&width,&height,&texChannels,STBI_rgb_alpha);VkDeviceSizeimageSize=width*height*4;if(!pixels){std::cerr<<"failed to load texture image!"<<std::endl;returnfalse;}VkBufferstagingBuffer;VkDeviceMemorystagingBufferMemory;context->createBuffer(imageSize,VK_BUFFER_USAGE...
VkExternalMemoryBufferCreateInfo externalMemCreateInfo { .sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO, .pNext =nullptr, .handleTypes = externalMemoryFlagBits, }; VkBufferUsageFlags bufferUsage { VK_BUFFER_USAGE_TRANSFER_SRC_BIT }; VkBufferCreateInfo bufferInfo { .sType = VK_...
uint32_theight){VkBufferimageBuffer;VkDeviceMemoryimageBufferMemory;VkPhysicalDeviceMemoryPropertiesmemoryProperties;vkGetPhysicalDeviceMemoryProperties(context->getPhysicalDevice(),&memoryProperties);context->createBuffer(width*height*4,VK_BUFFER_USAGE_TRANSFER_DST_BIT,VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,//...
createBuffer(device, physicalDevice, imageSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, stagingBuffer, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, stagingBufferMemory); void* data; vkMapMemory(device, stagingBufferMemory, 0, imageSize, 0, &data); memcpy(data, getRaw...
cmdBeginInfo.flags = VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT; rslt = vkBeginCommandBuffer(m_terrain_command[i], &cmdBeginInfo); vkCmdBindPipeline(m_terrain_command[i], VK_PIPELINE_BIND_POINT_GRAPHICS, m_quad_pipeline); vkCmdBindDescriptorSets(m_terrain_command[i], VK_PIPELINE_BIND...
VkImageUsageFlagBits 用于指定 VkImage 的用途。 1 typedef enum VkImageUsageFlagBits { 2 VK_IMAGE_USAGE_TRANSFER_SRC_BIT = 0x00000001, // 用于数据传输的数据源。 3 VK_IMAGE_USAGE_TRANSFER_DST_BIT = 0x00000002, // 用于数据传输的目的数据。
preferred: VK_MEMORY_PROPERTY_HOST_CACHED_BIT preferred_not: VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT ncnn::VkWeightStagingAllocator 权重+临时缓冲区显存分配器 vkCreateBuffer(): VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT ...
imageCreateCI.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; VkExternalMemoryImageCreateInfoKHR extImageCreateInfo = {};/* * Indicate that the memory backing this image will be exported in an * fd. In some implementations, this may affect the call to ...
您应该像下面的代码一样将图像数据复制到GPU:
VkBufferImageCopy copyRegion{}; // filled out appropriately vkCmdCopyBufferToImage(cmdBuf, stagingBuffer, img, VK_IMAGE_LAYOUT_PREINITIALIZED, 1, ©Region); VkImageMemoryBarrier barrier{}; barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; ...