Mesa (master): mesa/st: assert that lowering is supported

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Module: Mesa
Branch: master
Commit: 3a71e1d27b041853d5cb5c56c2f143a2e18d476f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3a71e1d27b041853d5cb5c56c2f143a2e18d476f

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Fri Oct 18 14:29:26 2019 +0200

mesa/st: assert that lowering is supported

Some of these lowerings aren't supported for drivers that supports
tesselation and geometry shaders. Let's add a couple of asserts to make
it obvious if these have been enabled when it's not possible.

Signed-off-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>

---

 src/mesa/state_tracker/st_context.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index b54afce0d78..5549d2564d5 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -702,6 +702,18 @@ st_create_context_priv(struct gl_context *ctx, struct pipe_context *pipe,
    st_init_extensions(pipe->screen, &ctx->Const,
                       &ctx->Extensions, &st->options, ctx->API);
 
+   /* FIXME: add support for geometry and tessellation shaders for
+    * lower_point_size
+    */
+   assert(!ctx->Extensions.OES_geometry_shader || !st->lower_point_size);
+   assert(!ctx->Extensions.ARB_tessellation_shader || !st->lower_point_size);
+
+   /* FIXME: add support for geometry and tessellation shaders for
+    * lower_ucp
+    */
+   assert(!ctx->Extensions.OES_geometry_shader || !st->lower_ucp);
+   assert(!ctx->Extensions.ARB_tessellation_shader || !st->lower_ucp);
+
    if (st_have_perfmon(st)) {
       ctx->Extensions.AMD_performance_monitor = GL_TRUE;
    }