Fix arm32 compiler warnings

Author: ankith26

src_c/bitmask.c

@@ -39,56 +39,48 @@
 static INLINE unsigned int
 bitcount(BITMASK_W n)
 {
-    const int bitmask_len = BITMASK_W_LEN;
-    if (bitmask_len == 32) {
+#if BITMASK_W_LEN == 32
 #ifdef GILLIES
-        /* (C) Donald W. Gillies, 1992.  All rights reserved.  You may reuse
-           this bitcount() function anywhere you please as long as you retain
-           this Copyright Notice. */
-        register unsigned long tmp;
-        return (tmp = (n) - (((n) >> 1) & 033333333333) -
-                      (((n) >> 2) & 011111111111),
-                tmp = ((tmp + (tmp >> 3)) & 030707070707),
-                tmp = (tmp + (tmp >> 6)),
-                tmp = (tmp + (tmp >> 12) + (tmp >> 24)) & 077);
+    /* (C) Donald W. Gillies, 1992.  All rights reserved.  You may reuse
+       this bitcount() function anywhere you please as long as you retain
+       this Copyright Notice. */
+    register unsigned long tmp;
+    return (
+        tmp = (n) - (((n) >> 1) & 033333333333) - (((n) >> 2) & 011111111111),
+        tmp = ((tmp + (tmp >> 3)) & 030707070707), tmp = (tmp + (tmp >> 6)),
+        tmp = (tmp + (tmp >> 12) + (tmp >> 24)) & 077);
 /* End of Donald W. Gillies bitcount code */
-#else
-        /* This piece taken from Jorg Arndt's "Algorithms for Programmers" */
-        n = ((n >> 1) & 0x55555555) + (n & 0x55555555);  // 0-2 in 2 bits
-        n = ((n >> 2) & 0x33333333) + (n & 0x33333333);  // 0-4 in 4 bits
-        n = ((n >> 4) + n) & 0x0f0f0f0f;                 // 0-8 in 4 bits
-        n += n >> 8;                                     // 0-16 in 8 bits
-        n += n >> 16;                                    // 0-32 in 8 bits
-        return n & 0xff;
-#endif
-    }
-    else if (bitmask_len == 64) {
-        n = ((n >> 1) & 0x5555555555555555) + (n & 0x5555555555555555);
-        n = ((n >> 2) & 0x3333333333333333) + (n & 0x3333333333333333);
-        n = ((n >> 4) + n) & 0x0f0f0f0f0f0f0f0f;
-        n += n >> 8;
-        n += n >> 16;
-#ifdef _WIN32
-        /* Use explicit typecast to silence MSVC warning about large bitshift,
-         * even though this part code does not run on windows */
-        n += (long long)n >> 32;
-#else
-        n += n >> 32;
-#endif
-        return n & 0xff;
-    }
-    else {
-        /* Handle non-32 or 64 bit case the slow way */
-        unsigned int nbits = 0;
-        while (n) {
-            if (n & 1)
-                nbits++;
-            n = n >> 1;
-        }
-        return nbits;
+#else  /* ~GILLIES */
+    /* This piece taken from Jorg Arndt's "Algorithms for Programmers" */
+    n = ((n >> 1) & 0x55555555) + (n & 0x55555555);  // 0-2 in 2 bits
+    n = ((n >> 2) & 0x33333333) + (n & 0x33333333);  // 0-4 in 4 bits
+    n = ((n >> 4) + n) & 0x0f0f0f0f;                 // 0-8 in 4 bits
+    n += n >> 8;                                     // 0-16 in 8 bits
+    n += n >> 16;                                    // 0-32 in 8 bits
+    return n & 0xff;
+#endif /* ~GILLIES */
+#elif BITMASK_W_LEN == 64
+    n = ((n >> 1) & 0x5555555555555555) + (n & 0x5555555555555555);
+    n = ((n >> 2) & 0x3333333333333333) + (n & 0x3333333333333333);
+    n = ((n >> 4) + n) & 0x0f0f0f0f0f0f0f0f;
+    n += n >> 8;
+    n += n >> 16;
+    n += n >> 32;
+    return n & 0xff;
+#else  /* BITMASK_W_LEN */
+    /* Handle non-32 or 64 bit case the slow way */
+    unsigned int nbits = 0;
+    while (n) {
+        if (n & 1)
+            nbits++;
+        n = n >> 1;
     }
+    return nbits;
+#endif /* BITMASK_W_LEN */
 }
 
+__builtin__popcount
+
 /* Positive modulo of the given dividend and divisor (dividend % divisor).
  *
  * Params:

src_c/color.c

@@ -2356,9 +2356,14 @@ _pg_pylong_to_uint32(PyObject *val, Uint32 *color, int handle_negative)
      * with most significant bit set could be incorrectly exposed as
      * negative
      */
-    if (longval > 0xFFFFFFFF || (longval < 0 && !handle_negative)) {
+    if (longval < 0 && !handle_negative) {
         goto error;
     }
+#if LONG_BIT > 32
+    if (longval > 0xFFFFFFFF) {
+        goto error;
+    }
+#endif
 
     *color = (Uint32)longval;
     return 1;

src_c/include/bitmask.h

@@ -26,6 +26,8 @@ extern "C" {
 #endif
 
 #include <limits.h>
+#include <Python.h>
+
 /* Define INLINE for different compilers.  If your compiler does not
    support inlining then there might be a performance hit in
    bitmask_overlap_area().
@@ -43,7 +45,7 @@ extern "C" {
 #endif
 
 #define BITMASK_W unsigned long int
-#define BITMASK_W_LEN (sizeof(BITMASK_W) * CHAR_BIT)
+#define BITMASK_W_LEN LONG_BIT
 #define BITMASK_W_MASK (BITMASK_W_LEN - 1)
 #define BITMASK_N(n) ((BITMASK_W)1 << (n))
 

src_c/mixer.c

@@ -255,7 +255,8 @@ _format_view_to_audio(Py_buffer *view)
                          view->format);
             return 0;
     }
-    if (view->itemsize && PG_SAMPLE_SIZE(format) != view->itemsize) {
+    if (view->itemsize &&
+        PG_SAMPLE_SIZE(format) != (unsigned int)view->itemsize) {
         PyErr_Format(PyExc_ValueError,
                      "Array item size %d does not match format '%s'",
                      (int)view->itemsize, view->format);