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audio: Patched to compile (mixed declarations and code).

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Ryan C. Gordon 2024-01-16 10:07:14 -05:00
parent 1e2f311811
commit c69e858e7a
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GPG key ID: FA148B892AB48044
1 changed files with 6 additions and 4 deletions
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10
src/audio/SDL_audiotypecvt.c
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@ -256,10 +256,11 @@ static void SDLCALL SDL_Convert_F32_to_S16_Scalar(SDL_AudioCVT *cvt, SDL_AudioFo
* 2) Shift the integer range from [0x43BF8000, 0x43C08000] to [-32768, 32768]
* 3) Clamp values outside the [-32768, 32767] range */
union float_bits x;
Uint32 y, z;
x.f32 = src[i] + 384.0f;
Uint32 y = x.u32 - 0x43C00000u;
Uint32 z = 0x7FFFu - (y ^ SIGNMASK(y));
y = x.u32 - 0x43C00000u;
z = 0x7FFFu - (y ^ SIGNMASK(y));
y = y ^ (z & SIGNMASK(z));
dst[i] = (Sint16)(y & 0xFFFF);
@ -310,10 +311,11 @@ static void SDLCALL SDL_Convert_F32_to_S32_Scalar(SDL_AudioCVT *cvt, SDL_AudioFo
* 2) Set values outside the [-2147483648.0, 2147483647.0] range to -2147483648.0
* 3) Convert the float to an integer, and fixup values outside the valid range */
union float_bits x;
Uint32 y, z;
x.f32 = src[i];
Uint32 y = x.u32 + 0x0F800000u;
Uint32 z = y - 0xCF000000u;
y = x.u32 + 0x0F800000u;
z = y - 0xCF000000u;
z &= SIGNMASK(y ^ z);
x.u32 = y - z;