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Diffstat (limited to 'meta-oe/recipes-graphics/xorg-lib/pixman-0.20.0/0004-Support-of-overlapping-src-dst-for-pixman_blt_neon.patch')
-rw-r--r--meta-oe/recipes-graphics/xorg-lib/pixman-0.20.0/0004-Support-of-overlapping-src-dst-for-pixman_blt_neon.patch94
1 files changed, 94 insertions, 0 deletions
diff --git a/meta-oe/recipes-graphics/xorg-lib/pixman-0.20.0/0004-Support-of-overlapping-src-dst-for-pixman_blt_neon.patch b/meta-oe/recipes-graphics/xorg-lib/pixman-0.20.0/0004-Support-of-overlapping-src-dst-for-pixman_blt_neon.patch
new file mode 100644
index 0000000000..f6aa9792b8
--- /dev/null
+++ b/meta-oe/recipes-graphics/xorg-lib/pixman-0.20.0/0004-Support-of-overlapping-src-dst-for-pixman_blt_neon.patch
@@ -0,0 +1,94 @@
+From a913cc05a1a1c5a813cf06d248334edede9caab7 Mon Sep 17 00:00:00 2001
+From: Siarhei Siamashka <siarhei.siamashka@nokia.com>
+Date: Wed, 18 Nov 2009 06:08:48 +0200
+Subject: [PATCH 4/8] Support of overlapping src/dst for pixman_blt_neon
+
+---
+ pixman/pixman-arm-neon.c | 62 +++++++++++++++++++++++++++++++++++++--------
+ 1 files changed, 51 insertions(+), 11 deletions(-)
+
+diff --git a/pixman/pixman-arm-neon.c b/pixman/pixman-arm-neon.c
+index be5d403..cbfd7cf 100644
+--- a/pixman/pixman-arm-neon.c
++++ b/pixman/pixman-arm-neon.c
+@@ -176,26 +176,66 @@ pixman_blt_neon (uint32_t *src_bits,
+ int width,
+ int height)
+ {
+- if (src_bpp != dst_bpp)
++ uint8_t * src_bytes;
++ uint8_t * dst_bytes;
++ int bpp;
++
++ if (src_bpp != dst_bpp || src_bpp & 7)
+ return FALSE;
+
++ 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)
++ {
++ pixman_blt_helper (src_bytes, dst_bytes, src_stride, dst_stride,
++ width, height);
++ return TRUE;
++ }
++
++ if (src_bytes < dst_bytes && src_bytes + src_stride * height > dst_bytes)
++ {
++ 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 NEON */
++ while (--height >= 0)
++ {
++ memmove (dst_bytes, src_bytes, width);
++ dst_bytes += dst_stride;
++ src_bytes += src_stride;
++ }
++ return TRUE;
++ }
++ }
++
+ switch (src_bpp)
+ {
+ case 16:
+ pixman_composite_src_0565_0565_asm_neon (
+- width, height,
+- (uint16_t *)(((char *) dst_bits) +
+- dst_y * dst_stride * 4 + dst_x * 2), dst_stride * 2,
+- (uint16_t *)(((char *) src_bits) +
+- src_y * src_stride * 4 + src_x * 2), src_stride * 2);
++ width >> 1,
++ height,
++ (uint16_t *) dst_bytes,
++ dst_stride >> 1,
++ (uint16_t *) src_bytes,
++ src_stride >> 1);
+ return TRUE;
+ case 32:
+ pixman_composite_src_8888_8888_asm_neon (
+- width, height,
+- (uint32_t *)(((char *) dst_bits) +
+- dst_y * dst_stride * 4 + dst_x * 4), dst_stride,
+- (uint32_t *)(((char *) src_bits) +
+- src_y * src_stride * 4 + src_x * 4), src_stride);
++ width >> 2,
++ height,
++ (uint32_t *) dst_bytes,
++ dst_stride >> 2,
++ (uint32_t *) src_bytes,
++ src_stride >> 2);
+ return TRUE;
+ default:
+ return FALSE;
+--
+1.6.6.1
+