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      1 /*
      2  * xcam_buffer.h - video buffer standard version
      3  *
      4  *  Copyright (c) 2016 Intel Corporation
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  * Author: Wind Yuan <feng.yuan (at) intel.com>
     19  */
     20 
     21 #ifndef C_XCAM_BUFFER_H
     22 #define C_XCAM_BUFFER_H
     23 
     24 #include <base/xcam_common.h>
     25 
     26 XCAM_BEGIN_DECLARE
     27 #include <linux/videodev2.h>
     28 
     29 #ifndef V4L2_PIX_FMT_XBGR32
     30 #define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4')
     31 #endif
     32 
     33 #ifndef V4L2_PIX_FMT_ABGR32
     34 #define V4L2_PIX_FMT_ABGR32 v4l2_fourcc('A', 'R', '2', '4')
     35 #endif
     36 
     37 #ifndef V4L2_PIX_FMT_XRGB32
     38 #define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4')
     39 #endif
     40 
     41 #ifndef V4L2_PIX_FMT_ARGB32
     42 #define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4')
     43 #endif
     44 
     45 #ifndef V4L2_PIX_FMT_RGBA32
     46 #define V4L2_PIX_FMT_RGBA32 v4l2_fourcc('A', 'B', '2', '4')
     47 #endif
     48 
     49 /*
     50  * Define special format for 16 bit color
     51  * every format start with 'X'
     52  *
     53  * XCAM_PIX_FMT_RGB48: RGB with color-bits = 16
     54  * XCAM_PIX_FMT_RGBA64, RGBA with color-bits = 16
     55  * XCAM_PIX_FMT_SGRBG16, Bayer, with color-bits = 16
     56  */
     57 
     58 #define XCAM_PIX_FMT_RGB48     v4l2_fourcc('w', 'R', 'G', 'B')
     59 #define XCAM_PIX_FMT_RGBA64     v4l2_fourcc('w', 'R', 'G', 'a')
     60 #define XCAM_PIX_FMT_SGRBG16   v4l2_fourcc('w', 'B', 'A', '0')
     61 #define XCAM_PIX_FMT_LAB    v4l2_fourcc('h', 'L', 'a', 'b')
     62 #define XCAM_PIX_FMT_RGB48_planar     v4l2_fourcc('n', 'R', 'G', 0x48)
     63 #define XCAM_PIX_FMT_RGB24_planar     v4l2_fourcc('n', 'R', 'G', 0x24)
     64 #define XCAM_PIX_FMT_SGRBG16_planar   v4l2_fourcc('n', 'B', 'A', '0')
     65 #define XCAM_PIX_FMT_SGRBG8_planar   v4l2_fourcc('n', 'B', 'A', '8')
     66 
     67 #define XCAM_VIDEO_MAX_COMPONENTS 4
     68 
     69 
     70 typedef struct _XCamVideoBufferPlanarInfo XCamVideoBufferPlanarInfo;
     71 struct _XCamVideoBufferPlanarInfo {
     72     uint32_t width;
     73     uint32_t height;
     74     uint32_t pixel_bytes;
     75 };
     76 
     77 typedef struct _XCamVideoBufferInfo XCamVideoBufferInfo;
     78 struct _XCamVideoBufferInfo {
     79     uint32_t format; // v4l2 fourcc
     80     uint32_t color_bits;
     81     uint32_t width;
     82     uint32_t height;
     83     uint32_t aligned_width;
     84     uint32_t aligned_height;
     85     uint32_t size;
     86     uint32_t components;
     87     uint32_t strides [XCAM_VIDEO_MAX_COMPONENTS];
     88     uint32_t offsets [XCAM_VIDEO_MAX_COMPONENTS];
     89 };
     90 
     91 typedef enum {
     92     XCAM_MEM_TYPE_CPU,
     93     XCAM_MEM_TYPE_GPU,
     94     XCAM_MEM_TYPE_PRIVATE = 0x8000,
     95     XCAM_MEM_TYPE_PRIVATE_BO,
     96 } XCamMemType;
     97 
     98 typedef struct _XCamVideoBuffer XCamVideoBuffer;
     99 
    100 struct _XCamVideoBuffer {
    101     XCamVideoBufferInfo   info;
    102     uint32_t              mem_type;
    103     int64_t               timestamp;
    104 
    105     void      (*ref) (XCamVideoBuffer *);
    106     void      (*unref) (XCamVideoBuffer *);
    107     uint8_t  *(*map) (XCamVideoBuffer *);
    108     void      (*unmap) (XCamVideoBuffer *);
    109     int       (*get_fd) (XCamVideoBuffer *);
    110 };
    111 
    112 typedef struct _XCamVideoBufferIntel XCamVideoBufferIntel;
    113 struct _XCamVideoBufferIntel {
    114     XCamVideoBuffer     base;
    115 
    116     void     *(*get_bo) (XCamVideoBufferIntel *);
    117 };
    118 
    119 #define xcam_video_buffer_ref(buf) (buf)->ref(buf)
    120 #define xcam_video_buffer_unref(buf) (buf)->unref(buf)
    121 #define xcam_video_buffer_map(buf) (buf)->map(buf)
    122 #define xcam_video_buffer_unmap(buf) (buf)->unmap(buf)
    123 #define xcam_video_buffer_get_fd(buf) (buf)->get_fd(buf)
    124 #define xcam_video_buffer_intel_get_bo(buf) (buf)->get_bo(buf)
    125 
    126 XCamReturn
    127 xcam_video_buffer_info_reset (
    128     XCamVideoBufferInfo *info,
    129     uint32_t format, uint32_t width, uint32_t height,
    130     uint32_t aligned_width, uint32_t aligned_height, uint32_t size);
    131 
    132 XCamReturn
    133 xcam_video_buffer_get_planar_info (
    134     const XCamVideoBufferInfo *buf_info,  XCamVideoBufferPlanarInfo *planar_info, const uint32_t index);
    135 
    136 
    137 XCAM_END_DECLARE
    138 
    139 #endif // C_XCAM_BUFFER_H
    140