDeviceDriver->GetDeviceCaps(caps_id); -} - -CFX_Matrix CFX_RenderDevice::GetCTM() const { - return m_pDeviceDriver->GetCTM(); -} - -bool CFX_RenderDevice::CreateCompatibleBitmap( - const CFX_RetainPtr<CFX_DIBitmap>& pDIB, - int width, - int height) const { - if (m_RenderCaps & FXRC_CMYK_OUTPUT) { - return pDIB->Create(width, height, m_RenderCaps & FXRC_ALPHA_OUTPUT - ? FXDIB_Cmyka - : FXDIB_Cmyk); - } - if (m_RenderCaps & FXRC_BYTEMASK_OUTPUT) - return pDIB->Create(width, height, FXDIB_8bppMask); -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || defined _SKIA_SUPPORT_PATHS_ - return pDIB->Create(width, height, m_RenderCaps & FXRC_ALPHA_OUTPUT - ? FXDIB_Argb - : FXDIB_Rgb32); -#else - return pDIB->Create( - width, height, m_RenderCaps & FXRC_ALPHA_OUTPUT ? FXDIB_Argb : FXDIB_Rgb); -#endif -} - -bool CFX_RenderDevice::SetClip_PathFill(const CFX_PathData* pPathData, - const CFX_Matrix* pObject2Device, - int fill_mode) { - if (!m_pDeviceDriver->SetClip_PathFill(pPathData, pObject2Device, - fill_mode)) { - return false; - } - UpdateClipBox(); - return true; -} - -bool CFX_RenderDevice::SetClip_PathStroke( - const CFX_PathData* pPathData, - const CFX_Matrix* pObject2Device, - const CFX_GraphStateData* pGraphState) { - if (!m_pDeviceDriver->SetClip_PathStroke(pPathData, pObject2Device, - pGraphState)) { - return false; - } - UpdateClipBox(); - return true; -} - -bool CFX_RenderDevice::SetClip_Rect(const FX_RECT& rect) { - CFX_PathData path; - path.AppendRect(rect.left, rect.bottom, rect.right, rect.top); - if (!SetClip_PathFill(&path, nullptr, FXFILL_WINDING)) - return false; - - UpdateClipBox(); - return true; -} - -void CFX_RenderDevice::UpdateClipBox() { - if (m_pDeviceDriver->GetClipBox(&m_ClipBox)) - return; - m_ClipBox.left = 0; - m_ClipBox.top = 0; - m_ClipBox.right = m_Width; - m_ClipBox.bottom = m_Height; -} - -bool CFX_RenderDevice::DrawPathWithBlend(const CFX_PathData* pPathData, - const CFX_Matrix* pObject2Device, - const CFX_GraphStateData* pGraphState, - uint32_t fill_color, - uint32_t stroke_color, - int fill_mode, - int blend_type) { - uint8_t stroke_alpha = pGraphState ? FXARGB_A(stroke_color) : 0; - uint8_t fill_alpha = (fill_mode & 3) ? FXARGB_A(fill_color) : 0; - const std::vector<FX_PATHPOINT>& pPoints = pPathData->GetPoints(); - if (stroke_alpha == 0 && pPoints.size() == 2) { - CFX_PointF pos1 = pPoints[0].m_Point; - CFX_PointF pos2 = pPoints[1].m_Point; - if (pObject2Device) { - pos1 = pObject2Device->Transform(pos1); - pos2 = pObject2Device->Transform(pos2); - } - DrawCosmeticLine(pos1.x, pos1.y, pos2.x, pos2.y, fill_color, fill_mode, - blend_type); - return true; - } - - if ((pPoints.size() == 5 || pPoints.size() == 4) && stroke_alpha == 0) { - CFX_FloatRect rect_f; - if (!(fill_mode & FXFILL_RECT_AA) && - pPathData->IsRect(pObject2Device, &rect_f)) { - FX_RECT rect_i = rect_f.GetOuterRect(); - - // Depending on the top/bottom, left/right values of the rect it's - // possible to overflow the Width() and Height() calculations. Check that - // the rect will have valid dimension before continuing. - if (!rect_i.Valid()) - return false; - - int width = (int)ceil(rect_f.right - rect_f.left); - if (width < 1) { - width = 1; - if (rect_i.left == rect_i.right) - rect_i.right++; - } - int height = (int)ceil(rect_f.top - rect_f.bottom); - if (height < 1) { - height = 1; - if (rect_i.bottom == rect_i.top) - rect_i.bottom++; - } - if (rect_i.Width() >= width + 1) { - if (rect_f.left - (float)(rect_i.left) > - (float)(rect_i.right) - rect_f.right) { - rect_i.left++; - } else { - rect_i.right--; - } - } - if (rect_i.Height() >= height + 1) { - if (rect_f.top - (float)(rect_i.top) > - (float)(rect_i.bottom) - rect_f.bottom) { - rect_i.top++; - } else { - rect_i.bottom--; - } - } - if (FillRectWithBlend(&rect_i, fill_color, blend_type)) - return true; - } - } - if ((fill_mode & 3) && stroke_alpha == 0 && !(fill_mode & FX_FILL_STROKE) && - !(fill_mode & FX_FILL_TEXT_MODE)) { - CFX_PathData newPath; - bool bThin = false; - bool setIdentity = false; - if (pPathData->GetZeroAreaPath(pObject2Device, - !!m_pDeviceDriver->GetDriverType(), &newPath, - &bThin, &setIdentity)) { - CFX_GraphStateData graphState; - graphState.m_LineWidth = 0.0f; - - uint32_t strokecolor = fill_color; - if (bThin) - strokecolor = (((fill_alpha >> 2) << 24) | (strokecolor & 0x00ffffff)); - - const CFX_Matrix* pMatrix = nullptr; - if (pObject2Device && !pObject2Device->IsIdentity() && !setIdentity) - pMatrix = pObject2Device; - - int smooth_path = FX_ZEROAREA_FILL; - if (fill_mode & FXFILL_NOPATHSMOOTH) - smooth_path |= FXFILL_NOPATHSMOOTH; - - m_pDeviceDriver->DrawPath(&newPath, pMatrix, &graphState, 0, strokecolor, - smooth_path, blend_type); - } - } - if ((fill_mode & 3) && fill_alpha && stroke_alpha < 0xff && - (fill_mode & FX_FILL_STROKE)) { - if (m_RenderCaps & FXRC_FILLSTROKE_PATH) { - return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, - fill_color, stroke_color, fill_mode, - blend_type); - } - return DrawFillStrokePath(pPathData, pObject2Device, pGraphState, - fill_color, stroke_color, fill_mode, blend_type); - } - return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, - fill_color, stroke_color, fill_mode, - blend_type); -} - -// This can be removed once PDFium entirely relies on Skia -bool CFX_RenderDevice::DrawFillStrokePath(const CFX_PathData* pPathData, - const CFX_Matrix* pObject2Device, - const CFX_GraphStateData* pGraphState, - uint32_t fill_color, - uint32_t stroke_color, - int fill_mode, - int blend_type) { - if (!(m_RenderCaps & FXRC_GET_BITS)) - return false; - CFX_FloatRect bbox; - if (pGraphState) { - bbox = pPathData->GetBoundingBox(pGraphState->m_LineWidth, - pGraphState->m_MiterLimit); - } else { - bbox = pPathData->GetBoundingBox(); - } - if (pObject2Device) - pObject2Device->TransformRect(bbox); - - CFX_Matrix ctm = GetCTM(); - float fScaleX = fabs(ctm.a); - float fScaleY = fabs(ctm.d); - FX_RECT rect = bbox.GetOuterRect(); - auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); - auto Backdrop = pdfium::MakeRetain<CFX_DIBitmap>(); - if (!CreateCompatibleBitmap(bitmap, FXSYS_round(rect.Width() * fScaleX), - FXSYS_round(rect.Height() * fScaleY))) { - return false; - } - if (bitmap->HasAlpha()) { - bitmap->Clear(0); - Backdrop->Copy(bitmap); - } else { - if (!m_pDeviceDriver->GetDIBits(bitmap, rect.left, rect.top)) - return false; - Backdrop->Copy(bitmap); - } - CFX_DefaultRenderDevice bitmap_device; - bitmap_device.Attach(bitmap, false, Backdrop, true); - - CFX_Matrix matrix; - if (pObject2Device) - matrix = *pObject2Device; - matrix.Translate(-rect.left, -rect.top); - matrix.Concat(CFX_Matrix(fScaleX, 0, 0, fScaleY, 0, 0)); - if (!bitmap_device.GetDeviceDriver()->DrawPath( - pPathData, &matrix, pGraphState, fill_color, stroke_color, fill_mode, - blend_type)) { - return false; - } -#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ - bitmap_device.GetDeviceDriver()->Flush(); -#endif - FX_RECT src_rect(0, 0, FXSYS_round(rect.Width() * fScaleX), - FXSYS_round(rect.Height() * fScaleY)); - return m_pDeviceDriver->SetDIBits(bitmap, 0, &src_rect, rect.left, rect.top, - FXDIB_BLEND_NORMAL); -} - -bool CFX_RenderDevice::SetPixel(int x, int y, uint32_t color) { - if (m_pDeviceDriver->SetPixel(x, y, color)) - return true; - - FX_RECT rect(x, y, x + 1, y + 1); - return FillRectWithBlend(&rect, color, FXDIB_BLEND_NORMAL); -} - -bool CFX_RenderDevice::FillRectWithBlend(const FX_RECT* pRect, - uint32_t fill_color, - int blend_type) { - if (m_pDeviceDriver->FillRectWithBlend(pRect, fill_color, blend_type)) - return true; - - if (!(m_RenderCaps & FXRC_GET_BITS)) - return false; - - auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); - if (!CreateCompatibleBitmap(bitmap, pRect->Width(), pRect->Height())) - return false; - - if (!m_pDeviceDriver->GetDIBits(bitmap, pRect->left, pRect->top)) - return false; - - if (!bitmap->CompositeRect(0, 0, pRect->Width(), pRect->Height(), fill_color, - 0)) { - return false; - } - FX_RECT src_rect(0, 0, pRect->Width(), pRect->Height()); - m_pDeviceDriver->SetDIBits(bitmap, 0, &src_rect, pRect->left, pRect->top, - FXDIB_BLEND_NORMAL); - return true; -} - -bool CFX_RenderDevice::DrawCosmeticLine(float x1, - float y1, - float x2, - float y2, - uint32_t color, - int fill_mode, - int blend_type) { - if ((color >= 0xff000000) && - m_pDeviceDriver->DrawCosmeticLine(x1, y1, x2, y2, color, blend_type)) { - return true; - } - CFX_GraphStateData graph_state; - CFX_PathData path; - path.AppendPoint(CFX_PointF(x1, y1), FXPT_TYPE::MoveTo, false); - path.AppendPoint(CFX_PointF(x2, y2), FXPT_TYPE::LineTo, false); - return m_pDeviceDriver->DrawPath(&path, nullptr, &graph_state, 0, color, - fill_mode, blend_type); -} - -bool CFX_RenderDevice::GetDIBits(const CFX_RetainPtr<CFX_DIBitmap>& pBitmap, - int left, - int top) { - if (!(m_RenderCaps & FXRC_GET_BITS)) - return false; - return m_pDeviceDriver->GetDIBits(pBitmap, left, top); -} - -CFX_RetainPtr<CFX_DIBitmap> CFX_RenderDevice::GetBackDrop() { - return m_pDeviceDriver->GetBackDrop(); -} - -bool CFX_RenderDevice::SetDIBitsWithBlend( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int left, - int top, - int blend_mode) { - ASSERT(!pBitmap->IsAlphaMask()); - CFX_Matrix ctm = GetCTM(); - float fScaleX = fabs(ctm.a); - float fScaleY = fabs(ctm.d); - FX_RECT dest_rect(left, top, - FXSYS_round(left + pBitmap->GetWidth() / fScaleX), - FXSYS_round(top + pBitmap->GetHeight() / fScaleY)); - dest_rect.Intersect(m_ClipBox); - if (dest_rect.IsEmpty()) - return true; - - FX_RECT src_rect(dest_rect.left - left, dest_rect.top - top, - dest_rect.left - left + dest_rect.Width(), - dest_rect.top - top + dest_rect.Height()); - src_rect.left = FXSYS_round(src_rect.left * fScaleX); - src_rect.top = FXSYS_round(src_rect.top * fScaleY); - src_rect.right = FXSYS_round(src_rect.right * fScaleX); - src_rect.bottom = FXSYS_round(src_rect.bottom * fScaleY); - if ((blend_mode != FXDIB_BLEND_NORMAL && !(m_RenderCaps & FXRC_BLEND_MODE)) || - (pBitmap->HasAlpha() && !(m_RenderCaps & FXRC_ALPHA_IMAGE))) { - if (!(m_RenderCaps & FXRC_GET_BITS)) - return false; - - int bg_pixel_width = FXSYS_round(dest_rect.Width() * fScaleX); - int bg_pixel_height = FXSYS_round(dest_rect.Height() * fScaleY); - auto background = pdfium::MakeRetain<CFX_DIBitmap>(); - if (!background->Create( - bg_pixel_width, bg_pixel_height, - (m_RenderCaps & FXRC_CMYK_OUTPUT) ? FXDIB_Cmyk : FXDIB_Rgb32)) { - return false; - } - if (!m_pDeviceDriver->GetDIBits(background, dest_rect.left, - dest_rect.top)) { - return false; - } - if (!background->CompositeBitmap(0, 0, bg_pixel_width, bg_pixel_height, - pBitmap, src_rect.left, src_rect.top, - blend_mode, nullptr, false)) { - return false; - } - FX_RECT rect(0, 0, bg_pixel_width, bg_pixel_height); - return m_pDeviceDriver->SetDIBits(background, 0, &rect, dest_rect.left, - dest_rect.top, FXDIB_BLEND_NORMAL); - } - return m_pDeviceDriver->SetDIBits(pBitmap, 0, &src_rect, dest_rect.left, - dest_rect.top, blend_mode); -} - -bool CFX_RenderDevice::StretchDIBitsWithFlagsAndBlend( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int left, - int top, - int dest_width, - int dest_height, - uint32_t flags, - int blend_mode) { - FX_RECT dest_rect(left, top, left + dest_width, top + dest_height); - FX_RECT clip_box = m_ClipBox; - clip_box.Intersect(dest_rect); - if (clip_box.IsEmpty()) - return true; - return m_pDeviceDriver->StretchDIBits(pBitmap, 0, left, top, dest_width, - dest_height, &clip_box, flags, - blend_mode); -} - -bool CFX_RenderDevice::SetBitMask(const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int left, - int top, - uint32_t argb) { - FX_RECT src_rect(0, 0, pBitmap->GetWidth(), pBitmap->GetHeight()); - return m_pDeviceDriver->SetDIBits(pBitmap, argb, &src_rect, left, top, - FXDIB_BLEND_NORMAL); -} - -bool CFX_RenderDevice::StretchBitMask( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int left, - int top, - int dest_width, - int dest_height, - uint32_t color) { - return StretchBitMaskWithFlags(pBitmap, left, top, dest_width, dest_height, - color, 0); -} - -bool CFX_RenderDevice::StretchBitMaskWithFlags( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int left, - int top, - int dest_width, - int dest_height, - uint32_t argb, - uint32_t flags) { - FX_RECT dest_rect(left, top, left + dest_width, top + dest_height); - FX_RECT clip_box = m_ClipBox; - clip_box.Intersect(dest_rect); - return m_pDeviceDriver->StretchDIBits(pBitmap, argb, left, top, dest_width, - dest_height, &clip_box, flags, - FXDIB_BLEND_NORMAL); -} - -bool CFX_RenderDevice::StartDIBitsWithBlend( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - int bitmap_alpha, - uint32_t argb, - const CFX_Matrix* pMatrix, - uint32_t flags, - std::unique_ptr<CFX_ImageRenderer>* handle, - int blend_mode) { - return m_pDeviceDriver->StartDIBits(pBitmap, bitmap_alpha, argb, pMatrix, - flags, handle, blend_mode); -} - -bool CFX_RenderDevice::ContinueDIBits(CFX_ImageRenderer* handle, - IFX_Pause* pPause) { - return m_pDeviceDriver->ContinueDIBits(handle, pPause); -} - -#ifdef _SKIA_SUPPORT_ -void CFX_RenderDevice::DebugVerifyBitmapIsPreMultiplied() const { - SkASSERT(0); -} - -bool CFX_RenderDevice::SetBitsWithMask( - const CFX_RetainPtr<CFX_DIBSource>& pBitmap, - const CFX_RetainPtr<CFX_DIBSource>& pMask, - int left, - int top, - int bitmap_alpha, - int blend_type) { - return m_pDeviceDriver->SetBitsWithMask(pBitmap, pMask, left, top, - bitmap_alpha, blend_type); -} -#endif - -bool CFX_RenderDevice::DrawNormalText(int nChars, - const FXTEXT_CHARPOS* pCharPos, - CFX_Font* pFont, - float font_size, - const CFX_Matrix* pText2Device, - uint32_t fill_color, - uint32_t text_flags) { - int nativetext_flags = text_flags; - if (m_DeviceClass != FXDC_DISPLAY) { - if (!(text_flags & FXTEXT_PRINTGRAPHICTEXT)) { - if (ShouldDrawDeviceText(pFont, text_flags) && - m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pText2Device, - font_size, fill_color)) { - return true; - } - } - if (FXARGB_A(fill_color) < 255) - return false; - } else if (!(text_flags & FXTEXT_NO_NATIVETEXT)) { - if (ShouldDrawDeviceText(pFont, text_flags) && - m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pText2Device, - font_size, fill_color)) { - return true; - } - } - CFX_Matrix char2device; - CFX_Matrix text2Device; - if (pText2Device) { - char2device = *pText2Device; - text2Device = *pText2Device; - } - - char2device.Scale(font_size, -font_size); - if (fabs(char2device.a) + fabs(char2device.b) > 50 * 1.0f || - ((m_DeviceClass == FXDC_PRINTER) && - !(text_flags & FXTEXT_PRINTIMAGETEXT))) { - if (pFont->GetFace()) { - int nPathFlags = - (text_flags & FXTEXT_NOSMOOTH) == 0 ? 0 : FXFILL_NOPATHSMOOTH; - return DrawTextPath(nChars, pCharPos, pFont, font_size, pText2Device, - nullptr, nullptr, fill_color, 0, nullptr, nPathFlags); - } - } - int anti_alias = FXFT_RENDER_MODE_MONO; - bool bNormal = false; - if ((text_flags & FXTEXT_NOSMOOTH) == 0) { - if (m_DeviceClass == FXDC_DISPLAY && m_bpp > 1) { - if (!CFX_GEModule::Get()->GetFontMgr()->FTLibrarySupportsHinting()) { - // Some Freetype implementations (like the one packaged with Fedora) do - // not support hinting due to patents 6219025, 6239783, 6307566, - // 6225973, 6243070, 6393145, 6421054, 6282327, and 6624828; the latest - // one expires 10/7/19. This makes LCD antialiasing very ugly, so we - // instead fall back on NORMAL antialiasing. - anti_alias = FXFT_RENDER_MODE_NORMAL; - } else 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 { - anti_alias = FXFT_RENDER_MODE_LCD; - - bool bClearType = false; - if (pFont->GetFace()) - bClearType = !!(text_flags & FXTEXT_CLEARTYPE); - bNormal = !bClearType; - } - } - } - std::vector<FXTEXT_GLYPHPOS> glyphs(nChars); - CFX_Matrix matrixCTM = GetCTM(); - float scale_x = fabs(matrixCTM.a); - float scale_y = fabs(matrixCTM.d); - CFX_Matrix deviceCtm = char2device; - CFX_Matrix m(scale_x, 0, 0, scale_y, 0, 0); - deviceCtm.Concat(m); - text2Device.Concat(m); - - for (size_t i = 0; i < glyphs.size(); ++i) { - FXTEXT_GLYPHPOS& glyph = glyphs[i]; - const FXTEXT_CHARPOS& charpos = pCharPos[i]; - - glyph.m_fOrigin = text2Device.Transform(charpos.m_Origin); - if (anti_alias < FXFT_RENDER_MODE_LCD) - glyph.m_Origin.x = FXSYS_round(glyph.m_fOrigin.x); - else - glyph.m_Origin.x = static_cast<int>(floor(glyph.m_fOrigin.x)); - glyph.m_Origin.y = FXSYS_round(glyph.m_fOrigin.y); - - 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 = pFont->LoadGlyphBitmap( - charpos.m_GlyphIndex, charpos.m_bFontStyle, &new_matrix, - charpos.m_FontCharWidth, anti_alias, nativetext_flags); - } else { - glyph.m_pGlyph = pFont->LoadGlyphBitmap( - charpos.m_GlyphIndex, charpos.m_bFontStyle, &deviceCtm, - charpos.m_FontCharWidth, anti_alias, nativetext_flags); - } - } - if (anti_alias < FXFT_RENDER_MODE_LCD && glyphs.size() > 1) - AdjustGlyphSpace(&glyphs); - - FX_RECT bmp_rect1 = FXGE_GetGlyphsBBox(glyphs, anti_alias, 1.0f, 1.0f); - 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((float)(bmp_rect1.left) / scale_x), - FXSYS_round((float)(bmp_rect1.top) / scale_y), - FXSYS_round((float)bmp_rect1.right / scale_x), - FXSYS_round((float)bmp_rect1.bottom / scale_y)); - bmp_rect.Intersect(m_ClipBox); - if (bmp_rect.IsEmpty()) - 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) { - auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); - if (!bitmap->Create(pixel_width, pixel_height, FXDIB_1bppMask)) - return false; - bitmap->Clear(0); - for (const FXTEXT_GLYPHPOS& glyph : glyphs) { - if (!glyph.m_pGlyph) - continue; - CFX_RetainPtr<CFX_DIBitmap> pGlyph = glyph.m_pGlyph->m_pBitmap; - bitmap->TransferBitmap( - glyph.m_Origin.x + glyph.m_pGlyph->m_Left - pixel_left, - glyph.m_Origin.y - glyph.m_pGlyph->m_Top - pixel_top, - pGlyph->GetWidth(), pGlyph->GetHeight(), pGlyph, 0, 0); - } - return SetBitMask(bitmap, bmp_rect.left, bmp_rect.top, fill_color); - } - auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); - if (m_bpp == 8) { - if (!bitmap->Create(pixel_width, pixel_height, FXDIB_8bppMask)) - return false; - } else { - if (!CreateCompatibleBitmap(bitmap, pixel_width, pixel_height)) - return false; - } - if (!bitmap->HasAlpha() && !bitmap->IsAlphaMask()) { - bitmap->Clear(0xFFFFFFFF); - if (!GetDIBits(bitmap, bmp_rect.left, bmp_rect.top)) - return false; - } else { - bitmap->Clear(0); - if (bitmap->m_pAlphaMask) - bitmap->m_pAlphaMask->Clear(0); - } - int dest_width = pixel_width; - int a = 0; - int r = 0; - int g = 0; - int b = 0; - if (anti_alias == FXFT_RENDER_MODE_LCD) - std::tie(a, r, g, b) = ArgbDecode(fill_color); - - for (const FXTEXT_GLYPHPOS& glyph : glyphs) { - if (!glyph.m_pGlyph) - continue; - - pdfium::base::CheckedNumeric<int> left = glyph.m_Origin.x; - left += glyph.m_pGlyph->m_Left; - left -= pixel_left; - if (!left.IsValid()) - return false; - - pdfium::base::CheckedNumeric<int> top = glyph.m_Origin.y; - top -= glyph.m_pGlyph->m_Top; - top -= pixel_top; - if (!top.IsValid()) - return false; - - CFX_RetainPtr<CFX_DIBitmap> pGlyph = glyph.m_pGlyph->m_pBitmap; - int ncols = pGlyph->GetWidth(); - int nrows = pGlyph->GetHeight(); - if (anti_alias == FXFT_RENDER_MODE_NORMAL) { - if (!bitmap->CompositeMask(left.ValueOrDie(), top.ValueOrDie(), ncols, - nrows, pGlyph, fill_color, 0, 0, - FXDIB_BLEND_NORMAL, nullptr, false, 0)) { - return false; - } - continue; - } - bool bBGRStripe = !!(text_flags & FXTEXT_BGR_STRIPE); - ncols /= 3; - int x_subpixel = static_cast<int>(glyph.m_fOrigin.x * 3) % 3; - int start_col = - pdfium::base::ValueOrDieForType<int>(pdfium::base::CheckMax(left, 0)); - pdfium::base::CheckedNumeric<int> end_col_safe = left; - end_col_safe += ncols; - if (!end_col_safe.IsValid()) - return false; - - int end_col = - std::min(static_cast<int>(end_col_safe.ValueOrDie<int>()), dest_width); - if (start_col >= end_col) - continue; - - DrawNormalTextHelper(bitmap, pGlyph, nrows, left.ValueOrDie(), - top.ValueOrDie(), start_col, end_col, bNormal, - bBGRStripe, x_subpixel, a, r, g, b); - } - if (bitmap->IsAlphaMask()) - SetBitMask(bitmap, bmp_rect.left, bmp_rect.top, fill_color); - else - SetDIBits(bitmap, bmp_rect.left, bmp_rect.top); - return true; -} - -bool CFX_RenderDevice::DrawTextPath(int nChars, - const FXTEXT_CHARPOS* pCharPos, - CFX_Font* pFont, - 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) { - for (int iChar = 0; iChar < nChars; iChar++) { - const FXTEXT_CHARPOS& charpos = pCharPos[iChar]; - CFX_Matrix matrix; - if (charpos.m_bGlyphAdjust) { - matrix = CFX_Matrix(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], - charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], - 0, 0); - } - matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_Origin.x, - charpos.m_Origin.y)); - const CFX_PathData* pPath = - pFont->LoadGlyphPath(charpos.m_GlyphIndex, charpos.m_FontCharWidth); - if (!pPath) - continue; - - matrix.Concat(*pText2User); - - CFX_PathData TransformedPath(*pPath); - TransformedPath.Transform(&matrix); - if (fill_color || stroke_color) { - int fill_mode = nFlag; - if (fill_color) - fill_mode |= FXFILL_WINDING; - fill_mode |= FX_FILL_TEXT_MODE; - if (!DrawPathWithBlend(&TransformedPath, pUser2Device, pGraphState, - fill_color, stroke_color, fill_mode, - FXDIB_BLEND_NORMAL)) { - return false; - } - } - if (pClippingPath) - pClippingPath->Append(&TransformedPath, pUser2Device); - } - return true; -} - -CFX_RenderDevice::StateRestorer::StateRestorer(CFX_RenderDevice* pDevice) - : m_pDevice(pDevice) { - m_pDevice->SaveState(); -} - -CFX_RenderDevice::StateRestorer::~StateRestorer() { - m_pDevice->RestoreState(false); -} |