These types are meant to be used for computations that might but are not
expected to fail in backend/, such that the error case can be much
slower than the success case.
The NXT_TRY and NXT_TRY_RESULT macros are added to help write more
concise code that uses Error and ResultOrError.
The sampler builder will be removed as the first builder being converted
to a descriptor. Use CommandBufferBuilder instead as it is not expected
to change soon.
This as an API change to get closer to the direction in which WebGPU is
headed. The API change in next.json caused a ton of files to be changed
in the same commit to keep things compiling.
API: the Framebuffer and RenderPass objects are now merged in a single
RenderPassInfo that contains the attachments, loadOps and clear values
for a BeginRenderPass command. The concept of subpass is removed.
The RenderPass creation argument to RenderPipelines is replaced by
explicitly setting the format of attachments for RenderPipeline.
Validation: SetPipeline checks are changed to check that the attachments
info set on a RenderPipeline matches the attachments of the render pass.
Backends: Most changes are simplifications of the backends that no
longer require and indirection to query the current subpass out of the
render pass in BeginSubpass, and don't need to get the attachment info
from a RenderPass when creating RenderPipelines. In the Vulkan backend,
a VkRenderPass cache is added to reuse VkRenderPasses between
RenderPassInfos and RenderPipelines.
Tests and examples: they are updated with the simplified API. Tests
specific to the Framebuffer and RenderPass objects were removed and
validation tests for RenderPassInfo were added.
Tested by running CppHelloTriangle on all backends, end2end tests on all
platforms and all examples on the GL backend.
HashCombine will be used in more than just BindGroupLayout caching so we
extract it to a separate header. Add a better mixing constant for 64bit
systems.
Delete the TextureBuilder created in SwapChainBase::GetNextTexture().
Delete the InputStateBuilder and DepthStencilStateBuilder created in
RenderPipelineBuilder::GetResultImpl().
PipelineLayout was re-entering in NXT to create the default empty BGLs,
but forgot to remove the initial external refcount for them.
Fixing this showed an issue where it was impossible to externally
reference a RefCounted that had only internal references, fix this as
well and add a test.
When a BGL was first created in the cache, it started with an external
refcount of 1 and we then referenced again in
BindGroupLayoutBuilder::GetResultImpl, causing a leak.
Fix this by referencing in the cache lookup only if the BGL already
exists.
Don't assert on color formats which can be cleared with a
floating-point clear value.
So far, these are { unorm } x { r, rg, rgba, bgra }.
Fix linter error when no files to check.
The indexOffset of the draw was not being used. It must be
included in the indexBufferOffset.
Renamed indexBufferOffset -> indexBufferBaseOffset.
Add a DrawElements test which exercises zero and non-zero index offsets.
Backend support implemented in GL, Metal and D3D12.
Support for unorm values in the GL backend requires a
utility function to indicate if the format's components
are normalized.
Note that unorm_r8 is only supported on more recent MacOS SDKs (10.13),
so it's omitted for now.
Corentin Wallez
Stephen White
Stephen White
Corentin Wallez