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#pragma once
#include "core/slang-basic.h"
#include "core/slang-io.h"
#include "platform/window.h"
#include "slang-rhi.h"
#include "test-base.h"
#ifdef _WIN32
void _Win32OutputDebugString(const char* str);
#endif
#define SLANG_STRINGIFY(x) #x
#define SLANG_EXPAND_STRINGIFY(x) SLANG_STRINGIFY(x)
#ifdef _WIN32
#define EXAMPLE_MAIN(innerMain) \
extern const char* const g_logFileName = \
"log-" SLANG_EXPAND_STRINGIFY(SLANG_EXAMPLE_NAME) ".txt"; \
PLATFORM_UI_MAIN(innerMain);
#else
#define EXAMPLE_MAIN(innerMain) PLATFORM_UI_MAIN(innerMain)
#endif // _WIN32
static const float kIdentity[] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1};
struct WindowedAppBase : public TestBase
{
protected:
static const int kSwapchainImageCount = 2;
Slang::RefPtr<platform::Window> gWindow;
uint32_t windowWidth;
uint32_t windowHeight;
Slang::ComPtr<rhi::IDevice> gDevice;
Slang::ComPtr<rhi::ICommandQueue> gQueue;
Slang::ComPtr<rhi::ISurface> gSurface;
Slang::List<Slang::ComPtr<rhi::ITexture>> gOfflineTextures;
Slang::Result initializeBase(
const char* title,
int width,
int height,
rhi::DeviceType deviceType = rhi::DeviceType::Default);
void mainLoop();
Slang::ComPtr<rhi::ITextureView> createTextureFromFile(
Slang::String fileName,
int& textureWidth,
int& textureHeight);
void createOfflineTextures();
virtual void windowSizeChanged();
protected:
virtual void renderFrame(rhi::ITexture* texture) = 0;
public:
platform::Window* getWindow() { return gWindow.Ptr(); }
virtual void finalize() { gQueue->waitOnHost(); }
void offlineRender();
};
struct ExampleResources
{
Slang::String baseDir;
ExampleResources(const Slang::String& dir)
: baseDir(dir)
{
}
Slang::String resolveResource(const char* fileName) const
{
static const Slang::List<Slang::String> directories{
"examples",
"../examples",
"../../examples",
};
for (const Slang::String& dir : directories)
{
Slang::StringBuilder pathSb;
pathSb << dir << "/" << baseDir << "/" << fileName;
if (Slang::File::exists(pathSb.getBuffer()))
return pathSb.toString();
}
return fileName;
}
};
int64_t getCurrentTime();
int64_t getTimerFrequency();
template<typename... TArgs>
inline void reportError(const char* format, TArgs... args)
{
printf(format, std::forward<TArgs>(args)...);
#ifdef _WIN32
char buffer[4096];
sprintf_s(buffer, format, std::forward<TArgs>(args)...);
_Win32OutputDebugString(buffer);
#endif
}
template<typename... TArgs>
inline void log(const char* format, TArgs... args)
{
reportError(format, args...);
}
// Many Slang API functions return detailed diagnostic information
// (error messages, warnings, etc.) as a "blob" of data, or return
// a null blob pointer instead if there were no issues.
//
// For convenience, we define a subroutine that will dump the information
// in a diagnostic blob if one is produced, and skip it otherwise.
//
inline void diagnoseIfNeeded(slang::IBlob* diagnosticsBlob)
{
if (diagnosticsBlob != nullptr)
{
reportError("%s", (const char*)diagnosticsBlob->getBufferPointer());
}
}
template<typename TApp>
int innerMain(int argc, char** argv)
{
TApp app;
app.parseOption(argc, argv);
if (app.shouldShowHelp())
{
app.printUsage(argc > 0 ? argv[0] : "example");
return 0;
}
if (SLANG_FAILED(app.initialize()))
{
return -1;
}
if (!app.isTestMode())
{
platform::Application::run(app.getWindow());
}
else
{
app.offlineRender();
}
app.finalize();
return 0;
}
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