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-rw-r--r--src/gallium/docs/source/context.rst9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst
index 25a3245066c..3faf801b4b1 100644
--- a/src/gallium/docs/source/context.rst
+++ b/src/gallium/docs/source/context.rst
@@ -329,8 +329,15 @@ textured quad blitter.. The source and destination may be the same resource,
but overlapping blits are not permitted.
``resource_resolve`` resolves a multisampled resource into a non-multisampled
-one. Formats and dimensions must match. This function must be present if a driver
+one. Their formats must match. This function must be present if a driver
supports multisampling.
+The region that is to be resolved is described by ``pipe_resolve_info``, which
+provides a source and a destination rectangle.
+The source rectangle may be vertically flipped, but otherwise the dimensions
+of the rectangles must match, unless PIPE_CAP_SCALED_RESOLVE is supported,
+in which case scaling and horizontal flipping are allowed as well.
+The result of resolving depth/stencil values may be any function of the values at
+the sample points, but returning the value of the centermost sample is preferred.
The interfaces to these calls are likely to change to make it easier
for a driver to batch multiple blits with the same source and