From f1ce37f74aff4854071fe5740b055718b2c0c789 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Tue, 24 Nov 2009 21:13:18 +0000
Subject: svga: cache textures as well as buffers

---
 src/gallium/drivers/svga/svga_screen_cache.h | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

(limited to 'src/gallium/drivers/svga/svga_screen_cache.h')

diff --git a/src/gallium/drivers/svga/svga_screen_cache.h b/src/gallium/drivers/svga/svga_screen_cache.h
index 1bbe987768..b745769848 100644
--- a/src/gallium/drivers/svga/svga_screen_cache.h
+++ b/src/gallium/drivers/svga/svga_screen_cache.h
@@ -36,10 +36,18 @@
 #include "util/u_double_list.h"
 
 
-/* TODO: Reduce this once we don't allocate an index buffer per draw call */ 
+/* Guess the storage size of cached surfaces and try and keep it under
+ * this amount:
+ */ 
+#define SVGA_HOST_SURFACE_CACHE_BYTES 16*1024*1024
+
+/* Maximum number of discrete surfaces in the cache:
+ */
 #define SVGA_HOST_SURFACE_CACHE_SIZE 1024
 
-#define SVGA_HOST_SURFACE_CACHE_BUCKETS 64
+/* Number of hash buckets:
+ */
+#define SVGA_HOST_SURFACE_CACHE_BUCKETS 256
 
 
 struct svga_winsys_surface;
@@ -50,11 +58,12 @@ struct svga_screen;
  */
 struct svga_host_surface_cache_key
 {
-   SVGA3dSurfaceFlags flags;
-   SVGA3dSurfaceFormat format;
    SVGA3dSize size;
-   uint32_t numFaces;
-   uint32_t numMipLevels;
+   uint32_t flags:8;
+   uint32_t format:8;
+   uint32_t numFaces:8;
+   uint32_t numMipLevels:7;
+   uint32_t cachable:1;         /* False if this is a shared surface */
 };
 
 
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