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revise cgif save loop

This commit is contained in:
John Cupitt 2022-09-07 12:10:20 +01:00
parent 91986a9778
commit 3191e5cea5
1 changed files with 3 additions and 3 deletions
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6
libvips/foreign/cgifsave.c
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@ -106,7 +106,7 @@ typedef struct _VipsForeignSaveCgif {
VipsRegion *frame; VipsRegion *frame;
int write_y; int write_y;
/* VipsRegion is not always contiguious, but we need contiguious RGBA /* VipsRegion is not always contiguous, but we need contiguous RGBA
* forthe quantizer. We need to copy each frame to a local buffer. * forthe quantizer. We need to copy each frame to a local buffer.
*/ */
VipsPel *frame_bytes; VipsPel *frame_bytes;
@ -448,7 +448,7 @@ vips_foreign_save_cgif_write_frame( VipsForeignSaveCgif *cgif )
printf( "vips_foreign_save_cgif_write_frame: %d\n", page_index ); printf( "vips_foreign_save_cgif_write_frame: %d\n", page_index );
#endif/*DEBUG_VERBOSE*/ #endif/*DEBUG_VERBOSE*/
/* We need the frame as a contiguious RGBA buffer for the quantiser. /* We need the frame as a contiguous RGBA buffer for the quantiser.
*/ */
for( y = 0; y < frame_rect->height; y++ ) for( y = 0; y < frame_rect->height; y++ )
memcpy( cgif->frame_bytes + y * 4 * frame_rect->width, memcpy( cgif->frame_bytes + y * 4 * frame_rect->width,
@ -747,7 +747,7 @@ vips_foreign_save_cgif_build( VipsObject *object )
*/ */
vips__region_no_ownership( cgif->frame ); vips__region_no_ownership( cgif->frame );
/* This RGBA frame as a contiguious buffer. /* This RGBA frame as a contiguous buffer.
*/ */
cgif->frame_bytes = g_malloc0( (size_t) 4 * cgif->frame_bytes = g_malloc0( (size_t) 4 *
frame_rect.width * frame_rect.height ); frame_rect.width * frame_rect.height );