From e53303ba3b69c2c82cefd58e90d06132c2af2bb7 Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 10 Dec 2007 14:25:30 -0700
Subject: Cell driver state-setter functions, basic tile get/put, glClear.

The state setting code was mostly just copied from the softpipe driver.
The SPUs can now get/put framebuffer tiles from/to main memory and clear
them to a given color.  Lots of debug code in effect.
Tiled framebuffer is displayed in X window via the xmwinsys layer.
To enable Cell driver, export GALLIUM_CELL=1
---
 src/mesa/pipe/cell/ppu/cell_state_surface.c | 99 +++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 src/mesa/pipe/cell/ppu/cell_state_surface.c

(limited to 'src/mesa/pipe/cell/ppu/cell_state_surface.c')

diff --git a/src/mesa/pipe/cell/ppu/cell_state_surface.c b/src/mesa/pipe/cell/ppu/cell_state_surface.c
new file mode 100644
index 0000000000..f7330caf5e
--- /dev/null
+++ b/src/mesa/pipe/cell/ppu/cell_state_surface.c
@@ -0,0 +1,99 @@
+
+
+#include "cell_context.h"
+#include "cell_state.h"
+
+void
+cell_set_framebuffer_state(struct pipe_context *pipe,
+                           const struct pipe_framebuffer_state *fb)
+{
+   struct cell_context *cell = cell_context(pipe);
+
+   cell->framebuffer = *fb;
+
+   cell->dirty |= CELL_NEW_FRAMEBUFFER;
+
+#if 0
+   struct pipe_surface *ps;
+   uint i;
+
+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
+      /* check if changing cbuf */
+      if (sp->framebuffer.cbufs[i] != fb->cbufs[i]) {
+         /* flush old */
+         sp_flush_tile_cache(sp, sp->cbuf_cache[i]);
+         /* unmap old */
+         ps = sp->framebuffer.cbufs[i];
+         if (ps && ps->map)
+            pipe_surface_unmap(ps);
+         /* map new */
+         ps = fb->cbufs[i];
+         if (ps)
+            pipe_surface_map(ps);
+         /* assign new */
+         sp->framebuffer.cbufs[i] = fb->cbufs[i];
+
+         /* update cache */
+         sp_tile_cache_set_surface(sp, sp->cbuf_cache[i], ps);
+      }
+   }
+
+   sp->framebuffer.num_cbufs = fb->num_cbufs;
+
+   /* zbuf changing? */
+   if (sp->framebuffer.zbuf != fb->zbuf) {
+      /* flush old */
+      sp_flush_tile_cache(sp, sp->zbuf_cache);
+      /* unmap old */
+      ps = sp->framebuffer.zbuf;
+      if (ps && ps->map)
+         pipe_surface_unmap(ps);
+      if (sp->framebuffer.sbuf == sp->framebuffer.zbuf) {
+         /* combined z/stencil */
+         sp->framebuffer.sbuf = NULL;
+      }
+      /* map new */
+      ps = fb->zbuf;
+      if (ps)
+         pipe_surface_map(ps);
+      /* assign new */
+      sp->framebuffer.zbuf = fb->zbuf;
+
+      /* update cache */
+      sp_tile_cache_set_surface(sp, sp->zbuf_cache, ps);
+   }
+
+   /* XXX combined depth/stencil here */
+
+   /* sbuf changing? */
+   if (sp->framebuffer.sbuf != fb->sbuf) {
+      /* flush old */
+      sp_flush_tile_cache(sp, sp->sbuf_cache_sep);
+      /* unmap old */
+      ps = sp->framebuffer.sbuf;
+      if (ps && ps->map)
+         pipe_surface_unmap(ps);
+      /* map new */
+      ps = fb->sbuf;
+      if (ps && fb->sbuf != fb->zbuf)
+         pipe_surface_map(ps);
+      /* assign new */
+      sp->framebuffer.sbuf = fb->sbuf;
+
+      /* update cache */
+      if (fb->sbuf != fb->zbuf) {
+         /* separate stencil buf */
+         sp->sbuf_cache = sp->sbuf_cache_sep;
+         sp_tile_cache_set_surface(sp, sp->sbuf_cache, ps);
+      }
+      else {
+         /* combined depth/stencil */
+         sp->sbuf_cache = sp->zbuf_cache;
+         sp_tile_cache_set_surface(sp, sp->sbuf_cache, ps);
+      }
+   }
+
+   sp->dirty |= SP_NEW_FRAMEBUFFER;
+#endif
+}
+
-- 
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