r6xx/r7xx: add sw blit for tex upload

Can be used for buffer swap as well.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r600/r600_cmdbuf.c b/src/mesa/drivers/dri/r600/r600_cmdbuf.c
index 4609e86bb9..9f26b257d0 100644
--- a/src/mesa/drivers/dri/r600/r600_cmdbuf.c
+++ b/src/mesa/drivers/dri/r600/r600_cmdbuf.c
@@ -645,3 +645,20 @@ void r600InitCmdBuf(context_t *r600) /* from rcommonInitCmdBuf */
 		}
 	}
 }
+
+void r600_sw_blit(char *srcp, int src_pitch, char *dstp, int dst_pitch,
+		  int x, int y, int w, int h, int cpp)
+{
+	char *src = srcp;
+	char *dst = dstp;
+
+	src += (y * src_pitch) + (x * cpp);
+	dst += (y * dst_pitch) + (x * cpp);
+
+	while (h--) {
+		memcpy(dst, src, w * cpp);
+		src += src_pitch;
+		dst += dst_pitch;
+	}
+}
+