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https://github.com/blender/blender
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e496eb758a
This PR adds support for GPU subdivision for Vulkan on Apple. Main change is that the OSD backend selection is done inside `osd_patch_defines.glsl` to reduce shader variations. Pull Request: https://projects.blender.org/blender/blender/pulls/153937
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/* SPDX-FileCopyrightText: 2015 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* Author: Sergey Sharybin. */
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#include "opensubdiv_evaluator_capi.hh"
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#ifdef WITH_METAL_BACKEND
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# include <opensubdiv/osd/mtlPatchShaderSource.h>
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#endif
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#if defined(WITH_VULKAN_BACKEND) || defined(WITH_OPENGL_BACKEND)
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# include <opensubdiv/osd/glslPatchShaderSource.h>
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#endif
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#include "MEM_guardedalloc.h"
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#include "GPU_context.hh"
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#include "internal/evaluator/evaluator_cache_impl.h"
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OpenSubdiv_EvaluatorCache *openSubdiv_createEvaluatorCache(eOpenSubdivEvaluator evaluator_type)
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{
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OpenSubdiv_EvaluatorCache *evaluator_cache = MEM_new<OpenSubdiv_EvaluatorCache>(__func__);
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evaluator_cache->impl = openSubdiv_createEvaluatorCacheInternal(evaluator_type);
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return evaluator_cache;
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}
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void openSubdiv_deleteEvaluatorCache(OpenSubdiv_EvaluatorCache *evaluator_cache)
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{
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if (!evaluator_cache) {
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return;
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}
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openSubdiv_deleteEvaluatorCacheInternal(evaluator_cache->impl);
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MEM_delete(evaluator_cache);
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}
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const char *openSubdiv_getGLSLPatchBasisSource()
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{
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/* Using a global string to avoid dealing with memory allocation/ownership. */
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static std::string patch_basis_source;
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if (patch_basis_source.empty()) {
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patch_basis_source =
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"#define OsdPatchParam_host_shared_ OsdPatchParam\n"
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"#define OsdPatchArray_host_shared_ OsdPatchArray\n"
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"#define OsdPatchCoord_host_shared_ OsdPatchCoord\n";
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#ifdef WITH_METAL_BACKEND
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patch_basis_source += OpenSubdiv::Osd::MTLPatchShaderSource::GetPatchBasisShaderSource();
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#endif
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#if defined(WITH_OPENGL_BACKEND) || defined(WITH_VULKAN_BACKEND)
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patch_basis_source += OpenSubdiv::Osd::GLSLPatchShaderSource::GetPatchBasisShaderSource();
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#endif
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}
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return patch_basis_source.c_str();
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}
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