Merge remote branch 'origin/lp-binning'

Conflicts:
	src/gallium/auxiliary/util/u_dl.c
	src/gallium/auxiliary/util/u_time.h
	src/gallium/drivers/llvmpipe/lp_state_derived.c
	src/gallium/drivers/llvmpipe/lp_state_surface.c
	src/gallium/drivers/llvmpipe/lp_tex_cache.c
	src/gallium/drivers/llvmpipe/lp_tile_cache.c

1 files changed, 501 insertions, 1274 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_setup.c b/src/gallium/drivers/llvmpipe/lp_setup.c
index 92baa980bcc..2e3ef4ae5cd 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup.c
@@ -26,1477 +26,704 @@
  **************************************************************************/
 
 /**
- * \brief  Primitive rasterization/rendering (points, lines, triangles)
+ * Tiling engine.
  *
- * \author  Keith Whitwell <[email protected]>
- * \author  Brian Paul
+ * Builds per-tile display lists and executes them on calls to
+ * lp_setup_flush().
  */
 
-#include "lp_context.h"
-#include "lp_quad.h"
-#include "lp_setup.h"
-#include "lp_state.h"
-#include "draw/draw_context.h"
-#include "draw/draw_vertex.h"
-#include "pipe/p_shader_tokens.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
 #include "util/u_memory.h"
-#include "lp_bld_debug.h"
-#include "lp_tile_cache.h"
-#include "lp_tile_soa.h"
-
-
-#define DEBUG_VERTS 0
-#define DEBUG_FRAGS 0
-
-/**
- * Triangle edge info
- */
-struct edge {
-   float dx;		/**< X(v1) - X(v0), used only during setup */
-   float dy;		/**< Y(v1) - Y(v0), used only during setup */
-   float dxdy;		/**< dx/dy */
-   float sx, sy;	/**< first sample point coord */
-   int lines;		/**< number of lines on this edge */
-};
-
-
-#define MAX_QUADS 16
-
+#include "util/u_pack_color.h"
+#include "util/u_surface.h"
+#include "lp_scene.h"
+#include "lp_scene_queue.h"
+#include "lp_buffer.h"
+#include "lp_texture.h"
+#include "lp_debug.h"
+#include "lp_fence.h"
+#include "lp_rast.h"
+#include "lp_setup_context.h"
 
-/**
- * Triangle setup info (derived from draw_stage).
- * Also used for line drawing (taking some liberties).
- */
-struct setup_context {
-   struct llvmpipe_context *llvmpipe;
-
-   /* Vertices are just an array of floats making up each attribute in
-    * turn.  Currently fixed at 4 floats, but should change in time.
-    * Codegen will help cope with this.
-    */
-   const float (*vmax)[4];
-   const float (*vmid)[4];
-   const float (*vmin)[4];
-   const float (*vprovoke)[4];
-
-   struct edge ebot;
-   struct edge etop;
-   struct edge emaj;
-
-   float oneoverarea;
-   int facing;
+#include "draw/draw_context.h"
+#include "draw/draw_vbuf.h"
 
-   float pixel_offset;
 
-   struct quad_header quad[MAX_QUADS];
-   struct quad_header *quad_ptrs[MAX_QUADS];
-   unsigned count;
+static void set_scene_state( struct setup_context *, unsigned );
 
-   struct quad_interp_coef coef;
 
-   struct {
-      int left[2];   /**< [0] = row0, [1] = row1 */
-      int right[2];
-      int y;
-   } span;
+struct lp_scene *
+lp_setup_get_current_scene(struct setup_context *setup)
+{
+   if (!setup->scene) {
 
-#if DEBUG_FRAGS
-   uint numFragsEmitted;  /**< per primitive */
-   uint numFragsWritten;  /**< per primitive */
-#endif
+      /* wait for a free/empty scene
+       */
+      setup->scene = lp_scene_dequeue(setup->empty_scenes, TRUE);
 
-   unsigned winding;		/* which winding to cull */
-};
+      if(0)lp_scene_reset( setup->scene ); /* XXX temporary? */
 
+      lp_scene_set_framebuffer_size(setup->scene,
+                                    setup->fb.width, 
+                                    setup->fb.height);
+   }
+   return setup->scene;
+}
 
 
-/**
- * Execute fragment shader for the four fragments in the quad.
- */
-PIPE_ALIGN_STACK
 static void
-shade_quads(struct llvmpipe_context *llvmpipe,
-            struct quad_header *quads[],
-            unsigned nr)
+first_triangle( struct setup_context *setup,
+                const float (*v0)[4],
+                const float (*v1)[4],
+                const float (*v2)[4])
 {
-   struct lp_fragment_shader *fs = llvmpipe->fs;
-   struct quad_header *quad = quads[0];
-   const unsigned x = quad->input.x0;
-   const unsigned y = quad->input.y0;
-   uint8_t *tile;
-   uint8_t *color;
-   void *depth;
-   PIPE_ALIGN_VAR(16) uint32_t mask[4][NUM_CHANNELS];
-   unsigned chan_index;
-   unsigned q;
-
-   assert(fs->current);
-   if(!fs->current)
-      return;
-
-   /* Sanity checks */
-   assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH);
-   assert(x % TILE_VECTOR_WIDTH == 0);
-   assert(y % TILE_VECTOR_HEIGHT == 0);
-   for (q = 0; q < nr; ++q) {
-      assert(quads[q]->input.x0 == x + q*2);
-      assert(quads[q]->input.y0 == y);
-   }
-
-   /* mask */
-   for (q = 0; q < 4; ++q)
-      for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
-         mask[q][chan_index] = quads[q]->inout.mask & (1 << chan_index) ? ~0 : 0;
+   set_scene_state( setup, SETUP_ACTIVE );
+   lp_setup_choose_triangle( setup );
+   setup->triangle( setup, v0, v1, v2 );
+}
 
-   /* color buffer */
-   if(llvmpipe->framebuffer.nr_cbufs >= 1 &&
-      llvmpipe->framebuffer.cbufs[0]) {
-      tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
-      color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
-   }
-   else
-      color = NULL;
-
-   /* depth buffer */
-   if(llvmpipe->zsbuf_map) {
-      assert((x % 2) == 0);
-      assert((y % 2) == 0);
-      depth = llvmpipe->zsbuf_map +
-              y*llvmpipe->zsbuf_transfer->stride +
-              2*x*util_format_get_blocksize(llvmpipe->zsbuf_transfer->texture->format);
-   }
-   else
-      depth = NULL;
-
-   /* XXX: This will most likely fail on 32bit x86 without -mstackrealign */
-   assert(lp_check_alignment(mask, 16));
-
-   assert(lp_check_alignment(depth, 16));
-   assert(lp_check_alignment(color, 16));
-   assert(lp_check_alignment(llvmpipe->jit_context.blend_color, 16));
-
-   /* run shader */
-   fs->current->jit_function( &llvmpipe->jit_context,
-                              x, y,
-                              quad->coef->a0,
-                              quad->coef->dadx,
-                              quad->coef->dady,
-                              &mask[0][0],
-                              color,
-                              depth);
+static void
+first_line( struct setup_context *setup,
+	    const float (*v0)[4],
+	    const float (*v1)[4])
+{
+   set_scene_state( setup, SETUP_ACTIVE );
+   lp_setup_choose_line( setup );
+   setup->line( setup, v0, v1 );
 }
 
+static void
+first_point( struct setup_context *setup,
+	     const float (*v0)[4])
+{
+   set_scene_state( setup, SETUP_ACTIVE );
+   lp_setup_choose_point( setup );
+   setup->point( setup, v0 );
+}
 
+static void reset_context( struct setup_context *setup )
+{
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
+   /* Reset derived state */
+   setup->constants.stored_size = 0;
+   setup->constants.stored_data = NULL;
+   setup->fs.stored = NULL;
+   setup->dirty = ~0;
 
-/**
- * Do triangle cull test using tri determinant (sign indicates orientation)
- * \return true if triangle is to be culled.
- */
-static INLINE boolean
-cull_tri(const struct setup_context *setup, float det)
-{
-   if (det != 0) {   
-      /* if (det < 0 then Z points toward camera and triangle is 
-       * counter-clockwise winding.
-       */
-      unsigned winding = (det < 0) ? PIPE_WINDING_CCW : PIPE_WINDING_CW;
+   /* no current bin */
+   setup->scene = NULL;
 
-      if ((winding & setup->winding) == 0)
-	 return FALSE;
-   }
+   /* Reset some state:
+    */
+   setup->clear.flags = 0;
 
-   /* Culled:
+   /* Have an explicit "start-binning" call and get rid of this
+    * pointer twiddling?
     */
-   return TRUE;
+   setup->line = first_line;
+   setup->point = first_point;
+   setup->triangle = first_triangle;
 }
 
 
-
-/**
- * Clip setup->quad against the scissor/surface bounds.
- */
-static INLINE void
-quad_clip( struct setup_context *setup, struct quad_header *quad )
+/** Rasterize all scene's bins */
+static void
+lp_setup_rasterize_scene( struct setup_context *setup,
+			 boolean write_depth )
 {
-   const struct pipe_scissor_state *cliprect = &setup->llvmpipe->cliprect;
-   const int minx = (int) cliprect->minx;
-   const int maxx = (int) cliprect->maxx;
-   const int miny = (int) cliprect->miny;
-   const int maxy = (int) cliprect->maxy;
-
-   if (quad->input.x0 >= maxx ||
-       quad->input.y0 >= maxy ||
-       quad->input.x0 + 1 < minx ||
-       quad->input.y0 + 1 < miny) {
-      /* totally clipped */
-      quad->inout.mask = 0x0;
-      return;
-   }
-   if (quad->input.x0 < minx)
-      quad->inout.mask &= (MASK_BOTTOM_RIGHT | MASK_TOP_RIGHT);
-   if (quad->input.y0 < miny)
-      quad->inout.mask &= (MASK_BOTTOM_LEFT | MASK_BOTTOM_RIGHT);
-   if (quad->input.x0 == maxx - 1)
-      quad->inout.mask &= (MASK_BOTTOM_LEFT | MASK_TOP_LEFT);
-   if (quad->input.y0 == maxy - 1)
-      quad->inout.mask &= (MASK_TOP_LEFT | MASK_TOP_RIGHT);
-}
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
 
+   lp_rasterize_scene(setup->rast,
+                      scene,
+                      &setup->fb,
+                      write_depth);
 
+   reset_context( setup );
 
-/**
- * Given an X or Y coordinate, return the block/quad coordinate that it
- * belongs to.
- */
-static INLINE int block( int x )
-{
-   return x & ~(2-1);
+   LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
 }
 
-static INLINE int block_x( int x )
+
+
+static void
+begin_binning( struct setup_context *setup )
 {
-   return x & ~(TILE_VECTOR_WIDTH - 1);
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
+
+   LP_DBG(DEBUG_SETUP, "%s color: %s depth: %s\n", __FUNCTION__,
+          (setup->clear.flags & PIPE_CLEAR_COLOR) ? "clear": "load",
+          (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) ? "clear": "load");
+
+   if (setup->fb.nr_cbufs) {
+      if (setup->clear.flags & PIPE_CLEAR_COLOR)
+         lp_scene_bin_everywhere( scene, 
+				  lp_rast_clear_color, 
+				  setup->clear.color );
+      else
+         lp_scene_bin_everywhere( scene,
+				  lp_rast_load_color,
+				  lp_rast_arg_null() );
+   }
+
+   if (setup->fb.zsbuf) {
+      if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL)
+         lp_scene_bin_everywhere( scene, 
+				  lp_rast_clear_zstencil, 
+				  setup->clear.zstencil );
+      else
+         lp_scene_bin_everywhere( scene,
+				  lp_rast_load_zstencil,
+				  lp_rast_arg_null() );
+   }
+
+   LP_DBG(DEBUG_SETUP, "%s done\n", __FUNCTION__);
 }
 
 
-/**
- * Emit a quad (pass to next stage) with clipping.
+/* This basically bins and then flushes any outstanding full-screen
+ * clears.  
+ *
+ * TODO: fast path for fullscreen clears and no triangles.
  */
-static INLINE void
-clip_emit_quad( struct setup_context *setup, struct quad_header *quad )
+static void
+execute_clears( struct setup_context *setup )
 {
-   quad_clip( setup, quad );
-
-   if (quad->inout.mask) {
-      struct llvmpipe_context *lp = setup->llvmpipe;
-
-#if 1
-      /* XXX: The blender expects 4 quads. This is far from efficient, but
-       * until we codegenerate single-quad variants of the fragment pipeline
-       * we need this hack. */
-      const unsigned nr_quads = TILE_VECTOR_HEIGHT*TILE_VECTOR_WIDTH/QUAD_SIZE;
-      struct quad_header quads[4];
-      struct quad_header *quad_ptrs[4];
-      int x0 = block_x(quad->input.x0);
-      unsigned i;
-
-      assert(nr_quads == 4);
-
-      for(i = 0; i < nr_quads; ++i) {
-         int x = x0 + 2*i;
-         if(x == quad->input.x0)
-            memcpy(&quads[i], quad, sizeof quads[i]);
-         else {
-            memset(&quads[i], 0, sizeof quads[i]);
-            quads[i].input.x0 = x;
-            quads[i].input.y0 = quad->input.y0;
-            quads[i].coef = quad->coef;
-         }
-         quad_ptrs[i] = &quads[i];
-      }
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-      shade_quads( lp, quad_ptrs, nr_quads );
-#else
-      shade_quads( lp, &quad, 1 );
-#endif
-   }
+   begin_binning( setup );
+   lp_setup_rasterize_scene( setup, TRUE );
 }
 
 
-/**
- * Render a horizontal span of quads
- */
-static void flush_spans( struct setup_context *setup )
+static void
+set_scene_state( struct setup_context *setup,
+           unsigned new_state )
 {
-   const int step = TILE_VECTOR_WIDTH;
-   const int xleft0 = setup->span.left[0];
-   const int xleft1 = setup->span.left[1];
-   const int xright0 = setup->span.right[0];
-   const int xright1 = setup->span.right[1];
-
-
-   int minleft = block_x(MIN2(xleft0, xleft1));
-   int maxright = MAX2(xright0, xright1);
-   int x;
-
-   for (x = minleft; x < maxright; x += step) {
-      unsigned skip_left0 = CLAMP(xleft0 - x, 0, step);
-      unsigned skip_left1 = CLAMP(xleft1 - x, 0, step);
-      unsigned skip_right0 = CLAMP(x + step - xright0, 0, step);
-      unsigned skip_right1 = CLAMP(x + step - xright1, 0, step);
-      unsigned lx = x;
-      const unsigned nr_quads = TILE_VECTOR_HEIGHT*TILE_VECTOR_WIDTH/QUAD_SIZE;
-      unsigned q = 0;
-
-      unsigned skipmask_left0 = (1U << skip_left0) - 1U;
-      unsigned skipmask_left1 = (1U << skip_left1) - 1U;
-
-      /* These calculations fail when step == 32 and skip_right == 0.
-       */
-      unsigned skipmask_right0 = ~0U << (unsigned)(step - skip_right0);
-      unsigned skipmask_right1 = ~0U << (unsigned)(step - skip_right1);
-
-      unsigned mask0 = ~skipmask_left0 & ~skipmask_right0;
-      unsigned mask1 = ~skipmask_left1 & ~skipmask_right1;
-
-      if (mask0 | mask1) {
-         for(q = 0; q < nr_quads; ++q) {
-            unsigned quadmask = (mask0 & 3) | ((mask1 & 3) << 2);
-            setup->quad[q].input.x0 = lx;
-            setup->quad[q].input.y0 = setup->span.y;
-            setup->quad[q].inout.mask = quadmask;
-            setup->quad_ptrs[q] = &setup->quad[q];
-            mask0 >>= 2;
-            mask1 >>= 2;
-            lx += 2;
-         }
-         assert(!(mask0 | mask1));
+   unsigned old_state = setup->state;
 
-         shade_quads(setup->llvmpipe, setup->quad_ptrs, nr_quads );
+   if (old_state == new_state)
+      return;
+       
+   LP_DBG(DEBUG_SETUP, "%s old %d new %d\n", __FUNCTION__, old_state, new_state);
+
+   switch (new_state) {
+   case SETUP_ACTIVE:
+      begin_binning( setup );
+      break;
+
+   case SETUP_CLEARED:
+      if (old_state == SETUP_ACTIVE) {
+         assert(0);
+         return;
       }
+      break;
+      
+   case SETUP_FLUSHED:
+      if (old_state == SETUP_CLEARED)
+         execute_clears( setup );
+      else
+         lp_setup_rasterize_scene( setup, TRUE );
+      break;
    }
 
-
-   setup->span.y = 0;
-   setup->span.right[0] = 0;
-   setup->span.right[1] = 0;
-   setup->span.left[0] = 1000000;     /* greater than right[0] */
-   setup->span.left[1] = 1000000;     /* greater than right[1] */
+   setup->state = new_state;
 }
 
 
-#if DEBUG_VERTS
-static void print_vertex(const struct setup_context *setup,
-                         const float (*v)[4])
+void
+lp_setup_flush( struct setup_context *setup,
+                unsigned flags )
 {
-   int i;
-   debug_printf("   Vertex: (%p)\n", v);
-   for (i = 0; i < setup->quad[0].nr_attrs; i++) {
-      debug_printf("     %d: %f %f %f %f\n",  i,
-              v[i][0], v[i][1], v[i][2], v[i][3]);
-      if (util_is_inf_or_nan(v[i][0])) {
-         debug_printf("   NaN!\n");
-      }
-   }
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
+
+   set_scene_state( setup, SETUP_FLUSHED );
 }
-#endif
 
-/**
- * Sort the vertices from top to bottom order, setting up the triangle
- * edge fields (ebot, emaj, etop).
- * \return FALSE if coords are inf/nan (cull the tri), TRUE otherwise
- */
-static boolean setup_sort_vertices( struct setup_context *setup,
-                                    float det,
-                                    const float (*v0)[4],
-                                    const float (*v1)[4],
-                                    const float (*v2)[4] )
-{
-   setup->vprovoke = v2;
-
-   /* determine bottom to top order of vertices */
-   {
-      float y0 = v0[0][1];
-      float y1 = v1[0][1];
-      float y2 = v2[0][1];
-      if (y0 <= y1) {
-	 if (y1 <= y2) {
-	    /* y0<=y1<=y2 */
-	    setup->vmin = v0;
-	    setup->vmid = v1;
-	    setup->vmax = v2;
-	 }
-	 else if (y2 <= y0) {
-	    /* y2<=y0<=y1 */
-	    setup->vmin = v2;
-	    setup->vmid = v0;
-	    setup->vmax = v1;
-	 }
-	 else {
-	    /* y0<=y2<=y1 */
-	    setup->vmin = v0;
-	    setup->vmid = v2;
-	    setup->vmax = v1;
-	 }
-      }
-      else {
-	 if (y0 <= y2) {
-	    /* y1<=y0<=y2 */
-	    setup->vmin = v1;
-	    setup->vmid = v0;
-	    setup->vmax = v2;
-	 }
-	 else if (y2 <= y1) {
-	    /* y2<=y1<=y0 */
-	    setup->vmin = v2;
-	    setup->vmid = v1;
-	    setup->vmax = v0;
-	 }
-	 else {
-	    /* y1<=y2<=y0 */
-	    setup->vmin = v1;
-	    setup->vmid = v2;
-	    setup->vmax = v0;
-	 }
-      }
-   }
 
-   setup->ebot.dx = setup->vmid[0][0] - setup->vmin[0][0];
-   setup->ebot.dy = setup->vmid[0][1] - setup->vmin[0][1];
-   setup->emaj.dx = setup->vmax[0][0] - setup->vmin[0][0];
-   setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1];
-   setup->etop.dx = setup->vmax[0][0] - setup->vmid[0][0];
-   setup->etop.dy = setup->vmax[0][1] - setup->vmid[0][1];
-
-   /*
-    * Compute triangle's area.  Use 1/area to compute partial
-    * derivatives of attributes later.
-    *
-    * The area will be the same as prim->det, but the sign may be
-    * different depending on how the vertices get sorted above.
-    *
-    * To determine whether the primitive is front or back facing we
-    * use the prim->det value because its sign is correct.
-    */
-   {
-      const float area = (setup->emaj.dx * setup->ebot.dy -
-			    setup->ebot.dx * setup->emaj.dy);
-
-      setup->oneoverarea = 1.0f / area;
-
-      /*
-      debug_printf("%s one-over-area %f  area %f  det %f\n",
-                   __FUNCTION__, setup->oneoverarea, area, det );
-      */
-      if (util_is_inf_or_nan(setup->oneoverarea))
-         return FALSE;
-   }
+void
+lp_setup_bind_framebuffer( struct setup_context *setup,
+                           const struct pipe_framebuffer_state *fb )
+{
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
 
-   /* We need to know if this is a front or back-facing triangle for:
-    *  - the GLSL gl_FrontFacing fragment attribute (bool)
-    *  - two-sided stencil test
-    */
-   setup->facing = 
-      ((det > 0.0) ^ 
-       (setup->llvmpipe->rasterizer->front_winding == PIPE_WINDING_CW));
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-   /* Prepare pixel offset for rasterisation:
-    *  - pixel center (0.5, 0.5) for GL, or
-    *  - assume (0.0, 0.0) for other APIs.
-    */
-   if (setup->llvmpipe->rasterizer->gl_rasterization_rules) {
-      setup->pixel_offset = 0.5f;
-   } else {
-      setup->pixel_offset = 0.0f;
-   }
+   set_scene_state( setup, SETUP_FLUSHED );
 
-   return TRUE;
-}
+   /* re-get scene pointer, may have a new scene after flushing */
+   scene = lp_setup_get_current_scene(setup);
 
+   util_copy_framebuffer_state(&setup->fb, fb);
 
-/**
- * Compute a0, dadx and dady for a linearly interpolated coefficient,
- * for a triangle.
- */
-static void tri_pos_coeff( struct setup_context *setup,
-                           uint vertSlot, unsigned i)
-{
-   float botda = setup->vmid[vertSlot][i] - setup->vmin[vertSlot][i];
-   float majda = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i];
-   float a = setup->ebot.dy * majda - botda * setup->emaj.dy;
-   float b = setup->emaj.dx * botda - majda * setup->ebot.dx;
-   float dadx = a * setup->oneoverarea;
-   float dady = b * setup->oneoverarea;
-
-   assert(i <= 3);
-
-   setup->coef.dadx[0][i] = dadx;
-   setup->coef.dady[0][i] = dady;
-
-   /* calculate a0 as the value which would be sampled for the
-    * fragment at (0,0), taking into account that we want to sample at
-    * pixel centers, in other words (pixel_offset, pixel_offset).
-    *
-    * this is neat but unfortunately not a good way to do things for
-    * triangles with very large values of dadx or dady as it will
-    * result in the subtraction and re-addition from a0 of a very
-    * large number, which means we'll end up loosing a lot of the
-    * fractional bits and precision from a0.  the way to fix this is
-    * to define a0 as the sample at a pixel center somewhere near vmin
-    * instead - i'll switch to this later.
-    */
-   setup->coef.a0[0][i] = (setup->vmin[vertSlot][i] -
-                           (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                            dady * (setup->vmin[0][1] - setup->pixel_offset)));
-
-   /*
-   debug_printf("attr[%d].%c: %f dx:%f dy:%f\n",
-                slot, "xyzw"[i],
-                setup->coef[slot].a0[i],
-                setup->coef[slot].dadx[i],
-                setup->coef[slot].dady[i]);
-   */
+   lp_scene_set_framebuffer_size(scene, setup->fb.width, setup->fb.height);
 }
 
 
-/**
- * Compute a0 for a constant-valued coefficient (GL_FLAT shading).
- * The value value comes from vertex[slot][i].
- * The result will be put into setup->coef[slot].a0[i].
- * \param slot  which attribute slot
- * \param i  which component of the slot (0..3)
- */
-static void const_pos_coeff( struct setup_context *setup,
-                             uint vertSlot, unsigned i)
+void
+lp_setup_clear( struct setup_context *setup,
+                const float *color,
+                double depth,
+                unsigned stencil,
+                unsigned flags )
 {
-   setup->coef.dadx[0][i] = 0;
-   setup->coef.dady[0][i] = 0;
-
-   /* need provoking vertex info!
-    */
-   setup->coef.a0[0][i] = setup->vprovoke[vertSlot][i];
-}
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
+   unsigned i;
 
+   LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
 
-/**
- * Compute a0 for a constant-valued coefficient (GL_FLAT shading).
- * The value value comes from vertex[slot][i].
- * The result will be put into setup->coef[slot].a0[i].
- * \param slot  which attribute slot
- * \param i  which component of the slot (0..3)
- */
-static void const_coeff( struct setup_context *setup,
-                         unsigned attrib,
-                         uint vertSlot)
-{
-   unsigned i;
-   for (i = 0; i < NUM_CHANNELS; ++i) {
-      setup->coef.dadx[1 + attrib][i] = 0;
-      setup->coef.dady[1 + attrib][i] = 0;
 
-      /* need provoking vertex info!
-       */
-      setup->coef.a0[1 + attrib][i] = setup->vprovoke[vertSlot][i];
+   if (flags & PIPE_CLEAR_COLOR) {
+      for (i = 0; i < 4; ++i)
+         setup->clear.color.clear_color[i] = float_to_ubyte(color[i]);
    }
-}
 
-
-/**
- * Compute a0, dadx and dady for a linearly interpolated coefficient,
- * for a triangle.
- */
-static void tri_linear_coeff( struct setup_context *setup,
-                              unsigned attrib,
-                              uint vertSlot)
-{
-   unsigned i;
-   for (i = 0; i < NUM_CHANNELS; ++i) {
-      float botda = setup->vmid[vertSlot][i] - setup->vmin[vertSlot][i];
-      float majda = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i];
-      float a = setup->ebot.dy * majda - botda * setup->emaj.dy;
-      float b = setup->emaj.dx * botda - majda * setup->ebot.dx;
-      float dadx = a * setup->oneoverarea;
-      float dady = b * setup->oneoverarea;
-
-      assert(i <= 3);
-
-      setup->coef.dadx[1 + attrib][i] = dadx;
-      setup->coef.dady[1 + attrib][i] = dady;
-
-      /* calculate a0 as the value which would be sampled for the
-       * fragment at (0,0), taking into account that we want to sample at
-       * pixel centers, in other words (0.5, 0.5).
-       *
-       * this is neat but unfortunately not a good way to do things for
-       * triangles with very large values of dadx or dady as it will
-       * result in the subtraction and re-addition from a0 of a very
-       * large number, which means we'll end up loosing a lot of the
-       * fractional bits and precision from a0.  the way to fix this is
-       * to define a0 as the sample at a pixel center somewhere near vmin
-       * instead - i'll switch to this later.
-       */
-      setup->coef.a0[1 + attrib][i] = (setup->vmin[vertSlot][i] -
-                     (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                      dady * (setup->vmin[0][1] - setup->pixel_offset)));
-
-      /*
-      debug_printf("attr[%d].%c: %f dx:%f dy:%f\n",
-                   slot, "xyzw"[i],
-                   setup->coef[slot].a0[i],
-                   setup->coef[slot].dadx[i],
-                   setup->coef[slot].dady[i]);
-      */
+   if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
+      setup->clear.zstencil.clear_zstencil = 
+         util_pack_z_stencil(setup->fb.zsbuf->format, 
+                             depth,
+                             stencil);
    }
-}
 
+   if (setup->state == SETUP_ACTIVE) {
+      /* Add the clear to existing scene.  In the unusual case where
+       * both color and depth-stencil are being cleared when there's
+       * already been some rendering, we could discard the currently
+       * binned scene and start again, but I don't see that as being
+       * a common usage.
+       */
+      if (flags & PIPE_CLEAR_COLOR)
+         lp_scene_bin_everywhere( scene, 
+                                  lp_rast_clear_color,
+                                  setup->clear.color );
 
-/**
- * Compute a0, dadx and dady for a perspective-corrected interpolant,
- * for a triangle.
- * We basically multiply the vertex value by 1/w before computing
- * the plane coefficients (a0, dadx, dady).
- * Later, when we compute the value at a particular fragment position we'll
- * divide the interpolated value by the interpolated W at that fragment.
- */
-static void tri_persp_coeff( struct setup_context *setup,
-                             unsigned attrib,
-                             uint vertSlot)
-{
-   unsigned i;
-   for (i = 0; i < NUM_CHANNELS; ++i) {
-      /* premultiply by 1/w  (v[0][3] is always W):
+      if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL)
+         lp_scene_bin_everywhere( scene, 
+                                  lp_rast_clear_zstencil,
+                                  setup->clear.zstencil );
+   }
+   else {
+      /* Put ourselves into the 'pre-clear' state, specifically to try
+       * and accumulate multiple clears to color and depth_stencil
+       * buffers which the app or state-tracker might issue
+       * separately.
        */
-      float mina = setup->vmin[vertSlot][i] * setup->vmin[0][3];
-      float mida = setup->vmid[vertSlot][i] * setup->vmid[0][3];
-      float maxa = setup->vmax[vertSlot][i] * setup->vmax[0][3];
-      float botda = mida - mina;
-      float majda = maxa - mina;
-      float a = setup->ebot.dy * majda - botda * setup->emaj.dy;
-      float b = setup->emaj.dx * botda - majda * setup->ebot.dx;
-      float dadx = a * setup->oneoverarea;
-      float dady = b * setup->oneoverarea;
-
-      /*
-      debug_printf("tri persp %d,%d: %f %f %f\n", vertSlot, i,
-                   setup->vmin[vertSlot][i],
-                   setup->vmid[vertSlot][i],
-                   setup->vmax[vertSlot][i]
-             );
-      */
-      assert(i <= 3);
-
-      setup->coef.dadx[1 + attrib][i] = dadx;
-      setup->coef.dady[1 + attrib][i] = dady;
-      setup->coef.a0[1 + attrib][i] = (mina -
-                     (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                      dady * (setup->vmin[0][1] - setup->pixel_offset)));
+      set_scene_state( setup, SETUP_CLEARED );
+
+      setup->clear.flags |= flags;
    }
 }
 
 
 /**
- * Special coefficient setup for gl_FragCoord.
- * X and Y are trivial, though Y has to be inverted for OpenGL.
- * Z and W are copied from posCoef which should have already been computed.
- * We could do a bit less work if we'd examine gl_FragCoord's swizzle mask.
+ * Emit a fence.
  */
-static void
-setup_fragcoord_coeff(struct setup_context *setup, uint slot)
+struct pipe_fence_handle *
+lp_setup_fence( struct setup_context *setup )
 {
-   /*X*/
-   setup->coef.a0[1 + slot][0] = 0;
-   setup->coef.dadx[1 + slot][0] = 1.0;
-   setup->coef.dady[1 + slot][0] = 0.0;
-   /*Y*/
-   setup->coef.a0[1 + slot][1] = 0.0;
-   setup->coef.dadx[1 + slot][1] = 0.0;
-   setup->coef.dady[1 + slot][1] = 1.0;
-   /*Z*/
-   setup->coef.a0[1 + slot][2] = setup->coef.a0[0][2];
-   setup->coef.dadx[1 + slot][2] = setup->coef.dadx[0][2];
-   setup->coef.dady[1 + slot][2] = setup->coef.dady[0][2];
-   /*W*/
-   setup->coef.a0[1 + slot][3] = setup->coef.a0[0][3];
-   setup->coef.dadx[1 + slot][3] = setup->coef.dadx[0][3];
-   setup->coef.dady[1 + slot][3] = setup->coef.dady[0][3];
-}
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
+   const unsigned rank = lp_scene_get_num_bins( scene ); /* xxx */
+   struct lp_fence *fence = lp_fence_create(rank);
 
+   LP_DBG(DEBUG_SETUP, "%s rank %u\n", __FUNCTION__, rank);
 
+   set_scene_state( setup, SETUP_ACTIVE );
 
-/**
- * Compute the setup->coef[] array dadx, dady, a0 values.
- * Must be called after setup->vmin,vmid,vmax,vprovoke are initialized.
- */
-static void setup_tri_coefficients( struct setup_context *setup )
-{
-   struct llvmpipe_context *llvmpipe = setup->llvmpipe;
-   const struct lp_fragment_shader *lpfs = llvmpipe->fs;
-   const struct vertex_info *vinfo = llvmpipe_get_vertex_info(llvmpipe);
-   uint fragSlot;
+   /* insert the fence into all command bins */
+   lp_scene_bin_everywhere( scene,
+			    lp_rast_fence,
+			    lp_rast_arg_fence(fence) );
 
-   /* z and w are done by linear interpolation:
-    */
-   tri_pos_coeff(setup, 0, 2);
-   tri_pos_coeff(setup, 0, 3);
+   return (struct pipe_fence_handle *) fence;
+}
 
-   /* setup interpolation for all the remaining attributes:
-    */
-   for (fragSlot = 0; fragSlot < lpfs->info.num_inputs; fragSlot++) {
-      const uint vertSlot = vinfo->attrib[fragSlot].src_index;
 
-      switch (vinfo->attrib[fragSlot].interp_mode) {
-      case INTERP_CONSTANT:
-         const_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_LINEAR:
-         tri_linear_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_PERSPECTIVE:
-         tri_persp_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_POS:
-         setup_fragcoord_coeff(setup, fragSlot);
-         break;
-      default:
-         assert(0);
-      }
+void 
+lp_setup_set_triangle_state( struct setup_context *setup,
+                             unsigned cull_mode,
+                             boolean ccw_is_frontface,
+                             boolean scissor )
+{
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-      if (lpfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) {
-         setup->coef.a0[1 + fragSlot][0] = 1.0f - setup->facing;
-         setup->coef.dadx[1 + fragSlot][0] = 0.0;
-         setup->coef.dady[1 + fragSlot][0] = 0.0;
-      }
-   }
+   setup->ccw_is_frontface = ccw_is_frontface;
+   setup->cullmode = cull_mode;
+   setup->triangle = first_triangle;
+   setup->scissor_test = scissor;
 }
 
 
 
-static void setup_tri_edges( struct setup_context *setup )
+void
+lp_setup_set_fs_inputs( struct setup_context *setup,
+                        const struct lp_shader_input *input,
+                        unsigned nr )
 {
-   float vmin_x = setup->vmin[0][0] + setup->pixel_offset;
-   float vmid_x = setup->vmid[0][0] + setup->pixel_offset;
-
-   float vmin_y = setup->vmin[0][1] - setup->pixel_offset;
-   float vmid_y = setup->vmid[0][1] - setup->pixel_offset;
-   float vmax_y = setup->vmax[0][1] - setup->pixel_offset;
-
-   setup->emaj.sy = ceilf(vmin_y);
-   setup->emaj.lines = (int) ceilf(vmax_y - setup->emaj.sy);
-   setup->emaj.dxdy = setup->emaj.dx / setup->emaj.dy;
-   setup->emaj.sx = vmin_x + (setup->emaj.sy - vmin_y) * setup->emaj.dxdy;
-
-   setup->etop.sy = ceilf(vmid_y);
-   setup->etop.lines = (int) ceilf(vmax_y - setup->etop.sy);
-   setup->etop.dxdy = setup->etop.dx / setup->etop.dy;
-   setup->etop.sx = vmid_x + (setup->etop.sy - vmid_y) * setup->etop.dxdy;
-
-   setup->ebot.sy = ceilf(vmin_y);
-   setup->ebot.lines = (int) ceilf(vmid_y - setup->ebot.sy);
-   setup->ebot.dxdy = setup->ebot.dx / setup->ebot.dy;
-   setup->ebot.sx = vmin_x + (setup->ebot.sy - vmin_y) * setup->ebot.dxdy;
-}
+   LP_DBG(DEBUG_SETUP, "%s %p %u\n", __FUNCTION__, (void *) input, nr);
 
+   memcpy( setup->fs.input, input, nr * sizeof input[0] );
+   setup->fs.nr_inputs = nr;
+}
 
-/**
- * Render the upper or lower half of a triangle.
- * Scissoring/cliprect is applied here too.
- */
-static void subtriangle( struct setup_context *setup,
-			 struct edge *eleft,
-			 struct edge *eright,
-			 unsigned lines )
+void
+lp_setup_set_fs_functions( struct setup_context *setup,
+                           lp_jit_frag_func jit_function0,
+                           lp_jit_frag_func jit_function1,
+                           boolean opaque )
 {
-   const struct pipe_scissor_state *cliprect = &setup->llvmpipe->cliprect;
-   const int minx = (int) cliprect->minx;
-   const int maxx = (int) cliprect->maxx;
-   const int miny = (int) cliprect->miny;
-   const int maxy = (int) cliprect->maxy;
-   int y, start_y, finish_y;
-   int sy = (int)eleft->sy;
-
-   assert((int)eleft->sy == (int) eright->sy);
-
-   /* clip top/bottom */
-   start_y = sy;
-   if (start_y < miny)
-      start_y = miny;
-
-   finish_y = sy + lines;
-   if (finish_y > maxy)
-      finish_y = maxy;
-
-   start_y -= sy;
-   finish_y -= sy;
-
-   /*
-   debug_printf("%s %d %d\n", __FUNCTION__, start_y, finish_y);
-   */
-
-   for (y = start_y; y < finish_y; y++) {
-
-      /* avoid accumulating adds as floats don't have the precision to
-       * accurately iterate large triangle edges that way.  luckily we
-       * can just multiply these days.
-       *
-       * this is all drowned out by the attribute interpolation anyway.
-       */
-      int left = (int)(eleft->sx + y * eleft->dxdy);
-      int right = (int)(eright->sx + y * eright->dxdy);
-
-      /* clip left/right */
-      if (left < minx)
-         left = minx;
-      if (right > maxx)
-         right = maxx;
-
-      if (left < right) {
-         int _y = sy + y;
-         if (block(_y) != setup->span.y) {
-            flush_spans(setup);
-            setup->span.y = block(_y);
-         }
+   LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) jit_function0);
+   /* FIXME: reference count */
 
-         setup->span.left[_y&1] = left;
-         setup->span.right[_y&1] = right;
-      }
-   }
-
-
-   /* save the values so that emaj can be restarted:
-    */
-   eleft->sx += lines * eleft->dxdy;
-   eright->sx += lines * eright->dxdy;
-   eleft->sy += lines;
-   eright->sy += lines;
+   setup->fs.current.jit_function[0] = jit_function0;
+   setup->fs.current.jit_function[1] = jit_function1;
+   setup->fs.current.opaque = opaque;
+   setup->dirty |= LP_SETUP_NEW_FS;
 }
 
-
-/**
- * Recalculate prim's determinant.  This is needed as we don't have
- * get this information through the vbuf_render interface & we must
- * calculate it here.
- */
-static float
-calc_det( const float (*v0)[4],
-          const float (*v1)[4],
-          const float (*v2)[4] )
+void
+lp_setup_set_fs_constants(struct setup_context *setup,
+                          struct pipe_buffer *buffer)
 {
-   /* edge vectors e = v0 - v2, f = v1 - v2 */
-   const float ex = v0[0][0] - v2[0][0];
-   const float ey = v0[0][1] - v2[0][1];
-   const float fx = v1[0][0] - v2[0][0];
-   const float fy = v1[0][1] - v2[0][1];
-
-   /* det = cross(e,f).z */
-   return ex * fy - ey * fx;
+   LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) buffer);
+
+   pipe_buffer_reference(&setup->constants.current, buffer);
+
+   setup->dirty |= LP_SETUP_NEW_CONSTANTS;
 }
 
 
-/**
- * Do setup for triangle rasterization, then render the triangle.
- */
-void llvmpipe_setup_tri( struct setup_context *setup,
-                const float (*v0)[4],
-                const float (*v1)[4],
-                const float (*v2)[4] )
+void
+lp_setup_set_alpha_ref_value( struct setup_context *setup,
+                              float alpha_ref_value )
 {
-   float det;
-
-#if DEBUG_VERTS
-   debug_printf("Setup triangle:\n");
-   print_vertex(setup, v0);
-   print_vertex(setup, v1);
-   print_vertex(setup, v2);
-#endif
+   LP_DBG(DEBUG_SETUP, "%s %f\n", __FUNCTION__, alpha_ref_value);
 
-   if (setup->llvmpipe->no_rast)
-      return;
-   
-   det = calc_det(v0, v1, v2);
-   /*
-   debug_printf("%s\n", __FUNCTION__ );
-   */
+   if(setup->fs.current.jit_context.alpha_ref_value != alpha_ref_value) {
+      setup->fs.current.jit_context.alpha_ref_value = alpha_ref_value;
+      setup->dirty |= LP_SETUP_NEW_FS;
+   }
+}
 
-#if DEBUG_FRAGS
-   setup->numFragsEmitted = 0;
-   setup->numFragsWritten = 0;
-#endif
+void
+lp_setup_set_blend_color( struct setup_context *setup,
+                          const struct pipe_blend_color *blend_color )
+{
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-   if (cull_tri( setup, det ))
-      return;
+   assert(blend_color);
 
-   if (!setup_sort_vertices( setup, det, v0, v1, v2 ))
-      return;
-   setup_tri_coefficients( setup );
-   setup_tri_edges( setup );
+   if(memcmp(&setup->blend_color.current, blend_color, sizeof *blend_color) != 0) {
+      memcpy(&setup->blend_color.current, blend_color, sizeof *blend_color);
+      setup->dirty |= LP_SETUP_NEW_BLEND_COLOR;
+   }
+}
 
-   assert(setup->llvmpipe->reduced_prim == PIPE_PRIM_TRIANGLES);
 
-   setup->span.y = 0;
-   setup->span.right[0] = 0;
-   setup->span.right[1] = 0;
-   /*   setup->span.z_mode = tri_z_mode( setup->ctx ); */
+void
+lp_setup_set_scissor( struct setup_context *setup,
+                      const struct pipe_scissor_state *scissor )
+{
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-   /*   init_constant_attribs( setup ); */
+   assert(scissor);
 
-   if (setup->oneoverarea < 0.0) {
-      /* emaj on left:
-       */
-      subtriangle( setup, &setup->emaj, &setup->ebot, setup->ebot.lines );
-      subtriangle( setup, &setup->emaj, &setup->etop, setup->etop.lines );
-   }
-   else {
-      /* emaj on right:
-       */
-      subtriangle( setup, &setup->ebot, &setup->emaj, setup->ebot.lines );
-      subtriangle( setup, &setup->etop, &setup->emaj, setup->etop.lines );
+   if (memcmp(&setup->scissor.current, scissor, sizeof(*scissor)) != 0) {
+      setup->scissor.current = *scissor; /* struct copy */
+      setup->dirty |= LP_SETUP_NEW_SCISSOR;
    }
-
-   flush_spans( setup );
-
-#if DEBUG_FRAGS
-   printf("Tri: %u frags emitted, %u written\n",
-          setup->numFragsEmitted,
-          setup->numFragsWritten);
-#endif
 }
 
 
-
-/**
- * Compute a0, dadx and dady for a linearly interpolated coefficient,
- * for a line.
- */
-static void
-linear_pos_coeff(struct setup_context *setup,
-                 uint vertSlot, uint i)
+void 
+lp_setup_set_flatshade_first( struct setup_context *setup,
+                              boolean flatshade_first )
 {
-   const float da = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i];
-   const float dadx = da * setup->emaj.dx * setup->oneoverarea;
-   const float dady = da * setup->emaj.dy * setup->oneoverarea;
-   setup->coef.dadx[0][i] = dadx;
-   setup->coef.dady[0][i] = dady;
-   setup->coef.a0[0][i] = (setup->vmin[vertSlot][i] -
-                           (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                            dady * (setup->vmin[0][1] - setup->pixel_offset)));
+   setup->flatshade_first = flatshade_first;
 }
 
 
-/**
- * Compute a0, dadx and dady for a linearly interpolated coefficient,
- * for a line.
- */
-static void
-line_linear_coeff(struct setup_context *setup,
-                  unsigned attrib,
-                  uint vertSlot)
+void 
+lp_setup_set_vertex_info( struct setup_context *setup,
+                          struct vertex_info *vertex_info )
 {
-   unsigned i;
-   for (i = 0; i < NUM_CHANNELS; ++i) {
-      const float da = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i];
-      const float dadx = da * setup->emaj.dx * setup->oneoverarea;
-      const float dady = da * setup->emaj.dy * setup->oneoverarea;
-      setup->coef.dadx[1 + attrib][i] = dadx;
-      setup->coef.dady[1 + attrib][i] = dady;
-      setup->coef.a0[1 + attrib][i] = (setup->vmin[vertSlot][i] -
-                     (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                      dady * (setup->vmin[0][1] - setup->pixel_offset)));
-   }
+   /* XXX: just silently holding onto the pointer:
+    */
+   setup->vertex_info = vertex_info;
 }
 
 
 /**
- * Compute a0, dadx and dady for a perspective-corrected interpolant,
- * for a line.
+ * Called during state validation when LP_NEW_TEXTURE is set.
  */
-static void
-line_persp_coeff(struct setup_context *setup,
-                 unsigned attrib,
-                 uint vertSlot)
+void
+lp_setup_set_sampler_textures( struct setup_context *setup,
+                               unsigned num, struct pipe_texture **texture)
 {
    unsigned i;
-   for (i = 0; i < NUM_CHANNELS; ++i) {
-      /* XXX double-check/verify this arithmetic */
-      const float a0 = setup->vmin[vertSlot][i] * setup->vmin[0][3];
-      const float a1 = setup->vmax[vertSlot][i] * setup->vmax[0][3];
-      const float da = a1 - a0;
-      const float dadx = da * setup->emaj.dx * setup->oneoverarea;
-      const float dady = da * setup->emaj.dy * setup->oneoverarea;
-      setup->coef.dadx[1 + attrib][i] = dadx;
-      setup->coef.dady[1 + attrib][i] = dady;
-      setup->coef.a0[1 + attrib][i] = (setup->vmin[vertSlot][i] -
-                     (dadx * (setup->vmin[0][0] - setup->pixel_offset) +
-                      dady * (setup->vmin[0][1] - setup->pixel_offset)));
+
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
+
+   assert(num <= PIPE_MAX_SAMPLERS);
+
+   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
+      struct pipe_texture *tex = i < num ? texture[i] : NULL;
+
+      if(tex) {
+         struct llvmpipe_texture *lp_tex = llvmpipe_texture(tex);
+         struct lp_jit_texture *jit_tex;
+         jit_tex = &setup->fs.current.jit_context.textures[i];
+         jit_tex->width = tex->width0;
+         jit_tex->height = tex->height0;
+         jit_tex->stride = lp_tex->stride[0];
+         if(!lp_tex->dt)
+            jit_tex->data = lp_tex->data;
+         else
+            /* FIXME: map the rendertarget */
+            assert(0);
+
+         /* the scene references this texture */
+         {
+            struct lp_scene *scene = lp_setup_get_current_scene(setup);
+            lp_scene_texture_reference(scene, tex);
+         }
+      }
    }
+
+   setup->dirty |= LP_SETUP_NEW_FS;
 }
 
 
 /**
- * Compute the setup->coef[] array dadx, dady, a0 values.
- * Must be called after setup->vmin,vmax are initialized.
+ * Is the given texture referenced by any scene?
+ * Note: we have to check all scenes including any scenes currently
+ * being rendered and the current scene being built.
  */
-static INLINE boolean
-setup_line_coefficients(struct setup_context *setup,
-                        const float (*v0)[4],
-                        const float (*v1)[4])
+unsigned
+lp_setup_is_texture_referenced( const struct setup_context *setup,
+                                const struct pipe_texture *texture )
 {
-   struct llvmpipe_context *llvmpipe = setup->llvmpipe;
-   const struct lp_fragment_shader *lpfs = llvmpipe->fs;
-   const struct vertex_info *vinfo = llvmpipe_get_vertex_info(llvmpipe);
-   uint fragSlot;
-   float area;
-
-   /* use setup->vmin, vmax to point to vertices */
-   if (llvmpipe->rasterizer->flatshade_first)
-      setup->vprovoke = v0;
-   else
-      setup->vprovoke = v1;
-   setup->vmin = v0;
-   setup->vmax = v1;
-
-   setup->emaj.dx = setup->vmax[0][0] - setup->vmin[0][0];
-   setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1];
-
-   /* NOTE: this is not really area but something proportional to it */
-   area = setup->emaj.dx * setup->emaj.dx + setup->emaj.dy * setup->emaj.dy;
-   if (area == 0.0f || util_is_inf_or_nan(area))
-      return FALSE;
-   setup->oneoverarea = 1.0f / area;
-
-   /* z and w are done by linear interpolation:
-    */
-   linear_pos_coeff(setup, 0, 2);
-   linear_pos_coeff(setup, 0, 3);
-
-   /* setup interpolation for all the remaining attributes:
-    */
-   for (fragSlot = 0; fragSlot < lpfs->info.num_inputs; fragSlot++) {
-      const uint vertSlot = vinfo->attrib[fragSlot].src_index;
-
-      switch (vinfo->attrib[fragSlot].interp_mode) {
-      case INTERP_CONSTANT:
-         const_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_LINEAR:
-         line_linear_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_PERSPECTIVE:
-         line_persp_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_POS:
-         setup_fragcoord_coeff(setup, fragSlot);
-         break;
-      default:
-         assert(0);
-      }
+   unsigned i;
 
-      if (lpfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) {
-         setup->coef.a0[1 + fragSlot][0] = 1.0f - setup->facing;
-         setup->coef.dadx[1 + fragSlot][0] = 0.0;
-         setup->coef.dady[1 + fragSlot][0] = 0.0;
-      }
+   /* check the render targets */
+   for (i = 0; i < setup->fb.nr_cbufs; i++) {
+      if (setup->fb.cbufs[i]->texture == texture)
+         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
+   }
+   if (setup->fb.zsbuf && setup->fb.zsbuf->texture == texture) {
+      return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
    }
-   return TRUE;
-}
-
 
-/**
- * Plot a pixel in a line segment.
- */
-static INLINE void
-plot(struct setup_context *setup, int x, int y)
-{
-   const int iy = y & 1;
-   const int ix = x & 1;
-   const int quadX = x - ix;
-   const int quadY = y - iy;
-   const int mask = (1 << ix) << (2 * iy);
-
-   if (quadX != setup->quad[0].input.x0 ||
-       quadY != setup->quad[0].input.y0)
-   {
-      /* flush prev quad, start new quad */
-
-      if (setup->quad[0].input.x0 != -1)
-         clip_emit_quad( setup, &setup->quad[0] );
-
-      setup->quad[0].input.x0 = quadX;
-      setup->quad[0].input.y0 = quadY;
-      setup->quad[0].inout.mask = 0x0;
+   /* check textures referenced by the scene */
+   for (i = 0; i < Elements(setup->scenes); i++) {
+      if (lp_scene_is_textured_referenced(setup->scenes[i], texture)) {
+         return PIPE_REFERENCED_FOR_READ;
+      }
    }
 
-   setup->quad[0].inout.mask |= mask;
+   return PIPE_UNREFERENCED;
 }
 
 
 /**
- * Do setup for line rasterization, then render the line.
- * Single-pixel width, no stipple, etc.  We rely on the 'draw' module
- * to handle stippling and wide lines.
+ * Called by vbuf code when we're about to draw something.
  */
 void
-llvmpipe_setup_line(struct setup_context *setup,
-           const float (*v0)[4],
-           const float (*v1)[4])
+lp_setup_update_state( struct setup_context *setup )
 {
-   int x0 = (int) v0[0][0];
-   int x1 = (int) v1[0][0];
-   int y0 = (int) v0[0][1];
-   int y1 = (int) v1[0][1];
-   int dx = x1 - x0;
-   int dy = y1 - y0;
-   int xstep, ystep;
-
-#if DEBUG_VERTS
-   debug_printf("Setup line:\n");
-   print_vertex(setup, v0);
-   print_vertex(setup, v1);
-#endif
-
-   if (setup->llvmpipe->no_rast)
-      return;
-
-   if (dx == 0 && dy == 0)
-      return;
+   struct lp_scene *scene = lp_setup_get_current_scene(setup);
 
-   if (!setup_line_coefficients(setup, v0, v1))
-      return;
-
-   assert(v0[0][0] < 1.0e9);
-   assert(v0[0][1] < 1.0e9);
-   assert(v1[0][0] < 1.0e9);
-   assert(v1[0][1] < 1.0e9);
-
-   if (dx < 0) {
-      dx = -dx;   /* make positive */
-      xstep = -1;
-   }
-   else {
-      xstep = 1;
-   }
+   LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
-   if (dy < 0) {
-      dy = -dy;   /* make positive */
-      ystep = -1;
-   }
-   else {
-      ystep = 1;
-   }
+   assert(setup->fs.current.jit_function);
 
-   assert(dx >= 0);
-   assert(dy >= 0);
-   assert(setup->llvmpipe->reduced_prim == PIPE_PRIM_LINES);
+   if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
+      uint8_t *stored;
+      unsigned i, j;
 
-   setup->quad[0].input.x0 = setup->quad[0].input.y0 = -1;
-   setup->quad[0].inout.mask = 0x0;
+      stored = lp_scene_alloc_aligned(scene, 4 * 16, 16);
 
-   /* XXX temporary: set coverage to 1.0 so the line appears
-    * if AA mode happens to be enabled.
-    */
-   setup->quad[0].input.coverage[0] =
-   setup->quad[0].input.coverage[1] =
-   setup->quad[0].input.coverage[2] =
-   setup->quad[0].input.coverage[3] = 1.0;
-
-   if (dx > dy) {
-      /*** X-major line ***/
-      int i;
-      const int errorInc = dy + dy;
-      int error = errorInc - dx;
-      const int errorDec = error - dx;
-
-      for (i = 0; i < dx; i++) {
-         plot(setup, x0, y0);
-
-         x0 += xstep;
-         if (error < 0) {
-            error += errorInc;
-         }
-         else {
-            error += errorDec;
-            y0 += ystep;
-         }
-      }
-   }
-   else {
-      /*** Y-major line ***/
-      int i;
-      const int errorInc = dx + dx;
-      int error = errorInc - dy;
-      const int errorDec = error - dy;
-
-      for (i = 0; i < dy; i++) {
-         plot(setup, x0, y0);
-
-         y0 += ystep;
-         if (error < 0) {
-            error += errorInc;
-         }
-         else {
-            error += errorDec;
-            x0 += xstep;
-         }
+      /* smear each blend color component across 16 ubyte elements */
+      for (i = 0; i < 4; ++i) {
+         uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
+         for (j = 0; j < 16; ++j)
+            stored[i*16 + j] = c;
       }
-   }
 
-   /* draw final quad */
-   if (setup->quad[0].inout.mask) {
-      clip_emit_quad( setup, &setup->quad[0] );
+      setup->blend_color.stored = stored;
+
+      setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
+      setup->dirty |= LP_SETUP_NEW_FS;
    }
-}
 
+   if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
+      float *stored;
 
-static void
-point_persp_coeff(struct setup_context *setup,
-                  const float (*vert)[4],
-                  unsigned attrib,
-                  uint vertSlot)
-{
-   unsigned i;
-   for(i = 0; i < NUM_CHANNELS; ++i) {
-      setup->coef.dadx[1 + attrib][i] = 0.0F;
-      setup->coef.dady[1 + attrib][i] = 0.0F;
-      setup->coef.a0[1 + attrib][i] = vert[vertSlot][i] * vert[0][3];
-   }
-}
+      stored = lp_scene_alloc_aligned(scene, 4 * sizeof(int32_t), 16);
 
+      stored[0] = (float) setup->scissor.current.minx;
+      stored[1] = (float) setup->scissor.current.miny;
+      stored[2] = (float) setup->scissor.current.maxx;
+      stored[3] = (float) setup->scissor.current.maxy;
 
-/**
- * Do setup for point rasterization, then render the point.
- * Round or square points...
- * XXX could optimize a lot for 1-pixel points.
- */
-void
-llvmpipe_setup_point( struct setup_context *setup,
-             const float (*v0)[4] )
-{
-   struct llvmpipe_context *llvmpipe = setup->llvmpipe;
-   const struct lp_fragment_shader *lpfs = llvmpipe->fs;
-   const int sizeAttr = setup->llvmpipe->psize_slot;
-   const float size
-      = sizeAttr > 0 ? v0[sizeAttr][0]
-      : setup->llvmpipe->rasterizer->point_size;
-   const float halfSize = 0.5F * size;
-   const boolean round = (boolean) setup->llvmpipe->rasterizer->point_smooth;
-   const float x = v0[0][0];  /* Note: data[0] is always position */
-   const float y = v0[0][1];
-   const struct vertex_info *vinfo = llvmpipe_get_vertex_info(llvmpipe);
-   uint fragSlot;
-
-#if DEBUG_VERTS
-   debug_printf("Setup point:\n");
-   print_vertex(setup, v0);
-#endif
-
-   if (llvmpipe->no_rast)
-      return;
+      setup->scissor.stored = stored;
 
-   assert(setup->llvmpipe->reduced_prim == PIPE_PRIM_POINTS);
-
-   /* For points, all interpolants are constant-valued.
-    * However, for point sprites, we'll need to setup texcoords appropriately.
-    * XXX: which coefficients are the texcoords???
-    * We may do point sprites as textured quads...
-    *
-    * KW: We don't know which coefficients are texcoords - ultimately
-    * the choice of what interpolation mode to use for each attribute
-    * should be determined by the fragment program, using
-    * per-attribute declaration statements that include interpolation
-    * mode as a parameter.  So either the fragment program will have
-    * to be adjusted for pointsprite vs normal point behaviour, or
-    * otherwise a special interpolation mode will have to be defined
-    * which matches the required behaviour for point sprites.  But -
-    * the latter is not a feature of normal hardware, and as such
-    * probably should be ruled out on that basis.
-    */
-   setup->vprovoke = v0;
+      setup->fs.current.jit_context.scissor_xmin = stored[0];
+      setup->fs.current.jit_context.scissor_ymin = stored[1];
+      setup->fs.current.jit_context.scissor_xmax = stored[2];
+      setup->fs.current.jit_context.scissor_ymax = stored[3];
 
-   /* setup Z, W */
-   const_pos_coeff(setup, 0, 2);
-   const_pos_coeff(setup, 0, 3);
+      setup->dirty |= LP_SETUP_NEW_FS;
+   }
 
-   for (fragSlot = 0; fragSlot < lpfs->info.num_inputs; fragSlot++) {
-      const uint vertSlot = vinfo->attrib[fragSlot].src_index;
+   if(setup->dirty & LP_SETUP_NEW_CONSTANTS) {
+      struct pipe_buffer *buffer = setup->constants.current;
 
-      switch (vinfo->attrib[fragSlot].interp_mode) {
-      case INTERP_CONSTANT:
-         /* fall-through */
-      case INTERP_LINEAR:
-         const_coeff(setup, fragSlot, vertSlot);
-         break;
-      case INTERP_PERSPECTIVE:
-         point_persp_coeff(setup, setup->vprovoke, fragSlot, vertSlot);
-         break;
-      case INTERP_POS:
-         setup_fragcoord_coeff(setup, fragSlot);
-         break;
-      default:
-         assert(0);
-      }
+      if(buffer) {
+         unsigned current_size = buffer->size;
+         const void *current_data = llvmpipe_buffer(buffer)->data;
 
-      if (lpfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) {
-         setup->coef.a0[1 + fragSlot][0] = 1.0f - setup->facing;
-         setup->coef.dadx[1 + fragSlot][0] = 0.0;
-         setup->coef.dady[1 + fragSlot][0] = 0.0;
-      }
-   }
+         /* TODO: copy only the actually used constants? */
 
+         if(setup->constants.stored_size != current_size ||
+            !setup->constants.stored_data ||
+            memcmp(setup->constants.stored_data,
+                   current_data,
+                   current_size) != 0) {
+            void *stored;
 
-   if (halfSize <= 0.5 && !round) {
-      /* special case for 1-pixel points */
-      const int ix = ((int) x) & 1;
-      const int iy = ((int) y) & 1;
-      setup->quad[0].input.x0 = (int) x - ix;
-      setup->quad[0].input.y0 = (int) y - iy;
-      setup->quad[0].inout.mask = (1 << ix) << (2 * iy);
-      clip_emit_quad( setup, &setup->quad[0] );
-   }
-   else {
-      if (round) {
-         /* rounded points */
-         const int ixmin = block((int) (x - halfSize));
-         const int ixmax = block((int) (x + halfSize));
-         const int iymin = block((int) (y - halfSize));
-         const int iymax = block((int) (y + halfSize));
-         const float rmin = halfSize - 0.7071F;  /* 0.7071 = sqrt(2)/2 */
-         const float rmax = halfSize + 0.7071F;
-         const float rmin2 = MAX2(0.0F, rmin * rmin);
-         const float rmax2 = rmax * rmax;
-         const float cscale = 1.0F / (rmax2 - rmin2);
-         int ix, iy;
-
-         for (iy = iymin; iy <= iymax; iy += 2) {
-            for (ix = ixmin; ix <= ixmax; ix += 2) {
-               float dx, dy, dist2, cover;
-
-               setup->quad[0].inout.mask = 0x0;
-
-               dx = (ix + 0.5f) - x;
-               dy = (iy + 0.5f) - y;
-               dist2 = dx * dx + dy * dy;
-               if (dist2 <= rmax2) {
-                  cover = 1.0F - (dist2 - rmin2) * cscale;
-                  setup->quad[0].input.coverage[QUAD_TOP_LEFT] = MIN2(cover, 1.0f);
-                  setup->quad[0].inout.mask |= MASK_TOP_LEFT;
-               }
-
-               dx = (ix + 1.5f) - x;
-               dy = (iy + 0.5f) - y;
-               dist2 = dx * dx + dy * dy;
-               if (dist2 <= rmax2) {
-                  cover = 1.0F - (dist2 - rmin2) * cscale;
-                  setup->quad[0].input.coverage[QUAD_TOP_RIGHT] = MIN2(cover, 1.0f);
-                  setup->quad[0].inout.mask |= MASK_TOP_RIGHT;
-               }
-
-               dx = (ix + 0.5f) - x;
-               dy = (iy + 1.5f) - y;
-               dist2 = dx * dx + dy * dy;
-               if (dist2 <= rmax2) {
-                  cover = 1.0F - (dist2 - rmin2) * cscale;
-                  setup->quad[0].input.coverage[QUAD_BOTTOM_LEFT] = MIN2(cover, 1.0f);
-                  setup->quad[0].inout.mask |= MASK_BOTTOM_LEFT;
-               }
-
-               dx = (ix + 1.5f) - x;
-               dy = (iy + 1.5f) - y;
-               dist2 = dx * dx + dy * dy;
-               if (dist2 <= rmax2) {
-                  cover = 1.0F - (dist2 - rmin2) * cscale;
-                  setup->quad[0].input.coverage[QUAD_BOTTOM_RIGHT] = MIN2(cover, 1.0f);
-                  setup->quad[0].inout.mask |= MASK_BOTTOM_RIGHT;
-               }
-
-               if (setup->quad[0].inout.mask) {
-                  setup->quad[0].input.x0 = ix;
-                  setup->quad[0].input.y0 = iy;
-                  clip_emit_quad( setup, &setup->quad[0] );
-               }
+            stored = lp_scene_alloc(scene, current_size);
+            if(stored) {
+               memcpy(stored,
+                      current_data,
+                      current_size);
+               setup->constants.stored_size = current_size;
+               setup->constants.stored_data = stored;
             }
          }
       }
       else {
-         /* square points */
-         const int xmin = (int) (x + 0.75 - halfSize);
-         const int ymin = (int) (y + 0.25 - halfSize);
-         const int xmax = xmin + (int) size;
-         const int ymax = ymin + (int) size;
-         /* XXX could apply scissor to xmin,ymin,xmax,ymax now */
-         const int ixmin = block(xmin);
-         const int ixmax = block(xmax - 1);
-         const int iymin = block(ymin);
-         const int iymax = block(ymax - 1);
-         int ix, iy;
-
-         /*
-         debug_printf("(%f, %f) -> X:%d..%d Y:%d..%d\n", x, y, xmin, xmax,ymin,ymax);
-         */
-         for (iy = iymin; iy <= iymax; iy += 2) {
-            uint rowMask = 0xf;
-            if (iy < ymin) {
-               /* above the top edge */
-               rowMask &= (MASK_BOTTOM_LEFT | MASK_BOTTOM_RIGHT);
-            }
-            if (iy + 1 >= ymax) {
-               /* below the bottom edge */
-               rowMask &= (MASK_TOP_LEFT | MASK_TOP_RIGHT);
-            }
+         setup->constants.stored_size = 0;
+         setup->constants.stored_data = NULL;
+      }
 
-            for (ix = ixmin; ix <= ixmax; ix += 2) {
-               uint mask = rowMask;
-
-               if (ix < xmin) {
-                  /* fragment is past left edge of point, turn off left bits */
-                  mask &= (MASK_BOTTOM_RIGHT | MASK_TOP_RIGHT);
-               }
-               if (ix + 1 >= xmax) {
-                  /* past the right edge */
-                  mask &= (MASK_BOTTOM_LEFT | MASK_TOP_LEFT);
-               }
-
-               setup->quad[0].inout.mask = mask;
-               setup->quad[0].input.x0 = ix;
-               setup->quad[0].input.y0 = iy;
-               clip_emit_quad( setup, &setup->quad[0] );
-            }
+      setup->fs.current.jit_context.constants = setup->constants.stored_data;
+      setup->dirty |= LP_SETUP_NEW_FS;
+   }
+
+
+   if(setup->dirty & LP_SETUP_NEW_FS) {
+      if(!setup->fs.stored ||
+         memcmp(setup->fs.stored,
+                &setup->fs.current,
+                sizeof setup->fs.current) != 0) {
+         /* The fs state that's been stored in the scene is different from
+          * the new, current state.  So allocate a new lp_rast_state object
+          * and append it to the bin's setup data buffer.
+          */
+         struct lp_rast_state *stored =
+            (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
+         if(stored) {
+            memcpy(stored,
+                   &setup->fs.current,
+                   sizeof setup->fs.current);
+            setup->fs.stored = stored;
+
+            /* put the state-set command into all bins */
+            lp_scene_bin_state_command( scene,
+					lp_rast_set_state, 
+					lp_rast_arg_state(setup->fs.stored) );
          }
       }
    }
+
+   setup->dirty = 0;
+
+   assert(setup->fs.stored);
 }
 
-void llvmpipe_setup_prepare( struct setup_context *setup )
+
+
+/* Only caller is lp_setup_vbuf_destroy()
+ */
+void 
+lp_setup_destroy( struct setup_context *setup )
 {
-   struct llvmpipe_context *lp = setup->llvmpipe;
+   reset_context( setup );
 
-   if (lp->dirty) {
-      llvmpipe_update_derived(lp);
-   }
+   pipe_buffer_reference(&setup->constants.current, NULL);
 
-   if (lp->reduced_api_prim == PIPE_PRIM_TRIANGLES &&
-       lp->rasterizer->fill_cw == PIPE_POLYGON_MODE_FILL &&
-       lp->rasterizer->fill_ccw == PIPE_POLYGON_MODE_FILL) {
-      /* we'll do culling */
-      setup->winding = lp->rasterizer->cull_mode;
-   }
-   else {
-      /* 'draw' will do culling */
-      setup->winding = PIPE_WINDING_NONE;
+   /* free the scenes in the 'empty' queue */
+   while (1) {
+      struct lp_scene *scene = lp_scene_dequeue(setup->empty_scenes, FALSE);
+      if (!scene)
+         break;
+      lp_scene_destroy(scene);
    }
-}
-
 
+   lp_rast_destroy( setup->rast );
 
-void llvmpipe_setup_destroy_context( struct setup_context *setup )
-{
-   align_free( setup );
+   FREE( setup );
 }
 
 
 /**
- * Create a new primitive setup/render stage.
+ * Create a new primitive tiling engine.  Plug it into the backend of
+ * the draw module.  Currently also creates a rasterizer to use with
+ * it.
  */
-struct setup_context *llvmpipe_setup_create_context( struct llvmpipe_context *llvmpipe )
+struct setup_context *
+lp_setup_create( struct pipe_screen *screen,
+                 struct draw_context *draw )
 {
-   struct setup_context *setup;
    unsigned i;
+   struct setup_context *setup = CALLOC_STRUCT(setup_context);
 
-   setup = align_malloc(sizeof(struct setup_context), 16);
    if (!setup)
       return NULL;
 
-   memset(setup, 0, sizeof *setup);
-   setup->llvmpipe = llvmpipe;
+   lp_setup_init_vbuf(setup);
+
+   setup->empty_scenes = lp_scene_queue_create();
+   if (!setup->empty_scenes)
+      goto fail;
 
-   for (i = 0; i < MAX_QUADS; i++) {
-      setup->quad[i].coef = &setup->coef;
+   setup->rast = lp_rast_create( screen, setup->empty_scenes );
+   if (!setup->rast) 
+      goto fail;
+
+   setup->vbuf = draw_vbuf_stage(draw, &setup->base);
+   if (!setup->vbuf)
+      goto fail;
+
+   draw_set_rasterize_stage(draw, setup->vbuf);
+   draw_set_render(draw, &setup->base);
+
+   /* create some empty scenes */
+   for (i = 0; i < MAX_SCENES; i++) {
+      setup->scenes[i] = lp_scene_create();
+      lp_scene_enqueue(setup->empty_scenes, setup->scenes[i]);
    }
 
-   setup->span.left[0] = 1000000;     /* greater than right[0] */
-   setup->span.left[1] = 1000000;     /* greater than right[1] */
+   setup->triangle = first_triangle;
+   setup->line     = first_line;
+   setup->point    = first_point;
+   
+   setup->dirty = ~0;
 
    return setup;
+
+fail:
+   if (setup->rast)
+      lp_rast_destroy( setup->rast );
+   
+   if (setup->vbuf)
+      ;
+
+   if (setup->empty_scenes)
+      lp_scene_queue_destroy(setup->empty_scenes);
+
+   FREE(setup);
+   return NULL;
 }