1 /* 2 * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <cutils/log.h> 31 #include <string.h> 32 #include <stdlib.h> 33 #include <errno.h> 34 #include "software_converter.h" 35 36 /** Convert YV12 to YCrCb_420_SP */ 37 int convertYV12toYCrCb420SP(const copybit_image_t *src, private_handle_t *yv12_handle) 38 { 39 private_handle_t* hnd = (private_handle_t*)src->handle; 40 41 if(hnd == NULL || yv12_handle == NULL){ 42 ALOGE("Invalid handle"); 43 return -1; 44 } 45 46 // Please refer to the description of YV12 in hardware.h 47 // for the formulae used to calculate buffer sizes and offsets 48 49 // In a copybit_image_t, w is the stride and 50 // stride - horiz_padding is the actual width 51 // vertical stride is the same as height, so not considered 52 unsigned int stride = src->w; 53 unsigned int width = src->w - src->horiz_padding; 54 unsigned int height = src->h; 55 unsigned int y_size = stride * src->h; 56 unsigned int c_width = ALIGN(stride/2, (unsigned int)16); 57 unsigned int c_size = c_width * src->h/2; 58 unsigned int chromaPadding = c_width - width/2; 59 unsigned int chromaSize = c_size * 2; 60 unsigned char* newChroma = (unsigned char *)(yv12_handle->base + y_size); 61 unsigned char* oldChroma = (unsigned char*)(hnd->base + y_size); 62 memcpy((char *)yv12_handle->base,(char *)hnd->base,y_size); 63 64 #if defined(__ARM_HAVE_NEON) && !defined(__aarch64__) 65 /* interleave */ 66 if(!chromaPadding) { 67 unsigned char * t1 = newChroma; 68 unsigned char * t2 = oldChroma; 69 unsigned char * t3 = t2 + chromaSize/2; 70 for(unsigned int i=0; i < (chromaSize/2)>>3; i++) { 71 __asm__ __volatile__ ( 72 "vld1.u8 d0, [%0]! \n" 73 "vld1.u8 d1, [%1]! \n" 74 "vst2.u8 {d0, d1}, [%2]! \n" 75 :"+r"(t2), "+r"(t3), "+r"(t1) 76 : 77 :"memory","d0","d1" 78 ); 79 80 } 81 } 82 #else //__ARM_HAVE_NEON 83 if(!chromaPadding) { 84 for(unsigned int i = 0; i< chromaSize/2; i++) { 85 newChroma[i*2] = oldChroma[i]; 86 newChroma[i*2+1] = oldChroma[i+chromaSize/2]; 87 } 88 89 } 90 #endif 91 // If the image is not aligned to 16 pixels, 92 // convert using the C routine below 93 // r1 tracks the row of the source buffer 94 // r2 tracks the row of the destination buffer 95 // The width/2 checks are to avoid copying 96 // from the padding 97 98 if(chromaPadding) { 99 unsigned int r1 = 0, r2 = 0, i = 0, j = 0; 100 while(r1 < height/2) { 101 if(j == width) { 102 j = 0; 103 r2++; 104 continue; 105 } 106 if (j+1 == width) { 107 newChroma[r2*width + j] = oldChroma[r1*c_width+i]; 108 r2++; 109 newChroma[r2*width] = oldChroma[r1*c_width+i+c_size]; 110 j = 1; 111 } else { 112 newChroma[r2*width + j] = oldChroma[r1*c_width+i]; 113 newChroma[r2*width + j + 1] = oldChroma[r1*c_width+i+c_size]; 114 j+=2; 115 } 116 i++; 117 if (i == width/2 ) { 118 i = 0; 119 r1++; 120 } 121 } 122 } 123 124 return 0; 125 } 126 127 struct copyInfo{ 128 int width; 129 int height; 130 int src_stride; 131 int dst_stride; 132 size_t src_plane1_offset; 133 size_t src_plane2_offset; 134 size_t dst_plane1_offset; 135 size_t dst_plane2_offset; 136 }; 137 138 /* Internal function to do the actual copy of source to destination */ 139 static int copy_source_to_destination(const uintptr_t src_base, 140 const uintptr_t dst_base, 141 copyInfo& info) 142 { 143 if (!src_base || !dst_base) { 144 ALOGE("%s: invalid memory src_base = 0x%p dst_base=0x%p", 145 __FUNCTION__, (void*)src_base, (void*)dst_base); 146 return COPYBIT_FAILURE; 147 } 148 149 int width = info.width; 150 int height = info.height; 151 unsigned char *src = (unsigned char*)src_base; 152 unsigned char *dst = (unsigned char*)dst_base; 153 154 // Copy the luma 155 for (int i = 0; i < height; i++) { 156 memcpy(dst, src, width); 157 src += info.src_stride; 158 dst += info.dst_stride; 159 } 160 161 // Copy plane 1 162 src = (unsigned char*)(src_base + info.src_plane1_offset); 163 dst = (unsigned char*)(dst_base + info.dst_plane1_offset); 164 width = width/2; 165 height = height/2; 166 for (int i = 0; i < height; i++) { 167 memcpy(dst, src, info.src_stride); 168 src += info.src_stride; 169 dst += info.dst_stride; 170 } 171 return 0; 172 } 173 174 175 /* 176 * Function to convert the c2d format into an equivalent Android format 177 * 178 * @param: source buffer handle 179 * @param: destination image 180 * 181 * @return: return status 182 */ 183 int convert_yuv_c2d_to_yuv_android(private_handle_t *hnd, 184 struct copybit_image_t const *rhs) 185 { 186 ALOGD("Enter %s", __FUNCTION__); 187 if (!hnd || !rhs) { 188 ALOGE("%s: invalid inputs hnd=%p rhs=%p", __FUNCTION__, hnd, rhs); 189 return COPYBIT_FAILURE; 190 } 191 192 int ret = COPYBIT_SUCCESS; 193 private_handle_t *dst_hnd = (private_handle_t *)rhs->handle; 194 195 copyInfo info; 196 info.width = rhs->w; 197 info.height = rhs->h; 198 info.src_stride = ALIGN(info.width, 32); 199 info.dst_stride = ALIGN(info.width, 16); 200 switch(rhs->format) { 201 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 202 case HAL_PIXEL_FORMAT_YCrCb_420_SP: { 203 info.src_plane1_offset = info.src_stride*info.height; 204 info.dst_plane1_offset = info.dst_stride*info.height; 205 } break; 206 case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: { 207 // Chroma is 2K aligned for the NV12 encodeable format. 208 info.src_plane1_offset = ALIGN(info.src_stride*info.height, 2048); 209 info.dst_plane1_offset = ALIGN(info.dst_stride*info.height, 2048); 210 } break; 211 default: 212 ALOGE("%s: unsupported format (format=0x%x)", __FUNCTION__, 213 rhs->format); 214 return COPYBIT_FAILURE; 215 } 216 217 ret = copy_source_to_destination((uintptr_t) hnd->base, (uintptr_t) dst_hnd->base, info); 218 return ret; 219 } 220 221 /* 222 * Function to convert the Android format into an equivalent C2D format 223 * 224 * @param: source buffer handle 225 * @param: destination image 226 * 227 * @return: return status 228 */ 229 int convert_yuv_android_to_yuv_c2d(private_handle_t *hnd, 230 struct copybit_image_t const *rhs) 231 { 232 if (!hnd || !rhs) { 233 ALOGE("%s: invalid inputs hnd=%p rhs=%p", __FUNCTION__, hnd, rhs); 234 return COPYBIT_FAILURE; 235 } 236 237 int ret = COPYBIT_SUCCESS; 238 private_handle_t *dst_hnd = (private_handle_t *)rhs->handle; 239 240 copyInfo info; 241 info.width = rhs->w; 242 info.height = rhs->h; 243 info.src_stride = ALIGN(hnd->width, 16); 244 info.dst_stride = ALIGN(info.width, 32); 245 switch(rhs->format) { 246 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 247 case HAL_PIXEL_FORMAT_YCrCb_420_SP: { 248 info.src_plane1_offset = info.src_stride*info.height; 249 info.dst_plane1_offset = info.dst_stride*info.height; 250 } break; 251 case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: { 252 // Chroma is 2K aligned for the NV12 encodeable format. 253 info.src_plane1_offset = ALIGN(info.src_stride*info.height, 2048); 254 info.dst_plane1_offset = ALIGN(info.dst_stride*info.height, 2048); 255 } break; 256 default: 257 ALOGE("%s: unsupported format (format=0x%x)", __FUNCTION__, 258 rhs->format); 259 return -1; 260 } 261 262 ret = copy_source_to_destination((uintptr_t) hnd->base, (uintptr_t) dst_hnd->base, info); 263 return ret; 264 } 265
