Mesa (master): mesa: don't unroll glMultiDrawElements if one count is 0

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Module: Mesa
Branch: master
Commit: e636a062f1a555f8795b3e75d6f32c5042038ab1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e636a062f1a555f8795b3e75d6f32c5042038ab1

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Wed Feb 12 17:21:35 2020 -0500

mesa: don't unroll glMultiDrawElements if one count is 0

let the driver skip or submit an empty draw call.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3990>

---

 src/mesa/main/draw.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/src/mesa/main/draw.c b/src/mesa/main/draw.c
index 3a7c390784d..aa4934fdb27 100644
--- a/src/mesa/main/draw.c
+++ b/src/mesa/main/draw.c
@@ -1212,16 +1212,6 @@ _mesa_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
       }
    }
 
-   /* Draw primitives individually if one count is zero, so we can easily skip
-    * that primitive.
-    */
-   for (i = 0; i < primcount; i++) {
-      if (count[i] == 0) {
-         fallback = GL_TRUE;
-         break;
-      }
-   }
-
    /* If the index buffer isn't in a VBO, then treating the application's
     * subranges of the index buffer as one large index buffer may lead to
     * us reading unmapped memory.