[Mesa-dev] [PATCH 07/16] intel: Add function for marking needed downsample

[Chad Versace]

Add function intel_renderbuffer_set_needs_downsample. It is a no-op
except on multisample winsys buffers shared with DRI2.

Reviewed-by: Paul Berry <stereotype441 at gmail.com>
Signed-off-by: Chad Versace <chad.versace at linux.intel.com>
---
 src/mesa/drivers/dri/intel/intel_fbo.c | 10 ++++++++++
 src/mesa/drivers/dri/intel/intel_fbo.h |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index e6e6408..3a610c2 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -881,6 +881,16 @@ intel_blit_framebuffer(struct gl_context *ctx,
                               mask, filter);
 }
 
+/**
+ * This is a no-op except on multisample buffers shared with DRI2.
+ */
+void
+intel_renderbuffer_set_needs_downsample(struct intel_renderbuffer *irb)
+{
+   if (irb->mt && irb->mt->singlesample_mt)
+      irb->mt->need_downsample = true;
+}
+
 void
 intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer *irb)
 {
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.h b/src/mesa/drivers/dri/intel/intel_fbo.h
index 72ed04d..6574f0f 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.h
+++ b/src/mesa/drivers/dri/intel/intel_fbo.h
@@ -170,6 +170,9 @@ struct intel_region*
 intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex);
 
 void
+intel_renderbuffer_set_needs_downsample(struct intel_renderbuffer *irb);
+
+void
 intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer *irb);
 
 void
-- 
1.7.11.4