Mesa (master): intel: Refactor intel_downsample_for_dri2_flush

[Chad Versace]

Module: Mesa
Branch: master
Commit: 38b748ce29a6415558bbe4886589134e3db047c8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=38b748ce29a6415558bbe4886589134e3db047c8

Author: Chad Versace <chad.versace at linux.intel.com>
Date:   Thu Aug  9 09:15:36 2012 -0700

intel: Refactor intel_downsample_for_dri2_flush

Move it from intel_screen.c to intel_context.c. Redeclare as non-static.
A future commit will use it in multiple files.

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

---

 src/mesa/drivers/dri/intel/intel_context.c |   30 ++++++++++++++++++++++++++++
 src/mesa/drivers/dri/intel/intel_context.h |    4 +++
 src/mesa/drivers/dri/intel/intel_screen.c  |   30 ----------------------------
 3 files changed, 34 insertions(+), 30 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index a39462b..c37d89d 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -241,6 +241,36 @@ intelGetString(struct gl_context * ctx, GLenum name)
    }
 }
 
+void
+intel_downsample_for_dri2_flush(struct intel_context *intel,
+                                __DRIdrawable *drawable)
+{
+   if (intel->gen < 6) {
+      /* MSAA is not supported, so don't waste time checking for
+       * a multisample buffer.
+       */
+      return;
+   }
+
+   struct gl_framebuffer *fb = drawable->driverPrivate;
+   struct intel_renderbuffer *rb;
+
+   /* Usually, only the back buffer will need to be downsampled. However,
+    * the front buffer will also need it if the user has rendered into it.
+    */
+   static const gl_buffer_index buffers[2] = {
+         BUFFER_BACK_LEFT,
+         BUFFER_FRONT_LEFT,
+   };
+
+   for (int i = 0; i < 2; ++i) {
+      rb = intel_get_renderbuffer(fb, buffers[i]);
+      if (rb == NULL || rb->mt == NULL)
+         continue;
+      intel_miptree_downsample(intel, rb->mt);
+   }
+}
+
 static void
 intel_flush_front(struct gl_context *ctx)
 {
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index 063cc34..5075601 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -577,6 +577,10 @@ void intel_update_renderbuffers(__DRIcontext *context,
 				__DRIdrawable *drawable);
 void intel_prepare_render(struct intel_context *intel);
 
+void
+intel_downsample_for_dri2_flush(struct intel_context *intel,
+                                __DRIdrawable *drawable);
+
 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 				  uint32_t buffer_id);
 void intel_init_texture_formats(struct gl_context *ctx);
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 034499b..f4c1602 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -163,36 +163,6 @@ static const __DRItexBufferExtension intelTexBufferExtension = {
 };
 
 static void
-intel_downsample_for_dri2_flush(struct intel_context *intel,
-                                __DRIdrawable *drawable)
-{
-   if (intel->gen < 6) {
-      /* MSAA is not supported, so don't waste time checking for
-       * a multisample buffer.
-       */
-      return;
-   }
-
-   struct gl_framebuffer *fb = drawable->driverPrivate;
-   struct intel_renderbuffer *rb;
-
-   /* Usually, only the back buffer will need to be downsampled. However,
-    * the front buffer will also need it if the user has rendered into it.
-    */
-   static const gl_buffer_index buffers[2] = {
-         BUFFER_BACK_LEFT,
-         BUFFER_FRONT_LEFT,
-   };
-
-   for (int i = 0; i < 2; ++i) {
-      rb = intel_get_renderbuffer(fb, buffers[i]);
-      if (rb == NULL || rb->mt == NULL)
-         continue;
-      intel_miptree_downsample(intel, rb->mt);
-   }
-}
-
-static void
 intelDRI2Flush(__DRIdrawable *drawable)
 {
    GET_CURRENT_CONTEXT(ctx);