diff options
Diffstat (limited to 'source/blender/gpu/opengl/gl_storage_buffer.cc')
| -rw-r--r-- | source/blender/gpu/opengl/gl_storage_buffer.cc | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/source/blender/gpu/opengl/gl_storage_buffer.cc b/source/blender/gpu/opengl/gl_storage_buffer.cc index b30674fe5fa..5d876308b3c 100644 --- a/source/blender/gpu/opengl/gl_storage_buffer.cc +++ b/source/blender/gpu/opengl/gl_storage_buffer.cc @@ -5,8 +5,6 @@ * \ingroup gpu */ -#include "BKE_global.h" - #include "BLI_string.h" #include "gpu_backend.hh" @@ -74,7 +72,7 @@ void GLStorageBuf::bind(int slot) if (slot >= GLContext::max_ssbo_binds) { fprintf( stderr, - "Error: Trying to bind \"%s\" ssbo to slot %d which is above the reported limit of %d.", + "Error: Trying to bind \"%s\" ssbo to slot %d which is above the reported limit of %d.\n", name_, slot, GLContext::max_ssbo_binds); @@ -168,6 +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 |