本文整理汇总了C++中FXSYS_round函数的典型用法代码示例。如果您正苦于以下问题：C++ FXSYS_round函数的具体用法？C++ FXSYS_round怎么用？C++ FXSYS_round使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了FXSYS_round函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: FXSYS_round
CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode,
const CFX_AffineMatrix* pMatrix,
FX_FLOAT retinaScaleX,
FX_FLOAT retinaScaleY) {
_CPDF_UniqueKeyGen keygen;
keygen.Generate(
4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000),
FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000));
CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen);
CPDF_Type3Glyphs* pSizeCache;
auto it = m_SizeMap.find(FaceGlyphsKey);
if (it == m_SizeMap.end()) {
pSizeCache = new CPDF_Type3Glyphs;
m_SizeMap[FaceGlyphsKey] = pSizeCache;
} else {
pSizeCache = it->second;
}
CFX_GlyphBitmap* pGlyphBitmap;
if (pSizeCache->m_GlyphMap.Lookup((void*)(uintptr_t)charcode,
(void*&)pGlyphBitmap)) {
return pGlyphBitmap;
}
pGlyphBitmap =
RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY);
pSizeCache->m_GlyphMap.SetAt((void*)(uintptr_t)charcode, pGlyphBitmap);
return pGlyphBitmap;
}
开发者ID:hoanganhx86，项目名称:pdfium，代码行数:27，代码来源:fpdf_render_text.cpp
示例2: FXSYS_fabs
CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize,
FX_DWORD charcode,
const CFX_AffineMatrix* pMatrix,
FX_FLOAT retinaScaleX,
FX_FLOAT retinaScaleY) {
const CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode);
if (!pChar || !pChar->m_pBitmap)
return nullptr;
CFX_DIBitmap* pBitmap = pChar->m_pBitmap;
CFX_AffineMatrix image_matrix, text_matrix;
image_matrix = pChar->m_ImageMatrix;
text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0);
image_matrix.Concat(text_matrix);
CFX_DIBitmap* pResBitmap = NULL;
int left, top;
if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 &&
FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) {
int top_line, bottom_line;
top_line = _DetectFirstLastScan(pBitmap, TRUE);
bottom_line = _DetectFirstLastScan(pBitmap, FALSE);
if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) {
FX_FLOAT top_y = image_matrix.d + image_matrix.f;
FX_FLOAT bottom_y = image_matrix.f;
FX_BOOL bFlipped = top_y > bottom_y;
if (bFlipped) {
FX_FLOAT temp = top_y;
top_y = bottom_y;
bottom_y = temp;
}
pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line);
pResBitmap = pBitmap->StretchTo(
(int)(FXSYS_round(image_matrix.a) * retinaScaleX),
(int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) *
retinaScaleY));
top = top_line;
if (image_matrix.a < 0) {
image_matrix.Scale(retinaScaleX, retinaScaleY);
left = FXSYS_round(image_matrix.e + image_matrix.a);
} else {
left = FXSYS_round(image_matrix.e);
}
} else {
}
}
if (pResBitmap == NULL) {
image_matrix.Scale(retinaScaleX, retinaScaleY);
pResBitmap = pBitmap->TransformTo(&image_matrix, left, top);
}
if (pResBitmap == NULL) {
return NULL;
}
CFX_GlyphBitmap* pGlyph = new CFX_GlyphBitmap;
pGlyph->m_Left = left;
pGlyph->m_Top = -top;
pGlyph->m_Bitmap.TakeOver(pResBitmap);
delete pResBitmap;
return pGlyph;
}
开发者ID:hoanganhx86，项目名称:pdfium，代码行数:59，代码来源:fpdf_render_text.cpp
示例3: FDE_ParseCSSColor
FX_BOOL FDE_ParseCSSColor(const FX_WCHAR* pszValue,
int32_t iValueLen,
FX_ARGB& dwColor) {
FXSYS_assert(pszValue != NULL && iValueLen > 0);
if (*pszValue == '#') {
switch (iValueLen) {
case 4: {
uint8_t red = FX_Hex2Dec((uint8_t)pszValue[1], (uint8_t)pszValue[1]);
uint8_t green = FX_Hex2Dec((uint8_t)pszValue[2], (uint8_t)pszValue[2]);
uint8_t blue = FX_Hex2Dec((uint8_t)pszValue[3], (uint8_t)pszValue[3]);
dwColor = ArgbEncode(255, red, green, blue);
}
return TRUE;
case 7: {
uint8_t red = FX_Hex2Dec((uint8_t)pszValue[1], (uint8_t)pszValue[2]);
uint8_t green = FX_Hex2Dec((uint8_t)pszValue[3], (uint8_t)pszValue[4]);
uint8_t blue = FX_Hex2Dec((uint8_t)pszValue[5], (uint8_t)pszValue[6]);
dwColor = ArgbEncode(255, red, green, blue);
}
return TRUE;
}
} else if (iValueLen >= 10) {
if (pszValue[iValueLen - 1] != ')' || FX_wcsnicmp(L"rgb(", pszValue, 4)) {
return FALSE;
}
uint8_t rgb[3] = {0};
FX_FLOAT fValue;
FDE_CSSPRIMITIVETYPE eType;
CFDE_CSSValueListParser list(pszValue + 4, iValueLen - 5, ',');
for (int32_t i = 0; i < 3; ++i) {
if (!list.NextValue(eType, pszValue, iValueLen)) {
return FALSE;
}
if (eType != FDE_CSSPRIMITIVETYPE_Number) {
return FALSE;
}
if (!FDE_ParseCSSNumber(pszValue, iValueLen, fValue, eType)) {
return FALSE;
}
rgb[i] = eType == FDE_CSSPRIMITIVETYPE_Percent
? FXSYS_round(fValue * 2.55f)
: FXSYS_round(fValue);
}
dwColor = ArgbEncode(255, rgb[0], rgb[1], rgb[2]);
return TRUE;
} else {
FDE_LPCCSSCOLORTABLE pColor = FDE_GetCSSColorByName(pszValue, iValueLen);
if (pColor != NULL) {
dwColor = pColor->dwValue;
return TRUE;
}
}
return FALSE;
}
开发者ID:JinAirsOs，项目名称:pdfium，代码行数:54，代码来源:fde_cssdatatable.cpp
示例4: TransformRect
void CFX_Matrix::TransformRect(CFX_Rect& rect) const {
FX_FLOAT left = (FX_FLOAT)rect.left;
FX_FLOAT top = (FX_FLOAT)rect.bottom();
FX_FLOAT right = (FX_FLOAT)rect.right();
FX_FLOAT bottom = (FX_FLOAT)rect.top;
TransformRect(left, right, top, bottom);
rect.left = FXSYS_round(left);
rect.top = FXSYS_round(bottom);
rect.width = FXSYS_round(right - left);
rect.height = FXSYS_round(top - bottom);
}
开发者ID:endlessm，项目名称:chromium-browser，代码行数:11，代码来源:fx_basic_coords.cpp
示例5: GetAdobeCharName
CPDF_Type3Char* CPDF_Type3Font::LoadChar(uint32_t charcode, int level) {
if (level >= _FPDF_MAX_TYPE3_FORM_LEVEL_)
return nullptr;
auto it = m_CacheMap.find(charcode);
if (it != m_CacheMap.end())
return it->second;
const FX_CHAR* name =
GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode);
if (!name)
return nullptr;
CPDF_Stream* pStream =
ToStream(m_pCharProcs ? m_pCharProcs->GetDirectObjectBy(name) : nullptr);
if (!pStream)
return nullptr;
std::unique_ptr<CPDF_Type3Char> pNewChar(new CPDF_Type3Char(new CPDF_Form(
m_pDocument, m_pFontResources ? m_pFontResources : m_pPageResources,
pStream, nullptr)));
// This can trigger recursion into this method. The content of |m_CacheMap|
// can change as a result. Thus after it returns, check the cache again for
// a cache hit.
pNewChar->m_pForm->ParseContent(nullptr, nullptr, pNewChar.get(), level + 1);
it = m_CacheMap.find(charcode);
if (it != m_CacheMap.end())
return it->second;
FX_FLOAT scale = m_FontMatrix.GetXUnit();
pNewChar->m_Width = (int32_t)(pNewChar->m_Width * scale + 0.5f);
FX_RECT& rcBBox = pNewChar->m_BBox;
CFX_FloatRect char_rect(
(FX_FLOAT)rcBBox.left / 1000.0f, (FX_FLOAT)rcBBox.bottom / 1000.0f,
(FX_FLOAT)rcBBox.right / 1000.0f, (FX_FLOAT)rcBBox.top / 1000.0f);
if (rcBBox.right <= rcBBox.left || rcBBox.bottom >= rcBBox.top)
char_rect = pNewChar->m_pForm->CalcBoundingBox();
char_rect.Transform(&m_FontMatrix);
rcBBox.left = FXSYS_round(char_rect.left * 1000);
rcBBox.right = FXSYS_round(char_rect.right * 1000);
rcBBox.top = FXSYS_round(char_rect.top * 1000);
rcBBox.bottom = FXSYS_round(char_rect.bottom * 1000);
ASSERT(!pdfium::ContainsKey(m_CacheMap, charcode));
CPDF_Type3Char* pCachedChar = pNewChar.release();
m_CacheMap[charcode] = pCachedChar;
if (pCachedChar->m_pForm->GetPageObjectList()->empty())
pCachedChar->m_pForm.reset();
return pCachedChar;
}
开发者ID:endlessm，项目名称:chromium-browser，代码行数:52，代码来源:cpdf_type3font.cpp
示例6: FXSYS_RGB
FX_DWORD CPDF_Bookmark::GetColorRef() const {
if (!m_pDict) {
return 0;
}
CPDF_Array* pColor = m_pDict->GetArray("C");
if (!pColor) {
return FXSYS_RGB(0, 0, 0);
}
int r = FXSYS_round(pColor->GetNumber(0) * 255);
int g = FXSYS_round(pColor->GetNumber(1) * 255);
int b = FXSYS_round(pColor->GetNumber(2) * 255);
return FXSYS_RGB(r, g, b);
}
开发者ID:hoanganhx86，项目名称:pdfium，代码行数:13，代码来源:doc_bookmark.cpp
示例7: GetRGB
void CPDF_CalRGB::TranslateImageLine(uint8_t* pDestBuf, const uint8_t* pSrcBuf, int pixels, int image_width, int image_height, FX_BOOL bTransMask) const
{
if (bTransMask) {
FX_FLOAT Cal[3];
FX_FLOAT R, G, B;
for(int i = 0; i < pixels; i ++) {
Cal[0] = ((FX_FLOAT)pSrcBuf[2]) / 255;
Cal[1] = ((FX_FLOAT)pSrcBuf[1]) / 255;
Cal[2] = ((FX_FLOAT)pSrcBuf[0]) / 255;
GetRGB(Cal, R, G, B);
pDestBuf[0] = FXSYS_round(B * 255);
pDestBuf[1] = FXSYS_round(G * 255);
pDestBuf[2] = FXSYS_round(R * 255);
pSrcBuf += 3;
pDestBuf += 3;
}
}
ReverseRGB(pDestBuf, pSrcBuf, pixels);
}
开发者ID:abbro-ca，项目名称:pdfium，代码行数:19，代码来源:fpdf_page_colors.cpp
示例8: FXSYS_fabs
CFX_DIBitmap* CPDF_RenderStatus::GetBackdrop(const CPDF_PageObject* pObj,
const FX_RECT& rect,
int& left,
int& top,
FX_BOOL bBackAlphaRequired) {
FX_RECT bbox = rect;
bbox.Intersect(m_pDevice->GetClipBox());
left = bbox.left;
top = bbox.top;
CFX_Matrix deviceCTM = m_pDevice->GetCTM();
FX_FLOAT scaleX = FXSYS_fabs(deviceCTM.a);
FX_FLOAT scaleY = FXSYS_fabs(deviceCTM.d);
int width = FXSYS_round(bbox.Width() * scaleX);
int height = FXSYS_round(bbox.Height() * scaleY);
std::unique_ptr<CFX_DIBitmap> pBackdrop(new CFX_DIBitmap);
if (bBackAlphaRequired && !m_bDropObjects)
pBackdrop->Create(width, height, FXDIB_Argb);
else
m_pDevice->CreateCompatibleBitmap(pBackdrop.get(), width, height);
if (!pBackdrop->GetBuffer())
return nullptr;
FX_BOOL bNeedDraw;
if (pBackdrop->HasAlpha())
bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT);
else
bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_GET_BITS);
if (!bNeedDraw) {
m_pDevice->GetDIBits(pBackdrop.get(), left, top);
return pBackdrop.release();
}
CFX_Matrix FinalMatrix = m_DeviceMatrix;
FinalMatrix.TranslateI(-left, -top);
FinalMatrix.Scale(scaleX, scaleY);
pBackdrop->Clear(pBackdrop->HasAlpha() ? 0 : 0xffffffff);
CFX_FxgeDevice device;
device.Attach(pBackdrop.get(), false, nullptr, false);
m_pContext->Render(&device, pObj, &m_Options, &FinalMatrix);
return pBackdrop.release();
}
开发者ID:gradescope，项目名称:pdfium，代码行数:43，代码来源:fpdf_render.cpp
示例9: FXSYS_round
CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY)
{
_CPDF_UniqueKeyGen keygen;
keygen.Generate(4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000),
FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000));
CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen);
CPDF_Type3Glyphs* pSizeCache = NULL;
if(!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) {
pSizeCache = FX_NEW CPDF_Type3Glyphs;
m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache);
}
CFX_GlyphBitmap* pGlyphBitmap;
if(pSizeCache->m_GlyphMap.Lookup((FX_LPVOID)(FX_UINTPTR)charcode, (void*&)pGlyphBitmap)) {
return pGlyphBitmap;
}
pGlyphBitmap = RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY);
pSizeCache->m_GlyphMap.SetAt((FX_LPVOID)(FX_UINTPTR)charcode, pGlyphBitmap);
return pGlyphBitmap;
}
开发者ID:151706061，项目名称:PDFium，代码行数:19，代码来源:fpdf_render_text.cpp
示例10: CGContextRetain
CFX_QuartzDeviceDriver::CFX_QuartzDeviceDriver(CGContextRef context, FX_INT32 deviceClass)
{
m_saveCount = 0;
_context = context;
_deviceClass = deviceClass;
CGContextRetain(_context);
CGRect r = CGContextGetClipBoundingBox(context);
_width = FXSYS_round(r.size.width);
_height = FXSYS_round(r.size.height);
_renderCaps = FXRC_SOFT_CLIP | FXRC_BLEND_MODE |
FXRC_ALPHA_PATH | FXRC_ALPHA_IMAGE |
FXRC_BIT_MASK | FXRC_ALPHA_MASK;
if (_deviceClass != FXDC_DISPLAY) {
} else {
CGImageRef image = CGBitmapContextCreateImage(_context);
if (image) {
_renderCaps |= FXRC_GET_BITS;
_width = CGImageGetWidth(image);
_height = CGImageGetHeight(image);
CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(image);
if (kCGImageAlphaPremultipliedFirst == alphaInfo ||
kCGImageAlphaPremultipliedLast == alphaInfo ||
kCGImageAlphaOnly == alphaInfo) {
_renderCaps |= FXRC_ALPHA_OUTPUT;
}
}
CGImageRelease(image);
}
CGAffineTransform ctm = CGContextGetCTM(_context);
CGContextSaveGState(_context);
m_saveCount++;
if (ctm.d >= 0) {
CGFloat offset_x, offset_y;
offset_x = ctm.tx;
offset_y = ctm.ty;
CGContextTranslateCTM(_context, -offset_x, -offset_y);
CGContextConcatCTM(_context, CGAffineTransformMake(1, 0, 0, -1, offset_x, _height + offset_y));
}
_foxitDevice2User = CGAffineTransformIdentity;
_user2FoxitDevice = CGAffineTransformInvert(_foxitDevice2User);
}
开发者ID:151706061，项目名称:PDFium，代码行数:41，代码来源:fx_quartz_device.cpp
示例11: GetDisplayMatrix
void CPDFXFA_Page::PageToDevice(int start_x,
int start_y,
int size_x,
int size_y,
int rotate,
double page_x,
double page_y,
int* device_x,
int* device_y) {
if (!m_pPDFPage && !m_pXFAPageView)
return;
CFX_Matrix page2device;
FX_FLOAT device_x_f, device_y_f;
GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f,
device_y_f);
*device_x = FXSYS_round(device_x_f);
*device_y = FXSYS_round(device_y_f);
}
开发者ID:hfiguiere，项目名称:pdfium，代码行数:23，代码来源:fpdfxfa_page.cpp
示例12: FXSYS_round
FX_BOOL CPDF_Type3Font::Load() {
m_pFontResources = m_pFontDict->GetDictBy("Resources");
CPDF_Array* pMatrix = m_pFontDict->GetArrayBy("FontMatrix");
FX_FLOAT xscale = 1.0f, yscale = 1.0f;
if (pMatrix) {
m_FontMatrix = pMatrix->GetMatrix();
xscale = m_FontMatrix.a;
yscale = m_FontMatrix.d;
}
CPDF_Array* pBBox = m_pFontDict->GetArrayBy("FontBBox");
if (pBBox) {
m_FontBBox.left = (int32_t)(pBBox->GetNumberAt(0) * xscale * 1000);
m_FontBBox.bottom = (int32_t)(pBBox->GetNumberAt(1) * yscale * 1000);
m_FontBBox.right = (int32_t)(pBBox->GetNumberAt(2) * xscale * 1000);
m_FontBBox.top = (int32_t)(pBBox->GetNumberAt(3) * yscale * 1000);
}
int StartChar = m_pFontDict->GetIntegerBy("FirstChar");
CPDF_Array* pWidthArray = m_pFontDict->GetArrayBy("Widths");
if (pWidthArray && (StartChar >= 0 && StartChar < 256)) {
size_t count = pWidthArray->GetCount();
if (count > 256)
count = 256;
if (StartChar + count > 256)
count = 256 - StartChar;
for (size_t i = 0; i < count; i++) {
m_CharWidthL[StartChar + i] =
FXSYS_round(pWidthArray->GetNumberAt(i) * xscale * 1000);
}
}
m_pCharProcs = m_pFontDict->GetDictBy("CharProcs");
CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectBy("Encoding");
if (pEncoding) {
LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, FALSE, FALSE);
if (m_pCharNames) {
for (int i = 0; i < 256; i++) {
m_Encoding.m_Unicodes[i] =
PDF_UnicodeFromAdobeName(m_pCharNames[i].c_str());
if (m_Encoding.m_Unicodes[i] == 0) {
m_Encoding.m_Unicodes[i] = i;
}
}
}
}
return TRUE;
}
开发者ID:endlessm，项目名称:chromium-browser，代码行数:45，代码来源:cpdf_type3font.cpp
示例13: _AdjustBlue
static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[]) {
FX_FLOAT min_distance = 1000000.0f * 1.0f;
int closest_pos = -1;
for (int i = 0; i < count; i++) {
FX_FLOAT distance = (FX_FLOAT)FXSYS_fabs(pos - (FX_FLOAT)blues[i]);
if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) {
min_distance = distance;
closest_pos = i;
}
}
if (closest_pos >= 0) {
return blues[closest_pos];
}
int new_pos = FXSYS_round(pos);
if (count == TYPE3_MAX_BLUES) {
return new_pos;
}
blues[count++] = new_pos;
return new_pos;
}
开发者ID:hoanganhx86，项目名称:pdfium，代码行数:20，代码来源:fpdf_render_text.cpp
示例14: FXSYS_round
FX_BOOL CPDF_RenderStatus::ProcessInlines(CPDF_InlineImages* pInlines, const CFX_AffineMatrix* pObj2Device)
{
int bitmap_alpha = 255;
if (!pInlines->m_GeneralState.IsNull()) {
bitmap_alpha = FXSYS_round(pInlines->m_GeneralState.GetObject()->m_FillAlpha * 255);
}
if (pInlines->m_pStream) {
CPDF_DIBSource dibsrc;
if (!dibsrc.Load(m_pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) {
return TRUE;
}
pInlines->m_pBitmap = dibsrc.Clone();
pInlines->m_pStream->Release();
pInlines->m_pStream = NULL;
}
if (pInlines->m_pBitmap == NULL) {
return TRUE;
}
FX_ARGB fill_argb = 0;
if (pInlines->m_pBitmap->IsAlphaMask()) {
fill_argb = GetFillArgb(pInlines);
}
int flags = 0;
if (m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
flags |= RENDER_FORCE_DOWNSAMPLE;
} else if (m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
flags = 0;
}
for (int i = 0; i < pInlines->m_Matrices.GetSize(); i ++) {
CFX_AffineMatrix image_matrix = pInlines->m_Matrices.GetAt(i);
image_matrix.Concat(*pObj2Device);
CPDF_ImageRenderer renderer;
if (renderer.Start(this, pInlines->m_pBitmap, fill_argb, bitmap_alpha, &image_matrix, flags, FALSE, m_curBlend)) {
renderer.Continue(NULL);
}
}
return TRUE;
}
开发者ID:MWisBest，项目名称:android_external_pdfium，代码行数:38，代码来源:fpdf_render_image.cpp
示例15: CPDF_TransferFunc
CPDF_TransferFunc* CPDF_DocRenderData::GetTransferFunc(CPDF_Object* pObj) {
if (!pObj)
return nullptr;
auto it = m_TransferFuncMap.find(pObj);
if (it != m_TransferFuncMap.end()) {
CPDF_CountedObject<CPDF_TransferFunc>* pTransferCounter = it->second;
return pTransferCounter->AddRef();
}
std::unique_ptr<CPDF_Function> pFuncs[3];
FX_BOOL bUniTransfer = TRUE;
FX_BOOL bIdentity = TRUE;
if (CPDF_Array* pArray = pObj->AsArray()) {
bUniTransfer = FALSE;
if (pArray->GetCount() < 3)
return nullptr;
for (uint32_t i = 0; i < 3; ++i) {
pFuncs[2 - i] = CPDF_Function::Load(pArray->GetDirectObjectAt(i));
if (!pFuncs[2 - i])
return nullptr;
}
} else {
pFuncs[0] = CPDF_Function::Load(pObj);
if (!pFuncs[0])
return nullptr;
}
CPDF_TransferFunc* pTransfer = new CPDF_TransferFunc(m_pPDFDoc);
CPDF_CountedObject<CPDF_TransferFunc>* pTransferCounter =
new CPDF_CountedObject<CPDF_TransferFunc>(pTransfer);
m_TransferFuncMap[pObj] = pTransferCounter;
static const int kMaxOutputs = 16;
FX_FLOAT output[kMaxOutputs];
FXSYS_memset(output, 0, sizeof(output));
FX_FLOAT input;
int noutput;
for (int v = 0; v < 256; ++v) {
input = (FX_FLOAT)v / 255.0f;
if (bUniTransfer) {
if (pFuncs[0] && pFuncs[0]->CountOutputs() <= kMaxOutputs)
pFuncs[0]->Call(&input, 1, output, noutput);
int o = FXSYS_round(output[0] * 255);
if (o != v)
bIdentity = FALSE;
for (int i = 0; i < 3; ++i) {
pTransfer->m_Samples[i * 256 + v] = o;
}
} else {
for (int i = 0; i < 3; ++i) {
if (pFuncs[i] && pFuncs[i]->CountOutputs() <= kMaxOutputs) {
pFuncs[i]->Call(&input, 1, output, noutput);
int o = FXSYS_round(output[0] * 255);
if (o != v)
bIdentity = FALSE;
pTransfer->m_Samples[i * 256 + v] = o;
} else {
pTransfer->m_Samples[i * 256 + v] = v;
}
}
}
}
pTransfer->m_bIdentity = bIdentity;
return pTransferCounter->AddRef();
}
开发者ID:gradescope，项目名称:pdfium，代码行数:66，代码来源:fpdf_render.cpp
示例16: FXSYS_fabs
//.........这里部分代码省略.........
if (glyph.m_pGlyph == NULL) {
continue;
}
m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap,
glyph.m_OriginX + glyph.m_pGlyph->m_Left,
glyph.m_OriginY - glyph.m_pGlyph->m_Top, fill_argb);
}
FX_Free(pGlyphAndPos);
pGlyphAndPos = NULL;
}
CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE);
CPDF_RenderOptions Options = m_Options;
Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA;
Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE;
CPDF_Dictionary* pFormResource = NULL;
if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) {
pFormResource = pType3Char->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
}
if (fill_alpha == 255) {
CPDF_RenderStatus status;
status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &Options,
pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
status.m_Type3FontCache.Append(m_Type3FontCache);
status.m_Type3FontCache.Add(pType3Font);
m_pDevice->SaveState();
status.RenderObjectList(pType3Char->m_pForm, &matrix);
m_pDevice->RestoreState();
} else {
CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox();
rect_f.Transform(&matrix);
FX_RECT rect = rect_f.GetOutterRect();
CFX_FxgeDevice bitmap_device;
if (!bitmap_device.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_Argb)) {
return TRUE;
}
bitmap_device.GetBitmap()->Clear(0);
CPDF_RenderStatus status;
status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, this, pStates, &Options,
pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
status.m_Type3FontCache.Append(m_Type3FontCache);
status.m_Type3FontCache.Add(pType3Font);
matrix.TranslateI(-rect.left, -rect.top);
matrix.Scale(sa, sd);
status.RenderObjectList(pType3Char->m_pForm, &matrix);
m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top);
}
delete pStates;
} else if (pType3Char->m_pBitmap) {
if (device_class == FXDC_DISPLAY) {
CPDF_Type3Cache* pCache = GetCachedType3(pType3Font);
refTypeCache.m_dwCount++;
CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd);
if (pBitmap == NULL) {
continue;
}
int origin_x = FXSYS_round(matrix.e);
int origin_y = FXSYS_round(matrix.f);
if (pGlyphAndPos) {
pGlyphAndPos[iChar].m_pGlyph = pBitmap;
pGlyphAndPos[iChar].m_OriginX = origin_x;
pGlyphAndPos[iChar].m_OriginY = origin_y;
} else {
m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, origin_y - pBitmap->m_Top, fill_argb);
}
} else {
CFX_AffineMatrix image_matrix = pType3Char->m_ImageMatrix;
image_matrix.Concat(matrix);
CPDF_ImageRenderer renderer;
if (renderer.Start(this, pType3Char->m_pBitmap, fill_argb, 255, &image_matrix, 0, FALSE)) {
renderer.Continue(NULL);
}
if (!renderer.m_Result) {
return FALSE;
}
}
}
}
if (pGlyphAndPos) {
FX_RECT rect = FXGE_GetGlyphsBBox(pGlyphAndPos, textobj->m_nChars, 0, sa, sd);
CFX_DIBitmap bitmap;
if (!bitmap.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_8bppMask)) {
FX_Free(pGlyphAndPos);
return TRUE;
}
bitmap.Clear(0);
for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar];
if (glyph.m_pGlyph == NULL) {
continue;
}
bitmap.TransferBitmap((int)((glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa),
(int)((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * sd),
glyph.m_pGlyph->m_Bitmap.GetWidth(), glyph.m_pGlyph->m_Bitmap.GetHeight(),
&glyph.m_pGlyph->m_Bitmap, 0, 0);
}
m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb);
FX_Free(pGlyphAndPos);
}
return TRUE;
}
开发者ID:151706061，项目名称:PDFium，代码行数:101，代码来源:fpdf_render_text.cpp
示例17: switch
FX_BOOL CPDF_PSEngine::DoOperator(PDF_PSOP op) {
int i1, i2;
FX_FLOAT d1, d2;
switch (op) {
case PSOP_ADD:
d1 = Pop();
d2 = Pop();
Push(d1 + d2);
break;
case PSOP_SUB:
d2 = Pop();
d1 = Pop();
Push(d1 - d2);
break;
case PSOP_MUL:
d1 = Pop();
d2 = Pop();
Push(d1 * d2);
break;
case PSOP_DIV:
d2 = Pop();
d1 = Pop();
Push(d1 / d2);
break;
case PSOP_IDIV:
i2 = (int)Pop();
i1 = (int)Pop();
Push(i2 ? i1 / i2 : 0);
break;
case PSOP_MOD:
i2 = (int)Pop();
i1 = (int)Pop();
Push(i2 ? i1 % i2 : 0);
break;
case PSOP_NEG:
d1 = Pop();
Push(-d1);
break;
case PSOP_ABS:
d1 = Pop();
Push((FX_FLOAT)FXSYS_fabs(d1));
break;
case PSOP_CEILING:
d1 = Pop();
Push((FX_FLOAT)FXSYS_ceil(d1));
break;
case PSOP_FLOOR:
d1 = Pop();
Push((FX_FLOAT)FXSYS_floor(d1));
break;
case PSOP_ROUND:
d1 = Pop();
Push(FXSYS_round(d1));
break;
case PSOP_TRUNCATE:
i1 = (int)Pop();
Push(i1);
break;
case PSOP_SQRT:
d1 = Pop();
Push((FX_FLOAT)FXSYS_sqrt(d1));
break;
case PSOP_SIN:
d1 = Pop();
Push((FX_FLOAT)FXSYS_sin(d1 * FX_PI / 180.0f));
break;
case PSOP_COS:
d1 = Pop();
Push((FX_FLOAT)FXSYS_cos(d1 * FX_PI / 180.0f));
break;
case PSOP_ATAN:
d2 = Pop();
d1 = Pop();
d1 = (FX_FLOAT)(FXSYS_atan2(d1, d2) * 180.0 / FX_PI);
if (d1 < 0) {
d1 += 360;
}
Push(d1);
break;
case PSOP_EXP:
d2 = Pop();
d1 = Pop();
Push((FX_FLOAT)FXSYS_pow(d1, d2));
break;
case PSOP_LN:
d1 = Pop();
Push((FX_FLOAT)FXSYS_log(d1));
break;
case PSOP_LOG:
d1 = Pop();
Push((FX_FLOAT)FXSYS_log10(d1));
break;
case PSOP_CVI:
i1 = (int)Pop();
Push(i1);
break;
case PSOP_CVR:
break;
case PSOP_EQ:
d2 = Pop();
//.........这里部分代码省略.........
开发者ID:gradescope，项目名称:pdfium，代码行数:101，代码来源:fpdf_page_func.cpp
示例18: FXSYS_round
void CFX_Matrix::TransformPoint(int32_t& x, int32_t& y) const {
FX_FLOAT fx = a * x + c * y + e;
FX_FLOAT fy = b * x + d * y + f;
x = FXSYS_round(fx);
y = FXSYS_round(fy);
}
开发者ID:endlessm，项目名称:chromium-browser，代码行数:6，代码来源:fx_basic_coords.cpp
示例19: DrawAxialShading
static void DrawAxialShading(CFX_DIBitmap* pBitmap,
CFX_Matrix* pObject2Bitmap,
CPDF_Dictionary* pDict,
CPDF_Function** pFuncs,
int nFuncs,
CPDF_ColorSpace* pCS,
int alpha) {
ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
CPDF_Array* pCoords = pDict->GetArray("Coords");
if (!pCoords) {
return;
}
FX_FLOAT start_x = pCoords->GetNumber(0);
FX_FLOAT start_y = pCoords->GetNumber(1);
FX_FLOAT end_x = pCoords->GetNumber(2);
FX_FLOAT end_y = pCoords->GetNumber(3);
FX_FLOAT t_min = 0, t_max = 1.0f;
CPDF_Array* pArray = pDict->GetArray("Domain");
if (pArray) {
t_min = pArray->GetNumber(0);
t_max = pArray->GetNumber(1);
}
FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
pArray = pDict->GetArray("Extend");
if (pArray) {
bStartExtend = pArray->GetInteger(0);
bEndExtend = pArray->GetInteger(1);
}
int width = pBitmap->GetWidth();
int height = pBitmap->GetHeight();
FX_FLOAT x_span = end_x - start_x;
FX_FLOAT y_span = end_y - start_y;
FX_FLOAT axis_len_square =
FXSYS_Mul(x_span, x_span) + FXSYS_Mul(y_span, y_span);
CFX_Matrix matrix;
matrix.SetReverse(*pObject2Bitmap);
int total_results = 0;
for (int j = 0; j < nFuncs; j++) {
if (pFuncs[j]) {
total_results += pFuncs[j]->CountOutputs();
}
}
if (pCS->CountComponents() > total_results) {
total_results = pCS->CountComponents();
}
CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
FX_FLOAT* pResults = result_array;
FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
FX_DWORD rgb_array[SHADING_STEPS];
for (int i = 0; i < SHADING_STEPS; i++) {
FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
int offset = 0;
for (int j = 0; j < nFuncs; j++) {
if (pFuncs[j]) {
int nresults = 0;
if (pFuncs[j]->Call(&input, 1, pResults + offset, nresults)) {
offset += nresults;
}
}
}
FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
pCS->GetRGB(pResults, R, G, B);
rgb_array[i] =
FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255),
FXSYS_round(G * 255), FXSYS_round(B * 255)));
}
int pitch = pBitmap->GetPitch();
for (int row = 0; row < height; row++) {
FX_DWORD* dib_buf = (FX_DWORD*)(pBitmap->GetBuffer() + row * pitch);
for (int column = 0; column < width; column++) {
FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
matrix.Transform(x, y);
FX_FLOAT scale = FXSYS_Div(
FXSYS_Mul(x - start_x, x_span) + FXSYS_Mul(y - start_y, y_span),
axis_len_square);
int index = (int32_t)(scale * (SHADING_STEPS - 1));
if (index < 0) {
if (!bStartExtend) {
continue;
}
index = 0;
} else if (index >= SHADING_STEPS) {
if (!bEndExtend) {
continue;
}
index = SHADING_STEPS - 1;
}
dib_buf[column] = rgb_array[index];
}
}
}
开发者ID:primiano，项目名称:pdfium-merge，代码行数:91，代码来源:fpdf_render_pattern.cpp
示例20: FXSYS_round
bool CPDF_ImageRenderer::StartRenderDIBSource() {
if (!m_Loader.m_pBitmap)
return false;
m_BitmapAlpha =
FXSYS_round(255 * m_pImageObject->m_GeneralState.GetFillAlpha());
m_pDIBSource = m_Loader.m_pBitmap;
if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
!m_Loader.m_pMask) {
return StartBitmapAlpha();
}
if (m_pImageObject->m_GeneralState.GetTR()) {
if (!m_pImageObject->m_GeneralState.GetTransferFunc()) {
m_pImageObject->m_GeneralState.SetTransferFunc(
m_pRenderStatus->GetTransferFunc(
m_pImageObject->m_GeneralState.GetTR()));
}
if (m_pImageObject->m_GeneralState.GetTransferFunc() &&
!m_pImageObject->m_GeneralState.GetTransferFunc()->m_bIdentity) {
m_pDIBSource = m_Loader.m_pBitmap =
m_pImageObject->m_GeneralState.GetTransferFunc()->TranslateImage(
m_Loader.m_pBitmap, !m_Loader.m_bCached);
if (m_Loader.m_bCached && m_Loader.m_pMask)
m_Loader.m_pMask = m_Loader.m_pMask->Clone().release();
m_Loader.m_bCached = false;
}
}
m_FillArgb = 0;
m_bPatternColor = false;
m_pPattern = nullptr;
if (m_pDIBSource->IsAlphaMask()) {
const CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
if (pColor && pColor->IsPattern()) {
m_pPattern = pColor->GetPattern();
if (m_pPattern)
m_bPatternColor = true;
}
m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
} else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
m_pClone = m_pDIBSource->Clone();
m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
m_pRenderStatus->m_Options.m_ForeColor);
m_pDIBSource = m_pClone.get();
}
m_Flags = 0;
if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE)
m_Flags |= RENDER_FORCE_DOWNSAMPLE;
else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE)
m_Flags |= RENDER_FORCE_HALFTONE;
if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
CPDF_Object* pFilters =
m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectFor(
"Filter");
if (pFilters) {
if (pFilters->IsName()) {
CFX_ByteString bsDecodeType = pFilters->GetString();
if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode")
m_Flags |= FXRENDER_IMAGE_LOSSY;
} else if (CPDF_Array* pArray = pFilters->AsArray()) {
for (size_t i = 0; i < pArray->GetCount(); i++) {
CFX_ByteString bsDecodeType = pArray->GetStringAt(i);
if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode") {
m_Flags |= FXRENDER_IMAGE_LOSSY;
break;
}
}
}
}
}
if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH)
m_Flags |= FXDIB_NOSMOOTH;
else if (m_pImageObject->GetImage()->IsInterpol())
m_Flags |= FXDIB_INTERPOL;
if (m_Loader.m_pMask)
return DrawMaskedImage();
if (m_bPatternColor)
return DrawPatternImage(m_pObj2Device);
if (m_BitmapAlpha != 255 || !m_pImageObject->m_GeneralState ||
!m_pImageObject->m_GeneralState.GetFillOP() ||
m_pImageObject->m_GeneralState.GetOPMode() != 0 ||
m_pImageObject->m_GeneralState.GetBlendType() != FXDIB_BLEND_NORMAL ||
m_pImageObject->m_GeneralState.GetStrokeAlpha() != 1.0f ||
m_pImageObject->m_GeneralState.GetFillAlpha() != 1.0f) {
return StartDIBSource();
}
CPDF_Document* pDocument = nullptr;
CPDF_Page* pPage = nullptr;
if (m_pRenderStatus->m_pContext->GetPageCache()) {
pPage = m_pRenderStatus->m_pContext->GetPageCache()->GetPage();
pDocument = pPage->m_pDocument;
} else {
pDocument = m_pImageObject->GetImage()->GetDocument();
}
CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr;
CPDF_Object* pCSObj =
m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectFor(
"ColorSpace");
CPDF_ColorSpace* pColorSpace =
//.........这里部分代码省略.........
开发者ID:MIPS，项目名称:external-pdfium，代码行数:101，代码来源:cpdf_imagerenderer.cpp
注：本文中的FXSYS_round函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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