zblit_public.h

/* 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/>.
 *
 */

#ifndef GRAPHICS_TINYGL_ZBLIT_PUBLIC_H
#define GRAPHICS_TINYGL_ZBLIT_PUBLIC_H

#include "common/rect.h"

#include "graphics/surface.h"

namespace TinyGL {

struct BlitTransform {
    BlitTransform(int dstX, int dstY) : _rotation(0), _originX(0), _originY(0), _aTint(1.0f),
                                        _rTint(1.0f), _gTint(1.0f), _bTint(1.0), _flipHorizontally(false),
                                        _flipVertically(false) {
        _destinationRectangle.translate(dstX, dstY);
    }

    void sourceRectangle(int srcX, int srcY, int srcWidth, int srcHeight) {
        _sourceRectangle.left = srcX;
        _sourceRectangle.top = srcY;
        _sourceRectangle.setWidth(srcWidth);
        _sourceRectangle.setHeight(srcHeight);
    }

    void tint(float aTint, float rTint = 1.0f, float gTint = 1.0f, float bTint = 1.0f) {
        _aTint = aTint;
        _rTint = rTint;
        _gTint = gTint;
        _bTint = bTint;
    }
/*
    void scale(int width, int height) {
        _destinationRectangle.setWidth(width);
        _destinationRectangle.setHeight(height);
    }
*/
    void rotate(int rotation, int originX, int originY) {
        _rotation = rotation;
        _originX = originX;
        _originY = originY;
    }

    void flip(bool verticalFlip, bool horizontalFlip) {
        _flipVertically = verticalFlip;
        _flipHorizontally = horizontalFlip;
    }

    bool operator==(const BlitTransform &other) const {
        return
            _sourceRectangle == other._sourceRectangle && _destinationRectangle == other._destinationRectangle &&
            _rotation == other._rotation && _originX == other._originX && _originY == other._originY &&
            _aTint == other._aTint && _rTint == other._rTint && _gTint == other._gTint && _bTint == other._bTint &&
            _flipHorizontally == other._flipHorizontally && _flipVertically == other._flipVertically;
    }

    Common::Rect _sourceRectangle;
    Common::Rect _destinationRectangle;
    int _rotation;
    int _originX, _originY;
    float _aTint, _rTint, _gTint, _bTint;
    bool _flipHorizontally, _flipVertically;
};

struct BlitImage;

} // end of namespace TinyGL

TinyGL::BlitImage *tglGenBlitImage();

void tglUploadBlitImage(TinyGL::BlitImage *blitImage, const Graphics::Surface &surface, uint32 colorKey, bool applyColorKey, bool zBuffer = false);

void tglDeleteBlitImage(TinyGL::BlitImage *blitImage);

void tglGetBlitImageSize(TinyGL::BlitImage *blitImage, int &width, int &height);

int tglGetBlitImageVersion(TinyGL::BlitImage *blitImage);

void tglBlit(TinyGL::BlitImage *blitImage, const TinyGL::BlitTransform &transform);

void tglBlit(TinyGL::BlitImage *blitImage, int x, int y);

void tglBlitFast(TinyGL::BlitImage *blitImage, int x, int y);

void tglBlitZBuffer(TinyGL::BlitImage *blitImage, int x, int y);

void tglIncBlitImageRef(TinyGL::BlitImage *blitImage);

#endif // GRAPHICS_TINYGL_ZBLIT_PUBLIC_H