X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fauxiliary%2Fdraw%2Fdraw_pt.c;h=e89ccd254011f24c0d508edd2f7b87da678a83d6;hb=1c2e5c223da28cdffe156b6b430fcdf638909021;hp=0a4132864250906a4b44d3854d828b43a15fad01;hpb=f94e7e25d101a8691a5276a5aa0eb97d2f4eebbc;p=mesa.git

diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c
index 0a413286425..e89ccd25401 100644
--- a/src/gallium/auxiliary/draw/draw_pt.c
+++ b/src/gallium/auxiliary/draw/draw_pt.c
@@ -34,36 +34,26 @@
 #include "draw/draw_gs.h"
 #include "draw/draw_private.h"
 #include "draw/draw_pt.h"
+#include "draw/draw_vbuf.h"
 #include "draw/draw_vs.h"
 #include "tgsi/tgsi_dump.h"
 #include "util/u_math.h"
 #include "util/u_prim.h"
 #include "util/u_format.h"
+#include "util/u_draw.h"
 
 
 DEBUG_GET_ONCE_BOOL_OPTION(draw_fse, "DRAW_FSE", FALSE)
 DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse, "DRAW_NO_FSE", FALSE)
-#ifdef HAVE_LLVM
-DEBUG_GET_ONCE_BOOL_OPTION(draw_use_llvm, "DRAW_USE_LLVM", TRUE)
-#endif
-
-static unsigned trim( unsigned count, unsigned first, unsigned incr )
-{
-   if (count < first)
-      return 0;
-   return count - (count - first) % incr; 
-}
-
-
 
 /* Overall we split things into:
- *     - frontend -- prepare fetch_elts, draw_elts - eg vcache
+ *     - frontend -- prepare fetch_elts, draw_elts - eg vsplit
  *     - middle   -- fetch, shade, cliptest, viewport
  *     - pipeline -- the prim pipeline: clipping, wide lines, etc 
  *     - backend  -- the vbuf_render provided by the driver.
  */
 static boolean
-draw_pt_arrays(struct draw_context *draw, 
+draw_pt_arrays(struct draw_context *draw,
                unsigned prim,
                unsigned start, 
                unsigned count)
@@ -77,7 +67,7 @@ draw_pt_arrays(struct draw_context *draw,
    {
       unsigned first, incr;
       draw_pt_split_prim(prim, &first, &incr);
-      count = trim(count, first, incr);
+      count = draw_pt_trim_count(count, first, incr);
       if (count < first)
          return TRUE;
    }
@@ -97,7 +87,9 @@ draw_pt_arrays(struct draw_context *draw,
          opt |= PT_PIPELINE;
       }
 
-      if (!draw->bypass_clipping && !draw->pt.test_fse) {
+      if ((draw->clip_xy ||
+           draw->clip_z ||
+           draw->clip_user) && !draw->pt.test_fse) {
          opt |= PT_CLIPTEST;
       }
 
@@ -115,40 +107,76 @@ draw_pt_arrays(struct draw_context *draw,
          middle = draw->pt.middle.general;
    }
 
-
-   /* Pick the right frontend
-    */
-   if (draw->pt.user.elts || (opt & PT_PIPELINE)) {
-      frontend = draw->pt.front.vcache;
-   } else {
-      frontend = draw->pt.front.varray;
+   frontend = draw->pt.frontend;
+
+   if (frontend ) {
+      if (draw->pt.prim != prim || draw->pt.opt != opt) {
+         /* In certain conditions switching primitives requires us to flush
+          * and validate the different stages. One example is when smooth
+          * lines are active but first drawn with triangles and then with
+          * lines.
+          */
+         draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
+         frontend = NULL;
+      } else if (draw->pt.eltSize != draw->pt.user.eltSize) {
+         /* Flush draw state if eltSize changed.
+          * This could be improved so only the frontend is flushed since it
+          * converts all indices to ushorts and the fetch part of the middle
+          * always prepares both linear and indexed.
+          */
+         frontend->flush( frontend, DRAW_FLUSH_STATE_CHANGE );
+         frontend = NULL;
+      }
    }
 
-   frontend->prepare( frontend, prim, middle, opt );
+   if (!frontend) {
+      frontend = draw->pt.front.vsplit;
 
-   frontend->run(frontend,
-                 draw_pt_elt_func(draw),
-                 draw_pt_elt_ptr(draw, start),
-                 draw->pt.user.eltBias,
-                 count);
+      frontend->prepare( frontend, prim, middle, opt );
 
-   frontend->finish( frontend );
+      draw->pt.frontend = frontend;
+      draw->pt.eltSize = draw->pt.user.eltSize;
+      draw->pt.prim = prim;
+      draw->pt.opt = opt;
+   }
+
+   if (draw->pt.rebind_parameters) {
+      /* update constants, viewport dims, clip planes, etc */
+      middle->bind_parameters(middle);
+      draw->pt.rebind_parameters = FALSE;
+   }
+
+   frontend->run( frontend, start, count );
 
    return TRUE;
 }
 
+void draw_pt_flush( struct draw_context *draw, unsigned flags )
+{
+   assert(flags);
+
+   if (draw->pt.frontend) {
+      draw->pt.frontend->flush( draw->pt.frontend, flags );
+
+      /* don't prepare if we only are flushing the backend */
+      if (flags & DRAW_FLUSH_STATE_CHANGE)
+         draw->pt.frontend = NULL;
+   }
+
+   if (flags & DRAW_FLUSH_PARAMETER_CHANGE) {
+      draw->pt.rebind_parameters = TRUE;
+   }
+}
+
+
 
 boolean draw_pt_init( struct draw_context *draw )
 {
    draw->pt.test_fse = debug_get_option_draw_fse();
    draw->pt.no_fse = debug_get_option_draw_no_fse();
 
-   draw->pt.front.vcache = draw_pt_vcache( draw );
-   if (!draw->pt.front.vcache)
-      return FALSE;
-
-   draw->pt.front.varray = draw_pt_varray(draw);
-   if (!draw->pt.front.varray)
+   draw->pt.front.vsplit = draw_pt_vsplit(draw);
+   if (!draw->pt.front.vsplit)
       return FALSE;
 
    draw->pt.middle.fetch_emit = draw_pt_fetch_emit( draw );
@@ -164,7 +192,7 @@ boolean draw_pt_init( struct draw_context *draw )
       return FALSE;
 
 #if HAVE_LLVM
-   if (debug_get_option_draw_use_llvm())
+   if (draw->llvm)
       draw->pt.middle.llvm = draw_pt_fetch_pipeline_or_emit_llvm( draw );
 #endif
 
@@ -194,14 +222,9 @@ void draw_pt_destroy( struct draw_context *draw )
       draw->pt.middle.fetch_shade_emit = NULL;
    }
 
-   if (draw->pt.front.vcache) {
-      draw->pt.front.vcache->destroy( draw->pt.front.vcache );
-      draw->pt.front.vcache = NULL;
-   }
-
-   if (draw->pt.front.varray) {
-      draw->pt.front.varray->destroy( draw->pt.front.varray );
-      draw->pt.front.varray = NULL;
+   if (draw->pt.front.vsplit) {
+      draw->pt.front.vsplit->destroy( draw->pt.front.vsplit );
+      draw->pt.front.vsplit = NULL;
    }
 }
 
@@ -221,8 +244,9 @@ draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
       uint ii = 0;
       uint j;
 
-      if (draw->pt.user.elts) {
+      if (draw->pt.user.eltSize) {
          /* indexed arrays */
+
          switch (draw->pt.user.eltSize) {
          case 1:
             {
@@ -258,7 +282,12 @@ draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
 
       for (j = 0; j < draw->pt.nr_vertex_elements; j++) {
          uint buf = draw->pt.vertex_element[j].vertex_buffer_index;
-         ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf];
+         ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf].map;
+
+         if (draw->pt.vertex_element[j].instance_divisor) {
+            ii = draw->instance_id / draw->pt.vertex_element[j].instance_divisor;
+         }
+
          ptr += draw->pt.vertex_buffer[buf].buffer_offset;
          ptr += draw->pt.vertex_buffer[buf].stride * ii;
          ptr += draw->pt.vertex_element[j].src_offset;
@@ -297,6 +326,13 @@ draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
                             (void *) u);
             }
             break;
+         case PIPE_FORMAT_A8R8G8B8_UNORM:
+            {
+               ubyte *u = (ubyte *) ptr;
+               debug_printf("ARGB %d %d %d %d  @ %p\n", u[0], u[1], u[2], u[3],
+                            (void *) u);
+            }
+            break;
          default:
             debug_printf("other format %s (fix me)\n",
                      util_format_name(draw->pt.vertex_element[j].src_format));
@@ -306,52 +342,139 @@ draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count)
 }
 
 
+/** Helper code for below */
+#define PRIM_RESTART_LOOP(elements) \
+   do { \
+      for (i = start; i < end; i++) { \
+         if (i < elt_max && elements[i] == info->restart_index) { \
+            if (cur_count > 0) { \
+               /* draw elts up to prev pos */ \
+               draw_pt_arrays(draw, prim, cur_start, cur_count); \
+            } \
+            /* begin new prim at next elt */ \
+            cur_start = i + 1; \
+            cur_count = 0; \
+         } \
+         else { \
+            cur_count++; \
+         } \
+      } \
+      if (cur_count > 0) { \
+         draw_pt_arrays(draw, prim, cur_start, cur_count); \
+      } \
+   } while (0)
+
+
 /**
- * Non-instanced drawing.
- * \sa draw_arrays_instanced
+ * For drawing prims with primitive restart enabled.
+ * Scan for restart indexes and draw the runs of elements/vertices between
+ * the restarts.
  */
-void
-draw_arrays(struct draw_context *draw, unsigned prim,
-            unsigned start, unsigned count)
+static void
+draw_pt_arrays_restart(struct draw_context *draw,
+                       const struct pipe_draw_info *info)
 {
-   draw_arrays_instanced(draw, prim, start, count, 0, 1);
+   const unsigned prim = info->mode;
+   const unsigned start = info->start;
+   const unsigned count = info->count;
+   const unsigned end = start + count;
+   const unsigned elt_max = draw->pt.user.eltMax;
+   unsigned i, cur_start, cur_count;
+
+   assert(info->primitive_restart);
+
+   if (draw->pt.user.eltSize) {
+      /* indexed prims (draw_elements) */
+      cur_start = start;
+      cur_count = 0;
+
+      switch (draw->pt.user.eltSize) {
+      case 1:
+         {
+            const ubyte *elt_ub = (const ubyte *) draw->pt.user.elts;
+            PRIM_RESTART_LOOP(elt_ub);
+         }
+         break;
+      case 2:
+         {
+            const ushort *elt_us = (const ushort *) draw->pt.user.elts;
+            PRIM_RESTART_LOOP(elt_us);
+         }
+         break;
+      case 4:
+         {
+            const uint *elt_ui = (const uint *) draw->pt.user.elts;
+            PRIM_RESTART_LOOP(elt_ui);
+         }
+         break;
+      default:
+         assert(0 && "bad eltSize in draw_arrays()");
+      }
+   }
+   else {
+      /* Non-indexed prims (draw_arrays).
+       * Primitive restart should have been handled in the state tracker.
+       */
+      draw_pt_arrays(draw, prim, start, count);
+   }
 }
 
 
+/**
+ * Resolve true values within pipe_draw_info.
+ * If we're rendering from transform feedback/stream output
+ * buffers both the count and max_index need to be computed
+ * from the attached stream output target. 
+ */
+static void
+resolve_draw_info(const struct pipe_draw_info *raw_info,
+                  struct pipe_draw_info *info)
+{
+   memcpy(info, raw_info, sizeof(struct pipe_draw_info));
+
+   if (raw_info->count_from_stream_output) {
+      struct draw_so_target *target =
+         (struct draw_so_target *)info->count_from_stream_output;
+      info->count = target->emitted_vertices;
+
+      /* Stream output draw can not be indexed */
+      debug_assert(!info->indexed);
+      info->max_index = info->count - 1;
+   }
+}
+
 /**
  * Draw vertex arrays.
- * This is the main entrypoint into the drawing module.
- * If drawing an indexed primitive, the draw_set_mapped_element_buffer_range()
- * function should have already been called to specify the element/index buffer
- * information.
- *
- * \param prim  one of PIPE_PRIM_x
- * \param start  index of first vertex to draw
- * \param count  number of vertices to draw
- * \param startInstance  number for the first primitive instance (usually 0).
- * \param instanceCount  number of instances to draw (1=non-instanced)
+ * This is the main entrypoint into the drawing module.  If drawing an indexed
+ * primitive, the draw_set_indexes() function should have already been called
+ * to specify the element/index buffer information.
  */
 void
-draw_arrays_instanced(struct draw_context *draw,
-                      unsigned mode,
-                      unsigned start,
-                      unsigned count,
-                      unsigned startInstance,
-                      unsigned instanceCount)
+draw_vbo(struct draw_context *draw,
+         const struct pipe_draw_info *info)
 {
-   unsigned reduced_prim = u_reduced_prim(mode);
    unsigned instance;
+   unsigned index_limit;
+   unsigned count;
+   struct pipe_draw_info resolved_info;
 
-   assert(instanceCount > 0);
+   resolve_draw_info(info, &resolved_info);
+   info = &resolved_info;
 
-   if (reduced_prim != draw->reduced_prim) {
-      draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
-      draw->reduced_prim = reduced_prim;
-   }
+   assert(info->instance_count > 0);
+   if (info->indexed)
+      assert(draw->pt.user.elts);
+
+   count = info->count;
+
+   draw->pt.user.eltBias = info->index_bias;
+   draw->pt.user.min_index = info->min_index;
+   draw->pt.user.max_index = info->max_index;
+   draw->pt.user.eltSize = info->indexed ? draw->pt.user.eltSizeIB : 0;
 
    if (0)
-      debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
-                   mode, start, count);
+      debug_printf("draw_vbo(mode=%u start=%u count=%u):\n",
+                   info->mode, info->start, count);
 
    if (0)
       tgsi_dump(draw->vs.vertex_shader->state.tokens, 0);
@@ -369,20 +492,67 @@ draw_arrays_instanced(struct draw_context *draw,
       }
       debug_printf("Buffers:\n");
       for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
-         debug_printf("  %u: stride=%u maxindex=%u offset=%u ptr=%p\n",
+         debug_printf("  %u: stride=%u offset=%u size=%d ptr=%p\n",
                       i,
                       draw->pt.vertex_buffer[i].stride,
-                      draw->pt.vertex_buffer[i].max_index,
                       draw->pt.vertex_buffer[i].buffer_offset,
-                      draw->pt.user.vbuffer[i]);
+                      (int) draw->pt.user.vbuffer[i].size,
+                      draw->pt.user.vbuffer[i].map);
       }
    }
 
    if (0)
-      draw_print_arrays(draw, mode, start, MIN2(count, 20));
+      draw_print_arrays(draw, info->mode, info->start, MIN2(count, 20));
+
+   index_limit = util_draw_max_index(draw->pt.vertex_buffer,
+                                     draw->pt.vertex_element,
+                                     draw->pt.nr_vertex_elements,
+                                     info);
+#if HAVE_LLVM
+   if (!draw->llvm)
+#endif
+   {
+      if (index_limit == 0) {
+      /* one of the buffers is too small to do any valid drawing */
+         debug_warning("draw: VBO too small to draw anything\n");
+         return;
+      }
+   }
+
+   /* If we're collecting stats then make sure we start from scratch */
+   if (draw->collect_statistics) {
+      memset(&draw->statistics, 0, sizeof(draw->statistics));
+   }
+
+   draw->pt.max_index = index_limit - 1;
+
+   /*
+    * TODO: We could use draw->pt.max_index to further narrow
+    * the min_index/max_index hints given by the state tracker.
+    */
+
+   for (instance = 0; instance < info->instance_count; instance++) {
+      draw->instance_id = instance + info->start_instance;
+      draw->start_instance = info->start_instance;
+      /* check for overflow */
+      if (draw->instance_id < instance ||
+          draw->instance_id < info->start_instance) {
+         /* if we overflown just set the instance id to the max */
+         draw->instance_id = 0xffffffff;
+      }
+
+      draw_new_instance(draw);
+
+      if (info->primitive_restart) {
+         draw_pt_arrays_restart(draw, info);
+      }
+      else {
+         draw_pt_arrays(draw, info->mode, info->start, count);
+      }
+   }
 
-   for (instance = 0; instance < instanceCount; instance++) {
-      draw->instance_id = instance + startInstance;
-      draw_pt_arrays(draw, mode, start, count);
+   /* If requested emit the pipeline statistics for this run */
+   if (draw->collect_statistics) {
+      draw->render->pipeline_statistics(draw->render, &draw->statistics);
    }
 }