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path: root/src/gallium/drivers/r300/r300_render.c
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Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
-rw-r--r--src/gallium/drivers/r300/r300_render.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index 987fbaf6a4..7c4294bc9f 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -681,11 +681,13 @@ static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
r300_update_derived_state(r300);
for (i = 0; i < r300->vertex_buffer_count; i++) {
- void* buf = pipe_buffer_map(pipe,
- r300->vertex_buffer[i].buffer,
- PIPE_TRANSFER_READ,
- &vb_transfer[i]);
- draw_set_mapped_vertex_buffer(r300->draw, i, buf);
+ if (r300->vertex_buffer[i].buffer) {
+ void *buf = pipe_buffer_map(pipe,
+ r300->vertex_buffer[i].buffer,
+ PIPE_TRANSFER_READ,
+ &vb_transfer[i]);
+ draw_set_mapped_vertex_buffer(r300->draw, i, buf);
+ }
}
if (info->indexed && r300->index_buffer.buffer) {
@@ -709,9 +711,11 @@ static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
draw_flush(r300->draw);
for (i = 0; i < r300->vertex_buffer_count; i++) {
- pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
- vb_transfer[i]);
- draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
+ if (r300->vertex_buffer[i].buffer) {
+ pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
+ vb_transfer[i]);
+ draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
+ }
}
if (ib_transfer) {
@@ -796,6 +800,8 @@ static void* r300_render_map_vertices(struct vbuf_render* render)
PIPE_TRANSFER_WRITE,
&r300render->vbo_transfer);
+ assert(r300render->vbo_ptr);
+
return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset);
}