59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
#pragma once
|
|
|
|
#include "PboReadbackRing.h"
|
|
#include "VideoIOFormat.h"
|
|
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
#include <functional>
|
|
|
|
struct SystemFrame;
|
|
|
|
class Bgra8ReadbackPipeline
|
|
{
|
|
public:
|
|
using RenderCallback = std::function<void(uint64_t frameIndex)>;
|
|
using AcquireFrameCallback = std::function<bool(SystemFrame& frame)>;
|
|
using PublishFrameCallback = std::function<bool(const SystemFrame& frame)>;
|
|
using CounterCallback = std::function<void()>;
|
|
|
|
Bgra8ReadbackPipeline() = default;
|
|
Bgra8ReadbackPipeline(const Bgra8ReadbackPipeline&) = delete;
|
|
Bgra8ReadbackPipeline& operator=(const Bgra8ReadbackPipeline&) = delete;
|
|
~Bgra8ReadbackPipeline();
|
|
|
|
bool Initialize(unsigned width, unsigned height, std::size_t pboDepth);
|
|
void Shutdown();
|
|
|
|
bool RenderAndQueue(uint64_t frameIndex, const RenderCallback& renderFrame);
|
|
void ConsumeCompleted(
|
|
const AcquireFrameCallback& acquireFrame,
|
|
const PublishFrameCallback& publishFrame,
|
|
const CounterCallback& onAcquireMiss = {},
|
|
const CounterCallback& onCompleted = {});
|
|
|
|
GLuint Framebuffer() const { return mFramebuffer; }
|
|
unsigned Width() const { return mWidth; }
|
|
unsigned Height() const { return mHeight; }
|
|
unsigned RowBytes() const { return mRowBytes; }
|
|
VideoIOPixelFormat PixelFormat() const { return VideoIOPixelFormat::Bgra8; }
|
|
uint64_t PboQueueMisses() const { return mPboRing.QueueMisses(); }
|
|
double LastRenderFrameMilliseconds() const { return mLastRenderFrameMilliseconds; }
|
|
double LastReadbackQueueMilliseconds() const { return mLastReadbackQueueMilliseconds; }
|
|
double LastCompletedReadbackCopyMilliseconds() const { return mLastCompletedReadbackCopyMilliseconds; }
|
|
|
|
private:
|
|
bool CreateRenderTarget();
|
|
void DestroyRenderTarget();
|
|
|
|
unsigned mWidth = 0;
|
|
unsigned mHeight = 0;
|
|
unsigned mRowBytes = 0;
|
|
GLuint mFramebuffer = 0;
|
|
GLuint mTexture = 0;
|
|
double mLastRenderFrameMilliseconds = 0.0;
|
|
double mLastReadbackQueueMilliseconds = 0.0;
|
|
double mLastCompletedReadbackCopyMilliseconds = 0.0;
|
|
PboReadbackRing mPboRing;
|
|
};
|