softpipe: minor clean-ups in sp_quad_depth_test.c

[mesa.git] / src / gallium / drivers / softpipe / sp_state_so.c

diff --git a/src/gallium/drivers/softpipe/sp_state_so.c b/src/gallium/drivers/softpipe/sp_state_so.c
index 8bd20cd2acaf10e3dd2e3f9cec1714b3232718a6..ddfa3ef765aa26c3a67c43bf9092aafc64c9e170 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_state_so.c
+++ b/src/gallium/drivers/softpipe/sp_state_so.c
@@ -34,7 +34,7 @@
 #include "draw/draw_context.h"
 
 
-void *
+static void *
 softpipe_create_stream_output_state(struct pipe_context *pipe,
                                     const struct pipe_stream_output_state *templ)
 {
@@ -57,7 +57,8 @@ softpipe_create_stream_output_state(struct pipe_context *pipe,
    return so;
 }
 
-void
+
+static void
 softpipe_bind_stream_output_state(struct pipe_context *pipe,
                                   void *so)
 {
@@ -72,13 +73,15 @@ softpipe_bind_stream_output_state(struct pipe_context *pipe,
       draw_set_so_state(softpipe->draw, &sp_so->base);
 }
 
-void
+
+static void
 softpipe_delete_stream_output_state(struct pipe_context *pipe, void *so)
 {
    FREE( so );
 }
 
-void
+
+static void
 softpipe_set_stream_output_buffers(struct pipe_context *pipe,
                                    struct pipe_resource **buffers,
                                    int *offsets,
@@ -89,6 +92,8 @@ softpipe_set_stream_output_buffers(struct pipe_context *pipe,
    void *map_buffers[PIPE_MAX_SO_BUFFERS];
 
    assert(num_buffers <= PIPE_MAX_SO_BUFFERS);
+   if (num_buffers > PIPE_MAX_SO_BUFFERS)
+      num_buffers = PIPE_MAX_SO_BUFFERS;
 
    softpipe->dirty |= SP_NEW_SO_BUFFERS;
 
@@ -96,6 +101,13 @@ softpipe_set_stream_output_buffers(struct pipe_context *pipe,
       void *mapped;
       struct softpipe_resource *res = softpipe_resource(buffers[i]);
 
+      if (!res) {
+         /* the whole call is invalid, bail out */
+         softpipe->so_target.num_buffers = 0;
+         draw_set_mapped_so_buffers(softpipe->draw, 0, 0);
+         return;
+      }
+
       softpipe->so_target.buffer[i] = res;
       softpipe->so_target.offset[i] = offsets[i];
       softpipe->so_target.so_count[i] = 0;
@@ -113,3 +125,16 @@ softpipe_set_stream_output_buffers(struct pipe_context *pipe,
 
    draw_set_mapped_so_buffers(softpipe->draw, map_buffers, num_buffers);
 }
+
+
+
+void
+softpipe_init_streamout_funcs(struct pipe_context *pipe)
+{
+   pipe->create_stream_output_state = softpipe_create_stream_output_state;
+   pipe->bind_stream_output_state = softpipe_bind_stream_output_state;
+   pipe->delete_stream_output_state = softpipe_delete_stream_output_state;
+
+   pipe->set_stream_output_buffers = softpipe_set_stream_output_buffers;
+}
+