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Memory manager: buffer uploads (D3D) - Part 1

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Manages a single persistently mapped GPU heap which is sub-allocated
inside of ring-buffer for uploads. To handle larger buffers without additional
unused heaps, ring buffers are created on-demand.

BUG=dawn:28
TEST=dawn_unittests

Change-Id: Ifc5a1b06baf8633f1e133245ac1ee76275431cc5
Reviewed-on: https://dawn-review.googlesource.com/c/3160
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This commit is contained in:
Bryan Bernhart
2019-01-29 00:10:07 +00:00
committed by Commit Bot service account
parent 79ff8bead9
commit 74e95fff4a
38 changed files with 950 additions and 124 deletions
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3
src/dawn_native/opengl/BufferGL.cpp
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@@ -31,9 +31,10 @@ namespace dawn_native { namespace opengl {
return mBuffer;
}
void Buffer::SetSubDataImpl(uint32_t start, uint32_t count, const uint8_t* data) {
MaybeError Buffer::SetSubDataImpl(uint32_t start, uint32_t count, const uint8_t* data) {
glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
glBufferSubData(GL_ARRAY_BUFFER, start, count, data);
return {};
}
void Buffer::MapReadAsyncImpl(uint32_t serial, uint32_t start, uint32_t count) {

2
src/dawn_native/opengl/BufferGL.h
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@@ -30,7 +30,7 @@ namespace dawn_native { namespace opengl {
GLuint GetHandle() const;
private:
void SetSubDataImpl(uint32_t start, uint32_t count, const uint8_t* data) override;
MaybeError SetSubDataImpl(uint32_t start, uint32_t count, const uint8_t* data) override;
void MapReadAsyncImpl(uint32_t serial, uint32_t start, uint32_t count) override;
void MapWriteAsyncImpl(uint32_t serial, uint32_t start, uint32_t count) override;
void UnmapImpl() override;

17
src/dawn_native/opengl/DeviceGL.cpp
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@@ -17,6 +17,7 @@
#include "dawn_native/BackendConnection.h"
#include "dawn_native/BindGroup.h"
#include "dawn_native/BindGroupLayout.h"
#include "dawn_native/DynamicUploader.h"
#include "dawn_native/RenderPassDescriptor.h"
#include "dawn_native/opengl/BufferGL.h"
#include "dawn_native/opengl/CommandBufferGL.h"
@@ -115,6 +116,10 @@ namespace dawn_native { namespace opengl {
return mLastSubmittedSerial;
}
Serial Device::GetPendingCommandSerial() const {
return mLastSubmittedSerial + 1;
}
void Device::TickImpl() {
CheckPassedFences();
}
@@ -144,4 +149,16 @@ namespace dawn_native { namespace opengl {
}
}
ResultOrError<std::unique_ptr<StagingBufferBase>> Device::CreateStagingBuffer(size_t size) {
return DAWN_UNIMPLEMENTED_ERROR("Device unable to create staging buffer.");
}
MaybeError Device::CopyFromStagingToBuffer(StagingBufferBase* source,
uint32_t sourceOffset,
BufferBase* destination,
uint32_t destinationOffset,
uint32_t size) {
return DAWN_UNIMPLEMENTED_ERROR("Device unable to copy from staging buffer.");
}
}} // namespace dawn_native::opengl

8
src/dawn_native/opengl/DeviceGL.h
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@@ -48,8 +48,16 @@ namespace dawn_native { namespace opengl {
Serial GetCompletedCommandSerial() const final override;
Serial GetLastSubmittedCommandSerial() const final override;
Serial GetPendingCommandSerial() const override;
void TickImpl() override;
ResultOrError<std::unique_ptr<StagingBufferBase>> CreateStagingBuffer(size_t size) override;
MaybeError CopyFromStagingToBuffer(StagingBufferBase* source,
uint32_t sourceOffset,
BufferBase* destination,
uint32_t destinationOffset,
uint32_t size) override;
private:
ResultOrError<BindGroupBase*> CreateBindGroupImpl(
const BindGroupDescriptor* descriptor) override;