| bigbiff | 673c7ae | 2020-12-02 19:44:56 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2005 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_PIXELFLINGER_FORMAT_H |
| 18 | #define ANDROID_PIXELFLINGER_FORMAT_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <sys/types.h> |
| 22 | |
| 23 | enum GGLPixelFormat { |
| 24 | // these constants need to match those |
| 25 | // in graphics/PixelFormat.java, ui/PixelFormat.h, BlitHardware.h |
| 26 | GGL_PIXEL_FORMAT_UNKNOWN = 0, |
| 27 | GGL_PIXEL_FORMAT_NONE = 0, |
| 28 | |
| 29 | GGL_PIXEL_FORMAT_RGBA_8888 = 1, // 4x8-bit ARGB |
| 30 | GGL_PIXEL_FORMAT_RGBX_8888 = 2, // 3x8-bit RGB stored in 32-bit chunks |
| 31 | GGL_PIXEL_FORMAT_RGB_888 = 3, // 3x8-bit RGB |
| 32 | GGL_PIXEL_FORMAT_RGB_565 = 4, // 16-bit RGB |
| 33 | GGL_PIXEL_FORMAT_BGRA_8888 = 5, // 4x8-bit BGRA |
| 34 | GGL_PIXEL_FORMAT_RGBA_5551 = 6, // 16-bit RGBA |
| 35 | GGL_PIXEL_FORMAT_RGBA_4444 = 7, // 16-bit RGBA |
| 36 | |
| 37 | GGL_PIXEL_FORMAT_A_8 = 8, // 8-bit A |
| 38 | GGL_PIXEL_FORMAT_L_8 = 9, // 8-bit L (R=G=B = L) |
| 39 | GGL_PIXEL_FORMAT_LA_88 = 0xA, // 16-bit LA |
| 40 | GGL_PIXEL_FORMAT_RGB_332 = 0xB, // 8-bit RGB (non paletted) |
| 41 | |
| 42 | // reserved range. don't use. |
| 43 | GGL_PIXEL_FORMAT_RESERVED_10 = 0x10, |
| 44 | GGL_PIXEL_FORMAT_RESERVED_11 = 0x11, |
| 45 | GGL_PIXEL_FORMAT_RESERVED_12 = 0x12, |
| 46 | GGL_PIXEL_FORMAT_RESERVED_13 = 0x13, |
| 47 | GGL_PIXEL_FORMAT_RESERVED_14 = 0x14, |
| 48 | GGL_PIXEL_FORMAT_RESERVED_15 = 0x15, |
| 49 | GGL_PIXEL_FORMAT_RESERVED_16 = 0x16, |
| 50 | GGL_PIXEL_FORMAT_RESERVED_17 = 0x17, |
| 51 | |
| 52 | // reserved/special formats |
| 53 | GGL_PIXEL_FORMAT_Z_16 = 0x18, |
| 54 | GGL_PIXEL_FORMAT_S_8 = 0x19, |
| 55 | GGL_PIXEL_FORMAT_SZ_24 = 0x1A, |
| 56 | GGL_PIXEL_FORMAT_SZ_8 = 0x1B, |
| 57 | |
| 58 | // reserved range. don't use. |
| 59 | GGL_PIXEL_FORMAT_RESERVED_20 = 0x20, |
| 60 | GGL_PIXEL_FORMAT_RESERVED_21 = 0x21, |
| 61 | }; |
| 62 | |
| 63 | enum GGLFormatComponents { |
| 64 | GGL_STENCIL_INDEX = 0x1901, |
| 65 | GGL_DEPTH_COMPONENT = 0x1902, |
| 66 | GGL_ALPHA = 0x1906, |
| 67 | GGL_RGB = 0x1907, |
| 68 | GGL_RGBA = 0x1908, |
| 69 | GGL_LUMINANCE = 0x1909, |
| 70 | GGL_LUMINANCE_ALPHA = 0x190A, |
| 71 | }; |
| 72 | |
| 73 | enum GGLFormatComponentIndex { |
| 74 | GGL_INDEX_ALPHA = 0, |
| 75 | GGL_INDEX_RED = 1, |
| 76 | GGL_INDEX_GREEN = 2, |
| 77 | GGL_INDEX_BLUE = 3, |
| 78 | GGL_INDEX_STENCIL = 0, |
| 79 | GGL_INDEX_DEPTH = 1, |
| 80 | GGL_INDEX_Y = 0, |
| 81 | GGL_INDEX_CB = 1, |
| 82 | GGL_INDEX_CR = 2, |
| 83 | }; |
| 84 | |
| 85 | typedef struct { |
| 86 | #ifdef __cplusplus |
| 87 | enum { |
| 88 | ALPHA = GGL_INDEX_ALPHA, |
| 89 | RED = GGL_INDEX_RED, |
| 90 | GREEN = GGL_INDEX_GREEN, |
| 91 | BLUE = GGL_INDEX_BLUE, |
| 92 | STENCIL = GGL_INDEX_STENCIL, |
| 93 | DEPTH = GGL_INDEX_DEPTH, |
| 94 | LUMA = GGL_INDEX_Y, |
| 95 | CHROMAB = GGL_INDEX_CB, |
| 96 | CHROMAR = GGL_INDEX_CR, |
| 97 | }; |
| 98 | inline uint32_t mask(int i) const { |
| 99 | return ((1<<(c[i].h-c[i].l))-1)<<c[i].l; |
| 100 | } |
| 101 | inline uint32_t bits(int i) const { |
| 102 | return c[i].h - c[i].l; |
| 103 | } |
| 104 | #endif |
| 105 | uint8_t size; // bytes per pixel |
| 106 | uint8_t bitsPerPixel; |
| 107 | union { |
| 108 | struct { |
| 109 | uint8_t ah; // alpha high bit position + 1 |
| 110 | uint8_t al; // alpha low bit position |
| 111 | uint8_t rh; // red high bit position + 1 |
| 112 | uint8_t rl; // red low bit position |
| 113 | uint8_t gh; // green high bit position + 1 |
| 114 | uint8_t gl; // green low bit position |
| 115 | uint8_t bh; // blue high bit position + 1 |
| 116 | uint8_t bl; // blue low bit position |
| 117 | }; |
| 118 | struct { |
| 119 | uint8_t h; |
| 120 | uint8_t l; |
| 121 | } __attribute__((__packed__)) c[4]; |
| 122 | } __attribute__((__packed__)); |
| 123 | uint16_t components; // GGLFormatComponents |
| 124 | } GGLFormat; |
| 125 | |
| 126 | |
| 127 | #ifdef __cplusplus |
| 128 | extern "C" const GGLFormat* gglGetPixelFormatTable(size_t* numEntries = 0); |
| 129 | #else |
| 130 | const GGLFormat* gglGetPixelFormatTable(size_t* numEntries); |
| 131 | #endif |
| 132 | |
| 133 | |
| 134 | // ---------------------------------------------------------------------------- |
| 135 | |
| 136 | #endif // ANDROID_PIXELFLINGER_FORMAT_H |