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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/shared/gfx/sprites.h"
#include "ultima/shared/core/file.h"
namespace Ultima {
namespace Shared {
namespace Gfx {
Sprite::Sprite() {
}
Sprite::Sprite(const Sprite &src) {
_surface.copyFrom(src._surface);
_transSurface.copyFrom(src._transSurface);
}
Sprite::Sprite(const byte *src, uint bpp, uint16 w, uint16 h) {
_surface.create(w, h, Graphics::PixelFormat::createFormatCLUT8());
assert((w % bpp) == 0);
byte v = 0;
for (int y = 0; y < h; ++y) {
byte *destP = (byte *)_surface.getBasePtr(0, y);
for (int x = 0; x < w; ++x, v <<= bpp) {
if ((x % (8 / bpp)) == 0)
v = *src++;
*destP++ = (((uint)v << bpp) & 0xff00) >> 8;
}
}
}
Sprite &Sprite::operator=(const Sprite &src) {
_surface.copyFrom(src._surface);
_transSurface.copyFrom(src._transSurface);
return *this;
}
void Sprite::draw(Graphics::ManagedSurface &dest, const Common::Point &pt) {
// Get area to be drawn on
Graphics::Surface s = dest.getSubArea(Common::Rect(pt.x, pt.y, pt.x + _surface.w, pt.y + _surface.h));
// Draw the sprite
for (uint16 y = 0; y < _surface.h; ++y) {
const byte *srcP = (const byte *)_surface.getBasePtr(0, y);
const byte *transP = (const byte *)_transSurface.getBasePtr(0, y);
byte *destP = (byte *)s.getBasePtr(0, y);
for (uint16 x = 0; x < _surface.w; ++x, ++srcP, ++transP, ++destP) {
if (_transSurface.empty() || *transP)
*destP = *srcP;
}
}
}
/*-------------------------------------------------------------------*/
void Sprites::load(const Common::Path &name, uint bpp, uint16 w, uint16 h) {
_spriteSize = Point(w, h);
// Open the tiles for access
File f(name);
byte *buffer = new byte[w * h];
// Figure out how many tiles the file has
size_t bytesPerTile = (w / (8 / bpp)) * h;
size_t count = f.size() / bytesPerTile;
// Ensure there's enough capacity for the tileset
if (count > size())
_data.resize(count);
// Iterate through loading the tile data and creating sprites for them
for (size_t idx = 0; idx < count; ++idx) {
f.read(buffer, bytesPerTile);
_data[idx] = Sprite(buffer, bpp, w, h);
}
delete[] buffer;
}
} // End of namespace Gfx
} // End of namespace Shared
} // End of namespace Ultima
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