diff options
Diffstat (limited to 'recipes/xorg-lib/pixman-0.18.2/0003-Support-of-overlapping-src-dst-for-pixman_blt_sse2.patch')
| -rw-r--r-- | recipes/xorg-lib/pixman-0.18.2/0003-Support-of-overlapping-src-dst-for-pixman_blt_sse2.patch | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/recipes/xorg-lib/pixman-0.18.2/0003-Support-of-overlapping-src-dst-for-pixman_blt_sse2.patch b/recipes/xorg-lib/pixman-0.18.2/0003-Support-of-overlapping-src-dst-for-pixman_blt_sse2.patch new file mode 100644 index 0000000000..faeb6e67ab --- /dev/null +++ b/recipes/xorg-lib/pixman-0.18.2/0003-Support-of-overlapping-src-dst-for-pixman_blt_sse2.patch @@ -0,0 +1,91 @@ +From 56c446d6912936eabcc6bdd583f37ee1209eff8c Mon Sep 17 00:00:00 2001 +From: Siarhei Siamashka <siarhei.siamashka@nokia.com> +Date: Thu, 22 Oct 2009 05:45:54 +0300 +Subject: [PATCH 3/7] Support of overlapping src/dst for pixman_blt_sse2 + +--- + pixman/pixman-sse2.c | 55 +++++++++++++++++++++++++++++-------------------- + 1 files changed, 32 insertions(+), 23 deletions(-) + +diff --git a/pixman/pixman-sse2.c b/pixman/pixman-sse2.c +index d5349d7..aa34012 100644 +--- a/pixman/pixman-sse2.c ++++ b/pixman/pixman-sse2.c +@@ -5328,34 +5328,43 @@ pixman_blt_sse2 (uint32_t *src_bits, + { + uint8_t * src_bytes; + uint8_t * dst_bytes; +- int byte_width; ++ int bpp; + +- if (src_bpp != dst_bpp) ++ if (src_bpp != dst_bpp || src_bpp & 7) + return FALSE; + +- if (src_bpp == 16) +- { +- src_stride = src_stride * (int) sizeof (uint32_t) / 2; +- dst_stride = dst_stride * (int) sizeof (uint32_t) / 2; +- src_bytes =(uint8_t *)(((uint16_t *)src_bits) + src_stride * (src_y) + (src_x)); +- dst_bytes = (uint8_t *)(((uint16_t *)dst_bits) + dst_stride * (dst_y) + (dst_x)); +- byte_width = 2 * width; +- src_stride *= 2; +- dst_stride *= 2; +- } +- else if (src_bpp == 32) ++ bpp = src_bpp >> 3; ++ width *= bpp; ++ src_stride *= 4; ++ dst_stride *= 4; ++ src_bytes = (uint8_t *)src_bits + src_y * src_stride + src_x * bpp; ++ dst_bytes = (uint8_t *)dst_bits + dst_y * dst_stride + dst_x * bpp; ++ ++ if (src_bpp != 16 && src_bpp != 32) + { +- src_stride = src_stride * (int) sizeof (uint32_t) / 4; +- dst_stride = dst_stride * (int) sizeof (uint32_t) / 4; +- src_bytes = (uint8_t *)(((uint32_t *)src_bits) + src_stride * (src_y) + (src_x)); +- dst_bytes = (uint8_t *)(((uint32_t *)dst_bits) + dst_stride * (dst_y) + (dst_x)); +- byte_width = 4 * width; +- src_stride *= 4; +- dst_stride *= 4; ++ pixman_blt_helper (src_bytes, dst_bytes, src_stride, dst_stride, ++ width, height); ++ return TRUE; + } +- else ++ ++ if (src_bytes < dst_bytes && src_bytes + src_stride * height > dst_bytes) + { +- return FALSE; ++ src_bytes += src_stride * height - src_stride; ++ dst_bytes += dst_stride * height - dst_stride; ++ dst_stride = -dst_stride; ++ src_stride = -src_stride; ++ ++ if (src_bytes + width > dst_bytes) ++ { ++ /* TODO: reverse scanline copy using SSE2 */ ++ while (--height >= 0) ++ { ++ memmove (dst_bytes, src_bytes, width); ++ dst_bytes += dst_stride; ++ src_bytes += src_stride; ++ } ++ return TRUE; ++ } + } + + cache_prefetch ((__m128i*)src_bytes); +@@ -5368,7 +5377,7 @@ pixman_blt_sse2 (uint32_t *src_bits, + uint8_t *d = dst_bytes; + src_bytes += src_stride; + dst_bytes += dst_stride; +- w = byte_width; ++ w = width; + + cache_prefetch_next ((__m128i*)s); + cache_prefetch_next ((__m128i*)d); +-- +1.6.6.1 + |