draw: clear the draw buffers in draw

[mesa.git] / src / gallium / drivers / llvmpipe / lp_draw_arrays.c

diff --git a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
index 83045d22b5b46539babdad8bd61d8d78b2ff8870..11b665af8ef307c6fd9a740987f1b066208a5488 100644 (file)
--- a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
+++ b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
@@ -37,6 +37,7 @@
 
 #include "lp_context.h"
 #include "lp_state.h"
+#include "lp_query.h"
 
 #include "draw/draw_context.h"
 
@@ -53,7 +54,7 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
 {
    struct llvmpipe_context *lp = llvmpipe_context(pipe);
    struct draw_context *draw = lp->draw;
-   void *mapped_indices = NULL;
+   const void *mapped_indices = NULL;
    unsigned i;
 
    if (!llvmpipe_check_render_cond(lp))
@@ -66,19 +67,60 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
     * Map vertex buffers
     */
    for (i = 0; i < lp->num_vertex_buffers; i++) {
-      void *buf = llvmpipe_resource_data(lp->vertex_buffer[i].buffer);
-      draw_set_mapped_vertex_buffer(draw, i, buf);
+      const void *buf = lp->vertex_buffer[i].user_buffer;
+      size_t size = ~0;
+      if (!buf) {
+         if (!lp->vertex_buffer[i].buffer) {
+            continue;
+         }
+         buf = llvmpipe_resource_data(lp->vertex_buffer[i].buffer);
+         size = lp->vertex_buffer[i].buffer->width0;
+      }
+      draw_set_mapped_vertex_buffer(draw, i, buf, size);
    }
 
    /* Map index buffer, if present */
-   if (info->indexed && lp->index_buffer.buffer)
-      mapped_indices = llvmpipe_resource_data(lp->index_buffer.buffer);
+   if (info->indexed) {
+      unsigned available_space = ~0;
+      mapped_indices = lp->index_buffer.user_buffer;
+      if (!mapped_indices) {
+         mapped_indices = llvmpipe_resource_data(lp->index_buffer.buffer);
+         if (lp->index_buffer.buffer->width0 > lp->index_buffer.offset)
+            available_space =
+               (lp->index_buffer.buffer->width0 - lp->index_buffer.offset);
+         else
+            available_space = 0;
+      }
+      draw_set_indexes(draw,
+                       (ubyte *) mapped_indices + lp->index_buffer.offset,
+                       lp->index_buffer.index_size, available_space);
+   }
 
-   draw_set_mapped_index_buffer(draw, mapped_indices);
+   for (i = 0; i < lp->num_so_targets; i++) {
+      void *buf = 0;
+      if (lp->so_targets[i]) {
+         buf = llvmpipe_resource(lp->so_targets[i]->target.buffer)->data;
+         lp->so_targets[i]->mapping = buf;
+      }
+   }
+   draw_set_mapped_so_targets(draw, lp->num_so_targets,
+                              lp->so_targets, lp->so_append_bitmask);
 
    llvmpipe_prepare_vertex_sampling(lp,
-                                    lp->num_vertex_sampler_views,
-                                    lp->vertex_sampler_views);
+                                    lp->num_sampler_views[PIPE_SHADER_VERTEX],
+                                    lp->sampler_views[PIPE_SHADER_VERTEX]);
+   llvmpipe_prepare_geometry_sampling(lp,
+                                      lp->num_sampler_views[PIPE_SHADER_GEOMETRY],
+                                      lp->sampler_views[PIPE_SHADER_GEOMETRY]);
+   if (lp->gs && !lp->gs->shader.tokens) {
+      /* we have an empty geometry shader with stream output, so
+         attach the stream output info to the current vertex shader */
+      if (lp->vs) {
+         draw_vs_attach_so(lp->vs->draw_data, &lp->gs->shader.stream_output);
+      }
+   }
+   draw_collect_pipeline_statistics(draw,
+                                    lp->active_statistics_queries > 0);
 
    /* draw! */
    draw_vbo(draw, info);
@@ -87,12 +129,23 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
     * unmap vertex/index buffers
     */
    for (i = 0; i < lp->num_vertex_buffers; i++) {
-      draw_set_mapped_vertex_buffer(draw, i, NULL);
+      draw_set_mapped_vertex_buffer(draw, i, NULL, 0);
    }
    if (mapped_indices) {
-      draw_set_mapped_index_buffer(draw, NULL);
+      draw_set_indexes(draw, NULL, 0, 0);
+   }
+   draw_set_mapped_so_targets(draw, 0, NULL, 0);
+
+   if (lp->gs && !lp->gs->shader.tokens) {
+      /* we have attached stream output to the vs for rendering,
+         now lets reset it */
+      if (lp->vs) {
+         draw_vs_reset_so(lp->vs->draw_data);
+      }
    }
+   
    llvmpipe_cleanup_vertex_sampling(lp);
+   llvmpipe_cleanup_geometry_sampling(lp);
 
    /*
     * TODO: Flush only when a user vertex/index buffer is present