draw: check for an integer overflow when computing stride

[mesa.git] / src / gallium / auxiliary / draw / draw_context.c

diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 201c62d945cac8632509f900a2537aa53ffdab12..4a08765c94f5e3a8b2726ec52ae2563eb04b45e2 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -807,36 +807,15 @@ draw_get_rasterizer_no_cull( struct draw_context *draw,
    return draw->rasterizer_no_cull[scissor][flatshade];
 }
 
-/**
- * Sets the mapped so targets.
- *
- * The append bitmask specifies which of the buffers are in
- * the append mode. The append mode means that the buffer
- * should be appended to, rather than written to from the start.
- * i.e. the outputs should be written starting from the last 
- * location to which the previous
- * pass of stream output wrote to in this buffer.
- * If the buffer is not in an append mode (which is more common)
- * the writing begins from the start of the buffer.
- *
- */
 void
 draw_set_mapped_so_targets(struct draw_context *draw,
                            int num_targets,
-                           struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS],
-                           unsigned append_bitmask)
+                           struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS])
 {
    int i;
 
-   for (i = 0; i < num_targets; i++) {
+   for (i = 0; i < num_targets; i++)
       draw->so.targets[i] = targets[i];
-      /* if we're not appending then lets reset the internal
-         data of our so target */
-      if (!(append_bitmask & (1 << i)) && draw->so.targets[i]) {
-         draw->so.targets[i]->internal_offset = 0;
-         draw->so.targets[i]->emitted_vertices = 0;
-      }
-   }
    for (i = num_targets; i < PIPE_MAX_SO_BUFFERS; i++)
       draw->so.targets[i] = NULL;