r300g: fix HiZ memory size computation and deciding when to use HiZ

I removed the HiZ memory management, because the HiZ RAM is too small
and I also did it in hope that HiZ will be enabled more often.

This also sets aligned strides to HIZ_PITCH and ZMASK_PITCH.

1 files changed, 33 insertions, 30 deletions

diff --git a/src/gallium/drivers/r300/r300_blit.c b/src/gallium/drivers/r300/r300_blit.c
index 4f86db3992..fd8ef444dc 100644
--- a/src/gallium/drivers/r300/r300_blit.c
+++ b/src/gallium/drivers/r300/r300_blit.c
@@ -22,7 +22,6 @@
 
 #include "r300_context.h"
 #include "r300_emit.h"
-#include "r300_hyperz.h"
 #include "r300_texture.h"
 #include "r300_winsys.h"
 
@@ -117,6 +116,14 @@ static boolean r300_fast_zclear_allowed(struct r300_context *r300)
     return r300_resource(fb->zsbuf->texture)->tex.zmask_dwords[fb->zsbuf->u.tex.level];
 }
 
+static boolean r300_hiz_clear_allowed(struct r300_context *r300)
+{
+    struct pipe_framebuffer_state *fb =
+        (struct pipe_framebuffer_state*)r300->fb_state.state;
+
+    return r300_resource(fb->zsbuf->texture)->tex.hiz_dwords[fb->zsbuf->u.tex.level];
+}
+
 static uint32_t r300_depth_clear_value(enum pipe_format format,
                                        double depth, unsigned stencil)
 {
@@ -190,8 +197,6 @@ static void r300_clear(struct pipe_context* pipe,
         (struct pipe_framebuffer_state*)r300->fb_state.state;
     struct r300_hyperz_state *hyperz =
         (struct r300_hyperz_state*)r300->hyperz_state.state;
-    struct r300_resource *zstex =
-            fb->zsbuf ? r300_resource(fb->zsbuf->texture) : NULL;
     uint32_t width = fb->width;
     uint32_t height = fb->height;
     boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
@@ -200,20 +205,17 @@ static void r300_clear(struct pipe_context* pipe,
     /* Enable fast Z clear.
      * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
     if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && can_hyperz) {
-        hyperz_dcv = hyperz->zb_depthclearvalue =
-            r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
-
         if (r300_fast_zclear_allowed(r300)) {
+            hyperz_dcv = hyperz->zb_depthclearvalue =
+                r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
+
             r300_mark_atom_dirty(r300, &r300->zmask_clear);
             buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
         }
 
-        if (zstex->hiz_mem[fb->zsbuf->u.tex.level])
+        if (r300_hiz_clear_allowed(r300)) {
             r300_mark_atom_dirty(r300, &r300->hiz_clear);
-
-        /* XXX Change this to r300_mark_atom_dirty(r300, &r300->hyperz_state);
-         * once hiz offset is constant. */
-        r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
+        }
     }
 
     /* Enable CBZB clear. */
@@ -240,14 +242,14 @@ static void r300_clear(struct pipe_context* pipe,
                            fb->nr_cbufs,
                            buffers, rgba, depth, stencil);
         r300_blitter_end(r300);
-    } else if (r300->zmask_clear.dirty) {
+    } else if (r300->zmask_clear.dirty || r300->hiz_clear.dirty) {
         /* Just clear zmask and hiz now, this does not use the standard draw
          * procedure. */
         unsigned dwords;
 
         /* Calculate zmask_clear and hiz_clear atom sizes. */
         r300_update_hyperz_state(r300);
-        dwords = r300->zmask_clear.size +
+        dwords = (r300->zmask_clear.dirty ? r300->zmask_clear.size : 0) +
                  (r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) +
                  r300_get_num_cs_end_dwords(r300);
 
@@ -257,9 +259,11 @@ static void r300_clear(struct pipe_context* pipe,
         }
 
         /* Emit clear packets. */
-        r300_emit_zmask_clear(r300, r300->zmask_clear.size,
-                              r300->zmask_clear.state);
-        r300->zmask_clear.dirty = FALSE;
+        if (r300->zmask_clear.dirty) {
+            r300_emit_zmask_clear(r300, r300->zmask_clear.size,
+                                  r300->zmask_clear.state);
+            r300->zmask_clear.dirty = FALSE;
+        }
         if (r300->hiz_clear.dirty) {
             r300_emit_hiz_clear(r300, r300->hiz_clear.size,
                                 r300->hiz_clear.state);
@@ -279,9 +283,8 @@ static void r300_clear(struct pipe_context* pipe,
     /* Enable fastfill and/or hiz.
      *
      * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
-     * looks if zmask/hiz is in use and enables fastfill accordingly. */
-    if (r300->zmask_in_use ||
-        (zstex && zstex->hiz_in_use[fb->zsbuf->u.tex.level])) {
+     * looks if zmask/hiz is in use and programs hardware accordingly. */
+    if (r300->zmask_in_use || r300->hiz_in_use) {
         r300_mark_atom_dirty(r300, &r300->hyperz_state);
     }
 }
@@ -295,7 +298,7 @@ static void r300_clear_render_target(struct pipe_context *pipe,
 {
     struct r300_context *r300 = r300_context(pipe);
 
-    r300->zmask_locked = TRUE;
+    r300->hyperz_locked = TRUE;
     r300_mark_atom_dirty(r300, &r300->hyperz_state);
 
     r300_blitter_begin(r300, R300_CLEAR_SURFACE);
@@ -303,7 +306,7 @@ static void r300_clear_render_target(struct pipe_context *pipe,
                                      dstx, dsty, width, height);
     r300_blitter_end(r300);
 
-    r300->zmask_locked = FALSE;
+    r300->hyperz_locked = FALSE;
     r300_mark_atom_dirty(r300, &r300->hyperz_state);
 }
 
@@ -320,11 +323,11 @@ static void r300_clear_depth_stencil(struct pipe_context *pipe,
     struct pipe_framebuffer_state *fb =
         (struct pipe_framebuffer_state*)r300->fb_state.state;
 
-    if (r300->zmask_in_use && !r300->zmask_locked) {
+    if (r300->zmask_in_use && !r300->hyperz_locked) {
         if (fb->zsbuf->texture == dst->texture) {
             r300_decompress_zmask(r300);
         } else {
-            r300->zmask_locked = TRUE;
+            r300->hyperz_locked = TRUE;
             r300_mark_atom_dirty(r300, &r300->hyperz_state);
         }
     }
@@ -334,8 +337,8 @@ static void r300_clear_depth_stencil(struct pipe_context *pipe,
                                      dstx, dsty, width, height);
     r300_blitter_end(r300);
 
-    if (r300->zmask_locked) {
-        r300->zmask_locked = FALSE;
+    if (r300->hyperz_locked) {
+        r300->hyperz_locked = FALSE;
         r300_mark_atom_dirty(r300, &r300->hyperz_state);
     }
 }
@@ -345,7 +348,7 @@ void r300_decompress_zmask(struct r300_context *r300)
     struct pipe_framebuffer_state *fb =
         (struct pipe_framebuffer_state*)r300->fb_state.state;
 
-    if (!r300->zmask_in_use || r300->zmask_locked)
+    if (!r300->zmask_in_use || r300->hyperz_locked)
         return;
 
     r300->zmask_decompress = TRUE;
@@ -420,12 +423,12 @@ static void r300_resource_copy_region(struct pipe_context *pipe,
             util_format_description(dst->format);
     struct pipe_box box;
 
-    if (r300->zmask_in_use && !r300->zmask_locked) {
+    if (r300->zmask_in_use && !r300->hyperz_locked) {
         if (fb->zsbuf->texture == src ||
             fb->zsbuf->texture == dst) {
             r300_decompress_zmask(r300);
         } else {
-            r300->zmask_locked = TRUE;
+            r300->hyperz_locked = TRUE;
             r300_mark_atom_dirty(r300, &r300->hyperz_state);
         }
     }
@@ -502,8 +505,8 @@ static void r300_resource_copy_region(struct pipe_context *pipe,
     if (old_dst.format != new_dst.format)
         r300_resource_set_properties(pipe->screen, dst, 0, &old_dst);
 
-    if (r300->zmask_locked) {
-        r300->zmask_locked = FALSE;
+    if (r300->hyperz_locked) {
+        r300->hyperz_locked = FALSE;
         r300_mark_atom_dirty(r300, &r300->hyperz_state);
     }
 }