зеркало из https://github.com/mozilla/gecko-dev.git
296 строки
8.1 KiB
C++
296 строки
8.1 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WEBGLQUEUEPARAMTRAITS_H_
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#define WEBGLQUEUEPARAMTRAITS_H_
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#include <type_traits>
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#include "ipc/EnumSerializer.h"
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#include "TexUnpackBlob.h"
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#include "WebGLTypes.h"
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namespace mozilla {
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namespace webgl {
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template <typename T>
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struct QueueParamTraits;
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// -
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#define USE_TIED_FIELDS(T) \
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template <> \
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struct QueueParamTraits<T> : QueueParamTraits_TiedFields<T> {};
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// -
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USE_TIED_FIELDS(layers::RemoteTextureId)
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USE_TIED_FIELDS(layers::RemoteTextureOwnerId)
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USE_TIED_FIELDS(WebGLContextOptions)
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USE_TIED_FIELDS(webgl::PixelUnpackStateWebgl)
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USE_TIED_FIELDS(webgl::SwapChainOptions)
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USE_TIED_FIELDS(webgl::ReadPixelsDesc)
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USE_TIED_FIELDS(webgl::VertAttribPointerDesc)
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USE_TIED_FIELDS(webgl::PackingInfo)
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USE_TIED_FIELDS(webgl::TypedQuad)
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USE_TIED_FIELDS(webgl::PixelPackingState)
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USE_TIED_FIELDS(FloatOrInt)
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} // namespace webgl
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template <>
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inline auto TiedFields<gfx::IntSize>(gfx::IntSize& a) {
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return std::tie(a.width, a.height);
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}
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namespace webgl {
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USE_TIED_FIELDS(gfx::IntSize)
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// -
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#undef USE_TIED_FIELDS
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// -
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template <class T>
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struct QueueParamTraits<avec2<T>> : QueueParamTraits_TiedFields<avec2<T>> {};
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template <class T>
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struct QueueParamTraits<avec3<T>> : QueueParamTraits_TiedFields<avec3<T>> {};
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// ---------------------------------------------------------------------
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// Enums!
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inline constexpr bool IsEnumCase(const dom::WebGLPowerPreference raw) {
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switch (raw) {
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case dom::WebGLPowerPreference::Default:
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case dom::WebGLPowerPreference::Low_power:
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case dom::WebGLPowerPreference::High_performance:
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return true;
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case dom::WebGLPowerPreference::EndGuard_:
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break;
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}
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return false;
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}
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inline constexpr bool IsEnumCase(const dom::PredefinedColorSpace raw) {
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switch (raw) {
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case dom::PredefinedColorSpace::Srgb:
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case dom::PredefinedColorSpace::Display_p3:
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return true;
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case dom::PredefinedColorSpace::EndGuard_:
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break;
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}
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return false;
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}
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inline constexpr bool IsEnumCase(const webgl::AttribBaseType raw) {
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switch (raw) {
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case webgl::AttribBaseType::Boolean:
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case webgl::AttribBaseType::Float:
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case webgl::AttribBaseType::Int:
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case webgl::AttribBaseType::Uint:
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return true;
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}
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return false;
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}
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static_assert(IsEnumCase(dom::WebGLPowerPreference(2)));
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static_assert(!IsEnumCase(dom::WebGLPowerPreference(3)));
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static_assert(!IsEnumCase(dom::WebGLPowerPreference(5)));
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#define USE_IS_ENUM_CASE(T) \
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template <> \
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struct QueueParamTraits<T> : QueueParamTraits_IsEnumCase<T> {};
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USE_IS_ENUM_CASE(dom::WebGLPowerPreference)
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USE_IS_ENUM_CASE(dom::PredefinedColorSpace)
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USE_IS_ENUM_CASE(webgl::AttribBaseType)
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USE_IS_ENUM_CASE(webgl::ProvokingVertex)
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#undef USE_IS_ENUM_CASE
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// ---------------------------------------------------------------------
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// Custom QueueParamTraits
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template <typename T>
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struct QueueParamTraits<RawBuffer<T>> {
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using ParamType = RawBuffer<T>;
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template <typename U>
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static bool Write(ProducerView<U>& view, const ParamType& in) {
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const auto& elemCount = in.size();
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auto status = view.WriteParam(elemCount);
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if (!status) return status;
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if (!elemCount) return status;
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status = view.WriteFromRange(in.Data());
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return status;
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}
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template <typename U>
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static bool Read(ConsumerView<U>& view, ParamType* const out) {
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size_t elemCount = 0;
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auto status = view.ReadParam(&elemCount);
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if (!status) return status;
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if (!elemCount) {
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*out = {};
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return true;
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}
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auto data = view.template ReadRange<T>(elemCount);
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if (!data) return false;
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*out = std::move(RawBuffer<T>{*data});
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return true;
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}
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};
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template <>
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struct QueueParamTraits<webgl::ContextLossReason>
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: public ContiguousEnumSerializerInclusive<
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webgl::ContextLossReason, webgl::ContextLossReason::None,
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webgl::ContextLossReason::Guilty> {};
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template <typename V, typename E>
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struct QueueParamTraits<Result<V, E>> {
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using T = Result<V, E>;
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template <typename U>
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static bool Write(ProducerView<U>& aProducerView, const T& aArg) {
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const auto ok = aArg.isOk();
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auto status = aProducerView.WriteParam(ok);
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if (!status) return status;
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if (ok) {
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status = aProducerView.WriteParam(aArg.unwrap());
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} else {
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status = aProducerView.WriteParam(aArg.unwrapErr());
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}
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return status;
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}
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template <typename U>
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static bool Read(ConsumerView<U>& aConsumerView, T* aArg) {
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bool ok;
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auto status = aConsumerView.ReadParam(&ok);
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if (!status) return status;
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if (ok) {
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V val;
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status = aConsumerView.ReadParam(&val);
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*aArg = val;
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} else {
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E val;
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status = aConsumerView.ReadParam(&val);
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*aArg = Err(val);
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}
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return status;
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}
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};
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template <>
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struct QueueParamTraits<std::string> {
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using T = std::string;
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template <typename U>
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static bool Write(ProducerView<U>& aProducerView, const T& aArg) {
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const auto size = aArg.size();
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auto status = aProducerView.WriteParam(size);
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if (!status) return status;
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status = aProducerView.WriteFromRange(Range<const char>{aArg.data(), size});
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return status;
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}
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template <typename U>
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static bool Read(ConsumerView<U>& aConsumerView, T* aArg) {
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size_t size;
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auto status = aConsumerView.ReadParam(&size);
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if (!status) return status;
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const auto view = aConsumerView.template ReadRange<char>(size);
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if (!view) return false;
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aArg->assign(view->begin().get(), size);
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return status;
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}
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};
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template <typename U>
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struct QueueParamTraits<std::vector<U>> {
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using T = std::vector<U>;
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template <typename V>
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static bool Write(ProducerView<V>& aProducerView, const T& aArg) {
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auto status = aProducerView.WriteParam(aArg.size());
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if (!status) return status;
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for (const auto& cur : aArg) {
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status = aProducerView.WriteParam(cur);
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if (!status) return status;
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}
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return status;
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}
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template <typename V>
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static bool Read(ConsumerView<V>& aConsumerView, T* aArg) {
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size_t size;
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auto status = aConsumerView.ReadParam(&size);
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if (!status) return status;
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aArg->resize(size);
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for (auto& cur : *aArg) {
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status = aConsumerView.ReadParam(&cur);
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if (!status) return status;
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}
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return status;
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}
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};
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template <>
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struct QueueParamTraits<WebGLExtensionID>
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: public ContiguousEnumSerializer<WebGLExtensionID,
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WebGLExtensionID::ANGLE_instanced_arrays,
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WebGLExtensionID::Max> {};
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template <>
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struct QueueParamTraits<CompileResult> {
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using T = CompileResult;
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template <typename U>
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static bool Write(ProducerView<U>& aProducerView, const T& aArg) {
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aProducerView.WriteParam(aArg.pending);
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aProducerView.WriteParam(aArg.log);
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aProducerView.WriteParam(aArg.translatedSource);
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return aProducerView.WriteParam(aArg.success);
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}
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template <typename U>
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static bool Read(ConsumerView<U>& aConsumerView, T* aArg) {
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aConsumerView.ReadParam(&aArg->pending);
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aConsumerView.ReadParam(&aArg->log);
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aConsumerView.ReadParam(&aArg->translatedSource);
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return aConsumerView.ReadParam(&aArg->success);
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}
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};
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template <>
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struct QueueParamTraits<mozilla::layers::TextureType>
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: public ContiguousEnumSerializer<mozilla::layers::TextureType,
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mozilla::layers::TextureType::Unknown,
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mozilla::layers::TextureType::Last> {};
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template <>
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struct QueueParamTraits<mozilla::gfx::SurfaceFormat>
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: public ContiguousEnumSerializerInclusive<
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mozilla::gfx::SurfaceFormat, mozilla::gfx::SurfaceFormat::B8G8R8A8,
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mozilla::gfx::SurfaceFormat::UNKNOWN> {};
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template <>
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struct QueueParamTraits<gfxAlphaType>
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: public ContiguousEnumSerializerInclusive<
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gfxAlphaType, gfxAlphaType::Opaque, gfxAlphaType::NonPremult> {};
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} // namespace webgl
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} // namespace mozilla
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#endif // WEBGLQUEUEPARAMTRAITS_H_
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