StillHammer
d63d8d83fa
- Add complete BgfxRenderer module structure (24 files) - RHI abstraction layer (no bgfx:: exposed outside BgfxDevice.cpp) - Frame system with lock-free allocator - RenderGraph with ClearPass, SpritePass, DebugPass - SceneCollector for IIO message parsing (render:* topics) - ResourceCache with thread-safe texture/shader caching - Full IModule integration (config via IDataNode, comm via IIO) - CMake with FetchContent for bgfx - Windows build script (build_renderer.bat) - Documentation (README.md, USER_GUIDE.md, PLAN_BGFX_RENDERER.md) - Updated .gitignore for Windows builds 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
#include "FrameAllocator.h"
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namespace grove {
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FrameAllocator::FrameAllocator(size_t size)
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: m_buffer(new uint8_t[size])
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, m_capacity(size)
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, m_offset(0)
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{
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}
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FrameAllocator::~FrameAllocator() {
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delete[] m_buffer;
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}
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void* FrameAllocator::allocate(size_t size, size_t alignment) {
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size_t current = m_offset.load(std::memory_order_relaxed);
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size_t aligned;
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do {
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// Align the current offset
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aligned = (current + alignment - 1) & ~(alignment - 1);
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// Check if we have enough space
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if (aligned + size > m_capacity) {
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return nullptr; // Out of memory
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}
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} while (!m_offset.compare_exchange_weak(
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current, aligned + size,
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std::memory_order_release,
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std::memory_order_relaxed));
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return m_buffer + aligned;
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}
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void FrameAllocator::reset() {
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m_offset.store(0, std::memory_order_release);
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}
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size_t FrameAllocator::getUsed() const {
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return m_offset.load(std::memory_order_acquire);
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}
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} // namespace grove
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