X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fvideo%2FSDL_blit_A.c;h=d5000b2f5b5881b0f3853714159238c579506858;hb=c85a5291401806f48c6d5b762870dde73395be5a;hp=4ecb5215e84e31d9176ae01cb2c76f1850ed6d2e;hpb=e14743d15a38081776e29fcc16d2de7e61e3d2b6;p=sdl_omap.git

diff --git a/src/video/SDL_blit_A.c b/src/video/SDL_blit_A.c
index 4ecb521..d5000b2 100644
--- a/src/video/SDL_blit_A.c
+++ b/src/video/SDL_blit_A.c
@@ -61,6 +61,53 @@
 
 /* Functions to perform alpha blended blitting */
 
+#ifdef __ARM_NEON__
+
+/* NEON optimized blitter callers */
+#define make_neon_caller(name, neon_name) \
+extern void neon_name(void *dst, const void *src, int count); \
+static void name(SDL_BlitInfo *info) \
+{ \
+	int width = info->d_width; \
+	int height = info->d_height; \
+	Uint8 *src = info->s_pixels; \
+	Uint8 *dst = info->d_pixels; \
+	int srcskip = info->s_skip; \
+	int dstskip = info->d_skip; \
+\
+	while ( height-- ) { \
+            neon_name(dst, src, width); \
+	    src += width * 4 + srcskip; \
+	    dst += width * 4 + dstskip; \
+	} \
+}
+
+#define make_neon_callerS(name, neon_name) \
+extern void neon_name(void *dst, const void *src, int count, unsigned int alpha); \
+static void name(SDL_BlitInfo *info) \
+{ \
+	int width = info->d_width; \
+	int height = info->d_height; \
+	Uint8 *src = info->s_pixels; \
+	Uint8 *dst = info->d_pixels; \
+	int srcskip = info->s_skip; \
+	int dstskip = info->d_skip; \
+	unsigned alpha = info->src->alpha;\
+\
+	while ( height-- ) { \
+	    neon_name(dst, src, width, alpha); \
+	    src += width * 4 + srcskip; \
+	    dst += width * 4 + dstskip; \
+	} \
+}
+
+make_neon_caller(BlitABGRtoXRGBalpha_neon, neon_ABGRtoXRGBalpha)
+make_neon_caller(BlitARGBtoXRGBalpha_neon, neon_ARGBtoXRGBalpha)
+make_neon_callerS(BlitABGRtoXRGBalphaS_neon, neon_ABGRtoXRGBalphaS)
+make_neon_callerS(BlitARGBtoXRGBalphaS_neon, neon_ARGBtoXRGBalphaS)
+
+#endif /* __ARM_NEON__ */
+
 /* N->1 blending with per-surface alpha */
 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info)
 {
@@ -2641,6 +2688,34 @@ static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info)
 	unsigned sA = srcfmt->alpha;
 	unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
 
+	if (srcbpp == 2 && srcfmt->Gmask == 0x7e0 && dstbpp == 2 && dstfmt->Gmask == 0x7e0) {
+	    Uint16 *src16 = (Uint16 *)src;
+	    Uint16 *dst16 = (Uint16 *)dst;
+	    sA >>= 3;	/* downscale alpha to 5 bits */
+	    while ( height-- ) {
+		DUFFS_LOOP4(
+		{
+		    Uint32 s;
+		    Uint32 d;
+		    s = *src16;
+		    if(sA && s != ckey) {
+			d = *dst16;
+			s = (s | s << 16) & 0x07e0f81f;
+			d = (d | d << 16) & 0x07e0f81f;
+			d += (s - d) * sA >> 5;
+			d &= 0x07e0f81f;
+			*dst16 = (Uint16)(d | d >> 16);
+		    }
+		    src16++;
+		    dst16++;
+		},
+		width);
+		src16 += srcskip / 2;
+		dst16 += dstskip / 2;
+	    }
+	    return;
+	}
+
 	while ( height-- ) {
 	    DUFFS_LOOP4(
 	    {
@@ -2777,6 +2852,14 @@ SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
 			   && sf->Bshift % 8 == 0
 			   && SDL_HasMMX())
 			    return BlitRGBtoRGBSurfaceAlphaMMX;
+#endif
+#ifdef __ARM_NEON__
+			if(sf->Rshift % 8 == 0
+			   && sf->Gshift % 8 == 0
+			   && sf->Bshift % 8 == 0)
+			{
+				return BlitARGBtoXRGBalphaS_neon;
+			}
 #endif
 			if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff)
 			{
@@ -2788,6 +2871,13 @@ SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
 				return BlitRGBtoRGBSurfaceAlpha;
 			}
 		}
+#ifdef __ARM_NEON__
+		if (sf->Gmask == df->Gmask && sf->Rmask == df->Bmask && sf->Bmask == df->Rmask
+		    && sf->Rshift % 8 == 0 && sf->Gshift % 8 == 0 && sf->Bshift % 8 == 0)
+		{
+			return BlitABGRtoXRGBalphaS_neon;
+		}
+#endif
 #if SDL_ALTIVEC_BLITTERS
 		if((sf->BytesPerPixel == 4) &&
 		   !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
@@ -2844,6 +2934,15 @@ SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
 			if(SDL_HasMMX())
 				return BlitRGBtoRGBPixelAlphaMMX;
 		}
+#endif
+#ifdef __ARM_NEON__
+		if(sf->Rshift % 8 == 0
+		   && sf->Gshift % 8 == 0
+		   && sf->Bshift % 8 == 0
+		   && sf->Ashift % 8 == 0)
+		{
+			return BlitARGBtoXRGBalpha_neon;
+		}
 #endif
 		if(sf->Amask == 0xff000000)
 		{
@@ -2855,6 +2954,14 @@ SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
 			return BlitRGBtoRGBPixelAlpha;
 		}
 	    }
+#ifdef __ARM_NEON__
+	    if (sf->Gmask == df->Gmask && sf->Rmask == df->Bmask && sf->Bmask == df->Rmask
+		&& sf->Rshift % 8 == 0 && sf->Gshift % 8 == 0 && sf->Bshift % 8 == 0
+		&& sf->Amask == 0xff000000)
+	    {
+		return BlitABGRtoXRGBalpha_neon;
+	    }
+#endif
 #if SDL_ALTIVEC_BLITTERS
 	    if (sf->Amask && sf->BytesPerPixel == 4 &&
 	        !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())