clear

[16.git] / 16 / x_ / mxcg.asm

diff --git a/16/x_/mxcg.asm b/16/x_/mxcg.asm
deleted file mode 100755 (executable)
index 42163d7..0000000
--- a/16/x_/mxcg.asm
+++ /dev/null
@@ -1,69 +0,0 @@
-;-----------------------------------------------------------\r
-;\r
-; MXCG.ASM - Color to gray conversion\r
-; Copyright (c) 1994 by Alessandro Scotti\r
-;\r
-;-----------------------------------------------------------\r
-WARN    PRO\r
-INCLUDE MODEX.DEF\r
-\r
-PUBLIC  mxColorToGray\r
-\r
-MX_TEXT         SEGMENT USE16 PARA PUBLIC 'CODE'\r
-                ASSUME cs:MX_TEXT, ds:NOTHING, es:NOTHING\r
-\r
-;-----------------------------------------------------------\r
-;\r
-; Converts RGB colors to gray shades.\r
-;\r
-; Input:\r
-;       CPal    = pointer to color palette\r
-;       GPal    = pointer to destination (gray) palette\r
-;       Count   = number of colors to convert\r
-; Output:\r
-;       none\r
-;\r
-; Note: CPal and GPal may point to the same buffer.\r
-;\r
-mxColorToGray   PROC    FAR\r
-        ARG     Count:WORD,     \\r
-                DPal:DWORD,     \\r
-                SPal:DWORD      = ARG_SIZE\r
-        ASSUME  ds:NOTHING\r
-        .enter  0\r
-        .push   ds, si, es, di\r
-\r
-        mov     cx, [Count]\r
-        jcxz    @@Exit\r
-        lds     si, [SPal]\r
-        les     di, [DPal]\r
-        cld\r
-; We use the standard formula\r
-;       gray=(red*30 + green*59 + blue*11)/100\r
-; in the equivalent form\r
-;       gray=(red*77 + green*151 + blue*28)/256\r
-; which doesn't need the last divide.\r
-        mov     bx, 77 SHL 8 + 151\r
-@@Loop:\r
-        lodsb                           ; Red\r
-        mul     bh\r
-        mov     dx, ax\r
-        lodsb                           ; Green\r
-        mul     bl\r
-        add     dx, ax\r
-        lodsb                           ; Blue\r
-        mov     ah, 28\r
-        mul     ah\r
-        add     ax, dx\r
-        mov     al, ah\r
-        stosw                           ; Save new RGB\r
-        stosb\r
-        loop    @@Loop\r
-\r
-@@Exit:\r
-        .pop    ds, si, es, di\r
-        .leave  ARG_SIZE\r
-mxColorToGray   ENDP\r
-\r
-MX_TEXT         ENDS\r
-END\r