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[d3d11] Create mapped image buffer only when needed

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Also adds some documentation to D3D11CommonTexture.
This commit is contained in:
Philip Rebohle 2018-03-14 14:49:45 +01:00
parent 0ba3337289
commit 7a6d61d943
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GPG Key ID: C8CC613427A31C99
1 changed files with 19 additions and 11 deletions
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30
src/d3d11/d3d11_texture.cpp
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@ -28,6 +28,10 @@ namespace dxvk {
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.layout = VK_IMAGE_LAYOUT_GENERAL;
if (FAILED(GetSampleCount(m_desc.SampleDesc.Count, &imageInfo.sampleCount)))
throw DxvkError(str::format("D3D11: Invalid sample count: ", m_desc.SampleDesc.Count));
// Adjust usage flags based on the corresponding D3D flags
if (m_desc.BindFlags & D3D11_BIND_SHADER_RESOURCE) {
imageInfo.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
imageInfo.stages |= pDevice->GetEnabledShaderStages();
@ -38,30 +42,30 @@ namespace dxvk {
imageInfo.usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
imageInfo.stages |= VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
imageInfo.access |= VK_ACCESS_COLOR_ATTACHMENT_READ_BIT
| VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
| VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
}
if (m_desc.BindFlags & D3D11_BIND_DEPTH_STENCIL) {
imageInfo.usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
imageInfo.stages |= VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT
| VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
| VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
imageInfo.access |= VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT
| VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
| VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
}
if (m_desc.BindFlags & D3D11_BIND_UNORDERED_ACCESS) {
imageInfo.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
imageInfo.stages |= pDevice->GetEnabledShaderStages();
imageInfo.access |= VK_ACCESS_SHADER_READ_BIT
| VK_ACCESS_SHADER_WRITE_BIT;
| VK_ACCESS_SHADER_WRITE_BIT;
}
if (m_desc.MiscFlags & D3D11_RESOURCE_MISC_TEXTURECUBE)
imageInfo.flags |= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
if (FAILED(GetSampleCount(m_desc.SampleDesc.Count, &imageInfo.sampleCount)))
throw DxvkError(str::format("D3D11: Invalid sample count: ", m_desc.SampleDesc.Count));
// If the image is mapped directly to host memory, we need
// to enable linear tiling, and DXVK needs to be aware that
// the image can be accessed by the host.
if (m_mapMode == D3D11_COMMON_TEXTURE_MAP_MODE_DIRECT) {
imageInfo.stages |= VK_PIPELINE_STAGE_HOST_BIT;
imageInfo.tiling = VK_IMAGE_TILING_LINEAR;
@ -73,15 +77,19 @@ namespace dxvk {
imageInfo.access |= VK_ACCESS_HOST_READ_BIT;
}
// We must keep LINEAR images in GENERAL layout, but we
// can choose a better layout for the image based on how
// it is going to be used by the game.
if (imageInfo.tiling == VK_IMAGE_TILING_OPTIMAL)
imageInfo.layout = OptimizeLayout(imageInfo.usage);
// If necessary, create the mapped linear buffer
if (m_mapMode == D3D11_COMMON_TEXTURE_MAP_MODE_BUFFER)
m_buffer = CreateMappedBuffer();
// Finally create the image
m_image = m_device->GetDXVKDevice()->createImage(
imageInfo, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
m_buffer = m_desc.CPUAccessFlags != 0
? CreateMappedBuffer()
: nullptr;
}