You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.8 KiB
113 lines
3.8 KiB
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
* Copyright (C) 2016 Mopria Alliance, Inc.
|
|
* Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef LIB_PHOTO_SCALER_H
|
|
#define LIB_PHOTO_SCALER_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "wtypes.h"
|
|
|
|
typedef unsigned char bool_t;
|
|
|
|
/*
|
|
* A 64-bit floating point value
|
|
*/
|
|
typedef struct float64_s {
|
|
uint32 decimal;
|
|
uint32 fraction;
|
|
} float64_t;
|
|
|
|
/*
|
|
* Mode selected for a scaling operation
|
|
*/
|
|
typedef enum scaler_modes_e {
|
|
PSCALER_SCALE_UP = 1,
|
|
PSCALER_SCALE_DOWN = 2,
|
|
PSCALER_SCALE_MIXED_XUP = 5,
|
|
PSCALER_SCALE_MIXED_YUP = 7,
|
|
|
|
PSCALER_SCALE_MODE_INVALID
|
|
} scaler_mode_t;
|
|
|
|
/*
|
|
* Context structure for a scaling operation
|
|
*/
|
|
typedef struct scaler_config_s {
|
|
uint16 iSrcWidth; // input width (x-axis dimension)
|
|
uint16 iSrcHeight; // input height (y-axis dimension)
|
|
|
|
uint16 iOutWidth; // output width (x-axis dimension)
|
|
uint16 iOutHeight; // output height (y-axis dimension)
|
|
|
|
uint8 *pSrcBuf; // input buffers [plane]
|
|
uint16 iSrcBufWidth; // input buffer width (typically source width)
|
|
|
|
uint8 *pOutBuf; // output buffers [plane]
|
|
uint16 iOutBufWidth; // output buffer width
|
|
|
|
uint8 *pTmpBuf; // mixed axis temp buffer
|
|
float64_t fSrcStartRow; // first input row as a float
|
|
uint16 iSrcStartRow; // first input row of this slice
|
|
uint16 iSrcEndRow; // last input row of this slice
|
|
|
|
uint16 iOutStartRow; // first output row of this slice
|
|
uint16 iOutEndRow; // last output row of this slice
|
|
|
|
float64_t fSrcStartColumn; // first input column as a float
|
|
|
|
uint16 iOutStartColumn; // first output column of this slice
|
|
|
|
float64_t fXfactor; // x_factor_int & x_factor_fract
|
|
float64_t fXfactorInv; // x_factor_inv_int & x_factor_inv_fract
|
|
float64_t fYfactor; // y_factor_int & y_factor_fract
|
|
float64_t fYfactorInv; // y_factor_inv_int & y_factor_inv_fract
|
|
|
|
scaler_mode_t scaleMode; // scale mode for the current image
|
|
} scaler_config_t;
|
|
|
|
/*
|
|
* Called once per job to initialize pscaler_config for specified input/output sizes
|
|
*/
|
|
extern void scaler_make_image_scaler_tables(uint16 image_input_width, uint16 image_input_buf_width,
|
|
uint16 image_output_width, uint16 image_output_buf_width, uint16 image_input_height,
|
|
uint16 image_output_height, scaler_config_t *pscaler_config);
|
|
|
|
/*
|
|
* Called once to configure a single image stripe/slice. Must be called after
|
|
* scaler_make_image_scaler_tables.
|
|
*/
|
|
extern void scaler_calculate_scaling_rows(uint16 start_output_row_number,
|
|
uint16 end_output_row_number, void *tables_ptr, uint16 *start_input_row_number,
|
|
uint16 *end_input_row_number, uint16 *num_output_rows_generated,
|
|
uint16 *num_rows_offset_to_start_output_row,
|
|
uint32 *mixed_axis_temp_buffer_size_needed);
|
|
|
|
/*
|
|
* Called after each call to scaler_calculate_scaling_rows to produce scaled output
|
|
*/
|
|
extern void scaler_scale_image_data(uint8 *input_plane, void *tables_ptr,
|
|
uint8 *scaled_output_plane, uint8 *temp_buffer_for_mixed_axis_scaling);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // LIB_PHOTO_SCALER_H
|