From 7344e20ce4a333bfd8ab142cfdf98098e16b001d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= <maraeo@gmail.com>
Date: Fri, 12 Feb 2010 02:48:03 +0100
Subject: [PATCH] r300g: set the correct tiling flags for renderbuffers

MACRO_SWITCH is applied to samplers but not renderbuffers. This commit
fixes incorrect rendering to large and small mipmaps where the large ones
are macrotiled and the small ones are not and both are emitted
in the same CS.

Note that this is still disabled by default (rework of texture transfers
is next).
---
 src/gallium/drivers/r300/r300_state.c | 68 +++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 7fc51cd9a62..b4c8ca45ab7 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -38,6 +38,8 @@
 #include "r300_fs.h"
 #include "r300_vs.h"
 
+#include "radeon_winsys.h"
+
 /* r300_state: Functions used to intialize state context by translating
  * Gallium state objects into semi-native r300 state objects. */
 
@@ -496,6 +498,69 @@ static void r300_set_stencil_ref(struct pipe_context* pipe,
     r300->dsa_state.dirty = TRUE;
 }
 
+/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */
+static void r300_fb_update_tiling_flags(struct r300_context *r300,
+                               const struct pipe_framebuffer_state *old_state,
+                               const struct pipe_framebuffer_state *new_state)
+{
+    struct r300_texture *tex;
+    unsigned i, j, level;
+
+    /* Reset tiling flags for old surfaces to default values. */
+    for (i = 0; i < old_state->nr_cbufs; i++) {
+        for (j = 0; j < new_state->nr_cbufs; j++) {
+            if (old_state->cbufs[i]->texture == new_state->cbufs[j]->texture) {
+                break;
+            }
+        }
+        /* If not binding the surface again... */
+        if (j != new_state->nr_cbufs) {
+            continue;
+        }
+
+        tex = (struct r300_texture*)old_state->cbufs[i]->texture;
+
+        if (tex) {
+            r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer,
+                                            tex->pitch[0],
+                                            tex->microtile != 0,
+                                            tex->macrotile != 0);
+        }
+    }
+    if (old_state->zsbuf &&
+        (!new_state->zsbuf ||
+         old_state->zsbuf->texture != new_state->zsbuf->texture)) {
+        tex = (struct r300_texture*)old_state->zsbuf->texture;
+
+        if (tex) {
+            r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer,
+                                            tex->pitch[0],
+                                            tex->microtile != 0,
+                                            tex->macrotile != 0);
+        }
+    }
+
+    /* Set tiling flags for new surfaces. */
+    for (i = 0; i < new_state->nr_cbufs; i++) {
+        tex = (struct r300_texture*)new_state->cbufs[i]->texture;
+        level = new_state->cbufs[i]->level;
+
+        r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer,
+                                        tex->pitch[level],
+                                        tex->microtile != 0,
+                                        tex->mip_macrotile[level] != 0);
+    }
+    if (new_state->zsbuf) {
+        tex = (struct r300_texture*)new_state->zsbuf->texture;
+        level = new_state->zsbuf->level;
+
+        r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer,
+                                        tex->pitch[level],
+                                        tex->microtile != 0,
+                                        tex->mip_macrotile[level] != 0);
+    }
+}
+
 static void
     r300_set_framebuffer_state(struct pipe_context* pipe,
                                const struct pipe_framebuffer_state* state)
@@ -526,6 +591,7 @@ static void
         return;
     }
 
+
     if (r300->draw) {
         draw_flush(r300->draw);
     }
@@ -534,6 +600,8 @@ static void
 
     r300->fb_state.size = (10 * state->nr_cbufs) + (state->zsbuf ? 10 : 0) + 6;
 
+    r300_fb_update_tiling_flags(r300, r300->fb_state.state, state);
+
     /* XXX wait what */
     r300->blend_state.dirty = TRUE;
     r300->dsa_state.dirty = TRUE;
-- 
2.30.2