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try to re-enable SSE2 support by default on mingw 64-bit

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This commit is contained in:
Sean Barrett 2015-04-15 02:31:12 -07:00
parent 457679209b
commit d710ada2f9
2 changed files with 12 additions and 5 deletions
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4
README.md
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@ -6,7 +6,7 @@ single-file public domain libraries for C/C++
library | lastest version | category | LoC | description
--------------------- | ---- | -------- | --- | --------------------------------
**stb_vorbis.c** | 1.04 | audio | 5443 | decode ogg vorbis files from file/memory to float/16-bit signed output
**stb_image.h** | 2.03 | graphics | 6426 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC
**stb_image.h** | 2.04 | graphics | 6433 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC
**stb_truetype.h** | 1.04 | graphics | 2631 | parse, decode, and rasterize characters from truetype fonts
**stb_image_write.h** | 0.98 | graphics | 730 | image writing to disk: PNG, TGA, BMP
**stb_image_resize.h** | 0.90 | graphics | 2585 | resize images larger/smaller with good quality
@ -25,7 +25,7 @@ library | lastest version | category | LoC | description
**stb_leakcheck.h** | 0.2 | misc | 117 | quick-and-dirty malloc/free leak-checking
Total libraries: 18
Total lines of C code: 45235
Total lines of C code: 45242
FAQ

13
stb_image.h
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@ -1,4 +1,4 @@
/* stb_image - v2.03 - public domain image loader - http://nothings.org/stb_image.h
/* stb_image - v2.04 - public domain image loader - http://nothings.org/stb_image.h
no warranty implied; use at your own risk
Do this:
@ -143,6 +143,7 @@
Latest revision history:
2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit
2.03 (2015-04-12) additional corruption checking
stbi_set_flip_vertically_on_load
fix NEON support; fix mingw support
@ -633,11 +634,14 @@ typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
#endif
// x86/x64 detection
#if defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86)
#if defined(__x86_64__) || defined(_M_X64)
#define STBI__X64_TARGET
#elif defined(__i386) || defined(_M_IX86)
#define STBI__X86_TARGET
#endif
#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD)
#if defined(__GNUC__) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) && !defined(__SSE2__) && !defined(STBI_NO_SIMD)
// NOTE: not clear do we actually need this for the 64-bit path?
// gcc doesn't support sse2 intrinsics unless you compile with -msse2,
// (but compiling with -msse2 allows the compiler to use SSE2 everywhere;
// this is just broken and gcc are jerks for not fixing it properly
@ -646,6 +650,8 @@ typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
#endif
#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD)
// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET
//
// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the
// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant.
// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not
@ -6287,6 +6293,7 @@ STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int
/*
revision history:
2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit
2.03 (2015-04-12) extra corruption checking (mmozeiko)
stbi_set_flip_vertically_on_load (nguillemot)
fix NEON support; fix mingw support