Example #1
0
/*
 * GetAttr
 */
static PyObject *
PyDiaImage_GetAttr(PyDiaImage *self, gchar *attr)
{
  if (!strcmp(attr, "__members__"))
    return Py_BuildValue("[ssssss]", "width", "height", 
                                    "rgb_data", "mask_data",
                                    "filename", "uri");
  else if (!strcmp(attr, "width"))
    return PyInt_FromLong(dia_image_width(self->image));
  else if (!strcmp(attr, "height"))
    return PyInt_FromLong(dia_image_height(self->image));
  else if (!strcmp(attr, "filename")) {
    return PyString_FromString(dia_image_filename(self->image));
  }
  else if (!strcmp(attr, "uri")) {
    GError* error = NULL;
    char* s = g_filename_to_uri(dia_image_filename(self->image), NULL, &error);
    if (s) {
      PyObject* py_s = PyString_FromString(s);
      g_free(s);
      return py_s;
    }
    else {
      PyErr_SetString(PyExc_RuntimeError, error->message);
      g_error_free (error);
      return NULL;
    }
  }
  else if (!strcmp(attr, "rgb_data")) {
    unsigned char* s = dia_image_rgb_data(self->image);
    int len = dia_image_width(self->image) * dia_image_height(self->image) * 3;
    PyObject* py_s;

    if (!s)
      return PyErr_NoMemory();
    py_s = PyString_FromStringAndSize((const char *)s, len);
    g_free (s);
    return py_s;
  }
  else if (!strcmp(attr, "mask_data")) {
    unsigned char* s = dia_image_mask_data(self->image);
    int len = dia_image_width(self->image) * dia_image_height(self->image);
    PyObject* py_s;

    if (!s)
      return PyErr_NoMemory();
    py_s = PyString_FromStringAndSize((const char *)s, len);
    g_free (s);
    return py_s;
  }

  PyErr_SetString(PyExc_AttributeError, attr);
  return NULL;
}
Example #2
0
static void
draw_image(DiaRenderer *self,
	   Point *point,
	   real width, real height,
	   DiaImage *image)
{
    WmfRenderer *renderer = WMF_RENDERER (self);
#ifdef DIRECT_WMF
    /* not yet supported in compatibility mode */
#else	
    W32::HBITMAP hBmp;
    int iWidth, iHeight;
    unsigned char* pData = NULL;
    unsigned char* pImg  = NULL;

    DIAG_NOTE(renderer, "draw_image %fx%f @%f,%f\n", 
              width, height, point->x, point->y);

    iWidth  = dia_image_width(image);
    iHeight = dia_image_height(image);
    pImg = dia_image_rgb_data(image);

#if 0 /* only working with 24 bit screen resolution */
    if ((dia_image_width(image)*3) % 4)
    {
        /* transform data to be DWORD aligned */
        int x, y;
        const unsigned char* pIn = NULL;
        unsigned char* pOut = NULL;

        pOut = pData = g_new(unsigned char, ((((iWidth*3-1)/4)+1)*4)*iHeight);

        pIn = pImg;
        for (y = 0; y < iHeight; y++)
        {
            for (x = 0; x < iWidth; x++)
            {
                *pOut++ = *pIn++;
                *pOut++ = *pIn++;
                *pOut++ = *pIn++;
            }
            pOut += (4 - (iWidth*3)%4);
        }

        hBmp = W32::CreateBitmap ( iWidth, iHeight, 1, 24, pData);
    }
Example #3
0
static void
draw_image(DiaRenderer *self,
	   Point *point,
	   real width, real height,
	   DiaImage *image)
{
  DiaPsRenderer *renderer = DIA_PS_RENDERER(self);
  int img_width, img_height, img_rowstride;
  int x, y;
  guint8 *rgb_data;
  guint8 *mask_data;
  gchar d1_buf[DTOSTR_BUF_SIZE];
  gchar d2_buf[DTOSTR_BUF_SIZE];

  img_width = dia_image_width(image);
  img_rowstride = dia_image_rowstride(image);
  img_height = dia_image_height(image);

  rgb_data = dia_image_rgb_data(image);
  if (!rgb_data) {
    dia_context_add_message(renderer->ctx, _("Not enough memory for image drawing."));
    return;
  }
  mask_data = dia_image_mask_data(image);

  fprintf(renderer->file, "gs\n");

  /* color output only */
  fprintf(renderer->file, "/pix %i string def\n", img_width * 3);
  fprintf(renderer->file, "%i %i 8\n", img_width, img_height);
  fprintf(renderer->file, "%s %s tr\n",
			   psrenderer_dtostr(d1_buf, point->x),
			   psrenderer_dtostr(d2_buf, point->y) );
  fprintf(renderer->file, "%s %s sc\n",
			   psrenderer_dtostr(d1_buf, width),
			   psrenderer_dtostr(d2_buf, height) );
  fprintf(renderer->file, "[%i 0 0 %i 0 0]\n", img_width, img_height);

  fprintf(renderer->file, "{currentfile pix readhexstring pop}\n");
  fprintf(renderer->file, "false 3 colorimage\n");
  fprintf(renderer->file, "\n");

  if (mask_data) {
    for (y = 0; y < img_height; y++) {
      for (x = 0; x < img_width; x++) {
	int i = y*img_rowstride+x*3;
	int m = y*img_width+x;
        fprintf(renderer->file, "%02x", 255-(mask_data[m]*(255-rgb_data[i])/255));
        fprintf(renderer->file, "%02x", 255-(mask_data[m]*(255-rgb_data[i+1])/255));
        fprintf(renderer->file, "%02x", 255-(mask_data[m]*(255-rgb_data[i+2])/255));
      }
      fprintf(renderer->file, "\n");
    }
  } else {
    for (y = 0; y < img_height; y++) {
      for (x = 0; x < img_width; x++) {
	int i = y*img_rowstride+x*3;
        fprintf(renderer->file, "%02x", (int)(rgb_data[i]));
        fprintf(renderer->file, "%02x", (int)(rgb_data[i+1]));
        fprintf(renderer->file, "%02x", (int)(rgb_data[i+2]));
      }
      fprintf(renderer->file, "\n");
    }
  }
  fprintf(renderer->file, "gr\n");
  fprintf(renderer->file, "\n");
   
  g_free(rgb_data);
  g_free(mask_data);
}
Example #4
0
File: wpg.c Project: mpuels/dia
static void
draw_image(DiaRenderer *self,
           Point *point,
           real width, real height,
           DiaImage *image)
{
  WpgRenderer *renderer = WPG_RENDERER (self);
  WPGBitmap2 bmp;
  guint8 * pDiaImg = NULL, * pOut = NULL, * pIn = NULL, * p = NULL;
  guint8 b_1 = 0, b = 0, cnt;
  int x, y, stride;

  bmp.Angle  = 0;
  bmp.Left   = SCX(point->x);
  bmp.Top    = SCY(-point->y);
  bmp.Right  = SCX(point->x + width);
  bmp.Bottom = SCY(-point->y - height);

  bmp.Width  = dia_image_width(image);
  bmp.Height = dia_image_height(image);
  bmp.Depth  = 8; /* maximum allowed */

  bmp.Xdpi = 72; /* ??? */
  bmp.Ydpi = 72;

  DIAG_NOTE(g_message("draw_image %fx%f [%d,%d] @%f,%f", 
            width, height, bmp.Width, bmp.Height, point->x, point->y));

  pDiaImg = dia_image_rgb_data(image);
  if (!pDiaImg) {
    dia_context_add_message(renderer->ctx, _("Not enough memory for image drawing."));
    return;
  }
  stride = dia_image_rowstride(image);
  pOut = g_new(guint8, bmp.Width * bmp.Height * 2); /* space for worst case RLE */
  p = pOut;

  for (y = 0; y < bmp.Height; y++)
  {
    /* from top to bottom line */
    pIn = pDiaImg + stride * y;
    cnt = 0; /* reset with every line */
    for (x = 0; x < bmp.Width; x ++)
    {
      /* simple color reduction to default palette */
      b = (((CC_LEN - 1) * pIn[0]) / 255) /* red */
        + (((CC_LEN - 1) * pIn[1]) / 255) * CC_LEN /* green */
        + (((CC_LEN - 1) * pIn[2]) / 255) * CC_LEN * CC_LEN /* blue */
        + WPG_NUM_DEF_COLORS;

      pIn += 3; /* increase read pointer */

      if (cnt > 0)
      {
        if ((b == b_1) && (cnt < 127)) 
          cnt++; /* increase counter*/
        else
        {
          *p++ = (cnt | 0x80); /* write run length and value */
          *p++ = b_1;
          cnt = 1; /* reset */
          b_1 = b;
        }
      }
      else
      {
        b_1 = b;
        cnt = 1;
      }
    }
    *p++ = (cnt | 0x80); /* write last value(s) */
    *p++ = b;
  }
  DIAG_NOTE(g_message( "Width x Height: %d RLE: %d", 
	      bmp.Width * bmp.Height, p - pOut));

  if ((p - pOut) > 32767) {
    dia_context_add_message(renderer->ctx, "Bitmap size exceeds blocksize. Ignored.");
  }
  else {
    WriteRecHead(renderer, WPG_BITMAP2, sizeof(WPGBitmap2) + (p - pOut));
#if 0
    fwrite(&bmp, sizeof(WPGBitmap2), 1, renderer->file);
#else
    g_assert(20 == sizeof(WPGBitmap2));
    fwrite(&bmp, sizeof(guint16), sizeof(WPGBitmap2) / sizeof(guint16), renderer->file);
#endif
    fwrite(pOut, sizeof(guint8), p - pOut, renderer->file);
  }
#if 0
  /* RLE diagnose */
  {
    FILE* f;
    int i, j;
    f = g_fopen("c:\\temp\\wpg_bmp.raw", "wb");
    j = p - pOut;
    for (i = 0; i < j; i+=2)
    {
      for (x = 0; x < (pOut[i] & 0x7F); x++) 
        fwrite(&pOut[i+1], 1, 1, f);
    }
    fclose(f);
  }
#endif
  g_free(pDiaImg);
  g_free(pOut);
}
Example #5
0
static void
draw_image(DiaRenderer *self,
           Point *point,
           real width, real height,
           DiaImage *image)
{
  DiaCairoRenderer *renderer = DIA_CAIRO_RENDERER (self);
  cairo_surface_t *surface;
  guint8 *data;
  int w = dia_image_width(image);
  int h = dia_image_height(image);
  int rs = dia_image_rowstride(image);

  DIAG_NOTE(g_message("draw_image %fx%f [%d(%d),%d] @%f,%f", 
            width, height, w, rs, h, point->x, point->y));

  if (dia_image_rgba_data (image))
    {
      const guint8 *p1 = dia_image_rgba_data (image);
      /* we need to make a copy to rearrange channels 
       * (also need to use malloc, cause Cairo insists to free() it)
       */
      guint8 *p2 = data = g_malloc (h * rs);
      int i;

      for (i = 0; i < (h * rs) / 4; i++)
        {
#  if G_BYTE_ORDER == G_LITTLE_ENDIAN
          p2[0] = p1[2]; /* b */
          p2[1] = p1[1]; /* g */
          p2[2] = p1[0]; /* r */
          p2[3] = p1[3]; /* a */
#  else
          p2[3] = p1[2]; /* b */
          p2[2] = p1[1]; /* g */
          p2[1] = p1[0]; /* r */
          p2[0] = p1[3]; /* a */
#  endif
          p1+=4;
          p2+=4;
        }

      surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_ARGB32, w, h, rs);
    }
  else
    {
      guint8 *p, *p2;
      guint8 *p1 = data = dia_image_rgb_data (image);
      /* need to copy to be owned by cairo/pixman, urgh.
       * Also cairo wants RGB24 32 bit aligned
       */
      int x, y;

      p = p2 = g_malloc(h*w*4);
      for (y = 0; y < h; y++)
        {
          for (x = 0; x < w; x++)
            {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
              /* apparently BGR is required */
              p2[x*4  ] = p1[x*3+2];
              p2[x*4+1] = p1[x*3+1];
              p2[x*4+2] = p1[x*3  ];
              p2[x*4+3] = 0x80; /* should not matter */
#else
              p2[x*4+3] = p1[x*3+2];
              p2[x*4+2] = p1[x*3+1];
              p2[x*4+1] = p1[x*3  ];
              p2[x*4+0] = 0x80; /* should not matter */
#endif
            }
          p2 += (w*4);
          p1 += rs;
        }
      surface = cairo_image_surface_create_for_data (p, CAIRO_FORMAT_RGB24, w, h, w*4);
      g_free (data);
      data = p;
    }
  cairo_save (renderer->cr);
  cairo_translate (renderer->cr, point->x, point->y);
  cairo_scale (renderer->cr, width/w, height/h);
  cairo_move_to (renderer->cr, 0.0, 0.0);
  /* maybe just the second set_filter is required */
#if 0
  cairo_surface_set_filter (renderer->surface, CAIRO_FILTER_BEST);
  cairo_surface_set_filter (surface, CAIRO_FILTER_BEST);
#endif
  cairo_set_source_surface (renderer->cr, surface, 0.0, 0.0);
  cairo_paint (renderer->cr);
  cairo_restore (renderer->cr);
  cairo_surface_destroy (surface);

  g_free (data);

  DIAG_STATE(renderer->cr);
}