From 05243b86ff8bf9e5f7d0873097b5892bdbe3c4a5 Mon Sep 17 00:00:00 2001
From: Burhan Rajgara <burhan.rajgara@gmail.com>
Date: Thu, 2 Jan 2025 20:01:54 -0800
Subject: [PATCH] fixed texture copy more

---
 src/pica/hostshaders/gpu.frag | 2 +-
 src/services/gsp.c            | 9 ++++++---
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/pica/hostshaders/gpu.frag b/src/pica/hostshaders/gpu.frag
index cf6c132..14a7539 100644
--- a/src/pica/hostshaders/gpu.frag
+++ b/src/pica/hostshaders/gpu.frag
@@ -100,7 +100,7 @@ void calc_lighting(out vec4 primary, out vec4 secondary) {
         } else {
             l = normalize(quatrot(nq, view + light[i].vec.xyz));
         }
-        vec3 h = normalize((l + v) / 2);
+        vec3 h = normalize(l + v);
 
         // right now we just use phong shading
         // TODO: implement this properly
diff --git a/src/services/gsp.c b/src/services/gsp.c
index f64a2d5..ae01dea 100644
--- a/src/services/gsp.c
+++ b/src/services/gsp.c
@@ -298,17 +298,20 @@ void gsp_handle_command(E3DS* s) {
                   addrin, pitchin, gapin, addrout, pitchout, gapout, copysize,
                   flags);
 
-            // texture copy can be used to copy between framebuffers and this wont work right now
-
             u8* src = PTR(addrin);
             u8* dst = PTR(addrout);
 
             int cnt = 0;
+            int curline = 0;
             while (cnt < copysize) {
                 memcpy(dst, src, pitchin);
                 cnt += pitchin;
+                curline += pitchin;
                 src += pitchin + gapin;
-                dst += pitchout + gapout;
+                if (curline >= pitchout) {
+                    dst += pitchout + gapout;
+                    curline = 0;
+                }
             }
 
             gsp_handle_event(s, GSPEVENT_PPF);