diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2013-10-26 13:20:02 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2013-10-31 11:04:37 -0700 |
| commit | c4ec0ad8a90c2023cb77e578d39dddb0cddeada9 (patch) | |
| tree | a79b13e8c0213d96ea3ab4b11183286b25fd6171 | |
| parent | 066fb237e642ec5ebe2c86f89753cba1ad389410 (diff) | |
i965: Enable the ARB_transform_feedback3 extension on Gen7+.
This extension is written a bit strangely. Although it introduces the
concept of multiple transform feedback streams, it doesn't actually
provide more than a single stream.
The ARB_gpu_shader5 extension is what introduces the ability to write to
streams other than stream #0 and increases the required number of streams.
Since we don't yet support ARB_gpu_shader5, we can safely enable
ARB_transform_feedback3 even though we only support a single stream.
This does provide some useful functionality: applications can now use
more than one interleaved transform feedback buffer.
v2: Only expose the extension if ARB_transform_feedback2 is also
available, to avoid confusing applications (suggested by Ian).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_extensions.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c index 337e7e87c4f..31e15bbfb48 100644 --- a/src/mesa/drivers/dri/i965/intel_extensions.c +++ b/src/mesa/drivers/dri/i965/intel_extensions.c @@ -230,6 +230,7 @@ intelInitExtensions(struct gl_context *ctx) ctx->Extensions.ARB_conservative_depth = true; if (can_do_pipelined_register_writes(brw)) { ctx->Extensions.ARB_transform_feedback2 = true; + ctx->Extensions.ARB_transform_feedback3 = true; } } |