bool RenderDocument(BaseEngine *engine, const WCHAR *renderPath, float zoom=1.f, bool silent=false)
{
if (!CheckRenderPath(renderPath))
return false;
if (str::EndsWithI(renderPath, L".txt")) {
str::Str<WCHAR> text(1024);
for (int pageNo = 1; pageNo <= engine->PageCount(); pageNo++)
text.AppendAndFree(engine->ExtractPageText(pageNo, L"\r\n", NULL, Target_Export));
if (silent)
return true;
ScopedMem<WCHAR> txtFilePath(str::Format(renderPath, 0));
ScopedMem<char> textUTF8(str::conv::ToUtf8(text.Get()));
ScopedMem<char> textUTF8BOM(str::Join(UTF8_BOM, textUTF8));
return file::WriteAll(txtFilePath, textUTF8BOM, str::Len(textUTF8BOM));
}
if (str::EndsWithI(renderPath, L".pdf")) {
if (silent)
return false;
ScopedMem<WCHAR> pdfFilePath(str::Format(renderPath, 0));
return engine->SaveFileAsPDF(pdfFilePath, true) || PdfCreator::RenderToFile(pdfFilePath, engine);
}
bool success = true;
for (int pageNo = 1; pageNo <= engine->PageCount(); pageNo++) {
RenderedBitmap *bmp = engine->RenderBitmap(pageNo, zoom, 0);
success &= bmp != NULL;
if (!bmp && !silent)
ErrOut("Error: Failed to render page %d for %s!", pageNo, engine->FileName());
if (!bmp || silent) {
delete bmp;
continue;
}
ScopedMem<WCHAR> pageBmpPath(str::Format(renderPath, pageNo));
if (str::EndsWithI(pageBmpPath, L".png")) {
Bitmap gbmp(bmp->GetBitmap(), NULL);
CLSID pngEncId = GetEncoderClsid(L"image/png");
gbmp.Save(pageBmpPath, &pngEncId);
}
else if (str::EndsWithI(pageBmpPath, L".bmp")) {
size_t bmpDataLen;
ScopedMem<char> bmpData((char *)SerializeBitmap(bmp->GetBitmap(), &bmpDataLen));
if (bmpData)
file::WriteAll(pageBmpPath, bmpData, bmpDataLen);
}
else { // render as TGA for all other file extensions
size_t tgaDataLen;
ScopedMem<unsigned char> tgaData(tga::SerializeBitmap(bmp->GetBitmap(), &tgaDataLen));
if (tgaData)
file::WriteAll(pageBmpPath, tgaData, tgaDataLen);
}
delete bmp;
}
return success;
}
static void bg_update_proc(Layer *layer, GContext *ctx) {
if(!is_encoding) {
is_encoding = true;
GBitmap *fb = graphics_capture_frame_buffer(ctx);
APP_LOG(APP_LOG_LEVEL_DEBUG, "Captured framebuffer");
bmpData(fb);
APP_LOG(APP_LOG_LEVEL_DEBUG, "Converted bitmap");
png_encode((const unsigned char*)imagedata);
APP_LOG(APP_LOG_LEVEL_DEBUG, "Encoded PNG");
graphics_release_frame_buffer(ctx, fb);
APP_LOG(APP_LOG_LEVEL_DEBUG, "Released framebuffer");
//is_encoding = false;
}
}
void UpdateBitmapColors(HBITMAP hbmp, COLORREF textColor, COLORREF bgColor)
{
if ((textColor & 0xFFFFFF) == WIN_COL_BLACK &&
(bgColor & 0xFFFFFF) == WIN_COL_WHITE)
return;
// color order in DIB is blue-green-red-alpha
int base[4] = { GetBValueSafe(textColor), GetGValueSafe(textColor), GetRValueSafe(textColor), 0 };
int diff[4] = {
GetBValueSafe(bgColor) - base[0],
GetGValueSafe(bgColor) - base[1],
GetRValueSafe(bgColor) - base[2],
255
};
HDC hDC = GetDC(NULL);
BITMAPINFO bmi = { 0 };
SizeI size = GetBitmapSize(hbmp);
bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
bmi.bmiHeader.biWidth = size.dx;
bmi.bmiHeader.biHeight = size.dy;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
int bmpBytes = size.dx * size.dy * 4;
ScopedMem<unsigned char> bmpData((unsigned char *)malloc(bmpBytes));
CrashIf(!bmpData);
if (GetDIBits(hDC, hbmp, 0, size.dy, bmpData, &bmi, DIB_RGB_COLORS)) {
for (int i = 0; i < bmpBytes; i++) {
int k = i % 4;
bmpData[i] = (uint8_t)(base[k] + mul255(bmpData[i], diff[k]));
}
SetDIBits(hDC, hbmp, 0, size.dy, bmpData, &bmi, DIB_RGB_COLORS);
}
ReleaseDC(NULL, hDC);
}