jpeg.c

 
#include <freerdp/config.h>
 
#include <winpr/stream.h>
#include <winpr/image.h>
 
#include <freerdp/codec/color.h>
 
#include <freerdp/codec/jpeg.h>
 
#ifdef WITH_JPEG
 
/* jpeg decompress */
BOOL jpeg_decompress(const BYTE* input, BYTE* output, int width, int height, int size, int bpp)
{
  BOOL rc = FALSE;
 
  if (bpp != 24)
    return FALSE;
  if (width <= 0)
    return FALSE;
  if (height <= 0)
    return FALSE;
  if (size <= 0)
    return FALSE;
 
  wImage* image = winpr_image_new();
  if (!image)
    goto fail;
 
  if (winpr_image_read_buffer(image, input, WINPR_ASSERTING_INT_CAST(size_t, size)) <= 0)
    goto fail;
 
  if ((image->width != WINPR_ASSERTING_INT_CAST(size_t, width)) ||
      (image->height != WINPR_ASSERTING_INT_CAST(size_t, height)) ||
      (image->bitsPerPixel != WINPR_ASSERTING_INT_CAST(size_t, bpp)))
    goto fail;
 
  memcpy(output, image->data, 1ull * image->scanline * image->height);
  rc = TRUE;
 
fail:
  winpr_image_free(image, TRUE);
  return rc;
}
 
#else
 
BOOL jpeg_decompress(WINPR_ATTR_UNUSED const BYTE* input, WINPR_ATTR_UNUSED BYTE* output,
                     WINPR_ATTR_UNUSED int width, WINPR_ATTR_UNUSED int height,
                     WINPR_ATTR_UNUSED int size, WINPR_ATTR_UNUSED int bpp)
{
  WLog_ERR("TODO", "TODO: implement");
  return 0;
}
 
#endif