added st_sizeof_format()

diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 4aa5066..a89dfb1 100644 (file)
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -99,6 +99,15 @@ st_get_format_info(GLuint format)
 
 
 GLuint
+st_sizeof_format(GLuint pipeFormat)
+{
+   const struct pipe_format_info *info = st_get_format_info(pipeFormat);
+   assert(info);
+   return info->size;
+}
+
+
+GLuint
 st_mesa_format_to_pipe_format(GLuint mesaFormat)
 {
    switch (mesaFormat) {

diff --git a/src/mesa/state_tracker/st_format.h b/src/mesa/state_tracker/st_format.h
index dde4731..6b3cba0 100644 (file)
--- a/src/mesa/state_tracker/st_format.h
+++ b/src/mesa/state_tracker/st_format.h
@@ -51,6 +51,10 @@ st_get_format_info(GLuint format);
 
 
 extern GLuint
+st_sizeof_format(GLuint pipeFormat);
+
+
+extern GLuint
 st_mesa_format_to_pipe_format(GLuint mesaFormat);