Ports: C-ray rendering engine

Author: https://github.com/vkoskiv
Commit: https://github.com/SerenityOS/serenity/commit/2a21675b01c
Pull-request: https://github.com/SerenityOS/serenity/pull/862

Ports/c-ray/package.sh

@@ -0,0 +1,17 @@
+#!/bin/bash ../.port_include.sh
+port=c-ray
+version=git
+workdir=c-ray-master
+useconfigure=true
+curlopts="-L"
+files="https://github.com/vkoskiv/c-ray/archive/master.tar.gz c-ray-git.tar.gz"
+configopts="-DCMAKE_TOOLCHAIN_FILE=$SERENITY_ROOT/Toolchain/CMakeToolchain.txt -DNO_SDL2=True"
+
+configure() {
+    run cmake $configopts
+}
+
+install() {
+	mkdir -p $SERENITY_ROOT/Root/home/anon/c-ray
+	cp -r c-ray-master/* $SERENITY_ROOT/Root/home/anon/c-ray
+}

Ports/c-ray/patches/add-dummy-configure.patch

@@ -0,0 +1,3 @@
+diff --git a/configure b/configure
+new file mode 100644
+index 0000000..e69de29

Ports/c-ray/patches/disable-checkbuf.patch

@@ -0,0 +1,23 @@
+diff --git a/src/utils/filehandler.c b/src/utils/filehandler.c
+index 99638f3..feded8f 100644
+--- a/src/utils/filehandler.c
++++ b/src/utils/filehandler.c
+@@ -162,7 +162,7 @@ char *loadFile(char *inputFileName, size_t *bytes) {
+ //Wait for 2 secs and abort if nothing is coming in from stdin
+ void checkBuf() {
+ #ifndef WINDOWS
+-	fd_set set;
++	/*fd_set set;
+ 	struct timeval timeout;
+ 	int rv;
+ 	FD_ZERO(&set);
+@@ -176,7 +176,8 @@ void checkBuf() {
+ 		logr(error, "No input found after %i seconds. Hint: Try `./bin/c-ray input/scene.json`.\n", timeout.tv_sec);
+ 	} else {
+ 		return;
+-	}
++	}*/
++	return;
+ #endif
+ }
+ 

Ports/c-ray/patches/enable-own-asprintf.patch

@@ -0,0 +1,19 @@
+diff --git a/src/libraries/asprintf.h b/src/libraries/asprintf.h
+index 70a95ac..0e46c3c 100644
+--- a/src/libraries/asprintf.h
++++ b/src/libraries/asprintf.h
+@@ -33,7 +33,6 @@ int vscprintf(const char *format, va_list ap) {
+  * GNU-C-compatible compilers implement these with the same names, thus we
+  * don't have to do anything
+  */
+-#ifdef _MSC_VER
+ int cray_vasprintf(char **strp, const char *format, va_list ap) {
+ 	int len = vscprintf(format, ap);
+ 	if (len == -1)
+@@ -57,6 +56,5 @@ int asprintf(char **strp, const char *format, ...) {
+ 	va_end(ap);
+ 	return retval;
+ }
+-#endif
+ 
+ #endif // ASPRINTF_H

Ports/c-ray/patches/fix-linkage.patch

@@ -0,0 +1,30 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5ccce96..1db6074 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -58,7 +58,7 @@ if (NOT NO_SDL2)
+ 		if (MSVC)
+   			target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARY})
+ 		else()
+-  			target_link_libraries(${PROJECT_NAME} -lpthread -lm ${SDL2_LIBRARY})
++			target_link_libraries(${PROJECT_NAME} -lSDL2 -lgui -ldraw -lipc -lcore -lpthread -lm -lstdc++)
+ 		endif()
+ 		add_definitions(-DUI_ENABLED)
+ 	else()
+@@ -66,7 +66,7 @@ if (NOT NO_SDL2)
+ 		if (MSVC)
+ 			target_link_libraries(${PROJECT_NAME})
+ 		else()
+-			target_link_libraries(${PROJECT_NAME} -lpthread -lm)
++			target_link_libraries(${PROJECT_NAME} -lgui -ldraw -lipc -lcore -lpthread -lm -lstdc++)
+ 		endif()
+ 	endif()
+ else()
+@@ -75,6 +75,6 @@ else()
+ 	if (MSVC)
+ 		target_link_libraries(${PROJECT_NAME})
+ 	else()
+-		target_link_libraries(${PROJECT_NAME} -lpthread -lm)
++		target_link_libraries(${PROJECT_NAME} -lgui -ldraw -lipc -lcore -lpthread -lm -lstdc++)
+ 	endif()
+ endif()

Ports/c-ray/patches/lower-hdr-json-settings.patch

@@ -0,0 +1,26 @@
+diff --git a/input/hdr.json b/input/hdr.json
+index c3fd066..ebd69da 100644
+--- a/input/hdr.json
++++ b/input/hdr.json
+@@ -2,8 +2,8 @@
+ 	"version": 1.0,
+ 	"renderer": {
+ 		"threadCount": 0,
+-		"sampleCount": 250,
+-		"bounces": 30,
++		"sampleCount": 1,
++		"bounces": 2,
+ 		"antialiasing": true,
+ 		"tileWidth": 64,
+ 		"tileHeight": 64,
+@@ -39,8 +39,8 @@
+ 		"outputFileName": "rendered",
+ 		"fileType": "png",
+ 		"count": 0,
+-		"width": 1280,
+-		"height": 800,
++		"width": 300,
++		"height": 200,
+ 		"ambientColor": {
+ 			"hdr": "input/HDRs/rooitou_park_1k.hdr",
+ 			"offset": 0,

Ports/c-ray/patches/patch-renderthread-and-main-loop.patch

@@ -0,0 +1,58 @@
+diff --git a/src/renderer/renderer.c b/src/renderer/renderer.c
+index 835d99b..aa06055 100644
+--- a/src/renderer/renderer.c
++++ b/src/renderer/renderer.c
+@@ -20,8 +20,8 @@
+ #include "../utils/loaders/textureloader.h"
+ 
+ //Main thread loop speeds
+-#define paused_msec 100
+-#define active_msec  16
++#define paused_msec 800
++#define active_msec 400
+ 
+ /// @todo Use defaultSettings state struct for this.
+ /// @todo Clean this up, it's ugly.
+@@ -47,7 +47,6 @@ void render(struct renderer *r) {
+ 	//Main loop (input)
+ 	bool threadsHaveStarted = false;
+ 	float avgRayTime = 0.0f;
+-	int pauser = 0;
+ 	float finalAvg = 0.0f;
+ 	int ctr = 1;
+ 	while (r->state.isRendering) {
+@@ -66,25 +65,6 @@ void render(struct renderer *r) {
+ 			sleepMSec(paused_msec);
+ 		}
+ 		
+-		//Run the sample printing about 4x/s
+-		if (pauser == 280 / active_msec) {
+-			long remainingSampleCount = ((r->state.tileCount - r->state.finishedTileCount) * r->prefs.tileWidth * r->prefs.tileHeight * r->prefs.sampleCount);
+-			double sps = (1000000.0f/finalAvg) * r->prefs.threadCount;
+-			long usecTillFinished = remainingSampleCount * finalAvg;
+-			char rem[32];
+-			smartTime((0.001 * usecTillFinished) / r->prefs.threadCount, rem);
+-			float completion = ((float)r->state.finishedTileCount / r->state.tileCount) * 100;
+-			logr(info, "[%s%.0f%%%s] μs/ray: %.02f, etf: %s, %.02lfMs/s %s        \r",
+-				 KBLU,
+-				 KNRM,
+-				 completion,
+-				 finalAvg,
+-				 rem,
+-				 0.000001*sps,
+-				 r->state.threadStates[0].paused ? "[PAUSED]" : "");
+-			pauser = 0;
+-		}
+-		pauser++;
+ 		
+ 		if (!threadsHaveStarted) {
+ 			threadsHaveStarted = true;
+@@ -286,7 +266,7 @@ void *renderThread(void *arg) {
+ 	//No more tiles to render, exit thread. (render done)
+ 	tinfo->threadComplete = true;
+ 	tinfo->currentTileNum = -1;
+-	return 0;
++	pthread_exit((void*) arg); //for Serenity, return 0 didn't work
+ }
+ 	
+ struct renderer *newRenderer() {