Mesa (gallium-llvmpipe): llvmpipe: Squash the quad pipeline.

Jose Fonseca jrfonseca at kemper.freedesktop.org
Sat Aug 22 22:02:48 UTC 2009


Module: Mesa
Branch: gallium-llvmpipe
Commit: c14f14b662dd5bd548073f2b1f62a9082c5e0521
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c14f14b662dd5bd548073f2b1f62a9082c5e0521

Author: José Fonseca <jfonseca at vmware.com>
Date:   Sat Aug 22 23:01:58 2009 +0100

llvmpipe: Squash the quad pipeline.

It had been reduced to one fixed stage.

---

 src/gallium/drivers/llvmpipe/Makefile           |    2 -
 src/gallium/drivers/llvmpipe/SConscript         |    2 -
 src/gallium/drivers/llvmpipe/lp_context.c       |   28 +++-
 src/gallium/drivers/llvmpipe/lp_context.h       |   12 +-
 src/gallium/drivers/llvmpipe/lp_quad_fs.c       |  222 -----------------------
 src/gallium/drivers/llvmpipe/lp_quad_pipe.c     |   38 ----
 src/gallium/drivers/llvmpipe/lp_quad_pipe.h     |   62 -------
 src/gallium/drivers/llvmpipe/lp_setup.c         |   88 ++++++++-
 src/gallium/drivers/llvmpipe/lp_state_derived.c |    4 -
 src/gallium/drivers/llvmpipe/lp_state_surface.c |   13 ++
 10 files changed, 120 insertions(+), 351 deletions(-)

diff --git a/src/gallium/drivers/llvmpipe/Makefile b/src/gallium/drivers/llvmpipe/Makefile
index 102227f..9290720 100644
--- a/src/gallium/drivers/llvmpipe/Makefile
+++ b/src/gallium/drivers/llvmpipe/Makefile
@@ -30,8 +30,6 @@ C_SOURCES = \
 	lp_prim_setup.c \
 	lp_prim_vbuf.c \
 	lp_setup.c \
-	lp_quad_pipe.c \
-	lp_quad_fs.c \
 	lp_query.c \
 	lp_screen.c \
 	lp_state_blend.c \
diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript
index 84fd8fe..4161edb 100644
--- a/src/gallium/drivers/llvmpipe/SConscript
+++ b/src/gallium/drivers/llvmpipe/SConscript
@@ -34,8 +34,6 @@ llvmpipe = env.ConvenienceLibrary(
 		'lp_prim_setup.c',
 		'lp_prim_vbuf.c',
 		'lp_setup.c',
-		'lp_quad_pipe.c',
-		'lp_quad_fs.c',
 		'lp_query.c',
 		'lp_screen.c',
 		'lp_state_blend.c',
diff --git a/src/gallium/drivers/llvmpipe/lp_context.c b/src/gallium/drivers/llvmpipe/lp_context.c
index b9fd681..233d1df 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.c
+++ b/src/gallium/drivers/llvmpipe/lp_context.c
@@ -55,11 +55,24 @@
 void
 llvmpipe_map_transfers(struct llvmpipe_context *lp)
 {
+   struct pipe_screen *screen = lp->pipe.screen;
+   struct pipe_surface *zsbuf = lp->framebuffer.zsbuf;
    unsigned i;
 
    for (i = 0; i < lp->framebuffer.nr_cbufs; i++) {
       lp_tile_cache_map_transfers(lp->cbuf_cache[i]);
    }
+
+   if(zsbuf) {
+      if(!lp->zsbuf_transfer)
+         lp->zsbuf_transfer = screen->get_tex_transfer(screen, zsbuf->texture,
+                                                       zsbuf->face, zsbuf->level, zsbuf->zslice,
+                                                       PIPE_TRANSFER_READ_WRITE,
+                                                       0, 0, zsbuf->width, zsbuf->height);
+      if(lp->zsbuf_transfer && !lp->zsbuf_map)
+         lp->zsbuf_map = screen->transfer_map(screen, lp->zsbuf_transfer);
+
+   }
 }
 
 
@@ -74,6 +87,15 @@ llvmpipe_unmap_transfers(struct llvmpipe_context *lp)
    for (i = 0; i < lp->framebuffer.nr_cbufs; i++) {
       lp_tile_cache_unmap_transfers(lp->cbuf_cache[i]);
    }
+
+   if(lp->zsbuf_transfer) {
+      struct pipe_screen *screen = lp->pipe.screen;
+
+      if(lp->zsbuf_map) {
+         screen->transfer_unmap(screen, lp->zsbuf_transfer);
+         lp->zsbuf_map = NULL;
+      }
+   }
 }
 
 
@@ -85,8 +107,6 @@ static void llvmpipe_destroy( struct pipe_context *pipe )
    if (llvmpipe->draw)
       draw_destroy( llvmpipe->draw );
 
-      llvmpipe->quad.shade->destroy( llvmpipe->quad.shade );
-
    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
       lp_destroy_tile_cache(llvmpipe->cbuf_cache[i]);
 
@@ -205,7 +225,6 @@ llvmpipe_create( struct pipe_screen *screen )
 
    /*
     * Alloc caches for accessing drawing surfaces and textures.
-    * Must be before quad stage setup!
     */
    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
       llvmpipe->cbuf_cache[i] = lp_create_tile_cache( screen );
@@ -214,9 +233,6 @@ llvmpipe_create( struct pipe_screen *screen )
       llvmpipe->tex_cache[i] = lp_create_tex_tile_cache( screen );
 
 
-   /* setup quad rendering stages */
-      llvmpipe->quad.shade = lp_quad_shade_stage(llvmpipe);
-
    /* vertex shader samplers */
    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
       llvmpipe->tgsi.vert_samplers[i].base.get_samples = lp_get_samples;
diff --git a/src/gallium/drivers/llvmpipe/lp_context.h b/src/gallium/drivers/llvmpipe/lp_context.h
index 9de21d0..1d0896a 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_context.h
@@ -35,7 +35,6 @@
 
 #include "draw/draw_vertex.h"
 
-#include "lp_quad_pipe.h"
 #include "lp_tex_sample.h"
 
 
@@ -114,13 +113,6 @@ struct llvmpipe_context {
 
    unsigned line_stipple_counter;
 
-   /** Software quad rendering pipeline */
-   struct {
-      struct quad_stage *shade;
-
-      struct quad_stage *first; /**< points to one of the above stages */
-   } quad;
-
    /** TGSI exec things */
    struct {
       struct lp_shader_sampler vert_samplers[PIPE_MAX_SAMPLERS];
@@ -139,6 +131,10 @@ struct llvmpipe_context {
    
    struct llvmpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
    
+   /* TODO: we shouldn't be using external interfaces internally like this */
+   struct pipe_transfer *zsbuf_transfer;
+   uint8_t *zsbuf_map;
+
    unsigned tex_timestamp;
    struct llvmpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_fs.c b/src/gallium/drivers/llvmpipe/lp_quad_fs.c
deleted file mode 100644
index 9ead086..0000000
--- a/src/gallium/drivers/llvmpipe/lp_quad_fs.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2008-2009 VMware, Inc.
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-/* Vertices are just an array of floats, with all the attributes
- * packed.  We currently assume a layout like:
- *
- * attr[0][0..3] - window position
- * attr[1..n][0..3] - remaining attributes.
- *
- * Attributes are assumed to be 4 floats wide but are packed so that
- * all the enabled attributes run contiguously.
- */
-
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_screen.h"
-
-#include "lp_context.h"
-#include "lp_state.h"
-#include "lp_quad.h"
-#include "lp_quad_pipe.h"
-#include "lp_texture.h"
-#include "lp_tile_cache.h"
-#include "lp_tile_soa.h"
-
-
-struct quad_shade_stage
-{
-   struct quad_stage stage;  /**< base class */
-
-   struct pipe_transfer *transfer;
-   uint8_t *map;
-};
-
-
-/** cast wrapper */
-static INLINE struct quad_shade_stage *
-quad_shade_stage(struct quad_stage *qs)
-{
-   return (struct quad_shade_stage *) qs;
-}
-
-
-
-/**
- * Execute fragment shader for the four fragments in the quad.
- */
-static void
-shade_quads(struct quad_stage *qs,
-                 struct quad_header *quads[],
-                 unsigned nr)
-{
-   struct quad_shade_stage *qss = quad_shade_stage( qs );
-   struct llvmpipe_context *llvmpipe = qs->llvmpipe;
-   struct lp_fragment_shader *fs = llvmpipe->fs;
-   void *constants;
-   struct tgsi_sampler **samplers;
-   struct quad_header *quad = quads[0];
-   const unsigned x = quad->input.x0;
-   const unsigned y = quad->input.y0;
-   uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
-   uint8_t *color;
-   void *depth;
-   uint32_t ALIGN16_ATTRIB 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;
-
-   /* color buffer */
-   color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
-
-   /* depth buffer */
-   if(qss->map) {
-      assert((x % 2) == 0);
-      assert((y % 2) == 0);
-      depth = qss->map +
-              y*qss->transfer->stride +
-              2*x*qss->transfer->block.size;
-   }
-   else
-      depth = NULL;
-
-   constants = llvmpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
-   samplers = (struct tgsi_sampler **)llvmpipe->tgsi.frag_samplers_list;
-   /* TODO: blend color */
-
-   assert((((uintptr_t)mask) & 0xf) == 0);
-   assert((((uintptr_t)depth) & 0xf) == 0);
-   assert((((uintptr_t)color) & 0xf) == 0);
-   assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0);
-
-   /* run shader */
-   fs->current->jit_function( x,
-                              y,
-                              quad->coef->a0,
-                              quad->coef->dadx,
-                              quad->coef->dady,
-                              constants,
-                              &mask[0][0],
-                              color,
-                              depth,
-                              samplers);
-}
-
-
-
-/**
- * Per-primitive (or per-begin?) setup
- */
-static void
-shade_begin(struct quad_stage *qs)
-{
-   struct quad_shade_stage *qss = quad_shade_stage( qs );
-   struct llvmpipe_context *llvmpipe = qs->llvmpipe;
-   struct pipe_screen *screen = llvmpipe->pipe.screen;
-   struct pipe_surface *zsbuf = llvmpipe->framebuffer.zsbuf;
-
-   if(qss->transfer) {
-      if(qss->map) {
-         screen->transfer_unmap(screen, qss->transfer);
-         qss->map = NULL;
-      }
-
-      screen->tex_transfer_destroy(qss->transfer);
-      qss->transfer = NULL;
-   }
-
-   if(zsbuf) {
-      qss->transfer = screen->get_tex_transfer(screen, zsbuf->texture,
-                                               zsbuf->face, zsbuf->level, zsbuf->zslice,
-                                               PIPE_TRANSFER_READ_WRITE,
-                                               0, 0, zsbuf->width, zsbuf->height);
-      if(qss->transfer)
-         qss->map = screen->transfer_map(screen, qss->transfer);
-
-   }
-
-}
-
-
-static void
-shade_destroy(struct quad_stage *qs)
-{
-   struct quad_shade_stage *qss = quad_shade_stage( qs );
-   struct llvmpipe_context *llvmpipe = qs->llvmpipe;
-   struct pipe_screen *screen = llvmpipe->pipe.screen;
-
-   if(qss->transfer) {
-      if(qss->map) {
-         screen->transfer_unmap(screen, qss->transfer);
-         qss->map = NULL;
-      }
-
-      screen->tex_transfer_destroy(qss->transfer);
-      qss->transfer = NULL;
-   }
-
-   align_free( qs );
-}
-
-
-struct quad_stage *
-lp_quad_shade_stage( struct llvmpipe_context *llvmpipe )
-{
-   struct quad_shade_stage *qss;
-
-   qss = align_malloc(sizeof(struct quad_shade_stage), 16);
-   if (!qss)
-      return NULL;
-
-   memset(qss, 0, sizeof *qss);
-
-   qss->stage.llvmpipe = llvmpipe;
-   qss->stage.begin = shade_begin;
-   qss->stage.run = shade_quads;
-   qss->stage.destroy = shade_destroy;
-
-   return &qss->stage;
-}
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_pipe.c b/src/gallium/drivers/llvmpipe/lp_quad_pipe.c
deleted file mode 100644
index e672dc9..0000000
--- a/src/gallium/drivers/llvmpipe/lp_quad_pipe.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-
-#include "lp_context.h"
-#include "lp_state.h"
-#include "pipe/p_shader_tokens.h"
-
-void
-lp_build_quad_pipeline(struct llvmpipe_context *lp)
-{
-   lp->quad.first = lp->quad.shade;
-}
-
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_pipe.h b/src/gallium/drivers/llvmpipe/lp_quad_pipe.h
deleted file mode 100644
index ff4747f..0000000
--- a/src/gallium/drivers/llvmpipe/lp_quad_pipe.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-/* Authors:  Keith Whitwell <keith at tungstengraphics.com>
- */
-
-#ifndef LP_QUAD_PIPE_H
-#define LP_QUAD_PIPE_H
-
-
-struct llvmpipe_context;
-struct quad_header;
-
-
-/**
- * Fragment processing is performed on 2x2 blocks of pixels called "quads".
- * Quad processing is performed with a pipeline of stages represented by
- * this type.
- */
-struct quad_stage {
-   struct llvmpipe_context *llvmpipe;
-
-   struct quad_stage *next;
-
-   void (*begin)(struct quad_stage *qs);
-
-   /** the stage action */
-   void (*run)(struct quad_stage *qs, struct quad_header *quad[], unsigned nr);
-
-   void (*destroy)(struct quad_stage *qs);
-};
-
-
-struct quad_stage *lp_quad_shade_stage( struct llvmpipe_context *llvmpipe );
-
-void lp_build_quad_pipeline(struct llvmpipe_context *lp);
-
-#endif /* LP_QUAD_PIPE_H */
diff --git a/src/gallium/drivers/llvmpipe/lp_setup.c b/src/gallium/drivers/llvmpipe/lp_setup.c
index 84e1963..421cccd 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup.c
@@ -35,7 +35,6 @@
 #include "lp_context.h"
 #include "lp_prim_setup.h"
 #include "lp_quad.h"
-#include "lp_quad_pipe.h"
 #include "lp_setup.h"
 #include "lp_state.h"
 #include "draw/draw_context.h"
@@ -45,6 +44,7 @@
 #include "pipe/p_thread.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
+#include "lp_tile_cache.h"
 #include "lp_tile_soa.h"
 
 
@@ -111,6 +111,83 @@ struct setup_context {
 
 
 
+/**
+ * Execute fragment shader for the four fragments in the quad.
+ */
+static void
+shade_quads(struct llvmpipe_context *llvmpipe,
+            struct quad_header *quads[],
+            unsigned nr)
+{
+   struct lp_fragment_shader *fs = llvmpipe->fs;
+   void *constants;
+   struct tgsi_sampler **samplers;
+   struct quad_header *quad = quads[0];
+   const unsigned x = quad->input.x0;
+   const unsigned y = quad->input.y0;
+   uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
+   uint8_t *color;
+   void *depth;
+   uint32_t ALIGN16_ATTRIB 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;
+
+   /* color buffer */
+   color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
+
+   /* 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*llvmpipe->zsbuf_transfer->block.size;
+   }
+   else
+      depth = NULL;
+
+   constants = llvmpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
+   samplers = (struct tgsi_sampler **)llvmpipe->tgsi.frag_samplers_list;
+   /* TODO: blend color */
+
+   assert((((uintptr_t)mask) & 0xf) == 0);
+   assert((((uintptr_t)depth) & 0xf) == 0);
+   assert((((uintptr_t)color) & 0xf) == 0);
+   assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0);
+
+   /* run shader */
+   fs->current->jit_function( x,
+                              y,
+                              quad->coef->a0,
+                              quad->coef->dadx,
+                              quad->coef->dady,
+                              constants,
+                              &mask[0][0],
+                              color,
+                              depth,
+                              samplers);
+}
+
+
+
 
 /**
  * Do triangle cull test using tri determinant (sign indicates orientation)
@@ -217,9 +294,9 @@ clip_emit_quad( struct setup_context *setup, struct quad_header *quad )
          quad_ptrs[i] = &quads[i];
       }
 
-      lp->quad.first->run( lp->quad.first, quad_ptrs, nr_quads );
+      shade_quads( lp, quad_ptrs, nr_quads );
 #else
-      lp->quad.first->run( lp->quad.first, &quad, 1 );
+      shade_quads( lp, &quad, 1 );
 #endif
    }
 }
@@ -235,7 +312,6 @@ static void flush_spans( struct setup_context *setup )
    const int xleft1 = setup->span.left[1];
    const int xright0 = setup->span.right[0];
    const int xright1 = setup->span.right[1];
-   struct quad_stage *pipe = setup->llvmpipe->quad.first;
 
 
    int minleft = block_x(MIN2(xleft0, xleft1));
@@ -275,7 +351,7 @@ static void flush_spans( struct setup_context *setup )
          }
          assert(!(mask0 | mask1));
 
-         pipe->run( pipe, setup->quad_ptrs, nr_quads );
+         shade_quads(setup->llvmpipe, setup->quad_ptrs, nr_quads );
       }
    }
 
@@ -1365,8 +1441,6 @@ void llvmpipe_setup_prepare( struct setup_context *setup )
       llvmpipe_update_derived(lp);
    }
 
-   lp->quad.first->begin( lp->quad.first );
-
    if (lp->reduced_api_prim == PIPE_PRIM_TRIANGLES &&
        lp->rasterizer->fill_cw == PIPE_POLYGON_MODE_FILL &&
        lp->rasterizer->fill_ccw == PIPE_POLYGON_MODE_FILL) {
diff --git a/src/gallium/drivers/llvmpipe/lp_state_derived.c b/src/gallium/drivers/llvmpipe/lp_state_derived.c
index 9f5d2ff..5f800eb 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_derived.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_derived.c
@@ -252,9 +252,5 @@ void llvmpipe_update_derived( struct llvmpipe_context *llvmpipe )
       llvmpipe_update_fs( llvmpipe );
 
 
-   if (llvmpipe->dirty & (LP_NEW_FRAMEBUFFER |
-                          LP_NEW_FS))
-      lp_build_quad_pipeline(llvmpipe);
-
    llvmpipe->dirty = 0;
 }
diff --git a/src/gallium/drivers/llvmpipe/lp_state_surface.c b/src/gallium/drivers/llvmpipe/lp_state_surface.c
index 00c61c4..177a26b 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_surface.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_surface.c
@@ -67,6 +67,19 @@ llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
 
    /* zbuf changing? */
    if (lp->framebuffer.zsbuf != fb->zsbuf) {
+
+      if(lp->zsbuf_transfer) {
+         struct pipe_screen *screen = pipe->screen;
+
+         if(lp->zsbuf_map) {
+            screen->transfer_unmap(screen, lp->zsbuf_transfer);
+            lp->zsbuf_map = NULL;
+         }
+
+         screen->tex_transfer_destroy(lp->zsbuf_transfer);
+         lp->zsbuf_transfer = NULL;
+      }
+
       /* assign new */
       lp->framebuffer.zsbuf = fb->zsbuf;
 




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