cc8ea6ac67
Full support for translation and compilation of shaders in Metal, using GPUShaderCreateInfo. Includes render pipeline state creation and management, enabling all standard GPU viewport rendering features in Metal. Authored by Apple: Michael Parkin-White, Marco Giordano Ref T96261 Reviewed By: fclem Maniphest Tasks: T96261 Differential Revision: https://developer.blender.org/D15563
88 lines
2.4 KiB
C++
88 lines
2.4 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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#include "MEM_guardedalloc.h"
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#include "BLI_utildefines.h"
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#include "GPU_state.h"
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#include "gpu_state_private.hh"
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#include "mtl_pso_descriptor_state.hh"
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namespace blender::gpu {
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/* Forward Declarations. */
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class MTLContext;
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/**
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* State manager keeping track of the draw state and applying it before drawing.
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* Metal Implementation.
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**/
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class MTLStateManager : public StateManager {
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private:
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/* Current state of the associated MTLContext.
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* Avoids resetting the whole state for every change. */
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GPUState current_;
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GPUStateMutable current_mutable_;
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MTLContext *context_;
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/* Global pipeline descriptors. */
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MTLRenderPipelineStateDescriptor pipeline_descriptor_;
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public:
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MTLStateManager(MTLContext *ctx);
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void apply_state() override;
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void force_state() override;
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void issue_barrier(eGPUBarrier barrier_bits) override;
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void texture_bind(Texture *tex, eGPUSamplerState sampler, int unit) override;
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void texture_unbind(Texture *tex) override;
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void texture_unbind_all() override;
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void image_bind(Texture *tex, int unit) override;
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void image_unbind(Texture *tex) override;
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void image_unbind_all() override;
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void texture_unpack_row_length_set(uint len) override;
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/* Global pipeline descriptors. */
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MTLRenderPipelineStateDescriptor &get_pipeline_descriptor()
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{
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return pipeline_descriptor_;
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}
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private:
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void set_write_mask(const eGPUWriteMask value);
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void set_depth_test(const eGPUDepthTest value);
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void set_stencil_test(const eGPUStencilTest test, const eGPUStencilOp operation);
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void set_stencil_mask(const eGPUStencilTest test, const GPUStateMutable state);
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void set_clip_distances(const int new_dist_len, const int old_dist_len);
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void set_logic_op(const bool enable);
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void set_facing(const bool invert);
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void set_backface_culling(const eGPUFaceCullTest test);
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void set_provoking_vert(const eGPUProvokingVertex vert);
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void set_shadow_bias(const bool enable);
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void set_blend(const eGPUBlend value);
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void set_state(const GPUState &state);
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void set_mutable_state(const GPUStateMutable &state);
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/* METAL State utility functions. */
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void mtl_state_init();
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void mtl_depth_range(float near, float far);
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void mtl_stencil_mask(uint mask);
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void mtl_stencil_set_func(eGPUStencilTest stencil_func, int ref, uint mask);
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MEM_CXX_CLASS_ALLOC_FUNCS("MTLStateManager")
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};
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} // namespace blender::gpu
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