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// Copyright (c) 2024-2025 The Khronos Group Inc.
// Copyright (c) 2024-2025 Valve Corporation
// Copyright (c) 2024-2025 LunarG, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// NOTE: This file doesn't contain any entrypoints and should be compiled with the --no-link option for glslang
#version 450
#extension GL_GOOGLE_include_directive : enable
#include "common_descriptor_sets.h"
layout(set = kInstDefaultDescriptorSet, binding = kBindingInstVertexAttributeFetchLimits, scalar)
readonly buffer VertexAttributeFetchLimits {
uint has_max_vbb_vertex_input_rate;
uint vertex_attribute_fetch_limit_vertex_input_rate;
uint has_max_vbb_instance_input_rate;
uint vertex_attribute_fetch_limit_instance_input_rate;
};
void inst_vertex_attribute_fetch_oob(const uvec4 stage_info)
{
const uint vertex_index = stage_info[1];
const uint instance_index = stage_info[2];
bool valid_vertex_attribute_fetch_vertex_input_rate = true;
bool valid_vertex_attribute_fetch_instance_input_rate = true;
if (has_max_vbb_vertex_input_rate == 1u) {
valid_vertex_attribute_fetch_vertex_input_rate = vertex_index < vertex_attribute_fetch_limit_vertex_input_rate;
}
if (has_max_vbb_instance_input_rate == 1u) {
valid_vertex_attribute_fetch_instance_input_rate = instance_index < vertex_attribute_fetch_limit_instance_input_rate;
}
if (!valid_vertex_attribute_fetch_vertex_input_rate || !valid_vertex_attribute_fetch_instance_input_rate) {
const uint cmd_id = inst_error_logger_index_buffer.index[0];
const uint cmd_errors_count = atomicAdd(inst_cmd_errors_count_buffer.errors_count[cmd_id], 1);
const bool max_cmd_errors_count_reached = cmd_errors_count >= kMaxErrorsPerCmd;
if (max_cmd_errors_count_reached) return;
uint write_pos = atomicAdd(inst_errors_buffer.written_count, kErrorRecordSize);
const bool errors_buffer_not_filled = (write_pos + kErrorRecordSize) <= uint(inst_errors_buffer.data.length());
if (errors_buffer_not_filled) {
const uint error = valid_vertex_attribute_fetch_vertex_input_rate ? kErrorSubCode_IndexedDraw_OOBInstanceIndex : kErrorSubCode_IndexedDraw_OOBVertexIndex;
inst_errors_buffer.data[write_pos + kHeaderErrorRecordSizeOffset] = kErrorRecordSize;
inst_errors_buffer.data[write_pos + kHeaderShaderIdErrorOffset] = SpecConstantLinkShaderId | (kErrorGroupInstIndexedDraw << kErrorGroupShift) | (error << kErrorSubCodeShift);
// The shader stage is irrelevant because we know it is a vertex shader
inst_errors_buffer.data[write_pos + kHeaderStageInstructionIdOffset] = stage_info[0] << kStageIdShift;
inst_errors_buffer.data[write_pos + kHeaderStageInfoOffset_0] = stage_info[1];
inst_errors_buffer.data[write_pos + kHeaderStageInfoOffset_1] = stage_info[2];
inst_errors_buffer.data[write_pos + kHeaderStageInfoOffset_2] = stage_info[3];
inst_errors_buffer.data[write_pos + kHeaderActionIdErrorLoggerIdOffset] = (inst_action_index_buffer.index[0] << kActionIdShift) | inst_error_logger_index_buffer.index[0];
}
}
}
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