| // 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/include/fxge/fx_ge.h" |
| |
| CFX_RenderDevice::CFX_RenderDevice() { |
| m_pDeviceDriver = NULL; |
| m_pBitmap = NULL; |
| } |
| CFX_RenderDevice::~CFX_RenderDevice() { |
| delete m_pDeviceDriver; |
| } |
| void CFX_RenderDevice::SetDeviceDriver(IFX_RenderDeviceDriver* pDriver) { |
| delete m_pDeviceDriver; |
| m_pDeviceDriver = 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; |
| } |
| } |
| FX_BOOL CFX_RenderDevice::StartRendering() { |
| return m_pDeviceDriver->StartRendering(); |
| } |
| void CFX_RenderDevice::EndRendering() { |
| m_pDeviceDriver->EndRendering(); |
| } |
| void CFX_RenderDevice::SaveState() { |
| m_pDeviceDriver->SaveState(); |
| } |
| void CFX_RenderDevice::RestoreState(FX_BOOL bKeepSaved) { |
| 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(); |
| } |
| FX_BOOL CFX_RenderDevice::CreateCompatibleBitmap(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_ |
| 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 |
| } |
| FX_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; |
| } |
| FX_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; |
| } |
| FX_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; |
| } |
| |
| FX_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, |
| int alpha_flag, |
| void* pIccTransform, |
| int blend_type) { |
| uint8_t fill_alpha, stroke_alpha; |
| if (FXGETFLAG_COLORTYPE(alpha_flag)) { |
| fill_alpha = FXGETFLAG_ALPHA_FILL(alpha_flag); |
| stroke_alpha = FXGETFLAG_ALPHA_STROKE(alpha_flag); |
| } else { |
| fill_alpha = FXARGB_A(fill_color); |
| stroke_alpha = FXARGB_A(stroke_color); |
| } |
| if ((fill_mode & 3) == 0) { |
| fill_alpha = 0; |
| } |
| if (!pGraphState) { |
| stroke_alpha = 0; |
| } |
| if (stroke_alpha == 0 && pPathData->GetPointCount() == 2) { |
| FX_PATHPOINT* pPoints = pPathData->GetPoints(); |
| FX_FLOAT x1, x2, y1, y2; |
| if (pObject2Device) { |
| pObject2Device->Transform(pPoints[0].m_PointX, pPoints[0].m_PointY, x1, |
| y1); |
| pObject2Device->Transform(pPoints[1].m_PointX, pPoints[1].m_PointY, x2, |
| y2); |
| } else { |
| x1 = pPoints[0].m_PointX; |
| y1 = pPoints[0].m_PointY; |
| x2 = pPoints[1].m_PointX; |
| y2 = pPoints[1].m_PointY; |
| } |
| DrawCosmeticLine(x1, y1, x2, y2, fill_color, fill_mode, alpha_flag, |
| pIccTransform, blend_type); |
| return TRUE; |
| } |
| if ((pPathData->GetPointCount() == 5 || pPathData->GetPointCount() == 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.GetOutterRect(); |
| int width = (int)FXSYS_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)FXSYS_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 - (FX_FLOAT)(rect_i.left) > |
| (FX_FLOAT)(rect_i.right) - rect_f.right) { |
| rect_i.left++; |
| } else { |
| rect_i.right--; |
| } |
| } |
| if (rect_i.Height() >= height + 1) { |
| if (rect_f.top - (FX_FLOAT)(rect_i.top) > |
| (FX_FLOAT)(rect_i.bottom) - rect_f.bottom) { |
| rect_i.top++; |
| } else { |
| rect_i.bottom--; |
| } |
| } |
| if (FillRect(&rect_i, fill_color, alpha_flag, pIccTransform, |
| 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; |
| FX_BOOL bThin = FALSE; |
| if (pPathData->GetZeroAreaPath(newPath, (CFX_Matrix*)pObject2Device, bThin, |
| m_pDeviceDriver->GetDriverType())) { |
| CFX_GraphStateData graphState; |
| graphState.m_LineWidth = 0.0f; |
| uint32_t strokecolor = fill_color; |
| if (bThin) { |
| if (FXGETFLAG_COLORTYPE(alpha_flag)) { |
| FXSETFLAG_ALPHA_STROKE(alpha_flag, fill_alpha >> 2); |
| } else { |
| strokecolor = |
| (((fill_alpha >> 2) << 24) | (strokecolor & 0x00ffffff)); |
| } |
| } |
| CFX_Matrix* pMatrix = NULL; |
| if (pObject2Device && !pObject2Device->IsIdentity()) { |
| pMatrix = (CFX_Matrix*)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, alpha_flag, pIccTransform, |
| 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, |
| alpha_flag, pIccTransform, blend_type); |
| } |
| return DrawFillStrokePath(pPathData, pObject2Device, pGraphState, |
| fill_color, stroke_color, fill_mode, alpha_flag, |
| pIccTransform, blend_type); |
| } |
| return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, |
| fill_color, stroke_color, fill_mode, |
| alpha_flag, pIccTransform, blend_type); |
| } |
| |
| // This can be removed once PDFium entirely relies on Skia |
| FX_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 alpha_flag, |
| void* pIccTransform, |
| 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) { |
| bbox.Transform(pObject2Device); |
| } |
| CFX_Matrix ctm = GetCTM(); |
| FX_FLOAT fScaleX = FXSYS_fabs(ctm.a); |
| FX_FLOAT fScaleY = FXSYS_fabs(ctm.d); |
| FX_RECT rect = bbox.GetOutterRect(); |
| CFX_DIBitmap bitmap, Backdrop; |
| 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, NULL)) { |
| return FALSE; |
| } |
| Backdrop.Copy(&bitmap); |
| } |
| CFX_FxgeDevice bitmap_device; |
| bitmap_device.Attach(&bitmap, 0, FALSE, &Backdrop, TRUE); |
| CFX_Matrix matrix; |
| if (pObject2Device) { |
| matrix = *pObject2Device; |
| } |
| matrix.TranslateI(-rect.left, -rect.top); |
| matrix.Concat(fScaleX, 0, 0, fScaleY, 0, 0); |
| if (!bitmap_device.GetDeviceDriver()->DrawPath( |
| pPathData, &matrix, pGraphState, fill_color, stroke_color, |
| fill_mode, alpha_flag, pIccTransform, blend_type)) { |
| return FALSE; |
| } |
| 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); |
| } |
| |
| FX_BOOL CFX_RenderDevice::SetPixel(int x, |
| int y, |
| uint32_t color, |
| int alpha_flag, |
| void* pIccTransform) { |
| if (m_pDeviceDriver->SetPixel(x, y, color, alpha_flag, pIccTransform)) { |
| return TRUE; |
| } |
| FX_RECT rect(x, y, x + 1, y + 1); |
| return FillRect(&rect, color, alpha_flag, pIccTransform); |
| } |
| FX_BOOL CFX_RenderDevice::FillRect(const FX_RECT* pRect, |
| uint32_t fill_color, |
| int alpha_flag, |
| void* pIccTransform, |
| int blend_type) { |
| if (m_pDeviceDriver->FillRect(pRect, fill_color, alpha_flag, pIccTransform, |
| blend_type)) { |
| return TRUE; |
| } |
| if (!(m_RenderCaps & FXRC_GET_BITS)) { |
| return FALSE; |
| } |
| CFX_DIBitmap bitmap; |
| 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, |
| alpha_flag, pIccTransform)) { |
| 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; |
| } |
| FX_BOOL CFX_RenderDevice::DrawCosmeticLine(FX_FLOAT x1, |
| FX_FLOAT y1, |
| FX_FLOAT x2, |
| FX_FLOAT y2, |
| uint32_t color, |
| int fill_mode, |
| int alpha_flag, |
| void* pIccTransform, |
| int blend_type) { |
| if (((m_RenderCaps & FXRC_ALPHA_PATH) && |
| (FXGETFLAG_COLORTYPE(alpha_flag) && |
| FXGETFLAG_ALPHA_FILL(alpha_flag) == 0xff)) || |
| color >= 0xff000000) { |
| if (m_pDeviceDriver->DrawCosmeticLine(x1, y1, x2, y2, color, alpha_flag, |
| pIccTransform, blend_type)) { |
| return TRUE; |
| } |
| } |
| CFX_GraphStateData graph_state; |
| CFX_PathData path; |
| path.SetPointCount(2); |
| path.SetPoint(0, x1, y1, FXPT_MOVETO); |
| path.SetPoint(1, x2, y2, FXPT_LINETO); |
| return m_pDeviceDriver->DrawPath(&path, NULL, &graph_state, 0, color, |
| fill_mode, alpha_flag, pIccTransform, |
| blend_type); |
| } |
| FX_BOOL CFX_RenderDevice::GetDIBits(CFX_DIBitmap* pBitmap, |
| int left, |
| int top, |
| void* pIccTransform) { |
| if (!(m_RenderCaps & FXRC_GET_BITS)) { |
| return FALSE; |
| } |
| return m_pDeviceDriver->GetDIBits(pBitmap, left, top, pIccTransform); |
| } |
| CFX_DIBitmap* CFX_RenderDevice::GetBackDrop() { |
| return m_pDeviceDriver->GetBackDrop(); |
| } |
| FX_BOOL CFX_RenderDevice::SetDIBits(const CFX_DIBSource* pBitmap, |
| int left, |
| int top, |
| int blend_mode, |
| void* pIccTransform) { |
| ASSERT(!pBitmap->IsAlphaMask()); |
| CFX_Matrix ctm = GetCTM(); |
| FX_FLOAT fScaleX = FXSYS_fabs(ctm.a); |
| FX_FLOAT fScaleY = FXSYS_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); |
| CFX_DIBitmap background; |
| 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, NULL, FALSE, pIccTransform)) { |
| return FALSE; |
| } |
| FX_RECT src_rect(0, 0, bg_pixel_width, bg_pixel_height); |
| return m_pDeviceDriver->SetDIBits(&background, 0, &src_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, 0, |
| pIccTransform); |
| } |
| FX_BOOL CFX_RenderDevice::StretchDIBits(const CFX_DIBSource* pBitmap, |
| int left, |
| int top, |
| int dest_width, |
| int dest_height, |
| uint32_t flags, |
| void* pIccTransform, |
| 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, 0, |
| pIccTransform, blend_mode); |
| } |
| FX_BOOL CFX_RenderDevice::SetBitMask(const CFX_DIBSource* pBitmap, |
| int left, |
| int top, |
| uint32_t argb, |
| int alpha_flag, |
| void* pIccTransform) { |
| FX_RECT src_rect(0, 0, pBitmap->GetWidth(), pBitmap->GetHeight()); |
| return m_pDeviceDriver->SetDIBits(pBitmap, argb, &src_rect, left, top, |
| FXDIB_BLEND_NORMAL, alpha_flag, |
| pIccTransform); |
| } |
| FX_BOOL CFX_RenderDevice::StretchBitMask(const CFX_DIBSource* pBitmap, |
| int left, |
| int top, |
| int dest_width, |
| int dest_height, |
| uint32_t argb, |
| uint32_t flags, |
| int alpha_flag, |
| void* pIccTransform) { |
| 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, |
| alpha_flag, pIccTransform); |
| } |
| FX_BOOL CFX_RenderDevice::StartDIBits(const CFX_DIBSource* pBitmap, |
| int bitmap_alpha, |
| uint32_t argb, |
| const CFX_Matrix* pMatrix, |
| uint32_t flags, |
| void*& handle, |
| int alpha_flag, |
| void* pIccTransform, |
| int blend_mode) { |
| return m_pDeviceDriver->StartDIBits(pBitmap, bitmap_alpha, argb, pMatrix, |
| flags, handle, alpha_flag, pIccTransform, |
| blend_mode); |
| } |
| FX_BOOL CFX_RenderDevice::ContinueDIBits(void* handle, IFX_Pause* pPause) { |
| return m_pDeviceDriver->ContinueDIBits(handle, pPause); |
| } |
| void CFX_RenderDevice::CancelDIBits(void* handle) { |
| m_pDeviceDriver->CancelDIBits(handle); |
| } |
