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adding texture atlas class

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Kbz-8
2023-04-07 17:27:23 +02:00
parent f6c6b5e018
commit 5f16a98d08
9 changed files with 5230 additions and 22643 deletions
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75
src/renderer/images/texture_atlas.cpp git.filemode.normal_file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* texture_atlas.cpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maldavid <kbz_8.dev@akel-engine.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/04/07 16:40:09 by maldavid #+# #+# */
/* Updated: 2023/04/07 17:07:46 by maldavid ### ########.fr */
/* */
/* ************************************************************************** */
#include <renderer/images/texture_atlas.h>
namespace mlx
{
void TextureAtlas::create(uint8_t* pixels, uint32_t width, uint32_t height, VkFormat format, uint32_t render_width, uint32_t rendre_height)
{
Image::create(width, height, format,
VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
);
Image::createImageView(VK_IMAGE_VIEW_TYPE_2D, VK_IMAGE_ASPECT_COLOR_BIT);
Image::createSampler();
std::vector<Vertex> vertexData = {
{{0, 0}, {1.f, 1.f, 1.f, 1.f}, {0.0f, 0.0f}},
{{render_width, 0}, {1.f, 1.f, 1.f, 1.f}, {1.0f, 0.0f}},
{{render_width, render_height}, {1.f, 1.f, 1.f, 1.f}, {1.0f, 1.0f}},
{{0, render_height}, {1.f, 1.f, 1.f, 1.f}, {0.0f, 1.0f}}
};
std::vector<uint16_t> indexData = { 0, 1, 2, 2, 3, 0 };
_vbo.create(sizeof(Vertex) * vertexData.size(), vertexData.data());
_ibo.create(sizeof(uint16_t) * indexData.size(), indexData.data());
if(pixels != nullptr)
{
Buffer staging_buffer;
std::size_t size = width * height * (format == VK_FORMAT_R32G32B32A32_SFLOAT ? 16 : 4);
staging_buffer.create(Buffer::kind::dynamic, size, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, pixels);
Image::copyFromBuffer(staging_buffer);
staging_buffer.destroy();
}
}
void TextureAtlas::render(Renderer& renderer, int x, int y, std::array<glm::vec2, 4> uv)
{
auto cmd = renderer.getActiveCmdBuffer().get();
std::vector<Vertex> vertexData = {
{{0, 0}, {1.f, 1.f, 1.f, 1.f}, uv[0]},
{{render_width, 0}, {1.f, 1.f, 1.f, 1.f}, uv[1]},
{{render_width, render_height}, {1.f, 1.f, 1.f, 1.f}, uv[2]},
{{0, render_height}, {1.f, 1.f, 1.f, 1.f}, uv[3]}
};
_vbo.setData(sizeof(Vertex) * vertexData.size(), vertexData.data());
_vbo.bind(renderer);
_ibo.bind(renderer);
glm::vec2 translate(x, y);
vkCmdPushConstants(cmd, renderer.getPipeline().getPipelineLayout(), VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(translate), &translate);
vkCmdDrawIndexed(cmd, static_cast<uint32_t>(_ibo.getSize() / sizeof(uint16_t)), 1, 0, 0, 0);
}
void TextureAtlas::destroy() noexcept
{
Image::destroy();
_vbo.destroy();
_ibo.destroy();
}
}