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https://github.com/encounter/dawn-cmake.git
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82b6573d54
We still keep a dummy BufferBuilder object around so that it can be used for the builder error callback tests of the wire. Change-Id: If0c502bb8b62ee3ed61815e34e9b6ee6c03a65ef
66 lines
2.5 KiB
C++
66 lines
2.5 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 "dawn_native/opengl/BufferGL.h"
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#include "dawn_native/opengl/DeviceGL.h"
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namespace dawn_native { namespace opengl {
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// Buffer
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Buffer::Buffer(Device* device, const BufferDescriptor* descriptor)
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: BufferBase(device, descriptor) {
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glGenBuffers(1, &mBuffer);
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glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
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glBufferData(GL_ARRAY_BUFFER, GetSize(), nullptr, GL_STATIC_DRAW);
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}
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GLuint Buffer::GetHandle() const {
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return mBuffer;
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}
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void Buffer::SetSubDataImpl(uint32_t start, uint32_t count, const uint8_t* data) {
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glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
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glBufferSubData(GL_ARRAY_BUFFER, start, count, data);
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}
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void Buffer::MapReadAsyncImpl(uint32_t serial, uint32_t start, uint32_t count) {
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// TODO(cwallez@chromium.org): this does GPU->CPU synchronization, we could require a high
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// version of OpenGL that would let us map the buffer unsynchronized.
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glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
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void* data = glMapBufferRange(GL_ARRAY_BUFFER, start, count, GL_MAP_READ_BIT);
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CallMapReadCallback(serial, DAWN_BUFFER_MAP_ASYNC_STATUS_SUCCESS, data);
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}
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void Buffer::MapWriteAsyncImpl(uint32_t serial, uint32_t start, uint32_t count) {
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// TODO(cwallez@chromium.org): this does GPU->CPU synchronization, we could require a high
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// version of OpenGL that would let us map the buffer unsynchronized.
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glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
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void* data = glMapBufferRange(GL_ARRAY_BUFFER, start, count, GL_MAP_WRITE_BIT);
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CallMapWriteCallback(serial, DAWN_BUFFER_MAP_ASYNC_STATUS_SUCCESS, data);
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}
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void Buffer::UnmapImpl() {
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glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
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glUnmapBuffer(GL_ARRAY_BUFFER);
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}
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// BufferView
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BufferView::BufferView(BufferViewBuilder* builder) : BufferViewBase(builder) {
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}
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}} // namespace dawn_native::opengl
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