34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
#include <Resources/Texture.hpp>
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#include <Memory/Buffer.hpp>
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#include <Memory/Memory.hpp>
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#include <Renderer/CommandBuffer.hpp>
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#include <util/file.hpp>
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#define STB_IMAGE_IMPLEMENTATION
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#include <stb_image.h>
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Texture::Texture(vk::PhysicalDevice phys_dev, vk::Device dev, CommandBuffer command_buffer, const std::string& fname) {
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int n_channels;
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vk::Extent3D extent;
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auto image_data = stbi_load(fname.c_str(), reinterpret_cast<int*>(&extent.width), reinterpret_cast<int*>(&extent.height), &n_channels, STBI_rgb_alpha);
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extent.depth = 1;
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image = std::make_unique<Image>(phys_dev, dev, extent, vk::Format::eR8G8B8A8Srgb,
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vk::ImageTiling::eOptimal, vk::ImageUsageFlagBits::eSampled,
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vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
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vk::DeviceSize sz = extent.width * extent.height * sizeof(uint32_t);
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/* staging buffer to hold image data from the CPU */
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Buffer staging(phys_dev, dev, sz, vk::BufferUsageFlagBits::eTransferSrc,
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vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
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staging.map(image_data);
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stbi_image_free(image_data);
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command_buffer.copy(staging, *image);
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} |