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[d3d11] Write to image memory directly in InitHostVisibleTexture

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Avoids performing a potentially expensive copy or clear operation
on the GPU.
This commit is contained in:
Philip Rebohle 2019-09-19 18:23:07 +02:00
parent ae4a5232aa
commit 136ad3e4c9
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GPG Key ID: C8CC613427A31C99
1 changed files with 52 additions and 5 deletions
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57
src/d3d11/d3d11_initializer.cpp
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@ -41,9 +41,7 @@ namespace dxvk {
void D3D11Initializer::InitTexture(
D3D11CommonTexture* pTexture,
const D3D11_SUBRESOURCE_DATA* pInitialData) {
VkMemoryPropertyFlags memFlags = pTexture->GetImage()->memFlags();
(memFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT)
(pTexture->GetMapMode() == D3D11_COMMON_TEXTURE_MAP_MODE_DIRECT)
? InitHostVisibleTexture(pTexture, pInitialData)
: InitDeviceLocalTexture(pTexture, pInitialData);
}
@ -196,8 +194,57 @@ namespace dxvk {
void D3D11Initializer::InitHostVisibleTexture(
D3D11CommonTexture* pTexture,
const D3D11_SUBRESOURCE_DATA* pInitialData) {
// TODO implement properly with memset/memcpy
InitDeviceLocalTexture(pTexture, pInitialData);
Rc<DxvkImage> image = pTexture->GetImage();
for (uint32_t layer = 0; layer < image->info().numLayers; layer++) {
for (uint32_t level = 0; level < image->info().mipLevels; level++) {
VkImageSubresource subresource;
subresource.aspectMask = image->formatInfo()->aspectMask;
subresource.mipLevel = level;
subresource.arrayLayer = layer;
VkExtent3D blockCount = util::computeBlockCount(
image->mipLevelExtent(level),
image->formatInfo()->blockSize);
VkSubresourceLayout layout = image->querySubresourceLayout(subresource);
auto initialData = pInitialData
? &pInitialData[D3D11CalcSubresource(level, layer, image->info().mipLevels)]
: nullptr;
for (uint32_t z = 0; z < blockCount.depth; z++) {
for (uint32_t y = 0; y < blockCount.height; y++) {
auto size = blockCount.width * image->formatInfo()->elementSize;
auto dst = image->mapPtr(layout.offset + y * layout.rowPitch + z * layout.depthPitch);
if (initialData) {
auto src = reinterpret_cast<const char*>(initialData->pSysMem)
+ y * initialData->SysMemPitch
+ z * initialData->SysMemSlicePitch;
std::memcpy(dst, src, size);
} else {
std::memset(dst, 0, size);
}
}
}
}
}
// Initialize the image on the GPU
std::lock_guard<std::mutex> lock(m_mutex);
VkImageSubresourceRange subresources;
subresources.aspectMask = image->formatInfo()->aspectMask;
subresources.baseMipLevel = 0;
subresources.levelCount = image->info().mipLevels;
subresources.baseArrayLayer = 0;
subresources.layerCount = image->info().numLayers;
m_context->initImage(image, subresources, VK_IMAGE_LAYOUT_PREINITIALIZED);
m_transferCommands += 1;
FlushImplicit();
}