fixed issues with ocl nv12 cvt kernel finisged ocl nv12-to-rgba kernel, update dx-interop samples. (ocl rgba-to-nv12 kernel will be added later) an attempt to fix build issue fix for non opencl build issue fix typo fix compilation warnings fix compile issue for Mac (OpenCL) add convertion from rgba to nv12 (still need to debug kernel) remove empty line at the EOF fixed compilation warningpull/4238/head
Vladimir Dudnik
10 years ago
parent
c0b544af70
commit
d4774ead43
7 changed files with 636 additions and 129 deletions
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/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved. |
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// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved. |
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// Copyright (C) 2013, OpenCV Foundation, all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// @Authors |
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// Jia Haipeng, jiahaipeng95@gmail.com |
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// |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors as is and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the copyright holders or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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|
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#ifdef DOUBLE_SUPPORT |
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#ifdef cl_amd_fp64 |
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#pragma OPENCL EXTENSION cl_amd_fp64:enable |
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#elif defined cl_khr_fp64 |
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#pragma OPENCL EXTENSION cl_khr_fp64:enable |
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#endif |
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#endif |
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|
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#ifdef INTEL_DEVICE |
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#pragma OPENCL FP_CONTRACT ON |
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#pragma OPENCL FP_FAST_FMAF ON |
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#pragma OPENCL FP_FAST_FMA ON |
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#endif |
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|
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static |
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__constant |
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float c_YUV2RGBCoeffs_420[5] = |
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{ |
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1.163999557f, |
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2.017999649f, |
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-0.390999794f, |
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-0.812999725f, |
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1.5959997177f |
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}; |
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|
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|
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__kernel |
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void YUV2RGBA_NV12_8u( |
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read_only image2d_t imgY, |
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read_only image2d_t imgUV, |
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__global unsigned char* pRGBA, |
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int rgbaStep, |
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int cols, |
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int rows) |
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{ |
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int x = get_global_id(0); |
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int y = get_global_id(1); |
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if (x < cols) |
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{ |
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if (y < rows) |
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{ |
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__global uchar* pDstRow1 = pRGBA + mad24(y, rgbaStep, mad24(x, 4, 0)); |
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__global uchar* pDstRow2 = pDstRow1 + rgbaStep; |
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|
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float4 Y1 = read_imagef(imgY, (int2)(x+0, y+0)) * 255.0f; |
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float4 Y2 = read_imagef(imgY, (int2)(x+1, y+0)) * 255.0f; |
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float4 Y3 = read_imagef(imgY, (int2)(x+0, y+1)) * 255.0f; |
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float4 Y4 = read_imagef(imgY, (int2)(x+1, y+1)) * 255.0f; |
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float4 UV = read_imagef(imgUV, (int2)(x/2, y/2)) * 255.0f - 128.0f; |
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__constant float* coeffs = c_YUV2RGBCoeffs_420; |
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float ruv = fma(coeffs[4], UV.y, 0.5f); |
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float guv = fma(coeffs[3], UV.y, fma(coeffs[2], UV.x, 0.5f)); |
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float buv = fma(coeffs[1], UV.x, 0.5f); |
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Y1 = max(0.f, Y1 - 16.f) * coeffs[0]; |
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pDstRow1[0+0] = convert_uchar_sat(Y1.x + ruv); |
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pDstRow1[1+0] = convert_uchar_sat(Y1.x + guv); |
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pDstRow1[2+0] = convert_uchar_sat(Y1.x + buv); |
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pDstRow1[3+0] = 255; |
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Y2 = max(0.f, Y2 - 16.f) * coeffs[0]; |
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pDstRow1[0+4] = convert_uchar_sat(Y2.x + ruv); |
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pDstRow1[1+4] = convert_uchar_sat(Y2.x + guv); |
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pDstRow1[2+4] = convert_uchar_sat(Y2.x + buv); |
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pDstRow1[3+4] = 255; |
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Y3 = max(0.f, Y3 - 16.f) * coeffs[0]; |
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pDstRow2[0+0] = convert_uchar_sat(Y3.x + ruv); |
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pDstRow2[1+0] = convert_uchar_sat(Y3.x + guv); |
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pDstRow2[2+0] = convert_uchar_sat(Y3.x + buv); |
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pDstRow2[3+0] = 255; |
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Y4 = max(0.f, Y4 - 16.f) * coeffs[0]; |
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pDstRow2[0+4] = convert_uchar_sat(Y4.x + ruv); |
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pDstRow2[1+4] = convert_uchar_sat(Y4.x + guv); |
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pDstRow2[2+4] = convert_uchar_sat(Y4.x + buv); |
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pDstRow2[3+4] = 255; |
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} |
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} |
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} |
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static |
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__constant float c_RGB2YUVCoeffs_420[8] = |
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{ |
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0.256999969f, 0.50399971f, 0.09799957f, -0.1479988098f, |
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-0.2909994125f, 0.438999176f, -0.3679990768f, -0.0709991455f |
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}; |
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#define scn 4 |
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__kernel |
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void RGBA2YUV_NV12_8u( |
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__global unsigned char* pRGBA, |
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int rgbaStep, |
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int cols, |
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int rows, |
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write_only image2d_t imgY, |
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write_only image2d_t imgUV) |
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{ |
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int x = get_global_id(0); |
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int y = get_global_id(1); |
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if (x < cols) |
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{ |
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if (y < rows) |
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{ |
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__global const uchar* pSrcRow1 = pRGBA + mad24(y, rgbaStep, mad24(x, scn, 0)); |
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__global const uchar* pSrcRow2 = pSrcRow1 + rgbaStep; |
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float4 src_pix1 = convert_float4(vload4(0, pSrcRow1 + 0)); |
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float4 src_pix2 = convert_float4(vload4(0, pSrcRow1 + scn)); |
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float4 src_pix3 = convert_float4(vload4(0, pSrcRow2 + 0)); |
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float4 src_pix4 = convert_float4(vload4(0, pSrcRow2 + scn)); |
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__constant float* coeffs = c_RGB2YUVCoeffs_420; |
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uchar Y1 = convert_uchar_sat(fma(coeffs[0], src_pix1.x, fma(coeffs[1], src_pix1.y, fma(coeffs[2], src_pix1.z, 16.5f)))); |
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uchar Y2 = convert_uchar_sat(fma(coeffs[0], src_pix2.x, fma(coeffs[1], src_pix2.y, fma(coeffs[2], src_pix2.z, 16.5f)))); |
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uchar Y3 = convert_uchar_sat(fma(coeffs[0], src_pix3.x, fma(coeffs[1], src_pix3.y, fma(coeffs[2], src_pix3.z, 16.5f)))); |
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uchar Y4 = convert_uchar_sat(fma(coeffs[0], src_pix4.x, fma(coeffs[1], src_pix4.y, fma(coeffs[2], src_pix4.z, 16.5f)))); |
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write_imageui(imgY, (int2)(x+0, y+0), Y1); |
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write_imageui(imgY, (int2)(x+1, y+0), Y2); |
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write_imageui(imgY, (int2)(x+0, y+1), Y3); |
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write_imageui(imgY, (int2)(x+1, y+1), Y4); |
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float uf = fma(coeffs[3], src_pix1.x, fma(coeffs[4], src_pix1.y, fma(coeffs[5], src_pix1.z, 128.5f))); |
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float vf = fma(coeffs[5], src_pix1.x, fma(coeffs[6], src_pix1.y, fma(coeffs[7], src_pix1.z, 128.5f))); |
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uchar U = convert_uchar_sat(uf); |
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uchar V = convert_uchar_sat(vf); |
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write_imageui(imgUV, (int2)((x/2)+0, (y/2)), U); |
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write_imageui(imgUV, (int2)((x/2)+1, (y/2)), V); |
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} |
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} |
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} |
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