panfrost: Don't accidentally include blend shader

Some residual dirty state can leak through across frames; zero this out.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
index f703300..7f5741d 100644 (file)
--- a/src/gallium/drivers/panfrost/pan_context.c
+++ b/src/gallium/drivers/panfrost/pan_context.c
@@ -1141,6 +1141,8 @@ panfrost_emit_for_draw(struct panfrost_context *ctx, bool with_vertex_data)
 
                 if (ctx->blend->has_blend_shader) {
                         ctx->fragment_shader_core.blend.shader = ctx->blend->blend_shader;
+                } else {
+                        ctx->fragment_shader_core.blend.shader = 0;
                 }
 
                 if (ctx->require_sfbd) {