blob: a93a16e3cc69c44da9a5d459b92a197640e7656c [file] [log] [blame]
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrVkBuffer.h"
#include "GrVkGpu.h"
#include "GrVkMemory.h"
#include "GrVkTransferBuffer.h"
#include "GrVkUtil.h"
#define VK_CALL(GPU, X) GR_VK_CALL(GPU->vkInterface(), X)
#ifdef SK_DEBUG
#define VALIDATE() this->validate()
#else
#define VALIDATE() do {} while(false)
#endif
const GrVkBuffer::Resource* GrVkBuffer::Create(const GrVkGpu* gpu, const Desc& desc) {
VkBuffer buffer;
GrVkAlloc alloc;
// create the buffer object
VkBufferCreateInfo bufInfo;
memset(&bufInfo, 0, sizeof(VkBufferCreateInfo));
bufInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufInfo.flags = 0;
bufInfo.size = desc.fSizeInBytes;
switch (desc.fType) {
case kVertex_Type:
bufInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
break;
case kIndex_Type:
bufInfo.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
break;
case kUniform_Type:
bufInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
break;
case kCopyRead_Type:
bufInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
break;
case kCopyWrite_Type:
bufInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
break;
case kTexel_Type:
bufInfo.usage = VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT;
}
if (!desc.fDynamic) {
bufInfo.usage |= VK_BUFFER_USAGE_TRANSFER_DST_BIT;
}
bufInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
bufInfo.queueFamilyIndexCount = 0;
bufInfo.pQueueFamilyIndices = nullptr;
VkResult err;
err = VK_CALL(gpu, CreateBuffer(gpu->device(), &bufInfo, nullptr, &buffer));
if (err) {
return nullptr;
}
if (!GrVkMemory::AllocAndBindBufferMemory(gpu,
buffer,
desc.fType,
desc.fDynamic,
&alloc)) {
return nullptr;
}
const GrVkBuffer::Resource* resource = new GrVkBuffer::Resource(buffer, alloc, desc.fType);
if (!resource) {
VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
GrVkMemory::FreeBufferMemory(gpu, desc.fType, alloc);
return nullptr;
}
return resource;
}
void GrVkBuffer::addMemoryBarrier(const GrVkGpu* gpu,
VkAccessFlags srcAccessMask,
VkAccessFlags dstAccesMask,
VkPipelineStageFlags srcStageMask,
VkPipelineStageFlags dstStageMask,
bool byRegion) const {
VkBufferMemoryBarrier bufferMemoryBarrier = {
VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER, // sType
nullptr, // pNext
srcAccessMask, // srcAccessMask
dstAccesMask, // dstAccessMask
VK_QUEUE_FAMILY_IGNORED, // srcQueueFamilyIndex
VK_QUEUE_FAMILY_IGNORED, // dstQueueFamilyIndex
this->buffer(), // buffer
0, // offset
fDesc.fSizeInBytes, // size
};
// TODO: restrict to area of buffer we're interested in
gpu->addBufferMemoryBarrier(srcStageMask, dstStageMask, byRegion, &bufferMemoryBarrier);
}
void GrVkBuffer::Resource::freeGPUData(const GrVkGpu* gpu) const {
SkASSERT(fBuffer);
SkASSERT(fAlloc.fMemory);
VK_CALL(gpu, DestroyBuffer(gpu->device(), fBuffer, nullptr));
GrVkMemory::FreeBufferMemory(gpu, fType, fAlloc);
}
void GrVkBuffer::vkRelease(const GrVkGpu* gpu) {
VALIDATE();
fResource->recycle(const_cast<GrVkGpu*>(gpu));
fResource = nullptr;
if (!fDesc.fDynamic) {
delete[] (unsigned char*)fMapPtr;
}
fMapPtr = nullptr;
VALIDATE();
}
void GrVkBuffer::vkAbandon() {
fResource->unrefAndAbandon();
fResource = nullptr;
if (!fDesc.fDynamic) {
delete[] (unsigned char*)fMapPtr;
}
fMapPtr = nullptr;
VALIDATE();
}
VkAccessFlags buffer_type_to_access_flags(GrVkBuffer::Type type) {
switch (type) {
case GrVkBuffer::kIndex_Type:
return VK_ACCESS_INDEX_READ_BIT;
case GrVkBuffer::kVertex_Type:
return VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT;
default:
// This helper is only called for static buffers so we should only ever see index or
// vertex buffers types
SkASSERT(false);
return 0;
}
}
void GrVkBuffer::internalMap(GrVkGpu* gpu, size_t size, bool* createdNewBuffer) {
VALIDATE();
SkASSERT(!this->vkIsMapped());
if (!fResource->unique()) {
if (fDesc.fDynamic) {
// in use by the command buffer, so we need to create a new one
fResource->recycle(gpu);
fResource = this->createResource(gpu, fDesc);
if (createdNewBuffer) {
*createdNewBuffer = true;
}
} else {
SkASSERT(fMapPtr);
this->addMemoryBarrier(gpu,
buffer_type_to_access_flags(fDesc.fType),
VK_ACCESS_TRANSFER_WRITE_BIT,
VK_PIPELINE_STAGE_VERTEX_INPUT_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT,
false);
}
}
if (fDesc.fDynamic) {
const GrVkAlloc& alloc = this->alloc();
VkResult err = VK_CALL(gpu, MapMemory(gpu->device(), alloc.fMemory,
alloc.fOffset + fOffset,
size, 0, &fMapPtr));
if (err) {
fMapPtr = nullptr;
}
} else {
if (!fMapPtr) {
fMapPtr = new unsigned char[this->size()];
}
}
VALIDATE();
}
void GrVkBuffer::internalUnmap(GrVkGpu* gpu, size_t size) {
VALIDATE();
SkASSERT(this->vkIsMapped());
if (fDesc.fDynamic) {
GrVkMemory::FlushMappedAlloc(gpu, this->alloc());
VK_CALL(gpu, UnmapMemory(gpu->device(), this->alloc().fMemory));
fMapPtr = nullptr;
} else {
if (size <= 65536) {
gpu->updateBuffer(this, fMapPtr, this->offset(), size);
} else {
GrVkTransferBuffer* transferBuffer =
GrVkTransferBuffer::Create(gpu, size, GrVkBuffer::kCopyRead_Type);
if(!transferBuffer) {
return;
}
char* buffer = (char*) transferBuffer->map();
memcpy (buffer, fMapPtr, size);
transferBuffer->unmap();
gpu->copyBuffer(transferBuffer, this, 0, this->offset(), size);
transferBuffer->unref();
}
this->addMemoryBarrier(gpu,
VK_ACCESS_TRANSFER_WRITE_BIT,
buffer_type_to_access_flags(fDesc.fType),
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_VERTEX_INPUT_BIT,
false);
}
}
bool GrVkBuffer::vkIsMapped() const {
VALIDATE();
return SkToBool(fMapPtr);
}
bool GrVkBuffer::vkUpdateData(GrVkGpu* gpu, const void* src, size_t srcSizeInBytes,
bool* createdNewBuffer) {
if (srcSizeInBytes > fDesc.fSizeInBytes) {
return false;
}
this->internalMap(gpu, srcSizeInBytes, createdNewBuffer);
if (!fMapPtr) {
return false;
}
memcpy(fMapPtr, src, srcSizeInBytes);
this->internalUnmap(gpu, srcSizeInBytes);
return true;
}
void GrVkBuffer::validate() const {
SkASSERT(!fResource || kVertex_Type == fDesc.fType || kIndex_Type == fDesc.fType
|| kTexel_Type == fDesc.fType || kCopyRead_Type == fDesc.fType
|| kCopyWrite_Type == fDesc.fType || kUniform_Type == fDesc.fType);
}