test/loadsurface.h

   1 /*
   2  * Copyright (c) 2008-2009 Intel Corporation. All Rights Reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sub license, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24 #include "loadsurface_yuv.h"
  25
  26 static int scale_2dimage(unsigned char *src_img, int src_imgw, int src_imgh,
  27                   unsigned char *dst_img, int dst_imgw, int dst_imgh)
  28 {
  29     int row=0, col=0;
  30
  31     for (row=0; row<dst_imgh; row++) {
  32         for (col=0; col<dst_imgw; col++) {
  33             *(dst_img + row * dst_imgw + col) = *(src_img + (row * src_imgh/dst_imgh) * src_imgw + col * src_imgw/dst_imgw);
  34         }
  35     }
  36
  37     return 0;
  38 }
  39
  40
  41 static int YUV_blend_with_pic(int width, int height,
  42             unsigned char *Y_start, int Y_pitch,
  43             unsigned char *U_start, int U_pitch,
  44             unsigned char *V_start, int V_pitch,
  45             unsigned int fourcc, int fixed_alpha)
  46 {
  47     /* PIC YUV format */
  48     unsigned char *pic_y_old = yuvga_pic;
  49     unsigned char *pic_u_old = pic_y_old + 640*480;
  50     unsigned char *pic_v_old = pic_u_old + 640*480/4;
  51     unsigned char *pic_y, *pic_u, *pic_v;
  52
  53     int alpha_values[] = {100,90,80,70,60,50,40,30,20,30,40,50,60,70,80,90};
  54
  55     static int alpha_idx = 0;
  56     int alpha;
  57     int allocated = 0;
  58
  59     int row, col;
  60
  61     if (fixed_alpha == 0) {
  62         alpha = alpha_values[alpha_idx % 16 ];
  63         alpha_idx ++;
  64     } else
  65         alpha = fixed_alpha;
  66
  67     //alpha = 0;
  68
  69     pic_y = pic_y_old;
  70     pic_u = pic_u_old;
  71     pic_v = pic_v_old;
  72
  73     if (width != 640 || height != 480) { /* need to scale the pic */
  74         pic_y = (unsigned char *)malloc(width * height);
  75         pic_u = (unsigned char *)malloc(width * height/4);
  76         pic_v = (unsigned char *)malloc(width * height/4);
  77
  78         allocated = 1;
  79
  80         scale_2dimage(pic_y_old, 640, 480,
  81                       pic_y, width, height);
  82         scale_2dimage(pic_u_old, 320, 240,
  83                       pic_u, width/2, height/2);
  84         scale_2dimage(pic_v_old, 320, 240,
  85                       pic_v, width/2, height/2);
  86     }
  87
  88     /* begin blend */
  89
  90     /* Y plane */
  91     int Y_pixel_stride = 1;
  92     if (fourcc == VA_FOURCC_YUY2)
  93         Y_pixel_stride = 2;
  94
  95     for (row=0; row<height; row++) {
  96         unsigned char *p = Y_start + row * Y_pitch;
  97         unsigned char *q = pic_y + row * width;
  98         for (col=0; col<width; col++, q++) {
  99             *p  = *p * (100 - alpha) / 100 + *q * alpha/100;
 100             p += Y_pixel_stride;
 101         }
 102     }
 103
 104     /* U/V plane */
 105     int U_pixel_stride, V_pixel_stride;
 106     int v_factor_to_nv12 = 1;
 107     switch (fourcc) {
 108     case VA_FOURCC_YV12:
 109         U_pixel_stride = V_pixel_stride = 1;
 110         break;
 111     case VA_FOURCC_NV12:
 112         U_pixel_stride = V_pixel_stride = 2;
 113         break;
 114     case VA_FOURCC_YUY2:
 115         U_pixel_stride = V_pixel_stride = 4;
 116         v_factor_to_nv12 = 2;
 117         break;
 118     default:
 119         break;
 120     }
 121     for (row=0; row<height/2*v_factor_to_nv12; row++) {
 122         unsigned char *pU = U_start + row * U_pitch;
 123         unsigned char *pV = V_start + row * V_pitch;
 124         unsigned char *qU = pic_u + row/v_factor_to_nv12 * width/2;
 125         unsigned char *qV = pic_v + row/v_factor_to_nv12 * width/2;
 126
 127         for (col=0; col<width/2; col++, qU++, qV++) {
 128             *pU  = *pU * (100 - alpha) / 100 + *qU * alpha/100;
 129             *pV  = *pV * (100 - alpha) / 100 + *qV * alpha/100;
 130
 131             pU += U_pixel_stride;
 132             pV += V_pixel_stride;
 133         }
 134     }
 135
 136
 137     if (allocated) {
 138         free(pic_y);
 139         free(pic_u);
 140         free(pic_v);
 141     }
 142
 143     return 0;
 144 }
 145
 146 static int yuvgen_planar(int width, int height,
 147                          unsigned char *Y_start, int Y_pitch,
 148                          unsigned char *U_start, int U_pitch,
 149                          unsigned char *V_start, int V_pitch,
 150                          unsigned int fourcc, int box_width, int row_shift,
 151                          int field)
 152 {
 153     int row, alpha;
 154     unsigned char uv_value = 0x80;
 155
 156     /* copy Y plane */
 157     int y_factor = 1;
 158         if (fourcc == VA_FOURCC_YUY2) y_factor = 2;
 159     for (row=0;row<height;row++) {
 160         unsigned char *Y_row = Y_start + row * Y_pitch;
 161         int jj, xpos, ypos;
 162
 163         ypos = (row / box_width) & 0x1;
 164
 165         /* fill garbage data into the other field */
 166         if (((field == VA_TOP_FIELD) && (row &1))
 167             || ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
 168             memset(Y_row, 0xff, width);
 169             continue;
 170         }
 171
 172         for (jj=0; jj<width; jj++) {
 173             xpos = ((row_shift + jj) / box_width) & 0x1;
 174             if (xpos == ypos)
 175                 Y_row[jj*y_factor] = 0xeb;
 176             else
 177                 Y_row[jj*y_factor] = 0x10;
 178
 179             if (fourcc == VA_FOURCC_YUY2) {
 180                 Y_row[jj*y_factor+1] = uv_value; // it is for UV
 181                     }
 182         }
 183     }
 184
 185     /* copy UV data */
 186     for( row =0; row < height/2; row++) {
 187
 188         /* fill garbage data into the other field */
 189         if (((field == VA_TOP_FIELD) && (row &1))
 190             || ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
 191             uv_value = 0xff;
 192         }
 193
 194         unsigned char *U_row = U_start + row * U_pitch;
 195         unsigned char *V_row = V_start + row * V_pitch;
 196         switch (fourcc) {
 197         case VA_FOURCC_NV12:
 198             memset(U_row, uv_value, width);
 199                         break;
 200         case VA_FOURCC_YV12:
 201             memset (U_row,uv_value,width/2);
 202             memset (V_row,uv_value,width/2);
 203                         break;
 204         case VA_FOURCC_YUY2:
 205             // see above. it is set with Y update.
 206             break;
 207         default:
 208             printf("unsupported fourcc in loadsurface.h\n");
 209             assert(0);
 210         }
 211     }
 212
 213     if (getenv("AUTO_NOUV"))
 214         return 0;
 215
 216     if (getenv("AUTO_ALPHA"))
 217         alpha = 0;
 218     else
 219         alpha = 70;
 220
 221     YUV_blend_with_pic(width,height,
 222                        Y_start, Y_pitch,
 223                        U_start, U_pitch,
 224                        V_start, V_pitch,
 225                        fourcc, alpha);
 226
 227     return 0;
 228 }
 229
 230 static int upload_surface(VADisplay va_dpy, VASurfaceID surface_id,
 231                           int box_width, int row_shift,
 232                           int field)
 233 {
 234     VAImage surface_image;
 235     void *surface_p=NULL, *U_start,*V_start;
 236     VAStatus va_status;
 237     unsigned int pitches[3];
 238
 239     va_status = vaDeriveImage(va_dpy,surface_id,&surface_image);
 240     CHECK_VASTATUS(va_status,"vaDeriveImage");
 241
 242     vaMapBuffer(va_dpy,surface_image.buf,&surface_p);
 243     assert(VA_STATUS_SUCCESS == va_status);
 244
 245     pitches[0] = surface_image.pitches[0];
 246     switch (surface_image.format.fourcc) {
 247     case VA_FOURCC_NV12:
 248         U_start = (char *)surface_p + surface_image.offsets[1];
 249         V_start = U_start + 1;
 250         pitches[1] = surface_image.pitches[1];
 251         pitches[2] = surface_image.pitches[1];
 252         break;
 253     case VA_FOURCC_IYUV:
 254         U_start = (char *)surface_p + surface_image.offsets[1];
 255         V_start = (char *)surface_p + surface_image.offsets[2];
 256         pitches[1] = surface_image.pitches[1];
 257         pitches[2] = surface_image.pitches[2];
 258         break;
 259     case VA_FOURCC_YV12:
 260         U_start = (char *)surface_p + surface_image.offsets[2];
 261         V_start = (char *)surface_p + surface_image.offsets[1];
 262         pitches[1] = surface_image.pitches[2];
 263         pitches[2] = surface_image.pitches[1];
 264         break;
 265     case VA_FOURCC_YUY2:
 266         U_start = surface_p + 1;
 267         V_start = surface_p + 3;
 268         pitches[1] = surface_image.pitches[0];
 269         pitches[2] = surface_image.pitches[0];
 270         break;
 271     default:
 272         assert(0);
 273     }
 274
 275     /* assume surface is planar format */
 276     yuvgen_planar(surface_image.width, surface_image.height,
 277                   (unsigned char *)surface_p, pitches[0],
 278                   (unsigned char *)U_start, pitches[1],
 279                   (unsigned char *)V_start, pitches[2],
 280                   surface_image.format.fourcc,
 281                   box_width, row_shift, field);
 282
 283     vaUnmapBuffer(va_dpy,surface_image.buf);
 284
 285     vaDestroyImage(va_dpy,surface_image.image_id);
 286
 287     return 0;
 288 }