Ejemplo n.º 1
0
void VGA_ioport_out( WORD port, BYTE val )
{
    switch (port) {
        case 0x3c0:
           if (vga_address_3c0)
               vga_index_3c0 = val;
           else
               FIXME("Unsupported index, register 0x3c0: 0x%02x (value 0x%02x)\n",
                     vga_index_3c0, val);
           vga_address_3c0 = !vga_address_3c0;
           break;
        case 0x3c4:
           vga_index_3c4 = val;
           break;
        case 0x3c5:
          switch(vga_index_3c4) {
               case 0x04: /* Sequencer: Memory Mode Register */
                  if(vga_fb_depth == 8)
                      VGA_SetWindowStart((val & 8) ? 0 : -1);
                  else
                      FIXME("Memory Mode Register not supported in this mode.\n");
               break;
               default:
                  FIXME("Unsupported index, register 0x3c4: 0x%02x (value 0x%02x)\n",
                        vga_index_3c4, val);
           }
           break;
        case 0x3c8:
            palreg=val; palcnt=0; break;
        case 0x3c9:
            ((BYTE*)&paldat)[palcnt++]=val << 2;
            if (palcnt==3) {
                VGA_SetPalette(&paldat,palreg++,1);
                palcnt=0;
            }
            break;
        case 0x3ce:
            vga_index_3ce = val;
           break;
        case 0x3cf:
           FIXME("Unsupported index, register 0x3ce: 0x%02x (value 0x%02x)\n",
                 vga_index_3ce, val);
           break;
        case 0x3d4:
           vga_index_3d4 = val;
           break;
        case 0x3d5:
           FIXME("Unsupported index, register 0x3d4: 0x%02x (value 0x%02x)\n",
                 vga_index_3d4, val);
           break;
        default:
            FIXME("Unsupported VGA register: 0x%04x (value 0x%02x)\n", port, val);
    }
}
Ejemplo n.º 2
0
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
{
    ModeSet par;
    int     newSize;

    vga_fb_width = Xres;
    vga_fb_height = Yres;
    vga_fb_depth = Depth;
    vga_fb_offset = 0;
    vga_fb_pitch = Xres * ((Depth + 7) / 8);

    newSize = Xres * Yres * ((Depth + 7) / 8);
    if(newSize < 256 * 1024)
      newSize = 256 * 1024;

    if(vga_fb_size < newSize) {
      HeapFree(GetProcessHeap(), 0, vga_fb_data);
      vga_fb_data = HeapAlloc(GetProcessHeap(), 0, newSize);
      vga_fb_size = newSize;
    }

    if(Xres >= 640 || Yres >= 480) {
      par.Xres = Xres;
      par.Yres = Yres;
    } else {
      par.Xres = 640;
      par.Yres = 480;
    }

    VGA_SetWindowStart((Depth < 8) ? -1 : 0);

    par.Depth = (Depth < 8) ? 8 : Depth;

    MZ_RunInThread(VGA_DoSetMode, (ULONG_PTR)&par);
    return par.ret;
}
Ejemplo n.º 3
0
/**********************************************************************
 *          INT10_HandleVESA
 *
 * Handler for VESA functions (int10 function 0x4f).
 */
static void INT10_HandleVESA( CONTEXT *context )
{
    BIOSDATA *data = DOSVM_BiosData();

    switch(AL_reg(context)) {

    case 0x00: /* RETURN CONTROLLER INFORMATION */
        TRACE( "VESA RETURN CONTROLLER INFORMATION\n" );
        {
            BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
                                           context->SegEs, 
                                           context->Edi);
            INT10_FillControllerInformation( ptr );
            SET_AL( context, 0x4f );
            SET_AH( context, 0x00 ); /* 0x00 = successful 0x01 = failed */
        }
        break;

    case 0x01: /* RETURN MODE INFORMATION */
        TRACE( "VESA RETURN MODE INFORMATION %04x\n", CX_reg(context) );
        {
            struct _ModeInfoBlock *ptr = CTX_SEG_OFF_TO_LIN(context,
                                                            context->SegEs, 
                                                            context->Edi);
            SET_AL( context, 0x4f );
            if (INT10_FillModeInformation( ptr, CX_reg(context) ))
                SET_AH( context, 0x00 ); /* status: success */
            else
                SET_AH( context, 0x01 ); /* status: failed */
        }
        break;

    case 0x02: /* SET SuperVGA VIDEO MODE */
        TRACE( "Set VESA video mode %04x\n", BX_reg(context) );
        SET_AL( context, 0x4f ); /* function supported */
        if (INT10_SetVideoMode( data, BX_reg(context) ))
            SET_AH( context, 0x00 ); /* success */
        else
            SET_AH( context, 0x01 ); /* failed */
        break;

    case 0x03: /* VESA SuperVGA BIOS - GET CURRENT VIDEO MODE */
        SET_AL( context, 0x4f );
        SET_AH( context, 0x00 );
        SET_BX( context, INT10_GetHeap()->VesaCurrentMode );
        break;

    case 0x04: /* VESA SuperVGA BIOS - SAVE/RESTORE SuperVGA VIDEO STATE */
        ERR("VESA SAVE/RESTORE Video State - Not Implemented\n");
        /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
        /* maybe we should do this instead ? */
        /* AH_reg(context = 0x01;  not implemented so just fail */
        break;

    case 0x05: /* VESA SuperVGA BIOS - CPU VIDEO MEMORY CONTROL */
        /*
         * This subfunction supports only Window A (BL_reg == 0) and
         * it assumes that window granularity is 64k.
         */
        switch(BH_reg(context)) {
        case 0x00: /* select video memory window */
            SET_AL( context, 0x4f ); /* function supported */
            if(BL_reg(context) == 0) {
                VGA_SetWindowStart(DX_reg(context) * 64 * 1024);
                SET_AH( context, 0x00 ); /* status: successful */
            } else
                SET_AH( context, 0x01 ); /* status: failed */
            break;
        case 0x01: /* get video memory window */
            SET_AL( context, 0x4f ); /* function supported */
            if(BL_reg(context) == 0) {
                SET_DX( context, VGA_GetWindowStart() / 64 / 1024 );
                SET_AH( context, 0x00 ); /* status: successful */
            } else
                SET_AH( context, 0x01 ); /* status: failed */
            break;
	default:
            INT_BARF( context, 0x10 );
	}
        break;

    case 0x06: /* VESA GET/SET LOGICAL SCAN LINE LENGTH */
        ERR("VESA GET/SET LOGICAL SCAN LINE LENGTH - Not Implemented\n");
        /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
        /* maybe we should do this instead ? */
        /* AH_reg(context = 0x001; not implemented so just fail */
        break;

    case 0x07: /* GET/SET DISPLAY START */
        ERR("VESA GET/SET DISPLAY START - Not Implemented\n");
        /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
        /* maybe we should do this instead ? */
        /* AH_reg(context = 0x001; not implemented so just fail */
        break;

    case 0x08: /* GET/SET DAC PALETTE CONTROL */
        ERR("VESA GET/SET DAC PALETTE CONTROL- Not Implemented\n");
        /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
        /* maybe we should do this instead ? */
        /* AH_reg(context = 0x001; not implemented so just fail */
        break;

    case 0x09: /* SET PALETTE ENTRIES */
        FIXME("VESA Set palette entries - not implemented\n");
        break;

    case 0x0a: /* GET PROTECTED-MODE CODE */
        FIXME("VESA Get protected-mode code - not implemented\n");
        break;

    case 0x10: /* Display Power Management Extensions */
        FIXME("VESA Display Power Management Extensions - not implemented\n");
        break;

    case 0xef:  /* get video mode for hercules-compatibles   */
        /* There's no reason to really support this  */
        /* is there?....................(A.C.)       */
        TRACE("Just report the video not hercules compatible\n");
        SET_DX( context, 0xffff );
        break;

    case 0xff: /* Turn VESA ON/OFF */
        /* I don't know what to do */
        break;

    default:
        FIXME("VESA Function (0x%x) - Not Supported\n", AH_reg(context));
        break;
    }
}