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93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
//------------------------------------------------------------------------------
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// Copyright (c) 2018-2025 Michele Morrone
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// All rights reserved.
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//
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// https://michelemorrone.eu - https://brutpitt.com
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//
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// X: https://x.com/BrutPitt - GitHub: https://github.com/BrutPitt
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//
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// direct mail: brutpitt(at)gmail.com - me(at)michelemorrone.eu
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//
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// This software is distributed under the terms of the BSD 2-Clause license
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//------------------------------------------------------------------------------
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#pragma once
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#include <cfloat>
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#include <cstdlib>
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#include <iostream>
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#include <fstream>
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#include <glad/glad.h>
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#include <imgui/imgui.h>
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#include <imgui/imgui_internal.h>
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#include <imgui/backends/imgui_impl_opengl3.h>
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/////////////////////////////////////////////////////////////////////////////
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// ImGuIZMOquat / vGizmo3D:
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#include <imguizmo_quat.h>
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void renderWidgets(vg::vGizmo3D &track, vec3& vLight, int width, int height);
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class uniformBlocksClass {
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public:
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uniformBlocksClass() { }
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~uniformBlocksClass() { glDeleteBuffers(1, &uBuffer); }
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// get aligment for min size block allocation
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void getAlignment() {
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GLint uBufferMinSize(0);
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glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uBufferMinSize);
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uBlockSize = (GLint(realDataSize)/ uBufferMinSize) * uBufferMinSize;
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if(realDataSize%uBufferMinSize) uBlockSize += uBufferMinSize;
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}
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void create(GLuint size, void *pData, GLuint idx) {
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bindingLocation = idx;
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realDataSize = size;
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ptrData = pData;
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getAlignment();
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glCreateBuffers(1, &uBuffer);
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glNamedBufferStorage(uBuffer, uBlockSize, nullptr, GL_DYNAMIC_STORAGE_BIT);
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if(ptrData) glNamedBufferSubData(uBuffer, 0, realDataSize, ptrData);
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}
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void updateBufferData(void *data=nullptr) {
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glNamedBufferSubData(uBuffer, 0, realDataSize, data ? data : ptrData);
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glBindBufferBase(GL_UNIFORM_BUFFER, bindingLocation, uBuffer);
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}
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private:
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void *ptrData;
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GLuint bindingLocation;
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GLuint uBuffer;
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GLuint realDataSize, uBlockSize;
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};
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struct readShaderFile {
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readShaderFile(const std::string& fileName) {
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std::ifstream input(fileName,std::ifstream::binary);
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// Check to see that the file is open
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if (!input.is_open()) {
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std::cout << "ERROR: " << fileName << std::endl;
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throw std::runtime_error("failed to open file");
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}
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input.seekg(0, std::ios::end);
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const size_t size = input.tellg();
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input.seekg(0, std::ios::beg);
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// Allocate memory:
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str.resize(size, ' ');
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input.read(&str[0], size);
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input.close();
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buffer = str.c_str();
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}
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const char *buffer;
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std::string str;
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}; |