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svga: check for and skip null vertex buffer pointers

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Fixes regressions with google earth and other things.

Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2012-04-30 14:44:26 -06:00
parent b5752e16e8
commit 8dd3e341b3
1 changed files with 11 additions and 7 deletions
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18
src/gallium/drivers/svga/svga_swtnl_draw.c
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@ -66,12 +66,14 @@ svga_swtnl_draw_vbo(struct svga_context *svga,
* Map vertex buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
map = pipe_buffer_map(&svga->pipe,
svga->curr.vb[i].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[i]);
if (svga->curr.vb[i].buffer) {
map = pipe_buffer_map(&svga->pipe,
svga->curr.vb[i].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[i]);
draw_set_mapped_vertex_buffer(draw, i, map);
draw_set_mapped_vertex_buffer(draw, i, map);
}
}
/* TODO move this to update_swtnl_draw */
@ -109,8 +111,10 @@ svga_swtnl_draw_vbo(struct svga_context *svga,
* unmap vertex/index buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
pipe_buffer_unmap(&svga->pipe, vb_transfer[i]);
draw_set_mapped_vertex_buffer(draw, i, NULL);
if (svga->curr.vb[i].buffer) {
pipe_buffer_unmap(&svga->pipe, vb_transfer[i]);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (ib_transfer) {