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-rw-r--r--src/gallium/auxiliary/util/u_pack_color.h87
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diff --git a/src/gallium/auxiliary/util/u_pack_color.h b/src/gallium/auxiliary/util/u_pack_color.h
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-/**************************************************************************
- *
- * Copyright 2008 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * Functions to produce packed colors/Z from floats.
- */
-
-
-#ifndef U_PACK_COLOR_H
-#define U_PACK_COLOR_H
-
-
-#include "pipe/p_compiler.h"
-#include "pipe/p_format.h"
-#include "util/u_debug.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
-
-
-/**
- * Helper union for packing pixel values.
- * Will often contain values in formats which are too complex to be described
- * in simple terms, hence might just effectively contain a number of bytes.
- * Must be big enough to hold data for all formats (currently 256 bits).
- */
-union util_color {
- ubyte ub;
- ushort us;
- uint ui[4];
- ushort h[4]; /* half float */
- float f[4];
- double d[4];
-};
-
-/**
- * Pack 4 ubytes into a 4-byte word
- */
-static inline unsigned
-pack_ub4(ubyte b0, ubyte b1, ubyte b2, ubyte b3)
-{
- return ((((unsigned int)b0) << 0) |
- (((unsigned int)b1) << 8) |
- (((unsigned int)b2) << 16) |
- (((unsigned int)b3) << 24));
-}
-
-
-/**
- * Pack/convert 4 floats into one 4-byte word.
- */
-static inline unsigned
-pack_ui32_float4(float a, float b, float c, float d)
-{
- return pack_ub4( float_to_ubyte(a),
- float_to_ubyte(b),
- float_to_ubyte(c),
- float_to_ubyte(d) );
-}
-
-
-
-#endif /* U_PACK_COLOR_H */