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ca41b00691
Change-Id: Ia049d5a03d0e251531f71def525492403588fd74 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/53460 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "utils/TerribleCommandBuffer.h"
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#include "common/Assert.h"
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namespace utils {
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TerribleCommandBuffer::TerribleCommandBuffer() {
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}
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TerribleCommandBuffer::TerribleCommandBuffer(dawn_wire::CommandHandler* handler)
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: mHandler(handler) {
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}
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void TerribleCommandBuffer::SetHandler(dawn_wire::CommandHandler* handler) {
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mHandler = handler;
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}
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size_t TerribleCommandBuffer::GetMaximumAllocationSize() const {
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return sizeof(mBuffer);
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}
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void* TerribleCommandBuffer::GetCmdSpace(size_t size) {
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// Note: This returns non-null even if size is zero.
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if (size > sizeof(mBuffer)) {
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return nullptr;
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}
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char* result = &mBuffer[mOffset];
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if (sizeof(mBuffer) - size < mOffset) {
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if (!Flush()) {
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return nullptr;
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}
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return GetCmdSpace(size);
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}
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mOffset += size;
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return result;
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}
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bool TerribleCommandBuffer::Flush() {
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bool success = mHandler->HandleCommands(mBuffer, mOffset) != nullptr;
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mOffset = 0;
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return success;
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}
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} // namespace utils
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