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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 "core/fxge/include/fx_ge.h"
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
#include <windows.h>
#include "core/fxge/dib/dib_int.h"
#include "core/fxge/ge/fx_text_int.h"
#include "core/fxge/include/fx_freetype.h"
#include "core/fxge/include/fx_ge_win32.h"
#include "core/fxge/win32/win32_int.h"
CGdiPrinterDriver::CGdiPrinterDriver(HDC hDC)
: CGdiDeviceDriver(hDC, FXDC_PRINTER),
m_HorzSize(::GetDeviceCaps(m_hDC, HORZSIZE)),
m_VertSize(::GetDeviceCaps(m_hDC, VERTSIZE)) {}
CGdiPrinterDriver::~CGdiPrinterDriver() {}
int CGdiPrinterDriver::GetDeviceCaps(int caps_id) const {
if (caps_id == FXDC_HORZ_SIZE)
return m_HorzSize;
if (caps_id == FXDC_VERT_SIZE)
return m_VertSize;
return CGdiDeviceDriver::GetDeviceCaps(caps_id);
}
FX_BOOL CGdiPrinterDriver::SetDIBits(const CFX_DIBSource* pSource,
uint32_t color,
const FX_RECT* pSrcRect,
int left,
int top,
int blend_type) {
if (pSource->IsAlphaMask()) {
FX_RECT clip_rect(left, top, left + pSrcRect->Width(),
top + pSrcRect->Height());
return StretchDIBits(pSource, color, left - pSrcRect->left,
top - pSrcRect->top, pSource->GetWidth(),
pSource->GetHeight(), &clip_rect, 0,
FXDIB_BLEND_NORMAL);
}
ASSERT(pSource && !pSource->IsAlphaMask() && pSrcRect);
ASSERT(blend_type == FXDIB_BLEND_NORMAL);
if (pSource->HasAlpha())
return FALSE;
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (!pBitmap)
return FALSE;
return GDI_SetDIBits(pBitmap, pSrcRect, left, top, nullptr);
}
FX_BOOL CGdiPrinterDriver::StretchDIBits(const CFX_DIBSource* pSource,
uint32_t color,
int dest_left,
int dest_top,
int dest_width,
int dest_height,
const FX_RECT* pClipRect,
uint32_t flags,
int blend_type) {
if (pSource->IsAlphaMask()) {
int alpha = FXARGB_A(color);
if (pSource->GetBPP() != 1 || alpha != 255)
return FALSE;
if (dest_width < 0 || dest_height < 0) {
std::unique_ptr<CFX_DIBitmap> pFlipped(
pSource->FlipImage(dest_width < 0, dest_height < 0));
if (!pFlipped)
return FALSE;
if (dest_width < 0)
dest_left += dest_width;
if (dest_height < 0)
dest_top += dest_height;
return GDI_StretchBitMask(pFlipped.get(), dest_left, dest_top,
abs(dest_width), abs(dest_height), color, flags,
0, nullptr);
}
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (!pBitmap)
return FALSE;
return GDI_StretchBitMask(pBitmap, dest_left, dest_top, dest_width,
dest_height, color, flags, 0, nullptr);
}
if (pSource->HasAlpha())
return FALSE;
if (dest_width < 0 || dest_height < 0) {
std::unique_ptr<CFX_DIBitmap> pFlipped(
pSource->FlipImage(dest_width < 0, dest_height < 0));
if (!pFlipped)
return FALSE;
if (dest_width < 0)
dest_left += dest_width;
if (dest_height < 0)
dest_top += dest_height;
return GDI_StretchDIBits(pFlipped.get(), dest_left, dest_top,
abs(dest_width), abs(dest_height), flags, nullptr);
}
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (!pBitmap)
return FALSE;
return GDI_StretchDIBits(pBitmap, dest_left, dest_top, dest_width,
dest_height, flags, nullptr);
}
FX_BOOL CGdiPrinterDriver::StartDIBits(const CFX_DIBSource* pSource,
int bitmap_alpha,
uint32_t color,
const CFX_Matrix* pMatrix,
uint32_t render_flags,
void*& handle,
int blend_type) {
if (bitmap_alpha < 255 || pSource->HasAlpha() ||
(pSource->IsAlphaMask() && (pSource->GetBPP() != 1))) {
return FALSE;
}
CFX_FloatRect unit_rect = pMatrix->GetUnitRect();
FX_RECT full_rect = unit_rect.GetOutterRect();
if (FXSYS_fabs(pMatrix->b) < 0.5f && pMatrix->a != 0 &&
FXSYS_fabs(pMatrix->c) < 0.5f && pMatrix->d != 0) {
FX_BOOL bFlipX = pMatrix->a < 0;
FX_BOOL bFlipY = pMatrix->d > 0;
return StretchDIBits(pSource, color,
bFlipX ? full_rect.right : full_rect.left,
bFlipY ? full_rect.bottom : full_rect.top,
bFlipX ? -full_rect.Width() : full_rect.Width(),
bFlipY ? -full_rect.Height() : full_rect.Height(),
nullptr, 0, blend_type);
}
if (FXSYS_fabs(pMatrix->a) < 0.5f && FXSYS_fabs(pMatrix->d) < 0.5f) {
std::unique_ptr<CFX_DIBitmap> pTransformed(
pSource->SwapXY(pMatrix->c > 0, pMatrix->b < 0));
if (!pTransformed)
return FALSE;
return StretchDIBits(pTransformed.get(), color, full_rect.left,
full_rect.top, full_rect.Width(), full_rect.Height(),
nullptr, 0, blend_type);
}
return FALSE;
}
#endif
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