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129 lines
4.7 KiB
Plaintext
129 lines
4.7 KiB
Plaintext
/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _BICUBICTEXTURE_CU_
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#define _BICUBICTEXTURE_CU_
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <helper_math.h>
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// includes, cuda
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#include <helper_cuda.h>
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typedef unsigned int uint;
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typedef unsigned char uchar;
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#include "bicubicTexture_kernel.cuh"
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cudaArray *d_imageArray = 0;
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extern "C" void initTexture(int imageWidth, int imageHeight, uchar *h_data) {
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// allocate array and copy image data
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cudaChannelFormatDesc channelDesc =
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cudaCreateChannelDesc(8, 0, 0, 0, cudaChannelFormatKindUnsigned);
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checkCudaErrors(
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cudaMallocArray(&d_imageArray, &channelDesc, imageWidth, imageHeight));
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checkCudaErrors(cudaMemcpy2DToArray(
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d_imageArray, 0, 0, h_data, imageWidth * sizeof(uchar),
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imageWidth * sizeof(uchar), imageHeight, cudaMemcpyHostToDevice));
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free(h_data);
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cudaResourceDesc texRes;
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memset(&texRes, 0, sizeof(cudaResourceDesc));
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texRes.resType = cudaResourceTypeArray;
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texRes.res.array.array = d_imageArray;
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cudaTextureDesc texDescr;
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memset(&texDescr, 0, sizeof(cudaTextureDesc));
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texDescr.normalizedCoords = false;
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texDescr.filterMode = cudaFilterModeLinear;
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texDescr.addressMode[0] = cudaAddressModeClamp;
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texDescr.addressMode[1] = cudaAddressModeClamp;
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texDescr.readMode = cudaReadModeNormalizedFloat;
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checkCudaErrors(
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cudaCreateTextureObject(&texObjLinear, &texRes, &texDescr, NULL));
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memset(&texDescr, 0, sizeof(cudaTextureDesc));
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texDescr.normalizedCoords = false;
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texDescr.filterMode = cudaFilterModePoint;
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texDescr.addressMode[0] = cudaAddressModeClamp;
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texDescr.addressMode[1] = cudaAddressModeClamp;
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texDescr.readMode = cudaReadModeNormalizedFloat;
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checkCudaErrors(
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cudaCreateTextureObject(&texObjPoint, &texRes, &texDescr, NULL));
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}
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extern "C" void freeTexture() {
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checkCudaErrors(cudaDestroyTextureObject(texObjPoint));
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checkCudaErrors(cudaDestroyTextureObject(texObjLinear));
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checkCudaErrors(cudaFreeArray(d_imageArray));
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}
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// render image using CUDA
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extern "C" void render(int width, int height, float tx, float ty, float scale,
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float cx, float cy, dim3 blockSize, dim3 gridSize,
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int filter_mode, uchar4 *output) {
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// call CUDA kernel, writing results to PBO memory
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switch (filter_mode) {
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case MODE_NEAREST:
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d_render<<<gridSize, blockSize>>>(output, width, height, tx, ty, scale,
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cx, cy, texObjPoint);
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break;
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case MODE_BILINEAR:
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d_render<<<gridSize, blockSize>>>(output, width, height, tx, ty, scale,
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cx, cy, texObjLinear);
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break;
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case MODE_BICUBIC:
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d_renderBicubic<<<gridSize, blockSize>>>(output, width, height, tx, ty,
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scale, cx, cy, texObjPoint);
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break;
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case MODE_FAST_BICUBIC:
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d_renderFastBicubic<<<gridSize, blockSize>>>(
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output, width, height, tx, ty, scale, cx, cy, texObjLinear);
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break;
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case MODE_CATROM:
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d_renderCatRom<<<gridSize, blockSize>>>(output, width, height, tx, ty,
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scale, cx, cy, texObjPoint);
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break;
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}
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getLastCudaError("kernel failed");
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}
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#endif
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