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Diffstat (limited to 'src/platformspecific/macos/libs/nv_color.h')
-rw-r--r-- | src/platformspecific/macos/libs/nv_color.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/platformspecific/macos/libs/nv_color.h b/src/platformspecific/macos/libs/nv_color.h new file mode 100644 index 0000000..b934752 --- /dev/null +++ b/src/platformspecific/macos/libs/nv_color.h @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** Copyright (C) 2007-2008 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef _QT3DS_COLOR_H +#define _QT3DS_COLOR_H + +/** @file nv_color.h + Simple abstraction for RGBA colors as parameters to various libraries/functions. +*/ + +/** Base type for a single color channel (8-bit unsigned). */ +typedef unsigned char NvPCColor8; + +//#define NV_COLOR_BREAKOLD +#ifdef NV_COLOR_BREAKOLD // uses a struct to break backwards-compat and accidental uses + +typedef struct +{ + NvPCColor8 r; + NvPCColor8 g; + NvPCColor8 b; + NvPCColor8 a; +} NvPackedColor; + +static const NvPackedColor gnvpcwhite = { 255, 255, 255, 255 }; +static const NvPackedColor gnvpcblack = { 0, 0, 0, 255 }; + +#define NV_PACKED_COLOR(r, g, b, a) \ + { \ + (NvPCColor8)(r), (NvPCColor8)(g), (NvPCColor8)(b), (NvPCColor8)(a) \ + } + +#define NV_PC_PREDEF_WHITE gnvpcwhite +#define NV_PC_PREDEF_BLACK gnvpcblack + +#define NV_PC_RED(c) (c.r) +#define NV_PC_GREEN(c) (c.g) +#define NV_PC_BLUE(c) (c.b) +#define NV_PC_ALPHA(c) (c.a) + +#define NV_PC_PACK_UINT(c) (*(unsigned int *)(&(c))) + +#define NV_PC_EQUAL(x, y) ((x).r == (y).r && (x).g == (y).g && (x).b == (y).b && (x).a == (y).a) + +#else /* code that doesn't break old pass-as-uint stuff */ + +/** Main type declaration for a packed 4-color construct. */ +typedef unsigned int NvPackedColor; + +/** A macro to build a packed color, passing in RGBA as four 8-bit integer values. */ +#define NV_PACKED_COLOR(r, g, b, a) \ + ((NvPackedColor)(((((int)(a)) & 0xFF) << 24) | ((((int)(b)) & 0xFF) << 16) \ + | ((((int)(g)) & 0xFF) << 8) | ((((int)(r)) & 0xFF)))) + +/** A predefined constant for WHITE. */ +#define NV_PC_PREDEF_WHITE NV_PACKED_COLOR(0xFF, 0xFF, 0xFF, 0xFF) +/** A predefined constant for BLACK. */ +#define NV_PC_PREDEF_BLACK NV_PACKED_COLOR(0x00, 0x00, 0x00, 0xFF) + +/** A macro for 'extracting' the red value from an NvPackedColor. */ +#define NV_PC_RED(c) ((c >> 0) & 0xff) +/** A macro for 'extracting' the green value from an NvPackedColor. */ +#define NV_PC_GREEN(c) ((c >> 8) & 0xff) +/** A macro for 'extracting' the blue value from an NvPackedColor. */ +#define NV_PC_BLUE(c) ((c >> 16) & 0xff) +/** A macro for 'extracting' the alpha value from an NvPackedColor. */ +#define NV_PC_ALPHA(c) ((c >> 24) & 0xff) + +/** A macro requesting the packed color repacked into a 32-bit unsigned int. + This is a no-op for the color-as-uint approach. +*/ +#define NV_PC_PACK_UINT(c) (c) +/** A macro for testing the equality of two NvPackedColors. */ +#define NV_PC_EQUAL(x, y) (x == y) +#endif + +/** A macro for mapping a single packed color channel into its floating point [0,1] rep. */ +#define NV_PC_TO_FLOAT(c) (c / 255.0f) + +#endif /*_QT3DS_COLOR_H*/ |