diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/isp/kernels/tnr/tnr3/ia_css_tnr3_types.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/isp/kernels/tnr/tnr3/ia_css_tnr3_types.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/tnr/tnr3/ia_css_tnr3_types.h b/drivers/staging/media/atomisp/pci/isp/kernels/tnr/tnr3/ia_css_tnr3_types.h new file mode 100644 index 000000000000..349f0800bbe6 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/tnr/tnr3/ia_css_tnr3_types.h @@ -0,0 +1,63 @@ +/** +Support for Intel Camera Imaging ISP subsystem. +Copyright (c) 2010 - 2015, Intel Corporation. + +This program is free software; you can redistribute it and/or modify it +under the terms and conditions of the GNU General Public License, +version 2, as published by the Free Software Foundation. + +This program is distributed in the hope it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +more details. +*/ + +#ifndef _IA_CSS_TNR3_TYPES_H +#define _IA_CSS_TNR3_TYPES_H + +/* @file +* CSS-API header file for Temporal Noise Reduction v3 (TNR3) kernel +*/ + +/** + * \brief Number of piecewise linear segments. + * \details The parameters to TNR3 are specified as a piecewise linear segment. + * The number of such segments is fixed at 3. + */ +#define TNR3_NUM_SEGMENTS 3 + +/* Temporal Noise Reduction v3 (TNR3) configuration. + * The parameter to this kernel is fourfold + * 1. Three piecewise linear graphs (one for each plane) with three segments + * each. Each line graph has Luma values on the x axis and sigma values for + * each plane on the y axis. The three linear segments may have a different + * slope and the point of Luma value which where the slope may change is called + * a "Knee" point. As there are three such segments, four points need to be + * specified each on the Luma axis and the per plane Sigma axis. On the Luma + * axis two points are fixed (namely 0 and maximum luma value - depending on + * ISP bit depth). The other two points are the points where the slope may + * change its value. These two points are called knee points. The four points on + * the per plane sigma axis are also specified at the interface. + * 2. One rounding adjustment parameter for each plane + * 3. One maximum feedback threshold value for each plane + * 4. Selection of the reference frame buffer to be used for noise reduction. + */ +struct ia_css_tnr3_kernel_config { + unsigned int maxfb_y; /** Maximum Feedback Gain for Y */ + unsigned int maxfb_u; /** Maximum Feedback Gain for U */ + unsigned int maxfb_v; /** Maximum Feedback Gain for V */ + unsigned int round_adj_y; /** Rounding Adjust for Y */ + unsigned int round_adj_u; /** Rounding Adjust for U */ + unsigned int round_adj_v; /** Rounding Adjust for V */ + unsigned int knee_y[TNR3_NUM_SEGMENTS - 1]; /** Knee points */ + unsigned int sigma_y[TNR3_NUM_SEGMENTS + + 1]; /** Standard deviation for Y at points Y0, Y1, Y2, Y3 */ + unsigned int sigma_u[TNR3_NUM_SEGMENTS + + 1]; /** Standard deviation for U at points U0, U1, U2, U3 */ + unsigned int sigma_v[TNR3_NUM_SEGMENTS + + 1]; /** Standard deviation for V at points V0, V1, V2, V3 */ + unsigned int + ref_buf_select; /** Selection of the reference buffer */ +}; + +#endif |