gallium: remove pipe_buffer from surfaces

this change disassociates, at least from the driver perspective,
the surface from buffer. surfaces are technically now views on the
textures so make it so by hiding the buffer in the internals of
textures.

3 files changed, 9 insertions, 6 deletions

diff --git a/src/gallium/drivers/nv20/nv20_miptree.c b/src/gallium/drivers/nv20/nv20_miptree.c
index d2038c391d..8e4cc80902 100644
--- a/src/gallium/drivers/nv20/nv20_miptree.c
+++ b/src/gallium/drivers/nv20/nv20_miptree.c
@@ -106,7 +106,6 @@ nv20_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt,
 	if (!ps)
 		return NULL;
 	pipe_texture_reference(&ps->texture, pt);
-	pipe_buffer_reference(screen, &ps->buffer, nv20mt->buffer);
 	ps->format = pt->format;
 	ps->width = pt->width[level];
 	ps->height = pt->height[level];
@@ -141,7 +140,6 @@ nv20_miptree_surface_release(struct pipe_screen *pscreen,
 		return;
 
 	pipe_texture_reference(&ps->texture, NULL);
-	pipe_buffer_reference(pscreen, &ps->buffer, NULL);
 	FREE(ps);
 }
 
diff --git a/src/gallium/drivers/nv20/nv20_screen.c b/src/gallium/drivers/nv20/nv20_screen.c
index f09b364b8d..c9171fa178 100644
--- a/src/gallium/drivers/nv20/nv20_screen.c
+++ b/src/gallium/drivers/nv20/nv20_screen.c
@@ -122,8 +122,9 @@ nv20_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 {
 	struct pipe_winsys *ws = screen->winsys;
 	void *map;
+	struct nv20_miptree *nv20mt = (struct nv20_miptree *)surface->texture;
 
-	map = ws->buffer_map(ws, surface->buffer, flags);
+	map = ws->buffer_map(ws, nv20mt->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -134,8 +135,9 @@ static void
 nv20_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 {
 	struct pipe_winsys *ws = screen->winsys;
+	struct nv20_miptree *nv20mt = (struct nv20_miptree *)surface->texture;
 
-	ws->buffer_unmap(ws, surface->buffer);
+	ws->buffer_unmap(ws, nv20mt->buffer);
 }
 
 static void
diff --git a/src/gallium/drivers/nv20/nv20_state_emit.c b/src/gallium/drivers/nv20/nv20_state_emit.c
index ea20078a50..0f4df9ca31 100644
--- a/src/gallium/drivers/nv20/nv20_state_emit.c
+++ b/src/gallium/drivers/nv20/nv20_state_emit.c
@@ -112,6 +112,7 @@ static void nv20_state_emit_framebuffer(struct nv20_context* nv20)
 	struct pipe_surface *rt, *zeta = NULL;
 	uint32_t rt_format, w, h;
 	int colour_format = 0, zeta_format = 0;
+	struct nv20_miptree *nv20mt = 0;
 
 	w = fb->cbufs[0]->width;
 	h = fb->cbufs[0]->height;
@@ -153,11 +154,13 @@ static void nv20_state_emit_framebuffer(struct nv20_context* nv20)
 		OUT_RING  (rt->stride | (rt->stride << 16));
 	}
 
-	nv20->rt[0] = rt->buffer;
+	nv20mt = (struct nv20_miptree *)rt->texture;
+	nv20->rt[0] = nv20mt->buffer;
 
 	if (zeta_format)
 	{
-		nv20->zeta = zeta->buffer;
+		nv20mt = (struct nv20_miptree *)zeta->texture;
+		nv20->zeta = nv20mt->buffer;
 	}
 
 	BEGIN_RING(kelvin, NV20TCL_RT_HORIZ, 3);