mirror of
https://github.com/seekrs/MacroLibX.git
synced 2026-01-11 22:53:34 +00:00
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* texture_atlas.cpp :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: maldavid <kbz_8.dev@akel-engine.com> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/04/07 16:40:09 by maldavid #+# #+# */
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/* Updated: 2023/04/08 00:29:39 by maldavid ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include <renderer/images/texture_atlas.h>
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namespace mlx
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{
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void TextureAtlas::create(uint8_t* pixels, uint32_t width, uint32_t height, VkFormat format)
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{
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Image::create(width, height, format,
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VK_IMAGE_TILING_OPTIMAL,
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VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT,
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VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
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);
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Image::createImageView(VK_IMAGE_VIEW_TYPE_2D, VK_IMAGE_ASPECT_COLOR_BIT);
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Image::createSampler();
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_color = 0xFFFFFFFF;
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float red = (_color & 0x00FF0000) / 255;
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float green = (_color & 0x0000FF00) / 255;
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float blue = (_color & 0x000000FF) / 255;
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std::vector<Vertex> vertexData = {
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{{0, 0}, {red, green, blue, 1.f}, {0.0f, 0.0f}},
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{{20, 0}, {red, green, blue, 1.f}, {1.0f, 0.0f}},
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{{20, 20}, {red, green, blue, 1.f}, {1.0f, 1.0f}},
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{{0, 20}, {red, green, blue, 1.f}, {0.0f, 1.0f}}
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};
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std::vector<uint16_t> indexData = { 0, 1, 2, 2, 3, 0 };
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_vbo.create(sizeof(Vertex) * vertexData.size());
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_vbo.setData(sizeof(Vertex) * vertexData.size(), vertexData.data());
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_ibo.create(sizeof(uint16_t) * indexData.size(), indexData.data());
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if(pixels != nullptr)
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{
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Buffer staging_buffer;
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std::size_t size = width * height * (format == VK_FORMAT_R32G32B32A32_SFLOAT ? 16 : 4);
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staging_buffer.create(Buffer::kind::dynamic, size, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, pixels);
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Image::copyFromBuffer(staging_buffer);
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staging_buffer.destroy();
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}
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}
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void TextureAtlas::render(Renderer& renderer, int x, int y, std::array<glm::vec2, 4> pos, std::array<glm::vec2, 4> uv)
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{
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auto cmd = renderer.getActiveCmdBuffer().get();
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float red = (_color & 0x00FF0000) / 255;
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float green = (_color & 0x0000FF00) / 255;
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float blue = (_color & 0x000000FF) / 255;
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std::vector<Vertex> vertexData = {
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{pos[0], {red, green, blue, 1.f}, uv[0]},
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{pos[1], {red, green, blue, 1.f}, uv[1]},
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{pos[2], {red, green, blue, 1.f}, uv[2]},
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{pos[3], {red, green, blue, 1.f}, uv[3]}
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};
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_vbo.setData(sizeof(Vertex) * vertexData.size(), vertexData.data());
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_vbo.bind(renderer);
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_ibo.bind(renderer);
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glm::vec2 translate(x, y);
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vkCmdPushConstants(cmd, renderer.getPipeline().getPipelineLayout(), VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(translate), &translate);
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vkCmdDrawIndexed(cmd, static_cast<uint32_t>(_ibo.getSize() / sizeof(uint16_t)), 1, 0, 0, 0);
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}
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void TextureAtlas::destroy() noexcept
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{
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Image::destroy();
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_vbo.destroy();
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_ibo.destroy();
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}
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}
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