src/tdm_helper.c

   1 #ifdef HAVE_CONFIG_H
   2 #include "config.h"
   3 #endif
   4
   5 #include <png.h>
   6 #include <string.h>
   7 #include <tbm_surface.h>
   8 #include <tbm_surface_internal.h>
   9 #include <string.h>
  10
  11 #include "tdm.h"
  12 #include "tdm_private.h"
  13
  14 #define PNG_DEPTH 8
  15
  16 static const char *dump_prefix[2] = {"png", "yuv"};
  17
  18 static void
  19 _tdm_helper_dump_raw(const char *file, void *data1, int size1, void *data2,
  20                      int size2, void *data3, int size3)
  21 {
  22     unsigned int *blocks;
  23     FILE *fp = fopen(file, "w+");
  24     TDM_RETURN_IF_FAIL(fp != NULL);
  25
  26     blocks = (unsigned int*)data1;
  27     fwrite(blocks, 1, size1, fp);
  28
  29     if (size2 > 0)
  30     {
  31         blocks = (unsigned int*)data2;
  32         fwrite(blocks, 1, size2, fp);
  33     }
  34
  35     if (size3 > 0)
  36     {
  37         blocks = (unsigned int*)data3;
  38         fwrite(blocks, 1, size3, fp);
  39     }
  40
  41     fclose(fp);
  42 }
  43
  44 static void
  45 _tdm_helper_dump_png(const char *file, const void *data, int width,
  46                      int height)
  47 {
  48     FILE *fp = fopen(file, "wb");
  49     TDM_RETURN_IF_FAIL(fp != NULL);
  50
  51     png_structp pPngStruct =
  52         png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
  53     if (!pPngStruct)
  54     {
  55         fclose(fp);
  56         return;
  57     }
  58
  59     png_infop pPngInfo = png_create_info_struct(pPngStruct);
  60     if (!pPngInfo)
  61     {
  62         png_destroy_write_struct(&pPngStruct, NULL);
  63         fclose(fp);
  64         return;
  65     }
  66
  67     png_init_io(pPngStruct, fp);
  68     png_set_IHDR(pPngStruct,
  69                  pPngInfo,
  70                  width,
  71                  height,
  72                  PNG_DEPTH,
  73                  PNG_COLOR_TYPE_RGBA,
  74                  PNG_INTERLACE_NONE,
  75                  PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
  76
  77     png_set_bgr(pPngStruct);
  78     png_write_info(pPngStruct, pPngInfo);
  79
  80     const int pixel_size = 4;   // RGBA
  81     png_bytep *row_pointers =
  82         png_malloc(pPngStruct, height * sizeof(png_byte*));
  83
  84     unsigned int *blocks = (unsigned int*)data;
  85     int y = 0;
  86     int x = 0;
  87
  88     for (; y < height; ++y)
  89     {
  90         png_bytep row =
  91             png_malloc(pPngStruct, sizeof(png_byte) * width * pixel_size);
  92         row_pointers[y] = (png_bytep)row;
  93         for (x = 0; x < width; ++x)
  94         {
  95             unsigned int curBlock = blocks[y * width + x];
  96             row[x * pixel_size] = (curBlock & 0xFF);
  97             row[1 + x * pixel_size] = (curBlock >> 8) & 0xFF;
  98             row[2 + x * pixel_size] = (curBlock >> 16) & 0xFF;
  99             row[3 + x * pixel_size] = (curBlock >> 24) & 0xFF;
 100         }
 101     }
 102
 103     png_write_image(pPngStruct, row_pointers);
 104     png_write_end(pPngStruct, pPngInfo);
 105
 106     for (y = 0; y < height; y++)
 107         png_free(pPngStruct, row_pointers[y]);
 108     png_free(pPngStruct, row_pointers);
 109
 110     png_destroy_write_struct(&pPngStruct, &pPngInfo);
 111
 112     fclose(fp);
 113 }
 114
 115 EXTERN void
 116 tdm_helper_dump_buffer(tbm_surface_h buffer, const char *file)
 117 {
 118     tbm_surface_info_s info;
 119     int len;
 120     const char *prefix;
 121
 122     TDM_RETURN_IF_FAIL(buffer != NULL);
 123     TDM_RETURN_IF_FAIL(file != NULL);
 124
 125     tbm_surface_get_info(buffer, &info);
 126
 127     len = strnlen(file, 1024);
 128     if (info.format == TBM_FORMAT_ARGB8888 || info.format == TBM_FORMAT_XRGB8888)
 129         prefix = dump_prefix[0];
 130     else
 131         prefix = dump_prefix[1];
 132
 133     if (strncmp(file + (len - 3), prefix, 3))
 134     {
 135         TDM_ERR("can't dump to '%s' file", file + (len - 3));
 136         return;
 137     }
 138
 139     switch(info.format)
 140     {
 141     case TBM_FORMAT_ARGB8888:
 142     case TBM_FORMAT_XRGB8888:
 143         _tdm_helper_dump_png(file, info.planes[0].ptr,
 144                              info.planes[0].stride >> 2, info.height);
 145         break;
 146     case TBM_FORMAT_YVU420:
 147     case TBM_FORMAT_YUV420:
 148         _tdm_helper_dump_raw(file,
 149                              info.planes[0].ptr + info.planes[0].offset,
 150                              info.planes[0].stride * info.height,
 151                              info.planes[1].ptr + info.planes[1].offset,
 152                              info.planes[1].stride * (info.height >> 1),
 153                              info.planes[2].ptr + info.planes[2].offset,
 154                              info.planes[2].stride * (info.height >> 1));
 155         break;
 156     case TBM_FORMAT_NV12:
 157     case TBM_FORMAT_NV21:
 158         _tdm_helper_dump_raw(file,
 159                              info.planes[0].ptr + info.planes[0].offset,
 160                              info.planes[0].stride * info.height,
 161                              info.planes[1].ptr + info.planes[1].offset,
 162                              info.planes[1].stride * (info.height >> 1), NULL,
 163                              0);
 164         break;
 165     case TBM_FORMAT_YUYV:
 166     case TBM_FORMAT_UYVY:
 167         _tdm_helper_dump_raw(file,
 168                              info.planes[0].ptr + info.planes[0].offset,
 169                              info.planes[0].stride * info.height, NULL, 0,
 170                              NULL, 0);
 171         break;
 172     default:
 173         TDM_ERR("can't dump %c%c%c%c buffer", FOURCC_STR (info.format));
 174         return;
 175     }
 176
 177     TDM_INFO("dump %s", file);
 178 }