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authorBas Nieuwenhuizen <[email protected]>2018-07-23 16:24:02 +0200
committerBas Nieuwenhuizen <[email protected]>2018-08-14 22:13:09 +0200
commit66e12451ac4e4e1c05a48b2cd2b0d3186f779f20 (patch)
tree6eb64636f51d88b1e44974530340c45f7f26a7c6
parent4bb6c49375ecc36b32331cc53f90c89d0eb4c8f0 (diff)
radv: Update to new VK_EXT_vertex_attribute_divisor to version 2.
Behavior wrt firstInstance got changed, and a divisor of 0 has been disallowed. The new version of the ext got published in specification 1.1.81. Sending to stable since the only known user is DXVK, which needs this for correctness. Reviewed-by: Samuel Pitoiset <[email protected]> CC: 18.2 <[email protected]>
-rw-r--r--src/amd/vulkan/radv_extensions.py2
-rw-r--r--src/amd/vulkan/radv_nir_to_llvm.c7
2 files changed, 5 insertions, 4 deletions
diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
index 8b5eee867ac..b5b9c137927 100644
--- a/src/amd/vulkan/radv_extensions.py
+++ b/src/amd/vulkan/radv_extensions.py
@@ -105,7 +105,7 @@ EXTENSIONS = [
Extension('VK_EXT_sampler_filter_minmax', 1, 'device->rad_info.chip_class >= CIK'),
Extension('VK_EXT_shader_viewport_index_layer', 1, True),
Extension('VK_EXT_shader_stencil_export', 1, True),
- Extension('VK_EXT_vertex_attribute_divisor', 1, True),
+ Extension('VK_EXT_vertex_attribute_divisor', 2, True),
Extension('VK_AMD_draw_indirect_count', 1, True),
Extension('VK_AMD_gcn_shader', 1, True),
Extension('VK_AMD_rasterization_order', 1, 'device->has_out_of_order_rast'),
diff --git a/src/amd/vulkan/radv_nir_to_llvm.c b/src/amd/vulkan/radv_nir_to_llvm.c
index 64b6522cd93..bfd8b562e5c 100644
--- a/src/amd/vulkan/radv_nir_to_llvm.c
+++ b/src/amd/vulkan/radv_nir_to_llvm.c
@@ -1991,8 +1991,7 @@ handle_vs_input_decl(struct radv_shader_context *ctx,
uint32_t divisor = ctx->options->key.vs.instance_rate_divisors[attrib_index];
if (divisor) {
- buffer_index = LLVMBuildAdd(ctx->ac.builder, ctx->abi.instance_id,
- ctx->abi.start_instance, "");
+ buffer_index = ctx->abi.instance_id;
if (divisor != 1) {
buffer_index = LLVMBuildUDiv(ctx->ac.builder, buffer_index,
@@ -2007,8 +2006,10 @@ handle_vs_input_decl(struct radv_shader_context *ctx,
MAX2(1, ctx->shader_info->vs.vgpr_comp_cnt);
}
} else {
- buffer_index = ctx->ac.i32_0;
+ unreachable("Invalid vertex attribute divisor of 0.");
}
+
+ buffer_index = LLVMBuildAdd(ctx->ac.builder, ctx->abi.start_instance, buffer_index, "");
} else
buffer_index = LLVMBuildAdd(ctx->ac.builder, ctx->abi.vertex_id,
ctx->abi.base_vertex, "");