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/GPU_index_buffer.h | |
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/GPU_index_buffer.h')
-rw-r--r-- | source/blender/gpu/GPU_index_buffer.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/source/blender/gpu/GPU_index_buffer.h b/source/blender/gpu/GPU_index_buffer.h index 76aab3c196b..bdacfe6fc0f 100644 --- a/source/blender/gpu/GPU_index_buffer.h +++ b/source/blender/gpu/GPU_index_buffer.h @@ -49,6 +49,7 @@ void GPU_indexbuf_init_ex(GPUIndexBufBuilder *, GPUPrimType, uint index_len, uin /* supports only GPU_PRIM_POINTS, GPU_PRIM_LINES and GPU_PRIM_TRIS. */ void GPU_indexbuf_init(GPUIndexBufBuilder *, GPUPrimType, uint prim_len, uint vertex_len); +GPUIndexBuf *GPU_indexbuf_build_on_device(uint index_len); void GPU_indexbuf_add_generic_vert(GPUIndexBufBuilder *, uint v); void GPU_indexbuf_add_primitive_restart(GPUIndexBufBuilder *); @@ -70,6 +71,8 @@ void GPU_indexbuf_set_tri_restart(GPUIndexBufBuilder *builder, uint elem); GPUIndexBuf *GPU_indexbuf_build(GPUIndexBufBuilder *); void GPU_indexbuf_build_in_place(GPUIndexBufBuilder *, GPUIndexBuf *); +void GPU_indexbuf_bind_as_ssbo(GPUIndexBuf *elem, int binding); + /* Create a sub-range of an existing index-buffer. */ GPUIndexBuf *GPU_indexbuf_create_subrange(GPUIndexBuf *elem_src, uint start, uint length); void GPU_indexbuf_create_subrange_in_place(GPUIndexBuf *elem, @@ -77,6 +80,15 @@ void GPU_indexbuf_create_subrange_in_place(GPUIndexBuf *elem, uint start, uint length); +/** + * (Download and) return a pointer containing the data of an index buffer. + * + * Note that the returned pointer is still owned by the driver. To get an + * local copy, use `GPU_indexbuf_unmap` after calling `GPU_indexbuf_read`. + */ +const uint32_t *GPU_indexbuf_read(GPUIndexBuf *elem); +uint32_t *GPU_indexbuf_unmap(const GPUIndexBuf *elem, const uint32_t *mapped_data); + void GPU_indexbuf_discard(GPUIndexBuf *elem); bool GPU_indexbuf_is_init(GPUIndexBuf *elem); |