// 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/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),
|
m_pDeviceDriver(nullptr) {}
|
|
CFX_RenderDevice::~CFX_RenderDevice() {
|
delete m_pDeviceDriver;
|
}
|
|
void CFX_RenderDevice::Flush() {
|
delete m_pDeviceDriver;
|
m_pDeviceDriver = nullptr;
|
}
|
|
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(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.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 (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.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))
|
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
|
