Bug 1865830 - Implement CommandEncoder.clearBuffer. r=webgpu-reviewer…

…s,webidl,emilio,ErichDonGubler

Differential Revision: https://phabricator.services.mozilla.com/D194233

UltraBlame original commit: 774b13e9f1e717fff8e4c72128434adba4e2d6b1

dom/webgpu/CommandEncoder.cpp

@@ -1035,6 +1035,108 @@ void
 CommandEncoder
 :
 :
+ClearBuffer
+(
+const
+Buffer
+&
+aBuffer
+const
+uint64_t
+aOffset
+const
+dom
+:
+:
+Optional
+<
+uint64_t
+>
+&
+aSize
+)
+{
+uint64_t
+sizeVal
+=
+0xdeaddead
+;
+uint64_t
+*
+size
+=
+nullptr
+;
+if
+(
+aSize
+.
+WasPassed
+(
+)
+)
+{
+sizeVal
+=
+aSize
+.
+Value
+(
+)
+;
+size
+=
+&
+sizeVal
+;
+}
+ipc
+:
+:
+ByteBuf
+bb
+;
+ffi
+:
+:
+wgpu_command_encoder_clear_buffer
+(
+aBuffer
+.
+mId
+aOffset
+size
+ToFFI
+(
+&
+bb
+)
+)
+;
+mBridge
+-
+>
+SendCommandEncoderAction
+(
+mId
+mParent
+-
+>
+mId
+std
+:
+:
+move
+(
+bb
+)
+)
+;
+}
+void
+CommandEncoder
+:
+:
 PushDebugGroup
 (
 const

dom/webgpu/CommandEncoder.h

@@ -382,6 +382,28 @@ aCopySize
 )
 ;
 void
+ClearBuffer
+(
+const
+Buffer
+&
+aBuffer
+const
+uint64_t
+aOffset
+const
+dom
+:
+:
+Optional
+<
+uint64_t
+>
+&
+aSize
+)
+;
+void
 PushDebugGroup
 (
 const

dom/webidl/WebGPU.webidl

@@ -3929,6 +3929,21 @@ GPUExtent3D
 copySize
 )
 ;
+undefined
+clearBuffer
+(
+GPUBuffer
+buffer
+optional
+GPUSize64
+offset
+=
+0
+optional
+GPUSize64
+size
+)
+;
 GPUCommandBuffer
 finish
 (

gfx/wgpu_bindings/src/client.rs

@@ -7282,6 +7282,74 @@ action
 no_mangle
 ]
 pub
+unsafe
+extern
+"
+C
+"
+fn
+wgpu_command_encoder_clear_buffer
+(
+dst
+:
+wgc
+:
+:
+id
+:
+:
+BufferId
+offset
+:
+u64
+size
+:
+Option
+<
+&
+u64
+>
+bb
+:
+&
+mut
+ByteBuf
+)
+{
+let
+action
+=
+CommandEncoderAction
+:
+:
+ClearBuffer
+{
+dst
+offset
+size
+:
+size
+.
+cloned
+(
+)
+}
+;
+*
+bb
+=
+make_byte_buf
+(
+&
+action
+)
+;
+}
+#
+[
+no_mangle
+]
+pub
 extern
 "
 C