2004-12-25 14:37:35 +03:00
|
|
|
/*
|
|
|
|
* This file is part of NetSurf, http://netsurf.sourceforge.net/
|
|
|
|
* Licensed under the GNU General Public License,
|
|
|
|
* http://www.opensource.org/licenses/gpl-license
|
|
|
|
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
|
|
|
|
*/
|
|
|
|
|
|
|
|
/** \file
|
|
|
|
* Generic bitmap handling (GDK / GTK+ implementation).
|
|
|
|
*
|
|
|
|
* This implements the interface given by desktop/bitmap.h using GdkPixbufs.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <assert.h>
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <gdk/gdk.h>
|
|
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
|
|
#include "netsurf/content/content.h"
|
2005-12-20 01:50:23 +03:00
|
|
|
#include "netsurf/gtk/gtk_window.h"
|
2004-12-25 14:37:35 +03:00
|
|
|
#include "netsurf/image/bitmap.h"
|
|
|
|
|
|
|
|
|
|
|
|
struct bitmap;
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Create a bitmap.
|
|
|
|
*
|
|
|
|
* \param width width of image in pixels
|
|
|
|
* \param height width of image in pixels
|
2006-02-22 04:58:19 +03:00
|
|
|
* \param state a flag word indicating the initial state
|
2004-12-25 14:37:35 +03:00
|
|
|
* \return an opaque struct bitmap, or NULL on memory exhaustion
|
|
|
|
*/
|
|
|
|
|
2006-02-22 04:58:19 +03:00
|
|
|
struct bitmap *bitmap_create(int width, int height, unsigned int state)
|
2004-12-25 14:37:35 +03:00
|
|
|
{
|
|
|
|
GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8,
|
|
|
|
width, height);
|
|
|
|
return (struct bitmap *) pixbuf;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets whether a bitmap should be plotted opaque
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \param opaque whether the bitmap should be plotted opaque
|
|
|
|
*/
|
|
|
|
void bitmap_set_opaque(struct bitmap *bitmap, bool opaque)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
/* todo: set bitmap as opaque */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Tests whether a bitmap has an opaque alpha channel
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \return whether the bitmap is opaque
|
|
|
|
*/
|
|
|
|
bool bitmap_test_opaque(struct bitmap *bitmap)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
/* todo: test if bitmap as opaque */
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Gets whether a bitmap should be plotted opaque
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
*/
|
|
|
|
bool bitmap_get_opaque(struct bitmap *bitmap)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
/* todo: get whether bitmap is opaque */
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return a pointer to the pixel data in a bitmap.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \return pointer to the pixel buffer
|
|
|
|
*
|
|
|
|
* The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
|
|
|
|
* of rows. The width of a row in bytes is given by bitmap_get_rowstride().
|
|
|
|
*/
|
|
|
|
|
|
|
|
char *bitmap_get_buffer(struct bitmap *bitmap)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
return gdk_pixbuf_get_pixels((GdkPixbuf *) bitmap);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Find the width of a pixel row in bytes.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \return width of a pixel row in the bitmap
|
|
|
|
*/
|
|
|
|
|
|
|
|
size_t bitmap_get_rowstride(struct bitmap *bitmap)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
return gdk_pixbuf_get_rowstride((GdkPixbuf *) bitmap);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Free a bitmap.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
*/
|
|
|
|
|
|
|
|
void bitmap_destroy(struct bitmap *bitmap)
|
|
|
|
{
|
|
|
|
assert(bitmap);
|
|
|
|
g_object_unref((GdkPixbuf *) bitmap);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Save a bitmap in the platform's native format.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \param path pathname for file
|
|
|
|
* \return true on success, false on error and error reported
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool bitmap_save(struct bitmap *bitmap, const char *path)
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
2005-06-23 21:22:28 +04:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* The bitmap image has changed, so flush any persistant cache.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
*/
|
|
|
|
void bitmap_modified(struct bitmap *bitmap) {
|
|
|
|
}
|
2006-02-22 04:58:19 +03:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* The bitmap image can be suspended.
|
|
|
|
*
|
|
|
|
* \param bitmap a bitmap, as returned by bitmap_create()
|
|
|
|
* \param private_word a private word to be returned later
|
|
|
|
* \param suspend the function to be called upon suspension
|
|
|
|
* \param resume the function to be called when resuming
|
|
|
|
*/
|
|
|
|
void bitmap_set_suspendable(struct bitmap *bitmap, void *private_word,
|
|
|
|
void (*invalidate)(struct bitmap *bitmap, void *private_word)) {
|
|
|
|
}
|