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iris: allow binding a null vertex buffer

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PBO upload apparently does this...
This commit is contained in:
Kenneth Graunke 2018-11-02 14:54:35 -07:00
parent aef1ba5ce4
commit 317ba8796f
1 changed files with 7 additions and 3 deletions
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10
src/gallium/drivers/iris/iris_state.c
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@ -2259,9 +2259,13 @@ iris_set_vertex_buffers(struct pipe_context *ctx,
vb.MOCS = MOCS_WB;
vb.AddressModifyEnable = true;
vb.BufferPitch = buffers[i].stride;
vb.BufferSize = res->bo->size;
vb.BufferStartingAddress =
ro_bo(NULL, res->bo->gtt_offset + buffers[i].buffer_offset);
if (res) {
vb.BufferSize = res->bo->size;
vb.BufferStartingAddress =
ro_bo(NULL, res->bo->gtt_offset + buffers[i].buffer_offset);
} else {
vb.NullVertexBuffer = true;
}
}
vb_pack_dest += GENX(VERTEX_BUFFER_STATE_length);