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use vips__bgra2rgba() in pdfiumload

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slightly quicker, works with any byte order
This commit is contained in:
John Cupitt 2022-05-21 10:32:23 +01:00
parent 83bf777325
commit bf614530cd
1 changed files with 13 additions and 9 deletions
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22
libvips/foreign/pdfiumload.c
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@ -14,6 +14,8 @@
* - add _source input
* 28/1/22
* - add password
* 21/5/22
* - improve transparency handling [DarthSim]
*/
/*
@ -152,9 +154,9 @@ typedef struct _VipsForeignLoadPdf {
VipsRect image;
VipsRect *pages;
/* The [double] background converted to the PDFium format.
/* The [double] background converted to image format.
*/
FPDF_DWORD ink;
VipsPel *ink;
} VipsForeignLoadPdf;
@ -438,7 +440,6 @@ vips_foreign_load_pdf_header( VipsForeignLoad *load )
int top;
int i;
VipsPel *ink;
#ifdef DEBUG
printf( "vips_foreign_load_pdf_header: %p\n", pdf );
@ -520,13 +521,12 @@ vips_foreign_load_pdf_header( VipsForeignLoad *load )
/* Convert the background to the image format.
*/
if( !(ink = vips__vector_to_ink( class->nickname,
if( !(pdf->ink = vips__vector_to_ink( class->nickname,
load->out,
VIPS_AREA( pdf->background )->data, NULL,
VIPS_AREA( pdf->background )->n )) )
return( -1 );
pdf->ink = (ink[3] << 24) + (ink[0] << 16) + (ink[1] << 8) + ink[2];
vips__bgra2rgba( (guint32 *) pdf->ink, 1 );
return( 0 );
}
@ -580,10 +580,14 @@ vips_foreign_load_pdf_generate( VipsRegion *or,
VIPS_REGION_ADDR( or, rect.left, rect.top ),
VIPS_REGION_LSKIP( or ) );
/* PDFium won't always paint the background.
/* Only paint the background if there's no transparency.
*/
if ( !FPDFPage_HasTransparency(pdf->page) )
FPDFBitmap_FillRect(bitmap, 0, 0, rect.width, rect.height, pdf->ink);
if ( !FPDFPage_HasTransparency( pdf->page ) ) {
FPDF_DWORD ink = *((guint32 *) pdf->ink);
FPDFBitmap_FillRect( bitmap,
0, 0, rect.width, rect.height, ink );
}
FPDF_RenderPageBitmap( bitmap, pdf->page,
0, 0, rect.width, rect.height,