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[image] Add image_pixbuf() to create pixel buffer from image 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/17/head
Michael Brown 2013-11-27 01:13:18 +00:00
parent 2c161283d5
commit 09f31e9fc4
2 changed files with 40 additions and 3 deletions
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26
src/core/image.c
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@ -456,3 +456,29 @@ int image_set_trust ( int require_trusted, int permanent ) {
return 0; return 0;
} }
/**
* Create pixel buffer from image
*
* @v image Image
* @v pixbuf Pixel buffer to fill in
* @ret rc Return status code
*/
int image_pixbuf ( struct image *image, struct pixel_buffer **pixbuf ) {
int rc;
/* Check that this image can be used to create a pixel buffer */
if ( ( rc = image_probe ( image ) ) != 0 )
return rc;
if ( ! image->type->pixbuf )
return -ENOTSUP;
/* Try creating pixel buffer */
if ( ( rc = image->type->pixbuf ( image, pixbuf ) ) != 0 ) {
DBGC ( image, "IMAGE %s could not create pixel buffer: %s\n",
image->name, strerror ( rc ) );
return rc;
}
return 0;
}

17
src/include/ipxe/image.h
View File

@ -16,6 +16,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/refcnt.h> #include <ipxe/refcnt.h>
struct uri; struct uri;
struct pixel_buffer;
struct image_type; struct image_type;
/** An executable image */ /** An executable image */
@ -74,9 +75,10 @@ struct image {
struct image_type { struct image_type {
/** Name of this image type */ /** Name of this image type */
char *name; char *name;
/** Probe image /**
* Probe image
* *
* @v image Executable image * @v image Image
* @ret rc Return status code * @ret rc Return status code
* *
* Return success if the image is of this image type. * Return success if the image is of this image type.
@ -85,10 +87,18 @@ struct image_type {
/** /**
* Execute image * Execute image
* *
* @v image Executable image * @v image Image
* @ret rc Return status code * @ret rc Return status code
*/ */
int ( * exec ) ( struct image *image ); int ( * exec ) ( struct image *image );
/**
* Create pixel buffer from image
*
* @v image Image
* @v pixbuf Pixel buffer to fill in
* @ret rc Return status code
*/
int ( * pixbuf ) ( struct image *image, struct pixel_buffer **pixbuf );
}; };
/** /**
@ -159,6 +169,7 @@ extern int image_replace ( struct image *replacement );
extern int image_select ( struct image *image ); extern int image_select ( struct image *image );
extern struct image * image_find_selected ( void ); extern struct image * image_find_selected ( void );
extern int image_set_trust ( int require_trusted, int permanent ); extern int image_set_trust ( int require_trusted, int permanent );
extern int image_pixbuf ( struct image *image, struct pixel_buffer **pixbuf );
/** /**
* Increment reference count on an image * Increment reference count on an image