shadps4-emu/ext-SDL
1
0
Fork 0
mirror of https://github.com/shadps4-emu/ext-SDL.git synced 2024-11-23 10:09:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Removed the SDL_ALTIVEC_BLIT_FEATURES environment variable.

Browse Source 
This code has long since been tested, and none of the developers have an Altivec CPU.
This commit is contained in:
Sam Lantinga 2024-08-03 11:02:29 -07:00
parent 95adcc522f
commit f370e1a645
1 changed files with 16 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/video/SDL_blit_N.c
View File

@ -36,14 +36,11 @@
/* Functions to blit from N-bit surfaces to other surfaces */
enum blit_features
{
BLIT_FEATURE_NONE = 0,
BLIT_FEATURE_HAS_MMX = 1,
BLIT_FEATURE_HAS_ALTIVEC = 2,
BLIT_FEATURE_ALTIVEC_DONT_USE_PREFETCH = 4,
BLIT_FEATURE_HAS_ARM_SIMD = 8
};
#define BLIT_FEATURE_NONE 0x00
#define BLIT_FEATURE_HAS_MMX 0x01
#define BLIT_FEATURE_HAS_ALTIVEC 0x02
#define BLIT_FEATURE_ALTIVEC_DONT_USE_PREFETCH 0x04
#define BLIT_FEATURE_HAS_ARM_SIMD 0x08
#ifdef SDL_ALTIVEC_BLITTERS
#ifdef SDL_PLATFORM_MACOS
@ -873,26 +870,18 @@ static void ConvertAltivec32to32_prefetch(SDL_BlitInfo *info)
vec_dss(DST_CHAN_DEST);
}
static enum blit_features GetBlitFeatures(void)
static Uint32 GetBlitFeatures(void)
{
static enum blit_features features = -1;
if (features == (enum blit_features) - 1) {
/* Provide an override for testing .. */
const char *override = SDL_getenv("SDL_ALTIVEC_BLIT_FEATURES");
if (override) {
unsigned int features_as_uint = 0;
SDL_sscanf(override, "%u", &features_as_uint);
features = (enum blit_features)features_as_uint;
} else {
features = (0
/* Feature 1 is has-MMX */
| ((SDL_HasMMX()) ? BLIT_FEATURE_HAS_MMX : 0)
/* Feature 2 is has-AltiVec */
| ((SDL_HasAltiVec()) ? BLIT_FEATURE_HAS_ALTIVEC : 0)
/* Feature 4 is dont-use-prefetch */
/* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */
| ((GetL3CacheSize() == 0) ? BLIT_FEATURE_ALTIVEC_DONT_USE_PREFETCH : 0));
}
static Uint32 features = ~0u;
if (features == ~0u) {
features = (0
/* Feature 1 is has-MMX */
| ((SDL_HasMMX()) ? BLIT_FEATURE_HAS_MMX : 0)
/* Feature 2 is has-AltiVec */
| ((SDL_HasAltiVec()) ? BLIT_FEATURE_HAS_ALTIVEC : 0)
/* Feature 4 is dont-use-prefetch */
/* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */
| ((GetL3CacheSize() == 0) ? BLIT_FEATURE_ALTIVEC_DONT_USE_PREFETCH : 0));
}
return features;
}