radv: improve a comment in si_emit_set_predication_state()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c
index 435878c3722594d75aad55ceb22f85c8020e213c..1464c913cd632215b2b12acd776040dcdf98dc10 100644 (file)
--- a/src/amd/vulkan/si_cmd_buffer.c
+++ b/src/amd/vulkan/si_cmd_buffer.c
@@ -1004,21 +1004,19 @@ si_emit_cache_flush(struct radv_cmd_buffer *cmd_buffer)
 /* sets the CP predication state using a boolean stored at va */
 void
 si_emit_set_predication_state(struct radv_cmd_buffer *cmd_buffer,
-                             bool inverted, uint64_t va)
+                             bool draw_visible, uint64_t va)
 {
        uint32_t op = 0;
 
        if (va) {
                op = PRED_OP(PREDICATION_OP_BOOL64);
 
-               /* By default, our internal rendering commands are discarded
-                * only if the predicate is non-zero (ie. DRAW_VISIBLE). But
-                * VK_EXT_conditional_rendering also allows to discard commands
-                * when the predicate is zero, which means we have to use a
-                * different flag.
+               /* PREDICATION_DRAW_VISIBLE means that if the 32-bit value is
+                * zero, all rendering commands are discarded. Otherwise, they
+                * are discarded if the value is non zero.
                 */
-               op |= inverted ? PREDICATION_DRAW_VISIBLE :
-                                PREDICATION_DRAW_NOT_VISIBLE;
+               op |= draw_visible ? PREDICATION_DRAW_VISIBLE :
+                                    PREDICATION_DRAW_NOT_VISIBLE;
        }
        if (cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9) {
                radeon_emit(cmd_buffer->cs, PKT3(PKT3_SET_PREDICATION, 2, 0));