/*
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* cl_blender.h - CL blender
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*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#ifndef XCAM_CL_BLENDER_H
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#define XCAM_CL_BLENDER_H
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#include <xcam_std.h>
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#include <interface/data_types.h>
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#include <interface/blender.h>
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#include <ocl/cl_image_handler.h>
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#define XCAM_CL_BLENDER_ALIGNMENT_X 8
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#define XCAM_CL_BLENDER_ALIGNMENT_Y 1
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namespace XCam {
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enum CLBlenderScaleMode {
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CLBlenderScaleLocal = 0,
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CLBlenderScaleGlobal,
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CLBlenderScaleMax
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};
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enum {
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CLBlenderPlaneY = 0,
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CLBlenderPlaneUV,
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CLBlenderPlaneMax,
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};
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class CLBlenderScaleKernel
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: public CLImageKernel
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{
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public:
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explicit CLBlenderScaleKernel (const SmartPtr<CLContext> &context, bool is_uv);
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protected:
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virtual XCamReturn prepare_arguments (
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CLArgList &args, CLWorkSize &work_size);
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virtual SmartPtr<CLImage> get_input_image () = 0;
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virtual SmartPtr<CLImage> get_output_image () = 0;
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virtual bool get_output_info (uint32_t &out_width, uint32_t &out_height, int &out_offset_x) = 0;
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private:
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XCAM_DEAD_COPY (CLBlenderScaleKernel);
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protected:
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bool _is_uv;
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};
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class CLBlender
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: public CLImageHandler, public Blender
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{
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public:
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explicit CLBlender (
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const SmartPtr<CLContext> &context, const char *name,
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bool need_uv, CLBlenderScaleMode scale_mode);
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//derived from Blender
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virtual bool set_input_merge_area (const Rect &area, uint32_t index);
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bool need_uv () const {
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return _need_uv;
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}
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CLBlenderScaleMode get_scale_mode () const {
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return _scale_mode;
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}
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void swap_input_idx (bool flag) {
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_swap_input_index = flag;
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}
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protected:
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virtual XCamReturn prepare_parameters (SmartPtr<VideoBuffer> &input, SmartPtr<VideoBuffer> &output);
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virtual XCamReturn prepare_buffer_pool_video_info (
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const VideoBufferInfo &input,
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VideoBufferInfo &output);
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//abstract virtual functions
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virtual XCamReturn allocate_cl_buffers (
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SmartPtr<CLContext> context, SmartPtr<VideoBuffer> &input0,
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SmartPtr<VideoBuffer> &input1, SmartPtr<VideoBuffer> &output) = 0;
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private:
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XCAM_DEAD_COPY (CLBlender);
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private:
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bool _need_uv;
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bool _swap_input_index;
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CLBlenderScaleMode _scale_mode;
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};
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SmartPtr<CLImageHandler>
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create_linear_blender (const SmartPtr<CLContext> &context, bool need_uv = true);
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SmartPtr<CLImageHandler>
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create_pyramid_blender (
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const SmartPtr<CLContext> &context, int layer = 1, bool need_uv = true,
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bool need_seam = true, CLBlenderScaleMode scale_mode = CLBlenderScaleLocal);
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};
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#endif //XCAM_CL_BLENDER_H
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