#include "OpenGLGraphicsContext.h"
#include "Common/System/Display.h"
#include "Common/GPU/OpenGL/GLFeatures.h"
#include "Common/Log.h"
#include "Core/ConfigValues.h"
#include "Core/System.h"
#include "Core/Config.h"

OpenGLGraphicsContext::OpenGLGraphicsContext() {
	SetGPUBackend(GPUBackend::OPENGL);

	// OpenGL handles rotated rendering in the driver.
	g_display.rotation = DisplayRotation::ROTATE_0;
	g_display.rot_matrix.setIdentity();
}

bool OpenGLGraphicsContext::InitSurface(WindowSystem winsys, void *data1, void *data2, std::string *errorMessage) {
	INFO_LOG(Log::G3D, "OpenGLGraphicsContext::InitSurface");
	if (!CheckGLExtensions()) {
		*errorMessage = "CheckExtensions failed";
		ERROR_LOG(Log::G3D, "CheckGLExtensions failed - not gonna attempt starting up.");
		return false;
	}
	draw_ = Draw::T3DCreateGLContext(false);  // Can't fail
	renderManager_ = (GLRenderManager *)draw_->GetNativeObject(Draw::NativeObject::RENDER_MANAGER);
	renderManager_->SetInflightFrames(g_Config.iInflightFrames);

	if (!draw_->CreatePresets()) {
		// This can't really happen now that compilation is async - they're only really queued for compile here.
		_assert_msg_(false, "Failed to compile preset shaders");
		return false;
	}
	return true;
}

void OpenGLGraphicsContext::ShutdownSurface() {
	INFO_LOG(Log::G3D, "OpenGLGraphicsContext::Shutdown");
	renderManager_ = nullptr;  // owned by draw_.
	delete draw_;
	draw_ = nullptr;
}