A basic graphics package for the LPC4088 Display Module.

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lpc_swim.h

00001 /*
00002  * @brief Simple Windowing Interface Manager (SWIM)
00003  *
00004  * @note
00005  * Copyright(C) NXP Semiconductors, 2012
00006  * All rights reserved.
00007  *
00008  * @par
00009  * Software that is described herein is for illustrative purposes only
00010  * which provides customers with programming information regarding the
00011  * LPC products.  This software is supplied "AS IS" without any warranties of
00012  * any kind, and NXP Semiconductors and its licensor disclaim any and
00013  * all warranties, express or implied, including all implied warranties of
00014  * merchantability, fitness for a particular purpose and non-infringement of
00015  * intellectual property rights.  NXP Semiconductors assumes no responsibility
00016  * or liability for the use of the software, conveys no license or rights under any
00017  * patent, copyright, mask work right, or any other intellectual property rights in
00018  * or to any products. NXP Semiconductors reserves the right to make changes
00019  * in the software without notification. NXP Semiconductors also makes no
00020  * representation or warranty that such application will be suitable for the
00021  * specified use without further testing or modification.
00022  *
00023  * @par
00024  * Permission to use, copy, modify, and distribute this software and its
00025  * documentation is hereby granted, under NXP Semiconductors' and its
00026  * licensor's relevant copyrights in the software, without fee, provided that it
00027  * is used in conjunction with NXP Semiconductors microcontrollers.  This
00028  * copyright, permission, and disclaimer notice must appear in all copies of
00029  * this code.
00030  */
00031 
00032 #ifndef __LPC_SWIM_H_
00033 #define __LPC_SWIM_H_
00034 
00035 #include "lpc_types.h"
00036 #include "lpc_fonts.h"
00037 #include "lpc_colors.h"
00038 
00039 #if defined(__cplusplus)
00040 extern "C"
00041 {
00042 #endif
00043 
00044 /** @defgroup GUI_SWIM_SWIM Simple Windowing Interface Manager (SWIM)
00045  * @ingroup GUI_SWIM
00046  * This package provides the core SWIM capabilities such as
00047  * Windows initialization and validity checks, Color support for
00048  * background/primary/fill pens, graphics primatives, and Window
00049  * deallocation.
00050  * @{
00051  */
00052 
00053 /**
00054  * @brief Structure used to store information about a specific window
00055  */
00056 typedef struct {
00057     int32_t xpsize; /* Physical (absolute) horizontal screen size */
00058     int32_t ypsize; /* Physical (absolute) vertical screen size */
00059     int32_t xpmin;  /* Physical left edge of window */
00060     int32_t ypmin;  /* Physical top edge of window */
00061     int32_t xpmax;  /* Physical right edge of window */
00062     int32_t ypmax;  /* Physical bottom edge of window */
00063     int32_t bdsize; /* Size of window frame in pixels */
00064     int32_t xvsize; /* Virtual horizontal window size */
00065     int32_t yvsize; /* Virtual vertical window size */
00066     int32_t xpvmin; /* Physical left edge of draw window */
00067     int32_t ypvmin; /* Physical top edge of draw window */
00068     int32_t xpvmax; /* Physical right edge of draw window */
00069     int32_t ypvmax; /* Physical bottom edge of draw window */
00070     int32_t xvpos;  /* Next virtual 'x' position of output */
00071     int32_t yvpos;  /* Next virtual 'y' position of output */
00072     COLOR_T pen;    /* Pen/text color */
00073     COLOR_T bkg;    /* Window/text background color */
00074     COLOR_T fill;   /* Fill/border color */
00075     FONT_T *font;   /* Selected font structure */
00076     int32_t tfont;  /* Transparent font background flag when true */
00077     COLOR_T *fb;    /* Frame buffer address for the physical display */
00078     int32_t winused;    /* Window used flag */
00079     BOOL_32 tfonts; /* Transparent font background flag */
00080 } SWIM_WINDOW_T;
00081 
00082 /**
00083  * @brief   Puts a pixel at the virtual X, Y coordinate in the window
00084  * @param   win : Pointer to window data structure
00085  * @param   x1  : Virtual X position of pixel
00086  * @param   y1  : Virtual Y position of pixel
00087  * @return  Nothing
00088  * @note    The pixel will not be displayed if the pixel exceeds the window
00089  * virtual size. Pixel positions below 0 should not be used with
00090  * this function.
00091  */
00092 void swim_put_pixel(SWIM_WINDOW_T *win,
00093                     int32_t x1,
00094                     int32_t y1);
00095 
00096 /**
00097  * @brief   Draw a line in the virtual window with clipping
00098  * @param   win : Pointer to window data structure
00099  * @param   x1  : Virtual X position of X line start
00100  * @param   y1  : Virtual Y position of Y line start
00101  * @param   x2  : Virtual X position of X line end
00102  * @param   y2  : Virtual Y position of Y line end
00103  * @return  Nothing
00104  */
00105 void swim_put_line(SWIM_WINDOW_T *win,
00106                    int32_t x1,
00107                    int32_t y1,
00108                    int32_t x2,
00109                    int32_t y2);
00110 
00111 /**
00112  * @brief   Draw a diamond in the virtual window
00113  * @param   win : Pointer to window data structure
00114  * @param   x   : Virtual X position of the diamond
00115  * @param   y   : Virtual Y position of the diamond
00116  * @param   rx  : Radius for horizontal
00117  * @param   ry  : Radius for vertical
00118  * @return  Nothing
00119  */
00120 void swim_put_diamond(SWIM_WINDOW_T *win,
00121                       int32_t x,
00122                       int32_t y,
00123                       int32_t rx,
00124                       int32_t ry);
00125 
00126 /**
00127  * @brief   Draws a circle in the virtual window
00128  * @param   win     : Pointer to window data structure
00129  * @param   cx      : Virtual center X position of the circle
00130  * @param   cy      : Virtual center Y position of the circle
00131  * @param   radius  : Radius of the circle
00132  * @param   Filled  : Flag to indicate whether the circle should be filled
00133  * @return  Nothing
00134  */
00135 void swim_put_circle(SWIM_WINDOW_T *win,
00136                      int32_t cx,
00137                      int32_t cy,
00138                      int32_t radius,
00139                      int32_t Filled);
00140 
00141 /**
00142  * @brief   Fills the draw area of the display with the selected color
00143  * @param   win     : Pointer to window data structure
00144  * @param   colr    : Color to place in the window
00145  * @return  Nothing
00146  */
00147 void swim_clear_screen(SWIM_WINDOW_T *win,
00148                        COLOR_T colr);
00149 
00150 /**
00151  * @brief   Place a box with corners (X1, Y1) and (X2, Y2)
00152  * @param   win : Pointer to window data structure
00153  * @param   x1  : Virtual left position of box
00154  * @param   y1  : Virtual upper position of box
00155  * @param   x2  : Virtual right position of box
00156  * @param   y2  : Virtual lower position of box
00157  * @return  Nothing
00158  * @note    Use pen color for edges and fill color for center.
00159  */
00160 void swim_put_box(SWIM_WINDOW_T *win,
00161                   int32_t x1,
00162                   int32_t y1,
00163                   int32_t x2,
00164                   int32_t y2);
00165 
00166 /**
00167  * @brief   Initializes a window and the default values for the window
00168  * @param   win             : Pointer to window data structure
00169  * @param   xsize           : Physical horizontal dimension of the display
00170  * @param   ysize           : Physical vertical dimension of the display
00171  * @param   fbaddr          : Address of the display's frame buffer
00172  * @param   xwin_min        : Physical window left coordinate
00173  * @param   ywin_min        : Physical window top coordinate
00174  * @param   xwin_max        : Physical window right coordinate
00175  * @param   ywin_max        : Physical window bottom coordinate
00176  * @param   border_width    : Width of the window border in pixels
00177  * @param   pcolor          : Pen color
00178  * @param   bkcolor         : Background color
00179  * @param   fcolor          : Fill color
00180  * @return  true if the window was initialized correctly, otherwise false
00181  * @note    This function must be called prior to any other window function. The
00182  * window will be drawn in the background color.
00183  */
00184 BOOL_32 swim_window_open(SWIM_WINDOW_T *win,
00185                          int32_t xsize,
00186                          int32_t ysize,
00187                          COLOR_T *fbaddr,
00188                          int32_t xwin_min,
00189                          int32_t ywin_min,
00190                          int32_t xwin_max,
00191                          int32_t ywin_max,
00192                          int32_t border_width,
00193                          COLOR_T pcolor,
00194                          COLOR_T bkcolor,
00195                          COLOR_T fcolor);
00196 
00197 /**
00198  * @brief   Initializes a window without clearing it
00199  * @param   win             s: Pointer to window data structure
00200  * @param   xsize           : Physical horizontal dimension of the display
00201  * @param   ysize           : Physical vertical dimension of the display
00202  * @param   fbaddr          : Address of the display's frame buffer
00203  * @param   xwin_min        : Physical window left coordinate
00204  * @param   ywin_min        : Physical window top coordinate
00205  * @param   xwin_max        : Physical window right coordinate
00206  * @param   ywin_max        : Physical window bottom coordinate
00207  * @param   border_width    : Width of the window border in pixels
00208  * @param   pcolor          : Pen color
00209  * @param   bkcolor         : Background color
00210  * @param   fcolor          : Fill color
00211  * @return  true if the window was initialized correctly, otherwise false
00212  * @note    This function must be called prior to any other window function.
00213  */
00214 BOOL_32 swim_window_open_noclear(SWIM_WINDOW_T *win,
00215                                  int32_t xsize,
00216                                  int32_t ysize,
00217                                  COLOR_T *fbaddr,
00218                                  int32_t xwin_min,
00219                                  int32_t ywin_min,
00220                                  int32_t xwin_max,
00221                                  int32_t ywin_max,
00222                                  int32_t border_width,
00223                                  COLOR_T pcolor,
00224                                  COLOR_T bkcolor,
00225                                  COLOR_T fcolor);
00226 
00227 /**
00228  * @brief   Deallocates a window
00229  * @param   win : Pointer to window data structure
00230  * @return  Nothing
00231  * @note    This function does nothing.
00232  */
00233 void swim_window_close(SWIM_WINDOW_T *win);
00234 
00235 /**
00236  * @brief   Sets the pen color
00237  * @param   win         : Pointer to window data structure
00238  * @param   pen_color   : New pen color
00239  * @return  Nothing
00240  */
00241 void swim_set_pen_color(SWIM_WINDOW_T *win,
00242                         COLOR_T pen_color);
00243 
00244 /**
00245  * @brief   Sets the fill color
00246  * @param   win         : Pointer to window data structure
00247  * @param   fill_color  : New fill color
00248  * @return  Nothing
00249  */
00250 void swim_set_fill_color(SWIM_WINDOW_T *win,
00251                          COLOR_T fill_color);
00252 
00253 /**
00254  * @brief   Sets the color used for backgrounds
00255  * @param   win         : Pointer to window data structure
00256  * @param   bkg_color   : New background color
00257  * @return  Nothing
00258  */
00259 void swim_set_bkg_color(SWIM_WINDOW_T *win,
00260                         COLOR_T bkg_color);
00261 
00262 /**
00263  * @brief   Sets the font to be used for all new windows
00264  * @param   def_font    : New default font
00265  * @return  Nothing
00266  */
00267 void swim_set_default_font(const FONT_T* def_font);
00268 
00269 /**
00270  * @brief   Get the virtual window horizontal size
00271  * @param   win : Pointer to window data structure
00272  * @return  The virtual window horizontal size
00273  */
00274 int32_t swim_get_horizontal_size(SWIM_WINDOW_T *win);
00275 
00276 /**
00277  * @brief   Get the virtual window vertical size
00278  * @param   win : Pointer to window data structure
00279  * @return  The virtual window vertical size
00280  */
00281 int32_t swim_get_vertical_size(SWIM_WINDOW_T *win);
00282 
00283 #if defined(SWIM_DRIVER_INDIRECT)
00284 /**
00285  * @brief   Puts a pixel at the physical X, Y coordinate.
00286  *
00287  * @param   win     : Pointer to window data structure
00288  * @param   x1      : Physical X coordinate of pixel
00289  * @param   y1      : Physical Y coordinate of pixel
00290  * @param   color   : Value to write to pixel
00291  * @return  Nothing
00292  * @note    This function must be implemented out side the
00293  *          swim library (in application).
00294  */
00295 STATIC INLINE void swim_put_pixel_physical(SWIM_WINDOW_T *win,
00296                     int32_t x1,
00297                     int32_t y1,
00298                     COLOR_T color);
00299 
00300 /**
00301  * @brief   Read value of pixel at the physical X, Y coordinate.
00302  *
00303  * Note that this function must be implemented by the application!
00304  * If not defined, there will be a link error.
00305  *
00306  * @param   win     : Pointer to window data structure
00307  * @param   x1      : Physical X coordinate of pixel
00308  * @param   y1      : Physical Y coordinate of pixel
00309  * @param   color   : Value to write to pixel
00310  * @return  Nothing
00311  * @note    This function must be implemented out side the
00312  *          swim library (in application).
00313  */
00314 STATIC INLINE COLOR_T swim_get_pixel_physical(SWIM_WINDOW_T *win, int32_t x1, int32_t y1);
00315 
00316 #else /* Using frame buffers */
00317 /**
00318  * @brief   Read value of pixel at the physical X, Y coordinate from Frame Buffer.
00319  *
00320  * @param   win     : Pointer to window data structure
00321  * @param   x1      : Physical X coordinate of pixel
00322  * @param   y1      : Physical Y coordinate of pixel
00323  * @param   color   : Value to write to pixel
00324  * @return  Nothing
00325  */
00326 STATIC INLINE COLOR_T swim_get_pixel_physical(SWIM_WINDOW_T *win, int32_t x1, int32_t y1)
00327 {
00328     return *(win->fb + x1 + (y1 * win->xpsize));
00329 }
00330 
00331 /**
00332  * @brief   Writes pixel color to Frame buffer at the physical X, Y coordinate
00333  *
00334  * @param   win     : Pointer to window data structure
00335  * @param   x1      : Physical X coordinate of pixel
00336  * @param   y1      : Physical Y coordinate of pixel
00337  * @param   color   : Value to write to pixel
00338  * @return  Nothing
00339  */
00340 STATIC INLINE void swim_put_pixel_physical(SWIM_WINDOW_T *win, int32_t x1, int32_t y1, COLOR_T color)
00341 {
00342     *(win->fb + x1 + (y1 * win->xpsize)) = color;
00343 }
00344 #endif
00345 
00346 #if defined(__cplusplus)
00347 }
00348 #endif
00349 
00350 /**
00351  * @}
00352  */
00353 
00354 #endif /* __LPC_SWIM_H_ */
00355