st/nine: Implement new buffer upload path

This new buffer upload path enables to lock
faster than the normal path when using
DISCARD/NOOVERWRITE.

v2: Diverse cleanups and fixes.
v3: Fix allocation size for 'lone' buffers and
add more debug info.
v4: Rewrite of the path to handle when DISCARD/NOOVERWRITE
is not used anymore. The resource content is copied to the
new resource used.
v5: flush for safety after unmap (not sure it is really required
here, but safer to flush).
v6: Do not use the path if persistent coherent mapping is unavailable.
Fix buffer creation flags.
v7: Do not flush since it is not needed.

Signed-off-by: Axel Davy <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/nine/device9.c b/src/gallium/state_trackers/nine/device9.c
index 91c4535a144..9f2575309a5 100644
--- a/src/gallium/state_trackers/nine/device9.c
+++ b/src/gallium/state_trackers/nine/device9.c
@@ -34,6 +34,7 @@
 #include "texture9.h"
 #include "cubetexture9.h"
 #include "volumetexture9.h"
+#include "nine_buffer_upload.h"
 #include "nine_helpers.h"
 #include "nine_pipe.h"
 #include "nine_ff.h"
@@ -282,6 +283,8 @@ NineDevice9_ctor( struct NineDevice9 *This,
     if (This->csmt_active)
         DBG("\033[1;32mCSMT is active\033[0m\n");
 
+    This->buffer_upload = nine_upload_create(This->pipe_secondary, 4 * 1024 * 1024, 4);
+
     /* Initialize a dummy VBO to be used when a vertex declaration does not
      * specify all the inputs needed by vertex shader, on win default behavior
      * is to pass 0,0,0,0 to the shader */
@@ -571,6 +574,9 @@ NineDevice9_dtor( struct NineDevice9 *This )
         FREE(This->swapchains);
     }
 
+    if (This->buffer_upload)
+        nine_upload_destroy(This->buffer_upload);
+
     /* Destroy cso first */
     if (This->context.cso) { cso_destroy_context(This->context.cso); }
     if (This->cso_sw) { cso_destroy_context(This->cso_sw); }