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ToastconcernandClaude Opus 5.5
f7345a5ac3
Frame Studio now builds for Windows (x64, x86, ARM64), Linux (x64, x86, ARM64)
and macOS (Apple Silicon, Intel):
- studio/platform.h with Win32 and POSIX implementations (dialogs through
tinyfiledialogs on Linux/macOS), a GLFW window beside the Win32 one, and a
platform-neutral frame pacer
- MoltenVK support in the renderer (portability enumeration) and bundled in
the macOS app
- 32-bit builds: large-address-aware, LZMA packing within a 32-bit address space
- unaligned file reads in the loaders go through loadUnaligned (no UB)
- scripts/build-studio.sh, studio/build_windows.bat [x64|x86|arm64],
cmake/llvm-mingw.cmake, and a GitHub Actions workflow building every target
Frame Home installs without Studio: frame/install-frame-home.{sh,ps1} and
"Install Frame Home.bat" (packaged as FrameHome-installer.zip).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
57 lines
1.0 KiB
C
57 lines
1.0 KiB
C
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#ifndef COMMON_H
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#define COMMON_H
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "opus_defines.h"
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#define LOG256 5.5451774445f
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static OPUS_INLINE float log2_approx(float x)
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{
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int integer;
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float frac;
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union {
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float f;
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int i;
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} in;
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in.f = x;
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integer = (in.i>>23)-127;
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in.i -= integer<<23;
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frac = in.f - 1.5f;
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frac = -0.41445418f + frac*(0.95909232f
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+ frac*(-0.33951290f + frac*0.16541097f));
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return 1+integer+frac;
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}
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#define log_approx(x) (0.69315f*log2_approx(x))
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static OPUS_INLINE float ulaw2lin(float u)
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{
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float s;
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float scale_1 = 32768.f/255.f;
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u = u - 128.f;
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s = u >= 0.f ? 1.f : -1.f;
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u = fabs(u);
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return s*scale_1*(exp(u/128.*LOG256)-1);
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}
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static OPUS_INLINE int lin2ulaw(float x)
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{
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float u;
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float scale = 255.f/32768.f;
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int s = x >= 0 ? 1 : -1;
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x = fabs(x);
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u = (s*(128*log_approx(1+scale*x)/LOG256));
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u = 128 + u;
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if (u < 0) u = 0;
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if (u > 255) u = 255;
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return (int)floor(.5 + u);
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}
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#endif
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