Test GPUBuffer in GPUBindingResource

src/webgpu/api/operation/compute/basic.spec.ts

@@ -160,3 +160,76 @@ g.test('large_dispatch')
 
     dst.destroy();
   });
+
+g.test('buffer_binding_resource')
+  .desc(
+    `Validate the correctness of the buffer binding resource by filling the buffer with
+    testable data, clearing buffer in shader, and verifying the content of the whole buffer:
+  - covers the whole buffer
+  - covers the beginning of the buffer
+  - covers the end of the buffer
+  - covers neither the beginning nor the end of the buffer`
+  )
+  .paramsSubcasesOnly(u =>
+    u //
+      .combine('bindBufferResource', [false, true] as const)
+      .combine('offset', [0, 256, undefined])
+      .combine('size', [4, 8, undefined])
+      .expand('bufferSize', p => [
+        (p.offset ?? 0) + (p.size ?? 16),
+        (p.offset ?? 0) + (p.size ?? 16) + 8,
+      ])
+  )
+  .fn(t => {
+    const { offset, size, bufferSize, bindBufferResource } = t.params;
+
+    const bufferData = new Uint8Array(bufferSize);
+    for (let i = 0; i < bufferSize; ++i) {
+      bufferData[i] = i + 1;
+    }
+
+    const buffer = t.makeBufferWithContents(
+      bufferData,
+      GPUBufferUsage.COPY_DST | GPUBufferUsage.COPY_SRC | GPUBufferUsage.STORAGE
+    );
+
+    const pipeline = t.device.createComputePipeline({
+      layout: 'auto',
+      compute: {
+        module: t.device.createShaderModule({
+          code: `
+            @group(0) @binding(0) var<storage, read_write> buffer : array<u32>;
+
+            @compute @workgroup_size(1) fn main() {
+              for (var i = 0u; i < arrayLength(&buffer); i = i + 1u) {
+                buffer[i] = 0;
+              }
+              return;
+            }`,
+        }),
+      },
+    });
+
+    const resource = bindBufferResource ? buffer : { buffer, offset, size };
+    const bg = t.device.createBindGroup({
+      entries: [{ binding: 0, resource }],
+      layout: pipeline.getBindGroupLayout(0),
+    });
+
+    const encoder = t.device.createCommandEncoder();
+    const pass = encoder.beginComputePass();
+    pass.setPipeline(pipeline);
+    pass.setBindGroup(0, bg);
+    pass.dispatchWorkgroups(1);
+    pass.end();
+    t.device.queue.submit([encoder.finish()]);
+
+    const expectOffset = bindBufferResource ? 0 : offset ?? 0;
+    const expectSize = bindBufferResource ? bufferSize : size ?? bufferSize - expectOffset;
+
+    for (let i = 0; i < expectSize; ++i) {
+      bufferData[expectOffset + i] = 0;
+    }
+
+    t.expectGPUBufferValuesEqual(buffer, bufferData);
+  });

src/webgpu/api/operation/resource_init/buffer.spec.ts

@@ -48,6 +48,32 @@ class F extends AllFeaturesMaxLimitsGPUTest {
     buffer: GPUBuffer,
     bufferOffset: number,
     boundBufferSize: number
+  ): void {
+    this.TestBufferZeroInitInBindGroupInternal(
+      computeShaderModule,
+      buffer,
+      false,
+      bufferOffset,
+      boundBufferSize
+    );
+    const bindBufferResource = bufferOffset === 0 && boundBufferSize === buffer.size;
+    if (bindBufferResource) {
+      this.TestBufferZeroInitInBindGroupInternal(
+        computeShaderModule,
+        buffer,
+        true,
+        bufferOffset,
+        boundBufferSize
+      );
+    }
+  }
+
+  TestBufferZeroInitInBindGroupInternal(
+    computeShaderModule: GPUShaderModule,
+    buffer: GPUBuffer,
+    bindBufferResource: boolean,
+    bufferOffset: number,
+    boundBufferSize: number
   ): void {
     const computePipeline = this.device.createComputePipeline({
       layout: 'auto',
@@ -61,16 +87,19 @@ class F extends AllFeaturesMaxLimitsGPUTest {
       size: [1, 1, 1],
       usage: GPUTextureUsage.COPY_SRC | GPUTextureUsage.STORAGE_BINDING,
     });
+    const resource = bindBufferResource
+      ? buffer
+      : {
+          buffer,
+          offset: bufferOffset,
+          size: boundBufferSize,
+        };
     const bindGroup = this.device.createBindGroup({
       layout: computePipeline.getBindGroupLayout(0),
       entries: [
         {
           binding: 0,
-          resource: {
-            buffer,
-            offset: bufferOffset,
-            size: boundBufferSize,
-          },
+          resource,
         },
         {
           binding: 1,

src/webgpu/api/validation/createBindGroup.spec.ts

@@ -446,6 +446,7 @@ g.test('buffer_offset_and_size_for_bind_groups_match')
   .paramsSubcasesOnly([
     { offset: 0, size: 512, _success: true }, // offset 0 is valid
     { offset: 256, size: 256, _success: true }, // offset 256 (aligned) is valid
+    { bindBufferResource: true, _success: true }, // full buffer is valid
 
     // Touching the end of the buffer
     { offset: 0, size: 1024, _success: true },
@@ -471,7 +472,7 @@ g.test('buffer_offset_and_size_for_bind_groups_match')
     { offset: 1024, size: 1, _success: false }, // offset+size is OOB
   ])
   .fn(t => {
-    const { offset, size, _success } = t.params;
+    const { bindBufferResource, offset, size, _success } = t.params;
 
     const bindGroupLayout = t.device.createBindGroupLayout({
       entries: [{ binding: 0, visibility: GPUShaderStage.COMPUTE, buffer: { type: 'storage' } }],
@@ -482,11 +483,12 @@ g.test('buffer_offset_and_size_for_bind_groups_match')
       usage: GPUBufferUsage.STORAGE,
     });
 
+    const resource = bindBufferResource ? buffer : { buffer, offset, size };
     const descriptor = {
       entries: [
         {
           binding: 0,
-          resource: { buffer, offset, size },
+          resource,
         },
       ],
       layout: bindGroupLayout,
@@ -561,9 +563,10 @@ g.test('buffer,resource_state')
       .combine('state', kResourceStates)
       .combine('entry', bufferBindingEntries(true))
       .combine('visibilityMask', [kAllShaderStages, GPUConst.ShaderStage.COMPUTE] as const)
+      .combine('bindBufferResource', [false, true] as const)
   )
   .fn(t => {
-    const { state, entry, visibilityMask } = t.params;
+    const { state, entry, visibilityMask, bindBufferResource } = t.params;
 
     assert(entry.buffer !== undefined);
     const info = bufferBindingTypeInfo(entry.buffer);
@@ -586,15 +589,14 @@ g.test('buffer,resource_state')
       size: 4,
     });
 
+    const resource = bindBufferResource ? buffer : { buffer };
     t.expectValidationError(() => {
       t.device.createBindGroup({
         layout: bgl,
         entries: [
           {
             binding: 0,
-            resource: {
-              buffer,
-            },
+            resource,
           },
         ],
       });