1 /* 2 * Copyright (c) 2021-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef COLOR_H 17 #define COLOR_H 18 19 #include <cstdint> 20 #include <stdint.h> 21 22 #include "effect/color_space.h" 23 #include "utils/scalar.h" 24 25 namespace OHOS { 26 namespace Rosen { 27 namespace Drawing { 28 enum ColorType { 29 COLORTYPE_UNKNOWN = 0, 30 COLORTYPE_ALPHA_8, 31 COLORTYPE_RGB_565, 32 COLORTYPE_ARGB_4444, 33 COLORTYPE_RGBA_8888, 34 COLORTYPE_BGRA_8888, 35 COLORTYPE_N32, 36 }; 37 38 enum AlphaType { 39 ALPHATYPE_UNKNOWN = 0, 40 ALPHATYPE_OPAQUE, 41 ALPHATYPE_PREMUL, 42 ALPHATYPE_UNPREMUL, 43 }; 44 45 // Default RGBA color value is black. 46 struct Color4f { 47 scalar redF_ = 0; 48 scalar greenF_ = 0; 49 scalar blueF_ = 0; 50 scalar alphaF_ = 1; 51 }; 52 53 typedef uint32_t ColorQuad; 54 class Color { 55 public: 56 constexpr static ColorQuad COLOR_TRANSPARENT = 0; 57 constexpr static ColorQuad COLOR_BLACK = 0xFF000000; 58 constexpr static ColorQuad COLOR_DKGRAY = 0xFF444444; 59 constexpr static ColorQuad COLOR_GRAY = 0xFF888888; 60 constexpr static ColorQuad COLOR_LTGRAY = 0xFFCCCCCC; 61 constexpr static ColorQuad COLOR_WHITE = 0xFFFFFFFF; 62 constexpr static ColorQuad COLOR_RED = 0xFFFF0000; 63 constexpr static ColorQuad COLOR_GREEN = 0xFF00FF00; 64 constexpr static ColorQuad COLOR_BLUE = 0xFF0000FF; 65 constexpr static ColorQuad COLOR_YELLOW = 0xFFFFFF00; 66 constexpr static ColorQuad COLOR_CYAN = 0xFF00FFFF; 67 constexpr static ColorQuad COLOR_MAGENTA = 0xFFFF00FF; 68 69 constexpr static uint8_t RGB_MAX = 255; 70 // Return color value from component values. ColorQuadSetARGB(uint32_t r,uint32_t g,uint32_t b,uint32_t a)71 static inline ColorQuad ColorQuadSetARGB(uint32_t r, uint32_t g, uint32_t b, uint32_t a) 72 { 73 return ((a & 0xffu) << 24) | ((r & 0xffu) << 16) | ((g & 0xffu) << 8) | ((b & 0xffu) << 0); 74 } 75 76 // Return alpha byte from color value. ColorQuadGetA(ColorQuad c)77 static inline uint32_t ColorQuadGetA(ColorQuad c) 78 { 79 return ((c >> 24) & 0xff); 80 } 81 82 // Return red component of color, from zero to 255. ColorQuadGetR(ColorQuad c)83 static inline uint32_t ColorQuadGetR(ColorQuad c) 84 { 85 return ((c >> 16) & 0xff); 86 } 87 88 // Return green component of color, from zero to 255. ColorQuadGetG(ColorQuad c)89 static inline uint32_t ColorQuadGetG(ColorQuad c) 90 { 91 return ((c >> 8) & 0xff); 92 } 93 94 // Return blue component of color, from zero to 255. ColorQuadGetB(ColorQuad c)95 static inline uint32_t ColorQuadGetB(ColorQuad c) 96 { 97 return ((c >> 0) & 0xff); 98 } 99 ~Color()100 ~Color() {} 101 102 public: 103 Color() noexcept; 104 Color(const Color& c) noexcept; 105 Color(uint32_t r, uint32_t g, uint32_t b, uint32_t a) noexcept; 106 Color(ColorQuad rgba) noexcept; 107 108 uint32_t GetRed() const; 109 uint32_t GetGreen() const; 110 uint32_t GetBlue() const; 111 uint32_t GetAlpha() const; 112 void SetRed(uint32_t r); 113 void SetGreen(uint32_t g); 114 void SetBlue(uint32_t b); 115 void SetAlpha(uint32_t a); 116 117 scalar GetRedF() const; 118 scalar GetGreenF() const; 119 scalar GetBlueF() const; 120 scalar GetAlphaF() const; 121 Color4f GetColor4f(); 122 void SetRedF(scalar r); 123 void SetGreenF(scalar g); 124 void SetBlueF(scalar b); 125 void SetAlphaF(scalar a); 126 127 void SetRgb(uint32_t r, uint32_t g, uint32_t b, uint32_t a = 255); 128 void SetRgbF(scalar r, scalar g, scalar b, scalar a = 1.0); 129 130 void SetColorQuad(uint32_t c); 131 ColorQuad CastToColorQuad() const; 132 133 friend bool operator==(const Color& c1, const Color& c2); 134 friend bool operator!=(const Color& c1, const Color& c2); 135 136 private: 137 uint32_t alpha_; 138 uint32_t red_; 139 uint32_t green_; 140 uint32_t blue_; 141 Color4f color4f_; 142 }; 143 } // namespace Drawing 144 } // namespace Rosen 145 } // namespace OHOS 146 #endif 147