bitmap.c

Go to the documentation of this file.

/*
 * Copyright 2011 Daniel Silverstone <dsilvers@digital-scurf.org>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * NetSurf is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
 
#include "utils/errors.h"
#include "netsurf/bitmap.h"
 
#include "monkey/output.h"
#include "monkey/bitmap.h"
 
struct bitmap {
        void *ptr;
        size_t rowstride;
        int width;
        int height;
        bool opaque;
};
 
static void *bitmap_create(int width, int height, enum gui_bitmap_flags flags)
{
        struct bitmap *ret = calloc(1, sizeof(*ret));
        if (ret == NULL)
                return NULL;
 
        ret->width = width;
        ret->height = height;
        ret->opaque = (flags & BITMAP_OPAQUE) == BITMAP_OPAQUE;
 
        ret->ptr = calloc(width, height * 4);
 
        if (ret->ptr == NULL) {
                free(ret);
                return NULL;
        }
 
        return ret;
}
 
static void bitmap_destroy(void *bitmap)
{
        struct bitmap *bmap = bitmap;
        free(bmap->ptr);
        free(bmap);
}
 
static void bitmap_set_opaque(void *bitmap, bool opaque)
{
        struct bitmap *bmap = bitmap;
 
        bmap->opaque = opaque;
}
 
static bool bitmap_get_opaque(void *bitmap)
{
        struct bitmap *bmap = bitmap;
 
        return bmap->opaque;
}
 
static unsigned char *bitmap_get_buffer(void *bitmap)
{
        struct bitmap *bmap = bitmap;
  
        return (unsigned char *)(bmap->ptr);
}
 
static size_t bitmap_get_rowstride(void *bitmap)
{
        struct bitmap *bmap = bitmap;
        return bmap->width * 4;
}
 
static void bitmap_modified(void *bitmap)
{
        return;
}
 
static int bitmap_get_width(void *bitmap)
{
        struct bitmap *bmap = bitmap;
        return bmap->width;
}
 
static int bitmap_get_height(void *bitmap)
{
        struct bitmap *bmap = bitmap;
        return bmap->height;
}
 
static nserror bitmap_render(struct bitmap *bitmap,
                             struct hlcache_handle *content)
{
        moutf(MOUT_GENERIC, "BITMAP RENDER");
        return NSERROR_OK;
}
 
static struct gui_bitmap_table bitmap_table = {
        .create = bitmap_create,
        .destroy = bitmap_destroy,
        .set_opaque = bitmap_set_opaque,
        .get_opaque = bitmap_get_opaque,
        .get_buffer = bitmap_get_buffer,
        .get_rowstride = bitmap_get_rowstride,
        .get_width = bitmap_get_width,
        .get_height = bitmap_get_height,
        .modified = bitmap_modified,
        .render = bitmap_render,
};
 
struct gui_bitmap_table *monkey_bitmap_table = &bitmap_table;