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//
// Copyright 2019 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// CaptureReplay: Template for replaying a frame capture with ANGLE.
#include "SampleApplication.h"
#include <functional>
#define ANGLE_MACRO_STRINGIZE_AUX(a) #a
#define ANGLE_MACRO_STRINGIZE(a) ANGLE_MACRO_STRINGIZE_AUX(a)
#define ANGLE_MACRO_CONCAT_AUX(a, b) a##b
#define ANGLE_MACRO_CONCAT(a, b) ANGLE_MACRO_CONCAT_AUX(a, b)
// Build the right context header based on replay ID
// This will expand to "angle_capture_context<#>.h"
#include ANGLE_MACRO_STRINGIZE(ANGLE_CAPTURE_REPLAY_SAMPLE_HEADER)
// Assign the context numbered functions based on GN arg selecting replay ID
std::function<void()> SetupContextReplay = reinterpret_cast<void (*)()>(
ANGLE_MACRO_CONCAT(SetupContext,
ANGLE_MACRO_CONCAT(ANGLE_CAPTURE_REPLAY_SAMPLE_CONTEXT_ID, Replay)));
std::function<void(int)> ReplayContextFrame = reinterpret_cast<void (*)(int)>(
ANGLE_MACRO_CONCAT(ReplayContext,
ANGLE_MACRO_CONCAT(ANGLE_CAPTURE_REPLAY_SAMPLE_CONTEXT_ID, Frame)));
class CaptureReplaySample : public SampleApplication
{
public:
CaptureReplaySample(int argc, char **argv)
: SampleApplication("CaptureReplaySample", argc, argv, 3, 0)
{}
bool initialize() override
{
// Set CWD to executable directory.
std::string exeDir = angle::GetExecutableDirectory();
if (!angle::SetCWD(exeDir.c_str()))
return false;
SetBinaryDataDir(ANGLE_CAPTURE_REPLAY_SAMPLE_DATA_DIR);
SetupContextReplay();
eglSwapInterval(getDisplay(), 1);
return true;
}
void destroy() override {}
void draw() override
{
// Compute the current frame, looping from kReplayFrameStart to kReplayFrameEnd.
uint32_t frame =
kReplayFrameStart + (mCurrentFrame % (kReplayFrameEnd - kReplayFrameStart));
ReplayContextFrame(frame);
mCurrentFrame++;
}
private:
uint32_t mCurrentFrame = 0;
};
int main(int argc, char **argv)
{
CaptureReplaySample app(argc, argv);
return app.run();
}