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Make sure the VESA mode number is between 256 and 511 inclusive.
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2f18ee9d47
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=231842
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@ -1311,7 +1311,9 @@ vesa_set_mode(video_adapter_t *adp, int mode)
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if (!(info.vi_flags & V_INFO_GRAPHICS))
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info.vi_flags &= ~V_INFO_LINEAR;
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if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0)))
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if ((info.vi_flags & V_INFO_LINEAR) != 0)
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mode |= 0x4000;
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if (vesa_bios_set_mode(mode))
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return (1);
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/* Palette format is reset by the above VBE function call. */
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@ -1329,7 +1331,7 @@ vesa_set_mode(video_adapter_t *adp, int mode)
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#if VESA_DEBUG > 0
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printf("VESA: mode set!\n");
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#endif
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vesa_adp->va_mode = mode;
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vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */
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vesa_adp->va_flags &= ~V_ADP_COLOR;
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vesa_adp->va_flags |=
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(info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
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