| // 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 "build/build_config.h" |
| #include "core/fxcrt/fx_safe_types.h" |
| #include "core/fxge/cfx_color.h" |
| #include "core/fxge/cfx_defaultrenderdevice.h" |
| #include "core/fxge/cfx_fillrenderoptions.h" |
| #include "core/fxge/cfx_font.h" |
| #include "core/fxge/cfx_fontmgr.h" |
| #include "core/fxge/cfx_gemodule.h" |
| #include "core/fxge/cfx_glyphbitmap.h" |
| #include "core/fxge/cfx_glyphcache.h" |
| #include "core/fxge/cfx_graphstatedata.h" |
| #include "core/fxge/cfx_pathdata.h" |
| #include "core/fxge/dib/cfx_dibitmap.h" |
| #include "core/fxge/dib/cfx_imagerenderer.h" |
| #include "core/fxge/fx_font.h" |
| #include "core/fxge/renderdevicedriver_iface.h" |
| #include "core/fxge/text_char_pos.h" |
| #include "core/fxge/text_glyph_pos.h" |
| #include "third_party/base/span.h" |
| |
| #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ |
| #include "third_party/skia/include/core/SkTypes.h" |
| #endif |
| |
| namespace { |
| |
| void AdjustGlyphSpace(std::vector<TextGlyphPos>* pGlyphAndPos) { |
| ASSERT(pGlyphAndPos->size() > 1); |
| std::vector<TextGlyphPos>& 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) { |
| const TextGlyphPos& next = glyphs[i]; |
| int next_origin = bVertical ? next.m_Origin.y : next.m_Origin.x; |
| float next_origin_f = |
| bVertical ? next.m_fDeviceOrigin.y : next.m_fDeviceOrigin.x; |
| |
| TextGlyphPos& current = glyphs[i - 1]; |
| int& current_origin = bVertical ? current.m_Origin.y : current.m_Origin.x; |
| float current_origin_f = |
| bVertical ? current.m_fDeviceOrigin.y : current.m_fDeviceOrigin.x; |
| |
| FX_SAFE_INT32 safe_space = next_origin; |
| safe_space -= current_origin; |
| if (!safe_space.IsValid()) |
| continue; |
| |
| int space = safe_space.ValueOrDie(); |
| float space_f = next_origin_f - current_origin_f; |
| float error = fabs(space_f) - fabs(static_cast<float>(space)); |
| if (error <= 0.5f) |
| continue; |
| |
| FX_SAFE_INT32 safe_origin = current_origin; |
| safe_origin += space > 0 ? -1 : 1; |
| if (!safe_origin.IsValid()) |
| continue; |
| |
| current_origin = safe_origin.ValueOrDie(); |
| } |
| } |
| |
| 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 ApplyAlpha(uint8_t* dest, int b, int g, int r, int alpha) { |
| dest[0] = FXDIB_ALPHA_MERGE(dest[0], b, alpha); |
| dest[1] = FXDIB_ALPHA_MERGE(dest[1], g, alpha); |
| dest[2] = FXDIB_ALPHA_MERGE(dest[2], r, alpha); |
| } |
| |
| 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); |
| ApplyAlpha(dest, b, g, r, src_alpha * 255 / dest_alpha); |
| dest[3] = dest_alpha; |
| } |
| |
| void NormalizeArgb(int src_value, |
| int r, |
| int g, |
| int b, |
| int a, |
| uint8_t* dest, |
| int src_alpha) { |
| uint8_t back_alpha = dest[3]; |
| if (back_alpha == 0) |
| FXARGB_SETDIB(dest, ArgbEncode(src_alpha, r, g, b)); |
| else if (src_alpha != 0) |
| ApplyDestAlpha(back_alpha, src_alpha, r, g, b, dest); |
| } |
| |
| void NormalizeDest(bool has_alpha, |
| int src_value, |
| int r, |
| int g, |
| int b, |
| int a, |
| uint8_t* dest) { |
| if (has_alpha) { |
| NormalizeArgb(src_value, r, g, b, a, dest, |
| CalcAlpha(TextGammaAdjust(src_value), a)); |
| return; |
| } |
| int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); |
| if (src_alpha == 0) |
| return; |
| |
| ApplyAlpha(dest, b, g, r, src_alpha); |
| } |
| |
| void NormalizeSrc(bool has_alpha, |
| int src_value, |
| int r, |
| int g, |
| int b, |
| int a, |
| uint8_t* dest) { |
| if (!has_alpha) { |
| ApplyAlpha(dest, b, g, r, CalcAlpha(TextGammaAdjust(src_value), a)); |
| return; |
| } |
| int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); |
| if (src_alpha != 0) |
| NormalizeArgb(src_value, r, g, b, a, dest, src_alpha); |
| } |
| |
| void NextPixel(uint8_t** src_scan, uint8_t** dst_scan, int bpp) { |
| *src_scan += 3; |
| *dst_scan += bpp; |
| } |
| |
| void SetAlpha(bool has_alpha, uint8_t* alpha) { |
| if (has_alpha) |
| alpha[3] = 255; |
| } |
| |
| void DrawNormalTextHelper(const RetainPtr<CFX_DIBitmap>& bitmap, |
| const 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; |
| 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]); |
| } |
| SetAlpha(has_alpha, dest_scan); |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| continue; |
| } |
| 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]); |
| SetAlpha(has_alpha, 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]); |
| SetAlpha(has_alpha, dest_scan); |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| continue; |
| } |
| 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]); |
| } |
| SetAlpha(has_alpha, 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]); |
| SetAlpha(has_alpha, dest_scan); |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| continue; |
| } |
| if (x_subpixel == 0) { |
| for (int col = start_col; col < end_col; ++col) { |
| if (bNormal) { |
| int src_value = AverageRgb(&src_scan[0]); |
| NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); |
| } else { |
| MergeGammaAdjustRgb(&src_scan[0], r, g, b, a, &dest_scan[0]); |
| SetAlpha(has_alpha, dest_scan); |
| } |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| continue; |
| } |
| if (x_subpixel == 1) { |
| if (bNormal) { |
| int src_value = start_col > left ? AverageRgb(&src_scan[-1]) |
| : (src_scan[0] + src_scan[1]) / 3; |
| NormalizeSrc(has_alpha, 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]); |
| SetAlpha(has_alpha, 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]); |
| NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); |
| } else { |
| MergeGammaAdjustRgb(&src_scan[-1], r, g, b, a, &dest_scan[0]); |
| SetAlpha(has_alpha, dest_scan); |
| } |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| continue; |
| } |
| if (bNormal) { |
| int src_value = |
| start_col > left ? AverageRgb(&src_scan[-2]) : src_scan[0] / 3; |
| NormalizeSrc(has_alpha, 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]); |
| SetAlpha(has_alpha, 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]); |
| NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); |
| } else { |
| MergeGammaAdjustRgb(&src_scan[-2], r, g, b, a, &dest_scan[0]); |
| SetAlpha(has_alpha, dest_scan); |
| } |
| NextPixel(&src_scan, &dest_scan, Bpp); |
| } |
| } |
| } |
| |
| bool ShouldDrawDeviceText(const CFX_Font* pFont, |
| const CFX_TextRenderOptions& options) { |
| #if defined(OS_MACOSX) |
| if (options.font_is_cid) |
| return false; |
| |
| const ByteString bsPsName = pFont->GetPsName(); |
| if (bsPsName.Contains("+ZJHL")) |
| return false; |
| |
| if (bsPsName == "CNAAJI+cmex10") |
| return false; |
| #endif |
| return true; |
| } |
| |
| } // namespace |
| |
| CFX_RenderDevice::CFX_RenderDevice() = default; |
| |
| CFX_RenderDevice::~CFX_RenderDevice() { |
| RestoreState(false); |
| #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ |
| Flush(true); |
| #endif |
| } |
| |
| // static |
| CFX_Matrix CFX_RenderDevice::GetFlipMatrix(float width, |
| float height, |
| float left, |
| float top) { |
| return CFX_Matrix(width, 0, 0, -height, left, top + height); |
| } |
| |
| #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ |
| void CFX_RenderDevice::Flush(bool release) { |
| if (release) |
| m_pDeviceDriver.reset(); |
| else |
| m_pDeviceDriver->Flush(); |
| } |
| #endif |
| |
| void CFX_RenderDevice::SetDeviceDriver( |
| std::unique_ptr<RenderDeviceDriverIface> pDriver) { |
| ASSERT(pDriver); |
| ASSERT(!m_pDeviceDriver); |
| 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_DeviceType = m_pDeviceDriver->GetDeviceType(); |
| 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); |
| } |
| |
| RetainPtr<CFX_DIBitmap> CFX_RenderDevice::GetBitmap() const { |
| return m_pBitmap; |
| } |
| |
| void CFX_RenderDevice::SetBitmap(const RetainPtr<CFX_DIBitmap>& pBitmap) { |
| m_pBitmap = pBitmap; |
| } |
| |
| bool CFX_RenderDevice::CreateCompatibleBitmap( |
| const 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 defined(OS_MACOSX) || defined _SKIA_SUPPORT_PATHS_ |
| constexpr FXDIB_Format kPlatformFormat = FXDIB_Rgb32; |
| #else |
| constexpr FXDIB_Format kPlatformFormat = FXDIB_Rgb; |
| #endif |
| return pDIB->Create( |
| width, height, |
| m_RenderCaps & FXRC_ALPHA_OUTPUT ? FXDIB_Argb : kPlatformFormat); |
| } |
| |
| void CFX_RenderDevice::SetBaseClip(const FX_RECT& rect) { |
| m_pDeviceDriver->SetBaseClip(rect); |
| } |
| |
| 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::DrawPath(const CFX_PathData* pPathData, |
| const CFX_Matrix* pObject2Device, |
| const CFX_GraphStateData* pGraphState, |
| uint32_t fill_color, |
| uint32_t stroke_color, |
| int fill_mode) { |
| return DrawPathWithBlend( |
| pPathData, pObject2Device, pGraphState, fill_color, stroke_color, |
| GetFillOptionsFromIntegerFlags(fill_mode), BlendMode::kNormal); |
| } |
| |
| bool CFX_RenderDevice::DrawPathWithBlend( |
| const CFX_PathData* pPathData, |
| const CFX_Matrix* pObject2Device, |
| const CFX_GraphStateData* pGraphState, |
| uint32_t fill_color, |
| uint32_t stroke_color, |
| const CFX_FillRenderOptions& fill_options, |
| BlendMode blend_type) { |
| uint8_t stroke_alpha = pGraphState ? FXARGB_A(stroke_color) : 0; |
| uint8_t fill_alpha = |
| fill_options.fill_type != CFX_FillRenderOptions::FillType::kNoFill |
| ? FXARGB_A(fill_color) |
| : 0; |
| pdfium::span<const FX_PATHPOINT> points = pPathData->GetPoints(); |
| if (stroke_alpha == 0 && points.size() == 2) { |
| CFX_PointF pos1 = points[0].m_Point; |
| CFX_PointF pos2 = points[1].m_Point; |
| if (pObject2Device) { |
| pos1 = pObject2Device->Transform(pos1); |
| pos2 = pObject2Device->Transform(pos2); |
| } |
| DrawCosmeticLine(pos1, pos2, fill_color, fill_options, blend_type); |
| return true; |
| } |
| |
| if ((points.size() == 5 || points.size() == 4) && stroke_alpha == 0 && |
| !fill_options.rect_aa) { |
| Optional<CFX_FloatRect> maybe_rect_f = pPathData->GetRect(pObject2Device); |
| if (maybe_rect_f.has_value()) { |
| const CFX_FloatRect& rect_f = maybe_rect_f.value(); |
| 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 = static_cast<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 = static_cast<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 - static_cast<float>(rect_i.left) > |
| static_cast<float>(rect_i.right) - rect_f.right) { |
| ++rect_i.left; |
| } else { |
| --rect_i.right; |
| } |
| } |
| if (rect_i.Height() >= height + 1) { |
| if (rect_f.top - static_cast<float>(rect_i.top) > |
| static_cast<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_options.fill_type != CFX_FillRenderOptions::FillType::kNoFill && |
| stroke_alpha == 0 && !fill_options.stroke && !fill_options.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_options.aliased_path) |
| smooth_path |= FXFILL_NOPATHSMOOTH; |
| |
| m_pDeviceDriver->DrawPath(&newPath, pMatrix, &graphState, 0, strokecolor, |
| smooth_path, blend_type); |
| } |
| } |
| |
| const int fill_mode = GetIntegerFlagsFromFillOptions(fill_options); |
| if (fill_options.fill_type != CFX_FillRenderOptions::FillType::kNoFill && |
| fill_alpha && stroke_alpha < 0xff && fill_options.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_options, |
| 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, |
| const CFX_FillRenderOptions& fill_options, |
| BlendMode 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) |
| bbox = pObject2Device->TransformRect(bbox); |
| |
| FX_RECT rect = bbox.GetOuterRect(); |
| if (!rect.Valid()) |
| return false; |
| |
| auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); |
| auto backdrop = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!CreateCompatibleBitmap(bitmap, rect.Width(), rect.Height())) |
| 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); |
| if (!bitmap_device.GetDeviceDriver()->DrawPath( |
| pPathData, &matrix, pGraphState, fill_color, stroke_color, |
| GetIntegerFlagsFromFillOptions(fill_options), blend_type)) { |
| return false; |
| } |
| #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ |
| bitmap_device.GetDeviceDriver()->Flush(); |
| #endif |
| FX_RECT src_rect(0, 0, rect.Width(), rect.Height()); |
| return m_pDeviceDriver->SetDIBits(bitmap, 0, src_rect, rect.left, rect.top, |
| BlendMode::kNormal); |
| } |
| |
| bool CFX_RenderDevice::FillRectWithBlend(const FX_RECT& rect, |
| uint32_t fill_color, |
| BlendMode blend_type) { |
| if (m_pDeviceDriver->FillRectWithBlend(rect, fill_color, blend_type)) |
| return true; |
| |
| if (!(m_RenderCaps & FXRC_GET_BITS)) |
| return false; |
| |
| auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); |
| if (!CreateCompatibleBitmap(bitmap, rect.Width(), rect.Height())) |
| return false; |
| |
| if (!m_pDeviceDriver->GetDIBits(bitmap, rect.left, rect.top)) |
| return false; |
| |
| if (!bitmap->CompositeRect(0, 0, rect.Width(), rect.Height(), fill_color, |
| 0)) { |
| return false; |
| } |
| FX_RECT src_rect(0, 0, rect.Width(), rect.Height()); |
| m_pDeviceDriver->SetDIBits(bitmap, 0, src_rect, rect.left, rect.top, |
| BlendMode::kNormal); |
| return true; |
| } |
| |
| bool CFX_RenderDevice::DrawCosmeticLine( |
| const CFX_PointF& ptMoveTo, |
| const CFX_PointF& ptLineTo, |
| uint32_t color, |
| const CFX_FillRenderOptions& fill_options, |
| BlendMode blend_type) { |
| if ((color >= 0xff000000) && m_pDeviceDriver->DrawCosmeticLine( |
| ptMoveTo, ptLineTo, color, blend_type)) { |
| return true; |
| } |
| CFX_GraphStateData graph_state; |
| CFX_PathData path; |
| path.AppendPoint(ptMoveTo, FXPT_TYPE::MoveTo); |
| path.AppendPoint(ptLineTo, FXPT_TYPE::LineTo); |
| return m_pDeviceDriver->DrawPath(&path, nullptr, &graph_state, 0, color, |
| GetIntegerFlagsFromFillOptions(fill_options), |
| blend_type); |
| } |
| |
| bool CFX_RenderDevice::GetDIBits(const RetainPtr<CFX_DIBitmap>& pBitmap, |
| int left, |
| int top) { |
| return (m_RenderCaps & FXRC_GET_BITS) && |
| m_pDeviceDriver->GetDIBits(pBitmap, left, top); |
| } |
| |
| RetainPtr<CFX_DIBitmap> CFX_RenderDevice::GetBackDrop() { |
| return m_pDeviceDriver->GetBackDrop(); |
| } |
| |
| bool CFX_RenderDevice::SetDIBitsWithBlend(const RetainPtr<CFX_DIBBase>& pBitmap, |
| int left, |
| int top, |
| BlendMode blend_mode) { |
| ASSERT(!pBitmap->IsAlphaMask()); |
| FX_RECT dest_rect(left, top, left + pBitmap->GetWidth(), |
| top + pBitmap->GetHeight()); |
| 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()); |
| if ((blend_mode == BlendMode::kNormal || (m_RenderCaps & FXRC_BLEND_MODE)) && |
| (!pBitmap->HasAlpha() || (m_RenderCaps & FXRC_ALPHA_IMAGE))) { |
| return m_pDeviceDriver->SetDIBits(pBitmap, 0, src_rect, dest_rect.left, |
| dest_rect.top, blend_mode); |
| } |
| if (!(m_RenderCaps & FXRC_GET_BITS)) |
| return false; |
| |
| int bg_pixel_width = dest_rect.Width(); |
| int bg_pixel_height = dest_rect.Height(); |
| 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, BlendMode::kNormal); |
| } |
| |
| bool CFX_RenderDevice::StretchDIBitsWithFlagsAndBlend( |
| const RetainPtr<CFX_DIBBase>& pBitmap, |
| int left, |
| int top, |
| int dest_width, |
| int dest_height, |
| const FXDIB_ResampleOptions& options, |
| BlendMode 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); |
| return clip_box.IsEmpty() || m_pDeviceDriver->StretchDIBits( |
| pBitmap, 0, left, top, dest_width, |
| dest_height, &clip_box, options, blend_mode); |
| } |
| |
| bool CFX_RenderDevice::SetBitMask(const RetainPtr<CFX_DIBBase>& 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, |
| BlendMode::kNormal); |
| } |
| |
| bool CFX_RenderDevice::StretchBitMask(const RetainPtr<CFX_DIBBase>& pBitmap, |
| int left, |
| int top, |
| int dest_width, |
| int dest_height, |
| uint32_t color) { |
| return StretchBitMaskWithFlags(pBitmap, left, top, dest_width, dest_height, |
| color, FXDIB_ResampleOptions()); |
| } |
| |
| bool CFX_RenderDevice::StretchBitMaskWithFlags( |
| const RetainPtr<CFX_DIBBase>& pBitmap, |
| int left, |
| int top, |
| int dest_width, |
| int dest_height, |
| uint32_t argb, |
| const FXDIB_ResampleOptions& options) { |
| 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, options, |
| BlendMode::kNormal); |
| } |
| |
| bool CFX_RenderDevice::StartDIBitsWithBlend( |
| const RetainPtr<CFX_DIBBase>& pBitmap, |
| int bitmap_alpha, |
| uint32_t argb, |
| const CFX_Matrix& matrix, |
| const FXDIB_ResampleOptions& options, |
| std::unique_ptr<CFX_ImageRenderer>* handle, |
| BlendMode blend_mode) { |
| return m_pDeviceDriver->StartDIBits(pBitmap, bitmap_alpha, argb, matrix, |
| options, handle, blend_mode); |
| } |
| |
| bool CFX_RenderDevice::ContinueDIBits(CFX_ImageRenderer* handle, |
| PauseIndicatorIface* pPause) { |
| return m_pDeviceDriver->ContinueDIBits(handle, pPause); |
| } |
| |
| #ifdef _SKIA_SUPPORT_ |
| void CFX_RenderDevice::DebugVerifyBitmapIsPreMultiplied() const { |
| NOTREACHED(); |
| } |
| |
| bool CFX_RenderDevice::SetBitsWithMask(const RetainPtr<CFX_DIBBase>& pBitmap, |
| const RetainPtr<CFX_DIBBase>& pMask, |
| int left, |
| int top, |
| int bitmap_alpha, |
| BlendMode blend_type) { |
| return m_pDeviceDriver->SetBitsWithMask(pBitmap, pMask, left, top, |
| bitmap_alpha, blend_type); |
| } |
| #endif |
| |
| bool CFX_RenderDevice::DrawNormalText(int nChars, |
| const TextCharPos* pCharPos, |
| CFX_Font* pFont, |
| float font_size, |
| const CFX_Matrix& mtText2Device, |
| uint32_t fill_color, |
| const CFX_TextRenderOptions& options) { |
| if (GetDeviceType() != DeviceType::kDisplay) { |
| if (ShouldDrawDeviceText(pFont, options) && |
| m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, mtText2Device, |
| font_size, fill_color)) { |
| return true; |
| } |
| if (FXARGB_A(fill_color) < 255) |
| return false; |
| } else if (options.native_text) { |
| if (ShouldDrawDeviceText(pFont, options) && |
| m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, mtText2Device, |
| font_size, fill_color)) { |
| return true; |
| } |
| } |
| bool is_text_smooth = options.IsSmooth(); |
| CFX_Matrix char2device = mtText2Device; |
| CFX_Matrix text2Device = mtText2Device; |
| char2device.Scale(font_size, -font_size); |
| if (fabs(char2device.a) + fabs(char2device.b) > 50 * 1.0f || |
| GetDeviceType() == DeviceType::kPrinter) { |
| if (pFont->GetFaceRec()) { |
| CFX_FillRenderOptions path_options; |
| path_options.aliased_path = !is_text_smooth; |
| return DrawTextPath(nChars, pCharPos, pFont, font_size, mtText2Device, |
| nullptr, nullptr, fill_color, 0, nullptr, |
| path_options); |
| } |
| } |
| int anti_alias = FT_RENDER_MODE_MONO; |
| bool bNormal = false; |
| if (is_text_smooth) { |
| if (GetDeviceType() == DeviceType::kDisplay && 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 = FT_RENDER_MODE_NORMAL; |
| } else if ((m_RenderCaps & (FXRC_ALPHA_OUTPUT | FXRC_CMYK_OUTPUT))) { |
| anti_alias = FT_RENDER_MODE_LCD; |
| bNormal = true; |
| } else if (m_bpp < 16) { |
| anti_alias = FT_RENDER_MODE_NORMAL; |
| } else { |
| anti_alias = FT_RENDER_MODE_LCD; |
| bNormal = !pFont->GetFaceRec() || !options.IsLcd(); |
| } |
| } |
| } |
| std::vector<TextGlyphPos> glyphs(nChars); |
| CFX_Matrix deviceCtm = char2device; |
| CFX_TextRenderOptions native_text_options(options); |
| |
| for (size_t i = 0; i < glyphs.size(); ++i) { |
| TextGlyphPos& glyph = glyphs[i]; |
| const TextCharPos& charpos = pCharPos[i]; |
| |
| glyph.m_fDeviceOrigin = text2Device.Transform(charpos.m_Origin); |
| if (anti_alias < FT_RENDER_MODE_LCD) |
| glyph.m_Origin.x = FXSYS_roundf(glyph.m_fDeviceOrigin.x); |
| else |
| glyph.m_Origin.x = static_cast<int>(floor(glyph.m_fDeviceOrigin.x)); |
| glyph.m_Origin.y = FXSYS_roundf(glyph.m_fDeviceOrigin.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, &native_text_options); |
| } else { |
| glyph.m_pGlyph = pFont->LoadGlyphBitmap( |
| charpos.m_GlyphIndex, charpos.m_bFontStyle, deviceCtm, |
| charpos.m_FontCharWidth, anti_alias, &native_text_options); |
| } |
| } |
| if (anti_alias < FT_RENDER_MODE_LCD && glyphs.size() > 1) |
| AdjustGlyphSpace(&glyphs); |
| |
| FX_RECT bmp_rect = GetGlyphsBBox(glyphs, anti_alias); |
| bmp_rect.Intersect(m_ClipBox); |
| if (bmp_rect.IsEmpty()) |
| return true; |
| |
| int pixel_width = bmp_rect.Width(); |
| int pixel_height = bmp_rect.Height(); |
| int pixel_left = bmp_rect.left; |
| int pixel_top = bmp_rect.top; |
| if (anti_alias == FT_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 TextGlyphPos& glyph : glyphs) { |
| if (!glyph.m_pGlyph) |
| continue; |
| |
| Optional<CFX_Point> point = glyph.GetOrigin({pixel_left, pixel_top}); |
| if (!point.has_value()) |
| continue; |
| |
| const RetainPtr<CFX_DIBitmap>& pGlyph = glyph.m_pGlyph->GetBitmap(); |
| bitmap->TransferBitmap(point.value().x, point.value().y, |
| 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 == FT_RENDER_MODE_LCD) |
| std::tie(a, r, g, b) = ArgbDecode(fill_color); |
| |
| for (const TextGlyphPos& glyph : glyphs) { |
| if (!glyph.m_pGlyph) |
| continue; |
| |
| Optional<CFX_Point> point = glyph.GetOrigin({pixel_left, pixel_top}); |
| if (!point.has_value()) |
| continue; |
| |
| const RetainPtr<CFX_DIBitmap>& pGlyph = glyph.m_pGlyph->GetBitmap(); |
| int ncols = pGlyph->GetWidth(); |
| int nrows = pGlyph->GetHeight(); |
| if (anti_alias == FT_RENDER_MODE_NORMAL) { |
| if (!bitmap->CompositeMask(point.value().x, point.value().y, ncols, nrows, |
| pGlyph, fill_color, 0, 0, BlendMode::kNormal, |
| nullptr, false)) { |
| return false; |
| } |
| continue; |
| } |
| ncols /= 3; |
| int x_subpixel = static_cast<int>(glyph.m_fDeviceOrigin.x * 3) % 3; |
| int start_col = std::max(point->x, 0); |
| FX_SAFE_INT32 end_col_safe = point->x; |
| end_col_safe += ncols; |
| if (!end_col_safe.IsValid()) |
| continue; |
| |
| int end_col = std::min<int>(end_col_safe.ValueOrDie(), dest_width); |
| if (start_col >= end_col) |
| continue; |
| |
| DrawNormalTextHelper( |
| bitmap, pGlyph, nrows, point->x, point->y, start_col, end_col, bNormal, |
| options.aliasing_type == CFX_TextRenderOptions::kBgrStripe, 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 TextCharPos* pCharPos, |
| CFX_Font* pFont, |
| float font_size, |
| const CFX_Matrix& mtText2User, |
| const CFX_Matrix* pUser2Device, |
| const CFX_GraphStateData* pGraphState, |
| uint32_t fill_color, |
| FX_ARGB stroke_color, |
| CFX_PathData* pClippingPath, |
| const CFX_FillRenderOptions& fill_options) { |
| for (int iChar = 0; iChar < nChars; ++iChar) { |
| const TextCharPos& 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(mtText2User); |
| |
| CFX_PathData TransformedPath(*pPath); |
| TransformedPath.Transform(matrix); |
| if (fill_color || stroke_color) { |
| CFX_FillRenderOptions options(fill_options); |
| if (fill_color) |
| options.fill_type = CFX_FillRenderOptions::FillType::kWinding; |
| options.text_mode = true; |
| if (!DrawPathWithBlend(&TransformedPath, pUser2Device, pGraphState, |
| fill_color, stroke_color, options, |
| BlendMode::kNormal)) { |
| return false; |
| } |
| } |
| if (pClippingPath) |
| pClippingPath->Append(&TransformedPath, pUser2Device); |
| } |
| return true; |
| } |
| |
| void CFX_RenderDevice::DrawFillRect(const CFX_Matrix* pUser2Device, |
| const CFX_FloatRect& rect, |
| const FX_COLORREF& color) { |
| CFX_PathData path; |
| path.AppendFloatRect(rect); |
| DrawPath(&path, pUser2Device, nullptr, color, 0, FXFILL_WINDING); |
| } |
| |
| void CFX_RenderDevice::DrawFillArea(const CFX_Matrix& mtUser2Device, |
| const std::vector<CFX_PointF>& points, |
| const FX_COLORREF& color) { |
| ASSERT(!points.empty()); |
| CFX_PathData path; |
| path.AppendPoint(points[0], FXPT_TYPE::MoveTo); |
| for (size_t i = 1; i < points.size(); ++i) |
| path.AppendPoint(points[i], FXPT_TYPE::LineTo); |
| |
| DrawPath(&path, &mtUser2Device, nullptr, color, 0, FXFILL_ALTERNATE); |
| } |
| |
| void CFX_RenderDevice::DrawStrokeRect(const CFX_Matrix& mtUser2Device, |
| const CFX_FloatRect& rect, |
| const FX_COLORREF& color, |
| float fWidth) { |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = fWidth; |
| |
| CFX_PathData path; |
| path.AppendFloatRect(rect); |
| DrawPath(&path, &mtUser2Device, &gsd, 0, color, FXFILL_ALTERNATE); |
| } |
| |
| void CFX_RenderDevice::DrawStrokeLine(const CFX_Matrix* pUser2Device, |
| const CFX_PointF& ptMoveTo, |
| const CFX_PointF& ptLineTo, |
| const FX_COLORREF& color, |
| float fWidth) { |
| CFX_PathData path; |
| path.AppendPoint(ptMoveTo, FXPT_TYPE::MoveTo); |
| path.AppendPoint(ptLineTo, FXPT_TYPE::LineTo); |
| |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = fWidth; |
| |
| DrawPath(&path, pUser2Device, &gsd, 0, color, FXFILL_ALTERNATE); |
| } |
| |
| void CFX_RenderDevice::DrawFillRect(const CFX_Matrix* pUser2Device, |
| const CFX_FloatRect& rect, |
| const CFX_Color& color, |
| int32_t nTransparency) { |
| DrawFillRect(pUser2Device, rect, color.ToFXColor(nTransparency)); |
| } |
| |
| void CFX_RenderDevice::DrawShadow(const CFX_Matrix& mtUser2Device, |
| bool bVertical, |
| bool bHorizontal, |
| const CFX_FloatRect& rect, |
| int32_t nTransparency, |
| int32_t nStartGray, |
| int32_t nEndGray) { |
| constexpr float kBorder = 0.5f; |
| constexpr float kSegmentWidth = 1.0f; |
| constexpr float kLineWidth = 1.5f; |
| |
| if (bVertical) { |
| float fStepGray = (nEndGray - nStartGray) / rect.Height(); |
| CFX_PointF start(rect.left, 0); |
| CFX_PointF end(rect.right, 0); |
| |
| for (float fy = rect.bottom + kBorder; fy <= rect.top - kBorder; |
| fy += kSegmentWidth) { |
| start.y = fy; |
| end.y = fy; |
| int nGray = nStartGray + static_cast<int>(fStepGray * (fy - rect.bottom)); |
| FX_ARGB color = ArgbEncode(nTransparency, nGray, nGray, nGray); |
| DrawStrokeLine(&mtUser2Device, start, end, color, kLineWidth); |
| } |
| } |
| |
| if (bHorizontal) { |
| float fStepGray = (nEndGray - nStartGray) / rect.Width(); |
| CFX_PointF start(0, rect.bottom); |
| CFX_PointF end(0, rect.top); |
| |
| for (float fx = rect.left + kBorder; fx <= rect.right - kBorder; |
| fx += kSegmentWidth) { |
| start.x = fx; |
| end.x = fx; |
| int nGray = nStartGray + static_cast<int>(fStepGray * (fx - rect.left)); |
| FX_ARGB color = ArgbEncode(nTransparency, nGray, nGray, nGray); |
| DrawStrokeLine(&mtUser2Device, start, end, color, kLineWidth); |
| } |
| } |
| } |
| |
| void CFX_RenderDevice::DrawBorder(const CFX_Matrix* pUser2Device, |
| const CFX_FloatRect& rect, |
| float fWidth, |
| const CFX_Color& color, |
| const CFX_Color& crLeftTop, |
| const CFX_Color& crRightBottom, |
| BorderStyle nStyle, |
| int32_t nTransparency) { |
| if (fWidth <= 0.0f) |
| return; |
| |
| const float fLeft = rect.left; |
| const float fRight = rect.right; |
| const float fTop = rect.top; |
| const float fBottom = rect.bottom; |
| const float fHalfWidth = fWidth / 2.0f; |
| |
| switch (nStyle) { |
| default: |
| case BorderStyle::kSolid: { |
| CFX_PathData path; |
| path.AppendRect(fLeft, fBottom, fRight, fTop); |
| path.AppendRect(fLeft + fWidth, fBottom + fWidth, fRight - fWidth, |
| fTop - fWidth); |
| DrawPath(&path, pUser2Device, nullptr, color.ToFXColor(nTransparency), 0, |
| FXFILL_ALTERNATE); |
| break; |
| } |
| case BorderStyle::kDash: { |
| CFX_GraphStateData gsd; |
| gsd.m_DashArray = {3.0f, 3.0f}; |
| gsd.m_DashPhase = 0; |
| gsd.m_LineWidth = fWidth; |
| |
| CFX_PathData path; |
| path.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::MoveTo); |
| path.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fTop - fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path.AppendPoint(CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path.AppendPoint(CFX_PointF(fRight - fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| DrawPath(&path, pUser2Device, &gsd, 0, color.ToFXColor(nTransparency), |
| FXFILL_WINDING); |
| break; |
| } |
| case BorderStyle::kBeveled: |
| case BorderStyle::kInset: { |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = fHalfWidth; |
| |
| CFX_PathData path_left_top; |
| path_left_top.AppendPoint( |
| CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::MoveTo); |
| path_left_top.AppendPoint( |
| CFX_PointF(fLeft + fHalfWidth, fTop - fHalfWidth), FXPT_TYPE::LineTo); |
| path_left_top.AppendPoint( |
| CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path_left_top.AppendPoint(CFX_PointF(fRight - fWidth, fTop - fWidth), |
| FXPT_TYPE::LineTo); |
| path_left_top.AppendPoint(CFX_PointF(fLeft + fWidth, fTop - fWidth), |
| FXPT_TYPE::LineTo); |
| path_left_top.AppendPoint(CFX_PointF(fLeft + fWidth, fBottom + fWidth), |
| FXPT_TYPE::LineTo); |
| path_left_top.AppendPoint( |
| CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| DrawPath(&path_left_top, pUser2Device, &gsd, |
| crLeftTop.ToFXColor(nTransparency), 0, FXFILL_ALTERNATE); |
| |
| CFX_PathData path_right_bottom; |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), |
| FXPT_TYPE::MoveTo); |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fRight - fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fLeft + fWidth, fBottom + fWidth), FXPT_TYPE::LineTo); |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fRight - fWidth, fBottom + fWidth), FXPT_TYPE::LineTo); |
| path_right_bottom.AppendPoint(CFX_PointF(fRight - fWidth, fTop - fWidth), |
| FXPT_TYPE::LineTo); |
| path_right_bottom.AppendPoint( |
| CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), |
| FXPT_TYPE::LineTo); |
| DrawPath(&path_right_bottom, pUser2Device, &gsd, |
| crRightBottom.ToFXColor(nTransparency), 0, FXFILL_ALTERNATE); |
| |
| CFX_PathData path; |
| path.AppendRect(fLeft, fBottom, fRight, fTop); |
| path.AppendRect(fLeft + fHalfWidth, fBottom + fHalfWidth, |
| fRight - fHalfWidth, fTop - fHalfWidth); |
| DrawPath(&path, pUser2Device, &gsd, color.ToFXColor(nTransparency), 0, |
| FXFILL_ALTERNATE); |
| break; |
| } |
| case BorderStyle::kUnderline: { |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = fWidth; |
| |
| CFX_PathData path; |
| path.AppendPoint(CFX_PointF(fLeft, fBottom + fHalfWidth), |
| FXPT_TYPE::MoveTo); |
| path.AppendPoint(CFX_PointF(fRight, fBottom + fHalfWidth), |
| FXPT_TYPE::LineTo); |
| DrawPath(&path, pUser2Device, &gsd, 0, color.ToFXColor(nTransparency), |
| FXFILL_ALTERNATE); |
| break; |
| } |
| } |
| } |
| |
| CFX_RenderDevice::StateRestorer::StateRestorer(CFX_RenderDevice* pDevice) |
| : m_pDevice(pDevice) { |
| m_pDevice->SaveState(); |
| } |
| |
| CFX_RenderDevice::StateRestorer::~StateRestorer() { |
| m_pDevice->RestoreState(false); |
| } |
