all repos — mgba @ 91ab6b29f3e36bad6caa97ca80a3cd5c5906c490

mGBA Game Boy Advance Emulator

DS GX: Fix incorrect W values
Vicki Pfau vi@endrift.com
Mon, 17 Jul 2017 15:21:59 -0700
commit

91ab6b29f3e36bad6caa97ca80a3cd5c5906c490

parent

6509c4fffac8c593aa4515ab29b36b1ef6b26e3e

2 files changed, 2 insertions(+), 1 deletions(-)

jump to
M CHANGES → CHANGES 
@@ -9,6 +9,7 @@ - DS GX: Fixed viewport calculations (fixes mgba.io/i/709)
  - DS Video: Fix display capture blending value 16 (fixes mgba.io/i/757)
  - DS GX: Properly center cross product in polygon normal calculations
  - DS Video: Fix affine parameter advancing (fixes mgba.io/i/802)
+ - DS GX: Fix incorrect W values
 Misc:
  - DS GX: Clean up and unify texture mapping
  - DS Core: Add symbol loading
M src/ds/gx.c → src/ds/gx.c 
@@ -408,7 +408,7 @@ sum += a * b;
 	a = col[12];
 	b = MTX_ONE;
 	sum += a * b;
-	return sum >> 8LL;
+	return sum >> 12LL;
 }
 
 static int16_t _dotTexture(struct DSGX* gx, int16_t* input, int mode, int c) {