fixes

include/opengl/data_uploaders/texture_data_uploader.hpp

@@ -0,0 +1,84 @@
+#pragma once
+
+#include "../../assets/dynamic_read_buffers"
+#include "assets/dynamic_data_stores/dynamic_texture_store.hpp"
+#include "opengl/data/texture_data.hpp"
+#include <vector>
+
+namespace zgl
+{
+class texture_data_uploader
+{
+
+	void upload(
+		std::span<const dynamic_texture_data> dynamic_data,
+		std::span<const dynamic_texture_store::id_type> dynamic_data_ids
+	) {
+
+		std::vector<GLuint> texture_ids;
+		std::vector<GLuint> invalid_texture_ids;
+
+		texture_ids.resize(dynamic_data.size());
+
+		glGenTextures(texture_ids.size(), texture_ids.data());
+
+		auto texture_id_it = texture_ids.begin();
+
+		for (std::size_t i{}; i != dynamic_data.size(); ++i)
+		{
+			const auto& texture_id = *texture_id_it;
+			const auto& texture = dynamic_data[i];
+
+			glBindTexture(GL_TEXTURE_2D, texture_id);
+
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+			GLenum format;
+			switch (texture.components()) {
+				using enum components::texture::flags;
+			case luminance:
+				format = GL_LUMINANCE;
+				break;
+			case luminance | alpha:
+				format = GL_LUMINANCE_ALPHA;
+				break;
+			case red | green | blue:
+				format = GL_RGB;
+				break;
+			case red | green | blue | alpha:
+				format = GL_RGBA;
+				break;
+			default:
+				format = GL_INVALID_ENUM;
+				break;
+			}
+
+			if (format == GL_INVALID_ENUM)
+			{
+				invalid_texture_ids.push_back(texture_id);
+			}
+			else
+			{
+				glTexImage2D(
+					GL_TEXTURE_2D, 0,
+					GL_RGBA8,
+					texture.width(),
+					texture.height(),
+					0,
+					format,
+					GL_UNSIGNED_BYTE,
+					texture.data()
+				);
+				glGenerateMipmap(GL_TEXTURE_2D);
+			}
+		}
+
+		glBindTexture(GL_TEXTURE_2D, 0);
+
+		glDeleteTextures(invalid_texture_ids.size(), invalid_texture_ids.data());
+	}
+};
+}