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Diffstat (limited to 'libX11/src/xcms/XRGB.c')
-rw-r--r--libX11/src/xcms/XRGB.c484
1 files changed, 242 insertions, 242 deletions
diff --git a/libX11/src/xcms/XRGB.c b/libX11/src/xcms/XRGB.c
index d9db8c074..03f980e99 100644
--- a/libX11/src/xcms/XRGB.c
+++ b/libX11/src/xcms/XRGB.c
@@ -1,242 +1,242 @@
-
-/*
- * Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
- * All Rights Reserved
- *
- * This file is a component of an X Window System-specific implementation
- * of Xcms based on the TekColor Color Management System. Permission is
- * hereby granted to use, copy, modify, sell, and otherwise distribute this
- * software and its documentation for any purpose and without fee, provided
- * that this copyright, permission, and disclaimer notice is reproduced in
- * all copies of this software and in supporting documentation. TekColor
- * is a trademark of Tektronix, Inc.
- *
- * Tektronix makes no representation about the suitability of this software
- * for any purpose. It is provided "as is" and with all faults.
- *
- * TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
- * INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE. IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
- * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
- * CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
- *
- *
- * NAME
- * XcmsRtoX.c
- *
- * DESCRIPTION
- * Convert color specifications in XcmsRGB format in one array of
- * XcmsColor structures to RGB in an array of XColor structures.
- *
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#include "Xcmsint.h"
-#include "Cv.h"
-
-/*
- * LOCAL VARIABLES
- */
-
-static unsigned short const MASK[17] = {
- 0x0000, /* 0 bitsPerRGB */
- 0x8000, /* 1 bitsPerRGB */
- 0xc000, /* 2 bitsPerRGB */
- 0xe000, /* 3 bitsPerRGB */
- 0xf000, /* 4 bitsPerRGB */
- 0xf800, /* 5 bitsPerRGB */
- 0xfc00, /* 6 bitsPerRGB */
- 0xfe00, /* 7 bitsPerRGB */
- 0xff00, /* 8 bitsPerRGB */
- 0xff80, /* 9 bitsPerRGB */
- 0xffc0, /* 10 bitsPerRGB */
- 0xffe0, /* 11 bitsPerRGB */
- 0xfff0, /* 12 bitsPerRGB */
- 0xfff8, /* 13 bitsPerRGB */
- 0xfffc, /* 14 bitsPerRGB */
- 0xfffe, /* 15 bitsPerRGB */
- 0xffff /* 16 bitsPerRGB */
-};
-
-
-
-/************************************************************************
- * *
- * API PRIVATE ROUTINES *
- * *
- ************************************************************************/
-
-/*
- * NAME
- * _XcmsRGB_to_XColor -
- *
- * SYNOPSIS
- */
-void
-_XcmsRGB_to_XColor(
- XcmsColor *pColors,
- XColor *pXColors,
- unsigned int nColors)
-/*
- * DESCRIPTION
- * Translates a color specification in XcmsRGBFormat in a XcmsColor
- * structure to an XColor structure.
- *
- * RETURNS
- * void.
- */
-{
- for (; nColors--; pXColors++, pColors++) {
- pXColors->pixel = pColors->pixel;
- pXColors->red = pColors->spec.RGB.red;
- pXColors->green = pColors->spec.RGB.green;
- pXColors->blue = pColors->spec.RGB.blue;
- pXColors->flags = (DoRed | DoGreen | DoBlue);
- }
-}
-
-
-/*
- * NAME
- * _XColor_to_XcmsRGB
- *
- * SYNOPSIS
- */
-void
-_XColor_to_XcmsRGB(
- XcmsCCC ccc,
- XColor *pXColors,
- XcmsColor *pColors,
- unsigned int nColors)
-/*
- * DESCRIPTION
- * Translates an RGB color specification in an XColor
- * structure to an XcmsRGB structure.
- *
- * IMPORTANT NOTE: Bit replication that may have been caused
- * with ResolveColor() routine in the X Server is undone
- * here if requested! For example, if red = 0xcaca and the
- * bits_per_rgb is 8, then spec.RGB.red will be 0xca00.
- *
- * RETURNS
- * void
- */
-{
- int bits_per_rgb = ccc->visual->bits_per_rgb;
-
- for (; nColors--; pXColors++, pColors++) {
- pColors->spec.RGB.red = (pXColors->red & MASK[bits_per_rgb]);
- pColors->spec.RGB.green = (pXColors->green & MASK[bits_per_rgb]);
- pColors->spec.RGB.blue = (pXColors->blue & MASK[bits_per_rgb]);
- pColors->format = XcmsRGBFormat;
- pColors->pixel = pXColors->pixel;
- }
-}
-
-
-/*
- * NAME
- * _XcmsResolveColor
- *
- * SYNOPSIS
- */
-void
-_XcmsResolveColor(
- XcmsCCC ccc,
- XcmsColor *pXcmsColor)
-/*
- * DESCRIPTION
- * Uses the X Server ResolveColor() algorithm to
- * modify values to closest values supported by hardware.
- * Old algorithm simply masked low-order bits. The new algorithm
- * has the effect of replicating significant bits into lower order
- * bits in order to stretch the hardware value into all 16 bits.
- *
- * On a display with N-bit DACs, the "hardware" color is computed as:
- *
- * ((unsignedlong)(ClientValue >> (16-N)) * 0xFFFF) / ((1 << N) - 1)
- *
- *
- * RETURNS
- * void.
- */
-{
- int shift;
- int max_color;
-
- shift = 16 - ccc->visual->bits_per_rgb;
- max_color = (1 << ccc->visual->bits_per_rgb) - 1;
-
-
- pXcmsColor->spec.RGB.red =
- ((unsigned long)(pXcmsColor->spec.RGB.red >> shift) * 0xFFFF)
- / max_color;
- pXcmsColor->spec.RGB.green =
- ((unsigned long)(pXcmsColor->spec.RGB.green >> shift) * 0xFFFF)
- / max_color;
- pXcmsColor->spec.RGB.blue =
- ((unsigned long)(pXcmsColor->spec.RGB.blue >> shift) * 0xFFFF)
- / max_color;
-}
-
-
-/*
- * NAME
- * _XcmsUnresolveColor
- *
- * SYNOPSIS
- */
-void
-_XcmsUnresolveColor(
- XcmsCCC ccc,
- XcmsColor *pColor)
-/*
- * DESCRIPTION
- * Masks out insignificant bits.
- *
- * RETURNS
- * void.
- *
- * ASSUMPTIONS
- * format == XcmsRGBFormat
- */
-{
- int bits_per_rgb = ccc->visual->bits_per_rgb;
-
- pColor->spec.RGB.red &= MASK[bits_per_rgb];
- pColor->spec.RGB.green &= MASK[bits_per_rgb];
- pColor->spec.RGB.blue &= MASK[bits_per_rgb];
-}
-
-
-/*
- * NAME
- * _XUnresolveColor
- *
- * SYNOPSIS
- */
-void
-_XUnresolveColor(
- XcmsCCC ccc,
- XColor *pXColor)
-/*
- * DESCRIPTION
- * Masks out insignificant bits.
- *
- * RETURNS
- * void.
- */
-{
- int bits_per_rgb = ccc->visual->bits_per_rgb;
-
- pXColor->red &= MASK[bits_per_rgb];
- pXColor->green &= MASK[bits_per_rgb];
- pXColor->blue &= MASK[bits_per_rgb];
-}
-
+
+/*
+ * Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
+ * All Rights Reserved
+ *
+ * This file is a component of an X Window System-specific implementation
+ * of Xcms based on the TekColor Color Management System. Permission is
+ * hereby granted to use, copy, modify, sell, and otherwise distribute this
+ * software and its documentation for any purpose and without fee, provided
+ * that this copyright, permission, and disclaimer notice is reproduced in
+ * all copies of this software and in supporting documentation. TekColor
+ * is a trademark of Tektronix, Inc.
+ *
+ * Tektronix makes no representation about the suitability of this software
+ * for any purpose. It is provided "as is" and with all faults.
+ *
+ * TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
+ * INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE. IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
+ *
+ *
+ * NAME
+ * XcmsRtoX.c
+ *
+ * DESCRIPTION
+ * Convert color specifications in XcmsRGB format in one array of
+ * XcmsColor structures to RGB in an array of XColor structures.
+ *
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "Xcmsint.h"
+#include "Cv.h"
+
+/*
+ * LOCAL VARIABLES
+ */
+
+static unsigned short const MASK[17] = {
+ 0x0000, /* 0 bitsPerRGB */
+ 0x8000, /* 1 bitsPerRGB */
+ 0xc000, /* 2 bitsPerRGB */
+ 0xe000, /* 3 bitsPerRGB */
+ 0xf000, /* 4 bitsPerRGB */
+ 0xf800, /* 5 bitsPerRGB */
+ 0xfc00, /* 6 bitsPerRGB */
+ 0xfe00, /* 7 bitsPerRGB */
+ 0xff00, /* 8 bitsPerRGB */
+ 0xff80, /* 9 bitsPerRGB */
+ 0xffc0, /* 10 bitsPerRGB */
+ 0xffe0, /* 11 bitsPerRGB */
+ 0xfff0, /* 12 bitsPerRGB */
+ 0xfff8, /* 13 bitsPerRGB */
+ 0xfffc, /* 14 bitsPerRGB */
+ 0xfffe, /* 15 bitsPerRGB */
+ 0xffff /* 16 bitsPerRGB */
+};
+
+
+
+/************************************************************************
+ * *
+ * API PRIVATE ROUTINES *
+ * *
+ ************************************************************************/
+
+/*
+ * NAME
+ * _XcmsRGB_to_XColor -
+ *
+ * SYNOPSIS
+ */
+void
+_XcmsRGB_to_XColor(
+ XcmsColor *pColors,
+ XColor *pXColors,
+ unsigned int nColors)
+/*
+ * DESCRIPTION
+ * Translates a color specification in XcmsRGBFormat in a XcmsColor
+ * structure to an XColor structure.
+ *
+ * RETURNS
+ * void.
+ */
+{
+ for (; nColors--; pXColors++, pColors++) {
+ pXColors->pixel = pColors->pixel;
+ pXColors->red = pColors->spec.RGB.red;
+ pXColors->green = pColors->spec.RGB.green;
+ pXColors->blue = pColors->spec.RGB.blue;
+ pXColors->flags = (DoRed | DoGreen | DoBlue);
+ }
+}
+
+
+/*
+ * NAME
+ * _XColor_to_XcmsRGB
+ *
+ * SYNOPSIS
+ */
+void
+_XColor_to_XcmsRGB(
+ XcmsCCC ccc,
+ XColor *pXColors,
+ XcmsColor *pColors,
+ unsigned int nColors)
+/*
+ * DESCRIPTION
+ * Translates an RGB color specification in an XColor
+ * structure to an XcmsRGB structure.
+ *
+ * IMPORTANT NOTE: Bit replication that may have been caused
+ * with ResolveColor() routine in the X Server is undone
+ * here if requested! For example, if red = 0xcaca and the
+ * bits_per_rgb is 8, then spec.RGB.red will be 0xca00.
+ *
+ * RETURNS
+ * void
+ */
+{
+ int bits_per_rgb = ccc->visual->bits_per_rgb;
+
+ for (; nColors--; pXColors++, pColors++) {
+ pColors->spec.RGB.red = (pXColors->red & MASK[bits_per_rgb]);
+ pColors->spec.RGB.green = (pXColors->green & MASK[bits_per_rgb]);
+ pColors->spec.RGB.blue = (pXColors->blue & MASK[bits_per_rgb]);
+ pColors->format = XcmsRGBFormat;
+ pColors->pixel = pXColors->pixel;
+ }
+}
+
+
+/*
+ * NAME
+ * _XcmsResolveColor
+ *
+ * SYNOPSIS
+ */
+void
+_XcmsResolveColor(
+ XcmsCCC ccc,
+ XcmsColor *pXcmsColor)
+/*
+ * DESCRIPTION
+ * Uses the X Server ResolveColor() algorithm to
+ * modify values to closest values supported by hardware.
+ * Old algorithm simply masked low-order bits. The new algorithm
+ * has the effect of replicating significant bits into lower order
+ * bits in order to stretch the hardware value into all 16 bits.
+ *
+ * On a display with N-bit DACs, the "hardware" color is computed as:
+ *
+ * ((unsignedlong)(ClientValue >> (16-N)) * 0xFFFF) / ((1 << N) - 1)
+ *
+ *
+ * RETURNS
+ * void.
+ */
+{
+ int shift;
+ int max_color;
+
+ shift = 16 - ccc->visual->bits_per_rgb;
+ max_color = (1 << ccc->visual->bits_per_rgb) - 1;
+
+
+ pXcmsColor->spec.RGB.red =
+ ((unsigned long)(pXcmsColor->spec.RGB.red >> shift) * 0xFFFF)
+ / max_color;
+ pXcmsColor->spec.RGB.green =
+ ((unsigned long)(pXcmsColor->spec.RGB.green >> shift) * 0xFFFF)
+ / max_color;
+ pXcmsColor->spec.RGB.blue =
+ ((unsigned long)(pXcmsColor->spec.RGB.blue >> shift) * 0xFFFF)
+ / max_color;
+}
+
+
+/*
+ * NAME
+ * _XcmsUnresolveColor
+ *
+ * SYNOPSIS
+ */
+void
+_XcmsUnresolveColor(
+ XcmsCCC ccc,
+ XcmsColor *pColor)
+/*
+ * DESCRIPTION
+ * Masks out insignificant bits.
+ *
+ * RETURNS
+ * void.
+ *
+ * ASSUMPTIONS
+ * format == XcmsRGBFormat
+ */
+{
+ int bits_per_rgb = ccc->visual->bits_per_rgb;
+
+ pColor->spec.RGB.red &= MASK[bits_per_rgb];
+ pColor->spec.RGB.green &= MASK[bits_per_rgb];
+ pColor->spec.RGB.blue &= MASK[bits_per_rgb];
+}
+
+
+/*
+ * NAME
+ * _XUnresolveColor
+ *
+ * SYNOPSIS
+ */
+void
+_XUnresolveColor(
+ XcmsCCC ccc,
+ XColor *pXColor)
+/*
+ * DESCRIPTION
+ * Masks out insignificant bits.
+ *
+ * RETURNS
+ * void.
+ */
+{
+ int bits_per_rgb = ccc->visual->bits_per_rgb;
+
+ pXColor->red &= MASK[bits_per_rgb];
+ pXColor->green &= MASK[bits_per_rgb];
+ pXColor->blue &= MASK[bits_per_rgb];
+}
+
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