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source/blender/gpu/opengl/gl_vertex_buffer.cc
- This file was added.
| /* | |||||
| * This program is free software; you can redistribute it and/or | |||||
| * modify it under the terms of the GNU General Public License | |||||
| * as published by the Free Software Foundation; either version 2 | |||||
| * of the License, or (at your option) any later version. | |||||
| * | |||||
| * This program is distributed in the hope that it will be useful, | |||||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||||
| * GNU General Public License for more details. | |||||
| * | |||||
| * You should have received a copy of the GNU General Public License | |||||
| * along with this program; if not, write to the Free Software Foundation, | |||||
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |||||
| * | |||||
| * The Original Code is Copyright (C) 2016 by Mike Erwin. | |||||
| * All rights reserved. | |||||
| */ | |||||
| /** \file | |||||
| * \ingroup gpu | |||||
| */ | |||||
| #include "gl_context.hh" | |||||
| #include "gl_vertex_buffer.hh" | |||||
| namespace blender::gpu { | |||||
| void GLVertBuf::acquire_data(void) | |||||
| { | |||||
| /* Discard previous data if any. */ | |||||
| MEM_SAFE_FREE(data); | |||||
| data = (uchar *)MEM_mallocN(sizeof(uchar) * this->size_alloc_get(), __func__); | |||||
| } | |||||
| void GLVertBuf::resize_data(void) | |||||
| { | |||||
| data = (uchar *)MEM_reallocN(data, sizeof(uchar) * this->size_alloc_get()); | |||||
| } | |||||
| void GLVertBuf::release_data(void) | |||||
| { | |||||
| if (vbo_id_ != 0) { | |||||
| GLContext::buf_free(vbo_id_); | |||||
| vbo_id_ = 0; | |||||
| memory_usage -= vbo_size_; | |||||
| } | |||||
| MEM_SAFE_FREE(data); | |||||
| } | |||||
| void GLVertBuf::duplicate_data(VertBuf *dst_) | |||||
| { | |||||
| BLI_assert(GPU_context_active_get() != NULL); | |||||
| GLVertBuf *src = this; | |||||
| GLVertBuf *dst = static_cast<GLVertBuf *>(dst_); | |||||
| if (src->vbo_id_ != 0) { | |||||
| dst->vbo_size_ = src->size_used_get(); | |||||
| glGenBuffers(1, &dst->vbo_id_); | |||||
| glBindBuffer(GL_COPY_WRITE_BUFFER, dst->vbo_id_); | |||||
| glBufferData(GL_COPY_WRITE_BUFFER, dst->vbo_size_, NULL, to_gl(dst->usage_)); | |||||
| glBindBuffer(GL_COPY_READ_BUFFER, src->vbo_id_); | |||||
| glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, dst->vbo_size_); | |||||
| memory_usage += dst->vbo_size_; | |||||
| } | |||||
| if (data != nullptr) { | |||||
| dst->data = (uchar *)MEM_dupallocN(src->data); | |||||
| } | |||||
| } | |||||
| void GLVertBuf::upload_data(void) | |||||
| { | |||||
| this->bind(); | |||||
| } | |||||
| void GLVertBuf::bind(void) | |||||
| { | |||||
| BLI_assert(GPU_context_active_get() != NULL); | |||||
| if (vbo_id_ == 0) { | |||||
| glGenBuffers(1, &vbo_id_); | |||||
| } | |||||
| glBindBuffer(GL_ARRAY_BUFFER, vbo_id_); | |||||
| if (flag & GPU_VERTBUF_DATA_DIRTY) { | |||||
| vbo_size_ = this->size_used_get(); | |||||
| /* Orphan the vbo to avoid sync then upload data. */ | |||||
| glBufferData(GL_ARRAY_BUFFER, vbo_size_, NULL, to_gl(usage_)); | |||||
| glBufferSubData(GL_ARRAY_BUFFER, 0, vbo_size_, data); | |||||
| memory_usage += vbo_size_; | |||||
| if (usage_ == GPU_USAGE_STATIC) { | |||||
| MEM_SAFE_FREE(data); | |||||
| } | |||||
| flag &= ~GPU_VERTBUF_DATA_DIRTY; | |||||
| flag |= GPU_VERTBUF_DATA_UPLOADED; | |||||
| } | |||||
| } | |||||
| } // namespace blender::gpu | |||||
| No newline at end of file | |||||