comments, clean-ups, consts

2 files changed, 22 insertions, 16 deletions

diff --git a/src/mesa/state_tracker/st_texture.c b/src/mesa/state_tracker/st_texture.c
index 15cc458be8..741f36c2a7 100644
--- a/src/mesa/state_tracker/st_texture.c
+++ b/src/mesa/state_tracker/st_texture.c
@@ -59,6 +59,10 @@ target_to_target(GLenum target)
 }
 #endif
 
+
+/**
+ * Allocate a new pipe_texture object
+ */
 struct pipe_texture *
 st_texture_create(struct st_context *st,
                   enum pipe_texture_target target,
@@ -100,17 +104,16 @@ st_texture_create(struct st_context *st,
 }
 
 
-
-
-/* Can the image be pulled into a unified mipmap texture.  This mirrors
- * the completeness test in a lot of ways.
+/**
+ * Check if a texture image be pulled into a unified mipmap texture.
+ * This mirrors the completeness test in a lot of ways.
  *
  * Not sure whether I want to pass gl_texture_image here.
  */
 GLboolean
-st_texture_match_image(struct pipe_texture *pt,
-                          struct gl_texture_image *image,
-                          GLuint face, GLuint level)
+st_texture_match_image(const struct pipe_texture *pt,
+                       const struct gl_texture_image *image,
+                       GLuint face, GLuint level)
 {
    /* Images with borders are never pulled into mipmap textures. 
     */
@@ -189,6 +192,7 @@ st_texture_image_map(struct st_context *st, struct st_texture_image *stImage,
    return pipe_surface_map(stImage->surface);
 }
 
+
 void
 st_texture_image_unmap(struct st_texture_image *stImage)
 {
@@ -201,7 +205,8 @@ st_texture_image_unmap(struct st_texture_image *stImage)
 
 
 
-/* Upload data to a rectangular sub-region.  Lots of choices how to do this:
+/**
+ * Upload data to a rectangular sub-region.  Lots of choices how to do this:
  *
  * - memcpy by span to current destination
  * - upload data as new buffer and blit
@@ -261,13 +266,14 @@ st_texture_image_data(struct pipe_context *pipe,
    }
 }
 
+
 /* Copy mipmap image between textures
  */
 void
 st_texture_image_copy(struct pipe_context *pipe,
-                         struct pipe_texture *dst,
-                         GLuint face, GLuint level,
-                         struct pipe_texture *src)
+                      struct pipe_texture *dst,
+                      GLuint face, GLuint level,
+                      struct pipe_texture *src)
 {
    GLuint width = src->width[level];
    GLuint height = src->height[level];
@@ -278,6 +284,7 @@ st_texture_image_copy(struct pipe_context *pipe,
 
    if (dst->compressed)
       height /= 4;
+
    for (i = 0; i < depth; i++) {
       dst_surface = pipe->get_tex_surface(pipe, dst, face, level, i);
       src_surface = pipe->get_tex_surface(pipe, src, face, level, i);
@@ -292,5 +299,4 @@ st_texture_image_copy(struct pipe_context *pipe,
       pipe_surface_reference(&dst_surface, NULL);
       pipe_surface_reference(&src_surface, NULL);
    }
-
 }
diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
index d8b1bcad9d..0b87a494c3 100644
--- a/src/mesa/state_tracker/st_texture.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -47,11 +47,11 @@ st_texture_create(struct st_context *st,
                   GLuint compress_byte);
 
 
-/* Check if an image fits an existing texture
+/* Check if an image fits into an existing texture object.
  */
 extern GLboolean
-st_texture_match_image(struct pipe_texture *pt,
-                       struct gl_texture_image *image,
+st_texture_match_image(const struct pipe_texture *pt,
+                       const struct gl_texture_image *image,
                        GLuint face, GLuint level);
 
 /* Return a pointer to an image within a texture.  Return image stride as
@@ -73,7 +73,7 @@ extern const GLuint *
 st_texture_depth_offsets(struct pipe_texture *pt, GLuint level);
 
 
-/* Return the linear offset of an image relative to the start of its region:
+/* Return the linear offset of an image relative to the start of its region.
  */
 extern GLuint
 st_texture_image_offset(const struct pipe_texture *pt,