| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2008 Brian Paul 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, sublicense, |
| * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 colormac.h |
| * Color-related macros |
| */ |
| |
| |
| #ifndef COLORMAC_H |
| #define COLORMAC_H |
| |
| |
| #include "config.h" |
| #include "macros.h" |
| |
| |
| /** |
| * Convert four float values in [0,1] to ubytes in [0,255] with clamping. |
| */ |
| static inline void |
| _mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4]) |
| { |
| int i; |
| for (i = 0; i < 4; i++) |
| UNCLAMPED_FLOAT_TO_UBYTE(dst[i], src[i]); |
| } |
| |
| |
| /** |
| * \name Generic color packing macros. All inputs should be GLubytes. |
| */ |
| /*@{*/ |
| |
| #define PACK_COLOR_8888( X, Y, Z, W ) \ |
| (((X) << 24) | ((Y) << 16) | ((Z) << 8) | (W)) |
| |
| #define PACK_COLOR_565( X, Y, Z ) \ |
| ((((X) & 0xf8) << 8) | (((Y) & 0xfc) << 3) | (((Z) & 0xf8) >> 3)) |
| |
| #define PACK_COLOR_1555( A, B, G, R ) \ |
| ((((B) & 0xf8) << 7) | (((G) & 0xf8) << 2) | (((R) & 0xf8) >> 3) | \ |
| (((A) & 0x80) << 8)) |
| |
| #define PACK_COLOR_4444( R, G, B, A ) \ |
| ((((R) & 0xf0) << 8) | (((G) & 0xf0) << 4) | ((B) & 0xf0) | ((A) >> 4)) |
| |
| #define PACK_COLOR_88( L, A ) \ |
| (((L) << 8) | (A)) |
| |
| /*@}*/ |
| |
| |
| #endif /* COLORMAC_H */ |