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authorChad Versace <[email protected]>2011-11-15 10:05:21 -0800
committerChad Versace <[email protected]>2011-11-22 10:35:42 -0800
commit24da7335b22432ef4c2d57cab86e4b8fbe8733d5 (patch)
tree53c78dc3c3a13131277f299dc678bf10f1322cee /src/mesa/drivers/dri/intel/intel_fbo.h
parentd7b33309fe160212f2eb73f471f3aedcb5d0b5c1 (diff)
intel: Track the miptree layer wrapped by a renderbuffer [v2]
TODO: Make v2 for kwg. Add two fields to intel_renderbuffer: mt_level mt_layer Multiple renderbuffers may simultaneously wrap a single texture and each provide a different view into that texture. [Consider glFramebufferTextureLayer()]. The new fields indicate which slice of the miptree is wrapped by the renderbuffer. The buffer resolve operations, to be introduced in the future, require these fields in order to resolve the correct slice in the miptree. To add the fields, it was necessary to replace the type of some function parameters from gl_texture_image to gl_renderbuffer_attachment. v2: [kwg] Replace confusing condition `CubeMapFace > 0` with the more sensible `Target == GL_TEXTURE_CUBE_MAP`. Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Signed-off-by: Chad Versace <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_fbo.h')
-rw-r--r--src/mesa/drivers/dri/intel/intel_fbo.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.h b/src/mesa/drivers/dri/intel/intel_fbo.h
index 34d2f9a61cf..3a213745e38 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.h
+++ b/src/mesa/drivers/dri/intel/intel_fbo.h
@@ -52,6 +52,23 @@ struct intel_renderbuffer
GLbitfield map_mode;
/**
+ * \name Miptree view
+ * \{
+ *
+ * Multiple renderbuffers may simultaneously wrap a single texture and each
+ * provide a different view into that texture. The fields below indicate
+ * which miptree slice is wrapped by this renderbuffer. The fields' values
+ * are consistent with the 'level' and 'layer' parameters of
+ * glFramebufferTextureLayer().
+ *
+ * For renderbuffers not created with glFramebufferTexture*(), mt_level and
+ * mt_layer are 0.
+ */
+ unsigned int mt_level;
+ unsigned int mt_layer;
+ /** \} */
+
+ /**
* \name Packed depth/stencil unwrappers
*
* If the intel_context is using separate stencil and this renderbuffer has