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xserver-multidpi
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EDID 1.4: Allow for gamma definition in extension blocks. 

Section 3.6.3, Table 3.13: Display Transfer Characteristics (Gamma)
This commit is contained in:
Adam Jackson 2007-12-28 16:12:11 -05:00
parent 861ee38817
commit f1f43caf7e
2 changed files with 6 additions and 2 deletions
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2
hw/xfree86/ddc/edid.h
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@ -129,7 +129,7 @@
#define BPC _BPC(GET(D_INPUT))
#define _DIGITAL_INTERFACE(x) (x & 0x0F)
#define DIGITAL_INTERFACE _DIGITAL_INTERFACE(GET(D_INPUT))
#define _GAMMA(x) (x == 0xff ? 1.0 : ((x + 100.0)/100.0))
#define _GAMMA(x) (x == 0xff ? 0.0 : ((x + 100.0)/100.0))
#define GAMMA _GAMMA(GET(D_GAMMA))
#define HSIZE_MAX GET(D_HSIZE)
#define VSIZE_MAX GET(D_VSIZE)

6
hw/xfree86/ddc/print_edid.c
View File

@ -191,7 +191,11 @@ print_display(int scrnIndex, struct disp_features *disp,
xf86DrvMsg(scrnIndex, X_INFO, "Indeterminate output size\n");
}
xf86DrvMsg(scrnIndex, X_INFO, "Gamma: %.2f\n", disp->gamma);
if (!gamma && v->revision >= 1.4)
xf86DrvMsg(scrnIndex, X_INFO, "Gamma defined in extension block\n");
else
xf86DrvMsg(scrnIndex, X_INFO, "Gamma: %.2f\n", disp->gamma);
print_dpms_features(scrnIndex, disp, v);
print_whitepoint(scrnIndex, disp);
}