Imported Upstream version 0.9.0upstream/0.9.0upstream

Change-Id: I60862786d19d92bb65425923bfeaa8ec236d8722

1 files changed, 15 insertions, 3 deletions

diff --git a/lib/extras/dec/jpg.h b/lib/extras/dec/jpg.h
index 66b3452..6e7b2f7 100644
--- a/lib/extras/dec/jpg.h
+++ b/lib/extras/dec/jpg.h
@@ -13,19 +13,31 @@
 #include "lib/extras/codec.h"
 #include "lib/extras/dec/color_hints.h"
 #include "lib/jxl/base/data_parallel.h"
-#include "lib/jxl/base/padded_bytes.h"
 #include "lib/jxl/base/span.h"
 #include "lib/jxl/base/status.h"
-#include "lib/jxl/codec_in_out.h"
 
 namespace jxl {
+
+struct SizeConstraints;
+
 namespace extras {
 
+bool CanDecodeJPG();
+
+struct JPGDecompressParams {
+  int num_colors = 0;
+  bool two_pass_quant = false;
+  // 0 = none, 1 = ordered, 2 = Floyd-Steinberg
+  int dither_mode = 0;
+};
+
 // Decodes `bytes` into `ppf`. color_hints are ignored.
 // `elapsed_deinterleave`, if non-null, will be set to the time (in seconds)
 // that it took to deinterleave the raw JSAMPLEs to planar floats.
 Status DecodeImageJPG(Span<const uint8_t> bytes, const ColorHints& color_hints,
-                      const SizeConstraints& constraints, PackedPixelFile* ppf);
+                      PackedPixelFile* ppf,
+                      const SizeConstraints* constraints = nullptr,
+                      const JPGDecompressParams* dparams = nullptr);
 
 }  // namespace extras
 }  // namespace jxl