[PATCH 3/6] wined3d: Set an array of stream sources as a single CS operation.
Henri Verbeet
hverbeet at gmail.com
Thu Jul 8 08:31:48 CDT 2021
On Thu, 8 Jul 2021 at 01:13, Zebediah Figura <zfigura at codeweavers.com> wrote:
> @@ -841,26 +841,26 @@ static void STDMETHODCALLTYPE d3d11_device_context_IASetInputLayout(ID3D11Device
> static void STDMETHODCALLTYPE d3d11_device_context_IASetVertexBuffers(ID3D11DeviceContext1 *iface,
> UINT start_slot, UINT buffer_count, ID3D11Buffer *const *buffers, const UINT *strides, const UINT *offsets)
> {
> + struct wined3d_stream_state streams[D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT];
> struct d3d11_device_context *context = impl_from_ID3D11DeviceContext1(iface);
> unsigned int i;
>
> TRACE("iface %p, start_slot %u, buffer_count %u, buffers %p, strides %p, offsets %p.\n",
> iface, start_slot, buffer_count, buffers, strides, offsets);
>
> - wined3d_mutex_lock();
> for (i = 0; i < buffer_count; ++i)
> {
> struct d3d_buffer *buffer = unsafe_impl_from_ID3D11Buffer(buffers[i]);
> - struct wined3d_stream_state stream;
>
> - stream.buffer = buffer ? buffer->wined3d_buffer : NULL;
> - stream.offset = offsets[i];
> - stream.stride = strides[i];
> - stream.frequency = 1;
> - stream.flags = 0;
> -
> - wined3d_device_context_set_stream_source(context->wined3d_context, start_slot + i, &stream);
> + streams[i].buffer = buffer ? buffer->wined3d_buffer : NULL;
> + streams[i].offset = offsets[i];
> + streams[i].stride = strides[i];
> + streams[i].frequency = 1;
> + streams[i].flags = 0;
> }
> +
> + wined3d_mutex_lock();
> + wined3d_device_context_set_stream_sources(context->wined3d_context, start_slot, buffer_count, streams);
> wined3d_mutex_unlock();
> }
>
Somewhat like the stream output patch, this changes behaviour; where
previously we'd ignore invalid stream indices and print a WARN, we'd
now write past the end of the streams[] buffer.
> -HRESULT CDECL wined3d_device_context_set_stream_source(struct wined3d_device_context *context,
> - unsigned int stream_idx, const struct wined3d_stream_state *src_stream)
> +HRESULT CDECL wined3d_device_context_set_stream_sources(struct wined3d_device_context *context,
> + unsigned int start_idx, unsigned int count, const struct wined3d_stream_state *streams)
> {
> - struct wined3d_buffer *buffer = src_stream->buffer;
> - struct wined3d_stream_state *dst_stream;
> - struct wined3d_buffer *prev_buffer;
> + struct wined3d_state *state = context->state;
> + unsigned int i;
>
> - TRACE("context %p, stream_idx %u, src_stream %p.\n", context, stream_idx, src_stream);
> + TRACE("context %p, start_idx %u, count %u, streams %p.\n", context, start_idx, count, streams);
>
> - if (stream_idx >= WINED3D_MAX_STREAMS)
> + if (!wined3d_bound_range(start_idx, count, WINED3D_MAX_STREAMS))
> {
> - WARN("Stream index %u out of range.\n", stream_idx);
> - return WINED3DERR_INVALIDCALL;
> - }
> - else if (src_stream->offset & 0x3)
> - {
> - WARN("Offset %u is not 4 byte aligned.\n", src_stream->offset);
> + WARN("Start index %u is out of range.\n", start_idx);
> return WINED3DERR_INVALIDCALL;
> }
>
> - dst_stream = &context->state->streams[stream_idx];
> - prev_buffer = dst_stream->buffer;
> + count = min(count, WINED3D_MAX_STREAMS - start_idx);
>
> - if (!memcmp(src_stream, dst_stream, sizeof(*src_stream)))
> + for (i = 0; i < count; ++i)
> {
> - TRACE("Application is setting the old values over, nothing to do.\n");
> + if (streams[i].offset & 0x3)
> + {
> + WARN("Offset %u is not 4 byte aligned.\n", streams[i].offset);
> + return WINED3DERR_INVALIDCALL;
> + }
> + }
> +
> + if (!memcmp(streams, &state->streams[start_idx], count * sizeof(*streams)))
> return WINED3D_OK;
> - }
>
> - *dst_stream = *src_stream;
> - if (buffer)
> - wined3d_buffer_incref(buffer);
> - wined3d_device_context_emit_set_stream_source(context, stream_idx, src_stream);
> - if (prev_buffer)
> - wined3d_buffer_decref(prev_buffer);
> + wined3d_device_context_emit_set_stream_sources(context, start_idx, count, streams);
> + for (i = 0; i < count; ++i)
> + {
> + struct wined3d_buffer *prev = state->streams[start_idx + i].buffer;
> + struct wined3d_buffer *buffer = streams[i].buffer;
> +
> + state->streams[start_idx + i] = streams[i];
> +
> + if (buffer)
> + wined3d_buffer_incref(buffer);
> + if (prev)
> + wined3d_buffer_decref(prev);
> + }
>
> return WINED3D_OK;
> }
And here we end up rejecting the entire call if any of the streams are
invalid. That seems entirely reasonable, but I'd still feel better
about it if it was a separate change.
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