Kerry Martin / RA8875

KSM edits to RA8875

Dependents:   Liz_Test_Code

GraphicsDisplay.h@122:79e431f98fa9, 2016-05-17 (annotated)

Committer:
WiredHome
Date:
Tue May 17 22:33:06 2016 +0000
Revision:
122:79e431f98fa9
Parent:
115:c9862fd0c689
Child:
125:7a0b70f56550
Added support for JPEG rendering

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"
WiredHome 115:c9862fd0c689 18 #include "GraphicsDisplayJPEG.h"
dreschpe 0:de9d1462a835 19
WiredHome 32:0e4f2ae512e2 20 /// The GraphicsDisplay class
WiredHome 32:0e4f2ae512e2 21 ///
WiredHome 32:0e4f2ae512e2 22 /// This graphics display class supports both graphics and text operations.
WiredHome 32:0e4f2ae512e2 23 /// Typically, a subclass is derived from this which has localizations to
WiredHome 32:0e4f2ae512e2 24 /// adapt to a specific hardware platform (e.g. a display controller chip),
WiredHome 32:0e4f2ae512e2 25 /// that overrides methods in here to either add more capability or perhaps
WiredHome 32:0e4f2ae512e2 26 /// to improve performance, by leveraging specific hardware capabilities.
WiredHome 32:0e4f2ae512e2 27 ///
WiredHome 32:0e4f2ae512e2 28 class GraphicsDisplay : public TextDisplay
WiredHome 32:0e4f2ae512e2 29 {
WiredHome 32:0e4f2ae512e2 30 public:
WiredHome 32:0e4f2ae512e2 31 /// The constructor
dreschpe 0:de9d1462a835 32 GraphicsDisplay(const char* name);
WiredHome 32:0e4f2ae512e2 33
WiredHome 104:8d1d3832a215 34 //~GraphicsDisplay();
WiredHome 104:8d1d3832a215 35
WiredHome 32:0e4f2ae512e2 36 /// Draw a pixel in the specified color.
WiredHome 32:0e4f2ae512e2 37 ///
WiredHome 32:0e4f2ae512e2 38 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 39 ///
WiredHome 76:c981284eb513 40 /// @param[in] x is the horizontal offset to this pixel.
WiredHome 76:c981284eb513 41 /// @param[in] y is the vertical offset to this pixel.
WiredHome 76:c981284eb513 42 /// @param[in] color defines the color for the pixel.
WiredHome 32:0e4f2ae512e2 43 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 44 ///
WiredHome 37:f19b7e7449dc 45 virtual RetCode_t pixel(loc_t x, loc_t y, color_t color) = 0;
WiredHome 32:0e4f2ae512e2 46
WiredHome 41:2956a0a221e5 47 /// Write a stream of pixels to the display.
WiredHome 41:2956a0a221e5 48 ///
WiredHome 41:2956a0a221e5 49 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 50 ///
WiredHome 76:c981284eb513 51 /// @param[in] p is a pointer to a color_t array to write.
WiredHome 76:c981284eb513 52 /// @param[in] count is the number of pixels to write.
WiredHome 76:c981284eb513 53 /// @param[in] x is the horizontal position on the display.
WiredHome 76:c981284eb513 54 /// @param[in] y is the vertical position on the display.
WiredHome 41:2956a0a221e5 55 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 56 ///
WiredHome 41:2956a0a221e5 57 virtual RetCode_t pixelStream(color_t * p, uint32_t count, loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 58
WiredHome 41:2956a0a221e5 59 /// Get a pixel from the display.
WiredHome 41:2956a0a221e5 60 ///
WiredHome 41:2956a0a221e5 61 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 62 ///
WiredHome 76:c981284eb513 63 /// @param[in] x is the horizontal offset to this pixel.
WiredHome 76:c981284eb513 64 /// @param[in] y is the vertical offset to this pixel.
WiredHome 41:2956a0a221e5 65 /// @returns the pixel. see @color_t
WiredHome 41:2956a0a221e5 66 ///
WiredHome 41:2956a0a221e5 67 virtual color_t getPixel(loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 68
WiredHome 41:2956a0a221e5 69 /// Get a stream of pixels from the display.
WiredHome 41:2956a0a221e5 70 ///
WiredHome 41:2956a0a221e5 71 /// @note this method must be supported in the derived class.
WiredHome 41:2956a0a221e5 72 ///
WiredHome 76:c981284eb513 73 /// @param[out] p is a pointer to a color_t array to accept the stream.
WiredHome 76:c981284eb513 74 /// @param[in] count is the number of pixels to read.
WiredHome 76:c981284eb513 75 /// @param[in] x is the horizontal offset to this pixel.
WiredHome 76:c981284eb513 76 /// @param[in] y is the vertical offset to this pixel.
WiredHome 41:2956a0a221e5 77 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 78 ///
WiredHome 41:2956a0a221e5 79 virtual RetCode_t getPixelStream(color_t * p, uint32_t count, loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 80
WiredHome 32:0e4f2ae512e2 81 /// get the screen width in pixels
WiredHome 32:0e4f2ae512e2 82 ///
WiredHome 32:0e4f2ae512e2 83 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 84 ///
WiredHome 32:0e4f2ae512e2 85 /// @returns screen width in pixels.
WiredHome 32:0e4f2ae512e2 86 ///
WiredHome 32:0e4f2ae512e2 87 virtual uint16_t width() = 0;
WiredHome 32:0e4f2ae512e2 88
WiredHome 32:0e4f2ae512e2 89 /// get the screen height in pixels
WiredHome 32:0e4f2ae512e2 90 ///
WiredHome 32:0e4f2ae512e2 91 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 92 ///
WiredHome 32:0e4f2ae512e2 93 /// @returns screen height in pixels.
WiredHome 32:0e4f2ae512e2 94 ///
WiredHome 32:0e4f2ae512e2 95 virtual uint16_t height() = 0;
WiredHome 32:0e4f2ae512e2 96
WiredHome 32:0e4f2ae512e2 97 /// Prepare the controller to write binary data to the screen by positioning
WiredHome 32:0e4f2ae512e2 98 /// the memory cursor.
WiredHome 32:0e4f2ae512e2 99 ///
WiredHome 32:0e4f2ae512e2 100 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 101 ///
WiredHome 76:c981284eb513 102 /// @param[in] x is the horizontal position in pixels (from the left edge)
WiredHome 76:c981284eb513 103 /// @param[in] y is the vertical position in pixels (from the top edge)
WiredHome 32:0e4f2ae512e2 104 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 105 ///
WiredHome 37:f19b7e7449dc 106 virtual RetCode_t SetGraphicsCursor(loc_t x, loc_t y) = 0;
WiredHome 32:0e4f2ae512e2 107
WiredHome 41:2956a0a221e5 108 /// Prepare the controller to read binary data from the screen by positioning
WiredHome 41:2956a0a221e5 109 /// the memory read cursor.
WiredHome 41:2956a0a221e5 110 ///
WiredHome 76:c981284eb513 111 /// @param[in] x is the horizontal position in pixels (from the left edge)
WiredHome 76:c981284eb513 112 /// @param[in] y is the vertical position in pixels (from the top edge)
WiredHome 41:2956a0a221e5 113 /// @returns success/failure code. @see RetCode_t.
WiredHome 41:2956a0a221e5 114 ///
WiredHome 41:2956a0a221e5 115 virtual RetCode_t SetGraphicsCursorRead(loc_t x, loc_t y) = 0;
WiredHome 41:2956a0a221e5 116
WiredHome 32:0e4f2ae512e2 117 /// Draw a filled rectangle in the specified color
WiredHome 32:0e4f2ae512e2 118 ///
WiredHome 32:0e4f2ae512e2 119 /// @note As a side effect, this changes the current
WiredHome 32:0e4f2ae512e2 120 /// foreground color for subsequent operations.
WiredHome 32:0e4f2ae512e2 121 ///
WiredHome 32:0e4f2ae512e2 122 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 123 ///
WiredHome 76:c981284eb513 124 /// @param[in] x1 is the horizontal start of the line.
WiredHome 76:c981284eb513 125 /// @param[in] y1 is the vertical start of the line.
WiredHome 76:c981284eb513 126 /// @param[in] x2 is the horizontal end of the line.
WiredHome 76:c981284eb513 127 /// @param[in] y2 is the vertical end of the line.
WiredHome 76:c981284eb513 128 /// @param[in] color defines the foreground color.
WiredHome 76:c981284eb513 129 /// @param[in] fillit is optional to NOFILL the rectangle. default is FILL.
WiredHome 32:0e4f2ae512e2 130 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 131 ///
WiredHome 37:f19b7e7449dc 132 virtual RetCode_t fillrect(loc_t x1, loc_t y1, loc_t x2, loc_t y2,
WiredHome 32:0e4f2ae512e2 133 color_t color, fill_t fillit = FILL) = 0;
WiredHome 32:0e4f2ae512e2 134
WiredHome 32:0e4f2ae512e2 135
WiredHome 32:0e4f2ae512e2 136 virtual RetCode_t WriteCommand(unsigned char command, unsigned int data = 0xFFFF) = 0;
WiredHome 32:0e4f2ae512e2 137 virtual RetCode_t WriteData(unsigned char data) = 0;
WiredHome 32:0e4f2ae512e2 138
WiredHome 32:0e4f2ae512e2 139 /// Set the window, which controls where items are written to the screen.
WiredHome 32:0e4f2ae512e2 140 ///
WiredHome 32:0e4f2ae512e2 141 /// When something hits the window width, it wraps back to the left side
WiredHome 32:0e4f2ae512e2 142 /// and down a row. If the initial write is outside the window, it will
WiredHome 32:0e4f2ae512e2 143 /// be captured into the window when it crosses a boundary.
WiredHome 32:0e4f2ae512e2 144 ///
WiredHome 111:efe436c43aba 145 /// @param[in] r is the rect_t rect to define the window.
WiredHome 111:efe436c43aba 146 /// @returns success/failure code. @see RetCode_t.
WiredHome 111:efe436c43aba 147 ///
WiredHome 111:efe436c43aba 148 virtual RetCode_t window(rect_t r);
WiredHome 111:efe436c43aba 149
WiredHome 111:efe436c43aba 150 /// Set the window, which controls where items are written to the screen.
WiredHome 111:efe436c43aba 151 ///
WiredHome 111:efe436c43aba 152 /// When something hits the window width, it wraps back to the left side
WiredHome 111:efe436c43aba 153 /// and down a row. If the initial write is outside the window, it will
WiredHome 111:efe436c43aba 154 /// be captured into the window when it crosses a boundary.
WiredHome 111:efe436c43aba 155 ///
WiredHome 114:dbfb996bfbf3 156 /// @note if no parameters are provided, it restores the window to full screen.
WiredHome 114:dbfb996bfbf3 157 ///
WiredHome 76:c981284eb513 158 /// @param[in] x is the left edge in pixels.
WiredHome 76:c981284eb513 159 /// @param[in] y is the top edge in pixels.
WiredHome 76:c981284eb513 160 /// @param[in] w is the window width in pixels.
WiredHome 76:c981284eb513 161 /// @param[in] h is the window height in pixels.
WiredHome 32:0e4f2ae512e2 162 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 163 ///
WiredHome 114:dbfb996bfbf3 164 virtual RetCode_t window(loc_t x = 0, loc_t y = 0, dim_t w = (dim_t)-1, dim_t h = (dim_t)-1);
WiredHome 32:0e4f2ae512e2 165
WiredHome 111:efe436c43aba 166 /// method to set the window region to the full screen.
WiredHome 111:efe436c43aba 167 ///
WiredHome 111:efe436c43aba 168 /// This restores the 'window' to the full screen, so that
WiredHome 111:efe436c43aba 169 /// other operations (@see cls) would clear the whole screen.
WiredHome 111:efe436c43aba 170 ///
WiredHome 111:efe436c43aba 171 /// @returns success/failure code. @see RetCode_t.
WiredHome 111:efe436c43aba 172 ///
WiredHome 111:efe436c43aba 173 virtual RetCode_t WindowMax(void);
WiredHome 111:efe436c43aba 174
WiredHome 32:0e4f2ae512e2 175 /// Clear the screen.
WiredHome 32:0e4f2ae512e2 176 ///
WiredHome 32:0e4f2ae512e2 177 /// The behavior is to clear the whole screen.
WiredHome 32:0e4f2ae512e2 178 ///
WiredHome 76:c981284eb513 179 /// @param[in] layers is ignored, but supports maintaining the same
WiredHome 61:8f3153bf0baa 180 /// API for the graphics layer.
WiredHome 32:0e4f2ae512e2 181 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 182 ///
WiredHome 61:8f3153bf0baa 183 virtual RetCode_t cls(uint16_t layers = 0);
WiredHome 32:0e4f2ae512e2 184
WiredHome 32:0e4f2ae512e2 185 /// method to put a single color pixel to the screen.
WiredHome 32:0e4f2ae512e2 186 ///
WiredHome 32:0e4f2ae512e2 187 /// This method may be called as many times as necessary after
WiredHome 32:0e4f2ae512e2 188 /// @see _StartGraphicsStream() is called, and it should be followed
WiredHome 32:0e4f2ae512e2 189 /// by _EndGraphicsStream.
WiredHome 32:0e4f2ae512e2 190 ///
WiredHome 76:c981284eb513 191 /// @param[in] pixel is a color value to be put on the screen.
WiredHome 79:544eb4964795 192 /// @returns success/failure code. @see RetCode_t.
WiredHome 32:0e4f2ae512e2 193 ///
WiredHome 55:dfbabef7003e 194 virtual RetCode_t _putp(color_t pixel);
WiredHome 32:0e4f2ae512e2 195
WiredHome 79:544eb4964795 196 /// method to fill a region.
WiredHome 79:544eb4964795 197 ///
WiredHome 79:544eb4964795 198 /// This method fills a region with the specified color.
WiredHome 79:544eb4964795 199 ///
WiredHome 79:544eb4964795 200 /// @param[in] x is the left-edge of the region.
WiredHome 79:544eb4964795 201 /// @param[in] y is the top-edge of the region.
WiredHome 79:544eb4964795 202 /// @param[in] w specifies the width of the region.
WiredHome 79:544eb4964795 203 /// @param[in] h specifies the height of the region.
WiredHome 79:544eb4964795 204 /// @returns success/failure code. @see RetCode_t.
WiredHome 79:544eb4964795 205 ///
WiredHome 109:7b94f06f085b 206 virtual RetCode_t fill(loc_t x, loc_t y, dim_t w, dim_t h, color_t color);
WiredHome 76:c981284eb513 207
WiredHome 79:544eb4964795 208
WiredHome 109:7b94f06f085b 209 virtual RetCode_t blit(loc_t x, loc_t y, dim_t w, dim_t h, const int * color);
WiredHome 29:422616aa04bd 210
WiredHome 101:e0aad446094a 211 /// This method returns the width in pixels of the chosen character
WiredHome 101:e0aad446094a 212 /// from the previously selected external font.
WiredHome 101:e0aad446094a 213 ///
WiredHome 101:e0aad446094a 214 /// @param[in] c is the character of interest.
WiredHome 106:c80828f5dea4 215 /// @param[in, out] width is a pointer to where the width will be stored.
WiredHome 101:e0aad446094a 216 /// This parameter is NULL tested and will only be written if not null
WiredHome 101:e0aad446094a 217 /// which is convenient if you only want the height.
WiredHome 106:c80828f5dea4 218 /// @param[in, out] height is a pointer to where the height will be stored.
WiredHome 101:e0aad446094a 219 /// This parameter is NULL tested and will only be written if not null
WiredHome 101:e0aad446094a 220 /// which is convenient if you only want the width.
WiredHome 101:e0aad446094a 221 /// @returns a pointer to the raw character data or NULL if not found.
WiredHome 101:e0aad446094a 222 ///
WiredHome 109:7b94f06f085b 223 virtual const uint8_t * getCharMetrics(const unsigned char c, dim_t * width, dim_t * height);
WiredHome 101:e0aad446094a 224
WiredHome 29:422616aa04bd 225 /// This method transfers one character from the external font data
WiredHome 29:422616aa04bd 226 /// to the screen.
WiredHome 29:422616aa04bd 227 ///
WiredHome 101:e0aad446094a 228 /// The font being used has already been set with the SelectUserFont
WiredHome 101:e0aad446094a 229 /// API.
WiredHome 101:e0aad446094a 230 ///
WiredHome 29:422616aa04bd 231 /// @note the font data is in a special format as generate by
WiredHome 95:ef538bd687c0 232 /// the mikroe font creator.
WiredHome 29:422616aa04bd 233 /// See http://www.mikroe.com/glcd-font-creator/
WiredHome 29:422616aa04bd 234 ///
WiredHome 76:c981284eb513 235 /// @param[in] x is the horizontal pixel coordinate
WiredHome 76:c981284eb513 236 /// @param[in] y is the vertical pixel coordinate
WiredHome 98:ecebed9b80b2 237 /// @param[in] c is the character to render
WiredHome 98:ecebed9b80b2 238 /// @returns how far the cursor should advance to the right in pixels.
WiredHome 98:ecebed9b80b2 239 /// @returns zero if the character could not be rendered.
WiredHome 29:422616aa04bd 240 ///
WiredHome 109:7b94f06f085b 241 virtual int fontblit(loc_t x, loc_t y, const unsigned char c);
WiredHome 29:422616aa04bd 242
WiredHome 32:0e4f2ae512e2 243 /// This method returns the color value from a palette.
WiredHome 32:0e4f2ae512e2 244 ///
WiredHome 32:0e4f2ae512e2 245 /// This method accepts a pointer to a Bitmap color palette, which
WiredHome 32:0e4f2ae512e2 246 /// is a table in memory composed of RGB Quad values (r, g, b, 0),
WiredHome 32:0e4f2ae512e2 247 /// and an index into that table. It then extracts the color information
WiredHome 32:0e4f2ae512e2 248 /// and downsamples it to a color_t value which it returns.
WiredHome 32:0e4f2ae512e2 249 ///
WiredHome 32:0e4f2ae512e2 250 /// @note This method probably has very little value outside of
WiredHome 32:0e4f2ae512e2 251 /// the internal methods for reading BMP files.
WiredHome 32:0e4f2ae512e2 252 ///
WiredHome 76:c981284eb513 253 /// @param[in] colorPaletteArray is the handle to the color palette array to use.
WiredHome 76:c981284eb513 254 /// @param[in] index is the index into the color palette.
WiredHome 32:0e4f2ae512e2 255 /// @returns the color in color_t format.
WiredHome 32:0e4f2ae512e2 256 ///
WiredHome 73:f22a18707b5e 257 color_t RGBQuadToRGB16(RGBQUAD * colorPaletteArray, uint16_t index);
WiredHome 32:0e4f2ae512e2 258
WiredHome 41:2956a0a221e5 259 /// This method converts a 16-bit color value into a 24-bit RGB Quad.
WiredHome 41:2956a0a221e5 260 ///
WiredHome 76:c981284eb513 261 /// @param[in] c is the 16-bit color. @see color_t.
WiredHome 41:2956a0a221e5 262 /// @returns an RGBQUAD value. @see RGBQUAD
WiredHome 41:2956a0a221e5 263 ///
WiredHome 41:2956a0a221e5 264 RGBQUAD RGB16ToRGBQuad(color_t c);
WiredHome 41:2956a0a221e5 265
WiredHome 42:7cbdfd2bbfc5 266 /// This method attempts to render a specified graphics image file at
WiredHome 42:7cbdfd2bbfc5 267 /// the specified screen location.
WiredHome 42:7cbdfd2bbfc5 268 ///
WiredHome 42:7cbdfd2bbfc5 269 /// This supports several variants of the following file types:
WiredHome 42:7cbdfd2bbfc5 270 /// \li Bitmap file format,
WiredHome 42:7cbdfd2bbfc5 271 /// \li Icon file format.
WiredHome 42:7cbdfd2bbfc5 272 ///
WiredHome 42:7cbdfd2bbfc5 273 /// @note The specified image width and height, when adjusted for the
WiredHome 42:7cbdfd2bbfc5 274 /// x and y origin, must fit on the screen, or the image will not
WiredHome 42:7cbdfd2bbfc5 275 /// be shown (it does not clip the image).
WiredHome 42:7cbdfd2bbfc5 276 ///
WiredHome 42:7cbdfd2bbfc5 277 /// @note The file extension is tested, and if it ends in a supported
WiredHome 42:7cbdfd2bbfc5 278 /// format, the appropriate handler is called to render that image.
WiredHome 42:7cbdfd2bbfc5 279 ///
WiredHome 76:c981284eb513 280 /// @param[in] x is the horizontal pixel coordinate
WiredHome 76:c981284eb513 281 /// @param[in] y is the vertical pixel coordinate
WiredHome 76:c981284eb513 282 /// @param[in] FileName refers to the fully qualified path and file on
WiredHome 42:7cbdfd2bbfc5 283 /// a mounted file system.
WiredHome 42:7cbdfd2bbfc5 284 /// @returns success or error code.
WiredHome 42:7cbdfd2bbfc5 285 ///
WiredHome 42:7cbdfd2bbfc5 286 RetCode_t RenderImageFile(loc_t x, loc_t y, const char *FileName);
WiredHome 42:7cbdfd2bbfc5 287
WiredHome 115:c9862fd0c689 288 /// This method reads a disk file that is in jpeg format and
WiredHome 115:c9862fd0c689 289 /// puts it on the screen.
WiredHome 115:c9862fd0c689 290 ///
WiredHome 115:c9862fd0c689 291 /// @param[in] x is the horizontal pixel coordinate
WiredHome 115:c9862fd0c689 292 /// @param[in] y is the vertical pixel coordinate
WiredHome 115:c9862fd0c689 293 /// @param[in] Name_JPG is the filename on the mounted file system.
WiredHome 115:c9862fd0c689 294 /// @returns success or error code.
WiredHome 115:c9862fd0c689 295 ///
WiredHome 115:c9862fd0c689 296 RetCode_t RenderJpegFile(loc_t x, loc_t y, const char *Name_JPG);
WiredHome 115:c9862fd0c689 297
WiredHome 31:c72e12cd5c67 298 /// This method reads a disk file that is in bitmap format and
WiredHome 31:c72e12cd5c67 299 /// puts it on the screen.
WiredHome 31:c72e12cd5c67 300 ///
WiredHome 36:300f6ee0b2cf 301 /// Supported formats:
WiredHome 112:325ca91bc03d 302 /// \li 1-bit color format (2 colors)
WiredHome 112:325ca91bc03d 303 /// \li 4-bit color format (16 colors)
WiredHome 112:325ca91bc03d 304 /// \li 8-bit color format (256 colors)
WiredHome 36:300f6ee0b2cf 305 /// \li 16-bit color format (65k colors)
WiredHome 112:325ca91bc03d 306 /// \li 24-bit color format (16M colors)
WiredHome 36:300f6ee0b2cf 307 /// \li compression: no.
WiredHome 36:300f6ee0b2cf 308 ///
WiredHome 36:300f6ee0b2cf 309 /// @note This is a slow operation, typically due to the use of
WiredHome 36:300f6ee0b2cf 310 /// the file system, and partially because bmp files
WiredHome 31:c72e12cd5c67 311 /// are stored from the bottom up, and the memory is written
WiredHome 32:0e4f2ae512e2 312 /// from the top down; as a result, it constantly 'seeks'
WiredHome 32:0e4f2ae512e2 313 /// on the file system for the next row of information.
WiredHome 31:c72e12cd5c67 314 ///
WiredHome 34:c99ec28fac66 315 /// As a performance test, a sample picture was timed. A family picture
WiredHome 34:c99ec28fac66 316 /// was converted to Bitmap format; shrunk to 352 x 272 pixels and save
WiredHome 34:c99ec28fac66 317 /// in 8-bit color format. The resulting file size was 94.5 KByte.
WiredHome 34:c99ec28fac66 318 /// The SPI port interface was set to 20 MHz.
WiredHome 34:c99ec28fac66 319 /// The original bitmap rendering software was purely in software,
WiredHome 34:c99ec28fac66 320 /// pushing 1 pixel at a time to the write function, which did use SPI
WiredHome 34:c99ec28fac66 321 /// hardware (not pin wiggling) to transfer commands and data to the
WiredHome 34:c99ec28fac66 322 /// display. Then, the driver was improved to leverage the capability
WiredHome 34:c99ec28fac66 323 /// of the derived display driver. As a final check, instead of the
WiredHome 34:c99ec28fac66 324 /// [known slow] local file system, a randomly chosen USB stick was
WiredHome 34:c99ec28fac66 325 /// used. The performance results are impressive (but depend on the
WiredHome 34:c99ec28fac66 326 /// listed factors).
WiredHome 34:c99ec28fac66 327 ///
WiredHome 35:7dcab9e3ab25 328 /// \li 34 seconds, LocalFileSystem, Software Rendering
WiredHome 35:7dcab9e3ab25 329 /// \li 9 seconds, LocalFileSystem, Hardware Rending for RA8875
WiredHome 35:7dcab9e3ab25 330 /// \li 3 seconds, MSCFileSystem, Hardware Rendering for RA8875
WiredHome 34:c99ec28fac66 331 ///
WiredHome 76:c981284eb513 332 /// @param[in] x is the horizontal pixel coordinate
WiredHome 76:c981284eb513 333 /// @param[in] y is the vertical pixel coordinate
WiredHome 76:c981284eb513 334 /// @param[in] Name_BMP is the filename on the mounted file system.
WiredHome 31:c72e12cd5c67 335 /// @returns success or error code.
WiredHome 31:c72e12cd5c67 336 ///
WiredHome 37:f19b7e7449dc 337 RetCode_t RenderBitmapFile(loc_t x, loc_t y, const char *Name_BMP);
WiredHome 31:c72e12cd5c67 338
WiredHome 42:7cbdfd2bbfc5 339
WiredHome 42:7cbdfd2bbfc5 340 /// This method reads a disk file that is in ico format and
WiredHome 42:7cbdfd2bbfc5 341 /// puts it on the screen.
WiredHome 42:7cbdfd2bbfc5 342 ///
WiredHome 42:7cbdfd2bbfc5 343 /// Reading the disk is slow, but a typical icon file is small
WiredHome 42:7cbdfd2bbfc5 344 /// so it should be ok.
WiredHome 42:7cbdfd2bbfc5 345 ///
WiredHome 42:7cbdfd2bbfc5 346 /// @note An Icon file can have more than one icon in it. This
WiredHome 42:7cbdfd2bbfc5 347 /// implementation only processes the first image in the file.
WiredHome 42:7cbdfd2bbfc5 348 ///
WiredHome 76:c981284eb513 349 /// @param[in] x is the horizontal pixel coordinate
WiredHome 76:c981284eb513 350 /// @param[in] y is the vertical pixel coordinate
WiredHome 76:c981284eb513 351 /// @param[in] Name_ICO is the filename on the mounted file system.
WiredHome 42:7cbdfd2bbfc5 352 /// @returns success or error code.
WiredHome 42:7cbdfd2bbfc5 353 ///
WiredHome 42:7cbdfd2bbfc5 354 RetCode_t RenderIconFile(loc_t x, loc_t y, const char *Name_ICO);
WiredHome 42:7cbdfd2bbfc5 355
WiredHome 42:7cbdfd2bbfc5 356
WiredHome 29:422616aa04bd 357 /// prints one character at the specified coordinates.
WiredHome 29:422616aa04bd 358 ///
WiredHome 29:422616aa04bd 359 /// This will print the character at the specified pixel coordinates.
WiredHome 29:422616aa04bd 360 ///
WiredHome 76:c981284eb513 361 /// @param[in] x is the horizontal offset in pixels.
WiredHome 76:c981284eb513 362 /// @param[in] y is the vertical offset in pixels.
WiredHome 76:c981284eb513 363 /// @param[in] value is the character to print.
WiredHome 29:422616aa04bd 364 /// @returns number of pixels to index to the right if a character was printed, 0 otherwise.
WiredHome 29:422616aa04bd 365 ///
WiredHome 29:422616aa04bd 366 virtual int character(int x, int y, int value);
WiredHome 29:422616aa04bd 367
WiredHome 32:0e4f2ae512e2 368 /// get the number of colums based on the currently active font
WiredHome 32:0e4f2ae512e2 369 ///
WiredHome 32:0e4f2ae512e2 370 /// @returns number of columns.
WiredHome 32:0e4f2ae512e2 371 ///
WiredHome 32:0e4f2ae512e2 372 virtual int columns(void);
WiredHome 32:0e4f2ae512e2 373
WiredHome 32:0e4f2ae512e2 374 /// get the number of rows based on the currently active font
WiredHome 32:0e4f2ae512e2 375 ///
WiredHome 32:0e4f2ae512e2 376 /// @returns number of rows.
WiredHome 32:0e4f2ae512e2 377 ///
WiredHome 32:0e4f2ae512e2 378 virtual int rows(void);
WiredHome 32:0e4f2ae512e2 379
WiredHome 98:ecebed9b80b2 380 /// Select a User Font for all subsequent text.
WiredHome 98:ecebed9b80b2 381 ///
WiredHome 98:ecebed9b80b2 382 /// @note Tool to create the fonts is accessible from its creator
WiredHome 98:ecebed9b80b2 383 /// available at http://www.mikroe.com.
WiredHome 98:ecebed9b80b2 384 /// For version 1.2.0.0, choose the "Export for TFT and new GLCD"
WiredHome 98:ecebed9b80b2 385 /// format.
WiredHome 98:ecebed9b80b2 386 ///
WiredHome 98:ecebed9b80b2 387 /// @param[in] font is a pointer to a specially formed font resource.
WiredHome 98:ecebed9b80b2 388 /// @returns error code.
WiredHome 98:ecebed9b80b2 389 ///
WiredHome 98:ecebed9b80b2 390 virtual RetCode_t SelectUserFont(const uint8_t * font = NULL);
WiredHome 98:ecebed9b80b2 391
WiredHome 32:0e4f2ae512e2 392
WiredHome 32:0e4f2ae512e2 393 protected:
WiredHome 32:0e4f2ae512e2 394
WiredHome 32:0e4f2ae512e2 395 /// Pure virtual method indicating the start of a graphics stream.
WiredHome 32:0e4f2ae512e2 396 ///
WiredHome 32:0e4f2ae512e2 397 /// This is called prior to a stream of pixel data being sent.
WiredHome 32:0e4f2ae512e2 398 /// This may cause register configuration changes in the derived
WiredHome 32:0e4f2ae512e2 399 /// class in order to prepare the hardware to accept the streaming
WiredHome 32:0e4f2ae512e2 400 /// data.
WiredHome 32:0e4f2ae512e2 401 ///
WiredHome 32:0e4f2ae512e2 402 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 403 ///
WiredHome 32:0e4f2ae512e2 404 /// @returns error code.
WiredHome 32:0e4f2ae512e2 405 ///
WiredHome 32:0e4f2ae512e2 406 virtual RetCode_t _StartGraphicsStream(void) = 0;
dreschpe 0:de9d1462a835 407
WiredHome 32:0e4f2ae512e2 408 /// Pure virtual method indicating the end of a graphics stream.
WiredHome 32:0e4f2ae512e2 409 ///
WiredHome 32:0e4f2ae512e2 410 /// This is called to conclude a stream of pixel data that was sent.
WiredHome 32:0e4f2ae512e2 411 /// This may cause register configuration changes in the derived
WiredHome 32:0e4f2ae512e2 412 /// class in order to stop the hardware from accept the streaming
WiredHome 32:0e4f2ae512e2 413 /// data.
WiredHome 32:0e4f2ae512e2 414 ///
WiredHome 32:0e4f2ae512e2 415 /// @note this method must be supported in the derived class.
WiredHome 32:0e4f2ae512e2 416 ///
WiredHome 32:0e4f2ae512e2 417 /// @returns error code.
WiredHome 32:0e4f2ae512e2 418 ///
WiredHome 32:0e4f2ae512e2 419 virtual RetCode_t _EndGraphicsStream(void) = 0;
WiredHome 32:0e4f2ae512e2 420
WiredHome 42:7cbdfd2bbfc5 421 /// Protected method to render an image given a file handle and
WiredHome 42:7cbdfd2bbfc5 422 /// coordinates.
WiredHome 42:7cbdfd2bbfc5 423 ///
WiredHome 76:c981284eb513 424 /// @param[in] x is the horizontal pixel coordinate
WiredHome 76:c981284eb513 425 /// @param[in] y is the vertical pixel coordinate
WiredHome 76:c981284eb513 426 /// @param[in] w is the image width restriction, or zero to permit full image width.
WiredHome 76:c981284eb513 427 /// @param[in] h is the image height restriction, or zero to permit full image height.
WiredHome 76:c981284eb513 428 /// @param[in] fileOffset is the offset into the file where the image data starts
WiredHome 76:c981284eb513 429 /// @param[in] Image is the filename stream already opened for the data.
WiredHome 42:7cbdfd2bbfc5 430 /// @returns success or error code.
WiredHome 42:7cbdfd2bbfc5 431 ///
WiredHome 42:7cbdfd2bbfc5 432 RetCode_t _RenderBitmap(loc_t x, loc_t y, uint32_t fileOffset, FILE * Image);
WiredHome 42:7cbdfd2bbfc5 433
WiredHome 115:c9862fd0c689 434 private:
WiredHome 122:79e431f98fa9 435
WiredHome 122:79e431f98fa9 436 /// Analyze the jpeg data in preparation for decompression.
WiredHome 122:79e431f98fa9 437 ///
WiredHome 115:c9862fd0c689 438 JRESULT jd_prepare(JDEC * jd, uint16_t(* infunc)(JDEC * jd, uint8_t * buffer, uint16_t bufsize), void * pool, uint16_t poolsize, void * filehandle);
WiredHome 115:c9862fd0c689 439
WiredHome 122:79e431f98fa9 440 /// Decompress the jpeg and render it.
WiredHome 122:79e431f98fa9 441 ///
WiredHome 115:c9862fd0c689 442 JRESULT jd_decomp(JDEC * jd, uint16_t(* outfunct)(JDEC * jd, void * stream, JRECT * rect), uint8_t scale);
WiredHome 115:c9862fd0c689 443
WiredHome 122:79e431f98fa9 444 /// helper function to read data from the file system
WiredHome 122:79e431f98fa9 445 ///
WiredHome 115:c9862fd0c689 446 uint16_t privInFunc(JDEC * jd, uint8_t * buff, uint16_t ndata);
WiredHome 115:c9862fd0c689 447
WiredHome 122:79e431f98fa9 448 /// helper function to read data from the file system
WiredHome 122:79e431f98fa9 449 ///
WiredHome 115:c9862fd0c689 450 uint16_t getJpegData(JDEC * jd, uint8_t *buff, uint16_t ndata);
WiredHome 115:c9862fd0c689 451
WiredHome 122:79e431f98fa9 452 /// helper function to write data to the display
WiredHome 122:79e431f98fa9 453 ///
WiredHome 115:c9862fd0c689 454 uint16_t privOutFunc(JDEC * jd, void * bitmap, JRECT * rect);
WiredHome 115:c9862fd0c689 455
WiredHome 115:c9862fd0c689 456 JRESULT mcu_output (
WiredHome 115:c9862fd0c689 457 JDEC * jd, /* Pointer to the decompressor object */
WiredHome 115:c9862fd0c689 458 uint16_t (* outfunc)(JDEC * jd, void * stream, JRECT * rect), /* RGB output function */
WiredHome 115:c9862fd0c689 459 uint16_t x, /* MCU position in the image (left of the MCU) */
WiredHome 115:c9862fd0c689 460 uint16_t y /* MCU position in the image (top of the MCU) */
WiredHome 115:c9862fd0c689 461 );
WiredHome 115:c9862fd0c689 462
WiredHome 115:c9862fd0c689 463 int16_t bitext ( /* >=0: extracted data, <0: error code */
WiredHome 115:c9862fd0c689 464 JDEC * jd, /* Pointer to the decompressor object */
WiredHome 115:c9862fd0c689 465 uint16_t nbit /* Number of bits to extract (1 to 11) */
WiredHome 115:c9862fd0c689 466 );
WiredHome 115:c9862fd0c689 467
WiredHome 115:c9862fd0c689 468 int16_t huffext ( /* >=0: decoded data, <0: error code */
WiredHome 115:c9862fd0c689 469 JDEC * jd, /* Pointer to the decompressor object */
WiredHome 115:c9862fd0c689 470 const uint8_t * hbits, /* Pointer to the bit distribution table */
WiredHome 115:c9862fd0c689 471 const uint16_t * hcode, /* Pointer to the code word table */
WiredHome 115:c9862fd0c689 472 const uint8_t * hdata /* Pointer to the data table */
WiredHome 115:c9862fd0c689 473 );
WiredHome 115:c9862fd0c689 474
WiredHome 115:c9862fd0c689 475 JRESULT restart (
WiredHome 115:c9862fd0c689 476 JDEC * jd, /* Pointer to the decompressor object */
WiredHome 115:c9862fd0c689 477 uint16_t rstn /* Expected restert sequense number */
WiredHome 115:c9862fd0c689 478 );
WiredHome 115:c9862fd0c689 479
WiredHome 115:c9862fd0c689 480 JRESULT mcu_load (
WiredHome 115:c9862fd0c689 481 JDEC * jd /* Pointer to the decompressor object */
WiredHome 115:c9862fd0c689 482 );
WiredHome 115:c9862fd0c689 483
WiredHome 122:79e431f98fa9 484
WiredHome 115:c9862fd0c689 485 protected:
WiredHome 109:7b94f06f085b 486 /// Pure virtual method to write a boolean stream to the display.
WiredHome 109:7b94f06f085b 487 ///
WiredHome 109:7b94f06f085b 488 /// This takes a bit stream in memory and using the current color settings
WiredHome 109:7b94f06f085b 489 /// it will stream it to the display. Along the way, each bit is translated
WiredHome 109:7b94f06f085b 490 /// to either the foreground or background color value and then that pixel
WiredHome 109:7b94f06f085b 491 /// is pushed onward.
WiredHome 109:7b94f06f085b 492 ///
WiredHome 109:7b94f06f085b 493 /// This is similar, but different, to the @ref pixelStream API, which is
WiredHome 109:7b94f06f085b 494 /// given a stream of color values.
WiredHome 109:7b94f06f085b 495 ///
WiredHome 109:7b94f06f085b 496 /// @param[in] x is the horizontal position on the display.
WiredHome 109:7b94f06f085b 497 /// @param[in] y is the vertical position on the display.
WiredHome 109:7b94f06f085b 498 /// @param[in] w is the width of the rectangular region to fill.
WiredHome 109:7b94f06f085b 499 /// @param[in] h is the height of the rectangular region to fill.
WiredHome 109:7b94f06f085b 500 /// @param[in] boolStream is the inline memory image from which to extract
WiredHome 109:7b94f06f085b 501 /// the bitstream.
WiredHome 109:7b94f06f085b 502 /// @returns success/failure code. See @ref RetCode_t.
WiredHome 109:7b94f06f085b 503 ///
WiredHome 109:7b94f06f085b 504 virtual RetCode_t booleanStream(loc_t x, loc_t y, dim_t w, dim_t h, const uint8_t * boolStream) = 0;
WiredHome 109:7b94f06f085b 505
WiredHome 109:7b94f06f085b 506
WiredHome 29:422616aa04bd 507 const unsigned char * font; ///< reference to an external font somewhere in memory
WiredHome 29:422616aa04bd 508
dreschpe 0:de9d1462a835 509 // pixel location
dreschpe 0:de9d1462a835 510 short _x;
dreschpe 0:de9d1462a835 511 short _y;
dreschpe 0:de9d1462a835 512
WiredHome 111:efe436c43aba 513 rect_t windowrect; ///< window commands are held here for speed of access
dreschpe 0:de9d1462a835 514 };
dreschpe 0:de9d1462a835 515
dreschpe 0:de9d1462a835 516 #endif
WiredHome 33:b6b710758ab3 517