shithub: qk1

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cmrecalc: diagonal >= 0 fits the "brightness only" criteria just as well

--- a/colormatrix.c

+++ b/colormatrix.c

@@ -49,7 +49,7 @@

 	for(i = 0; i < 4*4; i++)

 		cm[i] = CM(t[i]);

 	cmkind = (

-		cm[4*0] >= CM(1) &&

+		cm[4*0] >= CM(0) &&

 		cm[4*0+0] == cm[4*1+1] &&

 		cm[4*1+1] == cm[4*2+2] &&

 		                  cm[4*0+1] == 0 && cm[4*0+2] == 0 && cm[4*0+3] == 0 &&

--- a/colormatrix.h

+++ b/colormatrix.h

@@ -1,6 +1,6 @@

 /* cmkind values for optimized special-casing */

 #define CmIdent 0 /* identity (== 1) */

-#define CmBright 1 /* only brightness is changed (> 1) */

+#define CmBright 1 /* only brightness is changed (>= 0) */

 #define CM(v) ((v)*(1<<12))