blob: 26617b1a5153e5dbcb08618783cec388330cf153 [file] [log] [blame]
// Copyright 2017 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "dawn_native/SwapChain.h"
#include "common/Constants.h"
#include "dawn_native/Adapter.h"
#include "dawn_native/Device.h"
#include "dawn_native/ObjectType_autogen.h"
#include "dawn_native/Surface.h"
#include "dawn_native/Texture.h"
#include "dawn_native/ValidationUtils_autogen.h"
namespace dawn_native {
namespace {
class ErrorSwapChain final : public SwapChainBase {
public:
ErrorSwapChain(DeviceBase* device) : SwapChainBase(device, ObjectBase::kError) {
}
private:
void APIConfigure(wgpu::TextureFormat format,
wgpu::TextureUsage allowedUsage,
uint32_t width,
uint32_t height) override {
GetDevice()->ConsumedError(
DAWN_FORMAT_VALIDATION_ERROR("%s is an error swapchain.", this));
}
TextureViewBase* APIGetCurrentTextureView() override {
GetDevice()->ConsumedError(
DAWN_FORMAT_VALIDATION_ERROR("%s is an error swapchain.", this));
return TextureViewBase::MakeError(GetDevice());
}
void APIPresent() override {
GetDevice()->ConsumedError(
DAWN_FORMAT_VALIDATION_ERROR("%s is an error swapchain.", this));
}
};
} // anonymous namespace
MaybeError ValidateSwapChainDescriptor(const DeviceBase* device,
const Surface* surface,
const SwapChainDescriptor* descriptor) {
if (descriptor->implementation != 0) {
DAWN_INVALID_IF(surface != nullptr,
"Exactly one of surface or implementation must be set");
DawnSwapChainImplementation* impl =
reinterpret_cast<DawnSwapChainImplementation*>(descriptor->implementation);
DAWN_INVALID_IF(!impl->Init || !impl->Destroy || !impl->Configure ||
!impl->GetNextTexture || !impl->Present,
"Implementation is incomplete");
} else {
DAWN_INVALID_IF(surface == nullptr,
"At least one of surface or implementation must be set");
DAWN_TRY(ValidatePresentMode(descriptor->presentMode));
// TODO(crbug.com/dawn/160): Lift this restriction once
// wgpu::Instance::GetPreferredSurfaceFormat is implemented.
DAWN_INVALID_IF(descriptor->format != wgpu::TextureFormat::BGRA8Unorm,
"Format (%s) is not %s, which is (currently) the only accepted format.",
descriptor->format, wgpu::TextureFormat::BGRA8Unorm);
DAWN_INVALID_IF(descriptor->usage != wgpu::TextureUsage::RenderAttachment,
"Usage (%s) is not %s, which is (currently) the only accepted usage.",
descriptor->usage, wgpu::TextureUsage::RenderAttachment);
DAWN_INVALID_IF(descriptor->width == 0 || descriptor->height == 0,
"Swap Chain size (width: %u, height: %u) is empty.", descriptor->width,
descriptor->height);
DAWN_INVALID_IF(
descriptor->width > device->GetLimits().v1.maxTextureDimension2D ||
descriptor->height > device->GetLimits().v1.maxTextureDimension2D,
"Swap Chain size (width: %u, height: %u) is greater than the maximum 2D texture "
"size (width: %u, height: %u).",
descriptor->width, descriptor->height, device->GetLimits().v1.maxTextureDimension2D,
device->GetLimits().v1.maxTextureDimension2D);
}
return {};
}
TextureDescriptor GetSwapChainBaseTextureDescriptor(NewSwapChainBase* swapChain) {
TextureDescriptor desc;
desc.usage = swapChain->GetUsage();
desc.dimension = wgpu::TextureDimension::e2D;
desc.size = {swapChain->GetWidth(), swapChain->GetHeight(), 1};
desc.format = swapChain->GetFormat();
desc.mipLevelCount = 1;
desc.sampleCount = 1;
return desc;
}
// SwapChainBase
SwapChainBase::SwapChainBase(DeviceBase* device) : ApiObjectBase(device, kLabelNotImplemented) {
TrackInDevice();
}
SwapChainBase::SwapChainBase(DeviceBase* device, ObjectBase::ErrorTag tag)
: ApiObjectBase(device, tag) {
}
SwapChainBase::~SwapChainBase() {
}
// static
SwapChainBase* SwapChainBase::MakeError(DeviceBase* device) {
return new ErrorSwapChain(device);
}
ObjectType SwapChainBase::GetType() const {
return ObjectType::SwapChain;
}
// OldSwapChainBase
OldSwapChainBase::OldSwapChainBase(DeviceBase* device, const SwapChainDescriptor* descriptor)
: SwapChainBase(device),
mImplementation(
*reinterpret_cast<DawnSwapChainImplementation*>(descriptor->implementation)) {
}
OldSwapChainBase::~OldSwapChainBase() {
if (!IsError()) {
const auto& im = GetImplementation();
im.Destroy(im.userData);
}
}
void OldSwapChainBase::APIConfigure(wgpu::TextureFormat format,
wgpu::TextureUsage allowedUsage,
uint32_t width,
uint32_t height) {
if (GetDevice()->ConsumedError(ValidateConfigure(format, allowedUsage, width, height))) {
return;
}
ASSERT(!IsError());
allowedUsage |= wgpu::TextureUsage::Present;
mFormat = format;
mAllowedUsage = allowedUsage;
mWidth = width;
mHeight = height;
mImplementation.Configure(mImplementation.userData, static_cast<WGPUTextureFormat>(format),
static_cast<WGPUTextureUsage>(allowedUsage), width, height);
}
TextureViewBase* OldSwapChainBase::APIGetCurrentTextureView() {
if (GetDevice()->ConsumedError(ValidateGetCurrentTextureView())) {
return TextureViewBase::MakeError(GetDevice());
}
ASSERT(!IsError());
// Return the same current texture view until Present is called.
if (mCurrentTextureView != nullptr) {
// Calling GetCurrentTextureView always returns a new reference so add it even when
// reuse the existing texture view.
mCurrentTextureView->Reference();
return mCurrentTextureView.Get();
}
// Create the backing texture and the view.
TextureDescriptor descriptor;
descriptor.dimension = wgpu::TextureDimension::e2D;
descriptor.size.width = mWidth;
descriptor.size.height = mHeight;
descriptor.size.depthOrArrayLayers = 1;
descriptor.sampleCount = 1;
descriptor.format = mFormat;
descriptor.mipLevelCount = 1;
descriptor.usage = mAllowedUsage;
// Get the texture but remove the external refcount because it is never passed outside
// of dawn_native
mCurrentTexture = AcquireRef(GetNextTextureImpl(&descriptor));
mCurrentTextureView = mCurrentTexture->APICreateView();
return mCurrentTextureView.Get();
}
void OldSwapChainBase::APIPresent() {
if (GetDevice()->ConsumedError(ValidatePresent())) {
return;
}
ASSERT(!IsError());
if (GetDevice()->ConsumedError(OnBeforePresent(mCurrentTextureView.Get()))) {
return;
}
mImplementation.Present(mImplementation.userData);
mCurrentTexture = nullptr;
mCurrentTextureView = nullptr;
}
const DawnSwapChainImplementation& OldSwapChainBase::GetImplementation() {
ASSERT(!IsError());
return mImplementation;
}
MaybeError OldSwapChainBase::ValidateConfigure(wgpu::TextureFormat format,
wgpu::TextureUsage allowedUsage,
uint32_t width,
uint32_t height) const {
DAWN_TRY(GetDevice()->ValidateIsAlive());
DAWN_TRY(GetDevice()->ValidateObject(this));
DAWN_TRY(ValidateTextureUsage(allowedUsage));
DAWN_TRY(ValidateTextureFormat(format));
DAWN_INVALID_IF(width == 0 || height == 0,
"Configuration size (width: %u, height: %u) for %s is empty.", width,
height, this);
return {};
}
MaybeError OldSwapChainBase::ValidateGetCurrentTextureView() const {
DAWN_TRY(GetDevice()->ValidateIsAlive());
DAWN_TRY(GetDevice()->ValidateObject(this));
// If width is 0, it implies swap chain has never been configured
DAWN_INVALID_IF(mWidth == 0, "%s was not configured prior to calling GetNextTexture.",
this);
return {};
}
MaybeError OldSwapChainBase::ValidatePresent() const {
DAWN_TRY(GetDevice()->ValidateIsAlive());
DAWN_TRY(GetDevice()->ValidateObject(this));
DAWN_INVALID_IF(
mCurrentTextureView == nullptr,
"GetCurrentTextureView was not called on %s this frame prior to calling Present.",
this);
return {};
}
// Implementation of NewSwapChainBase
NewSwapChainBase::NewSwapChainBase(DeviceBase* device,
Surface* surface,
const SwapChainDescriptor* descriptor)
: SwapChainBase(device),
mAttached(false),
mWidth(descriptor->width),
mHeight(descriptor->height),
mFormat(descriptor->format),
mUsage(descriptor->usage),
mPresentMode(descriptor->presentMode),
mSurface(surface) {
}
NewSwapChainBase::~NewSwapChainBase() {
if (mCurrentTextureView != nullptr) {
ASSERT(mCurrentTextureView->GetTexture()->GetTextureState() ==
TextureBase::TextureState::Destroyed);
}
ASSERT(!mAttached);
}
void NewSwapChainBase::DetachFromSurface() {
if (mAttached) {
DetachFromSurfaceImpl();
mSurface = nullptr;
mAttached = false;
}
}
void NewSwapChainBase::SetIsAttached() {
mAttached = true;
}
void NewSwapChainBase::APIConfigure(wgpu::TextureFormat format,
wgpu::TextureUsage allowedUsage,
uint32_t width,
uint32_t height) {
GetDevice()->ConsumedError(
DAWN_FORMAT_VALIDATION_ERROR("Configure is invalid for surface-based swapchains."));
}
TextureViewBase* NewSwapChainBase::APIGetCurrentTextureView() {
if (GetDevice()->ConsumedError(ValidateGetCurrentTextureView())) {
return TextureViewBase::MakeError(GetDevice());
}
if (mCurrentTextureView != nullptr) {
// Calling GetCurrentTextureView always returns a new reference so add it even when
// reusing the existing texture view.
mCurrentTextureView->Reference();
return mCurrentTextureView.Get();
}
TextureViewBase* view = nullptr;
if (GetDevice()->ConsumedError(GetCurrentTextureViewImpl(), &view)) {
return TextureViewBase::MakeError(GetDevice());
}
// Check that the return texture view matches exactly what was given for this descriptor.
ASSERT(view->GetTexture()->GetFormat().format == mFormat);
ASSERT(IsSubset(mUsage, view->GetTexture()->GetUsage()));
ASSERT(view->GetLevelCount() == 1);
ASSERT(view->GetLayerCount() == 1);
ASSERT(view->GetDimension() == wgpu::TextureViewDimension::e2D);
ASSERT(view->GetTexture()->GetMipLevelVirtualSize(view->GetBaseMipLevel()).width == mWidth);
ASSERT(view->GetTexture()->GetMipLevelVirtualSize(view->GetBaseMipLevel()).height ==
mHeight);
mCurrentTextureView = view;
return view;
}
void NewSwapChainBase::APIPresent() {
if (GetDevice()->ConsumedError(ValidatePresent())) {
return;
}
if (GetDevice()->ConsumedError(PresentImpl())) {
return;
}
ASSERT(mCurrentTextureView->GetTexture()->GetTextureState() ==
TextureBase::TextureState::Destroyed);
mCurrentTextureView = nullptr;
}
uint32_t NewSwapChainBase::GetWidth() const {
return mWidth;
}
uint32_t NewSwapChainBase::GetHeight() const {
return mHeight;
}
wgpu::TextureFormat NewSwapChainBase::GetFormat() const {
return mFormat;
}
wgpu::TextureUsage NewSwapChainBase::GetUsage() const {
return mUsage;
}
wgpu::PresentMode NewSwapChainBase::GetPresentMode() const {
return mPresentMode;
}
Surface* NewSwapChainBase::GetSurface() const {
return mSurface;
}
bool NewSwapChainBase::IsAttached() const {
return mAttached;
}
wgpu::BackendType NewSwapChainBase::GetBackendType() const {
return GetDevice()->GetAdapter()->GetBackendType();
}
MaybeError NewSwapChainBase::ValidatePresent() const {
DAWN_TRY(GetDevice()->ValidateIsAlive());
DAWN_TRY(GetDevice()->ValidateObject(this));
DAWN_INVALID_IF(!mAttached, "Cannot call Present called on detached %s.", this);
DAWN_INVALID_IF(
mCurrentTextureView == nullptr,
"GetCurrentTextureView was not called on %s this frame prior to calling Present.",
this);
return {};
}
MaybeError NewSwapChainBase::ValidateGetCurrentTextureView() const {
DAWN_TRY(GetDevice()->ValidateIsAlive());
DAWN_TRY(GetDevice()->ValidateObject(this));
DAWN_INVALID_IF(!mAttached, "Cannot call GetCurrentTextureView on detached %s.", this);
return {};
}
} // namespace dawn_native