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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"
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
#include <windows.h>
#include "../../../include/fxge/fx_ge_win32.h"
#include "win32_int.h"
#include "../../../include/fxge/fx_freetype.h"
#include "../ge/text_int.h"
#include "../dib/dib_int.h"
#define SIZETHRESHOLD 1000
#define OUTPUTPSLEN 4096
CGdiPrinterDriver::CGdiPrinterDriver(HDC hDC) : CGdiDeviceDriver(hDC, FXDC_PRINTER)
{
m_HorzSize = ::GetDeviceCaps(m_hDC, HORZSIZE);
m_VertSize = ::GetDeviceCaps(m_hDC, VERTSIZE);
m_bSupportROP = TRUE;
}
int CGdiPrinterDriver::GetDeviceCaps(int caps_id)
{
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, FX_DWORD color, const FX_RECT* pSrcRect, int left, int top, int blend_type,
int alpha_flag, void* pIccTransform)
{
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, alpha_flag, pIccTransform, FXDIB_BLEND_NORMAL);
}
ASSERT(pSource != NULL && !pSource->IsAlphaMask() && pSrcRect != NULL);
ASSERT(blend_type == FXDIB_BLEND_NORMAL);
if (pSource->HasAlpha()) {
return FALSE;
}
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (pBitmap == NULL) {
return FALSE;
}
return GDI_SetDIBits(pBitmap, pSrcRect, left, top, pIccTransform);
}
FX_BOOL CGdiPrinterDriver::StretchDIBits(const CFX_DIBSource* pSource, FX_DWORD color, int dest_left, int dest_top,
int dest_width, int dest_height, const FX_RECT* pClipRect, FX_DWORD flags,
int alpha_flag, void* pIccTransform, int blend_type)
{
if (pSource->IsAlphaMask()) {
int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color);
if (pSource->GetBPP() != 1 || alpha != 255 || !m_bSupportROP) {
return FALSE;
}
if (dest_width < 0 || dest_height < 0) {
CFX_DIBitmap* pFlipped = pSource->FlipImage(dest_width < 0, dest_height < 0);
if (pFlipped == NULL) {
return FALSE;
}
if (dest_width < 0) {
dest_left += dest_width;
}
if (dest_height < 0) {
dest_top += dest_height;
}
FX_BOOL ret = GDI_StretchBitMask(pFlipped, dest_left, dest_top, abs(dest_width), abs(dest_height), color, flags, alpha_flag, pIccTransform);
delete pFlipped;
return ret;
}
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (pBitmap == NULL) {
return FALSE;
}
return GDI_StretchBitMask(pBitmap, dest_left, dest_top, dest_width, dest_height, color, flags, alpha_flag, pIccTransform);
} else {
ASSERT(pSource != NULL);
if (pSource->HasAlpha()) {
return FALSE;
}
if (dest_width < 0 || dest_height < 0) {
CFX_DIBitmap* pFlipped = pSource->FlipImage(dest_width < 0, dest_height < 0);
if (pFlipped == NULL) {
return FALSE;
}
if (dest_width < 0) {
dest_left += dest_width;
}
if (dest_height < 0) {
dest_top += dest_height;
}
FX_BOOL ret = GDI_StretchDIBits(pFlipped, dest_left, dest_top, abs(dest_width), abs(dest_height), flags, pIccTransform);
delete pFlipped;
return ret;
}
CFX_DIBExtractor temp(pSource);
CFX_DIBitmap* pBitmap = temp;
if (pBitmap == NULL) {
return FALSE;
}
return GDI_StretchDIBits(pBitmap, dest_left, dest_top, dest_width, dest_height, flags, pIccTransform);
}
}
static CFX_DIBitmap* Transform1bppBitmap(const CFX_DIBSource* pSrc, const CFX_AffineMatrix* pDestMatrix)
{
ASSERT(pSrc->GetFormat() == FXDIB_1bppRgb || pSrc->GetFormat() == FXDIB_1bppMask || pSrc->GetFormat() == FXDIB_1bppCmyk);
CFX_FloatRect unit_rect = pDestMatrix->GetUnitRect();
FX_RECT full_rect = unit_rect.GetOutterRect();
int full_left = full_rect.left;
int full_top = full_rect.top;
CFX_DIBExtractor src_bitmap(pSrc);
CFX_DIBitmap* pSrcBitmap = src_bitmap;
if (pSrcBitmap == NULL) {
return NULL;
}
int src_width = pSrcBitmap->GetWidth(), src_height = pSrcBitmap->GetHeight();
FX_LPBYTE src_buf = pSrcBitmap->GetBuffer();
FX_DWORD src_pitch = pSrcBitmap->GetPitch();
FX_FLOAT dest_area = pDestMatrix->GetUnitArea();
FX_FLOAT area_scale = FXSYS_Div((FX_FLOAT)(src_width * src_height), dest_area);
FX_FLOAT size_scale = FXSYS_sqrt(area_scale);
CFX_AffineMatrix adjusted_matrix(*pDestMatrix);
adjusted_matrix.Scale(size_scale, size_scale);
CFX_FloatRect result_rect_f = adjusted_matrix.GetUnitRect();
FX_RECT result_rect = result_rect_f.GetOutterRect();
CFX_AffineMatrix src2result;
src2result.e = adjusted_matrix.c + adjusted_matrix.e;
src2result.f = adjusted_matrix.d + adjusted_matrix.f;
src2result.a = adjusted_matrix.a / pSrcBitmap->GetWidth();
src2result.b = adjusted_matrix.b / pSrcBitmap->GetWidth();
src2result.c = -adjusted_matrix.c / pSrcBitmap->GetHeight();
src2result.d = -adjusted_matrix.d / pSrcBitmap->GetHeight();
src2result.TranslateI(-result_rect.left, -result_rect.top);
CFX_AffineMatrix result2src;
result2src.SetReverse(src2result);
CPDF_FixedMatrix result2src_fix(result2src, 8);
int result_width = result_rect.Width();
int result_height = result_rect.Height();
CFX_DIBitmap* pTempBitmap = new CFX_DIBitmap;
if (!pTempBitmap->Create(result_width, result_height, pSrc->GetFormat())) {
delete pTempBitmap;
if (pSrcBitmap != src_bitmap) {
delete pSrcBitmap;
}
return NULL;
}
pTempBitmap->CopyPalette(pSrc->GetPalette());
FX_LPBYTE dest_buf = pTempBitmap->GetBuffer();
int dest_pitch = pTempBitmap->GetPitch();
FXSYS_memset8(dest_buf, pSrc->IsAlphaMask() ? 0 : 0xff, dest_pitch * result_height);
if (pSrcBitmap->IsAlphaMask()) {
for (int dest_y = 0; dest_y < result_height; dest_y ++) {
FX_LPBYTE dest_scan = dest_buf + dest_y * dest_pitch;
for (int dest_x = 0; dest_x < result_width; dest_x ++) {
int src_x, src_y;
result2src_fix.Transform(dest_x, dest_y, src_x, src_y);
if (src_x < 0 || src_x >= src_width || src_y < 0 || src_y >= src_height) {
continue;
}
if (!((src_buf + src_pitch * src_y)[src_x / 8] & (1 << (7 - src_x % 8)))) {
continue;
}
dest_scan[dest_x / 8] |= 1 << (7 - dest_x % 8);
}
}
} else {
for (int dest_y = 0; dest_y < result_height; dest_y ++) {
FX_LPBYTE dest_scan = dest_buf + dest_y * dest_pitch;
for (int dest_x = 0; dest_x < result_width; dest_x ++) {
int src_x, src_y;
result2src_fix.Transform(dest_x, dest_y, src_x, src_y);
if (src_x < 0 || src_x >= src_width || src_y < 0 || src_y >= src_height) {
continue;
}
if ((src_buf + src_pitch * src_y)[src_x / 8] & (1 << (7 - src_x % 8))) {
continue;
}
dest_scan[dest_x / 8] &= ~(1 << (7 - dest_x % 8));
}
}
}
if (pSrcBitmap != src_bitmap) {
delete pSrcBitmap;
}
return pTempBitmap;
}
FX_BOOL CGdiPrinterDriver::StartDIBits(const CFX_DIBSource* pSource, int bitmap_alpha, FX_DWORD color,
const CFX_AffineMatrix* pMatrix, FX_DWORD render_flags, FX_LPVOID& handle,
int alpha_flag, void* pIccTransform, int blend_type)
{
if (bitmap_alpha < 255 || pSource->HasAlpha() || (pSource->IsAlphaMask() && (pSource->GetBPP() != 1 || !m_bSupportROP))) {
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(), NULL, 0,
alpha_flag, pIccTransform, blend_type);
}
if (FXSYS_fabs(pMatrix->a) < 0.5f && FXSYS_fabs(pMatrix->d) < 0.5f) {
CFX_DIBitmap* pTransformed = pSource->SwapXY(pMatrix->c > 0, pMatrix->b < 0);
if (pTransformed == NULL) {
return FALSE;
}
FX_BOOL ret = StretchDIBits(pTransformed, color, full_rect.left, full_rect.top, full_rect.Width(), full_rect.Height(), NULL, 0,
alpha_flag, pIccTransform, blend_type);
delete pTransformed;
return ret;
}
if (pSource->GetBPP() == 1) {
CFX_DIBitmap* pTransformed = Transform1bppBitmap(pSource, pMatrix);
if (pIccTransform == NULL) {
return FALSE;
}
SaveState();
CFX_PathData path;
path.AppendRect(0, 0, 1.0f, 1.0f);
SetClip_PathFill(&path, pMatrix, WINDING);
FX_BOOL ret = StretchDIBits(pTransformed, color, full_rect.left, full_rect.top, full_rect.Width(), full_rect.Height(), NULL, 0,
alpha_flag, pIccTransform, blend_type);
RestoreState();
delete pTransformed;
handle = NULL;
return ret;
}
return FALSE;
}
CPSOutput::CPSOutput(HDC hDC)
{
m_hDC = hDC;
m_pBuf = NULL;
}
CPSOutput::~CPSOutput()
{
if (m_pBuf) {
FX_Free(m_pBuf);
}
}
void CPSOutput::Init()
{
m_pBuf = FX_Alloc(FX_CHAR, 1026);
}
void CPSOutput::OutputPS(FX_LPCSTR string, int len)
{
if (len < 0) {
len = (int)FXSYS_strlen(string);
}
int sent_len = 0;
while (len > 0) {
int send_len = len > 1024 ? 1024 : len;
*(FX_WORD*)m_pBuf = send_len;
FXSYS_memcpy(m_pBuf + 2, string + sent_len, send_len);
int ret = ExtEscape(m_hDC, PASSTHROUGH, send_len + 2, m_pBuf, 0, NULL);
sent_len += send_len;
len -= send_len;
}
}
CPSPrinterDriver::CPSPrinterDriver()
{
m_pPSOutput = NULL;
m_bCmykOutput = FALSE;
}
CPSPrinterDriver::~CPSPrinterDriver()
{
EndRendering();
if (m_pPSOutput) {
delete m_pPSOutput;
}
}
FX_BOOL CPSPrinterDriver::Init(HDC hDC, int pslevel, FX_BOOL bCmykOutput)
{
m_hDC = hDC;
m_HorzSize = ::GetDeviceCaps(m_hDC, HORZSIZE);
m_VertSize = ::GetDeviceCaps(m_hDC, VERTSIZE);
m_Width = ::GetDeviceCaps(m_hDC, HORZRES);
m_Height = ::GetDeviceCaps(m_hDC, VERTRES);
m_nBitsPerPixel = ::GetDeviceCaps(m_hDC, BITSPIXEL);
m_pPSOutput = new CPSOutput(hDC);
((CPSOutput*)m_pPSOutput)->Init();
m_PSRenderer.Init(m_pPSOutput, pslevel, m_Width, m_Height, bCmykOutput);
m_bCmykOutput = bCmykOutput;
HRGN hRgn = ::CreateRectRgn(0, 0, 1, 1);
int ret = ::GetClipRgn(hDC, hRgn);
if (ret == 1) {
ret = ::GetRegionData(hRgn, 0, NULL);
if (ret) {
RGNDATA* pData = (RGNDATA*)FX_Alloc(FX_BYTE, ret);
if (!pData) {
return FALSE;
}
ret = ::GetRegionData(hRgn, ret, pData);
if (ret) {
CFX_PathData path;
path.AllocPointCount(pData->rdh.nCount * 5);
for (FX_DWORD i = 0; i < pData->rdh.nCount; i ++) {
RECT* pRect = (RECT*)(pData->Buffer + pData->rdh.nRgnSize * i);
path.AppendRect((FX_FLOAT)pRect->left, (FX_FLOAT)pRect->bottom, (FX_FLOAT)pRect->right, (FX_FLOAT)pRect->top);
}
m_PSRenderer.SetClip_PathFill(&path, NULL, FXFILL_WINDING);
}
FX_Free(pData);
}
}
::DeleteObject(hRgn);
return TRUE;
}
int CPSPrinterDriver::GetDeviceCaps(int caps_id)
{
switch (caps_id) {
case FXDC_DEVICE_CLASS:
return FXDC_PRINTER;
case FXDC_PIXEL_WIDTH:
return m_Width;
case FXDC_PIXEL_HEIGHT:
return m_Height;
case FXDC_BITS_PIXEL:
return m_nBitsPerPixel;
case FXDC_RENDER_CAPS:
return m_bCmykOutput ? FXRC_BIT_MASK | FXRC_CMYK_OUTPUT : FXRC_BIT_MASK;
case FXDC_HORZ_SIZE:
return m_HorzSize;
case FXDC_VERT_SIZE:
return m_VertSize;
}
return 0;
}
FX_BOOL CPSPrinterDriver::StartRendering()
{
return m_PSRenderer.StartRendering();
}
void CPSPrinterDriver::EndRendering()
{
m_PSRenderer.EndRendering();
}
void CPSPrinterDriver::SaveState()
{
m_PSRenderer.SaveState();
}
void CPSPrinterDriver::RestoreState(FX_BOOL bKeepSaved)
{
m_PSRenderer.RestoreState(bKeepSaved);
}
FX_BOOL CPSPrinterDriver::SetClip_PathFill(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device,
int fill_mode)
{
m_PSRenderer.SetClip_PathFill(pPathData, pObject2Device, fill_mode);
return TRUE;
}
FX_BOOL CPSPrinterDriver::SetClip_PathStroke(const CFX_PathData* pPathData,
const CFX_AffineMatrix* pObject2Device,
const CFX_GraphStateData* pGraphState)
{
m_PSRenderer.SetClip_PathStroke(pPathData, pObject2Device, pGraphState);
return TRUE;
}
FX_BOOL CPSPrinterDriver::DrawPath(const CFX_PathData* pPathData,
const CFX_AffineMatrix* pObject2Device,
const CFX_GraphStateData* pGraphState, FX_ARGB fill_color, FX_ARGB stroke_color,
int fill_mode, int alpha_flag, void* pIccTransform, int blend_type)
{
if (blend_type != FXDIB_BLEND_NORMAL) {
return FALSE;
}
return m_PSRenderer.DrawPath(pPathData, pObject2Device, pGraphState, fill_color, stroke_color, fill_mode & 3, alpha_flag, pIccTransform);
}
FX_BOOL CPSPrinterDriver::GetClipBox(FX_RECT* pRect)
{
*pRect = m_PSRenderer.GetClipBox();
return TRUE;
}
FX_BOOL CPSPrinterDriver::SetDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, const FX_RECT* pSrcRect, int left, int top, int blend_type,
int alpha_flag, void* pIccTransform)
{
if (blend_type != FXDIB_BLEND_NORMAL) {
return FALSE;
}
return m_PSRenderer.SetDIBits(pBitmap, color, left, top, alpha_flag, pIccTransform);
}
FX_BOOL CPSPrinterDriver::StretchDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, int dest_left, int dest_top,
int dest_width, int dest_height, const FX_RECT* pClipRect, FX_DWORD flags,
int alpha_flag, void* pIccTransform, int blend_type)
{
if (blend_type != FXDIB_BLEND_NORMAL) {
return FALSE;
}
return m_PSRenderer.StretchDIBits(pBitmap, color, dest_left, dest_top, dest_width, dest_height, flags, alpha_flag, pIccTransform);
}
FX_BOOL CPSPrinterDriver::StartDIBits(const CFX_DIBSource* pBitmap, int bitmap_alpha, FX_DWORD color,
const CFX_AffineMatrix* pMatrix, FX_DWORD render_flags, FX_LPVOID& handle,
int alpha_flag, void* pIccTransform, int blend_type)
{
if (blend_type != FXDIB_BLEND_NORMAL) {
return FALSE;
}
if (bitmap_alpha < 255) {
return FALSE;
}
handle = NULL;
return m_PSRenderer.DrawDIBits(pBitmap, color, pMatrix, render_flags, alpha_flag, pIccTransform);
}
FX_BOOL CPSPrinterDriver::DrawDeviceText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont,
CFX_FontCache* pCache, const CFX_AffineMatrix* pObject2Device, FX_FLOAT font_size, FX_DWORD color,
int alpha_flag, void* pIccTransform)
{
return m_PSRenderer.DrawText(nChars, pCharPos, pFont, pCache, pObject2Device, font_size, color, alpha_flag, pIccTransform);
}
#endif