summaryrefslogtreecommitdiff
path: root/src/video/win32_v.h
blob: f6ca291f101bd0889877c0665c0733a24fa4c01e (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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file win32_v.h Base of the Windows video driver. */

#ifndef VIDEO_WIN32_H
#define VIDEO_WIN32_H

#include "video_driver.hpp"
#include <mutex>
#include <condition_variable>

/** Base class for Windows video drivers. */
class VideoDriver_Win32Base : public VideoDriver {
public:
	VideoDriver_Win32Base() : main_wnd(nullptr), fullscreen(false) {}

	void Stop() override;

	void MakeDirty(int left, int top, int width, int height) override;

	void MainLoop() override;

	bool ChangeResolution(int w, int h) override;

	bool ToggleFullscreen(bool fullscreen) override;

	bool ClaimMousePointer() override;

	void EditBoxLostFocus() override;

	std::vector<int> GetListOfMonitorRefreshRates() override;

protected:
	HWND main_wnd;          ///< Handle to system window.
	bool fullscreen;        ///< Whether to use (true) fullscreen mode.
	bool has_focus = false; ///< Does our window have system focus?
	Rect dirty_rect;        ///< Region of the screen that needs redrawing.
	int width = 0;          ///< Width in pixels of our display surface.
	int height = 0;         ///< Height in pixels of our display surface.
	int width_org = 0;      ///< Original monitor resolution width, before we changed it.
	int height_org = 0;     ///< Original monitor resolution height, before we changed it.

	bool buffer_locked;     ///< Video buffer was locked by the main thread.

	Dimension GetScreenSize() const override;
	float GetDPIScale() override;
	void InputLoop() override;
	bool LockVideoBuffer() override;
	void UnlockVideoBuffer() override;
	void CheckPaletteAnim() override;
	bool PollEvent() override;

	void Initialize();
	bool MakeWindow(bool full_screen, bool resize = true);
	void ClientSizeChanged(int w, int h, bool force = false);

	/** Get screen depth to use for fullscreen mode. */
	virtual uint8 GetFullscreenBpp();
	/** (Re-)create the backing store. */
	virtual bool AllocateBackingStore(int w, int h, bool force = false) = 0;
	/** Get a pointer to the video buffer. */
	virtual void *GetVideoPointer() = 0;
	/** Hand video buffer back to the painting backend. */
	virtual void ReleaseVideoPointer() {}
	/** Palette of the window has changed. */
	virtual void PaletteChanged(HWND hWnd) = 0;

private:
	friend LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
};
/** The GDI video driver for windows. */
class VideoDriver_Win32GDI : public VideoDriver_Win32Base {
public:
	VideoDriver_Win32GDI() : dib_sect(nullptr), gdi_palette(nullptr), buffer_bits(nullptr) {}

	const char *Start(const StringList &param) override;

	void Stop() override;

	bool AfterBlitterChange() override;

	const char *GetName() const override { return "win32"; }

protected:
	HBITMAP  dib_sect;      ///< System bitmap object referencing our rendering buffer.
	HPALETTE gdi_palette;   ///< Palette object for 8bpp blitter.
	void     *buffer_bits;  ///< Internal rendering buffer.

	void Paint() override;
	void *GetVideoPointer() override { return this->buffer_bits; }

	bool AllocateBackingStore(int w, int h, bool force = false) override;
	void PaletteChanged(HWND hWnd) override;
	void MakePalette();
	void UpdatePalette(HDC dc, uint start, uint count);

#ifdef _DEBUG
public:
	static int RedrawScreenDebug();
#endif
};

/** The factory for Windows' video driver. */
class FVideoDriver_Win32GDI : public DriverFactoryBase {
public:
	FVideoDriver_Win32GDI() : DriverFactoryBase(Driver::DT_VIDEO, 9, "win32", "Win32 GDI Video Driver") {}
	Driver *CreateInstance() const override { return new VideoDriver_Win32GDI(); }
};

#ifdef WITH_OPENGL

/** The OpenGL video driver for windows. */
class VideoDriver_Win32OpenGL : public VideoDriver_Win32Base {
public:
	VideoDriver_Win32OpenGL() : dc(nullptr), gl_rc(nullptr), anim_buffer(nullptr) {}

	const char *Start(const StringList &param) override;

	void Stop() override;

	bool ToggleFullscreen(bool fullscreen) override;

	bool AfterBlitterChange() override;

	bool HasEfficient8Bpp() const override { return true; }

	bool UseSystemCursor() override { return true; }

	void PopulateSystemSprites() override;

	void ClearSystemSprites() override;

	bool HasAnimBuffer() override { return true; }
	uint8 *GetAnimBuffer() override { return this->anim_buffer; }

	const char *GetName() const override { return "win32-opengl"; }

protected:
	HDC    dc;          ///< Window device context.
	HGLRC  gl_rc;       ///< OpenGL context.
	bool   vsync;       ///< Enable VSync?
	uint8 *anim_buffer; ///< Animation buffer from OpenGL back-end.

	uint8 GetFullscreenBpp() override { return 32; } // OpenGL is always 32 bpp.

	void Paint() override;

	bool AllocateBackingStore(int w, int h, bool force = false) override;
	void *GetVideoPointer() override;
	void ReleaseVideoPointer() override;
	void PaletteChanged(HWND hWnd) override {}

	const char *AllocateContext();
	void DestroyContext();
};

/** The factory for Windows' OpenGL video driver. */
class FVideoDriver_Win32OpenGL : public DriverFactoryBase {
public:
	FVideoDriver_Win32OpenGL() : DriverFactoryBase(Driver::DT_VIDEO, 10, "win32-opengl", "Win32 OpenGL Video Driver") {}
	/* virtual */ Driver *CreateInstance() const override { return new VideoDriver_Win32OpenGL(); }

protected:
	bool UsesHardwareAcceleration() const override { return true; }
};

#endif /* WITH_OPENGL */

#endif /* VIDEO_WIN32_H */