mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-24 15:29:45 +03:00
e4fba7f577
svn path=/trunk/netsurf/; revision=5532
176 lines
4.7 KiB
C
176 lines
4.7 KiB
C
/*
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* Copyright 2006 Richard Wilson <info@tinct.net>
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* Copyright 2008 Sean Fox <dyntryx@gmail.com>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Content for image/bmp (implementation)
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*/
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#include "utils/config.h"
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#ifdef WITH_BMP
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#include <assert.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <libnsbmp.h>
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#include "utils/config.h"
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#include "content/content.h"
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#include "desktop/plotters.h"
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#include "image/bitmap.h"
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#include "image/bmp.h"
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#include "utils/log.h"
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#include "utils/messages.h"
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#include "utils/utils.h"
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/* The Bitmap callbacks function table;
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* necessary for interaction with nsbmplib.
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*/
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bmp_bitmap_callback_vt bmp_bitmap_callbacks = {
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.bitmap_create = nsbmp_bitmap_create,
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.bitmap_destroy = bitmap_destroy,
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.bitmap_set_suspendable = bitmap_set_suspendable,
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.bitmap_get_buffer = bitmap_get_buffer,
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.bitmap_get_bpp = bitmap_get_bpp
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};
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bool nsbmp_create(struct content *c, const char *params[])
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{
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union content_msg_data msg_data;
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c->data.bmp.bmp = calloc(sizeof(struct bmp_image), 1);
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if (!c->data.bmp.bmp) {
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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bmp_create(c->data.bmp.bmp, &bmp_bitmap_callbacks);
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return true;
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}
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bool nsbmp_convert(struct content *c, int iwidth, int iheight)
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{
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bmp_result res;
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bmp_image *bmp;
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union content_msg_data msg_data;
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uint32_t swidth;
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/* set the bmp data */
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bmp = c->data.bmp.bmp;
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/* analyse the BMP */
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res = bmp_analyse(bmp, c->source_size, (unsigned char *)c->source_data);
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switch (res) {
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case BMP_OK:
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break;
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case BMP_INSUFFICIENT_MEMORY:
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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case BMP_INSUFFICIENT_DATA:
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case BMP_DATA_ERROR:
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msg_data.error = messages_get("BadBMP");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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/* Store our content width and description */
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c->width = bmp->width;
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c->height = bmp->height;
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LOG(("BMP width %u height %u\n\n", c->width, c->height));
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c->title = malloc(100);
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if (c->title)
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snprintf(c->title, 100, messages_get("BMPTitle"), c->width,
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c->height, c->source_size);
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swidth = bmp->bitmap_callbacks.bitmap_get_bpp(bmp->bitmap) * bmp->width;
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c->size += (swidth * bmp->height) + 16 + 44 + 100;
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/* exit as a success */
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c->bitmap = bmp->bitmap;
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bitmap_modified(c->bitmap);
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c->status = CONTENT_STATUS_DONE;
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/* Done: update status bar */
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content_set_status(c, "");
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return true;
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}
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bool nsbmp_redraw(struct content *c, int x, int y,
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int width, int height,
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int clip_x0, int clip_y0, int clip_x1, int clip_y1,
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float scale, colour background_colour)
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{
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if (!c->data.bmp.bmp->decoded)
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if (bmp_decode(c->data.bmp.bmp) != BMP_OK)
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return false;
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c->bitmap = c->data.bmp.bmp->bitmap;
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return plot.bitmap(x, y, width, height, c->bitmap,
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background_colour, c);
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}
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bool nsbmp_redraw_tiled(struct content *c, int x, int y,
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int width, int height,
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int clip_x0, int clip_y0, int clip_x1, int clip_y1,
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float scale, colour background_colour,
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bool repeat_x, bool repeat_y)
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{
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if (!c->data.bmp.bmp->decoded)
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if (bmp_decode(c->data.bmp.bmp) != BMP_OK)
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return false;
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c->bitmap = c->data.bmp.bmp->bitmap;
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return plot.bitmap_tile(x, y, width, height, c->bitmap,
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background_colour, repeat_x, repeat_y, c);
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}
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void nsbmp_destroy(struct content *c)
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{
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bmp_finalise(c->data.bmp.bmp);
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free(c->data.bmp.bmp);
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free(c->title);
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}
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/**
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* Callback for libnsbmp; forwards the call to bitmap_create()
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*
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* \param width width of image in pixels
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* \param height width of image in pixels
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* \param state a flag word indicating the initial state
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* \return an opaque struct bitmap, or NULL on memory exhaustion
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*/
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void *nsbmp_bitmap_create(int width, int height, unsigned int bmp_state)
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{
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unsigned int bitmap_state = BITMAP_NEW;
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/* set bitmap state based on bmp state */
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bitmap_state |= (bmp_state & BMP_OPAQUE) ? BITMAP_OPAQUE : 0;
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bitmap_state |= (bmp_state & BMP_CLEAR_MEMORY) ?
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BITMAP_CLEAR_MEMORY : 0;
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/* return the created bitmap */
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return bitmap_create(width, height, bitmap_state);
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}
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#endif
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