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st/mesa: don't serialize all streamout state if there are no SO outputs

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Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This commit is contained in:
Marek Olšák 2019-11-25 17:01:42 -05:00
parent 3fdf2bb313
commit 6cf011fcc8
1 changed files with 15 additions and 4 deletions
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19
src/mesa/state_tracker/st_shader_cache.c
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@ -44,8 +44,13 @@ static void
write_stream_out_to_cache(struct blob *blob,
struct pipe_shader_state *state)
{
blob_write_bytes(blob, &state->stream_output,
sizeof(state->stream_output));
blob_write_uint32(blob, state->stream_output.num_outputs);
if (state->stream_output.num_outputs) {
blob_write_bytes(blob, &state->stream_output.stride,
sizeof(state->stream_output.stride));
blob_write_bytes(blob, &state->stream_output.output,
sizeof(state->stream_output.output));
}
}
static void
@ -139,8 +144,14 @@ static void
read_stream_out_from_cache(struct blob_reader *blob_reader,
struct pipe_shader_state *state)
{
blob_copy_bytes(blob_reader, (uint8_t *) &state->stream_output,
sizeof(state->stream_output));
memset(&state->stream_output, 0, sizeof(state->stream_output));
state->stream_output.num_outputs = blob_read_uint32(blob_reader);
if (state->stream_output.num_outputs) {
blob_copy_bytes(blob_reader, &state->stream_output.stride,
sizeof(state->stream_output.stride));
blob_copy_bytes(blob_reader, &state->stream_output.output,
sizeof(state->stream_output.output));
}
}
static void