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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      };
mask__anon4a2e03bf010898      inline uint32_t mask(int i) const {
99              return ((1<<(c[i].h-c[i].l))-1)<<c[i].l;
100      }
bits__anon4a2e03bf0108101      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
137