diff options
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_surface.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/gallium/drivers/softpipe/sp_surface.c b/src/gallium/drivers/softpipe/sp_surface.c index 29a1e92416e..acedebfcc58 100644 --- a/src/gallium/drivers/softpipe/sp_surface.c +++ b/src/gallium/drivers/softpipe/sp_surface.c @@ -35,7 +35,11 @@ -/* Assumes all values are within bounds -- no checking at this level - +/** + * Copy a rectangular region from one surface to another. + * Surfaces must have same bpp. + * + * Assumes all values are within bounds -- no checking at this level - * do it higher up if required. */ static void @@ -54,9 +58,11 @@ sp_surface_copy(struct pipe_context *pipe, src, PIPE_BUFFER_USAGE_CPU_READ ); - assert( dst->cpp == src->cpp ); - assert(src_map && dst_map); + assert(dst->cpp == src->cpp); + assert(src_map); + assert(dst_map); + /* If do_flip, invert src_y position and pass negative src stride */ pipe_copy_rect(dst_map, dst->cpp, dst->pitch, @@ -64,7 +70,7 @@ sp_surface_copy(struct pipe_context *pipe, width, height, src_map, do_flip ? -(int) src->pitch : src->pitch, - srcx, do_flip ? 1 - srcy - height : srcy); + srcx, do_flip ? src->height - 1 - srcy : srcy); pipe->screen->surface_unmap(pipe->screen, src); pipe->screen->surface_unmap(pipe->screen, dst); |