test/graphics/writepixelarray.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <dos/dos.h>
   7 #include <intuition/intuition.h>
   8 #include <graphics/gfx.h>
   9 #include <cybergraphx/cybergraphics.h>
  10 #include <proto/exec.h>
  11 #include <proto/dos.h>
  12 #include <proto/graphics.h>
  13 #include <proto/cybergraphics.h>
  14 #include <proto/intuition.h>
  15
  16 #include <math.h>
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19
  20 #define SCREENWIDTH  300
  21 #define SCREENHEIGHT 200
  22 #define SCREENCY (SCREENHEIGHT / 2)
  23
  24 /***********************************************************************************/
  25
  26 struct IntuitionBase *IntuitionBase;
  27 struct GfxBase *GfxBase;
  28 struct Library *CyberGfxBase;
  29 struct Screen *scr;
  30 struct Window *win;
  31 struct RastPort *rp;
  32
  33 ULONG cgfx_coltab[256];
  34 UBYTE Keys[128];
  35
  36 /***********************************************************************************/
  37
  38 static void cleanup(char *msg)
  39 {
  40     if (msg)
  41     {
  42         printf("WritePixelArray: %s\n",msg);
  43     }
  44
  45     if (win) CloseWindow(win);
  46
  47     if (scr) UnlockPubScreen(0, scr);
  48
  49     if (CyberGfxBase) CloseLibrary(CyberGfxBase);
  50     if (GfxBase) CloseLibrary((struct Library *)GfxBase);
  51     if (IntuitionBase) CloseLibrary((struct Library *)IntuitionBase);
  52
  53     exit(0);
  54 }
  55
  56 /***********************************************************************************/
  57
  58 static void openlibs(void)
  59 {
  60     if (!(IntuitionBase = (struct IntuitionBase *)OpenLibrary("intuition.library", 39)))
  61     {
  62         cleanup("Can't open intuition.library V39!");
  63     }
  64
  65     if (!(GfxBase = (struct GfxBase *)OpenLibrary("graphics.library", 39)))
  66     {
  67         cleanup("Can't open graphics.library V39!");
  68     }
  69
  70     if (!(CyberGfxBase = OpenLibrary("cybergraphics.library",0)))
  71     {
  72         cleanup("Can't open cybergraphics.library!");
  73     }
  74 }
  75
  76 /***********************************************************************************/
  77
  78 static void getvisual(void)
  79 {
  80     if (!(scr = LockPubScreen(NULL)))
  81     {
  82         cleanup("Can't lock pub screen!");
  83     }
  84
  85     if (GetBitMapAttr(scr->RastPort.BitMap, BMA_DEPTH) <= 8)
  86     {
  87         cleanup("Need hi or true color screen!");
  88     }
  89 }
  90
  91 /***********************************************************************************/
  92
  93 static void makewin(void)
  94 {
  95     win = OpenWindowTags(NULL, WA_CustomScreen  , (IPTR)scr,
  96                                WA_InnerWidth    , SCREENWIDTH,
  97                                WA_InnerHeight   , SCREENHEIGHT,
  98                                WA_Title         , (IPTR)"WritePixelArray: Move mouse!",
  99                                WA_DragBar       , TRUE,
 100                                WA_DepthGadget   , TRUE,
 101                                WA_CloseGadget   , TRUE,
 102                                WA_Activate      , TRUE,
 103                                WA_IDCMP         , IDCMP_CLOSEWINDOW |
 104                                                   IDCMP_RAWKEY,
 105                                TAG_DONE);
 106
 107    if (!win) cleanup("Can't open window");
 108
 109    rp = win->RPort;
 110 }
 111
 112 /***********************************************************************************/
 113
 114 #define KC_LEFT         0x4F
 115 #define KC_RIGHT        0x4E
 116 #define KC_UP           0x4C
 117 #define KC_DOWN         0x4D
 118 #define KC_ESC          0x45
 119
 120 /***********************************************************************************/
 121
 122 static void getevents(void)
 123 {
 124     struct IntuiMessage *msg;
 125
 126     while ((msg = (struct IntuiMessage *)GetMsg(win->UserPort)))
 127     {
 128         switch(msg->Class)
 129         {
 130             case IDCMP_CLOSEWINDOW:
 131                 Keys[KC_ESC] = 1;
 132                 break;
 133
 134             case IDCMP_RAWKEY:
 135                 {
 136                     WORD code = msg->Code & ~IECODE_UP_PREFIX;
 137
 138                     Keys[code] = (code == msg->Code) ? 1 : 0;
 139
 140                 }
 141                 break;
 142
 143         }
 144         ReplyMsg((struct Message *)msg);
 145     }
 146
 147 }
 148
 149 /***********************************************************************************/
 150
 151 static void action(void)
 152 {
 153     static LONG tab[SCREENWIDTH * SCREENHEIGHT];
 154     LONG x, y;
 155     LONG ar1, ar2, ar3, ar4;
 156     LONG ag1, ag2, ag3, ag4;
 157     LONG ab1, ab2, ab3, ab4;
 158     LONG r1, r2, r3, r4;
 159     LONG g1, g2, g3, g4;
 160     LONG b1, b2, b3, b4;
 161     LONG tr1, tg1, tb1;
 162     LONG tr2, tg2, tb2;
 163     LONG tr3, tg3, tb3;
 164     LONG tr4, tg4, tb4;
 165     LONG ttr1, ttg1, ttb1;
 166     LONG ttr2, ttg2, ttb2;
 167     LONG tttr, tttg, tttb;
 168
 169     LONG col;
 170
 171     ar1 = 0xFF; ag1 = 0xFF; ab1 = 0xFF;
 172     ar2 = 0xFF; ag2 = 0x00; ab2 = 0x00;
 173     ar3 = 0x00; ag3 = 0xFF; ab3 = 0x00;
 174     ar4 = 0x00; ag4 = 0x00; ab4 = 0xFF;
 175
 176     r1 = 0xFF; g1 = 0xFF; b1 = 0xFF;
 177     r2 = 0xFF; g2 = 0x00; b2 = 0x00;
 178     r3 = 0x00; g3 = 0xFF; b3 = 0x00;
 179     r4 = 0x00; g4 = 0x00; b4 = 0xFF;
 180
 181     while(!Keys[KC_ESC])
 182     {
 183         x = scr->MouseX;
 184         if (x < 0) x = 0; else if (x >= scr->Width) x = scr->Width - 1;
 185
 186         r1 = ar1 + (ar2 - ar1) * x / (scr->Width - 1);
 187         g1 = ag1 + (ag2 - ag1) * x / (scr->Width - 1);
 188         b1 = ab1 + (ab2 - ab1) * x / (scr->Width - 1);
 189
 190         r2 = ar2 + (ar3 - ar2) * x / (scr->Width - 1);
 191         g2 = ag2 + (ag3 - ag2) * x / (scr->Width - 1);
 192         b2 = ab2 + (ab3 - ab2) * x / (scr->Width - 1);
 193
 194         r3 = ar3 + (ar4 - ar3) * x / (scr->Width - 1);
 195         g3 = ag3 + (ag4 - ag3) * x / (scr->Width - 1);
 196         b3 = ab3 + (ab4 - ab3) * x / (scr->Width - 1);
 197
 198         r4 = ar4 + (ar1 - ar4) * x / (scr->Width - 1);
 199         g4 = ag4 + (ag1 - ag4) * x / (scr->Width - 1);
 200         b4 = ab4 + (ab1 - ab4) * x / (scr->Width - 1);
 201
 202
 203         for(y = 0; y < SCREENHEIGHT; y ++)
 204         {
 205             for(x = 0; x < SCREENWIDTH; x++)
 206             {
 207                 tr1 = r1 + (r2 - r1) * x / (SCREENWIDTH - 1);
 208                 tg1 = g1 + (g2 - g1) * x / (SCREENWIDTH - 1);
 209                 tb1 = b1 + (b2 - b1) * x / (SCREENWIDTH - 1);
 210
 211                 tr2 = r3 + (r4 - r3) * x / (SCREENWIDTH - 1);
 212                 tg2 = g3 + (g4 - g3) * x / (SCREENWIDTH - 1);
 213                 tb2 = b3 + (b4 - b3) * x / (SCREENWIDTH - 1);
 214
 215                 tr3 = r1 + (r3 - r1) * y / (SCREENHEIGHT - 1);
 216                 tg3 = g1 + (g3 - g1) * y / (SCREENHEIGHT - 1);
 217                 tb3 = b1 + (b3 - b1) * y / (SCREENHEIGHT - 1);
 218
 219                 tr4 = r2 + (r4 - r2) * y / (SCREENHEIGHT - 1);
 220                 tg4 = g2 + (g4 - g2) * y / (SCREENHEIGHT - 1);
 221                 tb4 = b2 + (b4 - b2) * y / (SCREENHEIGHT - 1);
 222
 223                 ttr1 = tr1 + (tr2 - tr1) * y / (SCREENHEIGHT - 1);
 224                 ttg1 = tg1 + (tg2 - tg1) * y / (SCREENHEIGHT - 1);
 225                 ttb1 = tb1 + (tb2 - tb1) * y / (SCREENHEIGHT - 1);
 226
 227                 ttr2 = tr3 + (tr4 - tr3) * x / (SCREENWIDTH - 1);
 228                 ttg2 = tg3 + (tg4 - tg3) * x / (SCREENWIDTH - 1);
 229                 ttb2 = tb3 + (tb4 - tb3) * x / (SCREENWIDTH - 1);
 230
 231                 tttr = (ttr1 + ttr2) / 2;
 232                 tttg = (ttg1 + ttg2) / 2;
 233                 tttb = (ttb1 + ttb2) / 2;
 234
 235 #if AROS_BIG_ENDIAN
 236                 col = (tttr << 16) + (tttg << 8) + tttb;
 237 #else
 238                 col = (tttb << 24) + (tttg << 16) + (tttr << 8);
 239 #endif
 240                 //kprintf("col[%d,%d] = %08x\n", x,y,col);
 241                 tab[y * SCREENWIDTH + x] = col;
 242
 243             } /* for(y = 0; y < SCREENHEIGHT; y ++) */
 244
 245         } /* for(y = 0; y < SCREENHEIGHT; y ++) */
 246
 247         WritePixelArray(tab, 0, 0, SCREENWIDTH * sizeof(LONG),
 248                         win->RPort, win->BorderLeft, win->BorderTop, SCREENWIDTH, SCREENHEIGHT,
 249                         RECTFMT_ARGB);
 250
 251         getevents();
 252
 253     } /* while(!Keys[KC_ESC]) */
 254 }
 255
 256 /***********************************************************************************/
 257
 258 int main(void)
 259 {
 260     openlibs();
 261     getvisual();
 262     makewin();
 263     action();
 264     cleanup(0);
 265
 266     return 0; /* keep compiler happy */
 267 }
 268
 269 /***********************************************************************************/
 270