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loongarch: add SDL_FillSurfaceRect4LSX opt

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yuanhecai
2025-10-30 13:54:20 +08:00
committed by Sam Lantinga
parent 0b1eb4c841
commit dc5b136930
2 changed files with 71 additions and 0 deletions
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2
CMakeLists.txt
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@@ -935,11 +935,13 @@ if(SDL_ASSEMBLY)
set_property(SOURCE
"${SDL3_SOURCE_DIR}/src/video/yuv2rgb/yuv_rgb_lsx.c"
"${SDL3_SOURCE_DIR}/src/video/SDL_blit_A.c"
"${SDL3_SOURCE_DIR}/src/video/SDL_fillrect.c"
APPEND PROPERTY COMPILE_OPTIONS "-mlsx")
set_property(SOURCE
"${SDL3_SOURCE_DIR}/src/video/yuv2rgb/yuv_rgb_lsx.c"
"${SDL3_SOURCE_DIR}/src/video/SDL_blit_A.c"
"${SDL3_SOURCE_DIR}/src/video/SDL_fillrect.c"
PROPERTY SKIP_PRECOMPILE_HEADERS 1)
set(HAVE_LSX TRUE)
endif()

69
src/video/SDL_fillrect.c
View File

@@ -133,6 +133,69 @@ DEFINE_SSE_FILLRECT(4, Uint32)
/* *INDENT-ON* */ // clang-format on
#endif // __SSE__
#ifdef SDL_LSX_INTRINSICS
/* *INDENT-OFF* */ // clang-format off
#define LSX_BEGIN __m128i c128 = __lsx_vreplgr2vr_w(color);
#define LSX_WORK \
for (i = n / 64; i--;) { \
__lsx_vst(c128, p, 0); \
__lsx_vst(c128, p, 16); \
__lsx_vst(c128, p, 32); \
__lsx_vst(c128, p, 48); \
p += 64; \
}
#define DEFINE_LSX_FILLRECT(bpp, type) \
static void SDL_TARGETING("lsx") SDL_FillSurfaceRect##bpp##LSX(Uint8 *pixels, int pitch, Uint32 color, int w, int h) \
{ \
int i, n; \
Uint8 *p = NULL; \
\
/* If the number of bytes per row is equal to the pitch, treat */ \
/* all rows as one long continuous row (for better performance) */ \
if ((w) * (bpp) == pitch) { \
w = w * h; \
h = 1; \
} \
\
LSX_BEGIN; \
\
while (h--) { \
n = (w) * (bpp); \
p = pixels; \
\
if (n > 63) { \
int adjust = 16 - ((uintptr_t)p & 15); \
if (adjust < 16) { \
n -= adjust; \
adjust /= (bpp); \
while (adjust--) { \
*((type *)p) = (type)color; \
p += (bpp); \
} \
} \
LSX_WORK; \
} \
if (n & 63) { \
int remainder = (n & 63); \
remainder /= (bpp); \
while (remainder--) { \
*((type *)p) = (type)color; \
p += (bpp); \
} \
} \
pixels += pitch; \
} \
\
}
DEFINE_LSX_FILLRECT(4, Uint32)
/* *INDENT-ON* */ // clang-format on
#endif /* __LSX__ */
static void SDL_FillSurfaceRect1(Uint8 *pixels, int pitch, Uint32 color, int w, int h)
{
int n;
@@ -339,6 +402,12 @@ bool SDL_FillSurfaceRects(SDL_Surface *dst, const SDL_Rect *rects, int count, Ui
fill_function = SDL_FillSurfaceRect4SSE;
break;
}
#endif
#ifdef SDL_LSX_INTRINSICS
if (SDL_HasLSX()) {
fill_function = SDL_FillSurfaceRect4LSX;
break;
}
#endif
fill_function = SDL_FillSurfaceRect4;
break;