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_vertex_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_vertex_buffer.h')
-rw-r--r-- | source/blender/gpu/GPU_vertex_buffer.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/source/blender/gpu/GPU_vertex_buffer.h b/source/blender/gpu/GPU_vertex_buffer.h index aae58de533b..2c54016daa7 100644 --- a/source/blender/gpu/GPU_vertex_buffer.h +++ b/source/blender/gpu/GPU_vertex_buffer.h @@ -59,6 +59,7 @@ typedef enum { GPU_USAGE_STREAM, GPU_USAGE_STATIC, /* do not keep data in memory */ GPU_USAGE_DYNAMIC, + GPU_USAGE_DEVICE_ONLY, /* Do not do host->device data transfers. */ } GPUUsageType; /** Opaque type hiding blender::gpu::VertBuf. */ @@ -70,6 +71,14 @@ GPUVertBuf *GPU_vertbuf_create_with_format_ex(const GPUVertFormat *, GPUUsageTyp #define GPU_vertbuf_create_with_format(format) \ GPU_vertbuf_create_with_format_ex(format, GPU_USAGE_STATIC) +/** + * (Download and) return a pointer containing the data of a vertex buffer. + * + * Note that the returned pointer is still owned by the driver. To get an + * local copy, use `GPU_vertbuf_unmap` after calling `GPU_vertbuf_read`. + */ +const void *GPU_vertbuf_read(GPUVertBuf *verts); +void *GPU_vertbuf_unmap(const GPUVertBuf *verts, const void *mapped_data); void GPU_vertbuf_clear(GPUVertBuf *verts); void GPU_vertbuf_discard(GPUVertBuf *); @@ -138,6 +147,7 @@ uint GPU_vertbuf_get_vertex_len(const GPUVertBuf *verts); GPUVertBufStatus GPU_vertbuf_get_status(const GPUVertBuf *verts); void GPU_vertbuf_use(GPUVertBuf *); +void GPU_vertbuf_bind_as_ssbo(struct GPUVertBuf *verts, int binding); /* XXX do not use. */ void GPU_vertbuf_update_sub(GPUVertBuf *verts, uint start, uint len, void *data); |