void clsCynoType::CynoType(GlobalHelper &g_GH)
{
BYTE r,g,b,c,y,m,k;
int iWStep, iJStep;
int tmp;
for(int i=0;i<iNR;i++)
{
iWStep = i*pImgSource->widthStep;
for(int j=0;j<iNC;j++)
{
iJStep = j*3;
r = *(uchar*)(pImgSource->imageData + iWStep + iJStep + 2);
g = *(uchar*)(pImgSource->imageData + iWStep + iJStep + 1);
b = *(uchar*)(pImgSource->imageData + iWStep + iJStep + 0);
RGB2CMYK(r,g,b,c,m,y,k);
if(c>m)
if(c>y)
CMYK2RGB(c,0,0,k,r,g,b);
else
CMYK2RGB(0,0,0,k,r,g,b);
else
CMYK2RGB(0,0,0,k,r,g,b);
/*if(c>m)
if(c>y)
CMYK2RGB(c,0,0,0,r,g,b);
else
CMYK2RGB(0,0,y,0,r,g,b);
else
if(m>y)
CMYK2RGB(0,m,0,0,r,g,b);
else
CMYK2RGB(0,0,y,0,r,g,b);
*/
/* if(r == 255 && g==255 && b==255)
{
tmp = (*(uchar*)(pImgSource->imageData + iWStep + iJStep + 2) +
*(uchar*)(pImgSource->imageData + iWStep + iJStep + 1) +
*(uchar*)(pImgSource->imageData + iWStep + iJStep + 0))/3;
r = g = b = tmp;
}*/
*(uchar*)(pImgSource->imageData + iWStep + iJStep + 2) = r;//tmp*0.5 + 220*0.40 + 17*0.10;
*(uchar*)(pImgSource->imageData + iWStep + iJStep + 1) = g;//tmp*0.5 + 227*0.40 + 24*0.10;
*(uchar*)(pImgSource->imageData + iWStep + iJStep + 0) = b;//btmp*0.5 + 84*0.40 + 66*0.10;
}
}
}
RL2_PRIVATE int
rl2_decode_jpeg_scaled (int scale, const unsigned char *jpeg, int jpeg_size,
unsigned int *width, unsigned int *height,
unsigned char *xpixel_type, unsigned char **pixels,
int *pixels_size)
{
/* attempting to create a raster from a JPEG image - supporting rescaled size */
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
unsigned char pixel_type = RL2_PIXEL_UNKNOWN;
int nBands;
int channels;
int inverted = 0;
unsigned char *data = NULL;
unsigned char *p_data;
int data_size;
int i;
int row_stride;
JSAMPARRAY buffer;
if (scale == 1 || scale == 2 || scale == 4 || scale == 8)
;
else
goto error;
cinfo.err = jpeg_std_error (&jerr);
jpeg_create_decompress (&cinfo);
rl2_jpeg_src (&cinfo, (unsigned char *) jpeg, jpeg_size);
jpeg_read_header (&cinfo, TRUE);
if (scale == 8)
{
/* requesting 1:8 scaling */
cinfo.scale_num = 1;
}
else if (scale == 4)
{
/* requesting 1:4 scaling */
cinfo.scale_num = 2;
}
else if (scale == 2)
{
/* requesting 1:2 scaling */
cinfo.scale_num = 4;
}
else
{
/* no scaling, full dimension */
cinfo.scale_num = 8;
}
cinfo.scale_denom = 8;
if ((cinfo.jpeg_color_space == JCS_CMYK)
|| (cinfo.jpeg_color_space == JCS_YCCK))
cinfo.out_color_space = JCS_CMYK;
if (!jpeg_start_decompress (&cinfo))
goto error;
channels = cinfo.output_components;
if (cinfo.out_color_space == JCS_RGB && channels == 3)
{
pixel_type = RL2_PIXEL_RGB;
nBands = 3;
}
else if (cinfo.out_color_space == JCS_GRAYSCALE && channels == 1)
{
pixel_type = RL2_PIXEL_GRAYSCALE;
nBands = 1;
}
else if (cinfo.out_color_space == JCS_CMYK && channels == 4)
{
jpeg_saved_marker_ptr marker;
pixel_type = RL2_PIXEL_RGB;
nBands = 3;
marker = cinfo.marker_list;
while (marker)
{
if ((marker->marker == (JPEG_APP0 + 14))
&& (marker->data_length >= 12)
&& (!strncmp ((const char *) marker->data, "Adobe", 5)))
{
inverted = 1;
break;
}
marker = marker->next;
}
}
else
goto error;
/* creating the scanline buffer */
row_stride = cinfo.output_width * cinfo.output_components;
buffer =
(*cinfo.mem->alloc_sarray) ((j_common_ptr) & cinfo, JPOOL_IMAGE,
row_stride, 1);
if (buffer == NULL)
goto error;
/* creating the raster data */
data_size = cinfo.output_width * cinfo.output_height * nBands;
data = malloc (data_size);
if (data == NULL)
goto error;
p_data = data;
while (cinfo.output_scanline < cinfo.output_height)
{
/* reading all decompressed scanlines */
jpeg_read_scanlines (&cinfo, buffer, 1);
if (cinfo.out_color_space == JCS_CMYK)
{
JSAMPROW row = buffer[0];
for (i = 0; i < (int) (cinfo.output_width); i++)
{
CMYK2RGB (*(row + 0), *(row + 1), *(row + 2),
*(row + 3), inverted, p_data);
row += 4;
p_data += 3;
}
}
else if (cinfo.out_color_space == JCS_GRAYSCALE)
{
JSAMPROW row = buffer[0];
for (i = 0; i < (int) (cinfo.output_width); i++)
*p_data++ = *row++;
}
else
{
/* RGB */
JSAMPROW row = buffer[0];
for (i = 0; i < (int) (cinfo.output_width); i++)
{
*p_data++ = *row++;
*p_data++ = *row++;
*p_data++ = *row++;
}
}
}
*width = cinfo.output_width;
*height = cinfo.output_height;
*xpixel_type = pixel_type;
*pixels = data;
*pixels_size = data_size;
/* memory cleanup */
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
return RL2_OK;
error:
jpeg_destroy_decompress (&cinfo);
if (data != NULL)
free (data);
return RL2_ERROR;
}
