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Fixed so we do not create a separate pixel buffer when reading in image -

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1999-11-08  Michael Fulbright  <drmike@redhat.com>

	* src/io-pnm.c image_load (): Fixed so we do not create a separate
	pixel buffer when reading in image - we reuse the pixel data in
	the GdkPixbuf structure instead.
This commit is contained in:
Michael Fulbright 1999-11-08 19:02:58 +00:00 committed by Michael Fulbright
parent 6ef7f093d4
commit ce83490d75
2 changed files with 31 additions and 37 deletions
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6
gdk-pixbuf/ChangeLog
View File

@ -1,3 +1,9 @@
1999-11-08 Michael Fulbright <drmike@redhat.com>
* src/io-pnm.c image_load (): Fixed so we do not create a separate
pixel buffer when reading in image - we reuse the pixel data in
the GdkPixbuf structure instead.
1999-11-08 Michael Fulbright <drmike@redhat.com>
* src/io-pnm.c pnm_read_ascii_scanline (): Added support for

62
gdk-pixbuf/io-pnm.c
View File

@ -612,8 +612,8 @@ image_load (FILE *f)
/* ran out of data and we haven't exited main loop */
/* something is wrong */
if (inbuf->bytes_left == 0) {
if (context.pixels)
g_free (context.pixels);
if (context.pixbuf)
gdk_pixbuf_unref (context.pixbuf);
g_warning ("io-pnm.c: Ran out of data...\n");
return NULL;
}
@ -641,8 +641,20 @@ image_load (FILE *f)
context.pixels = g_malloc (context.height *
context.width * 3);
if (!context.pixels)
return NULL;
context.pixbuf = gdk_pixbuf_new(ART_PIX_RGB,
/*have_alpha*/ FALSE,
8,
context.width,
context.height);
if (context.pixbuf == NULL) {
/* Failed to allocate memory */
g_error ("Couldn't allocate gdkpixbuf");
}
context.pixels = context.pixbuf->art_pixbuf->pixels;
}
/* if we got here we're reading image data */
@ -652,8 +664,8 @@ image_load (FILE *f)
if (rc == PNM_SUSPEND) {
break;
} else if (rc == PNM_FATAL_ERR) {
if (context.pixels)
g_free (context.pixels);
if (context.pixbuf)
gdk_pixbuf_unref (context.pixbuf);
g_warning ("io-pnm.c: error reading rows..\n");
return NULL;
}
@ -717,8 +729,9 @@ skip_input_data (j_decompress_ptr cinfo, long num_bytes)
src->skip_next = num_bytes - num_can_do;
}
}
#endif
#if 0
/*
* func - called when we have pixmap created (but no image data)
* user_data - passed as arg 1 to func
@ -730,34 +743,18 @@ image_begin_load (ModulePreparedNotifyFunc prepared_func,
ModuleUpdatedNotifyFunc updated_func,
gpointer user_data)
{
JpegProgContext *context;
my_source_mgr *src;
PnmLoaderContext *context;
context = g_new0 (JpegProgContext, 1);
context->prepared_func = prepared_func;
context->updated_func = updated_func;
context->user_data = user_data;
context->pixbuf = NULL;
context->pixbuf = context->pixels = NULL;
context->got_header = FALSE;
context->did_prescan = FALSE;
context->src_initialized = FALSE;
/* create libjpeg structures */
jpeg_create_decompress (&context->cinfo);
context->cinfo.src = (struct jpeg_source_mgr *) g_new0 (my_source_mgr, 1);
src = (my_src_ptr) context->cinfo.src;
context->cinfo.err = jpeg_std_error (&context->jerr.pub);
src = (my_src_ptr) context->cinfo.src;
src->pub.init_source = init_source;
src->pub.fill_input_buffer = fill_input_buffer;
src->pub.skip_input_data = skip_input_data;
src->pub.resync_to_restart = jpeg_resync_to_restart;
src->pub.term_source = term_source;
src->pub.bytes_in_buffer = 0;
src->pub.next_input_byte = NULL;
context->inbuf.bytes_left = 0;
context->inbuf.next_byte = NULL;
return (gpointer) context;
}
@ -770,22 +767,13 @@ image_begin_load (ModulePreparedNotifyFunc prepared_func,
void
image_stop_load (gpointer data)
{
JpegProgContext *context = (JpegProgContext *) data;
PnmLoaderContext *context = (PnmLoaderContext *) data;
g_return_if_fail (context != NULL);
if (context->pixbuf)
gdk_pixbuf_unref (context->pixbuf);
jpeg_finish_decompress(&context->cinfo);
jpeg_destroy_decompress(&context->cinfo);
if (context->cinfo.src) {
my_src_ptr src = (my_src_ptr) context->cinfo.src;
g_free (src);
}
g_free (context);
}