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#pragma once
#include "slang-gfx.h"
#include "tools/platform/window.h"
#include "source/core/slang-basic.h"
#include "source/core/slang-io.h"
#ifdef _WIN32
void _Win32OutputDebugString(const char* str);
#endif
struct WindowedAppBase
{
protected:
static const int kSwapchainImageCount = 2;
Slang::RefPtr<platform::Window> gWindow;
uint32_t windowWidth;
uint32_t windowHeight;
Slang::ComPtr<gfx::IDevice> gDevice;
Slang::ComPtr<gfx::ISwapchain> gSwapchain;
Slang::ComPtr<gfx::IFramebufferLayout> gFramebufferLayout;
Slang::List<Slang::ComPtr<gfx::IFramebuffer>> gFramebuffers;
Slang::List<Slang::ComPtr<gfx::ITransientResourceHeap>> gTransientHeaps;
Slang::ComPtr<gfx::IRenderPassLayout> gRenderPass;
Slang::ComPtr<gfx::ICommandQueue> gQueue;
Slang::Result initializeBase(
const char* title,
int width,
int height,
gfx::DeviceType deviceType = gfx::DeviceType::Default);
void createSwapchainFramebuffers();
void mainLoop();
Slang::ComPtr<gfx::IResourceView> createTextureFromFile(Slang::String fileName, int& textureWidth, int& textureHeight);
virtual void windowSizeChanged();
protected:
virtual void renderFrame(int framebufferIndex) = 0;
public:
platform::Window* getWindow() { return gWindow.Ptr(); }
virtual void finalize() { gQueue->waitOnHost(); }
};
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, args...);
#ifdef _WIN32
char buffer[4096];
sprintf_s(buffer, format, 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());
}
}
void initDebugCallback();
template<typename TApp>
int innerMain()
{
initDebugCallback();
TApp app;
if (SLANG_FAILED(app.initialize()))
{
return -1;
}
platform::Application::run(app.getWindow());
app.finalize();
return 0;
}
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