Mesa (master): intel: Refactor the wrapping of textures with renderbuffers

[Chad Versace]

Module: Mesa
Branch: master
Commit: 6ed829fe5063f61f1ab2fcb39a441e17d89e622c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6ed829fe5063f61f1ab2fcb39a441e17d89e622c

Author: Chad Versace <chad at chad-versace.us>
Date:   Mon May 23 13:48:10 2011 -0700

intel: Refactor the wrapping of textures with renderbuffers

Before this commit, the renderbuffer's region was updated in
intel_renderbuffer_texture(). This commit moves the update into
intel_update_wrapper(), which is a more logical location for updates.

This is in preparation for the next commit, which allocates and
updates the texture's hiz region in intel_update_wrapper(). Having the two
region updates located in the same function makes good form.

Reviewed-by: Eric Anholt <eric at anholt.net>
Signed-off-by: Chad Versace <chad at chad-versace.us>

---

 src/mesa/drivers/dri/intel/intel_fbo.c |   15 ++++++++-------
 1 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index 05de2c8..61aba7d 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -420,6 +420,8 @@ static GLboolean
 intel_update_wrapper(struct gl_context *ctx, struct intel_renderbuffer *irb, 
 		     struct gl_texture_image *texImage)
 {
+   struct intel_texture_image *intel_image = intel_texture_image(texImage);
+
    if (!intel_span_supports_format(texImage->TexFormat)) {
       DBG("Render to texture BAD FORMAT %s\n",
 	  _mesa_get_format_name(texImage->TexFormat));
@@ -438,6 +440,12 @@ intel_update_wrapper(struct gl_context *ctx, struct intel_renderbuffer *irb,
    irb->Base.Delete = intel_delete_renderbuffer;
    irb->Base.AllocStorage = intel_nop_alloc_storage;
 
+   /* Point the renderbuffer's region to the texture's region. */
+   if (irb->region != intel_image->mt->region) {
+      intel_region_release(&irb->region);
+      intel_region_reference(&irb->region, intel_image->mt->region);
+   }
+
    return GL_TRUE;
 }
 
@@ -543,13 +551,6 @@ intel_render_texture(struct gl_context * ctx,
        att->Texture->Name, newImage->Width, newImage->Height,
        irb->Base.RefCount);
 
-   /* point the renderbufer's region to the texture image region */
-   if (irb->region != intel_image->mt->region) {
-      if (irb->region)
-	 intel_region_release(&irb->region);
-      intel_region_reference(&irb->region, intel_image->mt->region);
-   }
-
    intel_set_draw_offset_for_image(intel_image, att->Zoffset);
    intel_image->used_as_render_target = GL_TRUE;