softpipe: increase max texture size to 16K

6 files changed, 73 insertions, 23 deletions

diff --git a/src/gallium/drivers/softpipe/sp_limits.h b/src/gallium/drivers/softpipe/sp_limits.h
new file mode 100644
index 00000000000..a7a24c98d57
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_limits.h
@@ -0,0 +1,42 @@
+/**************************************************************************
+ * 
+ * Copyright 2010 VMware, Inc.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef SP_LIMITS_H
+#define SP_LIMITS_H
+
+
+
+#define SP_MAX_TEXTURE_2D_LEVELS 15  /* 16K x 16K */
+#define SP_MAX_TEXTURE_3D_LEVELS 9   /* 512 x 512 x 512 */
+
+
+/** Max surface size */
+#define MAX_WIDTH (1 << (SP_MAX_TEXTURE_2D_LEVELS - 1))
+#define MAX_HEIGHT (1 << (SP_MAX_TEXTURE_2D_LEVELS - 1))
+
+
+#endif /* SP_LIMITS_H */
diff --git a/src/gallium/drivers/softpipe/sp_tex_tile_cache.c b/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
index 7c97539fc0d..1393164150e 100644
--- a/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
@@ -48,6 +48,9 @@ sp_create_tex_tile_cache( struct pipe_context *pipe )
    struct softpipe_tex_tile_cache *tc;
    uint pos;
 
+   /* make sure max texture size works */
+   assert((TILE_SIZE << TEX_ADDR_BITS) >= (1 << (SP_MAX_TEXTURE_2D_LEVELS-1)));
+
    tc = CALLOC_STRUCT( softpipe_tex_tile_cache );
    if (tc) {
       tc->pipe = pipe;
diff --git a/src/gallium/drivers/softpipe/sp_tex_tile_cache.h b/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
index c2f2a2a2de5..e0b66bf3f7c 100644
--- a/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
+++ b/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
@@ -30,6 +30,7 @@
 
 
 #include "pipe/p_compiler.h"
+#include "sp_limits.h"
 
 
 struct softpipe_context;
@@ -39,23 +40,26 @@ struct softpipe_tex_tile_cache;
 /**
  * Cache tile size (width and height). This needs to be a power of two.
  */
-#define TILE_SIZE 64
+#define TILE_SIZE_LOG2 6
+#define TILE_SIZE (1 << TILE_SIZE_LOG2)
 
 
-/* If we need to support > 4096, just expand this to be a 64 bit
- * union, or consider tiling in Z as well.
- * XXX or unify z/face?
+#define TEX_ADDR_BITS (SP_MAX_TEXTURE_2D_LEVELS - 1 - TILE_SIZE_LOG2)
+#define TEX_Z_BITS (SP_MAX_TEXTURE_2D_LEVELS - 1)
+
+/**
+ * Texture tile address as a union for fast compares.
  */
 union tex_tile_address {
    struct {
-      unsigned x:6;             /* 4096 / TILE_SIZE */
-      unsigned y:6;             /* 4096 / TILE_SIZE */
-      unsigned z:12;            /* 4096 -- z not tiled */
+      unsigned x:TEX_ADDR_BITS;  /* 16K / TILE_SIZE */
+      unsigned y:TEX_ADDR_BITS;  /* 16K / TILE_SIZE */
+      unsigned z:TEX_Z_BITS;     /* 16K -- z not tiled */
       unsigned face:3;
       unsigned level:4;
       unsigned invalid:1;
    } bits;
-   unsigned value;
+   uint64_t value;
 };
 
 
diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h
index 6b205dc5329..5603110eeb3 100644
--- a/src/gallium/drivers/softpipe/sp_texture.h
+++ b/src/gallium/drivers/softpipe/sp_texture.h
@@ -30,10 +30,7 @@
 
 
 #include "pipe/p_state.h"
-
-
-#define SP_MAX_TEXTURE_2D_LEVELS 13  /* 4K x 4K */
-#define SP_MAX_TEXTURE_3D_LEVELS 9   /* 512 x 512 x 512 */
+#include "sp_limits.h"
 
 
 struct pipe_context;
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c
index 4442baf0b24..480860af63b 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.c
@@ -92,6 +92,10 @@ sp_create_tile_cache( struct pipe_context *pipe )
    maxTexSize = 1 << (maxLevels - 1);
    assert(MAX_WIDTH >= maxTexSize);
 
+   assert(sizeof(union tile_address) == 4);
+
+   assert((TILE_SIZE << TILE_ADDR_BITS) >= MAX_WIDTH);
+
    tc = CALLOC_STRUCT( softpipe_tile_cache );
    if (tc) {
       tc->pipe = pipe;
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.h b/src/gallium/drivers/softpipe/sp_tile_cache.h
index 4151a47c323..68140b1d2f9 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.h
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.h
@@ -30,6 +30,7 @@
 
 
 #include "pipe/p_compiler.h"
+#include "sp_texture.h"
 
 
 struct softpipe_tile_cache;
@@ -38,18 +39,22 @@ struct softpipe_tile_cache;
 /**
  * Cache tile size (width and height). This needs to be a power of two.
  */
-#define TILE_SIZE 64
+#define TILE_SIZE_LOG2 6
+#define TILE_SIZE (1 << TILE_SIZE_LOG2)
 
 
-/* If we need to support > 4096, just expand this to be a 64 bit
- * union, or consider tiling in Z as well.
+#define TILE_ADDR_BITS (SP_MAX_TEXTURE_2D_LEVELS - 1 - TILE_SIZE_LOG2)
+
+
+/**
+ * Surface tile address as a union for fast compares.
  */
 union tile_address {
    struct {
-      unsigned x:6;             /* 4096 / TILE_SIZE */
-      unsigned y:6;             /* 4096 / TILE_SIZE */
+      unsigned x:TILE_ADDR_BITS;     /* 16K / TILE_SIZE */
+      unsigned y:TILE_ADDR_BITS;     /* 16K / TILE_SIZE */
       unsigned invalid:1;
-      unsigned pad:19;
+      unsigned pad:15;
    } bits;
    unsigned value;
 };
@@ -70,11 +75,6 @@ struct softpipe_cached_tile
 #define NUM_ENTRIES 50
 
 
-/** XXX move these */
-#define MAX_WIDTH 4096
-#define MAX_HEIGHT 4096
-
-
 struct softpipe_tile_cache
 {
    struct pipe_context *pipe;