3655eb7ff0
Add command line argument to switch gpu backend. Add `--gpu-backend` option to override the gpu backend selected by Blender. Values for this option that will be available in releases for now are: * opengl: Force blender to select OpenGL backend. During development and depending on compile options additional values can exist: * metal: Force Blender to select Metal backend. When this option isn't provided the internal logic for GPU backend selection will be used. Note that this is at the time of writing the same as always selecting the opengl backend. Reviewed By: fclem, brecht, MichaelPW Differential Revision: https://developer.blender.org/D16297
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2016 by Mike Erwin. All rights reserved. */
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/** \file
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* \ingroup gpu
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*
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* This interface allow GPU to manage VAOs for multiple context and threads.
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*/
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#pragma once
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#include "GPU_batch.h"
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#include "GPU_common.h"
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#include "GPU_platform.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* GPU back-ends abstract the differences between different APIs. #GPU_context_create
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* automatically initializes the back-end, and #GPU_context_discard frees it when there
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* are no more contexts. */
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bool GPU_backend_supported(void);
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void GPU_backend_type_selection_set(const eGPUBackendType backend);
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eGPUBackendType GPU_backend_type_selection_get(void);
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eGPUBackendType GPU_backend_get_type(void);
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/** Opaque type hiding blender::gpu::Context. */
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typedef struct GPUContext GPUContext;
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GPUContext *GPU_context_create(void *ghost_window, void *ghost_context);
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/**
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* To be called after #GPU_context_active_set(ctx_to_destroy).
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*/
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void GPU_context_discard(GPUContext *);
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/**
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* Ctx can be NULL.
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*/
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void GPU_context_active_set(GPUContext *);
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GPUContext *GPU_context_active_get(void);
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/* Begin and end frame are used to mark the singular boundary representing the lifetime of a whole
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* frame. This also acts as a divisor for ensuring workload submission and flushing, especially for
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* background rendering when there is no call to present.
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* This is required by explicit-API's where there is no implicit workload flushing. */
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void GPU_context_begin_frame(GPUContext *ctx);
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void GPU_context_end_frame(GPUContext *ctx);
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/* Legacy GPU (Intel HD4000 series) do not support sharing GPU objects between GPU
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* contexts. EEVEE/Workbench can create different contexts for image/preview rendering, baking or
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* compiling. When a legacy GPU is detected (`GPU_use_main_context_workaround()`) any worker
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* threads should use the draw manager opengl context and make sure that they are the only one
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* using it by locking the main context using these two functions. */
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void GPU_context_main_lock(void);
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void GPU_context_main_unlock(void);
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/* GPU Begin/end work blocks */
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void GPU_render_begin(void);
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void GPU_render_end(void);
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/* For operations which need to run exactly once per frame -- even if there are no render updates.
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*/
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void GPU_render_step(void);
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#ifdef __cplusplus
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}
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#endif
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