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1 /*
2  * cl_geo_map_handler.h - CL geometry map handler
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@intel.com>
19  */
20 
21 #ifndef XCAM_CL_GEO_MAP_HANDLER_H
22 #define XCAM_CL_GEO_MAP_HANDLER_H
23 
24 #include <xcam_std.h>
25 #include <ocl/cl_image_handler.h>
26 
27 namespace XCam {
28 
29 struct GeoPos {
30     double x;
31     double y;
32 
GeoPosGeoPos33     GeoPos () : x(0), y(0) {}
34 };
35 
36 class CLGeoMapKernel;
37 class GeoKernelParamCallback
38 {
39     friend class CLGeoMapKernel;
40 
41 public:
GeoKernelParamCallback()42     GeoKernelParamCallback () {}
~GeoKernelParamCallback()43     virtual ~GeoKernelParamCallback () {}
44 
45 protected:
46     virtual SmartPtr<CLImage> get_geo_input_image (NV12PlaneIdx index) = 0;
47     virtual SmartPtr<CLImage> get_geo_output_image (NV12PlaneIdx index) = 0;
48     virtual SmartPtr<CLImage> get_geo_map_table () = 0;
49     virtual void get_geo_equivalent_out_size (float &width, float &height) = 0;
50     virtual void get_geo_pixel_out_size (float &width, float &height) = 0;
51 
52     virtual SmartPtr<CLImage> get_lsc_table () = 0;
53     virtual float* get_lsc_gray_threshold() = 0;
54 
55 private:
56     XCAM_DEAD_COPY (GeoKernelParamCallback);
57 };
58 
59 class CLGeoMapHandler;
60 class CLGeoMapKernel
61     : public CLImageKernel
62 {
63 public:
64     explicit CLGeoMapKernel (
65         const SmartPtr<CLContext> &context,
66         const SmartPtr<GeoKernelParamCallback> handler,
67         bool need_lsc);
68 
69 protected:
70     virtual XCamReturn prepare_arguments (CLArgList &args, CLWorkSize &work_size);
71 
72 private:
73     SmartPtr<GeoKernelParamCallback>   _handler;
74     bool                               _need_lsc;
75 };
76 
77 class CLGeoMapHandler
78     : public CLImageHandler
79     , public GeoKernelParamCallback
80 {
81 public:
82     explicit CLGeoMapHandler (const SmartPtr<CLContext> &context);
set_output_size(uint32_t width,uint32_t height)83     void set_output_size (uint32_t width, uint32_t height) {
84         _output_width = width;
85         _output_height = height;
86     }
get_output_size(uint32_t & width,uint32_t & height)87     void get_output_size (uint32_t &width, uint32_t &height) const {
88         width = _output_width;
89         height = _output_height;
90     }
91 
92     bool set_map_data (GeoPos *data, uint32_t width, uint32_t height);
93     bool set_map_uint (float uint_x, float uint_y);
get_map_uint(float & uint_x,float & uint_y)94     void get_map_uint (float &uint_x, float &uint_y) {
95         uint_x = _uint_x;
96         uint_y = _uint_y;
97     }
98 
99 protected:
100     // derived from GeoKernelParamCallback
get_geo_input_image(NV12PlaneIdx index)101     virtual SmartPtr<CLImage> get_geo_input_image (NV12PlaneIdx index) {
102         XCAM_ASSERT (index < NV12PlaneMax);
103         return _input [index];
104     }
get_geo_output_image(NV12PlaneIdx index)105     virtual SmartPtr<CLImage> get_geo_output_image (NV12PlaneIdx index) {
106         XCAM_ASSERT (index < NV12PlaneMax);
107         return _output [index];
108     }
get_geo_map_table()109     virtual SmartPtr<CLImage> get_geo_map_table () {
110         XCAM_ASSERT (_geo_image.ptr ());
111         return _geo_image;
112     }
113     virtual void get_geo_equivalent_out_size (float &width, float &height);
114     virtual void get_geo_pixel_out_size (float &width, float &height);
115 
get_lsc_table()116     virtual SmartPtr<CLImage> get_lsc_table () {
117         XCAM_ASSERT (false && "CLGeoMapHandler::lsc table is not supported");
118         return NULL;
119     }
get_lsc_gray_threshold()120     virtual float* get_lsc_gray_threshold () {
121         XCAM_ASSERT (false && "CLGeoMapHandler::lsc gray threshold is not supported");
122         return NULL;
123     }
124 
125 protected:
126     virtual XCamReturn prepare_buffer_pool_video_info (
127         const VideoBufferInfo &input,
128         VideoBufferInfo &output);
129     virtual XCamReturn prepare_parameters (SmartPtr<VideoBuffer> &input, SmartPtr<VideoBuffer> &output);
130     virtual XCamReturn execute_done (SmartPtr<VideoBuffer> &output);
131 
132 private:
133     bool normalize_geo_map (uint32_t image_w, uint32_t image_h);
134     bool check_geo_map_buf (uint32_t width, uint32_t height);
135 
136     XCAM_DEAD_COPY (CLGeoMapHandler);
137 
138 private:
139     uint32_t                         _output_width;
140     uint32_t                         _output_height;
141     uint32_t                         _map_width, _map_height;
142     uint32_t                         _map_aligned_width;
143     float                            _uint_x, _uint_y;
144     SmartPtr<CLImage>                _input[NV12PlaneMax];
145     SmartPtr<CLImage>                _output[NV12PlaneMax];
146     SmartPtr<CLBuffer>               _geo_map;
147     SmartPtr<CLImage>                _geo_image;
148     bool                             _geo_map_normalized;
149 };
150 
151 SmartPtr<CLImageKernel>
152 create_geo_map_kernel (
153     const SmartPtr<CLContext> &context, SmartPtr<GeoKernelParamCallback> param_cb, bool need_lsc);
154 
155 SmartPtr<CLImageHandler>
156 create_geo_map_handler (const SmartPtr<CLContext> &context, bool need_lsc = false);
157 
158 }
159 
160 #endif //XCAM_CL_GEO_MAP_HANDLER_H