netsurf/image/bmp.c

114 lines
2.9 KiB
C

/*
* This file is part of NetSurf, http://netsurf-browser.org/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2006 Richard Wilson <info@tinct.net>
*/
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include "netsurf/utils/config.h"
#include "netsurf/content/content.h"
#include "netsurf/desktop/plotters.h"
#include "netsurf/image/bitmap.h"
#include "netsurf/image/bmp.h"
#include "netsurf/image/bmpread.h"
#include "netsurf/utils/log.h"
#include "netsurf/utils/messages.h"
#include "netsurf/utils/utils.h"
#ifdef WITH_BMP
bool nsbmp_create(struct content *c, const char *params[]) {
union content_msg_data msg_data;
c->data.bmp.bmp = calloc(sizeof(struct bmp_image), 1);
if (!c->data.bmp.bmp) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
return true;
}
bool nsbmp_convert(struct content *c, int iwidth, int iheight) {
bmp_result res;
struct bmp_image *bmp;
union content_msg_data msg_data;
/* set our source data */
bmp = c->data.bmp.bmp;
bmp->bmp_data = c->source_data;
bmp->buffer_size = c->source_size;
/* analyse the BMP */
res = bmp_analyse(bmp);
switch (res) {
case BMP_OK:
break;
case BMP_INSUFFICIENT_MEMORY:
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
case BMP_INSUFFICIENT_DATA:
case BMP_DATA_ERROR:
msg_data.error = messages_get("BadBMP");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* Store our content width and description
*/
c->width = bmp->width;
c->height = bmp->height;
c->title = malloc(100);
if (c->title)
snprintf(c->title, 100, messages_get("BMPTitle"), c->width,
c->height, c->source_size);
c->size += (bmp->width * bmp->height * 4) + 16 + 44 + 100;
/* exit as a success */
c->bitmap = bmp->bitmap;
c->status = CONTENT_STATUS_DONE;
return true;
}
bool nsbmp_redraw(struct content *c, int x, int y,
int width, int height,
int clip_x0, int clip_y0, int clip_x1, int clip_y1,
float scale, unsigned long background_colour) {
if (!c->data.bmp.bmp->decoded)
bmp_decode(c->data.bmp.bmp);
c->bitmap = c->data.bmp.bmp->bitmap;
return plot.bitmap(x, y, width, height, c->bitmap, background_colour);
}
bool nsbmp_redraw_tiled(struct content *c, int x, int y,
int width, int height,
int clip_x0, int clip_y0, int clip_x1, int clip_y1,
float scale, unsigned long background_colour,
bool repeat_x, bool repeat_y) {
if (!c->data.bmp.bmp->decoded)
bmp_decode(c->data.bmp.bmp);
c->bitmap = c->data.bmp.bmp->bitmap;
return plot.bitmap_tile(x, y, width, height, c->bitmap,
background_colour, repeat_x, repeat_y);
}
void nsbmp_destroy(struct content *c)
{
bmp_finalise(c->data.bmp.bmp);
free(c->data.bmp.bmp);
free(c->title);
}
#endif