Refactor fx_ge part 3

core/fxge/ge/fx_ge_device.cpp

Index: core/fxge/ge/fx_ge_device.cpp
diff --git a/core/fxge/ge/fx_ge_device.cpp b/core/fxge/ge/fx_ge_device.cpp
deleted file mode 100644
index 1b4d9c81445a09b3dfff8fb5faba9966beafb7ee..0000000000000000000000000000000000000000
--- a/core/fxge/ge/fx_ge_device.cpp
+++ /dev/null
@@ -1,504 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/fxge/include/cfx_pathdata.h"
-#include "core/fxge/include/fx_ge.h"
-#include "core/fxge/include/ifx_renderdevicedriver.h"
-
-#if defined _SKIA_SUPPORT_
-#include "third_party/skia/include/core/SkTypes.h"
-#endif
-
-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() {}
-
-#ifdef _SKIA_SUPPORT_
-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;
-  }
-}
-
-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(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::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;
-  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;
-    }
-    DrawCosmeticLineWithFillModeAndBlend(x1, y1, x2, y2, fill_color, fill_mode,
-                                         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.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)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 (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;
-    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) {
-        strokecolor = (((fill_alpha >> 2) << 24) | (strokecolor & 0x00ffffff));
-      }
-      CFX_Matrix* pMatrix = nullptr;
-      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, 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
-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 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.GetOuterRect();
-    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))
-        return FALSE;
-      Backdrop.Copy(&bitmap);
-    }
-    CFX_FxgeDevice bitmap_device;
-    bitmap_device.Attach(&bitmap, 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, 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) {
-  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);
-}
-
-FX_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;
-
-  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,
-                            0, nullptr)) {
-    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::DrawCosmeticLineWithFillModeAndBlend(FX_FLOAT x1,
-                                                               FX_FLOAT y1,
-                                                               FX_FLOAT x2,
-                                                               FX_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.SetPointCount(2);
-  path.SetPoint(0, x1, y1, FXPT_MOVETO);
-  path.SetPoint(1, x2, y2, FXPT_LINETO);
-  return m_pDeviceDriver->DrawPath(&path, nullptr, &graph_state, 0, color,
-                                   fill_mode, blend_type);
-}
-
-FX_BOOL CFX_RenderDevice::GetDIBits(CFX_DIBitmap* pBitmap, int left, int top) {
-  if (!(m_RenderCaps & FXRC_GET_BITS))
-    return FALSE;
-  return m_pDeviceDriver->GetDIBits(pBitmap, left, top);
-}
-
-CFX_DIBitmap* CFX_RenderDevice::GetBackDrop() {
-  return m_pDeviceDriver->GetBackDrop();
-}
-
-FX_BOOL CFX_RenderDevice::SetDIBitsWithBlend(const CFX_DIBSource* pBitmap,
-                                             int left,
-                                             int top,
-                                             int blend_mode) {
-  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, nullptr, FALSE, nullptr)) {
-      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);
-}
-
-FX_BOOL CFX_RenderDevice::StretchDIBitsWithFlagsAndBlend(
-    const 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);
-}
-
-FX_BOOL CFX_RenderDevice::SetBitMask(const 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);
-}
-
-FX_BOOL CFX_RenderDevice::StretchBitMask(const 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);
-}
-
-FX_BOOL CFX_RenderDevice::StretchBitMaskWithFlags(const 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);
-}
-
-FX_BOOL CFX_RenderDevice::StartDIBitsWithBlend(const CFX_DIBSource* pBitmap,
-                                               int bitmap_alpha,
-                                               uint32_t argb,
-                                               const CFX_Matrix* pMatrix,
-                                               uint32_t flags,
-                                               void*& handle,
-                                               int blend_mode) {
-  return m_pDeviceDriver->StartDIBits(pBitmap, bitmap_alpha, argb, pMatrix,
-                                      flags, handle, 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);
-}
-
-#ifdef _SKIA_SUPPORT_
-
-void CFX_RenderDevice::DebugVerifyBitmapIsPreMultiplied() const {
-  SkASSERT(0);
-}
-#endif