780240e697
On AMD a subpixel offset of 1/512 of the texel size is applied to the texture coordinates at a ImageGather call to ensure the rounding at the texel centers is done the same way as in Maxwell or other Nvidia architectures. See https://www.reedbeta.com/blog/texture-gathers-and-coordinate-precision/ for more details why this might be necessary. This should fix shadow artifacts at object edges in Zelda: Breath of the Wild (#9957, #6956).
85 lines
3.3 KiB
C++
85 lines
3.3 KiB
C++
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "common/common_types.h"
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namespace Shader {
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struct Profile {
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u32 supported_spirv{0x00010000};
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bool unified_descriptor_binding{};
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bool support_descriptor_aliasing{};
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bool support_int8{};
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bool support_int16{};
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bool support_int64{};
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bool support_vertex_instance_id{};
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bool support_float_controls{};
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bool support_separate_denorm_behavior{};
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bool support_separate_rounding_mode{};
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bool support_fp16_denorm_preserve{};
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bool support_fp32_denorm_preserve{};
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bool support_fp16_denorm_flush{};
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bool support_fp32_denorm_flush{};
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bool support_fp16_signed_zero_nan_preserve{};
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bool support_fp32_signed_zero_nan_preserve{};
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bool support_fp64_signed_zero_nan_preserve{};
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bool support_explicit_workgroup_layout{};
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bool support_vote{};
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bool support_viewport_index_layer_non_geometry{};
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bool support_viewport_mask{};
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bool support_typeless_image_loads{};
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bool support_demote_to_helper_invocation{};
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bool support_int64_atomics{};
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bool support_derivative_control{};
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bool support_geometry_shader_passthrough{};
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bool support_native_ndc{};
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bool support_gl_nv_gpu_shader_5{};
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bool support_gl_amd_gpu_shader_half_float{};
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bool support_gl_texture_shadow_lod{};
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bool support_gl_warp_intrinsics{};
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bool support_gl_variable_aoffi{};
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bool support_gl_sparse_textures{};
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bool support_gl_derivative_control{};
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bool warp_size_potentially_larger_than_guest{};
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bool lower_left_origin_mode{};
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/// Fragment outputs have to be declared even if they are not written to avoid undefined values.
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/// See Ori and the Blind Forest's main menu for reference.
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bool need_declared_frag_colors{};
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/// Prevents fast math optimizations that may cause inaccuracies
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bool need_fastmath_off{};
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/// Some GPU vendors use a lower fixed point format of 16.8 when calculating pixel coordinates
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/// in the ImageGather instruction than the Maxwell architecture does. Applying an offset does
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/// fix this mismatching rounding behaviour.
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bool need_gather_subpixel_offset{};
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/// OpFClamp is broken and OpFMax + OpFMin should be used instead
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bool has_broken_spirv_clamp{};
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/// The Position builtin needs to be wrapped in a struct when used as an input
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bool has_broken_spirv_position_input{};
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/// Offset image operands with an unsigned type do not work
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bool has_broken_unsigned_image_offsets{};
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/// Signed instructions with unsigned data types are misinterpreted
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bool has_broken_signed_operations{};
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/// Float controls break when fp16 is enabled
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bool has_broken_fp16_float_controls{};
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/// Dynamic vec4 indexing is broken on some OpenGL drivers
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bool has_gl_component_indexing_bug{};
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/// The precise type qualifier is broken in the fragment stage of some drivers
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bool has_gl_precise_bug{};
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/// Some drivers do not properly support floatBitsToUint when used on cbufs
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bool has_gl_cbuf_ftou_bug{};
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/// Some drivers poorly optimize boolean variable references
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bool has_gl_bool_ref_bug{};
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/// Ignores SPIR-V ordered vs unordered using GLSL semantics
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bool ignore_nan_fp_comparisons{};
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u32 gl_max_compute_smem_size{};
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};
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} // namespace Shader
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