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DMD.h
1 /*
2  * Copyright (C) 2012 Southern Storm Software, Pty Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included
12  * in all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20  * DEALINGS IN THE SOFTWARE.
21  */
22 
23 #ifndef DMD_h
24 #define DMD_h
25 
26 #include "Bitmap.h"
27 
28 class DMD : public Bitmap
29 {
30 public:
31  explicit DMD(int widthPanels = 1, int heightPanels = 1);
32  ~DMD();
33 
34  bool doubleBuffer() const { return _doubleBuffer; }
35  void setDoubleBuffer(bool doubleBuffer);
36  void swapBuffers();
37  void swapBuffersAndCopy();
38 
39  void loop();
40  void refresh();
41 
42  void enableTimer1();
43  void disableTimer1();
44 
45  void enableTimer2();
46  void disableTimer2();
47 
48  static Color fromRGB(uint8_t r, uint8_t g, uint8_t b);
49 
50 private:
51  // Disable copy constructor and operator=().
52  DMD(const DMD &other) : Bitmap(other) {}
53  DMD &operator=(const DMD &) { return *this; }
54 
55  bool _doubleBuffer;
56  uint8_t phase;
57  uint8_t *fb0;
58  uint8_t *fb1;
59  uint8_t *displayfb;
60  unsigned long lastRefresh;
61 };
62 
63 #endif
Handle large dot matrix displays composed of LED's.
Definition: DMD.h:28
void disableTimer1()
Disables Timer1 overflow interrupts.
Definition: DMD.cpp:614
void loop()
Performs regular display refresh activities from the application's main loop.
Definition: DMD.cpp:420
void disableTimer2()
Disables Timer2 overflow interrupts.
Definition: DMD.cpp:674
Represents a monochrome bitmap within main memory.
Definition: Bitmap.h:32
bool doubleBuffer() const
Returns true if the display is double-buffered; false if single-buffered. The default is false...
Definition: DMD.h:34
void swapBuffers()
Swaps the buffers that are used for rendering to the display.
Definition: DMD.cpp:363
void enableTimer1()
Enables Timer1 overflow interrupts for updating this display.
Definition: DMD.cpp:563
~DMD()
Destroys this dot matrix display handler.
Definition: DMD.cpp:278
uint8_t Color
Type that represents the color of a pixel in a bitmap.
Definition: Bitmap.h:40
void swapBuffersAndCopy()
Swaps the buffers that are used for rendering to the display and copies the former back buffer conten...
Definition: DMD.cpp:396
DMD(int widthPanels=1, int heightPanels=1)
Constructs a new dot matrix display handler for a display that is widthPanels x heightPanels in size...
Definition: DMD.cpp:237
void enableTimer2()
Enables Timer2 overflow interrupts for updating this display.
Definition: DMD.cpp:646
static Color fromRGB(uint8_t r, uint8_t g, uint8_t b)
Converts an RGB value into a pixel color value.
Definition: DMD.cpp:690
void refresh()
Refresh the display.
Definition: DMD.cpp:478
void setDoubleBuffer(bool doubleBuffer)
Enables or disables double-buffering according to doubleBuffer.
Definition: DMD.cpp:314