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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 //
     18 
     19 // Pixel formats used across the system.
     20 // These formats might not all be supported by all renderers, for instance
     21 // skia or SurfaceFlinger are not required to support all of these formats
     22 // (either as source or destination)
     23 
     24 
     25 #ifndef UI_PIXELFORMAT_H
     26 #define UI_PIXELFORMAT_H
     27 
     28 #include <hardware/hardware.h>
     29 
     30 namespace android {
     31 
     32 enum {
     33     //
     34     // these constants need to match those
     35     // in graphics/PixelFormat.java & pixelflinger/format.h
     36     //
     37     PIXEL_FORMAT_UNKNOWN    =   0,
     38     PIXEL_FORMAT_NONE       =   0,
     39 
     40     // logical pixel formats used by the SurfaceFlinger -----------------------
     41     PIXEL_FORMAT_CUSTOM         = -4,
     42         // Custom pixel-format described by a PixelFormatInfo structure
     43 
     44     PIXEL_FORMAT_TRANSLUCENT    = -3,
     45         // System chooses a format that supports translucency (many alpha bits)
     46 
     47     PIXEL_FORMAT_TRANSPARENT    = -2,
     48         // System chooses a format that supports transparency
     49         // (at least 1 alpha bit)
     50 
     51     PIXEL_FORMAT_OPAQUE         = -1,
     52         // System chooses an opaque format (no alpha bits required)
     53 
     54     // real pixel formats supported for rendering -----------------------------
     55 
     56     PIXEL_FORMAT_RGBA_8888    = HAL_PIXEL_FORMAT_RGBA_8888,    // 4x8-bit RGBA
     57     PIXEL_FORMAT_RGBX_8888    = HAL_PIXEL_FORMAT_RGBX_8888,    // 4x8-bit RGB0
     58     PIXEL_FORMAT_RGB_888      = HAL_PIXEL_FORMAT_RGB_888,      // 3x8-bit RGB
     59     PIXEL_FORMAT_RGB_565      = HAL_PIXEL_FORMAT_RGB_565,      // 16-bit RGB
     60     PIXEL_FORMAT_BGRA_8888    = HAL_PIXEL_FORMAT_BGRA_8888,    // 4x8-bit BGRA
     61     PIXEL_FORMAT_RGBA_5551    = 6,                             // 16-bit ARGB
     62     PIXEL_FORMAT_RGBA_4444    = 7,                             // 16-bit ARGB
     63     PIXEL_FORMAT_RGBA_FP16    = HAL_PIXEL_FORMAT_RGBA_FP16,    // 64-bit RGBA
     64     PIXEL_FORMAT_RGBA_1010102 = HAL_PIXEL_FORMAT_RGBA_1010102, // 32-bit RGBA
     65 };
     66 
     67 typedef int32_t PixelFormat;
     68 
     69 uint32_t bytesPerPixel(PixelFormat format);
     70 uint32_t bitsPerPixel(PixelFormat format);
     71 
     72 }; // namespace android
     73 
     74 #endif // UI_PIXELFORMAT_H
     75