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@@ -292,6 +292,7 @@ static void Blit_XRGB8888_RGB565Altivec(SDL_BlitInfo *info)
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}
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}
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+#ifdef BROKEN_ALTIVEC_BLITTERS // This doesn't properly expand to the lower destination bits
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static void Blit_RGB565_32Altivec(SDL_BlitInfo *info)
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{
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int height = info->dst_h;
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@@ -370,9 +371,7 @@ static void Blit_RGB565_32Altivec(SDL_BlitInfo *info)
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while (condition) { \
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unsigned sR, sG, sB; \
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unsigned short Pixel = *((unsigned short *)src); \
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- sR = (Pixel >> 8) & 0xf8; \
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- sG = (Pixel >> 3) & 0xfc; \
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- sB = (Pixel << 3) & 0xf8; \
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+ RGB_FROM_RGB565(Pixel, sR, sG, sB); \
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ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
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src += 2; \
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dst += 4; \
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@@ -508,9 +507,7 @@ static void Blit_RGB555_32Altivec(SDL_BlitInfo *info)
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while (condition) { \
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unsigned sR, sG, sB; \
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unsigned short Pixel = *((unsigned short *)src); \
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- sR = (Pixel >> 7) & 0xf8; \
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- sG = (Pixel >> 2) & 0xf8; \
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- sB = (Pixel << 3) & 0xf8; \
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+ RGB_FROM_RGB555(Pixel, sR, sG, sB); \
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ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
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src += 2; \
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dst += 4; \
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@@ -567,6 +564,7 @@ static void Blit_RGB555_32Altivec(SDL_BlitInfo *info)
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dst += dstskip;
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}
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}
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+#endif // BROKEN_ALTIVEC_BLITTERS
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static void BlitNtoNKey(SDL_BlitInfo *info);
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static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info);
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@@ -2969,11 +2967,13 @@ static const struct blit_table normal_blit_1[] = {
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static const struct blit_table normal_blit_2[] = {
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#ifdef SDL_ALTIVEC_BLITTERS
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+#ifdef BROKEN_ALTIVEC_BLITTERS
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// has-altivec
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{ 0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000,
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BLIT_FEATURE_HAS_ALTIVEC, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
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{ 0x00007C00, 0x000003E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000,
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BLIT_FEATURE_HAS_ALTIVEC, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
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+#endif // BROKEN_ALTIVEC_BLITTERS
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#endif
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#ifdef SDL_SSE4_1_INTRINSICS
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{ 0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00FF0000, 0x0000FF00, 0x000000FF,
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Sam Lantinga