Mesa (master): radv: check if dynamic VRS state changed

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Module: Mesa
Branch: master
Commit: 892987e3a0f65e1ab2806f8bcba82561bbe5ef7d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=892987e3a0f65e1ab2806f8bcba82561bbe5ef7d

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Fri Mar  5 14:15:37 2021 +0100

radv: check if dynamic VRS state changed

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9458>

---

 src/amd/vulkan/radv_cmd_buffer.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 5fb2d1a72a6..74e12f4f69d 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -4912,6 +4912,12 @@ void radv_CmdSetFragmentShadingRateKHR(
 	RADV_FROM_HANDLE(radv_cmd_buffer, cmd_buffer, commandBuffer);
 	struct radv_cmd_state *state = &cmd_buffer->state;
 
+	if (state->dynamic.fragment_shading_rate.size.width == pFragmentSize->width &&
+	    state->dynamic.fragment_shading_rate.size.height == pFragmentSize->height &&
+	    state->dynamic.fragment_shading_rate.combiner_ops[0] == combinerOps[0] &&
+	    state->dynamic.fragment_shading_rate.combiner_ops[1] == combinerOps[1])
+		return;
+
 	state->dynamic.fragment_shading_rate.size = *pFragmentSize;
 	for (unsigned i = 0; i < 2; i++)
 		state->dynamic.fragment_shading_rate.combiner_ops[i] = combinerOps[i];