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Removed unused query result buffer

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This commit is contained in:
saschawillems 2017-11-11 15:28:18 +01:00
parent 0588108e64
commit f62115ffca
1 changed files with 3 additions and 33 deletions
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36
occlusionquery/occlusionquery.cpp
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@ -76,12 +76,6 @@ public:
VkDescriptorSet descriptorSet;
VkDescriptorSetLayout descriptorSetLayout;
// Stores occlusion query results
struct {
VkBuffer buffer;
VkDeviceMemory memory;
} queryResult;
// Pool that stores all occlusion queries
VkQueryPool queryPool;
@ -111,9 +105,6 @@ public:
vkDestroyQueryPool(device, queryPool, nullptr);
vkDestroyBuffer(device, queryResult.buffer, nullptr);
vkFreeMemory(device, queryResult.memory, nullptr);
uniformBuffers.occluder.destroy();
uniformBuffers.sphere.destroy();
uniformBuffers.teapot.destroy();
@ -123,34 +114,13 @@ public:
models.teapot.destroy();
}
// Create a buffer for storing the query result
// Setup a query pool
void setupQueryResultBuffer()
// Create a query pool for storing the occlusion query result
void setupQueryPool()
{
uint32_t bufSize = 2 * sizeof(uint64_t);
VkMemoryRequirements memReqs;
VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
VkBufferCreateInfo bufferCreateInfo =
vks::initializers::bufferCreateInfo(
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
bufSize);
// Results are saved in a host visible buffer for easy access by the application
VK_CHECK_RESULT(vkCreateBuffer(device, &bufferCreateInfo, nullptr, &queryResult.buffer));
vkGetBufferMemoryRequirements(device, queryResult.buffer, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &queryResult.memory));
VK_CHECK_RESULT(vkBindBufferMemory(device, queryResult.buffer, queryResult.memory, 0));
// Create query pool
VkQueryPoolCreateInfo queryPoolInfo = {};
queryPoolInfo.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO;
// Query pool will be created for occlusion queries
queryPoolInfo.queryType = VK_QUERY_TYPE_OCCLUSION;
queryPoolInfo.queryCount = 2;
VK_CHECK_RESULT(vkCreateQueryPool(device, &queryPoolInfo, NULL, &queryPool));
}
@ -604,7 +574,7 @@ public:
{
VulkanExampleBase::prepare();
loadAssets();
setupQueryResultBuffer();
setupQueryPool();
setupVertexDescriptions();
prepareUniformBuffers();
setupDescriptorSetLayout();