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https://github.com/charles-lunarg/vk-bootstrap.git
synced 2024-11-10 02:41:47 +00:00
Use uint32_t in Queues everywhere, add QUEUE_INDEX_MAX_VALUE as sentinel
This commit removes the many casts from int to uint and back, as -1 was used as a sentinel value. Because thats confusing and leads to many casts everywhere it was decided to add a sentinel value and compare everything to that to determine if a queue index is valid or not.
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@ -911,79 +911,80 @@ bool supports_features (VkPhysicalDeviceFeatures supported, VkPhysicalDeviceFeat
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return true;
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}
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// finds the first queue which supports graphics operations. returns -1 if none is found
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int get_graphics_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (size_t i = 0; i < families.size (); i++) {
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if (families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) return static_cast<int> (i);
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// finds the first queue which supports graphics operations. returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_graphics_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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if (families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) return i;
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}
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return -1;
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return QUEUE_INDEX_MAX_VALUE;
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}
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// finds a compute queue which is separate from the graphics queue and tries to find one without
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// transfer support returns -1 if none is found
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int get_separate_compute_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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int compute = -1;
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for (size_t i = 0; i < families.size (); i++) {
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// transfer support returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_separate_compute_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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uint32_t compute = QUEUE_INDEX_MAX_VALUE;
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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if ((families[i].queueFlags & VK_QUEUE_COMPUTE_BIT) &&
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((families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) == 0)) {
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if ((families[i].queueFlags & VK_QUEUE_TRANSFER_BIT) == 0) {
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return static_cast<int> (i);
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return i;
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} else {
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compute = static_cast<int> (i);
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compute = i;
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}
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}
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}
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return compute;
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}
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// finds a transfer queue which is separate from the graphics queue and tries to find one without
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// compute support returns -1 if none is found
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int get_separate_transfer_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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int transfer = -1;
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for (size_t i = 0; i < families.size (); i++) {
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// compute support returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_separate_transfer_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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uint32_t transfer = QUEUE_INDEX_MAX_VALUE;
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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if ((families[i].queueFlags & VK_QUEUE_TRANSFER_BIT) &&
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((families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) == 0)) {
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if ((families[i].queueFlags & VK_QUEUE_COMPUTE_BIT) == 0) {
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return static_cast<int> (i);
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return i;
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} else {
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transfer = static_cast<int> (i);
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transfer = i;
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}
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}
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}
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return transfer;
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}
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// finds the first queue which supports only compute (not graphics or transfer). returns -1 if none is found
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int get_dedicated_compute_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (size_t i = 0; i < families.size (); i++) {
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// finds the first queue which supports only compute (not graphics or transfer). returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_dedicated_compute_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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if ((families[i].queueFlags & VK_QUEUE_COMPUTE_BIT) &&
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(families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) == 0 &&
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(families[i].queueFlags & VK_QUEUE_TRANSFER_BIT) == 0)
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return static_cast<int> (i);
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return i;
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}
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return -1;
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return QUEUE_INDEX_MAX_VALUE;
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}
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// finds the first queue which supports only transfer (not graphics or compute). returns -1 if none is found
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int get_dedicated_transfer_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (size_t i = 0; i < families.size (); i++) {
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// finds the first queue which supports only transfer (not graphics or compute). returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_dedicated_transfer_queue_index (std::vector<VkQueueFamilyProperties> const& families) {
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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if ((families[i].queueFlags & VK_QUEUE_TRANSFER_BIT) &&
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(families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) == 0 &&
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(families[i].queueFlags & VK_QUEUE_COMPUTE_BIT) == 0)
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return static_cast<int> (i);
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return i;
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}
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return -1;
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return QUEUE_INDEX_MAX_VALUE;
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}
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// finds the first queue which supports presenting. returns -1 if none is found
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int get_present_queue_index (VkPhysicalDevice const phys_device,
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// finds the first queue which supports presenting. returns QUEUE_INDEX_MAX_VALUE if none is found
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uint32_t get_present_queue_index (VkPhysicalDevice const phys_device,
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VkSurfaceKHR const surface,
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std::vector<VkQueueFamilyProperties> const& families) {
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for (size_t i = 0; i < families.size (); i++) {
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for (uint32_t i = 0; i < static_cast<uint32_t> (families.size ()); i++) {
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VkBool32 presentSupport = false;
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if (surface != VK_NULL_HANDLE) {
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VkResult res = detail::vulkan_functions ().fp_vkGetPhysicalDeviceSurfaceSupportKHR (
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phys_device, static_cast<uint32_t> (i), surface, &presentSupport);
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if (res != VK_SUCCESS) return -1; // TODO: determine if this should fail another way
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phys_device, i, surface, &presentSupport);
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if (res != VK_SUCCESS)
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return QUEUE_INDEX_MAX_VALUE; // TODO: determine if this should fail another way
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}
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if (presentSupport == VK_TRUE) return static_cast<int> (i);
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if (presentSupport == VK_TRUE) return i;
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}
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return -1;
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return QUEUE_INDEX_MAX_VALUE;
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}
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} // namespace detail
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@ -1008,13 +1009,18 @@ PhysicalDeviceSelector::Suitable PhysicalDeviceSelector::is_device_suitable (Phy
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if (criteria.required_version > pd.device_properties.apiVersion) return Suitable::no;
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if (criteria.desired_version > pd.device_properties.apiVersion) suitable = Suitable::partial;
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bool dedicated_compute = detail::get_dedicated_compute_queue_index (pd.queue_families) >= 0;
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bool dedicated_transfer = detail::get_dedicated_transfer_queue_index (pd.queue_families) >= 0;
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bool separate_compute = detail::get_separate_compute_queue_index (pd.queue_families) >= 0;
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bool separate_transfer = detail::get_separate_transfer_queue_index (pd.queue_families) >= 0;
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bool dedicated_compute =
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detail::get_dedicated_compute_queue_index (pd.queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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bool dedicated_transfer =
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detail::get_dedicated_transfer_queue_index (pd.queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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bool separate_compute =
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detail::get_separate_compute_queue_index (pd.queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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bool separate_transfer =
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detail::get_separate_transfer_queue_index (pd.queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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bool present_queue =
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detail::get_present_queue_index (pd.phys_device, system_info.surface, pd.queue_families) >= 0;
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detail::get_present_queue_index (pd.phys_device, system_info.surface, pd.queue_families) !=
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detail::QUEUE_INDEX_MAX_VALUE;
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if (criteria.require_dedicated_compute_queue && !dedicated_compute) return Suitable::no;
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if (criteria.require_dedicated_transfer_queue && !dedicated_transfer) return Suitable::no;
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@ -1237,16 +1243,16 @@ PhysicalDeviceSelector& PhysicalDeviceSelector::select_first_device_unconditiona
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}
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bool PhysicalDevice::has_dedicated_compute_queue () const {
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return detail::get_dedicated_compute_queue_index (queue_families) >= 0;
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return detail::get_dedicated_compute_queue_index (queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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}
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bool PhysicalDevice::has_separate_compute_queue () const {
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return detail::get_separate_compute_queue_index (queue_families) >= 0;
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return detail::get_separate_compute_queue_index (queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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}
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bool PhysicalDevice::has_dedicated_transfer_queue () const {
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return detail::get_dedicated_transfer_queue_index (queue_families) >= 0;
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return detail::get_dedicated_transfer_queue_index (queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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}
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bool PhysicalDevice::has_separate_transfer_queue () const {
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return detail::get_separate_transfer_queue_index (queue_families) >= 0;
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return detail::get_separate_transfer_queue_index (queue_families) != detail::QUEUE_INDEX_MAX_VALUE;
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}
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std::vector<VkQueueFamilyProperties> PhysicalDevice::get_queue_families () const {
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return queue_families;
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@ -1255,44 +1261,50 @@ std::vector<VkQueueFamilyProperties> PhysicalDevice::get_queue_families () const
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// ---- Queues ---- //
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detail::Result<uint32_t> Device::get_queue_index (QueueType type) const {
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int index = -1;
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uint32_t index = detail::QUEUE_INDEX_MAX_VALUE;
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switch (type) {
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case QueueType::present:
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index = detail::get_present_queue_index (physical_device.physical_device, surface, queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::present_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::present_unavailable };
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break;
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case QueueType::graphics:
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index = detail::get_graphics_queue_index (queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::graphics_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::graphics_unavailable };
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break;
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case QueueType::compute:
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index = detail::get_separate_compute_queue_index (queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::compute_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::compute_unavailable };
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break;
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case QueueType::transfer:
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index = detail::get_separate_transfer_queue_index (queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::transfer_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::transfer_unavailable };
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break;
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default:
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return detail::Result<uint32_t>{ QueueError::invalid_queue_family_index };
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}
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return static_cast<uint32_t> (index);
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return index;
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}
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detail::Result<uint32_t> Device::get_dedicated_queue_index (QueueType type) const {
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int index = -1;
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uint32_t index = detail::QUEUE_INDEX_MAX_VALUE;
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switch (type) {
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case QueueType::compute:
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index = detail::get_dedicated_compute_queue_index (queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::compute_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::compute_unavailable };
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break;
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case QueueType::transfer:
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index = detail::get_dedicated_transfer_queue_index (queue_families);
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if (index < 0) return detail::Result<uint32_t>{ QueueError::transfer_unavailable };
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if (index == detail::QUEUE_INDEX_MAX_VALUE)
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return detail::Result<uint32_t>{ QueueError::transfer_unavailable };
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break;
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default:
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return detail::Result<uint32_t>{ QueueError::invalid_queue_family_index };
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}
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return static_cast<uint32_t> (index);
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return index;
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}
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namespace detail {
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VkQueue get_queue (VkDevice device, uint32_t family) {
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@ -1548,22 +1560,21 @@ SwapchainBuilder::SwapchainBuilder (Device const& device, VkSurfaceKHR const sur
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SwapchainBuilder::SwapchainBuilder (VkPhysicalDevice const physical_device,
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VkDevice const device,
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VkSurfaceKHR const surface,
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int32_t graphics_queue_index,
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int32_t present_queue_index) {
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uint32_t graphics_queue_index,
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uint32_t present_queue_index) {
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info.physical_device = physical_device;
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info.device = device;
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info.surface = surface;
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info.graphics_queue_index = static_cast<uint32_t> (graphics_queue_index);
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info.present_queue_index = static_cast<uint32_t> (present_queue_index);
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if (graphics_queue_index < 0 || present_queue_index < 0) {
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info.graphics_queue_index = graphics_queue_index;
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info.present_queue_index = present_queue_index;
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if (graphics_queue_index == detail::QUEUE_INDEX_MAX_VALUE || present_queue_index == detail::QUEUE_INDEX_MAX_VALUE) {
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auto queue_families = detail::get_vector_noerror<VkQueueFamilyProperties> (
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detail::vulkan_functions ().fp_vkGetPhysicalDeviceQueueFamilyProperties, physical_device);
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if (graphics_queue_index < 0)
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info.graphics_queue_index =
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static_cast<uint32_t> (detail::get_graphics_queue_index (queue_families));
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if (present_queue_index < 0)
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info.present_queue_index = static_cast<uint32_t> (
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detail::get_present_queue_index (physical_device, surface, queue_families));
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if (graphics_queue_index == detail::QUEUE_INDEX_MAX_VALUE)
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info.graphics_queue_index = detail::get_graphics_queue_index (queue_families);
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if (present_queue_index == detail::QUEUE_INDEX_MAX_VALUE)
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info.present_queue_index =
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detail::get_present_queue_index (physical_device, surface, queue_families);
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}
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}
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detail::Result<Swapchain> SwapchainBuilder::build () const {
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@ -470,6 +470,11 @@ class PhysicalDeviceSelector {
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// ---- Queue ---- //
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enum class QueueType { present, graphics, compute, transfer };
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namespace detail {
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// Sentinel value, used in implementation only
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const int QUEUE_INDEX_MAX_VALUE = 65536;
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}
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// ---- Device ---- //
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struct Device {
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@ -561,8 +566,8 @@ class SwapchainBuilder {
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explicit SwapchainBuilder (VkPhysicalDevice const physical_device,
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VkDevice const device,
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VkSurfaceKHR const surface,
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int32_t graphics_queue_index = -1,
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int32_t present_queue_index = -1);
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uint32_t graphics_queue_index = detail::QUEUE_INDEX_MAX_VALUE,
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uint32_t present_queue_index = detail::QUEUE_INDEX_MAX_VALUE);
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detail::Result<Swapchain> build () const;
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