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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.
*
*/
#include "bladerunner/shape.h"
#include "bladerunner/bladerunner.h"
#include "common/debug.h"
#include "common/ptr.h"
#include "common/util.h"
#include "graphics/surface.h"
namespace BladeRunner {
Shape::Shape(BladeRunnerEngine *vm) {
_vm = vm;
_data = nullptr;
_width = 0;
_height = 0;
}
Shape::~Shape() {
delete[] _data;
}
bool Shape::open(const Common::String &container, int index) {
Common::ScopedPtr<Common::SeekableReadStream> stream(_vm->getResourceStream(container));
if (!stream) {
warning("Shape::open failed to open '%s'", container.c_str());
return false;
}
uint32 count = stream->readUint32LE();
if (index < 0 || (uint32)index >= count) {
warning("Shape::open invalid index %d (count %u)", index, count);
return false;
}
uint32 size = 0, width = 0, height = 0;
for (int i = 0; i <= index; ++i) {
width = stream->readUint32LE();
height = stream->readUint32LE();
size = stream->readUint32LE();
if (size != width * height * 2) {
warning("Shape::open size mismatch (w %d, h %d, sz %d)", width, height, size);
return false;
}
if (i != index) {
stream->skip(size);
}
}
// Enfoce a reasonable size limit
if (width >= 2048 || height >= 2048) {
warning("Shape::open shape too big (%d, %d)", width, height);
}
_width = width;
_height = height;
_data = new byte[size];
if (stream->read(_data, size) != size) {
warning("Shape::open error reading shape %d (w %d, h %d, sz %d)", index, width, height, size);
return false;
}
return true;
}
void Shape::draw(Graphics::Surface &surface, int x, int y) const {
int src_x = CLIP(-x, 0, _width);
int src_y = CLIP(-y, 0, _height);
int dst_x = CLIP<int>(x, 0, surface.w);
int dst_y = CLIP<int>(y, 0, surface.h);
int rect_w = MIN(CLIP(_width + x, 0, _width), surface.w - x);
int rect_h = MIN(CLIP(_height + y, 0, _height), surface.h - y);
if (rect_w == 0 || rect_h == 0) {
return;
}
byte *src_p = _data + 2 * (src_y * _width + src_x);
byte *dst_p = (byte *)surface.getBasePtr(dst_x, dst_y);
for (int yi = 0; yi != rect_h; ++yi) {
for (int xi = 0; xi != rect_w; ++xi) {
uint16 color = READ_LE_UINT16(src_p);
if ((color & 0x8000) == 0) {
*(uint16 *)dst_p = color;
}
src_p += 2;
dst_p += 2;
}
src_p += 2 * (_width - rect_w);
dst_p += surface.pitch - 2 * rect_w;
}
}
} // End of namespace BladeRunner
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