mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 21:59:17 +00:00
128 lines
2.7 KiB
C++
128 lines
2.7 KiB
C++
/* 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 "draci/screen.h"
|
|
#include "draci/surface.h"
|
|
|
|
namespace Draci {
|
|
|
|
Surface::Surface(int width, int height) {
|
|
this->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
|
|
this->markClean();
|
|
_transparentColor = kDefaultTransparent;
|
|
}
|
|
|
|
Surface::~Surface() {
|
|
this->free();
|
|
}
|
|
|
|
/**
|
|
* @brief Marks a dirty rectangle on the surface
|
|
* @param r The rectangle to be marked dirty
|
|
*/
|
|
void Surface::markDirtyRect(Common::Rect r) {
|
|
Common::List<Common::Rect>::iterator it;
|
|
|
|
r.clip(w, h);
|
|
|
|
if (r.isEmpty())
|
|
return;
|
|
|
|
it = _dirtyRects.begin();
|
|
while (it != _dirtyRects.end()) {
|
|
if (it->contains(r))
|
|
return;
|
|
|
|
if (r.contains(*it))
|
|
it = _dirtyRects.erase(it);
|
|
else
|
|
++it;
|
|
}
|
|
|
|
_dirtyRects.push_back(r);
|
|
}
|
|
|
|
/**
|
|
* @brief Marks the whole surface dirty
|
|
*/
|
|
void Surface::markDirty() {
|
|
_fullUpdate = true;
|
|
}
|
|
|
|
/**
|
|
* @brief Marks the whole surface clean
|
|
*/
|
|
void Surface::markClean() {
|
|
_fullUpdate = false;
|
|
_dirtyRects.clear();
|
|
}
|
|
|
|
/**
|
|
* @brief Fills the surface with the specified color
|
|
*/
|
|
void Surface::fill(uint color) {
|
|
byte *ptr = (byte *)getPixels();
|
|
|
|
memset(ptr, color, (uint)(w * h));
|
|
}
|
|
|
|
/**
|
|
* @brief Calculates horizontal center of an object
|
|
*
|
|
* @param x The x coordinate of the center
|
|
* @param width The width of the object to be centered (in pixels)
|
|
*
|
|
* @return The centered x coordinate
|
|
*/
|
|
uint Surface::centerOnX(int x, int width) const {
|
|
int newX = x - width / 2;
|
|
|
|
if (newX + width > w)
|
|
newX = w - width;
|
|
|
|
if (newX < 0)
|
|
newX = 0;
|
|
|
|
return newX;
|
|
}
|
|
|
|
/**
|
|
* @brief Calculates vertical center of an object
|
|
*
|
|
* @param y The y coordinate of the center
|
|
* @param height The height of the object to be centered (in pixels)
|
|
*
|
|
* @return The centered y coordinate
|
|
*/
|
|
uint Surface::putAboveY(int y, int height) const {
|
|
int newY = y - height;
|
|
|
|
if (newY + height > h)
|
|
newY = h - height;
|
|
|
|
if (newY < 0)
|
|
newY = 0;
|
|
|
|
return newY;
|
|
}
|
|
|
|
} // End of namespace Draci
|