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| author | Michael Kowalski <makowalski@nvidia.com> | 2022-09-23 23:56:14 +0300 |
|---|---|---|
| committer | Michael Kowalski <makowalski@nvidia.com> | 2022-09-23 23:56:14 +0300 |
| commit | b2ad97ba97f3e55d1dd463e29ca0b2ec6fe761e1 (patch) | |
| tree | f94394835c6b731e4e379f4ef48fb78b4af4b9ca /source/blender/gpu/opengl/gl_storage_buffer.cc | |
| parent | b31807c75f0c18c43ac6979e6da57dc9d420167a (diff) | |
| parent | 7e980f2b8cb96aa6d04dc72899d08473367eeeb9 (diff) | |
Merge branch 'master' into tmp-usd-alab-v2-T100452tmp-usd-alab-v2-T100452
Diffstat (limited to 'source/blender/gpu/opengl/gl_storage_buffer.cc')
| -rw-r--r-- | source/blender/gpu/opengl/gl_storage_buffer.cc | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_storage_buffer.cc b/source/blender/gpu/opengl/gl_storage_buffer.cc index 83a56edcf04..5d876308b3c 100644 --- a/source/blender/gpu/opengl/gl_storage_buffer.cc +++ b/source/blender/gpu/opengl/gl_storage_buffer.cc @@ -166,6 +166,23 @@ void GLStorageBuf::copy_sub(VertBuf *src_, uint dst_offset, uint src_offset, uin } } +void GLStorageBuf::read(void *data) +{ + if (ssbo_id_ == 0) { + this->init(); + } + + if (GLContext::direct_state_access_support) { + glGetNamedBufferSubData(ssbo_id_, 0, size_in_bytes_, data); + } + else { + /* This binds the buffer to GL_ARRAY_BUFFER and upload the data if any. */ + glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo_id_); + glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, size_in_bytes_, data); + glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0); + } +} + /** \} */ } // namespace blender::gpu |