Move guts of vertex array drawing into the 'draw' module.

1 files changed, 12 insertions, 337 deletions

diff --git a/src/mesa/pipe/softpipe/sp_draw_arrays.c b/src/mesa/pipe/softpipe/sp_draw_arrays.c
index 6213286f47..2df07eb7d6 100644
--- a/src/mesa/pipe/softpipe/sp_draw_arrays.c
+++ b/src/mesa/pipe/softpipe/sp_draw_arrays.c
@@ -31,284 +31,15 @@
  */
 
 
-/** TEMP */
-#include "main/context.h"
-#include "main/macros.h"
-
 #include "pipe/p_defines.h"
 #include "pipe/p_context.h"
 #include "pipe/p_winsys.h"
-
+#include "pipe/p_util.h"
 
 #include "sp_context.h"
 #include "sp_state.h"
 
-#include "pipe/draw/draw_private.h"
 #include "pipe/draw/draw_context.h"
-#include "pipe/draw/draw_prim.h"
-
-#include "pipe/tgsi/core/tgsi_exec.h"
-#include "pipe/tgsi/core/tgsi_build.h"
-#include "pipe/tgsi/core/tgsi_util.h"
-
-
-#if defined __GNUC__
-#define ALIGN16_DECL(TYPE, NAME, SIZE)  TYPE NAME[SIZE] __attribute__(( aligned( 16 ) ))
-#define ALIGN16_ASSIGN(P) P
-#else
-#define ALIGN16_DECL(TYPE, NAME, SIZE)  TYPE NAME[SIZE + 1]
-#define ALIGN16_ASSIGN(P) align16(P)
-#endif
-
-
-
-static INLINE unsigned
-compute_clipmask(float cx, float cy, float cz, float cw)
-{
-   unsigned mask;
-#if defined(macintosh) || defined(__powerpc__)
-   /* on powerpc cliptest is 17% faster in this way. */
-   mask =  (((cw <  cx) << CLIP_RIGHT_SHIFT));
-   mask |= (((cw < -cx) << CLIP_LEFT_SHIFT));
-   mask |= (((cw <  cy) << CLIP_TOP_SHIFT));
-   mask |= (((cw < -cy) << CLIP_BOTTOM_SHIFT));
-   mask |= (((cw <  cz) << CLIP_FAR_SHIFT));
-   mask |= (((cw < -cz) << CLIP_NEAR_SHIFT));
-#else /* !defined(macintosh)) */
-   mask = 0x0;
-   if (-cx + cw < 0) mask |= CLIP_RIGHT_BIT;
-   if ( cx + cw < 0) mask |= CLIP_LEFT_BIT;
-   if (-cy + cw < 0) mask |= CLIP_TOP_BIT;
-   if ( cy + cw < 0) mask |= CLIP_BOTTOM_BIT;
-   if (-cz + cw < 0) mask |= CLIP_FAR_BIT;
-   if ( cz + cw < 0) mask |= CLIP_NEAR_BIT;
-#endif /* defined(macintosh) */
-   return mask;
-}
-
-
-/**
- * Fetch a float[4] vertex attribute from memory, doing format/type
- * conversion as needed.
- * XXX this might be a temporary thing.
- */
-static void
-fetch_attrib4(const void *ptr, unsigned format, float attrib[4])
-{
-   /* defaults */
-   attrib[1] = 0.0;
-   attrib[2] = 0.0;
-   attrib[3] = 1.0;
-   switch (format) {
-   case PIPE_FORMAT_R32G32B32A32_FLOAT:
-      attrib[3] = ((float *) ptr)[3];
-      /* fall-through */
-   case PIPE_FORMAT_R32G32B32_FLOAT:
-      attrib[2] = ((float *) ptr)[2];
-      /* fall-through */
-   case PIPE_FORMAT_R32G32_FLOAT:
-      attrib[1] = ((float *) ptr)[1];
-      /* fall-through */
-   case PIPE_FORMAT_R32_FLOAT:
-      attrib[0] = ((float *) ptr)[0];
-      break;
-   default:
-      assert(0);
-   }
-}
-
-
-/**
- * Transform vertices with the current vertex program/shader
- * Up to four vertices can be shaded at a time.
- * \param vbuffer  the input vertex data
- * \param elts  indexes of four input vertices
- * \param count  number of vertices to shade [1..4]
- * \param vOut  array of pointers to four output vertices
- */
-static void
-run_vertex_program(struct softpipe_context *sp,
-                   unsigned elts[4], unsigned count,
-                   struct vertex_header *vOut[])
-{
-   struct tgsi_exec_machine machine;
-   unsigned int j;
-
-   ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_ATTRIB_MAX);
-   ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_ATTRIB_MAX);
-   const float *scale = sp->viewport.scale;
-   const float *trans = sp->viewport.translate;
-
-   assert(count <= 4);
-
-#ifdef DEBUG
-   memset( &machine, 0, sizeof( machine ) );
-#endif
-
-   /* init machine state */
-   tgsi_exec_machine_init(
-                          &machine,
-                          sp->vs.tokens,
-                          PIPE_MAX_SAMPLERS,
-                          NULL /*samplers*/ );
-
-   /* Consts does not require 16 byte alignment. */
-   machine.Consts = sp->vs.constants->constant;
-
-   machine.Inputs = ALIGN16_ASSIGN(inputs);
-   machine.Outputs = ALIGN16_ASSIGN(outputs);
-
-
-   if (0)
-   {
-      unsigned attr;
-      for (attr = 0; attr < 16; attr++) {
-         if (sp->vs.inputs_read & (1 << attr)) {
-            printf("attr %d: buf_off %d  src_off %d  pitch %d\n",
-                   attr, 
-                   sp->vertex_buffer[attr].buffer_offset,
-                   sp->vertex_element[attr].src_offset,
-                   sp->vertex_buffer[attr].pitch);
-         }
-      }
-   }
-
-   /* load machine inputs */
-   for (j = 0; j < count; j++) {
-      unsigned attr;
-      for (attr = 0; attr < 16; attr++) {
-         if (sp->vs.inputs_read & (1 << attr)) {
-            const void *src
-               = (const void *) ((const ubyte *) sp->mapped_vbuffer[attr]
-                                 + sp->vertex_buffer[attr].buffer_offset
-                                 + sp->vertex_element[attr].src_offset
-                                 + elts[j] * sp->vertex_buffer[attr].pitch);
-            float p[4];
-
-            fetch_attrib4(src, sp->vertex_element[attr].src_format, p);
-
-            machine.Inputs[attr].xyzw[0].f[j] = p[0]; /*X*/
-            machine.Inputs[attr].xyzw[1].f[j] = p[1]; /*Y*/
-            machine.Inputs[attr].xyzw[2].f[j] = p[2]; /*Z*/
-            machine.Inputs[attr].xyzw[3].f[j] = p[3]; /*W*/
-#if 0
-            if (attr == 0) {
-               printf("Input vertex %d: %f %f %f\n",
-                      j, p[0], p[1], p[2]);
-            }
-#endif
-         }
-      }
-   }
-
-#if 0
-   printf("Consts:\n");
-   for (i = 0; i < 4; i++) {
-      printf(" %d: %f %f %f %f\n", i,
-             machine.Consts[i][0],
-             machine.Consts[i][1],
-             machine.Consts[i][2],
-             machine.Consts[i][3]);
-   }
-#endif
-
-   /* run shader */
-   tgsi_exec_machine_run( &machine );
-
-#if 0
-   printf("VS result: %f %f %f %f\n",
-          outputs[0].xyzw[0].f[0],
-          outputs[0].xyzw[1].f[0],
-          outputs[0].xyzw[2].f[0],
-          outputs[0].xyzw[3].f[0]);
-#endif
-
-   /* store machine results */
-   assert(sp->vs.outputs_written & (1 << VERT_RESULT_HPOS));
-   for (j = 0; j < count; j++) {
-      unsigned attr, slot;
-      float x, y, z, w;
-
-      /* Handle attr[0] (position) specially: */
-      x = vOut[j]->clip[0] = outputs[0].xyzw[0].f[j];
-      y = vOut[j]->clip[1] = outputs[0].xyzw[1].f[j];
-      z = vOut[j]->clip[2] = outputs[0].xyzw[2].f[j];
-      w = vOut[j]->clip[3] = outputs[0].xyzw[3].f[j];
-
-      vOut[j]->clipmask = compute_clipmask(x, y, z, w);
-      vOut[j]->edgeflag = 1;
-
-      /* divide by w */
-      w = 1.0 / w;
-      x *= w;
-      y *= w;
-      z *= w;
-
-      /* Viewport mapping */
-      vOut[j]->data[0][0] = x * scale[0] + trans[0];
-      vOut[j]->data[0][1] = y * scale[1] + trans[1];
-      vOut[j]->data[0][2] = z * scale[2] + trans[2];
-      vOut[j]->data[0][3] = w;
-#if 0
-      printf("wincoord: %f %f %f\n",
-             vOut[j]->data[0][0],
-             vOut[j]->data[0][1],
-             vOut[j]->data[0][2]);
-#endif
-
-      /* remaining attributes: */
-      /* pack into sequential post-transform attrib slots */
-      slot = 1;
-      for (attr = 1; attr < VERT_RESULT_MAX; attr++) {
-         if (sp->vs.outputs_written & (1 << attr)) {
-            assert(slot < sp->nr_attrs);
-            vOut[j]->data[slot][0] = outputs[attr].xyzw[0].f[j];
-            vOut[j]->data[slot][1] = outputs[attr].xyzw[1].f[j];
-            vOut[j]->data[slot][2] = outputs[attr].xyzw[2].f[j];
-            vOut[j]->data[slot][3] = outputs[attr].xyzw[3].f[j];
-            slot++;
-         }
-      }
-   }
-
-#if 0
-   memcpy(
-      quad->outputs.color,
-      &machine.Outputs[1].xyzw[0].f[0],
-      sizeof( quad->outputs.color ) );
-#endif
-}
-
-
-/**
- * Called by the draw module when the vertx cache needs to be flushed.
- * This involves running the vertex shader.
- */
-static void vs_flush( struct draw_context *draw )
-{
-   struct softpipe_context *sp = (struct softpipe_context *) draw->pipe;
-   unsigned i, j;
-
-   /* run vertex shader on vertex cache entries, four per invokation */
-   for (i = 0; i < draw->vs.queue_nr; i += 4) {
-      struct vertex_header *dests[4];
-      unsigned elts[4];
-      int n;
-
-      for (j = 0; j < 4; j++) {
-         elts[j] = draw->vs.queue[i + j].elt;
-         dests[j] = draw->vs.queue[i + j].dest;
-      }
-
-      n = MIN2(4, draw->vs.queue_nr - i);
-      assert(n > 0);
-      assert(n <= 4);
-
-      run_vertex_program(sp, elts, n, dests);
-   }
-
-   draw->vs.queue_nr = 0;
-}
 
 
 
@@ -322,6 +53,10 @@ softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode,
 
 
 /**
+ * Draw vertex arrays, with optional indexing.
+ * Basically, map the vertex buffers (and drawing surfaces), then hand off
+ * the drawing to the 'draw' module.
+ *
  * XXX should the element buffer be specified/bound with a separate function?
  */
 void
@@ -330,7 +65,6 @@ softpipe_draw_elements(struct pipe_context *pipe,
                        unsigned indexSize,
                        unsigned mode, unsigned start, unsigned count)
 {
-
    struct softpipe_context *sp = softpipe_context(pipe);
    struct draw_context *draw = sp->draw;
    unsigned length, first, incr, i;
@@ -353,10 +87,11 @@ softpipe_draw_elements(struct pipe_context *pipe,
     */
    for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
       if (sp->vertex_buffer[i].buffer) {
-         sp->mapped_vbuffer[i]
+         void *buf
             = pipe->winsys->buffer_map(pipe->winsys,
                                        sp->vertex_buffer[i].buffer,
                                        PIPE_BUFFER_FLAG_READ);
+         draw_set_mapped_vertex_buffer(draw, i, buf);
       }
    }
    /* Map index buffer, if present */
@@ -364,30 +99,15 @@ softpipe_draw_elements(struct pipe_context *pipe,
       mapped_indexes = pipe->winsys->buffer_map(pipe->winsys,
                                                 indexBuffer,
                                                 PIPE_BUFFER_FLAG_READ);
-      draw_set_element_buffer(draw, indexSize, mapped_indexes);
+      draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
    }
    else {
-      draw_set_element_buffer(draw, 0, NULL);  /* no index/element buffer */
+      draw_set_mapped_element_buffer(draw, 0, NULL);  /* no index/element buffer */
    }
 
-   /* tell drawing pipeline we're beginning drawing */
-   draw->pipeline.first->begin( draw->pipeline.first );
-
-   draw->vs_flush = vs_flush;
-   draw->pipe = pipe;  /* XXX pass pipe to draw_create() */
-
-   draw_invalidate_vcache( draw );
 
-   draw_set_prim( draw, mode );
+   draw_arrays(draw, mode, start, count);
 
-   /* drawing done here: */
-   draw_prim(draw, start, count);
-
-   /* draw any left-over buffered prims */
-   draw_flush(draw);
-
-   /* tell drawing pipeline we're done drawing */
-   draw->pipeline.first->end( draw->pipeline.first );
 
    /*
     * unmap vertex/index buffers
@@ -395,58 +115,13 @@ softpipe_draw_elements(struct pipe_context *pipe,
    for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
       if (sp->vertex_buffer[i].buffer) {
          pipe->winsys->buffer_unmap(pipe->winsys, sp->vertex_buffer[i].buffer);
+         draw_set_mapped_vertex_buffer(draw, i, NULL);
       }
    }
    if (indexBuffer) {
       pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
+      draw_set_mapped_element_buffer(draw, 0, NULL);
    }
 
    softpipe_unmap_surfaces(sp);
 }
-
-
-
-#define EMIT_ATTR( VF_ATTR, STYLE, SIZE )			\
-do {								\
-   if (draw->nr_attrs >= 2)					\
-      draw->vf_attr_to_slot[VF_ATTR] = draw->nr_attrs - 2;	\
-   draw->attrs[draw->nr_attrs].attrib = VF_ATTR;		\
-   draw->attrs[draw->nr_attrs].format = STYLE;			\
-   draw->nr_attrs++;						\
-   draw->vertex_size += SIZE;					\
-} while (0)
-
-
-/**
- * XXX very similar to same func in draw_vb.c (which will go away)
- */
-void
-draw_set_vertex_attributes2( struct draw_context *draw,
-                             const unsigned *slot_to_vf_attr,
-                             unsigned nr_attrs )
-{
-   unsigned i;
-
-   memset(draw->vf_attr_to_slot, 0, sizeof(draw->vf_attr_to_slot));
-   draw->nr_attrs = 0;
-   draw->vertex_size = 0;
-
-   /*
-    * First three attribs are always the same: header, clip pos, winpos
-    */
-   EMIT_ATTR(VF_ATTRIB_VERTEX_HEADER, EMIT_1F, 1);
-   EMIT_ATTR(VF_ATTRIB_CLIP_POS, EMIT_4F, 4);
-
-   assert(slot_to_vf_attr[0] == VF_ATTRIB_POS);
-   EMIT_ATTR(slot_to_vf_attr[0], EMIT_4F_VIEWPORT, 4);
-
-   /*
-    * Remaining attribs (color, texcoords, etc)
-    */
-   for (i = 1; i < nr_attrs; i++) 
-      EMIT_ATTR(slot_to_vf_attr[i], EMIT_4F, 4);
-
-   draw->vertex_size *= 4; /* floats to bytes */
-}
-			    
-