1 // -*- Mode: C++; tab-width:2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi:tw=80:et:ts=2:sts=2
3 //
4 // -----------------------------------------------------------------------
5 //
6 // This file is part of RLVM, a RealLive virtual machine clone.
7 //
8 // -----------------------------------------------------------------------
9 //
10 // Copyright (C) 2006 Elliot Glaysher
11 //
12 // This program is free software; you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation; either version 3 of the License, or
15 // (at your option) any later version.
16 //
17 // This program is distributed in the hope that it will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 // GNU General Public License for more details.
21 //
22 // You should have received a copy of the GNU General Public License
23 // along with this program; if not, write to the Free Software
24 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
25 //
26 // -----------------------------------------------------------------------
27
28 #include "effects/effect.h"
29
30 #include "machine/rlmachine.h"
31 #include "systems/base/event_system.h"
32 #include "systems/base/graphics_system.h"
33 #include "systems/base/surface.h"
34 #include "systems/base/system.h"
35
36 // -----------------------------------------------------------------------
37 // Effect
38 // -----------------------------------------------------------------------
39
Effect(RLMachine & machine,std::shared_ptr<Surface> src,std::shared_ptr<Surface> dst,Size size,int time)40 Effect::Effect(RLMachine& machine,
41 std::shared_ptr<Surface> src,
42 std::shared_ptr<Surface> dst,
43 Size size,
44 int time)
45 : screen_size_(size),
46 duration_(time),
47 start_time_(machine.system().event().GetTicks()),
48 machine_(machine),
49 src_surface_(src),
50 dst_surface_(dst) {
51 machine.system().graphics().set_is_responsible_for_update(false);
52 }
53
~Effect()54 Effect::~Effect() {
55 machine_.system().graphics().set_is_responsible_for_update(true);
56 }
57
operator ()(RLMachine & machine)58 bool Effect::operator()(RLMachine& machine) {
59 unsigned int time = machine.system().event().GetTicks();
60 unsigned int current_frame = time - start_time_;
61
62 bool fast_forward = machine.system().ShouldFastForward();
63
64 if (current_frame >= duration_ || fast_forward) {
65 return true;
66 } else {
67 GraphicsSystem& graphics = machine.system().graphics();
68 graphics.BeginFrame();
69
70 if (BlitOriginalImage()) {
71 dst_surface().RenderToScreen(
72 Rect(Point(0, 0), size()), Rect(Point(0, 0), size()), 255);
73 }
74
75 PerformEffectForTime(machine, current_frame);
76
77 graphics.EndFrame();
78 return false;
79 }
80 }
81
82 // -----------------------------------------------------------------------
83 // BlitAfterEffectFinishes
84 // -----------------------------------------------------------------------
85
BlitAfterEffectFinishes(LongOperation * in,std::shared_ptr<Surface> src,std::shared_ptr<Surface> dst,const Rect & srcRect,const Rect & destRect)86 BlitAfterEffectFinishes::BlitAfterEffectFinishes(LongOperation* in,
87 std::shared_ptr<Surface> src,
88 std::shared_ptr<Surface> dst,
89 const Rect& srcRect,
90 const Rect& destRect)
91 : PerformAfterLongOperationDecorator(in),
92 src_surface_(src),
93 dst_surface_(dst),
94 src_rect_(srcRect),
95 dest_rect_(destRect) {}
96
~BlitAfterEffectFinishes()97 BlitAfterEffectFinishes::~BlitAfterEffectFinishes() {}
98
PerformAfterLongOperation(RLMachine & machine)99 void BlitAfterEffectFinishes::PerformAfterLongOperation(RLMachine& machine) {
100 // Blit DC1 onto DC0, with full opacity, and end the operation
101 src_surface_->BlitToSurface(*dst_surface_, src_rect_, dest_rect_, 255);
102
103 // Now force a screen refresh
104 machine.system().graphics().ForceRefresh();
105 }
106