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remove 4bpp vesa mode page size limit (hal)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3096
This commit is contained in:
Sebastian Strohhäcker 2008-02-08 21:25:57 +00:00
parent 6bb6bdc967
commit b7a86b482d
1 changed files with 10 additions and 20 deletions
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30
src/ints/int10_vesa.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: int10_vesa.cpp,v 1.34 2008-02-03 20:43:14 c2woody Exp $ */
/* $Id: int10_vesa.cpp,v 1.35 2008-02-08 21:25:57 c2woody Exp $ */
#include <string.h>
#include <stddef.h>
@ -147,15 +147,6 @@ foundit:
var_write(&minfo.BitsPerPixel,4);
var_write(&minfo.MemoryModel,3); //ega planar mode
modeAttributes = 0x1b; // Color, graphics, no linear buffer
if(pageSize > vga.vmemsize/4) { // this limitation is not on the real card
var_write(&minfo.ModeAttributes, modeAttributes & ~0x1);
var_write(&minfo.NumberOfImagePages,0);
} else {
var_write(&minfo.ModeAttributes, modeAttributes);
Bitu pages = ((vga.vmemsize/4) / pageSize)-1;
var_write(&minfo.NumberOfImagePages,pages);
}
break;
case M_LIN8:
pageSize = mblock->sheight * mblock->swidth;
@ -233,16 +224,15 @@ foundit:
}
var_write(&minfo.WinAAttributes,0x7); // Exists/readable/writable
if(mblock->type != M_LIN4)
if(pageSize > vga.vmemsize) {
// Mode not supported by current hardware configuration
var_write(&minfo.ModeAttributes, modeAttributes & ~0x1);
var_write(&minfo.NumberOfImagePages,0);
} else {
var_write(&minfo.ModeAttributes, modeAttributes);
Bitu pages = (vga.vmemsize / pageSize)-1;
var_write(&minfo.NumberOfImagePages,pages);
}
if(pageSize > vga.vmemsize) {
// Mode not supported by current hardware configuration
var_write(&minfo.ModeAttributes, modeAttributes & ~0x1);
var_write(&minfo.NumberOfImagePages,0);
} else {
var_write(&minfo.ModeAttributes, modeAttributes);
Bitu pages = (vga.vmemsize / pageSize)-1;
var_write(&minfo.NumberOfImagePages,pages);
}
if (mblock->type==M_TEXT) {
var_write(&minfo.WinGranularity,32);