Import aap/librw @ masterHEADmaster

Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/aap/librw (master).

1 files changed, 354 insertions, 0 deletions

diff --git a/tools/subrast/main.cpp b/tools/subrast/main.cpp
new file mode 100644
index 0000000..5dbde8a
--- /dev/null
+++ b/tools/subrast/main.cpp
@@ -0,0 +1,354 @@
+#include <rw.h>
+#include <skeleton.h>
+#include <assert.h>
+
+#include "subrast.h"
+
+rw::V3d zero = { 0.0f, 0.0f, 0.0f };
+rw::EngineOpenParams engineOpenParams;
+float FOV = 70.0f;
+
+rw::RGBA ForegroundColor = { 200, 200, 200, 255 };
+rw::RGBA BackgroundColor = { 64, 64, 64, 0 };
+rw::RGBA BorderColor = { 128, 128, 128, 0 };
+
+rw::Clump *Clump = nil;
+rw::Light *MainLight = nil;
+rw::Light *AmbientLight = nil;
+
+rw::World *World;
+rw::Charset *Charset;
+
+const char *SubCameraCaption[4] = {
+	"Perspective view",
+	"Parallel view: Z-axis",
+	"Parallel view: X-axis",
+	"Parallel view: Y-axis"
+};
+
+rw::V3d Xaxis = { 1.0f, 0.0, 0.0f };
+rw::V3d Yaxis = { 0.0f, 1.0, 0.0f };
+rw::V3d Zaxis = { 0.0f, 0.0, 1.0f };
+
+rw::World*
+CreateWorld(void)
+{
+	rw::BBox bb;
+
+	bb.inf.x = bb.inf.y = bb.inf.z = -100.0f;
+	bb.sup.x = bb.sup.y = bb.sup.z = 100.0f;
+
+	return rw::World::create(&bb);
+}
+
+rw::Light*
+CreateAmbientLight(rw::World *world)
+{
+	rw::Light *light = rw::Light::create(rw::Light::AMBIENT);
+	assert(light);
+	World->addLight(light);
+	return light;
+}
+
+rw::Light*
+CreateMainLight(rw::World *world)
+{
+	rw::Light *light = rw::Light::create(rw::Light::DIRECTIONAL);
+	assert(light);
+	rw::Frame *frame = rw::Frame::create();
+	assert(frame);
+	frame->rotate(&Xaxis, 30.0f, rw::COMBINEREPLACE);
+	frame->rotate(&Yaxis, 30.0f, rw::COMBINEPOSTCONCAT);
+	light->setFrame(frame);
+	World->addLight(light);
+	return light;
+}
+
+rw::Clump*
+CreateClump(rw::World *world)
+{
+	rw::Clump *clump;
+	rw::StreamFile in;
+
+	rw::Image::setSearchPath("files/textures/");
+	const char *filename = "files/clump.dff";
+	if(in.open(filename, "rb") == NULL){
+		printf("couldn't open file\n");
+		return nil;
+	}
+	if(!rw::findChunk(&in, rw::ID_CLUMP, NULL, NULL))
+		return nil;
+	clump = rw::Clump::streamRead(&in);
+	in.close();
+	if(clump == nil)
+		return nil;
+
+	rw::Frame *frame = clump->getFrame();
+	frame->rotate(&Xaxis, -120.0f, rw::COMBINEREPLACE);
+	frame->rotate(&Yaxis, 45.0f, rw::COMBINEPOSTCONCAT);
+	World->addClump(clump);
+	return clump;
+}
+
+void
+RotateClump(float xAngle, float yAngle)
+{
+	rw::Matrix *cameraMatrix = &Camera->getFrame()->matrix;
+	rw::Frame *frame = Clump->getFrame();
+	rw::V3d pos = frame->matrix.pos;
+
+	pos = rw::scale(pos, -1.0f);
+	frame->translate(&pos, rw::COMBINEPOSTCONCAT);
+
+	frame->rotate(&cameraMatrix->up, xAngle, rw::COMBINEPOSTCONCAT);
+	frame->rotate(&cameraMatrix->right, yAngle, rw::COMBINEPOSTCONCAT);
+
+	pos = rw::scale(pos, -1.0f);
+	frame->translate(&pos, rw::COMBINEPOSTCONCAT);
+}
+
+void
+Initialize(void)
+{
+	sk::globals.windowtitle = "Sub-raster example";
+	sk::globals.width = 1280;
+	sk::globals.height = 800;
+	sk::globals.quit = 0;
+}
+
+bool
+Initialize3D(void)
+{
+	if(!sk::InitRW())
+		return false;
+
+	Charset = rw::Charset::create(&ForegroundColor, &BackgroundColor);
+
+	World = CreateWorld();
+
+	AmbientLight = CreateAmbientLight(World);
+	MainLight = CreateMainLight(World);
+	Clump = CreateClump(World);
+	if (Clump == nil)
+		return false;
+
+	CreateCameras(World);
+	UpdateSubRasters(Camera, sk::globals.width, sk::globals.height);
+
+	rw::SetRenderState(rw::CULLMODE, rw::CULLBACK);
+	rw::SetRenderState(rw::ZTESTENABLE, 1);
+	rw::SetRenderState(rw::ZWRITEENABLE, 1);
+
+	ImGui_ImplRW_Init();
+	ImGui::StyleColorsClassic();
+
+	return true;
+}
+
+void
+Terminate3D(void)
+{
+	DestroyCameras(World);
+
+	if(AmbientLight){
+		World->removeLight(AmbientLight);
+		AmbientLight->destroy();
+		AmbientLight = nil;
+	}
+
+	if(MainLight){
+		World->removeLight(MainLight);
+		rw::Frame *frame = MainLight->getFrame();
+		MainLight->setFrame(nil);
+		frame->destroy();
+		MainLight->destroy();
+		MainLight = nil;
+	}
+
+	if(Clump){
+		World->removeClump(Clump);
+		Clump->destroy();
+		Clump = nil;
+	}
+
+	if(World){
+		World->destroy();
+		World = nil;
+	}
+
+	if(Charset){
+		Charset->destroy();
+		Charset = nil;
+	}
+
+	sk::TerminateRW();
+}
+
+bool
+attachPlugins(void)
+{
+	rw::ps2::registerPDSPlugin(40);
+	rw::ps2::registerPluginPDSPipes();
+
+	rw::registerMeshPlugin();
+	rw::registerNativeDataPlugin();
+	rw::registerAtomicRightsPlugin();
+	rw::registerMaterialRightsPlugin();
+	rw::xbox::registerVertexFormatPlugin();
+	rw::registerSkinPlugin();
+	rw::registerUserDataPlugin();
+	rw::registerHAnimPlugin();
+	rw::registerMatFXPlugin();
+	rw::registerUVAnimPlugin();
+	rw::ps2::registerADCPlugin();
+	return true;
+}
+
+void
+DisplayOnScreenInfo(void)
+{
+	for(int i = 0; i < 4; i++){
+		rw::Raster *scr = SubCameras[i]->frameBuffer;
+
+		rw::int32 scrw = scr->width;
+		rw::int32 scrh = scr->height;
+
+		rw::int32 captionWidth = strlen(SubCameraCaption[i])*Charset->desc.width;
+
+		if(captionWidth < scrw && scrh > Charset->desc.height*2){
+			rw::int32 x = scr->offsetX + (scrw - captionWidth)/2;
+			rw::int32 y = scr->offsetY + Charset->desc.height;
+			Charset->print(SubCameraCaption[i], x, y, 0);
+		}
+	}
+}
+
+rw::RGBA BackgroundColors[] = {
+	{ 64, 64, 64, 0 },
+	{ 128, 0, 0, 0 },
+	{ 0, 128, 0, 0 },
+	{ 0, 0, 128, 0 },
+};
+void
+Render(float timeDelta)
+{
+	Camera->clear(&BorderColor, rw::Camera::CLEARIMAGE|rw::Camera::CLEARZ);
+
+	for(int i = 0; i < 4; i++){
+		SubCameras[i]->clear(&BackgroundColor, rw::Camera::CLEARIMAGE|rw::Camera::CLEARZ);
+//		SubCameras[i]->clear(&BackgroundColors[i], rw::Camera::CLEARIMAGE|rw::Camera::CLEARZ);
+		SubCameras[i]->beginUpdate();
+		World->render();
+		SubCameras[i]->endUpdate();
+	}
+
+	Camera->beginUpdate();
+	DisplayOnScreenInfo();
+	Camera->endUpdate();
+
+	Camera->showRaster(0);
+}
+
+void
+Idle(float timeDelta)
+{
+	Render(timeDelta);
+}
+
+int MouseX, MouseY;
+int MouseDeltaX, MouseDeltaY;
+int MouseButtons;
+
+bool Rotating;
+
+void
+KeyUp(int key)
+{
+}
+
+void
+KeyDown(int key)
+{
+	switch(key){
+	case sk::KEY_ESC:
+		sk::globals.quit = 1;
+		break;
+	}
+}
+
+void
+MouseBtn(sk::MouseState *mouse)
+{
+	MouseButtons = mouse->buttons;
+	Rotating = !!(MouseButtons&1);
+}
+
+void
+MouseMove(sk::MouseState *mouse)
+{
+	MouseDeltaX = mouse->posx - MouseX;
+	MouseDeltaY = mouse->posy - MouseY;
+	MouseX = mouse->posx;
+	MouseY = mouse->posy;
+	if(Rotating)
+		RotateClump(-MouseDeltaX, MouseDeltaY);
+}
+
+sk::EventStatus
+AppEventHandler(sk::Event e, void *param)
+{
+	using namespace sk;
+	Rect *r;
+	MouseState *ms;
+
+	ImGuiEventHandler(e, param);
+	ImGuiIO &io = ImGui::GetIO();
+
+	switch(e){
+	case INITIALIZE:
+		Initialize();
+		return EVENTPROCESSED;
+	case RWINITIALIZE:
+		return Initialize3D() ? EVENTPROCESSED : EVENTERROR;
+	case RWTERMINATE:
+		Terminate3D();
+		return EVENTPROCESSED;
+	case PLUGINATTACH:
+		return attachPlugins() ? EVENTPROCESSED : EVENTERROR;
+	case KEYDOWN:
+		KeyDown(*(int*)param);
+		return EVENTPROCESSED;
+	case KEYUP:
+		KeyUp(*(int*)param);
+		return EVENTPROCESSED;
+	case MOUSEBTN:
+		if(!io.WantCaptureMouse){
+			ms = (MouseState*)param;
+			MouseBtn(ms);
+		}else
+			MouseButtons = 0;
+		return EVENTPROCESSED;
+	case MOUSEMOVE:
+		MouseMove((MouseState*)param);
+		return EVENTPROCESSED;
+	case RESIZE:
+		r = (Rect*)param;
+		// TODO: register when we're minimized
+		if(r->w == 0) r->w = 1;
+		if(r->h == 0) r->h = 1;
+
+		sk::globals.width = r->w;
+		sk::globals.height = r->h;
+		if(::Camera){
+			sk::CameraSize(::Camera, r);
+			::Camera->setFOV(FOV, (float)sk::globals.width/sk::globals.height);
+
+			UpdateSubRasters(::Camera, r->w, r->h);
+		}
+		break;
+	case IDLE:
+		Idle(*(float*)param);
+		return EVENTPROCESSED;
+	}
+	return sk::EVENTNOTPROCESSED;
+}