diff --git a/tjbench.c b/tjbench.c
index 0ddcd7b..f1a2f6f 100644
--- a/tjbench.c
+++ b/tjbench.c
@@ -37,22 +37,22 @@
 #include "./turbojpeg.h"
 
 
-#define _throw(op, err) { \
+#define THROW(op, err) { \
   printf("ERROR in line %d while %s:\n%s\n", __LINE__, op, err); \
   retval = -1;  goto bailout; \
 }
-#define _throwunix(m)  _throw(m, strerror(errno))
+#define THROW_UNIX(m)  THROW(m, strerror(errno))
 
 char tjErrorStr[JMSG_LENGTH_MAX] = "\0", tjErrorMsg[JMSG_LENGTH_MAX] = "\0";
 int tjErrorLine = -1, tjErrorCode = -1;
 
-#define _throwtjg(m) { \
+#define THROW_TJG(m) { \
   printf("ERROR in line %d while %s:\n%s\n", __LINE__, m, \
          tjGetErrorStr2(NULL)); \
   retval = -1;  goto bailout; \
 }
 
-#define _throwtj(m) { \
+#define THROW_TJ(m) { \
   int _tjErrorCode = tjGetErrorCode(handle); \
   char *_tjErrorStr = tjGetErrorStr2(handle); \
   \
@@ -157,11 +157,11 @@
   }
 
   if ((handle = tjInitDecompress()) == NULL)
-    _throwtj("executing tjInitDecompress()");
+    THROW_TJ("executing tjInitDecompress()");
 
   if (dstBuf == NULL) {
     if ((dstBuf = (unsigned char *)malloc(pitch * scaledh)) == NULL)
-      _throwunix("allocating destination buffer");
+      THROW_UNIX("allocating destination buffer");
     dstBufAlloc = 1;
   }
   /* Set the destination buffer to gray so we know whether the decompressor
@@ -174,7 +174,7 @@
     int yuvSize = tjBufSizeYUV2(width, yuvPad, height, subsamp);
 
     if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
-      _throwunix("allocating YUV buffer");
+      THROW_UNIX("allocating YUV buffer");
     memset(yuvBuf, 127, yuvSize);
   }
 
@@ -197,16 +197,16 @@
 
           if (tjDecompressToYUV2(handle, jpegBuf[tile], jpegSize[tile], yuvBuf,
                                  width, yuvPad, height, flags) == -1)
-            _throwtj("executing tjDecompressToYUV2()");
+            THROW_TJ("executing tjDecompressToYUV2()");
           startDecode = getTime();
           if (tjDecodeYUV(handle, yuvBuf, yuvPad, subsamp, dstPtr2, width,
                           pitch, height, pf, flags) == -1)
-            _throwtj("executing tjDecodeYUV()");
+            THROW_TJ("executing tjDecodeYUV()");
           if (iter >= 0) elapsedDecode += getTime() - startDecode;
         } else if (tjDecompress2(handle, jpegBuf[tile], jpegSize[tile],
                                  dstPtr2, width, pitch, height, pf,
                                  flags) == -1)
-          _throwtj("executing tjDecompress2()");
+          THROW_TJ("executing tjDecompress2()");
       }
     }
     elapsed += getTime() - start;
@@ -220,7 +220,7 @@
   }
   if (doYUV) elapsed -= elapsedDecode;
 
-  if (tjDestroy(handle) == -1) _throwtj("executing tjDestroy()");
+  if (tjDestroy(handle) == -1) THROW_TJ("executing tjDestroy()");
   handle = NULL;
 
   if (quiet) {
@@ -260,7 +260,7 @@
              qualStr, sizeStr, ext);
 
   if (tjSaveImage(tempStr, dstBuf, scaledw, 0, scaledh, pf, flags) == -1)
-    _throwtjg("saving bitmap");
+    THROW_TJG("saving bitmap");
   ptr = strrchr(tempStr, '.');
   snprintf(ptr, 1024 - (ptr - tempStr), "-err.%s", ext);
   if (srcBuf && sf.num == 1 && sf.denom == 1) {
@@ -291,7 +291,7 @@
             abs(dstBuf[pitch * row + col] - srcBuf[pitch * row + col]);
     }
     if (tjSaveImage(tempStr, dstBuf, w, 0, h, pf, flags) == -1)
-      _throwtjg("saving bitmap");
+      THROW_TJG("saving bitmap");
   }
 
 bailout:
@@ -320,7 +320,7 @@
   const char *pfStr = pixFormatStr[pf];
 
   if ((tmpBuf = (unsigned char *)malloc(pitch * h)) == NULL)
-    _throwunix("allocating temporary image buffer");
+    THROW_UNIX("allocating temporary image buffer");
 
   if (!quiet)
     printf(">>>>>  %s (%s) <--> JPEG %s Q%d  <<<<<\n", pfStr,
@@ -336,18 +336,18 @@
 
     if ((jpegBuf = (unsigned char **)malloc(sizeof(unsigned char *) *
                                             ntilesw * ntilesh)) == NULL)
-      _throwunix("allocating JPEG tile array");
+      THROW_UNIX("allocating JPEG tile array");
     memset(jpegBuf, 0, sizeof(unsigned char *) * ntilesw * ntilesh);
     if ((jpegSize = (unsigned long *)malloc(sizeof(unsigned long) *
                                             ntilesw * ntilesh)) == NULL)
-      _throwunix("allocating JPEG size array");
+      THROW_UNIX("allocating JPEG size array");
     memset(jpegSize, 0, sizeof(unsigned long) * ntilesw * ntilesh);
 
     if ((flags & TJFLAG_NOREALLOC) != 0)
       for (i = 0; i < ntilesw * ntilesh; i++) {
         if ((jpegBuf[i] = (unsigned char *)
                           tjAlloc(tjBufSize(tilew, tileh, subsamp))) == NULL)
-          _throwunix("allocating JPEG tiles");
+          THROW_UNIX("allocating JPEG tiles");
       }
 
     /* Compression test */
@@ -358,12 +358,12 @@
     for (i = 0; i < h; i++)
       memcpy(&tmpBuf[pitch * i], &srcBuf[w * ps * i], w * ps);
     if ((handle = tjInitCompress()) == NULL)
-      _throwtj("executing tjInitCompress()");
+      THROW_TJ("executing tjInitCompress()");
 
     if (doYUV) {
       yuvSize = tjBufSizeYUV2(tilew, yuvPad, tileh, subsamp);
       if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
-        _throwunix("allocating YUV buffer");
+        THROW_UNIX("allocating YUV buffer");
       memset(yuvBuf, 127, yuvSize);
     }
 
@@ -387,17 +387,17 @@
 
             if (tjEncodeYUV3(handle, srcPtr2, width, pitch, height, pf, yuvBuf,
                              yuvPad, subsamp, flags) == -1)
-              _throwtj("executing tjEncodeYUV3()");
+              THROW_TJ("executing tjEncodeYUV3()");
             if (iter >= 0) elapsedEncode += getTime() - startEncode;
             if (tjCompressFromYUV(handle, yuvBuf, width, yuvPad, height,
                                   subsamp, &jpegBuf[tile], &jpegSize[tile],
                                   jpegQual, flags) == -1)
-              _throwtj("executing tjCompressFromYUV()");
+              THROW_TJ("executing tjCompressFromYUV()");
           } else {
             if (tjCompress2(handle, srcPtr2, width, pitch, height, pf,
                             &jpegBuf[tile], &jpegSize[tile], subsamp, jpegQual,
                             flags) == -1)
-              _throwtj("executing tjCompress2()");
+              THROW_TJ("executing tjCompress2()");
           }
           totalJpegSize += jpegSize[tile];
         }
@@ -413,7 +413,7 @@
     }
     if (doYUV) elapsed -= elapsedEncode;
 
-    if (tjDestroy(handle) == -1) _throwtj("executing tjDestroy()");
+    if (tjDestroy(handle) == -1) THROW_TJ("executing tjDestroy()");
     handle = NULL;
 
     if (quiet == 1) printf("%-5d  %-5d   ", tilew, tileh);
@@ -460,9 +460,9 @@
       snprintf(tempStr, 1024, "%s_%s_Q%d.jpg", fileName, subName[subsamp],
                jpegQual);
       if ((file = fopen(tempStr, "wb")) == NULL)
-        _throwunix("opening reference image");
+        THROW_UNIX("opening reference image");
       if (fwrite(jpegBuf[0], jpegSize[0], 1, file) != 1)
-        _throwunix("writing reference image");
+        THROW_UNIX("writing reference image");
       fclose(file);  file = NULL;
       if (!quiet) printf("Reference image written to %s\n", tempStr);
     }
@@ -521,28 +521,28 @@
   int tw, th, ttilew, ttileh, tntilesw, tntilesh, tsubsamp;
 
   if ((file = fopen(fileName, "rb")) == NULL)
-    _throwunix("opening file");
+    THROW_UNIX("opening file");
   if (fseek(file, 0, SEEK_END) < 0 ||
       (srcSize = ftell(file)) == (unsigned long)-1)
-    _throwunix("determining file size");
+    THROW_UNIX("determining file size");
   if ((srcBuf = (unsigned char *)malloc(srcSize)) == NULL)
-    _throwunix("allocating memory");
+    THROW_UNIX("allocating memory");
   if (fseek(file, 0, SEEK_SET) < 0)
-    _throwunix("setting file position");
+    THROW_UNIX("setting file position");
   if (fread(srcBuf, srcSize, 1, file) < 1)
-    _throwunix("reading JPEG data");
+    THROW_UNIX("reading JPEG data");
   fclose(file);  file = NULL;
 
   temp = strrchr(fileName, '.');
   if (temp != NULL) *temp = '\0';
 
   if ((handle = tjInitTransform()) == NULL)
-    _throwtj("executing tjInitTransform()");
+    THROW_TJ("executing tjInitTransform()");
   if (tjDecompressHeader3(handle, srcBuf, srcSize, &w, &h, &subsamp,
                           &cs) == -1)
-    _throwtj("executing tjDecompressHeader3()");
+    THROW_TJ("executing tjDecompressHeader3()");
   if (w < 1 || h < 1)
-    _throw("reading JPEG header", "Invalid image dimensions");
+    THROW("reading JPEG header", "Invalid image dimensions");
   if (cs == TJCS_YCCK || cs == TJCS_CMYK) {
     pf = TJPF_CMYK;  ps = tjPixelSize[pf];
   }
@@ -570,18 +570,18 @@
 
     if ((jpegBuf = (unsigned char **)malloc(sizeof(unsigned char *) *
                                             ntilesw * ntilesh)) == NULL)
-      _throwunix("allocating JPEG tile array");
+      THROW_UNIX("allocating JPEG tile array");
     memset(jpegBuf, 0, sizeof(unsigned char *) * ntilesw * ntilesh);
     if ((jpegSize = (unsigned long *)malloc(sizeof(unsigned long) *
                                             ntilesw * ntilesh)) == NULL)
-      _throwunix("allocating JPEG size array");
+      THROW_UNIX("allocating JPEG size array");
     memset(jpegSize, 0, sizeof(unsigned long) * ntilesw * ntilesh);
 
     if ((flags & TJFLAG_NOREALLOC) != 0 || !doTile)
       for (i = 0; i < ntilesw * ntilesh; i++) {
         if ((jpegBuf[i] = (unsigned char *)
                           tjAlloc(tjBufSize(tilew, tileh, subsamp))) == NULL)
-          _throwunix("allocating JPEG tiles");
+          THROW_UNIX("allocating JPEG tiles");
       }
 
     tw = w;  th = h;  ttilew = tilew;  ttileh = tileh;
@@ -601,7 +601,7 @@
     if (doTile || xformOp != TJXOP_NONE || xformOpt != 0 || customFilter) {
       if ((t = (tjtransform *)malloc(sizeof(tjtransform) * ntilesw *
                                      ntilesh)) == NULL)
-        _throwunix("allocating image transform array");
+        THROW_UNIX("allocating image transform array");
 
       if (xformOp == TJXOP_TRANSPOSE || xformOp == TJXOP_TRANSVERSE ||
           xformOp == TJXOP_ROT90 || xformOp == TJXOP_ROT270) {
@@ -647,7 +647,7 @@
         start = getTime();
         if (tjTransform(handle, srcBuf, srcSize, tntilesw * tntilesh, jpegBuf,
                         jpegSize, t, flags) == -1)
-          _throwtj("executing tjTransform()");
+          THROW_TJ("executing tjTransform()");
         elapsed += getTime() - start;
         if (iter >= 0) {
           iter++;
@@ -803,7 +803,7 @@
   int minArg = 2, retval = 0, subsamp = -1;
 
   if ((scalingFactors = tjGetScalingFactors(&nsf)) == NULL || nsf == 0)
-    _throw("executing tjGetScalingFactors()", tjGetErrorStr());
+    THROW("executing tjGetScalingFactors()", tjGetErrorStr());
 
   if (argc < minArg) usage(argv[0]);
 
@@ -961,7 +961,7 @@
 
   if (!decompOnly) {
     if ((srcBuf = tjLoadImage(argv[1], &w, 1, &h, &pf, flags)) == NULL)
-      _throwtjg("loading bitmap");
+      THROW_TJG("loading bitmap");
     temp = strrchr(argv[1], '.');
     if (temp != NULL) *temp = '\0';
   }
diff --git a/tjexample.c b/tjexample.c
index 61200e6..0db2269 100644
--- a/tjexample.c
+++ b/tjexample.c
@@ -44,14 +44,14 @@
 #define strncasecmp  strnicmp
 #endif
 
-#define _throw(action, message) { \
+#define THROW(action, message) { \
   printf("ERROR in line %d while %s:\n%s\n", __LINE__, action, message); \
   retval = -1;  goto bailout; \
 }
 
-#define _throwtj(action)  _throw(action, tjGetErrorStr2(tjInstance))
+#define THROW_TJ(action)  THROW(action, tjGetErrorStr2(tjInstance))
 
-#define _throwunix(action)  _throw(action, strerror(errno))
+#define THROW_UNIX(action)  THROW(action, strerror(errno))
 
 #define DEFAULT_SUBSAMP  TJSAMP_444
 #define DEFAULT_QUALITY  95
@@ -172,7 +172,7 @@
   tjhandle tjInstance = NULL;
 
   if ((scalingFactors = tjGetScalingFactors(&numScalingFactors)) == NULL)
-    _throwtj("getting scaling factors");
+    THROW_TJ("getting scaling factors");
   memset(&xform, 0, sizeof(tjtransform));
 
   if (argc < 3)
@@ -266,17 +266,17 @@
 
     /* Read the JPEG file into memory. */
     if ((jpegFile = fopen(argv[1], "rb")) == NULL)
-      _throwunix("opening input file");
+      THROW_UNIX("opening input file");
     if (fseek(jpegFile, 0, SEEK_END) < 0 || ((size = ftell(jpegFile)) < 0) ||
         fseek(jpegFile, 0, SEEK_SET) < 0)
-      _throwunix("determining input file size");
+      THROW_UNIX("determining input file size");
     if (size == 0)
-      _throw("determining input file size", "Input file contains no data");
+      THROW("determining input file size", "Input file contains no data");
     jpegSize = (unsigned long)size;
     if ((jpegBuf = (unsigned char *)tjAlloc(jpegSize)) == NULL)
-      _throwunix("allocating JPEG buffer");
+      THROW_UNIX("allocating JPEG buffer");
     if (fread(jpegBuf, jpegSize, 1, jpegFile) < 1)
-      _throwunix("reading input file");
+      THROW_UNIX("reading input file");
     fclose(jpegFile);  jpegFile = NULL;
 
     if (doTransform) {
@@ -285,22 +285,22 @@
       unsigned long dstSize = 0;
 
       if ((tjInstance = tjInitTransform()) == NULL)
-        _throwtj("initializing transformer");
+        THROW_TJ("initializing transformer");
       xform.options |= TJXOPT_TRIM;
       if (tjTransform(tjInstance, jpegBuf, jpegSize, 1, &dstBuf, &dstSize,
                       &xform, flags) < 0)
-        _throwtj("transforming input image");
+        THROW_TJ("transforming input image");
       tjFree(jpegBuf);
       jpegBuf = dstBuf;
       jpegSize = dstSize;
     } else {
       if ((tjInstance = tjInitDecompress()) == NULL)
-        _throwtj("initializing decompressor");
+        THROW_TJ("initializing decompressor");
     }
 
     if (tjDecompressHeader3(tjInstance, jpegBuf, jpegSize, &width, &height,
                             &inSubsamp, &inColorspace) < 0)
-      _throwtj("reading JPEG header");
+      THROW_TJ("reading JPEG header");
 
     printf("%s Image:  %d x %d pixels, %s subsampling, %s colorspace\n",
            (doTransform ? "Transformed" : "Input"), width, height,
@@ -312,9 +312,9 @@
       /* Input image has been transformed, and no re-compression options
          have been selected.  Write the transformed image to disk and exit. */
       if ((jpegFile = fopen(argv[2], "wb")) == NULL)
-        _throwunix("opening output file");
+        THROW_UNIX("opening output file");
       if (fwrite(jpegBuf, jpegSize, 1, jpegFile) < 1)
-        _throwunix("writing output file");
+        THROW_UNIX("writing output file");
       fclose(jpegFile);  jpegFile = NULL;
       goto bailout;
     }
@@ -330,18 +330,18 @@
     pixelFormat = TJPF_BGRX;
     if ((imgBuf = (unsigned char *)tjAlloc(width * height *
                                            tjPixelSize[pixelFormat])) == NULL)
-      _throwunix("allocating uncompressed image buffer");
+      THROW_UNIX("allocating uncompressed image buffer");
 
     if (tjDecompress2(tjInstance, jpegBuf, jpegSize, imgBuf, width, 0, height,
                       pixelFormat, flags) < 0)
-      _throwtj("decompressing JPEG image");
+      THROW_TJ("decompressing JPEG image");
     tjFree(jpegBuf);  jpegBuf = NULL;
     tjDestroy(tjInstance);  tjInstance = NULL;
   } else {
     /* Input image is not a JPEG image.  Load it into memory. */
     if ((imgBuf = tjLoadImage(argv[1], &width, 1, &height, &pixelFormat,
                               0)) == NULL)
-      _throwtj("loading input image");
+      THROW_TJ("loading input image");
     if (outSubsamp < 0) {
       if (pixelFormat == TJPF_GRAY)
         outSubsamp = TJSAMP_GRAY;
@@ -364,17 +364,17 @@
            outQual);
 
     if ((tjInstance = tjInitCompress()) == NULL)
-      _throwtj("initializing compressor");
+      THROW_TJ("initializing compressor");
     if (tjCompress2(tjInstance, imgBuf, width, 0, height, pixelFormat,
                     &jpegBuf, &jpegSize, outSubsamp, outQual, flags) < 0)
-      _throwtj("compressing image");
+      THROW_TJ("compressing image");
     tjDestroy(tjInstance);  tjInstance = NULL;
 
     /* Write the JPEG image to disk. */
     if ((jpegFile = fopen(argv[2], "wb")) == NULL)
-      _throwunix("opening output file");
+      THROW_UNIX("opening output file");
     if (fwrite(jpegBuf, jpegSize, 1, jpegFile) < 1)
-      _throwunix("writing output file");
+      THROW_UNIX("writing output file");
     tjDestroy(tjInstance);  tjInstance = NULL;
     fclose(jpegFile);  jpegFile = NULL;
     tjFree(jpegBuf);  jpegBuf = NULL;
@@ -383,7 +383,7 @@
        directly to disk. */
     printf("\n");
     if (tjSaveImage(argv[2], imgBuf, width, 0, height, pixelFormat, 0) < 0)
-      _throwtj("saving output image");
+      THROW_TJ("saving output image");
   }
 
 bailout:
diff --git a/tjunittest.c b/tjunittest.c
index ae72e83..fe6e4bb 100644
--- a/tjunittest.c
+++ b/tjunittest.c
@@ -59,16 +59,16 @@
 }
 
 
-#define _throwtj() { \
+#define THROW_TJ() { \
   printf("TurboJPEG ERROR:\n%s\n", tjGetErrorStr()); \
-  bailout() \
+  BAILOUT() \
 }
-#define _tj(f) { if ((f) == -1) _throwtj(); }
-#define _throw(m) { printf("ERROR: %s\n", m);  bailout() }
-#define _throwmd5(filename, md5sum, ref) { \
+#define TRY_TJ(f) { if ((f) == -1) THROW_TJ(); }
+#define THROW(m) { printf("ERROR: %s\n", m);  BAILOUT() }
+#define THROW_MD5(filename, md5sum, ref) { \
   printf("\n%s has an MD5 sum of %s.\n   Should be %s.\n", filename, md5sum, \
          ref); \
-  bailout() \
+  BAILOUT() \
 }
 
 const char *subNameLong[TJ_NUMSAMP] = {
@@ -93,7 +93,7 @@
 int doYUV = 0, alloc = 0, pad = 4;
 
 int exitStatus = 0;
-#define bailout() { exitStatus = -1;  goto bailout; }
+#define BAILOUT() { exitStatus = -1;  goto bailout; }
 
 
 void initBuf(unsigned char *buf, int w, int h, int pf, int flags)
@@ -151,7 +151,7 @@
 }
 
 
-#define checkval(v, cv) { \
+#define CHECKVAL(v, cv) { \
   if (v < cv - 1 || v > cv + 1) { \
     printf("\nComp. %s at %d,%d should be %d, not %d\n", #v, row, col, cv, \
            v); \
@@ -159,14 +159,14 @@
   } \
 }
 
-#define checkval0(v) { \
+#define CHECKVAL0(v) { \
   if (v > 1) { \
     printf("\nComp. %s at %d,%d should be 0, not %d\n", #v, row, col, v); \
     retval = 0;  exitStatus = -1;  goto bailout; \
   } \
 }
 
-#define checkval255(v) { \
+#define CHECKVAL255(v) { \
   if (v < 254) { \
     printf("\nComp. %s at %d,%d should be 255, not %d\n", #v, row, col, v); \
     retval = 0;  exitStatus = -1;  goto bailout; \
@@ -200,13 +200,13 @@
         y = buf[index * ps + 2];
         k = buf[index * ps + 3];
         if (((row / blocksize) + (col / blocksize)) % 2 == 0) {
-          checkval255(c);  checkval255(m);  checkval255(y);
-          if (row < halfway) checkval255(k)
-          else checkval0(k)
+          CHECKVAL255(c);  CHECKVAL255(m);  CHECKVAL255(y);
+          if (row < halfway) CHECKVAL255(k)
+          else CHECKVAL0(k)
         } else {
-          checkval255(c);  checkval0(y);  checkval255(k);
-          if (row < halfway) checkval0(m)
-          else checkval255(m)
+          CHECKVAL255(c);  CHECKVAL0(y);  CHECKVAL255(k);
+          if (row < halfway) CHECKVAL0(m)
+          else CHECKVAL255(m)
         }
       }
     }
@@ -225,26 +225,26 @@
       a = aoffset >= 0 ? buf[index * ps + aoffset] : 0xFF;
       if (((row / blocksize) + (col / blocksize)) % 2 == 0) {
         if (row < halfway) {
-          checkval255(r);  checkval255(g);  checkval255(b);
+          CHECKVAL255(r);  CHECKVAL255(g);  CHECKVAL255(b);
         } else {
-          checkval0(r);  checkval0(g);  checkval0(b);
+          CHECKVAL0(r);  CHECKVAL0(g);  CHECKVAL0(b);
         }
       } else {
         if (subsamp == TJSAMP_GRAY) {
           if (row < halfway) {
-            checkval(r, 76);  checkval(g, 76);  checkval(b, 76);
+            CHECKVAL(r, 76);  CHECKVAL(g, 76);  CHECKVAL(b, 76);
           } else {
-            checkval(r, 226);  checkval(g, 226);  checkval(b, 226);
+            CHECKVAL(r, 226);  CHECKVAL(g, 226);  CHECKVAL(b, 226);
           }
         } else {
           if (row < halfway) {
-            checkval255(r);  checkval0(g);  checkval0(b);
+            CHECKVAL255(r);  CHECKVAL0(g);  CHECKVAL0(b);
           } else {
-            checkval255(r);  checkval255(g);  checkval0(b);
+            CHECKVAL255(r);  CHECKVAL255(g);  CHECKVAL0(b);
           }
         }
       }
-      checkval255(a);
+      CHECKVAL255(a);
     }
   }
 
@@ -287,11 +287,11 @@
       unsigned char y = buf[ypitch * row + col];
 
       if (((row / blocksize) + (col / blocksize)) % 2 == 0) {
-        if (row < halfway) checkval255(y)
-        else checkval0(y);
+        if (row < halfway) CHECKVAL255(y)
+        else CHECKVAL0(y);
       } else {
-        if (row < halfway) checkval(y, 76)
-        else checkval(y, 226);
+        if (row < halfway) CHECKVAL(y, 76)
+        else CHECKVAL(y, 226);
       }
     }
   }
@@ -304,12 +304,12 @@
           v = buf[ypitch * ph + uvpitch * ch + (uvpitch * row + col)];
 
         if (((row * vsf / blocksize) + (col * hsf / blocksize)) % 2 == 0) {
-          checkval(u, 128);  checkval(v, 128);
+          CHECKVAL(u, 128);  CHECKVAL(v, 128);
         } else {
           if (row < halfway) {
-            checkval(u, 85);  checkval255(v);
+            CHECKVAL(u, 85);  CHECKVAL255(v);
           } else {
-            checkval0(u);  checkval(v, 149);
+            CHECKVAL0(u);  CHECKVAL(v, 149);
           }
         }
       }
@@ -348,7 +348,7 @@
 
   if (!file || fwrite(jpegBuf, jpegSize, 1, file) != 1) {
     printf("ERROR: Could not write to %s.\n%s\n", filename, strerror(errno));
-    bailout()
+    BAILOUT()
   }
 
 bailout:
@@ -368,7 +368,7 @@
   const char *buStr = (flags & TJFLAG_BOTTOMUP) ? "BU" : "TD";
 
   if ((srcBuf = (unsigned char *)malloc(w * h * tjPixelSize[pf])) == NULL)
-    _throw("Memory allocation failure");
+    THROW("Memory allocation failure");
   initBuf(srcBuf, w, h, pf, flags);
 
   if (*dstBuf && *dstSize > 0) memset(*dstBuf, 0, *dstSize);
@@ -379,28 +379,28 @@
     tjscalingfactor sf = { 1, 1 };
     tjhandle handle2 = tjInitCompress();
 
-    if (!handle2) _throwtj();
+    if (!handle2) THROW_TJ();
 
     if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
-      _throw("Memory allocation failure");
+      THROW("Memory allocation failure");
     memset(yuvBuf, 0, yuvSize);
 
     printf("%s %s -> YUV %s ... ", pfStr, buStrLong, subNameLong[subsamp]);
-    _tj(tjEncodeYUV3(handle2, srcBuf, w, 0, h, pf, yuvBuf, pad, subsamp,
-                     flags));
+    TRY_TJ(tjEncodeYUV3(handle2, srcBuf, w, 0, h, pf, yuvBuf, pad, subsamp,
+                        flags));
     tjDestroy(handle2);
     if (checkBufYUV(yuvBuf, w, h, subsamp, sf)) printf("Passed.\n");
     else printf("FAILED!\n");
 
     printf("YUV %s %s -> JPEG Q%d ... ", subNameLong[subsamp], buStrLong,
            jpegQual);
-    _tj(tjCompressFromYUV(handle, yuvBuf, w, pad, h, subsamp, dstBuf, dstSize,
-                          jpegQual, flags));
+    TRY_TJ(tjCompressFromYUV(handle, yuvBuf, w, pad, h, subsamp, dstBuf,
+                             dstSize, jpegQual, flags));
   } else {
     printf("%s %s -> %s Q%d ... ", pfStr, buStrLong, subNameLong[subsamp],
            jpegQual);
-    _tj(tjCompress2(handle, srcBuf, w, 0, h, pf, dstBuf, dstSize, subsamp,
-                    jpegQual, flags));
+    TRY_TJ(tjCompress2(handle, srcBuf, w, 0, h, pf, dstBuf, dstSize, subsamp,
+                       jpegQual, flags));
   }
 
   snprintf(tempStr, 1024, "%s_enc_%s_%s_%s_Q%d.jpg", basename, pfStr, buStr,
@@ -424,14 +424,14 @@
   int scaledHeight = TJSCALED(h, sf);
   unsigned long dstSize = 0;
 
-  _tj(tjDecompressHeader2(handle, jpegBuf, jpegSize, &_hdrw, &_hdrh,
-                          &_hdrsubsamp));
+  TRY_TJ(tjDecompressHeader2(handle, jpegBuf, jpegSize, &_hdrw, &_hdrh,
+                             &_hdrsubsamp));
   if (_hdrw != w || _hdrh != h || _hdrsubsamp != subsamp)
-    _throw("Incorrect JPEG header");
+    THROW("Incorrect JPEG header");
 
   dstSize = scaledWidth * scaledHeight * tjPixelSize[pf];
   if ((dstBuf = (unsigned char *)malloc(dstSize)) == NULL)
-    _throw("Memory allocation failure");
+    THROW("Memory allocation failure");
   memset(dstBuf, 0, dstSize);
 
   if (doYUV) {
@@ -439,26 +439,26 @@
                                           subsamp);
     tjhandle handle2 = tjInitDecompress();
 
-    if (!handle2) _throwtj();
+    if (!handle2) THROW_TJ();
 
     if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
-      _throw("Memory allocation failure");
+      THROW("Memory allocation failure");
     memset(yuvBuf, 0, yuvSize);
 
     printf("JPEG -> YUV %s ", subNameLong[subsamp]);
     if (sf.num != 1 || sf.denom != 1)
       printf("%d/%d ... ", sf.num, sf.denom);
     else printf("... ");
-    _tj(tjDecompressToYUV2(handle, jpegBuf, jpegSize, yuvBuf, scaledWidth, pad,
-                           scaledHeight, flags));
+    TRY_TJ(tjDecompressToYUV2(handle, jpegBuf, jpegSize, yuvBuf, scaledWidth,
+                              pad, scaledHeight, flags));
     if (checkBufYUV(yuvBuf, scaledWidth, scaledHeight, subsamp, sf))
       printf("Passed.\n");
     else printf("FAILED!\n");
 
     printf("YUV %s -> %s %s ... ", subNameLong[subsamp], pixFormatStr[pf],
            (flags & TJFLAG_BOTTOMUP) ? "Bottom-Up" : "Top-Down ");
-    _tj(tjDecodeYUV(handle2, yuvBuf, pad, subsamp, dstBuf, scaledWidth, 0,
-                    scaledHeight, pf, flags));
+    TRY_TJ(tjDecodeYUV(handle2, yuvBuf, pad, subsamp, dstBuf, scaledWidth, 0,
+                       scaledHeight, pf, flags));
     tjDestroy(handle2);
   } else {
     printf("JPEG -> %s %s ", pixFormatStr[pf],
@@ -466,8 +466,8 @@
     if (sf.num != 1 || sf.denom != 1)
       printf("%d/%d ... ", sf.num, sf.denom);
     else printf("... ");
-    _tj(tjDecompress2(handle, jpegBuf, jpegSize, dstBuf, scaledWidth, 0,
-                      scaledHeight, pf, flags));
+    TRY_TJ(tjDecompress2(handle, jpegBuf, jpegSize, dstBuf, scaledWidth, 0,
+                         scaledHeight, pf, flags));
   }
 
   if (checkBuf(dstBuf, scaledWidth, scaledHeight, pf, subsamp, sf, flags))
@@ -488,7 +488,7 @@
   int i, n = 0;
   tjscalingfactor *sf = tjGetScalingFactors(&n);
 
-  if (!sf || !n) _throwtj();
+  if (!sf || !n) THROW_TJ();
 
   for (i = 0; i < n; i++) {
     if (subsamp == TJSAMP_444 || subsamp == TJSAMP_GRAY ||
@@ -517,11 +517,11 @@
     size = tjBufSize(w, h, subsamp);
   if (size != 0)
     if ((dstBuf = (unsigned char *)tjAlloc(size)) == NULL)
-      _throw("Memory allocation failure.");
+      THROW("Memory allocation failure.");
 
   if ((chandle = tjInitCompress()) == NULL ||
       (dhandle = tjInitDecompress()) == NULL)
-    _throwtj();
+    THROW_TJ();
 
   for (pfi = 0; pfi < nformats; pfi++) {
     for (i = 0; i < 2; i++) {
@@ -559,7 +559,7 @@
   tjhandle handle = NULL;
   unsigned long dstSize = 0;
 
-  if ((handle = tjInitCompress()) == NULL) _throwtj();
+  if ((handle = tjInitCompress()) == NULL) THROW_TJ();
 
   printf("Buffer size regression test\n");
   for (subsamp = 0; subsamp < TJ_NUMSAMP; subsamp++) {
@@ -569,12 +569,12 @@
       for (h = 1; h < maxh; h++) {
         if (h % 100 == 0) printf("%.4d x %.4d\b\b\b\b\b\b\b\b\b\b\b", w, h);
         if ((srcBuf = (unsigned char *)malloc(w * h * 4)) == NULL)
-          _throw("Memory allocation failure");
+          THROW("Memory allocation failure");
         if (!alloc || doYUV) {
           if (doYUV) dstSize = tjBufSizeYUV2(w, pad, h, subsamp);
           else dstSize = tjBufSize(w, h, subsamp);
           if ((dstBuf = (unsigned char *)tjAlloc(dstSize)) == NULL)
-            _throw("Memory allocation failure");
+            THROW("Memory allocation failure");
         }
 
         for (i = 0; i < w * h * 4; i++) {
@@ -583,12 +583,12 @@
         }
 
         if (doYUV) {
-          _tj(tjEncodeYUV3(handle, srcBuf, w, 0, h, TJPF_BGRX, dstBuf, pad,
-                           subsamp, 0));
+          TRY_TJ(tjEncodeYUV3(handle, srcBuf, w, 0, h, TJPF_BGRX, dstBuf, pad,
+                              subsamp, 0));
         } else {
-          _tj(tjCompress2(handle, srcBuf, w, 0, h, TJPF_BGRX, &dstBuf,
-                          &dstSize, subsamp, 100,
-                          alloc ? 0 : TJFLAG_NOREALLOC));
+          TRY_TJ(tjCompress2(handle, srcBuf, w, 0, h, TJPF_BGRX, &dstBuf,
+                             &dstSize, subsamp, 100,
+                             alloc ? 0 : TJFLAG_NOREALLOC));
         }
         free(srcBuf);  srcBuf = NULL;
         if (!alloc || doYUV) {
@@ -596,12 +596,12 @@
         }
 
         if ((srcBuf = (unsigned char *)malloc(h * w * 4)) == NULL)
-          _throw("Memory allocation failure");
+          THROW("Memory allocation failure");
         if (!alloc || doYUV) {
           if (doYUV) dstSize = tjBufSizeYUV2(h, pad, w, subsamp);
           else dstSize = tjBufSize(h, w, subsamp);
           if ((dstBuf = (unsigned char *)tjAlloc(dstSize)) == NULL)
-            _throw("Memory allocation failure");
+            THROW("Memory allocation failure");
         }
 
         for (i = 0; i < h * w * 4; i++) {
@@ -610,12 +610,12 @@
         }
 
         if (doYUV) {
-          _tj(tjEncodeYUV3(handle, srcBuf, h, 0, w, TJPF_BGRX, dstBuf, pad,
-                           subsamp, 0));
+          TRY_TJ(tjEncodeYUV3(handle, srcBuf, h, 0, w, TJPF_BGRX, dstBuf, pad,
+                              subsamp, 0));
         } else {
-          _tj(tjCompress2(handle, srcBuf, h, 0, w, TJPF_BGRX, &dstBuf,
-                          &dstSize, subsamp, 100,
-                          alloc ? 0 : TJFLAG_NOREALLOC));
+          TRY_TJ(tjCompress2(handle, srcBuf, h, 0, w, TJPF_BGRX, &dstBuf,
+                             &dstSize, subsamp, 100,
+                             alloc ? 0 : TJFLAG_NOREALLOC));
         }
         free(srcBuf);  srcBuf = NULL;
         if (!alloc || doYUV) {
@@ -736,20 +736,20 @@
   }
 
   if ((buf = (unsigned char *)tjAlloc(pitch * height)) == NULL)
-    _throw("Could not allocate memory");
+    THROW("Could not allocate memory");
   initBitmap(buf, width, pitch, height, pf, flags);
 
   snprintf(filename, 80, "test_bmp_%s_%d_%s.%s", pixFormatStr[pf], align,
            (flags & TJFLAG_BOTTOMUP) ? "bu" : "td", ext);
-  _tj(tjSaveImage(filename, buf, width, pitch, height, pf, flags));
+  TRY_TJ(tjSaveImage(filename, buf, width, pitch, height, pf, flags));
   md5sum = MD5File(filename, md5buf);
   if (strcasecmp(md5sum, md5ref))
-    _throwmd5(filename, md5sum, md5ref);
+    THROW_MD5(filename, md5sum, md5ref);
 
   tjFree(buf);  buf = NULL;
   if ((buf = tjLoadImage(filename, &loadWidth, align, &loadHeight, &pf,
                          flags)) == NULL)
-    _throwtj();
+    THROW_TJ();
   if (width != loadWidth || height != loadHeight) {
     printf("\n   Image dimensions of %s are bogus\n", filename);
     retval = -1;  goto bailout;
@@ -763,7 +763,7 @@
     pf = TJPF_XBGR;
     if ((buf = tjLoadImage(filename, &loadWidth, align, &loadHeight, &pf,
                            flags)) == NULL)
-      _throwtj();
+      THROW_TJ();
     pitch = PAD(width * tjPixelSize[pf], align);
     if (!cmpBitmap(buf, width, pitch, height, pf, flags, 1)) {
       printf("\n   Converting %s to RGB failed\n", filename);
@@ -774,7 +774,7 @@
     pf = TJPF_CMYK;
     if ((buf = tjLoadImage(filename, &loadWidth, align, &loadHeight, &pf,
                            flags)) == NULL)
-      _throwtj();
+      THROW_TJ();
     pitch = PAD(width * tjPixelSize[pf], align);
     if (!cmpBitmap(buf, width, pitch, height, pf, flags, 1)) {
       printf("\n   Converting %s to CMYK failed\n", filename);
@@ -788,7 +788,7 @@
   pixelFormat = TJPF_UNKNOWN;
   if ((buf = tjLoadImage(filename, &loadWidth, align, &loadHeight,
                          &pixelFormat, flags)) == NULL)
-    _throwtj();
+    THROW_TJ();
   if ((pf == TJPF_GRAY && pixelFormat != TJPF_GRAY) ||
       (pf != TJPF_GRAY && !strcasecmp(ext, "bmp") &&
        pixelFormat != TJPF_BGR) ||
diff --git a/turbojpeg-jni.c b/turbojpeg-jni.c
index d0a0935..13f18f7 100644
--- a/turbojpeg-jni.c
+++ b/turbojpeg-jni.c
@@ -39,55 +39,55 @@
 
 #define PAD(v, p)  ((v + (p) - 1) & (~((p) - 1)))
 
-#define bailif0(f) { \
+#define BAILIF0(f) { \
   if (!(f) || (*env)->ExceptionCheck(env)) { \
     goto bailout; \
   } \
 }
 
-#define _throw(msg, exceptionClass) { \
+#define THROW(msg, exceptionClass) { \
   jclass _exccls = (*env)->FindClass(env, exceptionClass); \
   \
-  bailif0(_exccls); \
+  BAILIF0(_exccls); \
   (*env)->ThrowNew(env, _exccls, msg); \
   goto bailout; \
 }
 
-#define _throwtj() { \
+#define THROW_TJ() { \
   jclass _exccls; \
   jmethodID _excid; \
   jobject _excobj; \
   jstring _errstr; \
   \
-  bailif0(_errstr = (*env)->NewStringUTF(env, tjGetErrorStr2(handle))); \
-  bailif0(_exccls = (*env)->FindClass(env, \
+  BAILIF0(_errstr = (*env)->NewStringUTF(env, tjGetErrorStr2(handle))); \
+  BAILIF0(_exccls = (*env)->FindClass(env, \
     "org/libjpegturbo/turbojpeg/TJException")); \
-  bailif0(_excid = (*env)->GetMethodID(env, _exccls, "<init>", \
+  BAILIF0(_excid = (*env)->GetMethodID(env, _exccls, "<init>", \
                                        "(Ljava/lang/String;I)V")); \
-  bailif0(_excobj = (*env)->NewObject(env, _exccls, _excid, _errstr, \
+  BAILIF0(_excobj = (*env)->NewObject(env, _exccls, _excid, _errstr, \
                                       tjGetErrorCode(handle))); \
   (*env)->Throw(env, _excobj); \
   goto bailout; \
 }
 
-#define _throwarg(msg)  _throw(msg, "java/lang/IllegalArgumentException")
+#define THROW_ARG(msg)  THROW(msg, "java/lang/IllegalArgumentException")
 
-#define _throwmem() \
-  _throw("Memory allocation failure", "java/lang/OutOfMemoryError");
+#define THROW_MEM() \
+  THROW("Memory allocation failure", "java/lang/OutOfMemoryError");
 
-#define gethandle() \
+#define GET_HANDLE() \
   jclass _cls = (*env)->GetObjectClass(env, obj); \
   jfieldID _fid; \
   \
-  bailif0(_cls); \
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "handle", "J")); \
+  BAILIF0(_cls); \
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "handle", "J")); \
   handle = (tjhandle)(size_t)(*env)->GetLongField(env, obj, _fid);
 
 #ifdef _WIN32
 #define setenv(envvar, value, dummy)  _putenv_s(envvar, value)
 #endif
 
-#define prop2env(property, envvar) { \
+#define PROP2ENV(property, envvar) { \
   if ((jName = (*env)->NewStringUTF(env, property)) != NULL && \
       (jValue = (*env)->CallStaticObjectMethod(env, cls, mid, \
                                                jName)) != NULL) { \
@@ -105,14 +105,14 @@
   jstring jName, jValue;
   const char *value;
 
-  bailif0(cls = (*env)->FindClass(env, "java/lang/System"));
-  bailif0(mid = (*env)->GetStaticMethodID(env, cls, "getProperty",
+  BAILIF0(cls = (*env)->FindClass(env, "java/lang/System"));
+  BAILIF0(mid = (*env)->GetStaticMethodID(env, cls, "getProperty",
     "(Ljava/lang/String;)Ljava/lang/String;"));
 
-  prop2env("turbojpeg.optimize", "TJ_OPTIMIZE");
-  prop2env("turbojpeg.arithmetic", "TJ_ARITHMETIC");
-  prop2env("turbojpeg.restart", "TJ_RESTART");
-  prop2env("turbojpeg.progressive", "TJ_PROGRESSIVE");
+  PROP2ENV("turbojpeg.optimize", "TJ_OPTIMIZE");
+  PROP2ENV("turbojpeg.arithmetic", "TJ_ARITHMETIC");
+  PROP2ENV("turbojpeg.restart", "TJ_RESTART");
+  PROP2ENV("turbojpeg.progressive", "TJ_PROGRESSIVE");
   return 0;
 
 bailout:
@@ -125,7 +125,7 @@
 {
   jint retval = (jint)tjBufSize(width, height, jpegSubsamp);
 
-  if (retval == -1) _throwarg(tjGetErrorStr());
+  if (retval == -1) THROW_ARG(tjGetErrorStr());
 
 bailout:
   return retval;
@@ -137,7 +137,7 @@
 {
   jint retval = (jint)tjBufSizeYUV2(width, pad, height, subsamp);
 
-  if (retval == -1) _throwarg(tjGetErrorStr());
+  if (retval == -1) THROW_ARG(tjGetErrorStr());
 
 bailout:
   return retval;
@@ -160,7 +160,7 @@
   jint retval = (jint)tjPlaneSizeYUV(componentID, width, stride, height,
                                      subsamp);
 
-  if (retval == -1) _throwarg(tjGetErrorStr());
+  if (retval == -1) THROW_ARG(tjGetErrorStr());
 
 bailout:
   return retval;
@@ -172,7 +172,7 @@
 {
   jint retval = (jint)tjPlaneWidth(componentID, width, subsamp);
 
-  if (retval == -1) _throwarg(tjGetErrorStr());
+  if (retval == -1) THROW_ARG(tjGetErrorStr());
 
 bailout:
   return retval;
@@ -184,7 +184,7 @@
 {
   jint retval = (jint)tjPlaneHeight(componentID, height, subsamp);
 
-  if (retval == -1) _throwarg(tjGetErrorStr());
+  if (retval == -1) THROW_ARG(tjGetErrorStr());
 
 bailout:
   return retval;
@@ -199,10 +199,10 @@
   tjhandle handle;
 
   if ((handle = tjInitCompress()) == NULL)
-    _throw(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
+    THROW(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
 
-  bailif0(cls = (*env)->GetObjectClass(env, obj));
-  bailif0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
+  BAILIF0(cls = (*env)->GetObjectClass(env, obj));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
   (*env)->SetLongField(env, obj, fid, (size_t)handle);
 
 bailout:
@@ -219,31 +219,31 @@
   jsize arraySize = 0, actualPitch;
   unsigned char *srcBuf = NULL, *jpegBuf = NULL;
 
-  gethandle();
+  GET_HANDLE();
 
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
       height < 1 || pitch < 0)
-    _throwarg("Invalid argument in compress()");
+    THROW_ARG("Invalid argument in compress()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
   arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
   if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
-    _throwarg("Source buffer is not large enough");
+    THROW_ARG("Source buffer is not large enough");
   jpegSize = tjBufSize(width, height, jpegSubsamp);
   if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
   if (ProcessSystemProperties(env) < 0) goto bailout;
 
-  bailif0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjCompress2(handle, &srcBuf[y * actualPitch + x * tjPixelSize[pf]],
                   width, pitch, height, pf, &jpegBuf, &jpegSize, jpegSubsamp,
                   jpegQual, flags | TJFLAG_NOREALLOC) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
@@ -278,9 +278,9 @@
    jint jpegQual, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in compress()");
+    THROW_ARG("Invalid argument in compress()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when compressing from an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when compressing from an integer buffer.");
 
   return TJCompressor_compress(env, obj, src, sizeof(jint), x, y, width,
                                stride * sizeof(jint), height, pf, dst,
@@ -297,9 +297,9 @@
    jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in compress()");
+    THROW_ARG("Invalid argument in compress()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when compressing from an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when compressing from an integer buffer.");
 
   return TJCompressor_compress(env, obj, src, sizeof(jint), 0, 0, width,
                                stride * sizeof(jint), height, pf, dst,
@@ -323,54 +323,54 @@
   int *srcOffsets = NULL, *srcStrides = NULL;
   int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
 
-  gethandle();
+  GET_HANDLE();
 
   if (subsamp < 0 || subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
-    _throwarg("Invalid argument in compressFromYUV()");
+    THROW_ARG("Invalid argument in compressFromYUV()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   if ((*env)->GetArrayLength(env, srcobjs) < nc)
-    _throwarg("Planes array is too small for the subsampling type");
+    THROW_ARG("Planes array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jSrcOffsets) < nc)
-    _throwarg("Offsets array is too small for the subsampling type");
+    THROW_ARG("Offsets array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jSrcStrides) < nc)
-    _throwarg("Strides array is too small for the subsampling type");
+    THROW_ARG("Strides array is too small for the subsampling type");
 
   jpegSize = tjBufSize(width, height, subsamp);
   if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
   if (ProcessSystemProperties(env) < 0) goto bailout;
 
-  bailif0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
-  bailif0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
+  BAILIF0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
+  BAILIF0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
   for (i = 0; i < nc; i++) {
     int planeSize = tjPlaneSizeYUV(i, width, srcStrides[i], height, subsamp);
     int pw = tjPlaneWidth(i, width, subsamp);
 
     if (planeSize < 0 || pw < 0)
-      _throwarg(tjGetErrorStr());
+      THROW_ARG(tjGetErrorStr());
 
     if (srcOffsets[i] < 0)
-      _throwarg("Invalid argument in compressFromYUV()");
+      THROW_ARG("Invalid argument in compressFromYUV()");
     if (srcStrides[i] < 0 && srcOffsets[i] - planeSize + pw < 0)
-      _throwarg("Negative plane stride would cause memory to be accessed below plane boundary");
+      THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
 
-    bailif0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
+    BAILIF0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
     if ((*env)->GetArrayLength(env, jSrcPlanes[i]) < srcOffsets[i] + planeSize)
-      _throwarg("Source plane is not large enough");
+      THROW_ARG("Source plane is not large enough");
 
-    bailif0(srcPlanes[i] =
+    BAILIF0(srcPlanes[i] =
             (*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));
     srcPlanes[i] = &srcPlanes[i][srcOffsets[i]];
   }
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjCompressFromYUVPlanes(handle, srcPlanes, width, srcStrides, height,
                               subsamp, &jpegBuf, &jpegSize, jpegQual,
                               flags | TJFLAG_NOREALLOC) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
@@ -398,56 +398,56 @@
   int *dstOffsets = NULL, *dstStrides = NULL;
   int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
 
-  gethandle();
+  GET_HANDLE();
 
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
       height < 1 || pitch < 0 || subsamp < 0 ||
       subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
-    _throwarg("Invalid argument in encodeYUV()");
+    THROW_ARG("Invalid argument in encodeYUV()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
       org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   if ((*env)->GetArrayLength(env, dstobjs) < nc)
-    _throwarg("Planes array is too small for the subsampling type");
+    THROW_ARG("Planes array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jDstOffsets) < nc)
-    _throwarg("Offsets array is too small for the subsampling type");
+    THROW_ARG("Offsets array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jDstStrides) < nc)
-    _throwarg("Strides array is too small for the subsampling type");
+    THROW_ARG("Strides array is too small for the subsampling type");
 
   actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
   arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
   if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
-    _throwarg("Source buffer is not large enough");
+    THROW_ARG("Source buffer is not large enough");
 
-  bailif0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
-  bailif0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
+  BAILIF0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
+  BAILIF0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
   for (i = 0; i < nc; i++) {
     int planeSize = tjPlaneSizeYUV(i, width, dstStrides[i], height, subsamp);
     int pw = tjPlaneWidth(i, width, subsamp);
 
     if (planeSize < 0 || pw < 0)
-      _throwarg(tjGetErrorStr());
+      THROW_ARG(tjGetErrorStr());
 
     if (dstOffsets[i] < 0)
-      _throwarg("Invalid argument in encodeYUV()");
+      THROW_ARG("Invalid argument in encodeYUV()");
     if (dstStrides[i] < 0 && dstOffsets[i] - planeSize + pw < 0)
-      _throwarg("Negative plane stride would cause memory to be accessed below plane boundary");
+      THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
 
-    bailif0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
+    BAILIF0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
     if ((*env)->GetArrayLength(env, jDstPlanes[i]) < dstOffsets[i] + planeSize)
-      _throwarg("Destination plane is not large enough");
+      THROW_ARG("Destination plane is not large enough");
 
-    bailif0(dstPlanes[i] =
+    BAILIF0(dstPlanes[i] =
             (*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
     dstPlanes[i] = &dstPlanes[i][dstOffsets[i]];
   }
-  bailif0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
 
   if (tjEncodeYUVPlanes(handle, &srcBuf[y * actualPitch + x * tjPixelSize[pf]],
                         width, pitch, height, pf, dstPlanes, dstStrides,
                         subsamp, flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
@@ -479,9 +479,9 @@
    jintArray jDstOffsets, jintArray jDstStrides, jint subsamp, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in encodeYUV()");
+    THROW_ARG("Invalid argument in encodeYUV()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when encoding from an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when encoding from an integer buffer.");
 
   TJCompressor_encodeYUV(env, obj, src, sizeof(jint), x, y, width,
                          stride * sizeof(jint), height, pf, dstobjs,
@@ -499,27 +499,27 @@
   jsize arraySize = 0;
   unsigned char *srcBuf = NULL, *dstBuf = NULL;
 
-  gethandle();
+  GET_HANDLE();
 
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
       height < 1 || pitch < 0)
-    _throwarg("Invalid argument in encodeYUV()");
+    THROW_ARG("Invalid argument in encodeYUV()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   arraySize = (pitch == 0) ? width * tjPixelSize[pf] * height : pitch * height;
   if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
-    _throwarg("Source buffer is not large enough");
+    THROW_ARG("Source buffer is not large enough");
   if ((*env)->GetArrayLength(env, dst) <
       (jsize)tjBufSizeYUV(width, height, subsamp))
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
-  bailif0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
-  bailif0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjEncodeYUV2(handle, srcBuf, width, pitch, height, pf, dstBuf, subsamp,
                    flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
@@ -541,9 +541,9 @@
    jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in encodeYUV()");
+    THROW_ARG("Invalid argument in encodeYUV()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when encoding from an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when encoding from an integer buffer.");
 
   TJCompressor_encodeYUV_12(env, obj, src, sizeof(jint), width,
                             stride * sizeof(jint), height, pf, dst, subsamp,
@@ -559,9 +559,9 @@
 {
   tjhandle handle = 0;
 
-  gethandle();
+  GET_HANDLE();
 
-  if (tjDestroy(handle) == -1) _throwtj();
+  if (tjDestroy(handle) == -1) THROW_TJ();
   (*env)->SetLongField(env, obj, _fid, 0);
 
 bailout:
@@ -577,10 +577,10 @@
   tjhandle handle;
 
   if ((handle = tjInitDecompress()) == NULL)
-    _throw(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
+    THROW(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
 
-  bailif0(cls = (*env)->GetObjectClass(env, obj));
-  bailif0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
+  BAILIF0(cls = (*env)->GetObjectClass(env, obj));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
   (*env)->SetLongField(env, obj, fid, (size_t)handle);
 
 bailout:
@@ -599,17 +599,17 @@
   jobjectArray sfjava = NULL;
 
   if ((sf = tjGetScalingFactors(&n)) == NULL || n == 0)
-    _throwarg(tjGetErrorStr());
+    THROW_ARG(tjGetErrorStr());
 
-  bailif0(sfcls = (*env)->FindClass(env,
+  BAILIF0(sfcls = (*env)->FindClass(env,
     "org/libjpegturbo/turbojpeg/TJScalingFactor"));
-  bailif0(sfjava = (jobjectArray)(*env)->NewObjectArray(env, n, sfcls, 0));
+  BAILIF0(sfjava = (jobjectArray)(*env)->NewObjectArray(env, n, sfcls, 0));
 
   for (i = 0; i < n; i++) {
-    bailif0(sfobj = (*env)->AllocObject(env, sfcls));
-    bailif0(fid = (*env)->GetFieldID(env, sfcls, "num", "I"));
+    BAILIF0(sfobj = (*env)->AllocObject(env, sfcls));
+    BAILIF0(fid = (*env)->GetFieldID(env, sfcls, "num", "I"));
     (*env)->SetIntField(env, sfobj, fid, sf[i].num);
-    bailif0(fid = (*env)->GetFieldID(env, sfcls, "denom", "I"));
+    BAILIF0(fid = (*env)->GetFieldID(env, sfcls, "denom", "I"));
     (*env)->SetIntField(env, sfobj, fid, sf[i].denom);
     (*env)->SetObjectArrayElement(env, sfjava, i, sfobj);
   }
@@ -626,29 +626,29 @@
   unsigned char *jpegBuf = NULL;
   int width = 0, height = 0, jpegSubsamp = -1, jpegColorspace = -1;
 
-  gethandle();
+  GET_HANDLE();
 
   if ((*env)->GetArrayLength(env, src) < jpegSize)
-    _throwarg("Source buffer is not large enough");
+    THROW_ARG("Source buffer is not large enough");
 
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
 
   if (tjDecompressHeader3(handle, jpegBuf, (unsigned long)jpegSize, &width,
                           &height, &jpegSubsamp, &jpegColorspace) == -1)
-    _throwtj();
+    THROW_TJ();
 
   (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
   jpegBuf = NULL;
 
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
   (*env)->SetIntField(env, obj, _fid, jpegSubsamp);
   if ((_fid = (*env)->GetFieldID(env, _cls, "jpegColorspace", "I")) == 0)
     (*env)->ExceptionClear(env);
   else
     (*env)->SetIntField(env, obj, _fid, jpegColorspace);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
   (*env)->SetIntField(env, obj, _fid, width);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
   (*env)->SetIntField(env, obj, _fid, height);
 
 bailout:
@@ -664,27 +664,27 @@
   jsize arraySize = 0, actualPitch;
   unsigned char *jpegBuf = NULL, *dstBuf = NULL;
 
-  gethandle();
+  GET_HANDLE();
 
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in decompress()");
+    THROW_ARG("Invalid argument in decompress()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   if ((*env)->GetArrayLength(env, src) < jpegSize)
-    _throwarg("Source buffer is not large enough");
+    THROW_ARG("Source buffer is not large enough");
   actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
   arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
   if ((*env)->GetArrayLength(env, dst) * dstElementSize < arraySize)
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
-  bailif0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjDecompress2(handle, jpegBuf, (unsigned long)jpegSize,
                     &dstBuf[y * actualPitch + x * tjPixelSize[pf]], width,
                     pitch, height, pf, flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
@@ -715,9 +715,9 @@
    jint x, jint y, jint width, jint stride, jint height, jint pf, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in decompress()");
+    THROW_ARG("Invalid argument in decompress()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when decompressing to an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when decompressing to an integer buffer.");
 
   TJDecompressor_decompress(env, obj, src, jpegSize, dst, sizeof(jint), x, y,
                             width, stride * sizeof(jint), height, pf, flags);
@@ -732,9 +732,9 @@
    jint width, jint stride, jint height, jint pf, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in decompress()");
+    THROW_ARG("Invalid argument in decompress()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when decompressing to an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when decompressing to an integer buffer.");
 
   TJDecompressor_decompress(env, obj, src, jpegSize, dst, sizeof(jint), 0, 0,
                             width, stride * sizeof(jint), height, pf, flags);
@@ -757,15 +757,15 @@
   int nc = 0, i, width, height, scaledWidth, scaledHeight, nsf = 0;
   tjscalingfactor *sf;
 
-  gethandle();
+  GET_HANDLE();
 
   if ((*env)->GetArrayLength(env, src) < jpegSize)
-    _throwarg("Source buffer is not large enough");
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+    THROW_ARG("Source buffer is not large enough");
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
   jpegSubsamp = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
   jpegWidth = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
   jpegHeight = (int)(*env)->GetIntField(env, obj, _fid);
 
   nc = (jpegSubsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3);
@@ -776,7 +776,7 @@
   if (height == 0) height = jpegHeight;
   sf = tjGetScalingFactors(&nsf);
   if (!sf || nsf < 1)
-    _throwarg(tjGetErrorStr());
+    THROW_ARG(tjGetErrorStr());
   for (i = 0; i < nsf; i++) {
     scaledWidth = TJSCALED(jpegWidth, sf[i]);
     scaledHeight = TJSCALED(jpegHeight, sf[i]);
@@ -784,37 +784,37 @@
       break;
   }
   if (i >= nsf)
-    _throwarg("Could not scale down to desired image dimensions");
+    THROW_ARG("Could not scale down to desired image dimensions");
 
-  bailif0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
-  bailif0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
+  BAILIF0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
+  BAILIF0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
   for (i = 0; i < nc; i++) {
     int planeSize = tjPlaneSizeYUV(i, scaledWidth, dstStrides[i], scaledHeight,
                                    jpegSubsamp);
     int pw = tjPlaneWidth(i, scaledWidth, jpegSubsamp);
 
     if (planeSize < 0 || pw < 0)
-      _throwarg(tjGetErrorStr());
+      THROW_ARG(tjGetErrorStr());
 
     if (dstOffsets[i] < 0)
-      _throwarg("Invalid argument in decompressToYUV()");
+      THROW_ARG("Invalid argument in decompressToYUV()");
     if (dstStrides[i] < 0 && dstOffsets[i] - planeSize + pw < 0)
-      _throwarg("Negative plane stride would cause memory to be accessed below plane boundary");
+      THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
 
-    bailif0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
+    BAILIF0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
     if ((*env)->GetArrayLength(env, jDstPlanes[i]) < dstOffsets[i] + planeSize)
-      _throwarg("Destination plane is not large enough");
+      THROW_ARG("Destination plane is not large enough");
 
-    bailif0(dstPlanes[i] =
+    BAILIF0(dstPlanes[i] =
             (*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
     dstPlanes[i] = &dstPlanes[i][dstOffsets[i]];
   }
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
 
   if (tjDecompressToYUVPlanes(handle, jpegBuf, (unsigned long)jpegSize,
                               dstPlanes, desiredWidth, dstStrides,
                               desiredHeight, flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
@@ -838,26 +838,26 @@
   unsigned char *jpegBuf = NULL, *dstBuf = NULL;
   int jpegSubsamp = -1, jpegWidth = 0, jpegHeight = 0;
 
-  gethandle();
+  GET_HANDLE();
 
   if ((*env)->GetArrayLength(env, src) < jpegSize)
-    _throwarg("Source buffer is not large enough");
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+    THROW_ARG("Source buffer is not large enough");
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
   jpegSubsamp = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
   jpegWidth = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
   jpegHeight = (int)(*env)->GetIntField(env, obj, _fid);
   if ((*env)->GetArrayLength(env, dst) <
       (jsize)tjBufSizeYUV(jpegWidth, jpegHeight, jpegSubsamp))
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
-  bailif0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
+  BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjDecompressToYUV(handle, jpegBuf, (unsigned long)jpegSize, dstBuf,
                         flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
@@ -877,55 +877,55 @@
   int *srcOffsets = NULL, *srcStrides = NULL;
   int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
 
-  gethandle();
+  GET_HANDLE();
 
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || subsamp < 0 ||
       subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
-    _throwarg("Invalid argument in decodeYUV()");
+    THROW_ARG("Invalid argument in decodeYUV()");
   if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
       org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
-    _throwarg("Mismatch between Java and C API");
+    THROW_ARG("Mismatch between Java and C API");
 
   if ((*env)->GetArrayLength(env, srcobjs) < nc)
-    _throwarg("Planes array is too small for the subsampling type");
+    THROW_ARG("Planes array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jSrcOffsets) < nc)
-    _throwarg("Offsets array is too small for the subsampling type");
+    THROW_ARG("Offsets array is too small for the subsampling type");
   if ((*env)->GetArrayLength(env, jSrcStrides) < nc)
-    _throwarg("Strides array is too small for the subsampling type");
+    THROW_ARG("Strides array is too small for the subsampling type");
 
   actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
   arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
   if ((*env)->GetArrayLength(env, dst) * dstElementSize < arraySize)
-    _throwarg("Destination buffer is not large enough");
+    THROW_ARG("Destination buffer is not large enough");
 
-  bailif0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
-  bailif0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
+  BAILIF0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
+  BAILIF0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
   for (i = 0; i < nc; i++) {
     int planeSize = tjPlaneSizeYUV(i, width, srcStrides[i], height, subsamp);
     int pw = tjPlaneWidth(i, width, subsamp);
 
     if (planeSize < 0 || pw < 0)
-      _throwarg(tjGetErrorStr());
+      THROW_ARG(tjGetErrorStr());
 
     if (srcOffsets[i] < 0)
-      _throwarg("Invalid argument in decodeYUV()");
+      THROW_ARG("Invalid argument in decodeYUV()");
     if (srcStrides[i] < 0 && srcOffsets[i] - planeSize + pw < 0)
-      _throwarg("Negative plane stride would cause memory to be accessed below plane boundary");
+      THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
 
-    bailif0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
+    BAILIF0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
     if ((*env)->GetArrayLength(env, jSrcPlanes[i]) < srcOffsets[i] + planeSize)
-      _throwarg("Source plane is not large enough");
+      THROW_ARG("Source plane is not large enough");
 
-    bailif0(srcPlanes[i] =
+    BAILIF0(srcPlanes[i] =
             (*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));
     srcPlanes[i] = &srcPlanes[i][srcOffsets[i]];
   }
-  bailif0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
+  BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
 
   if (tjDecodeYUVPlanes(handle, srcPlanes, srcStrides, subsamp,
                         &dstBuf[y * actualPitch + x * tjPixelSize[pf]], width,
                         pitch, height, pf, flags) == -1)
-    _throwtj();
+    THROW_TJ();
 
 bailout:
   if (dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
@@ -958,9 +958,9 @@
    jint width, jint stride, jint height, jint pf, jint flags)
 {
   if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
-    _throwarg("Invalid argument in decodeYUV()");
+    THROW_ARG("Invalid argument in decodeYUV()");
   if (tjPixelSize[pf] != sizeof(jint))
-    _throwarg("Pixel format must be 32-bit when decoding to an integer buffer.");
+    THROW_ARG("Pixel format must be 32-bit when decoding to an integer buffer.");
 
   TJDecompressor_decodeYUV(env, obj, srcobjs, jSrcOffsets, jSrcStrides,
                            subsamp, dst, sizeof(jint), x, y, width,
@@ -979,10 +979,10 @@
   tjhandle handle;
 
   if ((handle = tjInitTransform()) == NULL)
-    _throw(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
+    THROW(tjGetErrorStr(), "org/libjpegturbo/turbojpeg/TJException");
 
-  bailif0(cls = (*env)->GetObjectClass(env, obj));
-  bailif0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
+  BAILIF0(cls = (*env)->GetObjectClass(env, obj));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
   (*env)->SetLongField(env, obj, fid, (size_t)handle);
 
 bailout:
@@ -1007,43 +1007,43 @@
   jmethodID mid;
   jfieldID fid;
 
-  bailif0(bufobj = (*env)->NewDirectByteBuffer(env, coeffs,
+  BAILIF0(bufobj = (*env)->NewDirectByteBuffer(env, coeffs,
     sizeof(short) * arrayRegion.w * arrayRegion.h));
-  bailif0(cls = (*env)->FindClass(env, "java/nio/ByteOrder"));
-  bailif0(mid = (*env)->GetStaticMethodID(env, cls, "nativeOrder",
+  BAILIF0(cls = (*env)->FindClass(env, "java/nio/ByteOrder"));
+  BAILIF0(mid = (*env)->GetStaticMethodID(env, cls, "nativeOrder",
                                           "()Ljava/nio/ByteOrder;"));
-  bailif0(borobj = (*env)->CallStaticObjectMethod(env, cls, mid));
-  bailif0(cls = (*env)->GetObjectClass(env, bufobj));
-  bailif0(mid = (*env)->GetMethodID(env, cls, "order",
+  BAILIF0(borobj = (*env)->CallStaticObjectMethod(env, cls, mid));
+  BAILIF0(cls = (*env)->GetObjectClass(env, bufobj));
+  BAILIF0(mid = (*env)->GetMethodID(env, cls, "order",
     "(Ljava/nio/ByteOrder;)Ljava/nio/ByteBuffer;"));
   (*env)->CallObjectMethod(env, bufobj, mid, borobj);
-  bailif0(mid = (*env)->GetMethodID(env, cls, "asShortBuffer",
+  BAILIF0(mid = (*env)->GetMethodID(env, cls, "asShortBuffer",
                                     "()Ljava/nio/ShortBuffer;"));
-  bailif0(bufobj = (*env)->CallObjectMethod(env, bufobj, mid));
+  BAILIF0(bufobj = (*env)->CallObjectMethod(env, bufobj, mid));
 
-  bailif0(cls = (*env)->FindClass(env, "java/awt/Rectangle"));
-  bailif0(arrayRegionObj = (*env)->AllocObject(env, cls));
-  bailif0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
+  BAILIF0(cls = (*env)->FindClass(env, "java/awt/Rectangle"));
+  BAILIF0(arrayRegionObj = (*env)->AllocObject(env, cls));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
   (*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.x);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
   (*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.y);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
   (*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.w);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
   (*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.h);
 
-  bailif0(planeRegionObj = (*env)->AllocObject(env, cls));
-  bailif0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
+  BAILIF0(planeRegionObj = (*env)->AllocObject(env, cls));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
   (*env)->SetIntField(env, planeRegionObj, fid, planeRegion.x);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
   (*env)->SetIntField(env, planeRegionObj, fid, planeRegion.y);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
   (*env)->SetIntField(env, planeRegionObj, fid, planeRegion.w);
-  bailif0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
+  BAILIF0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
   (*env)->SetIntField(env, planeRegionObj, fid, planeRegion.h);
 
-  bailif0(cls = (*env)->GetObjectClass(env, cfobj));
-  bailif0(mid = (*env)->GetMethodID(env, cls, "customFilter",
+  BAILIF0(cls = (*env)->GetObjectClass(env, cfobj));
+  BAILIF0(mid = (*env)->GetMethodID(env, cls, "customFilter",
     "(Ljava/nio/ShortBuffer;Ljava/awt/Rectangle;Ljava/awt/Rectangle;IILorg/libjpegturbo/turbojpeg/TJTransform;)V"));
   (*env)->CallVoidMethod(env, cfobj, mid, bufobj, arrayRegionObj,
                          planeRegionObj, componentIndex, transformIndex, tobj);
@@ -1070,33 +1070,33 @@
   jint *dstSizesi = NULL;
   JNICustomFilterParams *params = NULL;
 
-  gethandle();
+  GET_HANDLE();
 
   if ((*env)->GetArrayLength(env, jsrcBuf) < jpegSize)
-    _throwarg("Source buffer is not large enough");
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+    THROW_ARG("Source buffer is not large enough");
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
   jpegWidth = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
   jpegHeight = (int)(*env)->GetIntField(env, obj, _fid);
-  bailif0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+  BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
   jpegSubsamp = (int)(*env)->GetIntField(env, obj, _fid);
 
   n = (*env)->GetArrayLength(env, dstobjs);
   if (n != (*env)->GetArrayLength(env, tobjs))
-    _throwarg("Mismatch between size of transforms array and destination buffers array");
+    THROW_ARG("Mismatch between size of transforms array and destination buffers array");
 
   if ((dstBufs =
        (unsigned char **)malloc(sizeof(unsigned char *) * n)) == NULL)
-    _throwmem();
+    THROW_MEM();
   if ((jdstBufs = (jbyteArray *)malloc(sizeof(jbyteArray) * n)) == NULL)
-    _throwmem();
+    THROW_MEM();
   if ((dstSizes = (unsigned long *)malloc(sizeof(unsigned long) * n)) == NULL)
-    _throwmem();
+    THROW_MEM();
   if ((t = (tjtransform *)malloc(sizeof(tjtransform) * n)) == NULL)
-    _throwmem();
+    THROW_MEM();
   if ((params = (JNICustomFilterParams *)malloc(sizeof(JNICustomFilterParams) *
                                                 n)) == NULL)
-    _throwmem();
+    THROW_MEM();
   for (i = 0; i < n; i++) {
     dstBufs[i] = NULL;  jdstBufs[i] = NULL;  dstSizes[i] = 0;
     memset(&t[i], 0, sizeof(tjtransform));
@@ -1106,22 +1106,22 @@
   for (i = 0; i < n; i++) {
     jobject tobj, cfobj;
 
-    bailif0(tobj = (*env)->GetObjectArrayElement(env, tobjs, i));
-    bailif0(_cls = (*env)->GetObjectClass(env, tobj));
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "op", "I"));
+    BAILIF0(tobj = (*env)->GetObjectArrayElement(env, tobjs, i));
+    BAILIF0(_cls = (*env)->GetObjectClass(env, tobj));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "op", "I"));
     t[i].op = (*env)->GetIntField(env, tobj, _fid);
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "options", "I"));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "options", "I"));
     t[i].options = (*env)->GetIntField(env, tobj, _fid);
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "x", "I"));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "x", "I"));
     t[i].r.x = (*env)->GetIntField(env, tobj, _fid);
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "y", "I"));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "y", "I"));
     t[i].r.y = (*env)->GetIntField(env, tobj, _fid);
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "width", "I"));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "width", "I"));
     t[i].r.w = (*env)->GetIntField(env, tobj, _fid);
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "height", "I"));
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "height", "I"));
     t[i].r.h = (*env)->GetIntField(env, tobj, _fid);
 
-    bailif0(_fid = (*env)->GetFieldID(env, _cls, "cf",
+    BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "cf",
       "Lorg/libjpegturbo/turbojpeg/TJCustomFilter;"));
     cfobj = (*env)->GetObjectField(env, tobj, _fid);
     if (cfobj) {
@@ -1138,19 +1138,19 @@
 
     if (t[i].r.w != 0) w = t[i].r.w;
     if (t[i].r.h != 0) h = t[i].r.h;
-    bailif0(jdstBufs[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
+    BAILIF0(jdstBufs[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
     if ((unsigned long)(*env)->GetArrayLength(env, jdstBufs[i]) <
         tjBufSize(w, h, jpegSubsamp))
-      _throwarg("Destination buffer is not large enough");
+      THROW_ARG("Destination buffer is not large enough");
   }
-  bailif0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, jsrcBuf, 0));
+  BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, jsrcBuf, 0));
   for (i = 0; i < n; i++)
-    bailif0(dstBufs[i] =
+    BAILIF0(dstBufs[i] =
             (*env)->GetPrimitiveArrayCritical(env, jdstBufs[i], 0));
 
   if (tjTransform(handle, jpegBuf, jpegSize, n, dstBufs, dstSizes, t,
                   flags | TJFLAG_NOREALLOC) == -1)
-    _throwtj();
+    THROW_TJ();
 
   for (i = 0; i < n; i++) {
     (*env)->ReleasePrimitiveArrayCritical(env, jdstBufs[i], dstBufs[i], 0);
@@ -1160,7 +1160,7 @@
   jpegBuf = NULL;
 
   jdstSizes = (*env)->NewIntArray(env, n);
-  bailif0(dstSizesi = (*env)->GetIntArrayElements(env, jdstSizes, 0));
+  BAILIF0(dstSizesi = (*env)->GetIntArrayElements(env, jdstSizes, 0));
   for (i = 0; i < n; i++) dstSizesi[i] = (int)dstSizes[i];
 
 bailout:
diff --git a/turbojpeg.c b/turbojpeg.c
index f57f981..f3d0ff3 100644
--- a/turbojpeg.c
+++ b/turbojpeg.c
@@ -50,7 +50,7 @@
                             unsigned long);
 
 #define PAD(v, p)  ((v + (p) - 1) & (~((p) - 1)))
-#define isPow2(x)  (((x) & (x - 1)) == 0)
+#define IS_POW2(x)  (((x) & (x - 1)) == 0)
 
 
 /* Error handling (based on example in example.txt) */
@@ -164,20 +164,20 @@
   TJPF_UNKNOWN
 };
 
-#define _throwg(m) { \
+#define THROWG(m) { \
   snprintf(errStr, JMSG_LENGTH_MAX, "%s", m); \
   retval = -1;  goto bailout; \
 }
-#define _throwunix(m) { \
+#define THROW_UNIX(m) { \
   snprintf(errStr, JMSG_LENGTH_MAX, "%s\n%s", m, strerror(errno)); \
   retval = -1;  goto bailout; \
 }
-#define _throw(m) { \
+#define THROW(m) { \
   snprintf(this->errStr, JMSG_LENGTH_MAX, "%s", m); \
-  this->isInstanceError = TRUE;  _throwg(m) \
+  this->isInstanceError = TRUE;  THROWG(m) \
 }
 
-#define getinstance(handle) \
+#define GET_INSTANCE(handle) \
   tjinstance *this = (tjinstance *)handle; \
   j_compress_ptr cinfo = NULL; \
   j_decompress_ptr dinfo = NULL; \
@@ -190,7 +190,7 @@
   this->jerr.warning = FALSE; \
   this->isInstanceError = FALSE;
 
-#define getcinstance(handle) \
+#define GET_CINSTANCE(handle) \
   tjinstance *this = (tjinstance *)handle; \
   j_compress_ptr cinfo = NULL; \
   \
@@ -202,7 +202,7 @@
   this->jerr.warning = FALSE; \
   this->isInstanceError = FALSE;
 
-#define getdinstance(handle) \
+#define GET_DINSTANCE(handle) \
   tjinstance *this = (tjinstance *)handle; \
   j_decompress_ptr dinfo = NULL; \
   \
@@ -415,7 +415,7 @@
 
 DLLEXPORT int tjDestroy(tjhandle handle)
 {
-  getinstance(handle);
+  GET_INSTANCE(handle);
 
   if (setjmp(this->jerr.setjmp_buffer)) return -1;
   if (this->init & COMPRESS) jpeg_destroy_compress(cinfo);
@@ -495,7 +495,7 @@
   int mcuw, mcuh, chromasf;
 
   if (width < 1 || height < 1 || jpegSubsamp < 0 || jpegSubsamp >= NUMSUBOPT)
-    _throwg("tjBufSize(): Invalid argument");
+    THROWG("tjBufSize(): Invalid argument");
 
   /* This allows for rare corner cases in which a JPEG image can actually be
      larger than the uncompressed input (we wouldn't mention it if it hadn't
@@ -514,7 +514,7 @@
   unsigned long retval = 0;
 
   if (width < 1 || height < 1)
-    _throwg("TJBUFSIZE(): Invalid argument");
+    THROWG("TJBUFSIZE(): Invalid argument");
 
   /* This allows for rare corner cases in which a JPEG image can actually be
      larger than the uncompressed input (we wouldn't mention it if it hadn't
@@ -532,7 +532,7 @@
   int retval = 0, nc, i;
 
   if (subsamp < 0 || subsamp >= NUMSUBOPT)
-    _throwg("tjBufSizeYUV2(): Invalid argument");
+    THROWG("tjBufSizeYUV2(): Invalid argument");
 
   nc = (subsamp == TJSAMP_GRAY ? 1 : 3);
   for (i = 0; i < nc; i++) {
@@ -564,10 +564,10 @@
   int pw, nc, retval = 0;
 
   if (width < 1 || subsamp < 0 || subsamp >= TJ_NUMSAMP)
-    _throwg("tjPlaneWidth(): Invalid argument");
+    THROWG("tjPlaneWidth(): Invalid argument");
   nc = (subsamp == TJSAMP_GRAY ? 1 : 3);
   if (componentID < 0 || componentID >= nc)
-    _throwg("tjPlaneWidth(): Invalid argument");
+    THROWG("tjPlaneWidth(): Invalid argument");
 
   pw = PAD(width, tjMCUWidth[subsamp] / 8);
   if (componentID == 0)
@@ -585,10 +585,10 @@
   int ph, nc, retval = 0;
 
   if (height < 1 || subsamp < 0 || subsamp >= TJ_NUMSAMP)
-    _throwg("tjPlaneHeight(): Invalid argument");
+    THROWG("tjPlaneHeight(): Invalid argument");
   nc = (subsamp == TJSAMP_GRAY ? 1 : 3);
   if (componentID < 0 || componentID >= nc)
-    _throwg("tjPlaneHeight(): Invalid argument");
+    THROWG("tjPlaneHeight(): Invalid argument");
 
   ph = PAD(height, tjMCUHeight[subsamp] / 8);
   if (componentID == 0)
@@ -608,7 +608,7 @@
   int pw, ph;
 
   if (width < 1 || height < 1 || subsamp < 0 || subsamp >= NUMSUBOPT)
-    _throwg("tjPlaneSizeYUV(): Invalid argument");
+    THROWG("tjPlaneSizeYUV(): Invalid argument");
 
   pw = tjPlaneWidth(componentID, width, subsamp);
   ph = tjPlaneHeight(componentID, height, subsamp);
@@ -632,21 +632,21 @@
   int i, retval = 0, alloc = 1;
   JSAMPROW *row_pointer = NULL;
 
-  getcinstance(handle)
+  GET_CINSTANCE(handle)
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
   if ((this->init & COMPRESS) == 0)
-    _throw("tjCompress2(): Instance has not been initialized for compression");
+    THROW("tjCompress2(): Instance has not been initialized for compression");
 
   if (srcBuf == NULL || width <= 0 || pitch < 0 || height <= 0 ||
       pixelFormat < 0 || pixelFormat >= TJ_NUMPF || jpegBuf == NULL ||
       jpegSize == NULL || jpegSubsamp < 0 || jpegSubsamp >= NUMSUBOPT ||
       jpegQual < 0 || jpegQual > 100)
-    _throw("tjCompress2(): Invalid argument");
+    THROW("tjCompress2(): Invalid argument");
 
   if (pitch == 0) pitch = width * tjPixelSize[pixelFormat];
 
   if ((row_pointer = (JSAMPROW *)malloc(sizeof(JSAMPROW) * height)) == NULL)
-    _throw("tjCompress2(): Memory allocation failure");
+    THROW("tjCompress2(): Memory allocation failure");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -725,7 +725,7 @@
   JSAMPLE *ptr;
   jpeg_component_info *compptr;
 
-  getcinstance(handle);
+  GET_CINSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
 
   for (i = 0; i < MAX_COMPONENTS; i++) {
@@ -734,17 +734,17 @@
   }
 
   if ((this->init & COMPRESS) == 0)
-    _throw("tjEncodeYUVPlanes(): Instance has not been initialized for compression");
+    THROW("tjEncodeYUVPlanes(): Instance has not been initialized for compression");
 
   if (srcBuf == NULL || width <= 0 || pitch < 0 || height <= 0 ||
       pixelFormat < 0 || pixelFormat >= TJ_NUMPF || !dstPlanes ||
       !dstPlanes[0] || subsamp < 0 || subsamp >= NUMSUBOPT)
-    _throw("tjEncodeYUVPlanes(): Invalid argument");
+    THROW("tjEncodeYUVPlanes(): Invalid argument");
   if (subsamp != TJSAMP_GRAY && (!dstPlanes[1] || !dstPlanes[2]))
-    _throw("tjEncodeYUVPlanes(): Invalid argument");
+    THROW("tjEncodeYUVPlanes(): Invalid argument");
 
   if (pixelFormat == TJPF_CMYK)
-    _throw("tjEncodeYUVPlanes(): Cannot generate YUV images from CMYK pixels");
+    THROW("tjEncodeYUVPlanes(): Cannot generate YUV images from CMYK pixels");
 
   if (pitch == 0) pitch = width * tjPixelSize[pixelFormat];
 
@@ -769,7 +769,7 @@
      to write the file headers, which could overflow the output buffer if the
      YUV image were very small. */
   if (cinfo->global_state != CSTATE_START)
-    _throw("tjEncodeYUVPlanes(): libjpeg API is in the wrong state");
+    THROW("tjEncodeYUVPlanes(): libjpeg API is in the wrong state");
   (*cinfo->err->reset_error_mgr) ((j_common_ptr)cinfo);
   jinit_c_master_control(cinfo, FALSE);
   jinit_color_converter(cinfo);
@@ -780,7 +780,7 @@
   ph0 = PAD(height, cinfo->max_v_samp_factor);
 
   if ((row_pointer = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph0)) == NULL)
-    _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+    THROW("tjEncodeYUVPlanes(): Memory allocation failure");
   for (i = 0; i < height; i++) {
     if (flags & TJFLAG_BOTTOMUP)
       row_pointer[i] = (JSAMPROW)&srcBuf[(height - i - 1) * pitch];
@@ -797,11 +797,11 @@
           compptr->h_samp_factor, 32) *
       cinfo->max_v_samp_factor + 32);
     if (!_tmpbuf[i])
-      _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+      THROW("tjEncodeYUVPlanes(): Memory allocation failure");
     tmpbuf[i] =
       (JSAMPROW *)malloc(sizeof(JSAMPROW) * cinfo->max_v_samp_factor);
     if (!tmpbuf[i])
-      _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+      THROW("tjEncodeYUVPlanes(): Memory allocation failure");
     for (row = 0; row < cinfo->max_v_samp_factor; row++) {
       unsigned char *_tmpbuf_aligned =
         (unsigned char *)PAD((size_t)_tmpbuf[i], 32);
@@ -814,10 +814,10 @@
       (JSAMPLE *)malloc(PAD(compptr->width_in_blocks * DCTSIZE, 32) *
                         compptr->v_samp_factor + 32);
     if (!_tmpbuf2[i])
-      _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+      THROW("tjEncodeYUVPlanes(): Memory allocation failure");
     tmpbuf2[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * compptr->v_samp_factor);
     if (!tmpbuf2[i])
-      _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+      THROW("tjEncodeYUVPlanes(): Memory allocation failure");
     for (row = 0; row < compptr->v_samp_factor; row++) {
       unsigned char *_tmpbuf2_aligned =
         (unsigned char *)PAD((size_t)_tmpbuf2[i], 32);
@@ -829,7 +829,7 @@
     ph[i] = ph0 * compptr->v_samp_factor / cinfo->max_v_samp_factor;
     outbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph[i]);
     if (!outbuf[i])
-      _throw("tjEncodeYUVPlanes(): Memory allocation failure");
+      THROW("tjEncodeYUVPlanes(): Memory allocation failure");
     ptr = dstPlanes[i];
     for (row = 0; row < ph[i]; row++) {
       outbuf[i][row] = ptr;
@@ -879,12 +879,12 @@
   int pw0, ph0, strides[3], retval = -1;
   tjinstance *this = (tjinstance *)handle;
 
-  if (!this) _throwg("tjEncodeYUV3(): Invalid handle");
+  if (!this) THROWG("tjEncodeYUV3(): Invalid handle");
   this->isInstanceError = FALSE;
 
-  if (width <= 0 || height <= 0 || dstBuf == NULL || pad < 0 || !isPow2(pad) ||
-      subsamp < 0 || subsamp >= NUMSUBOPT)
-    _throw("tjEncodeYUV3(): Invalid argument");
+  if (width <= 0 || height <= 0 || dstBuf == NULL || pad < 0 ||
+      !IS_POW2(pad) || subsamp < 0 || subsamp >= NUMSUBOPT)
+    THROW("tjEncodeYUV3(): Invalid argument");
 
   pw0 = tjPlaneWidth(0, width, subsamp);
   ph0 = tjPlaneHeight(0, height, subsamp);
@@ -941,7 +941,7 @@
   JSAMPLE *_tmpbuf = NULL, *ptr;
   JSAMPROW *inbuf[MAX_COMPONENTS], *tmpbuf[MAX_COMPONENTS];
 
-  getcinstance(handle)
+  GET_CINSTANCE(handle)
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
 
   for (i = 0; i < MAX_COMPONENTS; i++) {
@@ -949,14 +949,14 @@
   }
 
   if ((this->init & COMPRESS) == 0)
-    _throw("tjCompressFromYUVPlanes(): Instance has not been initialized for compression");
+    THROW("tjCompressFromYUVPlanes(): Instance has not been initialized for compression");
 
   if (!srcPlanes || !srcPlanes[0] || width <= 0 || height <= 0 ||
       subsamp < 0 || subsamp >= NUMSUBOPT || jpegBuf == NULL ||
       jpegSize == NULL || jpegQual < 0 || jpegQual > 100)
-    _throw("tjCompressFromYUVPlanes(): Invalid argument");
+    THROW("tjCompressFromYUVPlanes(): Invalid argument");
   if (subsamp != TJSAMP_GRAY && (!srcPlanes[1] || !srcPlanes[2]))
-    _throw("tjCompressFromYUVPlanes(): Invalid argument");
+    THROW("tjCompressFromYUVPlanes(): Invalid argument");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -995,7 +995,7 @@
     th[i] = compptr->v_samp_factor * DCTSIZE;
     tmpbufsize += iw[i] * th[i];
     if ((inbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph[i])) == NULL)
-      _throw("tjCompressFromYUVPlanes(): Memory allocation failure");
+      THROW("tjCompressFromYUVPlanes(): Memory allocation failure");
     ptr = (JSAMPLE *)srcPlanes[i];
     for (row = 0; row < ph[i]; row++) {
       inbuf[i][row] = ptr;
@@ -1004,11 +1004,11 @@
   }
   if (usetmpbuf) {
     if ((_tmpbuf = (JSAMPLE *)malloc(sizeof(JSAMPLE) * tmpbufsize)) == NULL)
-      _throw("tjCompressFromYUVPlanes(): Memory allocation failure");
+      THROW("tjCompressFromYUVPlanes(): Memory allocation failure");
     ptr = _tmpbuf;
     for (i = 0; i < cinfo->num_components; i++) {
       if ((tmpbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * th[i])) == NULL)
-        _throw("tjCompressFromYUVPlanes(): Memory allocation failure");
+        THROW("tjCompressFromYUVPlanes(): Memory allocation failure");
       for (row = 0; row < th[i]; row++) {
         tmpbuf[i][row] = ptr;
         ptr += iw[i];
@@ -1072,12 +1072,12 @@
   int pw0, ph0, strides[3], retval = -1;
   tjinstance *this = (tjinstance *)handle;
 
-  if (!this) _throwg("tjCompressFromYUV(): Invalid handle");
+  if (!this) THROWG("tjCompressFromYUV(): Invalid handle");
   this->isInstanceError = FALSE;
 
   if (srcBuf == NULL || width <= 0 || pad < 1 || height <= 0 || subsamp < 0 ||
       subsamp >= NUMSUBOPT)
-    _throw("tjCompressFromYUV(): Invalid argument");
+    THROW("tjCompressFromYUV(): Invalid argument");
 
   pw0 = tjPlaneWidth(0, width, subsamp);
   ph0 = tjPlaneHeight(0, height, subsamp);
@@ -1156,13 +1156,13 @@
 {
   int retval = 0;
 
-  getdinstance(handle);
+  GET_DINSTANCE(handle);
   if ((this->init & DECOMPRESS) == 0)
-    _throw("tjDecompressHeader3(): Instance has not been initialized for decompression");
+    THROW("tjDecompressHeader3(): Instance has not been initialized for decompression");
 
   if (jpegBuf == NULL || jpegSize <= 0 || width == NULL || height == NULL ||
       jpegSubsamp == NULL || jpegColorspace == NULL)
-    _throw("tjDecompressHeader3(): Invalid argument");
+    THROW("tjDecompressHeader3(): Invalid argument");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -1187,11 +1187,11 @@
   jpeg_abort_decompress(dinfo);
 
   if (*jpegSubsamp < 0)
-    _throw("tjDecompressHeader3(): Could not determine subsampling type for JPEG image");
+    THROW("tjDecompressHeader3(): Could not determine subsampling type for JPEG image");
   if (*jpegColorspace < 0)
-    _throw("tjDecompressHeader3(): Could not determine colorspace of JPEG image");
+    THROW("tjDecompressHeader3(): Could not determine colorspace of JPEG image");
   if (*width < 1 || *height < 1)
-    _throw("tjDecompressHeader3(): Invalid data returned in header");
+    THROW("tjDecompressHeader3(): Invalid data returned in header");
 
 bailout:
   if (this->jerr.warning) retval = -1;
@@ -1240,14 +1240,14 @@
   JSAMPROW *row_pointer = NULL;
   int i, retval = 0, jpegwidth, jpegheight, scaledw, scaledh;
 
-  getdinstance(handle);
+  GET_DINSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
   if ((this->init & DECOMPRESS) == 0)
-    _throw("tjDecompress2(): Instance has not been initialized for decompression");
+    THROW("tjDecompress2(): Instance has not been initialized for decompression");
 
   if (jpegBuf == NULL || jpegSize <= 0 || dstBuf == NULL || width < 0 ||
       pitch < 0 || height < 0 || pixelFormat < 0 || pixelFormat >= TJ_NUMPF)
-    _throw("tjDecompress2(): Invalid argument");
+    THROW("tjDecompress2(): Invalid argument");
 
 #ifndef NO_PUTENV
   if (flags & TJFLAG_FORCEMMX) putenv("JSIMD_FORCEMMX=1");
@@ -1276,7 +1276,7 @@
       break;
   }
   if (i >= NUMSF)
-    _throw("tjDecompress2(): Could not scale down to desired image dimensions");
+    THROW("tjDecompress2(): Could not scale down to desired image dimensions");
   width = scaledw;  height = scaledh;
   dinfo->scale_num = sf[i].num;
   dinfo->scale_denom = sf[i].denom;
@@ -1286,7 +1286,7 @@
 
   if ((row_pointer =
        (JSAMPROW *)malloc(sizeof(JSAMPROW) * dinfo->output_height)) == NULL)
-    _throw("tjDecompress2(): Memory allocation failure");
+    THROW("tjDecompress2(): Memory allocation failure");
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
     retval = -1;  goto bailout;
@@ -1388,7 +1388,7 @@
   int (*old_read_markers) (j_decompress_ptr);
   void (*old_reset_marker_reader) (j_decompress_ptr);
 
-  getdinstance(handle);
+  GET_DINSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
 
   for (i = 0; i < MAX_COMPONENTS; i++) {
@@ -1396,14 +1396,14 @@
   }
 
   if ((this->init & DECOMPRESS) == 0)
-    _throw("tjDecodeYUVPlanes(): Instance has not been initialized for decompression");
+    THROW("tjDecodeYUVPlanes(): Instance has not been initialized for decompression");
 
   if (!srcPlanes || !srcPlanes[0] || subsamp < 0 || subsamp >= NUMSUBOPT ||
       dstBuf == NULL || width <= 0 || pitch < 0 || height <= 0 ||
       pixelFormat < 0 || pixelFormat >= TJ_NUMPF)
-    _throw("tjDecodeYUVPlanes(): Invalid argument");
+    THROW("tjDecodeYUVPlanes(): Invalid argument");
   if (subsamp != TJSAMP_GRAY && (!srcPlanes[1] || !srcPlanes[2]))
-    _throw("tjDecodeYUVPlanes(): Invalid argument");
+    THROW("tjDecodeYUVPlanes(): Invalid argument");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -1411,7 +1411,7 @@
   }
 
   if (pixelFormat == TJPF_CMYK)
-    _throw("tjDecodeYUVPlanes(): Cannot decode YUV images into CMYK pixels.");
+    THROW("tjDecodeYUVPlanes(): Cannot decode YUV images into CMYK pixels.");
 
   if (pitch == 0) pitch = width * tjPixelSize[pixelFormat];
   dinfo->image_width = width;
@@ -1447,7 +1447,7 @@
   if (pitch == 0) pitch = dinfo->output_width * tjPixelSize[pixelFormat];
 
   if ((row_pointer = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph0)) == NULL)
-    _throw("tjDecodeYUVPlanes(): Memory allocation failure");
+    THROW("tjDecodeYUVPlanes(): Memory allocation failure");
   for (i = 0; i < height; i++) {
     if (flags & TJFLAG_BOTTOMUP)
       row_pointer[i] = &dstBuf[(height - i - 1) * pitch];
@@ -1463,10 +1463,10 @@
       (JSAMPLE *)malloc(PAD(compptr->width_in_blocks * DCTSIZE, 32) *
                         compptr->v_samp_factor + 32);
     if (!_tmpbuf[i])
-      _throw("tjDecodeYUVPlanes(): Memory allocation failure");
+      THROW("tjDecodeYUVPlanes(): Memory allocation failure");
     tmpbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * compptr->v_samp_factor);
     if (!tmpbuf[i])
-      _throw("tjDecodeYUVPlanes(): Memory allocation failure");
+      THROW("tjDecodeYUVPlanes(): Memory allocation failure");
     for (row = 0; row < compptr->v_samp_factor; row++) {
       unsigned char *_tmpbuf_aligned =
         (unsigned char *)PAD((size_t)_tmpbuf[i], 32);
@@ -1478,7 +1478,7 @@
     ph[i] = ph0 * compptr->v_samp_factor / dinfo->max_v_samp_factor;
     inbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph[i]);
     if (!inbuf[i])
-      _throw("tjDecodeYUVPlanes(): Memory allocation failure");
+      THROW("tjDecodeYUVPlanes(): Memory allocation failure");
     ptr = (JSAMPLE *)srcPlanes[i];
     for (row = 0; row < ph[i]; row++) {
       inbuf[i][row] = ptr;
@@ -1527,12 +1527,12 @@
   int pw0, ph0, strides[3], retval = -1;
   tjinstance *this = (tjinstance *)handle;
 
-  if (!this) _throwg("tjDecodeYUV(): Invalid handle");
+  if (!this) THROWG("tjDecodeYUV(): Invalid handle");
   this->isInstanceError = FALSE;
 
-  if (srcBuf == NULL || pad < 0 || !isPow2(pad) || subsamp < 0 ||
+  if (srcBuf == NULL || pad < 0 || !IS_POW2(pad) || subsamp < 0 ||
       subsamp >= NUMSUBOPT || width <= 0 || height <= 0)
-    _throw("tjDecodeYUV(): Invalid argument");
+    THROW("tjDecodeYUV(): Invalid argument");
 
   pw0 = tjPlaneWidth(0, width, subsamp);
   ph0 = tjPlaneHeight(0, height, subsamp);
@@ -1571,7 +1571,7 @@
   JSAMPROW *outbuf[MAX_COMPONENTS], *tmpbuf[MAX_COMPONENTS];
   int dctsize;
 
-  getdinstance(handle);
+  GET_DINSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
 
   for (i = 0; i < MAX_COMPONENTS; i++) {
@@ -1579,11 +1579,11 @@
   }
 
   if ((this->init & DECOMPRESS) == 0)
-    _throw("tjDecompressToYUVPlanes(): Instance has not been initialized for decompression");
+    THROW("tjDecompressToYUVPlanes(): Instance has not been initialized for decompression");
 
   if (jpegBuf == NULL || jpegSize <= 0 || !dstPlanes || !dstPlanes[0] ||
       width < 0 || height < 0)
-    _throw("tjDecompressToYUVPlanes(): Invalid argument");
+    THROW("tjDecompressToYUVPlanes(): Invalid argument");
 
 #ifndef NO_PUTENV
   if (flags & TJFLAG_FORCEMMX) putenv("JSIMD_FORCEMMX=1");
@@ -1603,10 +1603,10 @@
   this->headerRead = 0;
   jpegSubsamp = getSubsamp(dinfo);
   if (jpegSubsamp < 0)
-    _throw("tjDecompressToYUVPlanes(): Could not determine subsampling type for JPEG image");
+    THROW("tjDecompressToYUVPlanes(): Could not determine subsampling type for JPEG image");
 
   if (jpegSubsamp != TJSAMP_GRAY && (!dstPlanes[1] || !dstPlanes[2]))
-    _throw("tjDecompressToYUVPlanes(): Invalid argument");
+    THROW("tjDecompressToYUVPlanes(): Invalid argument");
 
   jpegwidth = dinfo->image_width;  jpegheight = dinfo->image_height;
   if (width == 0) width = jpegwidth;
@@ -1618,9 +1618,9 @@
       break;
   }
   if (i >= NUMSF)
-    _throw("tjDecompressToYUVPlanes(): Could not scale down to desired image dimensions");
+    THROW("tjDecompressToYUVPlanes(): Could not scale down to desired image dimensions");
   if (dinfo->num_components > 3)
-    _throw("tjDecompressToYUVPlanes(): JPEG image must have 3 or fewer components");
+    THROW("tjDecompressToYUVPlanes(): JPEG image must have 3 or fewer components");
 
   width = scaledw;  height = scaledh;
   dinfo->scale_num = sf[i].num;
@@ -1644,7 +1644,7 @@
     th[i] = compptr->v_samp_factor * dctsize;
     tmpbufsize += iw[i] * th[i];
     if ((outbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * ph[i])) == NULL)
-      _throw("tjDecompressToYUVPlanes(): Memory allocation failure");
+      THROW("tjDecompressToYUVPlanes(): Memory allocation failure");
     ptr = dstPlanes[i];
     for (row = 0; row < ph[i]; row++) {
       outbuf[i][row] = ptr;
@@ -1653,11 +1653,11 @@
   }
   if (usetmpbuf) {
     if ((_tmpbuf = (JSAMPLE *)malloc(sizeof(JSAMPLE) * tmpbufsize)) == NULL)
-      _throw("tjDecompressToYUVPlanes(): Memory allocation failure");
+      THROW("tjDecompressToYUVPlanes(): Memory allocation failure");
     ptr = _tmpbuf;
     for (i = 0; i < dinfo->num_components; i++) {
       if ((tmpbuf[i] = (JSAMPROW *)malloc(sizeof(JSAMPROW) * th[i])) == NULL)
-        _throw("tjDecompressToYUVPlanes(): Memory allocation failure");
+        THROW("tjDecompressToYUVPlanes(): Memory allocation failure");
       for (row = 0; row < th[i]; row++) {
         tmpbuf[i][row] = ptr;
         ptr += iw[i];
@@ -1738,12 +1738,12 @@
   int pw0, ph0, strides[3], retval = -1, jpegSubsamp = -1;
   int i, jpegwidth, jpegheight, scaledw, scaledh;
 
-  getdinstance(handle);
+  GET_DINSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
 
   if (jpegBuf == NULL || jpegSize <= 0 || dstBuf == NULL || width < 0 ||
-      pad < 1 || !isPow2(pad) || height < 0)
-    _throw("tjDecompressToYUV2(): Invalid argument");
+      pad < 1 || !IS_POW2(pad) || height < 0)
+    THROW("tjDecompressToYUV2(): Invalid argument");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -1754,7 +1754,7 @@
   jpeg_read_header(dinfo, TRUE);
   jpegSubsamp = getSubsamp(dinfo);
   if (jpegSubsamp < 0)
-    _throw("tjDecompressToYUV2(): Could not determine subsampling type for JPEG image");
+    THROW("tjDecompressToYUV2(): Could not determine subsampling type for JPEG image");
 
   jpegwidth = dinfo->image_width;  jpegheight = dinfo->image_height;
   if (width == 0) width = jpegwidth;
@@ -1767,7 +1767,7 @@
       break;
   }
   if (i >= NUMSF)
-    _throw("tjDecompressToYUV2(): Could not scale down to desired image dimensions");
+    THROW("tjDecompressToYUV2(): Could not scale down to desired image dimensions");
 
   pw0 = tjPlaneWidth(0, width, jpegSubsamp);
   ph0 = tjPlaneHeight(0, height, jpegSubsamp);
@@ -1832,14 +1832,14 @@
   jvirt_barray_ptr *srccoefs, *dstcoefs;
   int retval = 0, i, jpegSubsamp, saveMarkers = 0;
 
-  getinstance(handle);
+  GET_INSTANCE(handle);
   this->jerr.stopOnWarning = (flags & TJFLAG_STOPONWARNING) ? TRUE : FALSE;
   if ((this->init & COMPRESS) == 0 || (this->init & DECOMPRESS) == 0)
-    _throw("tjTransform(): Instance has not been initialized for transformation");
+    THROW("tjTransform(): Instance has not been initialized for transformation");
 
   if (jpegBuf == NULL || jpegSize <= 0 || n < 1 || dstBufs == NULL ||
       dstSizes == NULL || t == NULL || flags < 0)
-    _throw("tjTransform(): Invalid argument");
+    THROW("tjTransform(): Invalid argument");
 
 #ifndef NO_PUTENV
   if (flags & TJFLAG_FORCEMMX) putenv("JSIMD_FORCEMMX=1");
@@ -1849,7 +1849,7 @@
 
   if ((xinfo =
        (jpeg_transform_info *)malloc(sizeof(jpeg_transform_info) * n)) == NULL)
-    _throw("tjTransform(): Memory allocation failure");
+    THROW("tjTransform(): Memory allocation failure");
   MEMZERO(xinfo, sizeof(jpeg_transform_info) * n);
 
   if (setjmp(this->jerr.setjmp_buffer)) {
@@ -1887,11 +1887,11 @@
   jpeg_read_header(dinfo, TRUE);
   jpegSubsamp = getSubsamp(dinfo);
   if (jpegSubsamp < 0)
-    _throw("tjTransform(): Could not determine subsampling type for JPEG image");
+    THROW("tjTransform(): Could not determine subsampling type for JPEG image");
 
   for (i = 0; i < n; i++) {
     if (!jtransform_request_workspace(dinfo, &xinfo[i]))
-      _throw("tjTransform(): Transform is not perfect");
+      THROW("tjTransform(): Transform is not perfect");
 
     if (xinfo[i].crop) {
       if ((t[i].r.x % xinfo[i].iMCU_sample_width) != 0 ||
@@ -1954,7 +1954,7 @@
           for (y = 0; y < compptr->v_samp_factor; y++) {
             if (t[i].customFilter(barray[y][0], arrayRegion, planeRegion, ci,
                                   i, &t[i]) == -1)
-              _throw("tjTransform(): Error in custom filter");
+              THROW("tjTransform(): Error in custom filter");
             arrayRegion.y += DCTSIZE;
           }
         }
@@ -1991,21 +1991,21 @@
 
   if (!filename || !width || align < 1 || !height || !pixelFormat ||
       *pixelFormat < TJPF_UNKNOWN || *pixelFormat >= TJ_NUMPF)
-    _throwg("tjLoadImage(): Invalid argument");
+    THROWG("tjLoadImage(): Invalid argument");
   if ((align & (align - 1)) != 0)
-    _throwg("tjLoadImage(): Alignment must be a power of 2");
+    THROWG("tjLoadImage(): Alignment must be a power of 2");
 
   if ((handle = tjInitCompress()) == NULL) return NULL;
   this = (tjinstance *)handle;
   cinfo = &this->cinfo;
 
   if ((file = fopen(filename, "rb")) == NULL)
-    _throwunix("tjLoadImage(): Cannot open input file");
+    THROW_UNIX("tjLoadImage(): Cannot open input file");
 
   if ((tempc = getc(file)) < 0 || ungetc(tempc, file) == EOF)
-    _throwunix("tjLoadImage(): Could not read input file")
+    THROW_UNIX("tjLoadImage(): Could not read input file")
   else if (tempc == EOF)
-    _throwg("tjLoadImage(): Input file contains no data");
+    THROWG("tjLoadImage(): Input file contains no data");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -2016,14 +2016,14 @@
   else cinfo->in_color_space = pf2cs[*pixelFormat];
   if (tempc == 'B') {
     if ((src = jinit_read_bmp(cinfo, FALSE)) == NULL)
-      _throwg("tjLoadImage(): Could not initialize bitmap loader");
+      THROWG("tjLoadImage(): Could not initialize bitmap loader");
     invert = (flags & TJFLAG_BOTTOMUP) == 0;
   } else if (tempc == 'P') {
     if ((src = jinit_read_ppm(cinfo)) == NULL)
-      _throwg("tjLoadImage(): Could not initialize bitmap loader");
+      THROWG("tjLoadImage(): Could not initialize bitmap loader");
     invert = (flags & TJFLAG_BOTTOMUP) != 0;
   } else
-    _throwg("tjLoadImage(): Unsupported file type");
+    THROWG("tjLoadImage(): Unsupported file type");
 
   src->input_file = file;
   (*src->start_input) (cinfo, src);
@@ -2036,7 +2036,7 @@
   if ((unsigned long long)pitch * (unsigned long long)(*height) >
       (unsigned long long)((size_t)-1) ||
       (dstBuf = (unsigned char *)malloc(pitch * (*height))) == NULL)
-    _throwg("tjLoadImage(): Memory allocation failure");
+    THROWG("tjLoadImage(): Memory allocation failure");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -2083,7 +2083,7 @@
 
   if (!filename || !buffer || width < 1 || pitch < 0 || height < 1 ||
       pixelFormat < 0 || pixelFormat >= TJ_NUMPF)
-    _throwg("tjSaveImage(): Invalid argument");
+    THROWG("tjSaveImage(): Invalid argument");
 
   if ((handle = tjInitDecompress()) == NULL)
     return -1;
@@ -2091,7 +2091,7 @@
   dinfo = &this->dinfo;
 
   if ((file = fopen(filename, "wb")) == NULL)
-    _throwunix("tjSaveImage(): Cannot open output file");
+    THROW_UNIX("tjSaveImage(): Cannot open output file");
 
   if (setjmp(this->jerr.setjmp_buffer)) {
     /* If we get here, the JPEG code has signaled an error. */
@@ -2106,11 +2106,11 @@
   ptr = strrchr(filename, '.');
   if (ptr && !strcasecmp(ptr, ".bmp")) {
     if ((dst = jinit_write_bmp(dinfo, FALSE, FALSE)) == NULL)
-      _throwg("tjSaveImage(): Could not initialize bitmap writer");
+      THROWG("tjSaveImage(): Could not initialize bitmap writer");
     invert = (flags & TJFLAG_BOTTOMUP) == 0;
   } else {
     if ((dst = jinit_write_ppm(dinfo)) == NULL)
-      _throwg("tjSaveImage(): Could not initialize PPM writer");
+      THROWG("tjSaveImage(): Could not initialize PPM writer");
     invert = (flags & TJFLAG_BOTTOMUP) != 0;
   }