/*
* Copyright (c) 2019 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libgfx
* @{
*/
/**
* @file Bitmap
*/
#include <gfx/bitmap.h>
#include <mem.h>
#include <stdint.h>
#include <stdlib.h>
#include "../private/bitmap.h"
#include "../private/context.h"
/** Initialize bitmap parameters structure.
*
* Bitmap parameters structure must always be initialized using this function
* first.
*
* @param params Bitmap parameters structure
*/
void gfx_bitmap_params_init(gfx_bitmap_params_t *params)
{
memset(params, 0, sizeof(gfx_bitmap_params_t));
}
/** Allocate bitmap in a graphics context.
*
* @param gc Graphic context
* @param params Bitmap parameters
* @param alloc Bitmap allocation info or @c NULL to let GC allocate
* pixel storage
* @param rbitmap Place to store pointer to new bitmap
*
* @return EOK on success, EINVAL if parameters are invald,
* ENOMEM if insufficient resources, EIO if graphic device connection
* was lost
*/
errno_t gfx_bitmap_create(gfx_context_t *gc, gfx_bitmap_params_t *params,
gfx_bitmap_alloc_t *alloc, gfx_bitmap_t **rbitmap)
{
void *bm_priv;
gfx_bitmap_t *bitmap;
errno_t rc;
bitmap = calloc(1, sizeof(gfx_bitmap_t));
if (bitmap == NULL)
return ENOMEM;
rc = gc->ops->bitmap_create(gc->arg, params, alloc, &bm_priv);
if (rc != EOK) {
free(bitmap);
return rc;
}
bitmap->gc = gc;
bitmap->gc_priv = bm_priv;
*rbitmap = bitmap;
return EOK;
}
/** Destroy bitmap from graphics context.
*
* @param bitmap Bitmap
*
* @return EOK on success, EIO if graphic device connection was lost
*/
errno_t gfx_bitmap_destroy(gfx_bitmap_t *bitmap)
{
errno_t rc;
rc = bitmap->gc->ops->bitmap_destroy(bitmap->gc_priv);
if (rc != EOK)
return rc;
free(bitmap);
return EOK;
}
/** Render bitmap in graphics context.
*
* @param bitmap Bitmap
* @param srect Source rectangle or @c NULL to render entire bitmap
* @param offs Bitmap offset or @c NULL for zero offset
*
* @return EOK on success, EIO if graphic device connection was lost
*/
errno_t gfx_bitmap_render(gfx_bitmap_t *bitmap, gfx_rect_t *srect,
gfx_coord2_t *offs)
{
return bitmap->gc->ops->bitmap_render(bitmap->gc_priv, srect, offs);
}
/** Get bitmap allocation info.
*
* @param bitmap Bitmap
* @param alloc Allocation info structure to fill in
*
* @return EOK on success, EIO if graphic device connection was lost
*/
errno_t gfx_bitmap_get_alloc(gfx_bitmap_t *bitmap, gfx_bitmap_alloc_t *alloc)
{
return bitmap->gc->ops->bitmap_get_alloc(bitmap->gc_priv, alloc);
}
/** @}
*/