1 /* 2 Copyright 1999, Be Incorporated. All Rights Reserved. 3 This file may be used under the terms of the Be Sample Code License. 4 5 Other authors: 6 Rudolf Cornelissen 4/2003-11/2004 7 */ 8 9 #define MODULE_BIT 0x20000000 10 11 #include "acc_std.h" 12 13 status_t SET_CURSOR_SHAPE(uint16 width, uint16 height, uint16 hot_x, uint16 hot_y, uint8 *andMask, uint8 *xorMask) 14 { 15 LOG(4,("SET_CURSOR_SHAPE: width %d, height %d, hot_x %d, hot_y %d\n", 16 width, height, hot_x, hot_y)); 17 18 if ((width != 16) || (height != 16)) 19 { 20 return B_ERROR; 21 } 22 else if ((hot_x >= width) || (hot_y >= height)) 23 { 24 return B_ERROR; 25 } 26 else 27 { 28 nm_crtc_cursor_define(andMask,xorMask); 29 30 /* Update cursor variables appropriately. */ 31 si->cursor.width = width; 32 si->cursor.height = height; 33 si->cursor.hot_x = hot_x; 34 si->cursor.hot_y = hot_y; 35 } 36 37 return B_OK; 38 } 39 40 /* Move the cursor to the specified position on the desktop, taking account of virtual/dual issues */ 41 void MOVE_CURSOR(uint16 x, uint16 y) 42 { 43 uint16 hds = si->dm.h_display_start; /* the current horizontal starting pixel */ 44 uint16 vds = si->dm.v_display_start; /* the current vertical starting line */ 45 uint16 h_adjust; 46 uint16 h_display = si->dm.timing.h_display; /* local copy needed for flatpanel */ 47 uint16 v_display = si->dm.timing.v_display; /* local copy needed for flatpanel */ 48 49 /* clamp cursor to display */ 50 if (x >= si->dm.virtual_width) x = si->dm.virtual_width - 1; 51 if (y >= si->dm.virtual_height) y = si->dm.virtual_height - 1; 52 53 /* store, for our info */ 54 si->cursor.x = x; 55 si->cursor.y = y; 56 57 /* setting up minimum amount to scroll not needed: 58 * Neomagic cards can always do pixelprecise panning */ 59 h_adjust = 0x00; 60 61 /* if internal panel is active correct visible screensize! */ 62 if (nm_general_output_read() & 0x02) 63 { 64 if (h_display > si->ps.panel_width) h_display = si->ps.panel_width; 65 if (v_display > si->ps.panel_height) v_display = si->ps.panel_height; 66 } 67 68 /* adjust h/v_display_start to move cursor onto screen */ 69 if (x >= (h_display + hds)) 70 { 71 hds = ((x - h_display) + 1 + h_adjust) & ~h_adjust; 72 /* make sure we stay within the display! */ 73 if ((hds + h_display) > si->dm.virtual_width) 74 hds -= (h_adjust + 1); 75 } 76 else if (x < hds) 77 hds = x & ~h_adjust; 78 79 if (y >= (v_display + vds)) 80 vds = y - v_display + 1; 81 else if (y < vds) 82 vds = y; 83 84 /* reposition the desktop _and_ the overlay on the display if required */ 85 if ((hds!=si->dm.h_display_start) || (vds!=si->dm.v_display_start)) 86 { 87 MOVE_DISPLAY(hds,vds); 88 nm_bes_move_overlay(); 89 } 90 91 /* put cursor in correct physical position */ 92 if (x > (hds + si->cursor.hot_x)) x -= hds + si->cursor.hot_x; 93 else x = 0; 94 if (y > (vds + si->cursor.hot_y)) y -= vds + si->cursor.hot_y; 95 else y = 0; 96 97 /* position the cursor on the display */ 98 nm_crtc_cursor_position(x,y); 99 } 100 101 void SHOW_CURSOR(bool is_visible) 102 { 103 /* record for our info */ 104 si->cursor.is_visible = is_visible; 105 106 if (is_visible) 107 nm_crtc_cursor_show(); 108 else 109 nm_crtc_cursor_hide(); 110 } 111