2DGL_DrawGIF.c

00001 /*********************************************************************
00002 *                SEGGER Microcontroller GmbH                         *
00003 *        Solutions for real time microcontroller applications        *
00004 **********************************************************************
00005 *                                                                    *
00006 *        (c) 1996 - 2018  SEGGER Microcontroller GmbH                *
00007 *                                                                    *
00008 *        Internet: www.segger.com    Support:  support@segger.com    *
00009 *                                                                    *
00010 **********************************************************************
00011 
00012 ** emWin V5.48 - Graphical user interface for embedded applications **
00013 All  Intellectual Property rights  in the Software belongs to  SEGGER.
00014 emWin is protected by  international copyright laws.  Knowledge of the
00015 source code may not be used to write a similar product.  This file may
00016 only be used in accordance with the following terms:
00017 
00018 The software  has been licensed to  Cypress Semiconductor Corporation,
00019 whose registered  office is situated  at 198 Champion Ct. San Jose, CA 
00020 95134 USA  solely for the  purposes of creating  libraries for Cypress
00021 PSoC3 and  PSoC5 processor-based devices,  sublicensed and distributed
00022 under  the  terms  and  conditions  of  the  Cypress  End User License
00023 Agreement.
00024 Full source code is available at: www.segger.com
00025 
00026 We appreciate your understanding and fairness.
00027 ----------------------------------------------------------------------
00028 Licensing information
00029 Licensor:                 SEGGER Microcontroller Systems LLC
00030 Licensed to:              Cypress Semiconductor Corp, 198 Champion Ct., San Jose, CA 95134, USA
00031 Licensed SEGGER software: emWin
00032 License number:           GUI-00319
00033 License model:            Services and License Agreement, signed June 10th, 2009
00034 Licensed platform:        Any Cypress platform (Initial targets are: PSoC3, PSoC5)
00035 ----------------------------------------------------------------------
00036 Support and Update Agreement (SUA)
00037 SUA period:               2009-06-12 - 2022-07-27
00038 Contact to extend SUA:    sales@segger.com
00039 ----------------------------------------------------------------------
00040 File        : 2DGL_DrawGIF.c
00041 Purpose     : Shows how to render GIF images
00042 Requirements: WindowManager - ( )
00043               MemoryDevices - ( )
00044               AntiAliasing  - ( )
00045               VNC-Server    - ( )
00046               PNG-Library   - ( )
00047               TrueTypeFonts - ( )
00048 ----------------------------------------------------------------------
00049 */
00050 
00051 #include "GUI.h"
00052 
00053 /*********************************************************************
00054 *
00055 *       Defines
00056 *
00057 **********************************************************************
00058 */
00059 //
00060 // Recommended memory to run the sample with adequate performance
00061 //
00062 #define RECOMMENDED_MEMORY (1024L * 20)
00063 
00064 /*******************************************************************
00065 *
00066 *       Static data
00067 *
00068 ********************************************************************
00069 */
00070 static unsigned const char _acImage0[] = {
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00115   0x00, 0x21, 0xFF, 0x0B, 0x47, 0x49, 0x46, 0x43, 0x4F, 0x4E, 0x6E, 0x62, 0x31, 0x2E, 0x30, 0x02, 0x06, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00,
00116   0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00, 0x0A,
00117   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x01, 0x00, 0x02, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
00118   0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x3B, 0x00
00119 };
00120 
00121 /*******************************************************************
00122 *
00123 *       Static functions
00124 *
00125 ********************************************************************
00126 */
00127 /*******************************************************************
00128 *
00129 *       _ShowMovie
00130 *
00131 * Function description
00132 *   Shows the contents of a GIF file as movie
00133 */
00134 static void _ShowMovie(const char * pFile, int FileSize) {
00135   GUI_GIF_IMAGE_INFO ImageInfo = {0}; // Info structure of one particular GIF image of the GIF file
00136   GUI_GIF_INFO       GifInfo   = {0}; // Info structure of GIF file
00137   int                i;
00138   int                j;
00139   int                XPos;
00140   int                YPos;
00141 
00142   //
00143   // Display sample information
00144   //
00145   GUI_SetFont(&GUI_Font8x16);
00146   GUI_ClearRect(0, 40, 319, 59);
00147   GUI_DispStringHCenterAt("Show complete GIF file as movie", 160, 40);
00148   //
00149   // Show movie
00150   //
00151   GUI_ClearRect(0, 60, 319, 239);                                 // Clear the image area
00152   GUI_GIF_GetInfo(pFile, FileSize, &GifInfo);                     // Get GIF info structure
00153   XPos = (GifInfo.xSize > 320) ?  0 : 160 - (GifInfo.xSize / 2);
00154   YPos = (GifInfo.ySize > 180) ? 60 : 150 - (GifInfo.ySize / 2);
00155   for (i = 0; i < 2; i++) {                                       // Show the complete GIF 2 times ...
00156     for (j = 0; j < GifInfo.NumImages; j++) {
00157       GUI_GIF_DrawSub(pFile, FileSize, XPos, YPos, j);            // Draw sub image
00158       GUI_GIF_GetImageInfo(pFile, FileSize, &ImageInfo, j);       // Get sub image information
00159       GUI_Delay(ImageInfo.Delay ? ImageInfo.Delay * 10 : 100);    // Use the Delay member of the ImageInfo structure for waiting a while
00160     }
00161     GUI_Delay(2000);                                              // Wait a while
00162   }
00163 }
00164 
00165 /*******************************************************************
00166 *
00167 *       _ShowSubImages
00168 *
00169 * Function description
00170 *   Shows all sub images of a GIF file side by side
00171 */
00172 static void _ShowSubImages(const char * pFile, int FileSize) {
00173   GUI_GIF_INFO       GifInfo   = {0}; // Info structure of GIF file
00174   int                j;
00175   int                XPos;
00176   int                YPos;
00177   //
00178   // Display sample information
00179   //
00180   GUI_SetFont(&GUI_Font8x16);
00181   GUI_ClearRect(0, 40, 319, 59);
00182   GUI_DispStringHCenterAt("Show all sub images of a GIF file", 160, 40);
00183   //
00184   // Show sub images
00185   //
00186   GUI_ClearRect(0, 60, 319, 239);                                 // Clear the image area
00187   GUI_GIF_GetInfo(pFile, FileSize, &GifInfo);                     // Get GIF info structure
00188   XPos = 160 - GifInfo.xSize * GifInfo.NumImages / 2;
00189   YPos = (GifInfo.ySize > 180) ? 60 : 150 - (GifInfo.ySize / 2);
00190   for (j = 0; j < GifInfo.NumImages; j++) {
00191     char acNumber[3] = "#";
00192     acNumber[1] = '0' + j;
00193     GUI_DispStringHCenterAt(acNumber, XPos + GifInfo.xSize / 2, 90);
00194     GUI_GIF_DrawSub(pFile, FileSize, XPos, YPos, j);              // Draw sub image
00195     XPos += GifInfo.xSize;
00196   }
00197   GUI_Delay(4000);                                                // Wait a while
00198 }
00199 
00200 /*******************************************************************
00201 *
00202 *       _ShowComments
00203 *
00204 * Function description
00205 *   Shows all comments of a GIF file
00206 */
00207 static void _ShowComments(const char * pFile, int FileSize) {
00208   GUI_RECT Rect          = {80, 100, 239, 199};
00209   char     acBuffer[256] = {0};
00210   int      CommentCnt;
00211 
00212   //
00213   // Display sample information
00214   //
00215   GUI_SetFont(&GUI_Font8x16);
00216   GUI_ClearRect(0, 40, 319, 59);
00217   GUI_DispStringHCenterAt("Show all comments of a GIF file", 160, 40);
00218   //
00219   // Show all comments
00220   //
00221   GUI_ClearRect(0, 60, 319, 239);                                 // Clear the image area
00222   CommentCnt = 0;
00223   while (!GUI_GIF_GetComment(pFile, FileSize, (unsigned char *)acBuffer, sizeof(acBuffer), CommentCnt)) {
00224     char acNumber[12] = "Comment #0:";
00225     acNumber[9] = '0' + CommentCnt;
00226     GUI_DispStringHCenterAt(acNumber, 160, 80);
00227     GUI_SetBkColor(GUI_BLACK);
00228     GUI_SetColor(GUI_WHITE);
00229     GUI_ClearRectEx(&Rect);
00230     GUI_DispStringInRectWrap(acBuffer, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER, GUI_WRAPMODE_WORD);
00231     GUI_SetBkColor(GUI_WHITE);
00232     GUI_SetColor(GUI_BLACK);
00233     GUI_Delay(4000);                                              // Wait a while
00234     CommentCnt++;
00235   }
00236 }
00237 
00238 /*******************************************************************
00239 *
00240 *       Public code
00241 *
00242 ********************************************************************
00243 */
00244 /*******************************************************************
00245 *
00246 *       MainTask
00247 */
00248 void MainTask(void) {
00249   GUI_Init();
00250   //
00251   // Check if recommended memory for the sample is available
00252   //
00253   if (GUI_ALLOC_GetNumFreeBytes() < RECOMMENDED_MEMORY) {
00254     GUI_ErrorOut("Not enough memory available."); 
00255     return;
00256   }
00257   GUI_SetBkColor(GUI_WHITE);
00258   GUI_Clear();
00259   GUI_SetColor(GUI_BLACK);
00260   GUI_SetFont(&GUI_Font24_ASCII);
00261   GUI_DispStringHCenterAt("DrawGIF - Sample", 160, 5);
00262   while (1) {
00263     _ShowMovie    ((char *)_acImage0, sizeof(_acImage0));
00264     _ShowSubImages((char *)_acImage0, sizeof(_acImage0));
00265     _ShowComments ((char *)_acImage0, sizeof(_acImage0));
00266   }
00267 }
00268 
00269 /*************************** End of file ****************************/
00270