aboutsummaryrefslogtreecommitdiff
path: root/engines/wintermute/base/gfx/osystem/render_ticket.cpp
blob: 94512eb583dec0eb76a401706d7ea5c058f7365a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/* 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.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */


#include "engines/wintermute/base/gfx/osystem/render_ticket.h"
#include "engines/wintermute/base/gfx/osystem/base_surface_osystem.h"
#include "engines/wintermute/graphics/transform_tools.h"
#include "common/textconsole.h"

namespace Wintermute {

RenderTicket::RenderTicket(BaseSurfaceOSystem *owner, const Graphics::Surface *surf, Common::Rect *srcRect, Common::Rect *dstRect, TransformStruct transform) :
	_owner(owner),
	_srcRect(*srcRect),
	_dstRect(*dstRect),
	_drawNum(0),
	_isValid(true),
	_wantsDraw(true),
	_transform(transform) {
	_batchNum = 0;
	if (surf) {
		_surface = new Graphics::Surface();
		_surface->create((uint16)srcRect->width(), (uint16)srcRect->height(), surf->format);
		assert(_surface->format.bytesPerPixel == 4);
		// Get a clipped copy of the surface
		for (int i = 0; i < _surface->h; i++) {
			memcpy(_surface->getBasePtr(0, i), surf->getBasePtr(srcRect->left, srcRect->top + i), srcRect->width() * _surface->format.bytesPerPixel);
		}
		// Then scale it if necessary
		if (_transform._angle != kDefaultAngle) {
			TransparentSurface src(*_surface, false);
			Graphics::Surface *temp = src.rotoscale(transform);
			_surface->free();
			delete _surface;
			_surface = temp;
		} else if (dstRect->width() != srcRect->width() || dstRect->height() != srcRect->height()) { 
			TransparentSurface src(*_surface, false);
			Graphics::Surface *temp = src.scale(dstRect->width(), dstRect->height());
			_surface->free();
			delete _surface;
			_surface = temp;
		}
	} else {
		_surface = nullptr;
		
		if (transform._angle != kDefaultAngle) { // Make sure comparison-tickets get the correct width
			Rect32 newDstRect;
			Point32 newHotspot;
			newDstRect = TransformTools::newRect(_srcRect, transform, &newHotspot);
			_dstRect.setWidth(newDstRect.right - newDstRect.left);
			_dstRect.setHeight(newDstRect.bottom - newDstRect.top);
		}
	}
}

RenderTicket::~RenderTicket() {
	if (_surface) {
		_surface->free();
		delete _surface;
	}
}

bool RenderTicket::operator==(const RenderTicket &t) const {
	if ((t._owner != _owner) ||
		(t._batchNum != _batchNum) ||
		(t._transform != _transform)  || 
		(t._dstRect != _dstRect) ||
		(t._srcRect != _srcRect) 
	) {
		return false;
	}
	return true;
}

// Replacement for SDL2's SDL_RenderCopy
void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface) const {
	TransparentSurface src(*getSurface(), false);

	Common::Rect clipRect;
	clipRect.setWidth(getSurface()->w);
	clipRect.setHeight(getSurface()->h);

	if (_owner) {
		if (_transform._alphaDisable) {
			src.setAlphaMode(TransparentSurface::ALPHA_OPAQUE);
		} else {
			src.setAlphaMode(_owner->getAlphaType());
		}
	}
	src.blit(*_targetSurface, _dstRect.left, _dstRect.top, _transform._flip, &clipRect, _transform._rgbaMod, clipRect.width(), clipRect.height());
}

void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface, Common::Rect *dstRect, Common::Rect *clipRect) const {
	TransparentSurface src(*getSurface(), false);
	bool doDelete = false;
	if (!clipRect) {
		doDelete = true;
		clipRect = new Common::Rect();
		clipRect->setWidth(getSurface()->w);
		clipRect->setHeight(getSurface()->h);
	}

	if (_owner) {
		if (_transform._alphaDisable) {
			src.setAlphaMode(TransparentSurface::ALPHA_OPAQUE);
		} else {
			src.setAlphaMode(_owner->getAlphaType());
		}
	}
	src.blit(*_targetSurface, dstRect->left, dstRect->top, _transform._flip, clipRect, _transform._rgbaMod, clipRect->width(), clipRect->height(), _transform._blendMode);
	if (doDelete) {
		delete clipRect;
	}
}

} // End of namespace Wintermute