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bigbiff673c7ae2020-12-02 19:44:56 -05001/*
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
23enum 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
63enum 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
73enum 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
85typedef 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
128extern "C" const GGLFormat* gglGetPixelFormatTable(size_t* numEntries = 0);
129#else
130const GGLFormat* gglGetPixelFormatTable(size_t* numEntries);
131#endif
132
133
134// ----------------------------------------------------------------------------
135
136#endif // ANDROID_PIXELFLINGER_FORMAT_H