diff options
author | Jeroen Bakker <jbakker> | 2021-05-26 17:49:17 +0300 |
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committer | Jeroen Bakker <jeroen@blender.org> | 2021-05-26 17:49:30 +0300 |
commit | 87055dc71b0d50cd25660969b55cda7d44af6a12 (patch) | |
tree | c30337eadc92f072f524d6d0670b6a1043e29074 /source/blender/gpu/opengl/gl_index_buffer.hh | |
parent | e459a25e6cbe9321ad25f87843e2fe5a8a2306f9 (diff) |
GPU: Compute Pipeline.
With the compute pipeline calculation can be offloaded to the GPU.
This patch only adds the framework for compute. So no changes for users at
this moment.
NOTE: As this is an OpenGL4.3 feature it must always have a fallback.
Use `GPU_compute_shader_support` to check if compute pipeline can be used.
Check `gpu_shader_compute*` test cases for usage.
This patch also adds support for shader storage buffer objects and device only
vertex/index buffers.
An alternative that had been discussed was adding this to the `GPUBatch`, this
was eventually not chosen as it would lead to more code when used as part of a
shading group. The idea is that we add an `eDRWCommandType` in the near
future.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D10913
Diffstat (limited to 'source/blender/gpu/opengl/gl_index_buffer.hh')
-rw-r--r-- | source/blender/gpu/opengl/gl_index_buffer.hh | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_index_buffer.hh b/source/blender/gpu/opengl/gl_index_buffer.hh index b84934bb77f..0dbdaa6d398 100644 --- a/source/blender/gpu/opengl/gl_index_buffer.hh +++ b/source/blender/gpu/opengl/gl_index_buffer.hh @@ -34,6 +34,7 @@ namespace blender::gpu { class GLIndexBuf : public IndexBuf { friend class GLBatch; friend class GLDrawList; + friend class GLShader; /* For compute shaders. */ private: GLuint ibo_id_ = 0; @@ -42,6 +43,9 @@ class GLIndexBuf : public IndexBuf { ~GLIndexBuf(); void bind(void); + void bind_as_ssbo(uint binding) override; + + const uint32_t *read() const override; void *offset_ptr(uint additional_vertex_offset) const { @@ -57,6 +61,9 @@ class GLIndexBuf : public IndexBuf { return (index_type_ == GPU_INDEX_U16) ? 0xFFFFu : 0xFFFFFFFFu; } + private: + bool is_active() const; + MEM_CXX_CLASS_ALLOC_FUNCS("GLIndexBuf") }; |