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Michael R Sweet
2021-04-27 21:22:34 -04:00
parent 11588ce2f5
commit e2e2192ea9
10 changed files with 672 additions and 113 deletions
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69
pdfio-common.c
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@@ -65,6 +65,26 @@ _pdfioFileError(pdfio_file_t *pdf, // I - PDF file
}
//
// '_pdfioFileFlush()' - Flush any pending write data.
//
bool // O - `true` on success, `false` on failure
_pdfioFileFlush(pdfio_file_t *pdf) // I - PDF file
{
if (pdf->bufptr > pdf->buffer)
{
if (!write_buffer(pdf, pdf->buffer, (size_t)(pdf->bufptr - pdf->buffer)))
return (false);
pdf->bufpos += pdf->bufptr - pdf->buffer;
pdf->bufptr = pdf->buffer;
}
return (true);
}
//
// '_pdfioFileGetChar()' - Get a character from a PDF file.
//
@@ -85,6 +105,42 @@ _pdfioFileGetChar(pdfio_file_t *pdf) // I - PDF file
}
//
// '_pdfioFilePrintf()' - Write a formatted string to a PDF file.
//
bool // O - `true` on success, `false` on failure
_pdfioFilePrintf(pdfio_file_t *pdf, // I - PDF file
const char *format, // I - `printf`-style format string
...) // I - Additional arguments as needed
{
char buffer[8102]; // String buffer
va_list ap; // Argument list
// Format the string...
va_start(ap, format);
vsnprintf(buffer, sizeof(buffer), format, ap);
va_end(ap);
// Write it...
return (_pdfioFileWrite(pdf, buffer, strlen(buffer)));
}
//
// '_pdfioFilePuts()' - Write a literal string to a PDF file.
//
bool // O - `true` on success, `false` on failure
_pdfioFilePuts(pdfio_file_t *pdf, // I - PDF file
const char *s) // I - Literal string
{
// Write it...
return (_pdfioFileWrite(pdf, s, strlen(s)));
}
//
// '_pdfioFileRead()' - Read from a PDF file.
//
@@ -152,7 +208,7 @@ _pdfioFileSeek(pdfio_file_t *pdf, // I - PDF file
whence = SEEK_SET;
}
if (pdf->mode == PDFIO_MODE_READ)
if (pdf->mode == _PDFIO_MODE_READ)
{
// Reading, see if we already have the data we need...
if (whence != SEEK_END && offset >= pdf->bufpos && offset < (pdf->bufpos + pdf->bufend - pdf->buffer))
@@ -217,15 +273,8 @@ _pdfioFileWrite(pdfio_file_t *pdf, // I - PDF file
if (bytes > (size_t)(pdf->bufend - pdf->bufptr))
{
// No room, flush any current data...
if (pdf->bufptr > pdf->buffer)
{
if (!write_buffer(pdf, pdf->buffer, (size_t)(pdf->bufptr - pdf->buffer)))
return (false);
pdf->bufpos += pdf->bufptr - pdf->buffer;
}
pdf->bufptr = pdf->buffer;
if (!_pdfioFileFlush(pdf))
return (false);
if (bytes >= sizeof(pdf->buffer))
{