[Mesa-dev] [PATCH 1/5] swr: don't advertise stream pause/resume

[Rowley, Timothy O]

Reviewed-by: Tim Rowley <timothy.o.rowley at intel.com<mailto:timothy.o.rowley at intel.com>>

On Nov 29, 2016, at 8:23 PM, Ilia Mirkin <imirkin at alum.mit.edu<mailto:imirkin at alum.mit.edu>> wrote:

There is no support for resuming streamout. Furthermore, this also
controls glDrawTransformFeedback functionality which requires the same
ability to query how many primitives were sent out of TF.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu<mailto:imirkin at alum.mit.edu>>
---

I have a partially-working patch for bringing this back, but it's not 100%
quite yet - some sort of issues with concurrency I have yet to track down.

However in the current state, this is just totally not supported by the FE
(but the swr core does do this).

src/gallium/drivers/swr/swr_screen.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/swr/swr_screen.cpp b/src/gallium/drivers/swr/swr_screen.cpp
index 19bb102..e184548 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -232,7 +232,6 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
   case PIPE_CAP_USER_VERTEX_BUFFERS:
   case PIPE_CAP_USER_INDEX_BUFFERS:
   case PIPE_CAP_USER_CONSTANT_BUFFERS:
-   case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
   case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
   case PIPE_CAP_QUERY_TIMESTAMP:
   case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
@@ -311,6 +310,7 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
   case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
   case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
   case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
+   case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
      return 0;

   case PIPE_CAP_VENDOR_ID:
--
2.7.3


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