[g3dvl] fix of my one bug in SCALE_FACTOR_16_TO_9

diff --git a/src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c b/src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
index 6195eaf..fb420cb 100644 (file)
--- a/src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
+++ b/src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
@@ -42,7 +42,7 @@
 #define MACROBLOCK_HEIGHT 16
 #define BLOCK_WIDTH 8
 #define BLOCK_HEIGHT 8
-#define SCALE_FACTOR_16_TO_9 (32767.0f / 255.0f)
+#define SCALE_FACTOR_16_TO_9 (32768.0f / 256.0f)
 
 struct vertex_shader_consts
 {