Exemple #1
0
/* Free complete structure bm (with the structure itself) */
void ws_freebitmap(struct ws_bitmap *bm) {
    my_assert(bm);

    if (bm->bitmap) {
        GrDestroyContext( (GrContext *)bm->bitmap );
    }

    free(bm);
}
Exemple #2
0
static void paint_screen(void)
{
    GrContext *grc;

    paint_board(&brd);
    paint_button_group(bgact);
    paint_board(&brdimg);
    grc = GrCreateSubContext(brdimg.x + 4, brdimg.y + 4,
			     brdimg.x + brdimg.wide - 5,
			     brdimg.y + brdimg.high - 5, grcglob, NULL);
    if (bgact == &bgp1)
        GrLoadContextFromPnm(grc, "pnmtest.ppm");
    else
        GrLoadContextFromPnm(grc, "pnmtest2.ppm");
    GrDestroyContext(grc);
    the_info(500, 215);
    drawing(400, 290, 200, 150, BROWN, DARKGRAY);
    the_title(500, 330);
    paint_foot("Hold down left mouse buttom to see a comment");
}
Exemple #3
0
int main(void)
{
    GrContext *grc;
    int wide, high, maxval;
    char s[81];
    GrEvent ev;

    /*GrSetMode( GR_default_graphics ); */
    GrSetMode(GR_width_height_color_graphics, 640, 480, 32768);
    GrEventInit();
    GrMouseDisplayCursor();
    GrQueryPnm(FIMAGEPPM, &wide, &high, &maxval);
    sprintf(s, "%s %d x %d pixels", FIMAGEPPM, wide, high);
    GrTextXY(10, 20, s, GrBlack(), GrWhite());
    GrBox(10, 40, 10+wide+1, 40+high+1, GrWhite());
    grc = GrCreateSubContext(11, 41, 11+wide-1, 41+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc, FIMAGEPPM);
    GrSaveContextToPgm(grc, FIMAGEPGM, "TestPnm");
    GrDestroyContext(grc);
    GrTextXY(10, 50+high, "Press RETURN to continue", GrBlack(), GrWhite());
    GrEventWaitKeyOrClick(&ev);

    GrClearScreen(GrBlack());
    GrQueryPnm(FIMAGEPGM, &wide, &high, &maxval);
    sprintf(s, "%s %d x %d pixels", FIMAGEPGM, wide, high);
    GrTextXY(10, 20, s, GrBlack(), GrWhite());
    GrBox(10, 40, 10+wide+1, 40+high+1, GrWhite());
    grc = GrCreateSubContext(11, 41, 11+wide-1, 41+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc,FIMAGEPGM);
    GrDestroyContext(grc);
    GrTextXY(10, 50+high, "Press RETURN to continue", GrBlack(), GrWhite());
    GrEventWaitKeyOrClick(&ev);

    GrClearScreen(GrBlack());
    GrQueryPnm(FIMAGEPBM, &wide, &high, &maxval);
    sprintf(s, "%s %d x %d pixels", FIMAGEPBM, wide, high);
    GrTextXY(10, 20, s, GrBlack(), GrWhite());
    GrBox(10, 40, 10+wide+1, 40+high+1, GrWhite());
    grc = GrCreateSubContext(11, 41, 11+wide-1, 41+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc,FIMAGEPBM);
    GrSaveContextToPbm(grc, FIMAGEPBM2, "TestPnm");
    GrDestroyContext(grc);
    GrTextXY(10, 50+high, "Press RETURN to continue", GrBlack(), GrWhite());
    GrEventWaitKeyOrClick(&ev);

    GrClearScreen(GrBlack());
    GrQueryPnm(FIMAGEPPM, &wide, &high, &maxval);
    GrBox(10, 40, 10+wide+1, 40+high+1, GrWhite());
    grc = GrCreateSubContext(11, 41, 11+wide-1, 41+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc,FIMAGEPPM);
    GrDestroyContext(grc);
    GrQueryPnm(FIMAGEPGM, &wide, &high, &maxval);
    GrBox(110, 140, 110+wide+1, 140+high+1, GrWhite());
    grc = GrCreateSubContext(111, 141, 111+wide-1, 141+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc, FIMAGEPGM);
    GrDestroyContext(grc);
    GrQueryPnm(FIMAGEPBM, &wide, &high, &maxval);
    GrBox(210, 240, 210+wide+1, 240+high+1, GrWhite());
    grc = GrCreateSubContext(211, 241, 211+wide-1, 241+high-1, NULL, NULL);
    GrLoadContextFromPnm(grc,FIMAGEPBM2);
    GrDestroyContext(grc);
    GrTextXY(10, 20, "Press RETURN to save screen", GrBlack(), GrWhite());
    GrEventWaitKeyOrClick(&ev);

    GrSaveContextToPpm(NULL, FSCREEN, "TestPnm");
    GrClearScreen(GrWhite());
    GrTextXY(10, 20, "Press RETURN to reload screen", GrWhite(), GrBlack());
    GrEventWaitKeyOrClick(&ev);

    GrLoadContextFromPnm(NULL, FSCREEN);
    GrTextXY(10, 20, "Press RETURN to end        ", GrBlack(), GrWhite());
    GrEventWaitKeyOrClick(&ev);

    GrEventUnInit();
    GrSetMode(GR_default_text);
    return 0;
}
Exemple #4
0
int main(void)
{
    GrContext *pContext;
    int sizex = 40;
    int sizey = 40;
    int x = 0;
    int y = 40;
    GrColor fcolor, bcolor;
    int k;
    GrEvent ev;

    GrSetMode(GR_default_graphics);
    GrEventInit();
    GrMouseDisplayCursor();
    /* Create a 1bpp bitmap */
    pContext = GrCreateFrameContext(GR_frameRAM1, sizex, sizey, NULL, NULL);
    /* draw something (black and white) into the bitmap */
    GrSetContext(pContext);
    GrClearContext(GrBlack());
    GrLine(0, 0, sizex-1, sizey-1, GrWhite());
    GrLine(0, sizey-1, sizex-1, 0, GrWhite());

    GrSetContext(NULL);
    fcolor = GrAllocColor(255, 0, 0);
    bcolor = GrAllocColor(0, 0, 255);
    GrTextXY(0, 0, "Type u d l r U D L R to move, 1 2 to change color, q to quit",
           GrWhite(), GrNOCOLOR);
    GrSetClipBox(0, 40, GrScreenX(), GrScreenY());

    /* Put the bitmap into the screen */
    GrBitBlt1bpp(NULL, x, y, pContext, 0, 0, sizex-1, sizey-1, fcolor, bcolor);

    while (1) {
        k = '\0';
        GrEventWait(&ev);
        if (ev.type == GREV_KEY) k = ev.p1;
        if (k == 'q') break;
        switch (k) {
            case 'u': y--; break;
            case 'd': y++; break;
            case 'l': x--; break;
            case 'r': x++; break;
            case 'U': y -= 10; break;
            case 'D': y += 10; break;
            case 'L': x -= 10; break;
            case 'R': x += 10; break;
            case '1': fcolor = GrAllocColor(255, 0, 0);
                      bcolor = GrAllocColor(0, 0, 255);
                      break;
            case '2': fcolor = GrAllocColor(0, 255, 255);
                      bcolor = GrAllocColor(255, 255, 0);
                      break;
            default:  continue;
        }
        if (x < -40) x = -40;
        if (x > GrScreenX()) x = GrScreenX();
        if (y < 0) y = 0;
        if (y > GrScreenY()) y = GrScreenY();
        GrBitBlt1bpp( NULL, x, y, pContext, 0, 0, sizex-1, sizey-1, fcolor, bcolor);
    }

    /* Destroy */
    GrDestroyContext(pContext);

    GrEventUnInit();
    GrSetMode(GR_default_text);
    return 0;
}