The buffer_size does not take the offset into account. Just add the
offset into the pointer which lines up the structures much better.
Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---
This doesn't really fix anything right now, but logically the streamOffset
is incremented on each draw, and is optionally written back out as a watermark
indicator (for pausing/resuming streams). So it should be relative to the
logical start of the buffer.
src/gallium/drivers/swr/swr_state.cpp | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/swr/swr_state.cpp
b/src/gallium/drivers/swr/swr_state.cpp
index fc835dc..4475252 100644
--- a/src/gallium/drivers/swr/swr_state.cpp
+++ b/src/gallium/drivers/swr/swr_state.cpp
@@ -1488,10 +1488,11 @@ swr_update_derived(struct pipe_context *pipe,
continue;
buffer.enable = true;
buffer.pBuffer =
- (uint32_t *)swr_resource_data(ctx->so_targets[i]->buffer);
+ (uint32_t *)(swr_resource_data(ctx->so_targets[i]->buffer) +
+ ctx->so_targets[i]->buffer_offset);
buffer.bufferSize = ctx->so_targets[i]->buffer_size >> 2;
buffer.pitch = stream_output->stride[i];
- buffer.streamOffset = ctx->so_targets[i]->buffer_offset >> 2;
+ buffer.streamOffset = 0;
SwrSetSoBuffers(ctx->swrContext, &buffer, i);
}
--
2.7.3
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