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/*
* 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 "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;
VkDeviceMemory 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;
}
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;
}
VkMemoryPropertyFlags requiredMemProps = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT |
VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
if (!GrVkMemory::AllocAndBindBufferMemory(gpu,
buffer,
requiredMemProps,
&alloc)) {
// Try again without requiring host cached memory
requiredMemProps = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
if (!GrVkMemory::AllocAndBindBufferMemory(gpu,
buffer,
requiredMemProps,
&alloc)) {
VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
return nullptr;
}
}
const GrVkBuffer::Resource* resource = new GrVkBuffer::Resource(buffer, alloc);
if (!resource) {
VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
VK_CALL(gpu, FreeMemory(gpu->device(), alloc, nullptr));
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
NULL, // 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);
VK_CALL(gpu, DestroyBuffer(gpu->device(), fBuffer, nullptr));
VK_CALL(gpu, FreeMemory(gpu->device(), fAlloc, nullptr));
}
void GrVkBuffer::vkRelease(const GrVkGpu* gpu) {
VALIDATE();
fResource->unref(gpu);
fResource = nullptr;
fMapPtr = nullptr;
VALIDATE();
}
void GrVkBuffer::vkAbandon() {
fResource->unrefAndAbandon();
fMapPtr = nullptr;
VALIDATE();
}
void* GrVkBuffer::vkMap(const GrVkGpu* gpu) {
VALIDATE();
SkASSERT(!this->vkIsMapped());
if (!fResource->unique()) {
// in use by the command buffer, so we need to create a new one
fResource->unref(gpu);
fResource = Create(gpu, fDesc);
}
VkResult err = VK_CALL(gpu, MapMemory(gpu->device(), alloc(), 0, VK_WHOLE_SIZE, 0, &fMapPtr));
if (err) {
fMapPtr = nullptr;
}
VALIDATE();
return fMapPtr;
}
void GrVkBuffer::vkUnmap(const GrVkGpu* gpu) {
VALIDATE();
SkASSERT(this->vkIsMapped());
VK_CALL(gpu, UnmapMemory(gpu->device(), alloc()));
fMapPtr = nullptr;
}
bool GrVkBuffer::vkIsMapped() const {
VALIDATE();
return SkToBool(fMapPtr);
}
bool GrVkBuffer::vkUpdateData(const GrVkGpu* gpu, const void* src, size_t srcSizeInBytes,
bool* createdNewBuffer) {
SkASSERT(!this->vkIsMapped());
VALIDATE();
if (srcSizeInBytes > fDesc.fSizeInBytes) {
return false;
}
if (!fResource->unique()) {
// in use by the command buffer, so we need to create a new one
fResource->unref(gpu);
fResource = Create(gpu, fDesc);
if (createdNewBuffer) {
*createdNewBuffer = true;
}
}
void* mapPtr;
VkResult err = VK_CALL(gpu, MapMemory(gpu->device(), alloc(), 0, srcSizeInBytes, 0, &mapPtr));
if (VK_SUCCESS != err) {
return false;
}
memcpy(mapPtr, src, srcSizeInBytes);
VK_CALL(gpu, UnmapMemory(gpu->device(), alloc()));
return true;
}
void GrVkBuffer::validate() const {
SkASSERT(!fResource || kVertex_Type == fDesc.fType || kIndex_Type == fDesc.fType
|| kCopyRead_Type == fDesc.fType || kCopyWrite_Type == fDesc.fType
|| kUniform_Type == fDesc.fType);
}
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