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blender-archive/source/blender/gpu/GPU_context.h
Jason Fielder 9130a60d3d MTLCommandBufferState for coordinating GPU workload submission and render pass coordination.
MTLFrameBuffer has been implemented to support creation of RenderCommandEncoders, along with supporting functionality in the Metal Context.

Optimisation stubs for GPU_framebuffer_bind_ext has been added, which enables specific assignment of attachment load-store ops at the bind level, rather than on a framebuffer object as a whole.

Begin and end frame markers are used to encapsulate frame boundaries for explicit workload submission. This is required for explicit APIs where implicit flushing of work does not occur.

Ref T96261

Reviewed By: fclem

Maniphest Tasks: T96261

Differential Revision: https://developer.blender.org/D15027
2022-06-27 11:45:49 +02:00

67 lines
2.0 KiB
C++

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2016 by Mike Erwin. All rights reserved. */
/** \file
* \ingroup gpu
*
* This interface allow GPU to manage VAOs for multiple context and threads.
*/
#pragma once
#include "GPU_batch.h"
#include "GPU_common.h"
#include "GPU_platform.h"
#ifdef __cplusplus
extern "C" {
#endif
void GPU_backend_init(eGPUBackendType backend);
void GPU_backend_exit(void);
bool GPU_backend_supported(eGPUBackendType type);
eGPUBackendType GPU_backend_get_type(void);
/** Opaque type hiding blender::gpu::Context. */
typedef struct GPUContext GPUContext;
GPUContext *GPU_context_create(void *ghost_window);
/**
* To be called after #GPU_context_active_set(ctx_to_destroy).
*/
void GPU_context_discard(GPUContext *);
/**
* Ctx can be NULL.
*/
void GPU_context_active_set(GPUContext *);
GPUContext *GPU_context_active_get(void);
/* Begin and end frame are used to mark the singular boundary representing the lifetime of a whole
* frame. This also acts as a divisor for ensuring workload submission and flushing, especially for
* background rendering when there is no call to present.
* This is required by explicit-API's where there is no implicit workload flushing. */
void GPU_context_begin_frame(GPUContext *ctx);
void GPU_context_end_frame(GPUContext *ctx);
/* Legacy GPU (Intel HD4000 series) do not support sharing GPU objects between GPU
* contexts. EEVEE/Workbench can create different contexts for image/preview rendering, baking or
* compiling. When a legacy GPU is detected (`GPU_use_main_context_workaround()`) any worker
* threads should use the draw manager opengl context and make sure that they are the only one
* using it by locking the main context using these two functions. */
void GPU_context_main_lock(void);
void GPU_context_main_unlock(void);
/* GPU Begin/end work blocks */
void GPU_render_begin(void);
void GPU_render_end(void);
/* For operations which need to run exactly once per frame -- even if there are no render updates.
*/
void GPU_render_step(void);
#ifdef __cplusplus
}
#endif