ObsidianDragon - DragonX ImGui Wallet
Full-node GUI wallet for DragonX cryptocurrency. Built with Dear ImGui, SDL3, and OpenGL3/DX11. Features: - Send/receive shielded and transparent transactions - Autoshield with merged transaction display - Built-in CPU mining (xmrig) - Peer management and network monitoring - Wallet encryption with PIN lock - QR code generation for receive addresses - Transaction history with pagination - Console for direct RPC commands - Cross-platform (Linux, Windows)
This commit is contained in:
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src/ui/effects/framebuffer.cpp
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302
src/ui/effects/framebuffer.cpp
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// DragonX Wallet - ImGui Edition
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// Copyright 2024-2026 The Hush Developers
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// Released under the GPLv3
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#include "framebuffer.h"
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#ifdef DRAGONX_HAS_GLAD
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#include <glad/gl.h>
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#include <cstdio>
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#include "../../util/logger.h"
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// GL 3.0 constants — may be missing from some GLAD configurations
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#ifndef GL_RGBA16F
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#define GL_RGBA16F 0x881A
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#endif
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#ifndef GL_HALF_FLOAT
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#define GL_HALF_FLOAT 0x140B
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#endif
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namespace dragonx {
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namespace ui {
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namespace effects {
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// ============================================================================
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// Framebuffer Implementation (GLEW Available)
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// ============================================================================
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Framebuffer::Framebuffer() = default;
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Framebuffer::~Framebuffer()
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{
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destroy();
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}
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Framebuffer::Framebuffer(Framebuffer&& other) noexcept
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: fbo_(other.fbo_)
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, colorTexture_(other.colorTexture_)
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, depthRbo_(other.depthRbo_)
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, width_(other.width_)
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, height_(other.height_)
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, isComplete_(other.isComplete_)
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{
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other.fbo_ = 0;
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other.colorTexture_ = 0;
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other.depthRbo_ = 0;
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other.width_ = 0;
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other.height_ = 0;
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other.isComplete_ = false;
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}
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Framebuffer& Framebuffer::operator=(Framebuffer&& other) noexcept
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{
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if (this != &other) {
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destroy();
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fbo_ = other.fbo_;
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colorTexture_ = other.colorTexture_;
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depthRbo_ = other.depthRbo_;
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width_ = other.width_;
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height_ = other.height_;
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isComplete_ = other.isComplete_;
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other.fbo_ = 0;
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other.colorTexture_ = 0;
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other.depthRbo_ = 0;
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other.width_ = 0;
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other.height_ = 0;
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other.isComplete_ = false;
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}
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return *this;
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}
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bool Framebuffer::init(int width, int height, bool useFloat16)
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{
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if (width <= 0 || height <= 0) {
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DEBUG_LOGF("Framebuffer::init - Invalid dimensions: %dx%d\n", width, height);
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return false;
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}
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// Clean up existing resources
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cleanup();
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width_ = width;
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height_ = height;
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useFloat16_ = useFloat16;
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// Generate framebuffer
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glGenFramebuffers(1, &fbo_);
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glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
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// Create color texture — use RGBA16F for blur intermediates to avoid banding
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glGenTextures(1, &colorTexture_);
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glBindTexture(GL_TEXTURE_2D, colorTexture_);
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if (useFloat16) {
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_HALF_FLOAT, nullptr);
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} else {
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
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}
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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// Attach color texture to framebuffer
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorTexture_, 0);
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// Create depth renderbuffer (optional, but good for completeness)
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glGenRenderbuffers(1, &depthRbo_);
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glBindRenderbuffer(GL_RENDERBUFFER, depthRbo_);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, width, height);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, depthRbo_);
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// Check completeness
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isComplete_ = checkComplete();
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// Unbind
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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glBindTexture(GL_TEXTURE_2D, 0);
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glBindRenderbuffer(GL_RENDERBUFFER, 0);
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if (!isComplete_) {
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DEBUG_LOGF("Framebuffer::init - Framebuffer is not complete!\n");
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cleanup();
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return false;
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}
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return true;
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}
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bool Framebuffer::resize(int width, int height)
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{
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if (width == width_ && height == height_) {
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return true; // No change needed
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}
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return init(width, height, useFloat16_);
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}
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void Framebuffer::destroy()
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{
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cleanup();
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}
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void Framebuffer::cleanup()
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{
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if (colorTexture_) {
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glDeleteTextures(1, &colorTexture_);
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colorTexture_ = 0;
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}
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if (depthRbo_) {
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glDeleteRenderbuffers(1, &depthRbo_);
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depthRbo_ = 0;
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}
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if (fbo_) {
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glDeleteFramebuffers(1, &fbo_);
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fbo_ = 0;
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}
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width_ = 0;
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height_ = 0;
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isComplete_ = false;
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}
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bool Framebuffer::checkComplete()
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{
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GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if (status != GL_FRAMEBUFFER_COMPLETE) {
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const char* errorStr = "Unknown";
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switch (status) {
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case GL_FRAMEBUFFER_UNDEFINED: errorStr = "UNDEFINED"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: errorStr = "INCOMPLETE_ATTACHMENT"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: errorStr = "INCOMPLETE_MISSING_ATTACHMENT"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: errorStr = "INCOMPLETE_DRAW_BUFFER"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: errorStr = "INCOMPLETE_READ_BUFFER"; break;
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case GL_FRAMEBUFFER_UNSUPPORTED: errorStr = "UNSUPPORTED"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: errorStr = "INCOMPLETE_MULTISAMPLE"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS: errorStr = "INCOMPLETE_LAYER_TARGETS"; break;
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}
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DEBUG_LOGF("Framebuffer error: %s (0x%X)\n", errorStr, status);
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return false;
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}
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return true;
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}
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void Framebuffer::bind()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
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glViewport(0, 0, width_, height_);
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}
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void Framebuffer::unbind()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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void Framebuffer::clear(float r, float g, float b, float a)
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{
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glClearColor(r, g, b, a);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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}
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void Framebuffer::blitFrom(GLuint srcFbo, int srcX, int srcY, int srcWidth, int srcHeight,
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int dstX, int dstY)
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{
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glBindFramebuffer(GL_READ_FRAMEBUFFER, srcFbo);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_);
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glBlitFramebuffer(
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srcX, srcY, srcX + srcWidth, srcY + srcHeight, // Source rect
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dstX, dstY, dstX + srcWidth, dstY + srcHeight, // Dest rect
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GL_COLOR_BUFFER_BIT,
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GL_LINEAR
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);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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void Framebuffer::captureScreen(int viewportWidth, int viewportHeight)
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{
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// Blit from default framebuffer (0) to this framebuffer
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glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_);
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glBlitFramebuffer(
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0, 0, viewportWidth, viewportHeight, // Source (screen)
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0, 0, width_, height_, // Dest (this FBO)
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GL_COLOR_BUFFER_BIT,
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GL_LINEAR
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);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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// ============================================================================
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// FramebufferPingPong Implementation
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// ============================================================================
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bool FramebufferPingPong::init(int width, int height, bool useFloat16)
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{
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if (!buffers_[0].init(width, height, useFloat16)) return false;
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if (!buffers_[1].init(width, height, useFloat16)) return false;
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currentSource_ = 0;
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return true;
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}
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bool FramebufferPingPong::resize(int width, int height)
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{
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if (!buffers_[0].resize(width, height)) return false;
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if (!buffers_[1].resize(width, height)) return false;
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return true;
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}
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void FramebufferPingPong::destroy()
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{
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buffers_[0].destroy();
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buffers_[1].destroy();
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currentSource_ = 0;
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}
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void FramebufferPingPong::swap()
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{
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currentSource_ = 1 - currentSource_;
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}
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} // namespace effects
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} // namespace ui
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} // namespace dragonx
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#else // !DRAGONX_HAS_GLAD
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// ============================================================================
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// Stub Implementation (No GLAD - Acrylic effects disabled)
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// ============================================================================
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namespace dragonx {
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namespace ui {
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namespace effects {
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Framebuffer::Framebuffer() = default;
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Framebuffer::~Framebuffer() = default;
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Framebuffer::Framebuffer(Framebuffer&&) noexcept = default;
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Framebuffer& Framebuffer::operator=(Framebuffer&&) noexcept = default;
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bool Framebuffer::init(int, int, bool) { return false; }
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bool Framebuffer::resize(int, int) { return false; }
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void Framebuffer::destroy() {}
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void Framebuffer::cleanup() {}
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bool Framebuffer::checkComplete() { return false; }
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void Framebuffer::bind() {}
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void Framebuffer::unbind() {}
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void Framebuffer::clear(float, float, float, float) {}
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void Framebuffer::blitFrom(unsigned int, int, int, int, int, int, int) {}
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void Framebuffer::captureScreen(int, int) {}
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bool FramebufferPingPong::init(int, int, bool) { return false; }
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bool FramebufferPingPong::resize(int, int) { return false; }
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void FramebufferPingPong::destroy() {}
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void FramebufferPingPong::swap() {}
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} // namespace effects
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} // namespace ui
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} // namespace dragonx
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#endif // DRAGONX_HAS_GLAD
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