gallium: draw_passthrough.c is obsolete - removed

1 files changed, 0 insertions, 473 deletions

diff --git a/src/gallium/auxiliary/draw/draw_passthrough.c b/src/gallium/auxiliary/draw/draw_passthrough.c
deleted file mode 100644
index 2198079a880..00000000000
--- a/src/gallium/auxiliary/draw/draw_passthrough.c
+++ /dev/null
@@ -1,473 +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 <[email protected]>
-  */
-
-
-/* This code is a prototype of what a passhthrough vertex shader might
- * look like.
- *
- * Probably the best approach for us is to do:
- *    - vertex fetch
- *    - vertex shader
- *    - cliptest / viewport transform
- *
- * in one step, then examine the clipOrMask & choose between two paths:
- *
- * Either:
- *    - build primitive headers
- *    - clip and the primitive path
- *    - build clipped vertex buffers,
- *    - vertex-emit to vbuf buffers
- *
- * Or, if no clipping:
- *    - vertex-emit directly to vbuf buffers
- *
- * But when bypass clipping is enabled, we just take the latter
- * choice.  If (some new) passthrough-vertex-shader flag is also set,
- * the pipeline degenerates to:
- *
- *    - vertex fetch
- *    - vertex emit to vbuf buffers
- *
- * Which is what is prototyped here.
- */
-#include "pipe/p_util.h"
-#include "draw/draw_context.h"
-#include "draw/draw_private.h"
-#include "draw/draw_vbuf.h"
-#include "draw/draw_vertex.h"
-
-
-/**
- * General-purpose fetch from user's vertex arrays, emit to driver's
- * vertex buffer.
- *
- * XXX this is totally temporary.
- */
-static void
-fetch_store_general( struct draw_context *draw,
-                     float *out,
-                     unsigned start,
-                     unsigned count )
-{
-   const struct vertex_info *vinfo = draw->render->get_vertex_info(draw->render);
-   const unsigned nr_attrs = vinfo->num_attribs;
-   uint i, j;
-
-   const unsigned *pitch   = draw->vertex_fetch.pitch;
-   const ubyte **src       = draw->vertex_fetch.src_ptr;
-
-   for (i = start; i < start + count; i++) {
-      for (j = 0; j < nr_attrs; j++) {
-         /* vinfo->src_index is the output of the vertex shader
-          * matching this hw-vertex component. 
-          *
-          * In passthrough, we require a 1:1 mapping between vertex
-          * shader outputs and inputs, which in turn correspond to
-          * vertex elements in the state.  So, this is the vertex
-          * element we're interested in...
-          */
-         const uint jj = vinfo->src_index[j];
-         const enum pipe_format srcFormat  = draw->vertex_element[jj].src_format;
-         const ubyte *from = src[jj] + i * pitch[jj];
-         float attrib[4];
-
-         /* Except...  When we're not.  Two cases EMIT_HEADER &
-          * EMIT_1F_PSIZE don't consume an input.  Should have some
-          * method for indicating this, or change the logic here
-          * somewhat so it doesn't matter.
-          *
-          * Just hack this up now, do something better about it later.
-          */
-         if (vinfo->emit[j] == EMIT_HEADER) {
-            memset(out, 0, sizeof(struct vertex_header));
-            out += sizeof(struct vertex_header) / 4;
-            continue;
-         }
-         else if (vinfo->emit[j] == EMIT_1F_PSIZE) {
-            out[0] = 1.0;       /* xxx */
-            out += 1;
-            continue;
-         }
-         
-
-         /* The normal fetch/emit code:
-          */
-         switch (srcFormat) {
-         case PIPE_FORMAT_B8G8R8A8_UNORM:
-            {
-               ubyte *ub = (ubyte *) from;
-               attrib[2] = UBYTE_TO_FLOAT(ub[0]);
-               attrib[1] = UBYTE_TO_FLOAT(ub[1]);
-               attrib[0] = UBYTE_TO_FLOAT(ub[2]);
-               attrib[3] = UBYTE_TO_FLOAT(ub[3]);
-            }
-            break;
-         case PIPE_FORMAT_R32G32B32A32_FLOAT:
-            {
-               float *f = (float *) from;
-               attrib[0] = f[0];
-               attrib[1] = f[1];
-               attrib[2] = f[2];
-               attrib[3] = f[3];
-            }
-            break;
-         case PIPE_FORMAT_R32G32B32_FLOAT:
-            {
-               float *f = (float *) from;
-               attrib[0] = f[0];
-               attrib[1] = f[1];
-               attrib[2] = f[2];
-               attrib[3] = 1.0;
-            }
-            break;
-         case PIPE_FORMAT_R32G32_FLOAT:
-            {
-               float *f = (float *) from;
-               attrib[0] = f[0];
-               attrib[1] = f[1];
-               attrib[2] = 0.0;
-               attrib[3] = 1.0;
-            }
-            break;
-         case PIPE_FORMAT_R32_FLOAT:
-            {
-               float *f = (float *) from;
-               attrib[0] = f[0];
-               attrib[1] = 0.0;
-               attrib[2] = 0.0;
-               attrib[3] = 1.0;
-            }
-            break;
-         default:
-            assert(0);
-         }
-
-         debug_printf("attrib %d: %f %f %f %f\n", j, 
-                      attrib[0], attrib[1], attrib[2], attrib[3]);
-
-         switch (vinfo->emit[j]) {
-         case EMIT_1F:
-            out[0] = attrib[0];
-            out += 1;
-            break;
-         case EMIT_2F:
-            out[0] = attrib[0];
-            out[1] = attrib[1];
-            out += 2;
-            break;
-         case EMIT_4F:
-            out[0] = attrib[0];
-            out[1] = attrib[1];
-            out[2] = attrib[2];
-            out[3] = attrib[3];
-            out += 4;
-            break;
-         default:
-            assert(0);
-         }
-      }
-      debug_printf("\n");
-   }
-}
-
-
-
-static boolean update_shader( struct draw_context *draw )
-{
-   const struct vertex_info *vinfo = draw->render->get_vertex_info(draw->render);
-
-   unsigned nr_attrs = vinfo->num_attribs;
-   unsigned i;
-
-   for (i = 0; i < nr_attrs; i++) {
-      unsigned buf = draw->vertex_element[i].vertex_buffer_index;
-
-      draw->vertex_fetch.src_ptr[i] = (const ubyte *) draw->user.vbuffer[buf] + 
-						       draw->vertex_buffer[buf].buffer_offset + 
-						       draw->vertex_element[i].src_offset;
-
-      draw->vertex_fetch.pitch[i] = draw->vertex_buffer[buf].pitch;
-      draw->vertex_fetch.fetch[i] = NULL;
-   }
-
-   draw->vertex_fetch.nr_attrs = nr_attrs;
-   draw->vertex_fetch.fetch_func = NULL;
-   draw->vertex_fetch.pt_fetch = NULL;
-
-   draw->pt.hw_vertex_size = vinfo->size * 4;
-
-   draw->vertex_fetch.pt_fetch = fetch_store_general;
-   return TRUE;
-}
-
-
-
-
-static boolean split_prim_inplace(unsigned prim, unsigned *first, unsigned *incr)
-{
-   switch (prim) {
-   case PIPE_PRIM_POINTS:
-      *first = 1;
-      *incr = 1;
-      return TRUE;
-   case PIPE_PRIM_LINES:
-      *first = 2;
-      *incr = 2;
-      return TRUE;
-   case PIPE_PRIM_LINE_STRIP:
-      *first = 2;
-      *incr = 1;
-      return TRUE;
-   case PIPE_PRIM_TRIANGLES:
-      *first = 3;
-      *incr = 3;
-      return TRUE;
-   case PIPE_PRIM_TRIANGLE_STRIP:
-      *first = 3;
-      *incr = 1;
-      return TRUE;
-   case PIPE_PRIM_QUADS:
-      *first = 4;
-      *incr = 4;
-      return TRUE;
-   case PIPE_PRIM_QUAD_STRIP:
-      *first = 4;
-      *incr = 2;
-      return TRUE;
-   default:
-      *first = 0;
-      *incr = 1;		/* set to one so that count % incr works */
-      return FALSE;
-   }
-}
-
-
-
-static boolean set_prim( struct draw_context *draw,
-                         unsigned prim,
-                         unsigned count )
-{
-   assert(!draw->user.elts);   
-
-   switch (prim) { 
-   case PIPE_PRIM_LINE_LOOP:
-      if (count > 1024)
-         return FALSE;
-      return draw->render->set_primitive( draw->render, PIPE_PRIM_LINE_STRIP );
-
-   case PIPE_PRIM_TRIANGLE_FAN:
-   case PIPE_PRIM_POLYGON:
-      if (count > 1024)
-         return FALSE;
-      return draw->render->set_primitive( draw->render, prim );
-
-   case PIPE_PRIM_QUADS:
-   case PIPE_PRIM_QUAD_STRIP:
-      return draw->render->set_primitive( draw->render, PIPE_PRIM_TRIANGLES );
-
-   default:
-      return draw->render->set_primitive( draw->render, prim );
-      break;
-   }
-
-   return TRUE;
-}
-
-
-
-#define INDEX(i) (start + (i))
-static void pt_draw_arrays( struct draw_context *draw,
-			    unsigned start,
-			    unsigned length )
-{
-   ushort *tmp = NULL;
-   unsigned i, j;
-
-   switch (draw->pt.prim) {
-   case PIPE_PRIM_LINE_LOOP:
-      tmp = MALLOC( sizeof(ushort) * (length + 1) );
-
-      for (i = 0; i < length; i++)
-	 tmp[i] = INDEX(i);
-      tmp[length] = 0;
-
-      draw->render->draw( draw->render,
-			  tmp,
-			  length+1 );
-      break;
-
-
-   case PIPE_PRIM_QUAD_STRIP:
-      tmp = MALLOC( sizeof(ushort) * (length / 2 * 6) );
-
-      for (j = i = 0; i + 3 < length; i += 2, j += 6) {
-	 tmp[j+0] = INDEX(i+0);
-	 tmp[j+1] = INDEX(i+1);
-	 tmp[j+2] = INDEX(i+3);
-
-	 tmp[j+3] = INDEX(i+2);
-	 tmp[j+4] = INDEX(i+0);
-	 tmp[j+5] = INDEX(i+3);
-      }
-
-      if (j)
-	 draw->render->draw( draw->render, tmp, j );
-      break;
-
-   case PIPE_PRIM_QUADS:
-      tmp = MALLOC( sizeof(int) * (length / 4 * 6) );
-
-      for (j = i = 0; i + 3 < length; i += 4, j += 6) {
-	 tmp[j+0] = INDEX(i+0);
-	 tmp[j+1] = INDEX(i+1);
-	 tmp[j+2] = INDEX(i+3);
-
-	 tmp[j+3] = INDEX(i+1);
-	 tmp[j+4] = INDEX(i+2);
-	 tmp[j+5] = INDEX(i+3);
-      }
-
-      if (j)
-	 draw->render->draw( draw->render, tmp, j );
-      break;
-
-   default:
-      draw->render->draw_arrays( draw->render,
-                                 start,
-                                 length );
-      break;
-   }
-
-   if (tmp)
-      FREE(tmp);
-}
-
-
-
-static boolean do_draw( struct draw_context *draw, 
-                        unsigned start, unsigned count )
-{
-   float *hw_verts = 
-      draw->render->allocate_vertices( draw->render,
-                                       (ushort)draw->pt.hw_vertex_size,
-                                       (ushort)count );
-
-   if (!hw_verts)
-      return FALSE;
-					
-   /* Single routine to fetch vertices and emit HW verts.
-    */
-   draw->vertex_fetch.pt_fetch( draw, 
-				hw_verts,
-				start, count );
-
-   /* Draw arrays path to avoid re-emitting index list again and
-    * again.
-    */
-   pt_draw_arrays( draw,
-                   0,
-                   count );
-   
-
-   draw->render->release_vertices( draw->render, 
-				   hw_verts, 
-				   draw->pt.hw_vertex_size, 
-				   count );
-
-   return TRUE;
-}
-
-
-boolean
-draw_passthrough_arrays(struct draw_context *draw, 
-                        unsigned prim,
-                        unsigned start, 
-                        unsigned count)
-{
-   unsigned i = 0;
-   unsigned first, incr;
-   
-   //debug_printf("%s prim %d start %d count %d\n", __FUNCTION__, prim, start, count);
-   
-   split_prim_inplace(prim, &first, &incr);
-
-   count -= (count - first) % incr; 
-
-   debug_printf("%s %d %d %d\n", __FUNCTION__, prim, start, count);
-
-   if (draw_need_pipeline(draw, prim))
-      return FALSE;
-
-   debug_printf("%s AAA\n", __FUNCTION__);
-
-   if (!set_prim(draw, prim, count))
-      return FALSE;
-
-   /* XXX: need a single value that reflects the most recent call to
-    * driver->set_primitive:
-    */
-   draw->pt.prim = prim;
-
-   debug_printf("%s BBB\n", __FUNCTION__);
-
-   if (!update_shader(draw))
-      return FALSE;
-
-   debug_printf("%s CCC\n", __FUNCTION__);
-
-   /* Chop this up into bite-sized pieces that a driver should be able
-    * to devour -- problem is we don't have a quick way to query the
-    * driver on the maximum size for this chunk in the current state.
-    */
-   while (i + first <= count) {
-      int nr = MIN2( count - i, 1024 );
-
-      /* snap to prim boundary 
-       */
-      nr -= (nr - first) % incr; 
-
-      if (!do_draw( draw, start + i, nr )) {
-         assert(0);
-         return FALSE;
-      }
-
-      /* increment allowing for repeated vertices
-       */
-      i += nr - (first - incr);
-   }
-
-
-   debug_printf("%s DONE\n", __FUNCTION__);
-   return TRUE;
-}
-
-