bool bitmap_resize(struct bitmap *img, HermesHandle hermes_h,
HermesFormat *fmt, int nw, int nh)
{
unsigned int state = 0;
short bpp = bitmap_get_bpp( img );
int stride = bitmap_get_rowstride( img );
int err;
if( img->resized != NULL ) {
if( img->resized->width != nw || img->resized->height != nh ) {
bitmap_destroy( img->resized );
img->resized = NULL;
} else {
/* the bitmap is already resized */
return(true);
}
}
/* allocate the mem for resized bitmap */
if (img->opaque == true) {
state |= BITMAP_OPAQUE;
}
img->resized = bitmap_create_ex( nw, nh, bpp, nw*bpp, state, NULL );
if( img->resized == NULL ) {
printf("W: %d, H: %d, bpp: %d\n", nw, nh, bpp);
assert(img->resized);
return(false);
}
/* allocate an converter, only for resizing */
err = Hermes_ConverterRequest( hermes_h,
fmt,
fmt
);
if( err == 0 ) {
return(false);
}
err = Hermes_ConverterCopy( hermes_h,
img->pixdata,
0, /* x src coord of top left in pixel coords */
0, /* y src coord of top left in pixel coords */
bitmap_get_width( img ), bitmap_get_height( img ),
stride, /* stride as bytes */
img->resized->pixdata,
0, /* x dst coord of top left in pixel coords */
0, /* y dst coord of top left in pixel coords */
nw, nh,
bitmap_get_rowstride(img->resized) /* stride as bytes */
);
if( err == 0 ) {
bitmap_destroy( img->resized );
img->resized = NULL;
return(false);
}
return(true);
}
static void
gst_hermes_colorspace_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstHermesColorspace *space;
GstBuffer *outbuf = NULL;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
space = GST_HERMES_COLORSPACE (gst_pad_get_parent (pad));
g_return_if_fail (space != NULL);
g_return_if_fail (GST_IS_COLORSPACE (space));
if (space->passthru) {
gst_pad_push (space->srcpad, _data);
return;
}
if (GST_BUFFER_SIZE (buf) < space->sink_size) {
g_critical ("input size is smaller than expected");
}
outbuf =
gst_pad_alloc_buffer_and_set_caps (space->srcpad, GST_BUFFER_OFFSET_NONE,
space->src_size);
Hermes_ConverterCopy (space->h_handle,
GST_BUFFER_DATA (buf), 0, 0, space->width, space->height,
space->sink_stride, GST_BUFFER_DATA (outbuf), 0, 0,
space->width, space->height, space->src_stride);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
gst_buffer_unref (buf);
gst_pad_push (space->srcpad, GST_DATA (outbuf));
}
