David Smart / RA8875 Featured

Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.

Dependents:   FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more

Fork of SPI_TFT by Peter Drescher

See Components - RA8875 Based Display

Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.

Offline Help Manual (Windows chm)

/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)

GraphicsDisplay.h@41:2956a0a221e5, 2014-02-08 (annotated)

Committer:
WiredHome
Date:
Sat Feb 08 17:35:45 2014 +0000
Revision:
41:2956a0a221e5
Parent:
37:f19b7e7449dc
Child:
42:7cbdfd2bbfc5
Added PrintScreen method, to capture the current image to a file system.; Improved performance of pixel streaming (rendering a bitmap and capturing a bitmap).; Ran performance checks, then disabled debug and the performance information.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:de9d1462a835 1 /* mbed GraphicsDisplay Display Library Base Class
dreschpe 0:de9d1462a835 2 * Copyright (c) 2007-2009 sford
dreschpe 0:de9d1462a835 3 * Released under the MIT License: http://mbed.org/license/mit
dreschpe 0:de9d1462a835 4 *
dreschpe 0:de9d1462a835 5 * A library for providing a common base class for Graphics displays
dreschpe 0:de9d1462a835 6 * To port a new display, derive from this class and implement
dreschpe 0:de9d1462a835 7 * the constructor (setup the display), pixel (put a pixel
dreschpe 0:de9d1462a835 8 * at a location), width and height functions. Everything else
dreschpe 0:de9d1462a835 9 * (locate, printf, putc, cls, window, putp, fill, blit, blitbit)
dreschpe 0:de9d1462a835 10 * will come for free. You can also provide a specialised implementation
dreschpe 0:de9d1462a835 11 * of window and putp to speed up the results
dreschpe 0:de9d1462a835 12 */
dreschpe 0:de9d1462a835 13
dreschpe 0:de9d1462a835 14 #ifndef MBED_GRAPHICSDISPLAY_H
dreschpe 0:de9d1462a835 15 #define MBED_GRAPHICSDISPLAY_H
WiredHome 32:0e4f2ae512e2 16 #include "Bitmap.h"
dreschpe 0:de9d1462a835 17 #include "TextDisplay.h"
dreschpe 0:de9d1462a835 18
WiredHome 37:f19b7e7449dc 19 // GraphicsDisplay has one "soft font" which is in a different format
WiredHome 37:f19b7e7449dc 20 // then the primary font rendering api - see set_font(...). This is
WiredHome 37:f19b7e7449dc 21 // therefore deprecated, but preserved for a time for backward
WiredHome 37:f19b7e7449dc 22 // compatibility.
WiredHome 37:f19b7e7449dc 23 // #define LOCALFONT
WiredHome 37:f19b7e7449dc 24
WiredHome 37:f19b7e7449dc 25
WiredHome 32:0e4f2ae512e2 26 /// The GraphicsDisplay class
WiredHome 32:0e4f2ae512e2 27 ///
WiredHome 32:0e4f2ae512e2 28 /// This graphics display class supports both graphics and text operations.
WiredHome 32:0e4f2ae512e2 29 /// Typically, a subclass is derived from this which has localizations to
WiredHome 32:0e4f2ae512e2 30 /// adapt to a specific hardware platform (e.g. a display controller chip),
WiredHome 32:0e4f2ae512e2 31 /// that overrides methods in here to either add more capability or perhaps
WiredHome 32:0e4f2ae512e2 32 /// to improve performance, by leveraging specific hardware capabilities.
WiredHome 32:0e4f2ae512e2 33 ///
WiredHome 32:0e4f2ae512e2 34 class GraphicsDisplay : public TextDisplay
WiredHome 32:0e4f2ae512e2 35 {
WiredHome 32:0e4f2ae512e2 36 public:
WiredHome 32:0e4f2ae512e2 37 /// The constructor
dreschpe 0:de9d1462a835 38 GraphicsDisplay(const char* name);
WiredHome 32:0e4f2ae512e2 39
WiredHome 32:0e4f2ae512e2 40 /// Draw a pixel in the specified color.
WiredHome 32:0e4f2ae512e2 41 ///
WiredHome 32:0e4f2ae512e2 42 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 43 ///
WiredHome 32:0e4f2ae512e2 44 /// @param x is the horizontal offset to this pixel.
WiredHome 32:0e4f2ae512e2 45 /// @param y is the vertical offset to this pixel.
WiredHome 32:0e4f2ae512e2 46 /// @param color defines the color for the pixel.
WiredHome 32:0e4f2ae512e2 47 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 48 ///
WiredHome 37:f19b7e7449dc 49 virtual RetCode_t pixel(loc_t x, loc_t y, color_t color) = 0;
WiredHome 32:0e4f2ae512e2 50
WiredHome 41:2956a0a221e5 51 /// Write a stream of pixels to the display.
WiredHome 41:2956a0a221e5 52 ///
WiredHome 41:2956a0a221e5 53 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 54 ///
WiredHome 41:2956a0a221e5 55 /// @param p is a pointer to a color_t array to write.
WiredHome 41:2956a0a221e5 56 /// @param count is the number of pixels to write.
WiredHome 41:2956a0a221e5 57 /// @param x is the horizontal position on the display.
WiredHome 41:2956a0a221e5 58 /// @param y is the vertical position on the display.
WiredHome 41:2956a0a221e5 59 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 60 ///
WiredHome 41:2956a0a221e5 61 virtual RetCode_t pixelStream(color_t * p, uint32_t count, loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 62
WiredHome 41:2956a0a221e5 63 /// Get a pixel from the display.
WiredHome 41:2956a0a221e5 64 ///
WiredHome 41:2956a0a221e5 65 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 66 ///
WiredHome 41:2956a0a221e5 67 /// @param x is the horizontal offset to this pixel.
WiredHome 41:2956a0a221e5 68 /// @param y is the vertical offset to this pixel.
WiredHome 41:2956a0a221e5 69 /// @returns the pixel. see @color_t
WiredHome 41:2956a0a221e5 70 ///
WiredHome 41:2956a0a221e5 71 virtual color_t getPixel(loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 72
WiredHome 41:2956a0a221e5 73 /// Get a stream of pixels from the display.
WiredHome 41:2956a0a221e5 74 ///
WiredHome 41:2956a0a221e5 75 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 76 ///
WiredHome 41:2956a0a221e5 77 /// @param p is a pointer to a color_t array to accept the stream.
WiredHome 41:2956a0a221e5 78 /// @param count is the number of pixels to read.
WiredHome 41:2956a0a221e5 79 /// @param x is the horizontal offset to this pixel.
WiredHome 41:2956a0a221e5 80 /// @param y is the vertical offset to this pixel.
WiredHome 41:2956a0a221e5 81 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 82 ///
WiredHome 41:2956a0a221e5 83 virtual RetCode_t getPixelStream(color_t * p, uint32_t count, loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 84
WiredHome 32:0e4f2ae512e2 85 /// get the screen width in pixels
WiredHome 32:0e4f2ae512e2 86 ///
WiredHome 32:0e4f2ae512e2 87 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 88 ///
WiredHome 32:0e4f2ae512e2 89 /// @returns screen width in pixels.
WiredHome 32:0e4f2ae512e2 90 ///
WiredHome 32:0e4f2ae512e2 91 virtual uint16_t width() = 0;
WiredHome 32:0e4f2ae512e2 92
WiredHome 32:0e4f2ae512e2 93 /// get the screen height in pixels
WiredHome 32:0e4f2ae512e2 94 ///
WiredHome 32:0e4f2ae512e2 95 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 96 ///
WiredHome 32:0e4f2ae512e2 97 /// @returns screen height in pixels.
WiredHome 32:0e4f2ae512e2 98 ///
WiredHome 32:0e4f2ae512e2 99 virtual uint16_t height() = 0;
WiredHome 32:0e4f2ae512e2 100
WiredHome 32:0e4f2ae512e2 101 /// Prepare the controller to write binary data to the screen by positioning
WiredHome 32:0e4f2ae512e2 102 /// the memory cursor.
WiredHome 32:0e4f2ae512e2 103 ///
WiredHome 32:0e4f2ae512e2 104 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 105 ///
WiredHome 32:0e4f2ae512e2 106 /// @param x is the horizontal position in pixels (from the left edge)
WiredHome 32:0e4f2ae512e2 107 /// @param y is the vertical position in pixels (from the top edge)
WiredHome 32:0e4f2ae512e2 108 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 109 ///
WiredHome 37:f19b7e7449dc 110 virtual RetCode_t SetGraphicsCursor(loc_t x, loc_t y) = 0;
WiredHome 32:0e4f2ae512e2 111
WiredHome 41:2956a0a221e5 112 /// Prepare the controller to read binary data from the screen by positioning
WiredHome 41:2956a0a221e5 113 /// the memory read cursor.
WiredHome 41:2956a0a221e5 114 ///
WiredHome 41:2956a0a221e5 115 /// @param x is the horizontal position in pixels (from the left edge)
WiredHome 41:2956a0a221e5 116 /// @param y is the vertical position in pixels (from the top edge)
WiredHome 41:2956a0a221e5 117 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 118 ///
WiredHome 41:2956a0a221e5 119 virtual RetCode_t SetGraphicsCursorRead(loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 120
WiredHome 32:0e4f2ae512e2 121 /// Draw a filled rectangle in the specified color
WiredHome 32:0e4f2ae512e2 122 ///
WiredHome 32:0e4f2ae512e2 123 /// @note As a side effect, this changes the current
WiredHome 32:0e4f2ae512e2 124 /// foreground color for subsequent operations.
WiredHome 32:0e4f2ae512e2 125 ///
WiredHome 32:0e4f2ae512e2 126 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 127 ///
WiredHome 32:0e4f2ae512e2 128 /// @param x1 is the horizontal start of the line.
WiredHome 32:0e4f2ae512e2 129 /// @param y1 is the vertical start of the line.
WiredHome 32:0e4f2ae512e2 130 /// @param x2 is the horizontal end of the line.
WiredHome 32:0e4f2ae512e2 131 /// @param y2 is the vertical end of the line.
WiredHome 32:0e4f2ae512e2 132 /// @param color defines the foreground color.
WiredHome 32:0e4f2ae512e2 133 /// @param fillit is optional to NOFILL the rectangle. default is FILL.
WiredHome 32:0e4f2ae512e2 134 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 135 ///
WiredHome 37:f19b7e7449dc 136 virtual RetCode_t fillrect(loc_t x1, loc_t y1, loc_t x2, loc_t y2,
WiredHome 32:0e4f2ae512e2 137 color_t color, fill_t fillit = FILL) = 0;
WiredHome 32:0e4f2ae512e2 138
WiredHome 32:0e4f2ae512e2 139
WiredHome 32:0e4f2ae512e2 140 virtual RetCode_t WriteCommand(unsigned char command, unsigned int data = 0xFFFF) = 0;
WiredHome 32:0e4f2ae512e2 141 virtual RetCode_t WriteData(unsigned char data) = 0;
WiredHome 32:0e4f2ae512e2 142
WiredHome 32:0e4f2ae512e2 143 /// Set the window, which controls where items are written to the screen.
WiredHome 32:0e4f2ae512e2 144 ///
WiredHome 32:0e4f2ae512e2 145 /// When something hits the window width, it wraps back to the left side
WiredHome 32:0e4f2ae512e2 146 /// and down a row. If the initial write is outside the window, it will
WiredHome 32:0e4f2ae512e2 147 /// be captured into the window when it crosses a boundary.
WiredHome 32:0e4f2ae512e2 148 ///
WiredHome 32:0e4f2ae512e2 149 /// @param x is the left edge in pixels.
WiredHome 32:0e4f2ae512e2 150 /// @param y is the top edge in pixels.
WiredHome 33:b6b710758ab3 151 /// @param w is the window width in pixels.
WiredHome 33:b6b710758ab3 152 /// @param h is the window height in pixels.
WiredHome 32:0e4f2ae512e2 153 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 154 ///
WiredHome 37:f19b7e7449dc 155 virtual RetCode_t window(loc_t x, loc_t y, dim_t w, dim_t h);
WiredHome 32:0e4f2ae512e2 156
WiredHome 32:0e4f2ae512e2 157 /// Clear the screen.
WiredHome 32:0e4f2ae512e2 158 ///
WiredHome 32:0e4f2ae512e2 159 /// The behavior is to clear the whole screen.
WiredHome 32:0e4f2ae512e2 160 ///
WiredHome 32:0e4f2ae512e2 161 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 162 ///
WiredHome 32:0e4f2ae512e2 163 virtual RetCode_t cls();
WiredHome 32:0e4f2ae512e2 164
WiredHome 32:0e4f2ae512e2 165
WiredHome 31:c72e12cd5c67 166 virtual void WindowMax(void);
dreschpe 0:de9d1462a835 167
WiredHome 32:0e4f2ae512e2 168 /// method to put a single color pixel to the screen.
WiredHome 32:0e4f2ae512e2 169 ///
WiredHome 32:0e4f2ae512e2 170 /// This method may be called as many times as necessary after
WiredHome 32:0e4f2ae512e2 171 /// @see _StartGraphicsStream() is called, and it should be followed
WiredHome 32:0e4f2ae512e2 172 /// by _EndGraphicsStream.
WiredHome 32:0e4f2ae512e2 173 ///
WiredHome 32:0e4f2ae512e2 174 /// @param pixel is a color value to be put on the screen.
WiredHome 32:0e4f2ae512e2 175 /// @returns error code.
WiredHome 32:0e4f2ae512e2 176 ///
WiredHome 32:0e4f2ae512e2 177 virtual RetCode_t putp(color_t pixel);
WiredHome 32:0e4f2ae512e2 178
WiredHome 32:0e4f2ae512e2 179
WiredHome 33:b6b710758ab3 180 virtual void fill(int x, int y, int w, int h, color_t color);
WiredHome 33:b6b710758ab3 181 virtual void blit(int x, int y, int w, int h, const int * color);
WiredHome 29:422616aa04bd 182
WiredHome 29:422616aa04bd 183 /// This method transfers one character from the external font data
WiredHome 29:422616aa04bd 184 /// to the screen.
WiredHome 29:422616aa04bd 185 ///
WiredHome 29:422616aa04bd 186 /// @note the font data is in a special format as generate by
WiredHome 29:422616aa04bd 187 /// the mikroe font creator. \\
WiredHome 29:422616aa04bd 188 /// See http://www.mikroe.com/glcd-font-creator/
WiredHome 29:422616aa04bd 189 ///
WiredHome 29:422616aa04bd 190 /// @param x is the horizontal pixel coordinate
WiredHome 29:422616aa04bd 191 /// @param y is the vertical pixel coordinate
WiredHome 29:422616aa04bd 192 /// @param fontTable is the base of the table which has the metrics
WiredHome 29:422616aa04bd 193 /// @param fontChar is the start of that record in the table for the char (e.g. 'A' - 'Z')
WiredHome 29:422616aa04bd 194 /// @returns how far the cursor should advance to the right in pixels
WiredHome 29:422616aa04bd 195 ///
WiredHome 29:422616aa04bd 196 virtual int fontblit(int x, int y, const unsigned char * fontTable, const unsigned char * fontChar);
WiredHome 29:422616aa04bd 197
WiredHome 32:0e4f2ae512e2 198 /// This method returns the color value from a palette.
WiredHome 32:0e4f2ae512e2 199 ///
WiredHome 32:0e4f2ae512e2 200 /// This method accepts a pointer to a Bitmap color palette, which
WiredHome 32:0e4f2ae512e2 201 /// is a table in memory composed of RGB Quad values (r, g, b, 0),
WiredHome 32:0e4f2ae512e2 202 /// and an index into that table. It then extracts the color information
WiredHome 32:0e4f2ae512e2 203 /// and downsamples it to a color_t value which it returns.
WiredHome 32:0e4f2ae512e2 204 ///
WiredHome 32:0e4f2ae512e2 205 /// @note This method probably has very little value outside of
WiredHome 32:0e4f2ae512e2 206 /// the internal methods for reading BMP files.
WiredHome 32:0e4f2ae512e2 207 ///
WiredHome 32:0e4f2ae512e2 208 /// @param colorPalette is the handle to the color palette to use.
WiredHome 32:0e4f2ae512e2 209 /// @param i is the index into the color palette.
WiredHome 32:0e4f2ae512e2 210 /// @returns the color in color_t format.
WiredHome 32:0e4f2ae512e2 211 ///
WiredHome 32:0e4f2ae512e2 212 color_t RGBQuadToRGB16(RGBQUAD * colorPalette, uint16_t i);
WiredHome 32:0e4f2ae512e2 213
WiredHome 41:2956a0a221e5 214 /// This method converts a 16-bit color value into a 24-bit RGB Quad.
WiredHome 41:2956a0a221e5 215 ///
WiredHome 41:2956a0a221e5 216 /// @param c is the 16-bit color. @see color_t
WiredHome 41:2956a0a221e5 217 /// @returns an RGBQUAD value. @see RGBQUAD
WiredHome 41:2956a0a221e5 218 ///
WiredHome 41:2956a0a221e5 219 RGBQUAD RGB16ToRGBQuad(color_t c);
WiredHome 41:2956a0a221e5 220
WiredHome 31:c72e12cd5c67 221 /// This method reads a disk file that is in bitmap format and
WiredHome 31:c72e12cd5c67 222 /// puts it on the screen.
WiredHome 31:c72e12cd5c67 223 ///
WiredHome 36:300f6ee0b2cf 224 /// Supported formats:
WiredHome 36:300f6ee0b2cf 225 /// \li 4-bit color format (16 colors)
WiredHome 36:300f6ee0b2cf 226 /// \li 8-bit color format (256 colors)
WiredHome 36:300f6ee0b2cf 227 /// \li 16-bit color format (65k colors)
WiredHome 36:300f6ee0b2cf 228 /// \li compression: no.
WiredHome 36:300f6ee0b2cf 229 ///
WiredHome 36:300f6ee0b2cf 230 /// @note This is a slow operation, typically due to the use of
WiredHome 36:300f6ee0b2cf 231 /// the file system, and partially because bmp files
WiredHome 31:c72e12cd5c67 232 /// are stored from the bottom up, and the memory is written
WiredHome 32:0e4f2ae512e2 233 /// from the top down; as a result, it constantly 'seeks'
WiredHome 32:0e4f2ae512e2 234 /// on the file system for the next row of information.
WiredHome 31:c72e12cd5c67 235 ///
WiredHome 34:c99ec28fac66 236 /// As a performance test, a sample picture was timed. A family picture
WiredHome 34:c99ec28fac66 237 /// was converted to Bitmap format; shrunk to 352 x 272 pixels and save
WiredHome 34:c99ec28fac66 238 /// in 8-bit color format. The resulting file size was 94.5 KByte.
WiredHome 34:c99ec28fac66 239 /// The SPI port interface was set to 20 MHz.
WiredHome 34:c99ec28fac66 240 /// The original bitmap rendering software was purely in software,
WiredHome 34:c99ec28fac66 241 /// pushing 1 pixel at a time to the write function, which did use SPI
WiredHome 34:c99ec28fac66 242 /// hardware (not pin wiggling) to transfer commands and data to the
WiredHome 34:c99ec28fac66 243 /// display. Then, the driver was improved to leverage the capability
WiredHome 34:c99ec28fac66 244 /// of the derived display driver. As a final check, instead of the
WiredHome 34:c99ec28fac66 245 /// [known slow] local file system, a randomly chosen USB stick was
WiredHome 34:c99ec28fac66 246 /// used. The performance results are impressive (but depend on the
WiredHome 34:c99ec28fac66 247 /// listed factors).
WiredHome 34:c99ec28fac66 248 ///
WiredHome 35:7dcab9e3ab25 249 /// \li 34 seconds, LocalFileSystem, Software Rendering
WiredHome 35:7dcab9e3ab25 250 /// \li 9 seconds, LocalFileSystem, Hardware Rending for RA8875
WiredHome 35:7dcab9e3ab25 251 /// \li 3 seconds, MSCFileSystem, Hardware Rendering for RA8875
WiredHome 34:c99ec28fac66 252 ///
WiredHome 31:c72e12cd5c67 253 /// @param x is the horizontal pixel coordinate
WiredHome 31:c72e12cd5c67 254 /// @param y is the vertical pixel coordinate
WiredHome 31:c72e12cd5c67 255 /// @param Name_BMP is the filename on the local file system.
WiredHome 31:c72e12cd5c67 256 /// @returns success or error code.
WiredHome 31:c72e12cd5c67 257 ///
WiredHome 37:f19b7e7449dc 258 RetCode_t RenderBitmapFile(loc_t x, loc_t y, const char *Name_BMP);
WiredHome 31:c72e12cd5c67 259
WiredHome 41:2956a0a221e5 260 /// This method captures the specified area as a 24-bit bitmap file.
WiredHome 41:2956a0a221e5 261 ///
WiredHome 41:2956a0a221e5 262 /// Even though this is a 16-bit display, the stored image is in
WiredHome 41:2956a0a221e5 263 /// 24-bit format.
WiredHome 41:2956a0a221e5 264 ///
WiredHome 41:2956a0a221e5 265 /// @param x is the left edge of the region to capture
WiredHome 41:2956a0a221e5 266 /// @param y is the top edge of the region to capture
WiredHome 41:2956a0a221e5 267 /// @param w is the width of the region to capture
WiredHome 41:2956a0a221e5 268 /// @param h is the height of the region to capture.
WiredHome 41:2956a0a221e5 269 /// @return success or error code.
WiredHome 41:2956a0a221e5 270 ///
WiredHome 41:2956a0a221e5 271 RetCode_t PrintScreen(loc_t x, loc_t y, dim_t w, dim_t h, const char *Name_BMP);
WiredHome 41:2956a0a221e5 272
WiredHome 29:422616aa04bd 273 /// prints one character at the specified coordinates.
WiredHome 29:422616aa04bd 274 ///
WiredHome 29:422616aa04bd 275 /// This will print the character at the specified pixel coordinates.
WiredHome 29:422616aa04bd 276 ///
WiredHome 29:422616aa04bd 277 /// @param x is the horizontal offset in pixels.
WiredHome 29:422616aa04bd 278 /// @param y is the vertical offset in pixels.
WiredHome 29:422616aa04bd 279 /// @param value is the character to print.
WiredHome 29:422616aa04bd 280 /// @returns number of pixels to index to the right if a character was printed, 0 otherwise.
WiredHome 29:422616aa04bd 281 ///
WiredHome 29:422616aa04bd 282 virtual int character(int x, int y, int value);
WiredHome 29:422616aa04bd 283
WiredHome 32:0e4f2ae512e2 284 /// get the number of colums based on the currently active font
WiredHome 32:0e4f2ae512e2 285 ///
WiredHome 32:0e4f2ae512e2 286 /// @returns number of columns.
WiredHome 32:0e4f2ae512e2 287 ///
WiredHome 32:0e4f2ae512e2 288 virtual int columns(void);
WiredHome 32:0e4f2ae512e2 289
WiredHome 32:0e4f2ae512e2 290 /// get the number of rows based on the currently active font
WiredHome 32:0e4f2ae512e2 291 ///
WiredHome 32:0e4f2ae512e2 292 /// @returns number of rows.
WiredHome 32:0e4f2ae512e2 293 ///
WiredHome 32:0e4f2ae512e2 294 virtual int rows(void);
WiredHome 32:0e4f2ae512e2 295
WiredHome 36:300f6ee0b2cf 296 /// Select a bitmap font (provided by the user) for all subsequent text
WiredHome 36:300f6ee0b2cf 297 /// rendering.
WiredHome 36:300f6ee0b2cf 298 ///
WiredHome 36:300f6ee0b2cf 299 /// This API permits selection of a special memory mapped font, which
WiredHome 36:300f6ee0b2cf 300 /// enables the presentation of many font sizes and styles, including
WiredHome 36:300f6ee0b2cf 301 /// proportional fonts.
WiredHome 32:0e4f2ae512e2 302 ///
WiredHome 32:0e4f2ae512e2 303 /// @note Tool to create the fonts is accessible from its creator
WiredHome 36:300f6ee0b2cf 304 /// available at http://www.mikroe.com.
WiredHome 36:300f6ee0b2cf 305 /// Hint: Change the data to an array of type char[].
WiredHome 32:0e4f2ae512e2 306 ///
WiredHome 32:0e4f2ae512e2 307 /// This special font array has a 4-byte header, followed by
WiredHome 32:0e4f2ae512e2 308 /// the data:
WiredHome 36:300f6ee0b2cf 309 /// \li the number of bytes per char
WiredHome 36:300f6ee0b2cf 310 /// \li the vertical size in pixels for each character
WiredHome 36:300f6ee0b2cf 311 /// \li the horizontal size in pixels for each character
WiredHome 36:300f6ee0b2cf 312 /// \li the number of bytes per vertical line (width of the array)
WiredHome 36:300f6ee0b2cf 313 /// \li the subsequent records are the font information.
WiredHome 36:300f6ee0b2cf 314 ///
WiredHome 36:300f6ee0b2cf 315 /// @param font is a pointer to a specially formed font array.
WiredHome 36:300f6ee0b2cf 316 /// NULL, or the omission of this parameter will restore the default
WiredHome 36:300f6ee0b2cf 317 /// font capability, which may use the display controllers hardware
WiredHome 36:300f6ee0b2cf 318 /// font (if available), or no font.
WiredHome 32:0e4f2ae512e2 319 /// @returns error code.
WiredHome 32:0e4f2ae512e2 320 ///
WiredHome 29:422616aa04bd 321 virtual RetCode_t set_font(const unsigned char * font = NULL);
WiredHome 32:0e4f2ae512e2 322
WiredHome 32:0e4f2ae512e2 323 protected:
WiredHome 32:0e4f2ae512e2 324
WiredHome 32:0e4f2ae512e2 325 /// Pure virtual method indicating the start of a graphics stream.
WiredHome 32:0e4f2ae512e2 326 ///
WiredHome 32:0e4f2ae512e2 327 /// This is called prior to a stream of pixel data being sent.
WiredHome 32:0e4f2ae512e2 328 /// This may cause register configuration changes in the derived
WiredHome 32:0e4f2ae512e2 329 /// class in order to prepare the hardware to accept the streaming
WiredHome 32:0e4f2ae512e2 330 /// data.
WiredHome 32:0e4f2ae512e2 331 ///
WiredHome 32:0e4f2ae512e2 332 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 333 ///
WiredHome 32:0e4f2ae512e2 334 /// @returns error code.
WiredHome 32:0e4f2ae512e2 335 ///
WiredHome 32:0e4f2ae512e2 336 virtual RetCode_t _StartGraphicsStream(void) = 0;
dreschpe 0:de9d1462a835 337
WiredHome 32:0e4f2ae512e2 338 /// Pure virtual method indicating the end of a graphics stream.
WiredHome 32:0e4f2ae512e2 339 ///
WiredHome 32:0e4f2ae512e2 340 /// This is called to conclude a stream of pixel data that was sent.
WiredHome 32:0e4f2ae512e2 341 /// This may cause register configuration changes in the derived
WiredHome 32:0e4f2ae512e2 342 /// class in order to stop the hardware from accept the streaming
WiredHome 32:0e4f2ae512e2 343 /// data.
WiredHome 32:0e4f2ae512e2 344 ///
WiredHome 32:0e4f2ae512e2 345 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 346 ///
WiredHome 32:0e4f2ae512e2 347 /// @returns error code.
WiredHome 32:0e4f2ae512e2 348 ///
WiredHome 32:0e4f2ae512e2 349 virtual RetCode_t _EndGraphicsStream(void) = 0;
WiredHome 32:0e4f2ae512e2 350
WiredHome 37:f19b7e7449dc 351 #ifdef LOCALFONT
WiredHome 37:f19b7e7449dc 352 virtual int blitbit(int x, int y, int w, int h, const char * color);
WiredHome 37:f19b7e7449dc 353 #endif
WiredHome 37:f19b7e7449dc 354
WiredHome 29:422616aa04bd 355 const unsigned char * font; ///< reference to an external font somewhere in memory
WiredHome 29:422616aa04bd 356
dreschpe 0:de9d1462a835 357 // pixel location
dreschpe 0:de9d1462a835 358 short _x;
dreschpe 0:de9d1462a835 359 short _y;
dreschpe 0:de9d1462a835 360
dreschpe 0:de9d1462a835 361 // window location
dreschpe 0:de9d1462a835 362 short _x1;
dreschpe 0:de9d1462a835 363 short _x2;
dreschpe 0:de9d1462a835 364 short _y1;
dreschpe 0:de9d1462a835 365 short _y2;
dreschpe 0:de9d1462a835 366 };
dreschpe 0:de9d1462a835 367
dreschpe 0:de9d1462a835 368 #endif
WiredHome 33:b6b710758ab3 369