Implemented Int32_To_UInt8_Dither

.github/workflows/codesee-arch-diagram.yml

@@ -0,0 +1,23 @@
+# This workflow was added by CodeSee. Learn more at https://codesee.io/
+# This is v2.0 of this workflow file
+on:
+  push:
+    branches:
+      - master
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+name: CodeSee
+
+permissions: read-all
+
+jobs:
+  codesee:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    name: Analyze the repo with CodeSee
+    steps:
+      - uses: Codesee-io/codesee-action@v2
+        with:
+          codesee-token: ${{ secrets.CODESEE_ARCH_DIAG_API_TOKEN }}
+          codesee-url: https://app.codesee.io

src/common/pa_converters.c

@@ -1012,16 +1012,20 @@ static void Int32_To_UInt8_Dither(
     void *sourceBuffer, signed int sourceStride,
     unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
 {
-    /* PaInt32 *src = (PaInt32*)sourceBuffer;
-    unsigned char *dest =  (unsigned char*)destinationBuffer; */
+    PaInt32 *src = (PaInt32*)sourceBuffer;
+    unsigned char *dest =  (unsigned char*)destinationBuffer; 
     (void)ditherGenerator; /* unused parameter */
 
     while( count-- )
     {
-        /* IMPLEMENT ME */
+
+        PaInt32 dither = PaUtil_Generate16BitTriangularDither( ditherGenerator );
+        PaInt32 result = ((*src >> 1)  + (dither << 8));
+        result = (result >> 23) + 128;
+        *dest = (unsigned char)result;
 
-        /* src += sourceStride;
-        dest += destinationStride; */
+        src += sourceStride;
+        dest += destinationStride; 
     }
 }