117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/*
|
|
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef _NETSURF_RISCOS_BITMAP_H_
|
|
#define _NETSURF_RISCOS_BITMAP_H_
|
|
|
|
struct osspriteop_area;
|
|
struct osspriteop_header;
|
|
struct hlcache_handle;
|
|
struct bitmap;
|
|
|
|
/** bitmap operations table */
|
|
struct gui_bitmap_table *riscos_bitmap_table;
|
|
|
|
/** save with full alpha channel (if not opaque) */
|
|
#define BITMAP_SAVE_FULL_ALPHA (1 << 0)
|
|
|
|
/**
|
|
* RISC OS wimp toolkit bitmap.
|
|
*/
|
|
struct bitmap {
|
|
int width; /**< width of bitmap */
|
|
int height; /**< height of bitmap */
|
|
|
|
unsigned int state; /**< The bitmap attributes (opaque/dirty etc.) */
|
|
|
|
struct osspriteop_area *sprite_area; /**< Uncompressed data, or NULL */
|
|
};
|
|
|
|
/**
|
|
* Convert bitmap to 8bpp sprite.
|
|
*
|
|
* \param bitmap the bitmap to convert.
|
|
* \return The converted sprite.
|
|
*/
|
|
struct osspriteop_area *riscos_bitmap_convert_8bpp(struct bitmap *bitmap);
|
|
|
|
/**
|
|
* Render content into bitmap.
|
|
*
|
|
* \param bitmap the bitmap to draw to
|
|
* \param content content structure to render
|
|
* \return true on success and bitmap updated else false
|
|
*/
|
|
nserror riscos_bitmap_render(struct bitmap *bitmap, struct hlcache_handle *content);
|
|
|
|
/**
|
|
* Overlay a sprite onto the given bitmap
|
|
*
|
|
* \param bitmap bitmap object
|
|
* \param s 8bpp sprite to be overlayed onto bitmap
|
|
*/
|
|
void riscos_bitmap_overlay_sprite(struct bitmap *bitmap, const struct osspriteop_header *s);
|
|
|
|
/**
|
|
* Create a bitmap.
|
|
*
|
|
* \param width width of image in pixels
|
|
* \param height width of image in pixels
|
|
* \param state the state to create the bitmap in.
|
|
* \return an opaque struct bitmap, or NULL on memory exhaustion
|
|
*/
|
|
void *riscos_bitmap_create(int width, int height, unsigned int state);
|
|
|
|
/**
|
|
* Free a bitmap.
|
|
*
|
|
* \param vbitmap a bitmap, as returned by bitmap_create()
|
|
*/
|
|
void riscos_bitmap_destroy(void *vbitmap);
|
|
|
|
/**
|
|
* Return a pointer to the pixel data in a bitmap.
|
|
*
|
|
* 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
|
|
* riscos_bitmap_get_rowstride().
|
|
*
|
|
* \param vbitmap A bitmap as returned by riscos_bitmap_create()
|
|
* \return pointer to the pixel buffer
|
|
*/
|
|
unsigned char *riscos_bitmap_get_buffer(void *vbitmap);
|
|
|
|
/**
|
|
* Gets whether a bitmap should be plotted opaque
|
|
*
|
|
* \param vbitmap A bitmap, as returned by riscos_bitmap_create()
|
|
*/
|
|
bool riscos_bitmap_get_opaque(void *vbitmap);
|
|
|
|
/**
|
|
* Save a bitmap in the platform's native format.
|
|
*
|
|
* \param vbitmap a bitmap, as returned by bitmap_create()
|
|
* \param path pathname for file
|
|
* \param flags modify the behaviour of the save
|
|
* \return true on success, false on error and error reported
|
|
*/
|
|
bool riscos_bitmap_save(void *vbitmap, const char *path, unsigned flags);
|
|
|
|
#endif
|