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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "sci/gfx/gfx_tools.h"
namespace Sci {
rect_t gfx_rect_fullscreen = {0, 0, 320, 200};
void gfx_clip_box_basic(rect_t *box, int maxx, int maxy) {
if (box->x < 0)
box->x = 0;
if (box->y < 0)
box->y = 0;
if (box->x + box->width > maxx)
box->width = maxx - box->x + 1;
if (box->y + box->height > maxy)
box->height = maxy - box->y + 1;
}
gfx_mode_t *gfx_new_mode(int scaleFactor, Palette *palette) {
gfx_mode_t *mode = (gfx_mode_t *)malloc(sizeof(gfx_mode_t));
mode->scaleFactor = scaleFactor;
mode->xsize = scaleFactor * 320;
mode->ysize = scaleFactor * 200;
mode->palette = palette;
return mode;
}
void gfx_free_mode(gfx_mode_t *mode) {
mode->palette->free();
free(mode);
mode = NULL;
}
void gfx_copy_pixmap_box_i(gfx_pixmap_t *dest, gfx_pixmap_t *src, rect_t box) {
int width, height;
int offset;
if ((dest->index_width != src->index_width) || (dest->index_height != src->index_height))
return;
gfx_clip_box_basic(&box, dest->index_width, dest->index_height);
if (box.width <= 0 || box.height <= 0)
return;
height = box.height;
width = box.width;
offset = box.x + (box.y * dest->index_width);
while (height--) {
memcpy(dest->index_data + offset, src->index_data + offset, width);
offset += dest->index_width;
}
}
gfx_pixmap_t *gfx_new_pixmap(int xl, int yl, int resid, int loop, int cel) {
gfx_pixmap_t *pxm = (gfx_pixmap_t *)malloc(sizeof(gfx_pixmap_t));
pxm->alpha_map = NULL;
pxm->data = NULL;
pxm->palette = NULL;
pxm->palette_revision = -1;
pxm->index_width = xl;
pxm->index_height = yl;
pxm->ID = resid;
pxm->loop = loop;
pxm->cel = cel;
pxm->index_data = NULL;
pxm->flags = 0;
pxm->color_key = 0xff;
return pxm;
}
void gfx_free_pixmap(gfx_pixmap_t *pxm) {
if (pxm->palette)
pxm->palette->free();
free(pxm->index_data);
free(pxm->alpha_map);
free(pxm->data);
free(pxm);
}
gfx_pixmap_t *gfx_pixmap_alloc_index_data(gfx_pixmap_t *pixmap) {
int size;
if (pixmap->index_data) {
warning("[GFX] Attempt to allocate pixmap index data twice");
return pixmap;
}
size = pixmap->index_width * pixmap->index_height;
if (!size)
size = 1;
pixmap->index_data = (byte*)malloc(size);
memset(pixmap->index_data, 0, size);
return pixmap;
}
gfx_pixmap_t *gfx_pixmap_alloc_data(gfx_pixmap_t *pixmap, gfx_mode_t *mode) {
int size;
if (pixmap->data) {
warning("[GFX] Attempt to allocate pixmap data twice");
return pixmap;
}
pixmap->width = pixmap->index_width;
pixmap->height = pixmap->index_height;
size = pixmap->width * pixmap->height;
if (!size)
size = 1;
pixmap->data = (byte*)malloc(pixmap->data_size = size);
return pixmap;
}
} // End of namespace Sci
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