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author | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-02-03 14:17:59 +0000 |
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committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-02-03 14:17:59 +0000 |
commit | 7bb4bfc23f3764770c7728d00dbe272a035db146 (patch) | |
tree | 679b48ea9e3cddeeed48e5668e609f026e2287c4 | |
parent | Merge branch 'geo-shadows' (diff) | |
parent | Allow specifying a target other than array buffer (diff) | |
download | ilt-7bb4bfc23f3764770c7728d00dbe272a035db146.tar.bz2 ilt-7bb4bfc23f3764770c7728d00dbe272a035db146.tar.xz ilt-7bb4bfc23f3764770c7728d00dbe272a035db146.zip |
Merge branch 'glcontainer-fix'
-rw-r--r-- | lib/glContainer.h | 213 | ||||
-rw-r--r-- | test/test-glContainer.cpp | 115 | ||||
-rw-r--r-- | test/test-instancing.cpp | 6 |
3 files changed, 217 insertions, 117 deletions
diff --git a/lib/glContainer.h b/lib/glContainer.h index 2ccc1c2..5cbb038 100644 --- a/lib/glContainer.h +++ b/lib/glContainer.h @@ -7,6 +7,9 @@ #include <utility> #include <vector> +static_assert(GL_READ_ONLY < GL_READ_WRITE); +static_assert(GL_WRITE_ONLY < GL_READ_WRITE); + template<typename T> class glContainer { public: using span = std::span<T>; @@ -23,7 +26,7 @@ public: using const_reverse_iterator = const_span::reverse_iterator; static constexpr bool is_trivial_dest = std::is_trivially_destructible_v<T>; - glContainer() + explicit glContainer(GLenum target = GL_ARRAY_BUFFER) : target_ {target} { allocBuffer(1); } @@ -38,7 +41,8 @@ public: clear(); } - template<template<typename, typename...> typename C> explicit glContainer(const C<T> & src) + template<template<typename, typename...> typename C> + explicit glContainer(const C<T> & src, GLenum target = GL_ARRAY_BUFFER) : target_ {target} { reserve(src.size()); std::copy(src.begin(), src.end(), std::back_inserter(*this)); @@ -49,85 +53,85 @@ public: [[nodiscard]] iterator begin() { - map(); - return data_.begin(); + map(GL_READ_WRITE); + return mkspan().begin(); } [[nodiscard]] iterator end() { - map(); - return data_.end(); + map(GL_READ_WRITE); + return mkspan().end(); } [[nodiscard]] const_iterator begin() const { - map(); - return const_span {data_}.begin(); + map(GL_READ_ONLY); + return mkcspan().begin(); } [[nodiscard]] const_iterator end() const { - map(); - return const_span {data_}.end(); + map(GL_READ_ONLY); + return mkcspan().end(); } [[nodiscard]] const_iterator cbegin() const { - map(); - return const_span {data_}.begin(); + map(GL_READ_ONLY); + return mkcspan().begin(); } [[nodiscard]] const_iterator cend() const { - map(); - return const_span {data_}.end(); + map(GL_READ_ONLY); + return mkcspan().end(); } [[nodiscard]] reverse_iterator rbegin() { - map(); - return data_.rbegin(); + map(GL_READ_WRITE); + return mkspan().rbegin(); } [[nodiscard]] reverse_iterator rend() { - map(); - return data_.rend(); + map(GL_READ_WRITE); + return mkspan().rend(); } [[nodiscard]] const_reverse_iterator rbegin() const { - map(); - return const_span {data_}.rbegin(); + map(GL_READ_ONLY); + return mkcspan().rbegin(); } [[nodiscard]] const_reverse_iterator rend() const { - map(); - return const_span {data_}.rend(); + map(GL_READ_ONLY); + return mkcspan().rend(); } [[nodiscard]] const_reverse_iterator crbegin() const { - map(); - return const_span {data_}.rbegin(); + map(GL_READ_ONLY); + return mkcspan().rbegin(); } [[nodiscard]] const_reverse_iterator crend() const { - map(); - return const_span {data_}.rend(); + map(GL_READ_ONLY); + return mkcspan().rend(); } [[nodiscard]] const auto & @@ -148,13 +152,13 @@ public: if (pos >= size()) { throw std::out_of_range {__FUNCTION__}; } - if (data_.data()) { - data_[pos] = value; + if (data_) { + mkspan()[pos] = value; } else { - glBindBuffer(GL_ARRAY_BUFFER, buffer_); - glBufferSubData(GL_ARRAY_BUFFER, static_cast<GLintptr>(pos * sizeof(T)), sizeof(value), &value); - glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(target_, buffer_); + glBufferSubData(target_, static_cast<GLintptr>(pos * sizeof(T)), sizeof(value), &value); + glBindBuffer(target_, 0); } } @@ -164,8 +168,8 @@ public: if (pos >= size()) { throw std::out_of_range {__FUNCTION__}; } - map(); - return data_[pos]; + map(GL_READ_WRITE); + return mkspan()[pos]; } [[nodiscard]] const_reference_type @@ -174,64 +178,64 @@ public: if (pos >= size()) { throw std::out_of_range {__FUNCTION__}; } - map(); - return data_[pos]; + map(GL_READ_ONLY); + return mkcspan()[pos]; } [[nodiscard]] reference_type operator[](size_type pos) { - map(); - return data_[pos]; + map(GL_READ_WRITE); + return mkspan()[pos]; } [[nodiscard]] const_reference_type operator[](size_type pos) const { - map(); - return data_[pos]; + map(GL_READ_ONLY); + return mkcspan()[pos]; } [[nodiscard]] pointer_type data() { - map(); - return data_.data(); + map(GL_READ_WRITE); + return data_; } [[nodiscard]] const_pointer_type data() const { - map(); - return data_.data(); + map(GL_READ_ONLY); + return data_; } [[nodiscard]] reference_type front() { - map(); - return data_.front(); + map(GL_READ_WRITE); + return mkspan().front(); } [[nodiscard]] reference_type back() { - map(); - return data_.back(); + map(GL_READ_WRITE); + return mkspan().back(); } [[nodiscard]] const_reference_type front() const { - map(); - return data_.front(); + map(GL_READ_ONLY); + return mkcspan().front(); } [[nodiscard]] const_reference_type back() const { - map(); - return data_.back(); + map(GL_READ_ONLY); + return mkcspan().back(); } [[nodiscard]] bool @@ -249,9 +253,12 @@ public: void unmap() const { - if (data_.data()) { - glUnmapNamedBuffer(buffer_); + if (data_) { + glBindBuffer(target_, buffer_); + glUnmapBuffer(target_); + glBindBuffer(target_, 0); data_ = {}; + access_ = {}; } } @@ -272,6 +279,7 @@ public: void resize(size_type newSize) + requires std::is_default_constructible_v<T> { if (newSize == size_) { return; @@ -290,8 +298,10 @@ public: allocBuffer(newSize); mapForAdd(); } - for (auto uninitialised = data_.data() + size_; uninitialised < data_.data() + newSize; ++uninitialised) { - new (uninitialised) T {}; + if (newSize > size_) { + for (auto & uninitialised : mkspan().subspan(size_, newSize - size_)) { + new (&uninitialised) T {}; + } } setSize(newSize); } @@ -305,10 +315,10 @@ public: std::vector<T> existing; existing.reserve(size_); - map(); + map(is_trivial_dest ? GL_READ_ONLY : GL_READ_WRITE); std::move(begin(), end(), std::back_inserter(existing)); allocBuffer(size_); - map(); + map(GL_READ_WRITE); std::move(existing.begin(), existing.end(), begin()); } @@ -316,7 +326,7 @@ public: clear() noexcept(is_trivial_dest) { if constexpr (!is_trivial_dest) { - map(); + map(GL_READ_WRITE); std::for_each(begin(), end(), [](auto && v) { v.~T(); }); @@ -327,11 +337,12 @@ public: template<typename... P> reference_type emplace_back(P &&... ps) + requires std::is_constructible_v<T, P...> { auto newSize = size_ + 1; reserve(newSize); mapForAdd(); - new (&data_[size_]) T {std::forward<P>(ps)...}; + new (&*end()) T {std::forward<P>(ps)...}; setSize(newSize); return back(); } @@ -339,43 +350,44 @@ public: template<typename... P> iterator emplace(iterator pos, P &&... ps) + requires std::is_nothrow_constructible_v<T, P...> { - static_assert(std::is_nothrow_constructible_v<T, P...>); auto newSize = size_ + 1; const auto idx = pos - begin(); reserve(newSize); mapForAdd(); - auto newT = begin() + idx; - std::move_backward(newT, end(), end() + 1); - newT->~T(); - new (&*newT) T {std::forward<P>(ps)...}; + pos = begin() + idx; + std::move_backward(pos, end(), end() + 1); + pos->~T(); + new (&*pos) T {std::forward<P>(ps)...}; setSize(newSize); return pos; } reference_type push_back(T p) + requires std::is_move_constructible_v<T> { auto newSize = size_ + 1; reserve(newSize); mapForAdd(); - new (&data_[size_]) T {std::move(p)}; + new (&*end()) T {std::move(p)}; setSize(newSize); return back(); } iterator insert(iterator pos, T p) + requires std::is_nothrow_move_constructible_v<T> { - static_assert(std::is_nothrow_move_constructible_v<T>); auto newSize = size_ + 1; const auto idx = pos - begin(); reserve(newSize); mapForAdd(); - auto newT = begin() + idx; - std::move_backward(newT, end(), end() + 1); - newT->~T(); - new (&*newT) T {std::move(p)}; + pos = begin() + idx; + std::move_backward(pos, end(), end() + 1); + pos->~T(); + new (&*pos) T {std::move(p)}; setSize(newSize); return pos; } @@ -384,12 +396,10 @@ public: pop_back() { if constexpr (!is_trivial_dest) { - map(); - data_[--size_].~T(); - } - else { - --size_; + map(GL_READ_WRITE); + back().~T(); } + --size_; } void @@ -402,7 +412,7 @@ public: erase(iterator pos, iterator to) { const auto eraseSize = to - pos; - map(); + map(GL_READ_WRITE); std::move(to, end(), pos); if constexpr (!is_trivial_dest) { std::for_each(end() - eraseSize, end(), [](auto && v) { @@ -416,7 +426,7 @@ protected: void setSize(size_type s) { - data_ = {data_.data(), size_ = s}; + size_ = s; } void @@ -425,32 +435,63 @@ protected: if (newCapacity == 0) { return allocBuffer(1); } - glBindBuffer(GL_ARRAY_BUFFER, buffer_); - glBufferData(GL_ARRAY_BUFFER, static_cast<GLsizeiptr>(sizeof(T) * newCapacity), nullptr, GL_DYNAMIC_DRAW); - glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(target_, buffer_); + glBufferData(target_, static_cast<GLsizeiptr>(sizeof(T) * newCapacity), nullptr, GL_DYNAMIC_DRAW); + glBindBuffer(target_, 0); capacity_ = newCapacity; data_ = {}; + access_ = {}; } void - map() const + map(GLenum access) const { if (size_ > 0) { - mapForAdd(); + mapMode(access); } } void mapForAdd() const { - if (!data_.data()) { - data_ = {static_cast<T *>(glMapNamedBuffer(buffer_, GL_READ_WRITE)), size_}; - assert(data_.data()); + if (!data_) { + mapMode(GL_READ_WRITE); + } + } + + void + mapMode(GLenum access) const + { + if (data_ && access_ < access) { + unmap(); + } + if (!data_) { + glBindBuffer(target_, buffer_); + data_ = static_cast<T *>(glMapBuffer(target_, access)); + glBindBuffer(target_, 0); + assert(data_); + access_ = access; } } + span + mkspan() const + { + assert(!size_ || data_); + return span {data_, size_}; + } + + const_span + mkcspan() const + { + assert(!size_ || data_); + return const_span {data_, size_}; + } + glBuffer buffer_; + GLenum target_; std::size_t capacity_ {}; std::size_t size_ {}; - mutable span data_; + mutable T * data_; + mutable GLenum access_ {}; }; diff --git a/test/test-glContainer.cpp b/test/test-glContainer.cpp index ccf3b90..ec1c0d1 100644 --- a/test/test-glContainer.cpp +++ b/test/test-glContainer.cpp @@ -1,6 +1,5 @@ #define BOOST_TEST_MODULE glContainer -#include "testHelpers.h" #include "testMainWindow.h" #include "ui/applicationBase.h" #include <boost/test/data/test_case.hpp> @@ -23,14 +22,69 @@ BOOST_FIXTURE_TEST_SUITE(i, glContainer<int>) BOOST_AUTO_TEST_CASE(createDestroy, *boost::unit_test::timeout(1)) { - BOOST_CHECK(!data_.data()); - BOOST_CHECK_NO_THROW(map()); - BOOST_REQUIRE(!data_.data()); + // Unmapped + BOOST_CHECK(!data_); + BOOST_CHECK(!access_); + // Request map, but empty + BOOST_CHECK_NO_THROW(map(GL_READ_ONLY)); + BOOST_REQUIRE(!data_); + BOOST_REQUIRE(!access_); + BOOST_CHECK_NO_THROW(map(GL_READ_WRITE)); + BOOST_REQUIRE(!data_); + BOOST_REQUIRE(!access_); + // Add something BOOST_CHECK_NO_THROW(emplace_back(0)); - BOOST_CHECK_NO_THROW(map()); - BOOST_REQUIRE(data_.data()); + BOOST_REQUIRE(data_); + BOOST_REQUIRE_EQUAL(access_, GL_READ_WRITE); + // Unmap + BOOST_CHECK_NO_THROW(unmap()); + BOOST_REQUIRE(!data_); + BOOST_REQUIRE(!access_); + // Map RO + BOOST_CHECK_NO_THROW(map(GL_READ_ONLY)); + BOOST_REQUIRE(data_); + BOOST_REQUIRE_EQUAL(access_, GL_READ_ONLY); + // Map RW upgradde + BOOST_CHECK_NO_THROW(map(GL_READ_WRITE)); + BOOST_REQUIRE(data_); + BOOST_REQUIRE_EQUAL(access_, GL_READ_WRITE); + // Map RO downgradde, no change + BOOST_CHECK_NO_THROW(map(GL_READ_ONLY)); + BOOST_REQUIRE(data_); + BOOST_REQUIRE_EQUAL(access_, GL_READ_WRITE); + // Unmap + BOOST_CHECK_NO_THROW(unmap()); + BOOST_CHECK(!data_); + BOOST_CHECK(!access_); +} + +BOOST_AUTO_TEST_CASE(mapModes) +{ + BOOST_CHECK_EQUAL(std::accumulate(begin(), end(), 0), 0); + BOOST_CHECK(!data_); + BOOST_CHECK(!access_); + + BOOST_CHECK_NO_THROW(push_back(1)); + BOOST_CHECK_NO_THROW(push_back(2)); + BOOST_CHECK_NO_THROW(push_back(3)); + BOOST_CHECK_NO_THROW(push_back(4)); + BOOST_CHECK_NO_THROW(unmap()); + + BOOST_CHECK_EQUAL(std::accumulate(cbegin(), cend(), 0), 10); + BOOST_CHECK(data_); + BOOST_CHECK_EQUAL(access_, GL_READ_ONLY); + BOOST_CHECK_NO_THROW(unmap()); + + BOOST_CHECK_EQUAL(std::accumulate(begin(), end(), 0), 10); + BOOST_CHECK(data_); + BOOST_CHECK_EQUAL(access_, GL_READ_WRITE); + BOOST_CHECK_NO_THROW(unmap()); + + const auto & c = *this; + BOOST_CHECK_EQUAL(std::accumulate(c.begin(), c.end(), 0), 10); + BOOST_CHECK(data_); + BOOST_CHECK_EQUAL(access_, GL_READ_ONLY); BOOST_CHECK_NO_THROW(unmap()); - BOOST_CHECK(!data_.data()); } BOOST_AUTO_TEST_CASE(push_back_test, *boost::unit_test::timeout(1)) @@ -44,7 +98,6 @@ BOOST_AUTO_TEST_CASE(push_back_test, *boost::unit_test::timeout(1)) BOOST_CHECK_NO_THROW(push_back(5)); BOOST_CHECK_EQUAL(capacity_, 8); BOOST_CHECK_EQUAL(size_, 5); - BOOST_CHECK_EQUAL(data_.size(), 5); { std::array expected1 {1, 2, 3, 4, 5}; BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end()); @@ -166,7 +219,7 @@ BOOST_AUTO_TEST_CASE(getters) BOOST_CHECK_EQUAL(2, at(1)); BOOST_CHECK_EQUAL(1, (*this)[0]); BOOST_CHECK_EQUAL(2, (*this)[1]); - BOOST_CHECK_EQUAL(data_.data(), data()); + BOOST_CHECK_EQUAL(data_, data()); BOOST_CHECK_THROW(std::ignore = at(2), std::out_of_range); const auto & constCont {*this}; @@ -183,7 +236,7 @@ BOOST_AUTO_TEST_CASE(getters) BOOST_CHECK_EQUAL(2, constCont.at(1)); BOOST_CHECK_EQUAL(1, constCont[0]); BOOST_CHECK_EQUAL(2, constCont[1]); - BOOST_CHECK_EQUAL(data_.data(), constCont.data()); + BOOST_CHECK_EQUAL(data_, constCont.data()); BOOST_CHECK_THROW(std::ignore = constCont.at(2), std::out_of_range); } @@ -209,16 +262,16 @@ BOOST_AUTO_TEST_CASE(random_write) BOOST_CHECK_NO_THROW(resize(3)); BOOST_CHECK_EQUAL(size(), 3); BOOST_CHECK_NO_THROW(unmap()); - BOOST_REQUIRE(!data_.data()); + BOOST_REQUIRE(!data_); BOOST_CHECK_NO_THROW(at(0, 10)); BOOST_CHECK_NO_THROW(at(1, 20)); BOOST_CHECK_NO_THROW(at(2, 30)); - BOOST_CHECK(!data_.data()); + BOOST_CHECK(!data_); { std::array expected1 {10, 20, 30}; BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end()); } - BOOST_CHECK(data_.data()); + BOOST_CHECK(data_); BOOST_CHECK_NO_THROW(at(1, 40)); { std::array expected1 {10, 40, 30}; @@ -325,27 +378,33 @@ BOOST_FIXTURE_TEST_SUITE(c, glContainer<C>) BOOST_AUTO_TEST_CASE(basic) { - BOOST_CHECK_NO_THROW(emplace_back(1, 2.f)); + BOOST_CHECK_NO_THROW(emplace_back(1, 2.F)); BOOST_CHECK_EQUAL(1, begin()->x); - BOOST_CHECK_EQUAL(2.f, begin()->y); + BOOST_CHECK_EQUAL(2.F, begin()->y); BOOST_CHECK_NO_THROW(begin()->x = 3); BOOST_CHECK_EQUAL(3, begin()->x); - BOOST_CHECK_NO_THROW(push_back(C {4, 5.f})); + BOOST_CHECK_NO_THROW(push_back(C {4, 5.F})); BOOST_CHECK_EQUAL(3, begin()->x); - BOOST_CHECK_EQUAL(2.f, begin()->y); + BOOST_CHECK_EQUAL(2.F, begin()->y); BOOST_CHECK_EQUAL(4, rbegin()->x); - BOOST_CHECK_EQUAL(5.f, rbegin()->y); + BOOST_CHECK_EQUAL(5.F, rbegin()->y); } BOOST_AUTO_TEST_SUITE_END(); struct CC { + CC() = default; + + CC(int a, float b) noexcept : x {a}, y {b} { } + ~CC() { ++x; } + DEFAULT_MOVE_COPY(CC); + int x; float y; }; @@ -356,17 +415,17 @@ BOOST_FIXTURE_TEST_SUITE(cc, glContainer<CC>) BOOST_AUTO_TEST_CASE(basic) { - BOOST_CHECK_NO_THROW(emplace_back(1, 2.f)); + BOOST_CHECK_NO_THROW(emplace_back(1, 2.F)); BOOST_CHECK_EQUAL(1, begin()->x); - BOOST_CHECK_EQUAL(2.f, begin()->y); + BOOST_CHECK_EQUAL(2.F, begin()->y); BOOST_CHECK_NO_THROW(begin()->x = 3); BOOST_CHECK_EQUAL(3, begin()->x); - BOOST_CHECK_NO_THROW(push_back(CC {4, 5.f})); + BOOST_CHECK_NO_THROW(push_back(CC {4, 5.F})); BOOST_CHECK_EQUAL(3, begin()->x); - BOOST_CHECK_EQUAL(2.f, begin()->y); + BOOST_CHECK_EQUAL(2.F, begin()->y); BOOST_CHECK_EQUAL(4, rbegin()->x); - BOOST_CHECK_EQUAL(5.f, rbegin()->y); + BOOST_CHECK_EQUAL(5.F, rbegin()->y); BOOST_CHECK_NO_THROW(pop_back()); BOOST_CHECK_EQUAL(size(), 1); BOOST_CHECK_EQUAL(capacity(), 2); @@ -380,11 +439,11 @@ BOOST_AUTO_TEST_CASE(basic) BOOST_AUTO_TEST_CASE(insert_remove_test) { - BOOST_CHECK_NO_THROW(emplace_back(1, 2.f)); - BOOST_CHECK_NO_THROW(emplace_back(3, 4.f)); - BOOST_CHECK_NO_THROW(emplace(begin(), 5, 6.f)); - BOOST_CHECK_NO_THROW(emplace(begin() + 1, 7, 8.f)); - BOOST_CHECK_NO_THROW(emplace(begin() + 2, 9, 10.f)); + BOOST_CHECK_NO_THROW(emplace_back(1, 2.F)); + BOOST_CHECK_NO_THROW(emplace_back(3, 4.F)); + BOOST_CHECK_NO_THROW(emplace(begin(), 5, 6.F)); + BOOST_CHECK_NO_THROW(emplace(begin() + 1, 7, 8.F)); + BOOST_CHECK_NO_THROW(emplace(begin() + 2, 9, 10.F)); BOOST_CHECK_EQUAL(capacity(), 8); BOOST_CHECK_EQUAL(size(), 5); BOOST_CHECK_NO_THROW(shrink_to_fit()); diff --git a/test/test-instancing.cpp b/test/test-instancing.cpp index 98133f3..c1860a4 100644 --- a/test/test-instancing.cpp +++ b/test/test-instancing.cpp @@ -56,11 +56,11 @@ BOOST_AUTO_TEST_CASE(autoMapUnmap) { { auto proxy = acquire(); - BOOST_CHECK(data_.data()); + BOOST_CHECK(data_); std::ignore = bufferName(); - BOOST_CHECK(data_.data()); + BOOST_CHECK(data_); BOOST_CHECK_EQUAL(1, size()); - BOOST_CHECK(!data_.data()); + BOOST_CHECK(!data_); } BOOST_CHECK_EQUAL(0, size()); } |