Exemplos de HPDF_Image_LoadJpegImage em C++ (Cpp)

Exemplo n.º 1

Arquivo: hpdf_image.c Projeto: AKKF/libharu

HPDF_Image
HPDF_Image_LoadJpegImageFromMem  (HPDF_MMgr    mmgr,
                            const HPDF_BYTE   *buf,
                                  HPDF_UINT    size,
                                  HPDF_Xref    xref)
{
	HPDF_Stream jpeg_data;
	HPDF_Image image;

	HPDF_PTRACE ((" HPDF_Image_LoadJpegImageFromMem\n"));

	jpeg_data = HPDF_MemStream_New(mmgr,size);
	if (!HPDF_Stream_Validate (jpeg_data)) {
		HPDF_RaiseError (mmgr->error, HPDF_INVALID_STREAM, 0);
		return NULL;
	}

	if (HPDF_Stream_Write (jpeg_data, buf, size) != HPDF_OK) {
		HPDF_Stream_Free (jpeg_data);
		return NULL;
	}

	image = HPDF_Image_LoadJpegImage(mmgr,jpeg_data,xref);

	/* destroy file stream */
	HPDF_Stream_Free (jpeg_data);

	return image;
}

Exemplo n.º 2

Arquivo: hpdf_doc.c Projeto: GaryShearer/BasicOCR

HPDF_LoadJpegImageFromFile  (HPDF_Doc     pdf,
                             const char  *filename)
{
    HPDF_Stream imagedata;
    HPDF_Image image;

    HPDF_PTRACE ((" HPDF_LoadJpegImageFromFile\n"));

    if (!HPDF_HasDoc (pdf))
        return NULL;

    /* create file stream */
    imagedata = HPDF_FileReader_New (pdf->mmgr, filename);

    if (HPDF_Stream_Validate (imagedata))
        image = HPDF_Image_LoadJpegImage (pdf->mmgr, imagedata, pdf->xref);
    else
        image = NULL;

    /* destroy file stream */
    HPDF_Stream_Free (imagedata);

    if (!image)
        HPDF_CheckError (&pdf->error);

    return image;
}