mirror of
https://github.com/hrydgard/ppsspp.git
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49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
// Copyright (c) 2016- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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// Additionally, Common/Vulkan/* , including this file, are also licensed
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// under the public domain.
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#include "Common/Vulkan/VulkanMemory.h"
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VulkanPushBuffer::VulkanPushBuffer(VulkanContext *vulkan, size_t size) : offset_(0), size_(size), writePtr_(nullptr), deviceMemory_(0) {
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VkDevice device = vulkan->GetDevice();
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VkBufferCreateInfo b = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
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b.size = size;
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b.flags = 0;
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b.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
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b.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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b.queueFamilyIndexCount = 0;
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b.pQueueFamilyIndices = nullptr;
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VkResult res = vkCreateBuffer(device, &b, nullptr, &buffer_);
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assert(VK_SUCCESS == res);
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// Okay, that's the buffer. Now let's allocate some memory for it.
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VkMemoryAllocateInfo alloc = {};
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alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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alloc.pNext = nullptr;
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vulkan->MemoryTypeFromProperties(0xFFFFFFFF, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &alloc.memoryTypeIndex);
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alloc.allocationSize = size;
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res = vkAllocateMemory(device, &alloc, nullptr, &deviceMemory_);
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assert(VK_SUCCESS == res);
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res = vkBindBufferMemory(device, buffer_, deviceMemory_, 0);
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assert(VK_SUCCESS == res);
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}
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