Mesa (main): radv: Use pre-computed viewport transform for NGG culling state.

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Module: Mesa
Branch: main
Commit: 6e17931d2120148dd71d5014421303816611df60
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6e17931d2120148dd71d5014421303816611df60

Author: Timur Kristóf <timur.kristof at gmail.com>
Date:   Wed Jul 14 12:47:35 2021 +0200

radv: Use pre-computed viewport transform for NGG culling state.

Signed-off-by: Timur Kristóf <timur.kristof at gmail.com>

Reviewed-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11839>

---

 src/amd/vulkan/radv_cmd_buffer.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index ddf0824d1ea..fa395720d06 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -5796,8 +5796,9 @@ radv_emit_ngg_culling_state(struct radv_cmd_buffer *cmd_buffer, const struct rad
    assert(!nggc_supported || nggc_sgpr_idx != -1);
 
    /* Get viewport transform. */
-   float vp_scale[3], vp_translate[3];
-   radv_get_viewport_xform(&cmd_buffer->state.dynamic.viewport.viewports[0], vp_scale, vp_translate);
+   float vp_scale[2], vp_translate[2];
+   memcpy(vp_scale, cmd_buffer->state.dynamic.viewport.xform[0].scale, 2 * sizeof(float));
+   memcpy(vp_translate, cmd_buffer->state.dynamic.viewport.xform[0].translate, 2 * sizeof(float));
    bool vp_y_inverted = (-vp_scale[1] + vp_translate[1]) > (vp_scale[1] + vp_translate[1]);
 
    /* Get current culling settings. */