src/audio/SDL_mixer.c
changeset 1985 8055185ae4ed
parent 1982 3b4ce57c6215
child 2013 0615fa58c0be
equal deleted inserted replaced
1984:b910bcabec26 1985:8055185ae4ed
   261         {
   261         {
   262             const Uint32 *src32 = (Uint32 *) src;
   262             const Uint32 *src32 = (Uint32 *) src;
   263             Uint32 *dst32 = (Uint32 *) dst;
   263             Uint32 *dst32 = (Uint32 *) dst;
   264             Sint32 src1, src2;
   264             Sint32 src1, src2;
   265             Sint64 dst_sample;
   265             Sint64 dst_sample;
   266             const Sint64 max_audioval = ((((Sint64)1) << (32 - 1)) - 1);
   266             const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
   267             const Sint64 min_audioval = -(((Sint64)1) << (32 - 1));
   267             const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
   268 
   268 
   269             len /= 4;
   269             len /= 4;
   270             while (len--) {
   270             while (len--) {
   271                 src1 = (Sint32) SDL_SwapLE32(*src32);
   271                 src1 = (Sint32) SDL_SwapLE32(*src32);
   272                 src32++;
   272                 src32++;
   287         {
   287         {
   288             const Uint32 *src32 = (Uint32 *) src;
   288             const Uint32 *src32 = (Uint32 *) src;
   289             Uint32 *dst32 = (Uint32 *) dst;
   289             Uint32 *dst32 = (Uint32 *) dst;
   290             Sint32 src1, src2;
   290             Sint32 src1, src2;
   291             Sint64 dst_sample;
   291             Sint64 dst_sample;
   292             const Sint64 max_audioval = ((((Sint64)1) << (32 - 1)) - 1);
   292             const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
   293             const Sint64 min_audioval = -(((Sint64)1) << (32 - 1));
   293             const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
   294 
   294 
   295             len /= 4;
   295             len /= 4;
   296             while (len--) {
   296             while (len--) {
   297                 src1 = (Sint32) SDL_SwapBE32(*src32);
   297                 src1 = (Sint32) SDL_SwapBE32(*src32);
   298                 src32++;
   298                 src32++;
   320             /* !!! FIXME: are these right? */
   320             /* !!! FIXME: are these right? */
   321             const double max_audioval = 3.40282347e+38F;
   321             const double max_audioval = 3.40282347e+38F;
   322             const double min_audioval = -3.40282347e+38F;
   322             const double min_audioval = -3.40282347e+38F;
   323 
   323 
   324             /* !!! FIXME: this is a little nasty. */
   324             /* !!! FIXME: this is a little nasty. */
   325             union { float f; Uint32 ui32; } cvt;
   325             union
       
   326             {
       
   327                 float f;
       
   328                 Uint32 ui32;
       
   329             } cvt;
   326 
   330 
   327             len /= 4;
   331             len /= 4;
   328             while (len--) {
   332             while (len--) {
   329                 cvt.f = *(src32++);
   333                 cvt.f = *(src32++);
   330                 cvt.ui32 = SDL_SwapLE32(cvt.ui32);
   334                 cvt.ui32 = SDL_SwapLE32(cvt.ui32);
   358             /* !!! FIXME: are these right? */
   362             /* !!! FIXME: are these right? */
   359             const double max_audioval = 3.40282347e+38F;
   363             const double max_audioval = 3.40282347e+38F;
   360             const double min_audioval = -3.40282347e+38F;
   364             const double min_audioval = -3.40282347e+38F;
   361 
   365 
   362             /* !!! FIXME: this is a little nasty. */
   366             /* !!! FIXME: this is a little nasty. */
   363             union { float f; Uint32 ui32; } cvt;
   367             union
       
   368             {
       
   369                 float f;
       
   370                 Uint32 ui32;
       
   371             } cvt;
   364 
   372 
   365             len /= 4;
   373             len /= 4;
   366             while (len--) {
   374             while (len--) {
   367                 cvt.f = *(src32++);
   375                 cvt.f = *(src32++);
   368                 cvt.ui32 = SDL_SwapBE32(cvt.ui32);
   376                 cvt.ui32 = SDL_SwapBE32(cvt.ui32);