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// 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);
}