88ace032a6
Adds support for Storage buffers, including changes to the resource binding model to ensure explicit resource bind locations are supported for all resource types. Storage buffer support also includes required changes for shader source generation and SSBO wrapper support for other resource types such as GPUVertBuf, GPUIndexBuf and GPUUniformBuf. Authored by Apple: Michael Parkin-White Pull Request: https://projects.blender.org/blender/blender/pulls/107175
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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namespace blender {
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namespace gpu {
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/*** Derived from: https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf ***/
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/** Upper Bound/Fixed Limits **/
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#define MTL_MAX_TEXTURE_SLOTS 128
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#define MTL_MAX_SAMPLER_SLOTS MTL_MAX_TEXTURE_SLOTS
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/* Max limit without using bind-less for samplers. */
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#define MTL_MAX_DEFAULT_SAMPLERS 16
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/* Total maximum buffers which can be bound to an encoder, for use within a shader.
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* Uniform buffers and storage buffers share the set of available bind buffers.
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* The total number of buffer bindings must be <= MTL_MAX_BUFFER_BINDINGS
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* We also require an additional 3 core buffers for:
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* - Argument buffer for bindless resources (e.g. samplers)
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* - Transform feedback buffer
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* - Default push constant block
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* Along with up to 6+1 buffers for vertex data, and index data. */
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#define MTL_MAX_BUFFER_BINDINGS 31
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#define MTL_MAX_VERTEX_INPUT_ATTRIBUTES 31
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#define MTL_MAX_UNIFORMS_PER_BLOCK 64
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/* Context-specific limits -- populated in 'MTLBackend::platform_init' */
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struct MTLCapabilities {
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/* Variable Limits & feature sets. */
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int max_color_render_targets = 4; /* Minimum = 4 */
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int buffer_alignment_for_textures = 256; /* Upper bound = 256 bytes */
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int minimum_buffer_offset_alignment = 256; /* Upper bound = 256 bytes */
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/* Capabilities */
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bool supports_vertex_amplification = false;
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bool supports_texture_swizzle = true;
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bool supports_cubemaps = true;
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bool supports_layered_rendering = true;
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bool supports_memory_barriers = false;
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bool supports_sampler_border_color = false;
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bool supports_argument_buffers_tier2 = false;
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bool supports_texture_gather = false;
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/* GPU Family */
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bool supports_family_mac1 = false;
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bool supports_family_mac2 = false;
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bool supports_family_mac_catalyst1 = false;
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bool supports_family_mac_catalyst2 = false;
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};
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} // namespace gpu
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} // namespace blender
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