--- /dev/null
+/*
+ * Copyright © 2016 Red Hat.
+ * Copyright © 2016 Bas Nieuwenhuizen
+ * Copyright © 2023 Valve Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "nir.h"
+#include "nir_builder.h"
+#include "radv_nir.h"
+
+bool
+radv_nir_lower_viewport_to_zero(nir_shader *nir)
+{
+ nir_function_impl *impl = nir_shader_get_entrypoint(nir);
+ bool progress = false;
+
+ nir_builder b;
+ nir_builder_init(&b, impl);
+
+ /* There should be only one deref load for VIEWPORT after lower_io_to_temporaries. */
+ nir_foreach_block (block, impl) {
+ nir_foreach_instr (instr, block) {
+ if (instr->type != nir_instr_type_intrinsic)
+ continue;
+
+ nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
+ if (intr->intrinsic != nir_intrinsic_load_deref)
+ continue;
+
+ nir_variable *var = nir_intrinsic_get_var(intr, 0);
+ if (var->data.mode != nir_var_shader_in || var->data.location != VARYING_SLOT_VIEWPORT)
+ continue;
+
+ b.cursor = nir_before_instr(instr);
+
+ nir_ssa_def_rewrite_uses(&intr->dest.ssa, nir_imm_zero(&b, 1, 32));
+ progress = true;
+ break;
+ }
+ if (progress)
+ break;
+ }
+
+ if (progress)
+ nir_metadata_preserve(impl, nir_metadata_block_index | nir_metadata_dominance);
+ else
+ nir_metadata_preserve(impl, nir_metadata_all);
+
+ return progress;
+}
return &radv_get_last_vgt_shader(pipeline)->info.outinfo;
}
-static bool
-radv_lower_viewport_to_zero(nir_shader *nir)
-{
- nir_function_impl *impl = nir_shader_get_entrypoint(nir);
- bool progress = false;
-
- nir_builder b;
- nir_builder_init(&b, impl);
-
- /* There should be only one deref load for VIEWPORT after lower_io_to_temporaries. */
- nir_foreach_block(block, impl) {
- nir_foreach_instr(instr, block) {
- if (instr->type != nir_instr_type_intrinsic)
- continue;
-
- nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
- if (intr->intrinsic != nir_intrinsic_load_deref)
- continue;
-
- nir_variable *var = nir_intrinsic_get_var(intr, 0);
- if (var->data.mode != nir_var_shader_in ||
- var->data.location != VARYING_SLOT_VIEWPORT)
- continue;
-
- b.cursor = nir_before_instr(instr);
-
- nir_ssa_def_rewrite_uses(&intr->dest.ssa, nir_imm_zero(&b, 1, 32));
- progress = true;
- break;
- }
- if (progress)
- break;
- }
-
- if (progress)
- nir_metadata_preserve(impl, nir_metadata_block_index | nir_metadata_dominance);
- else
- nir_metadata_preserve(impl, nir_metadata_all);
-
- return progress;
-}
-
static nir_variable *
find_layer_out_var(nir_shader *nir)
{
/* Lower the viewport index to zero when the last vertex stage doesn't export it. */
if ((consumer->info.inputs_read & VARYING_BIT_VIEWPORT) &&
!(producer->info.outputs_written & VARYING_BIT_VIEWPORT)) {
- NIR_PASS(_, consumer, radv_lower_viewport_to_zero);
+ NIR_PASS(_, consumer, radv_nir_lower_viewport_to_zero);
}
/* Lower the view index to map on the layer. */