_generic_read_RGBA_span_BGRA8888_REV_SSE2: It should adjust the source

and target pointers after do the first 2 pixels. fix bug #15850

diff --git a/src/mesa/x86/read_rgba_span_x86.S b/src/mesa/x86/read_rgba_span_x86.S
index 2e5c3be..80144b8 100644 (file)
--- a/src/mesa/x86/read_rgba_span_x86.S
+++ b/src/mesa/x86/read_rgba_span_x86.S
@@ -434,7 +434,8 @@ _generic_read_RGBA_span_BGRA8888_REV_SSE2:
        je      .L47
 
        movq    (%ebx), %xmm0
-
+       addl    $8, %ebx
+        
        movdqa  %xmm0, %xmm3
        movdqa  %xmm0, %xmm4
        andps   %xmm1, %xmm0
@@ -448,6 +449,7 @@ _generic_read_RGBA_span_BGRA8888_REV_SSE2:
        orps    %xmm3, %xmm0
 
        movq    %xmm0, (%ecx)
+       addl    $8, %ecx        
 .L47:
 
        testl   $1, %edx