Clément Foucault
cdd4354c81
This covers implementation of the GPUTexture abstraction for the Metal backend, with additional utility functionality as required. Some components have been temporarily disabled pending dependencies on upcoming Metal backend components, and these will be addressed as the backend is fleshed out. One core challenge addressed in the Metal backend is the requirement for read/update routines for textures. MTLBlitCommandEncoders offer a limited range of the full functionality provided by OpenGLs texture update and read functions such that a series of compute kernels have been implemented to provide advanced functionality such as data format conversion and partial/swizzled component updates. This diff is provided in full, but if further division is required for purposes of code review, this can be done. Authored by Apple: Michael Parkin-White Ref T96261 Reviewed By: fclem Maniphest Tasks: T96261 Differential Revision: https://developer.blender.org/D14543
48 lines
1.4 KiB
C++
48 lines
1.4 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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#define MTL_MAX_UNIFORM_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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typedef 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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/* 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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} MTLCapabilities;
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} // namespace gpu
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} // namespace blender
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