// 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 "../../../include/fxge/fx_ge.h" | |
CFX_RenderDevice::CFX_RenderDevice() | |
{ | |
m_pDeviceDriver = NULL; | |
m_pBitmap = NULL; | |
} | |
CFX_RenderDevice::~CFX_RenderDevice() | |
{ | |
if (m_pDeviceDriver) { | |
delete m_pDeviceDriver; | |
} | |
} | |
void CFX_RenderDevice::SetDeviceDriver(IFX_RenderDeviceDriver* pDriver) | |
{ | |
if (m_pDeviceDriver) { | |
delete m_pDeviceDriver; | |
} | |
m_pDeviceDriver = pDriver; | |
InitDeviceInfo(); | |
} | |
void CFX_RenderDevice::InitDeviceInfo() | |
{ | |
ASSERT(m_pDeviceDriver != NULL); | |
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); | |
} else if (m_RenderCaps & FXRC_BYTEMASK_OUTPUT) { | |
return pDIB->Create(width, height, FXDIB_8bppMask); | |
} else | |
#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_AffineMatrix* 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_AffineMatrix* 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* pRect) | |
{ | |
CFX_PathData path; | |
path.AppendRect((FX_FLOAT)(pRect->left), (FX_FLOAT)(pRect->bottom), (FX_FLOAT)(pRect->right), (FX_FLOAT)(pRect->top)); | |
if (!SetClip_PathFill(&path, NULL, 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_AffineMatrix* pObject2Device, | |
const CFX_GraphStateData* pGraphState, | |
FX_DWORD fill_color, FX_DWORD stroke_color, int fill_mode, | |
int alpha_flag, void* pIccTransform, int blend_type) | |
{ | |
FX_BYTE 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 == NULL) { | |
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; | |
FX_DWORD 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_AffineMatrix* pMatrix = NULL; | |
if (pObject2Device && !pObject2Device->IsIdentity()) { | |
pMatrix = (CFX_AffineMatrix*)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_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_AffineMatrix 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); | |
} | |
return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, fill_color, stroke_color, fill_mode, alpha_flag, pIccTransform, blend_type); | |
} | |
FX_BOOL CFX_RenderDevice::SetPixel(int x, int y, FX_DWORD 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, FX_DWORD 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, FX_DWORD 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_AffineMatrix 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, FX_DWORD 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, FX_DWORD 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, FX_DWORD argb, FX_DWORD 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, FX_DWORD argb, | |
const CFX_AffineMatrix* pMatrix, FX_DWORD flags, FX_LPVOID& 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(FX_LPVOID handle, IFX_Pause* pPause) | |
{ | |
return m_pDeviceDriver->ContinueDIBits(handle, pPause); | |
} | |
void CFX_RenderDevice::CancelDIBits(FX_LPVOID handle) | |
{ | |
m_pDeviceDriver->CancelDIBits(handle); | |
} |