コード例 #1
0
ファイル: nanovg.cpp プロジェクト: eriser/gl-examples
    NanoExampleWidget(Window& parent)
        : NanoWidget(parent),
          fContext(getContext())
    {
        parent.addIdleCallback(this);

        loadDemoData(fContext, &fData);
    }
コード例 #2
0
ファイル: main.c プロジェクト: yui0/catgl
// 表示の初期化
void caInit(int w, int h)
{
	width = w;
	height = h;
	pixelRatio = (float)width / (float)height;

	vg = nvgCreate(NVG_ANTIALIAS | NVG_STENCIL_STROKES);

	if (loadDemoData(vg, &data) == -1) return;
}
コード例 #3
0
ファイル: example_gl2.c プロジェクト: Nairou/nanovg
int main()
{
	GLFWwindow* window;
	struct DemoData data;
	struct NVGcontext* vg = NULL;
	struct PerfGraph fps;
	double prevt = 0;

	if (!glfwInit()) {
		printf("Failed to init GLFW.");
		return -1;
	}

	initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");

	glfwSetErrorCallback(errorcb);

	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
#ifdef DEMO_MSAA
	glfwWindowHint(GLFW_SAMPLES, 4);
#endif

    window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
//	window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
	if (!window) {
		glfwTerminate();
		return -1;
	}

	glfwSetKeyCallback(window, key);

	glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
    if(glewInit() != GLEW_OK) {
		printf("Could not init glew.\n");
		return -1;
	}
#endif

#ifdef DEMO_MSAA
	vg = nvgCreateGL2(512, 512, 0);
#else
	vg = nvgCreateGL2(512, 512, NVG_ANTIALIAS);
#endif
	if (vg == NULL) {
		printf("Could not init nanovg.\n");
		return -1;
	}

	if (loadDemoData(vg, &data) == -1)
		return -1;

	glfwSwapInterval(0);

	glfwSetTime(0);
	prevt = glfwGetTime();

	while (!glfwWindowShouldClose(window))
	{
		double mx, my, t, dt;
		int winWidth, winHeight;
		int fbWidth, fbHeight;
		float pxRatio;

		t = glfwGetTime();
		dt = t - prevt;
		prevt = t;
		updateGraph(&fps, dt);

		glfwGetCursorPos(window, &mx, &my);
		glfwGetWindowSize(window, &winWidth, &winHeight);
		glfwGetFramebufferSize(window, &fbWidth, &fbHeight);

		// Calculate pixel ration for hi-dpi devices.
		pxRatio = (float)fbWidth / (float)winWidth;

		// Update and render
		glViewport(0, 0, fbWidth, fbHeight);
		if (premult)
			glClearColor(0,0,0,0);
		else
			glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);

		nvgBeginFrame(vg, winWidth, winHeight, pxRatio, premult ? NVG_PREMULTIPLIED_ALPHA : NVG_STRAIGHT_ALPHA);

		renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
		renderGraph(vg, 5,5, &fps);

		nvgEndFrame(vg);

		if (screenshot) {
			screenshot = 0;
			saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
		}
		
		glfwSwapBuffers(window);
		glfwPollEvents();
	}

	freeDemoData(vg, &data);

	nvgDeleteGL2(vg);

	glfwTerminate();
	return 0;
}
コード例 #4
0
ファイル: example_gl3.c プロジェクト: imclab/nanovg
int main()
{
	GLFWwindow* window;
	struct DemoData data;
	struct NVGcontext* vg = NULL;
	struct GPUtimer gpuTimer;
	struct PerfGraph fps, cpuGraph, gpuGraph;
	double prevt = 0, cpuTime = 0;

	if (!glfwInit()) {
		printf("Failed to init GLFW.");
		return -1;
	}

	initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
	initGraph(&cpuGraph, GRAPH_RENDER_MS, "CPU Time");
	initGraph(&gpuGraph, GRAPH_RENDER_MS, "GPU Time");

	glfwSetErrorCallback(errorcb);
#ifndef _WIN32 // don't require this on win32, and works with more cards
	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif

#ifdef DEMO_MSAA
	glfwWindowHint(GLFW_SAMPLES, 4);
#endif
	window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
//	window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
	if (!window) {
		glfwTerminate();
		return -1;
	}

	glfwSetKeyCallback(window, key);

	glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
	glewExperimental = GL_TRUE;
	if(glewInit() != GLEW_OK) {
		printf("Could not init glew.\n");
		return -1;
	}
#endif

#ifdef DEMO_MSAA
	vg = nvgCreateGL3(512, 512, 0);
#else
	vg = nvgCreateGL3(512, 512, NVG_ANTIALIAS);
#endif
	if (vg == NULL) {
		printf("Could not init nanovg.\n");
		return -1;
	}

	if (loadDemoData(vg, &data) == -1)
		return -1;

	glfwSwapInterval(0);

	initGPUTimer(&gpuTimer);

	glfwSetTime(0);
	prevt = glfwGetTime();

	while (!glfwWindowShouldClose(window))
	{
		double mx, my, t, dt;
		int winWidth, winHeight;
		int fbWidth, fbHeight;
		float pxRatio;
		float gpuTimes[3];
		int i, n;

		t = glfwGetTime();
		dt = t - prevt;
		prevt = t;

		startGPUTimer(&gpuTimer);

		glfwGetCursorPos(window, &mx, &my);
		glfwGetWindowSize(window, &winWidth, &winHeight);
		glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
		// Calculate pixel ration for hi-dpi devices.
		pxRatio = (float)fbWidth / (float)winWidth;

		// Update and render
		glViewport(0, 0, fbWidth, fbHeight);
		if (premult)
			glClearColor(0,0,0,0);
		else
			glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);

		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_CULL_FACE);
		glDisable(GL_DEPTH_TEST);

		nvgBeginFrame(vg, winWidth, winHeight, pxRatio, premult ? NVG_PREMULTIPLIED_ALPHA : NVG_STRAIGHT_ALPHA);

		renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);

		renderGraph(vg, 5,5, &fps);
		renderGraph(vg, 5+200+5,5, &cpuGraph);
		if (gpuTimer.supported)
			renderGraph(vg, 5+200+5+200+5,5, &gpuGraph);

		nvgEndFrame(vg);

		glEnable(GL_DEPTH_TEST);

		// Measure the CPU time taken excluding swap buffers (as the swap may wait for GPU)
		cpuTime = glfwGetTime() - t;

		updateGraph(&fps, dt);
		updateGraph(&cpuGraph, cpuTime);

		// We may get multiple results.
		n = stopGPUTimer(&gpuTimer, gpuTimes, 3);
		for (i = 0; i < n; i++)
			updateGraph(&gpuGraph, gpuTimes[i]);

		if (screenshot) {
			screenshot = 0;
			saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
		}

		glfwSwapBuffers(window);
		glfwPollEvents();
	}

	freeDemoData(vg, &data);

	nvgDeleteGL3(vg);

	printf("Average Frame Time: %.2f ms\n", getGraphAverage(&fps) * 1000.0f);
	printf("          CPU Time: %.2f ms\n", getGraphAverage(&cpuGraph) * 1000.0f);
	printf("          GPU Time: %.2f ms\n", getGraphAverage(&gpuGraph) * 1000.0f);

	glfwTerminate();
	return 0;
}
コード例 #5
0
int main()
{
	GLFWwindow* window;
	DemoData data;
	NVGcontext* vg = NULL;
	PerfGraph fps;
	double prevt = 0;

	if (!glfwInit()) {
		printf("Failed to init GLFW.");
		return -1;
	}

	initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");

	glfwSetErrorCallback(errorcb);

	glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);

	window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
//	window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
	if (!window) {
		glfwTerminate();
		return -1;
	}

	glfwSetKeyCallback(window, key);

	glfwMakeContextCurrent(window);

	vg = nvgCreateGLES2(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
	if (vg == NULL) {
		printf("Could not init nanovg.\n");
		return -1;
	}

	if (loadDemoData(vg, &data) == -1)
		return -1;

	glfwSwapInterval(0);

	glfwSetTime(0);
	prevt = glfwGetTime();

	while (!glfwWindowShouldClose(window))
	{
		double mx, my, t, dt;
		int winWidth, winHeight;
		int fbWidth, fbHeight;
		float pxRatio;

		t = glfwGetTime();
		dt = t - prevt;
		prevt = t;
		updateGraph(&fps, dt);

		glfwGetCursorPos(window, &mx, &my);
		glfwGetWindowSize(window, &winWidth, &winHeight);
		glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
		// Calculate pixel ration for hi-dpi devices.
		pxRatio = (float)fbWidth / (float)winWidth;

		// Update and render
		glViewport(0, 0, fbWidth, fbHeight);
		if (premult)
			glClearColor(0,0,0,0);
		else
			glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);

		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_CULL_FACE);
		glDisable(GL_DEPTH_TEST);

		nvgBeginFrame(vg, winWidth, winHeight, pxRatio);

		renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
		renderGraph(vg, 5,5, &fps);

		nvgEndFrame(vg);

		if (screenshot) {
			screenshot = 0;
			saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
		}
		
		glEnable(GL_DEPTH_TEST);

		glfwSwapBuffers(window);
		glfwPollEvents();
	}

	freeDemoData(vg, &data);

	nvgDeleteGLES2(vg);

	glfwTerminate();
	return 0;
}
コード例 #6
0
ファイル: nanovg.cpp プロジェクト: LSBOSS/bgfx
int _main_(int _argc, char** _argv)
{
	Args args(_argc, _argv);

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init(args.m_type, args.m_pciId);
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	imguiCreate();

	NVGcontext* nvg = nvgCreate(1, 0);
	bgfx::setViewSeq(0, true);

	DemoData data;
	loadDemoData(nvg, &data);

	bndSetFont(nvgCreateFont(nvg, "droidsans", "font/droidsans.ttf") );
	bndSetIconImage(nvgCreateImage(nvg, "images/blender_icons16.png", 0) );

	int64_t timeOffset = bx::getHPCounter();

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		int64_t now = bx::getHPCounter();
		const double freq = double(bx::getHPFrequency() );
		float time = (float)( (now-timeOffset)/freq);

		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::touch(0);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/20-nanovg");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: NanoVG is small antialiased vector graphics rendering library.");

		nvgBeginFrame(nvg, width, height, 1.0f);

		renderDemo(nvg, float(mouseState.m_mx), float(mouseState.m_my), float(width), float(height), time, 0, &data);

		nvgEndFrame(nvg);

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	freeDemoData(nvg, &data);

	nvgDelete(nvg);

	imguiDestroy();

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
コード例 #7
0
ファイル: example_gl3.c プロジェクト: FelixZhang00/nanovg
int main()
{
	GLFWwindow* window;
	struct DemoData data;
	struct NVGcontext* vg = NULL;
	struct FPScounter fps;
	double prevt = 0;

	if (!glfwInit()) {
		printf("Failed to init GLFW.");
		return -1;
	}

	initFPS(&fps);

	glfwSetErrorCallback(errorcb);

	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

    window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
	if (!window) {
		glfwTerminate();
		return -1;
	}

	glfwSetKeyCallback(window, key);

	glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
	glewExperimental = GL_TRUE;
    if(glewInit() != GLEW_OK) {
		printf("Could not init glew.\n");
		return -1;
	}
#endif

	vg = nvgCreateGL3(512,512);
	if (vg == NULL) {
		printf("Could not init nanovg.\n");
		return -1;
	}

	if (loadDemoData(vg, &data) == -1)
		return -1;

	glfwSwapInterval(0);

	glfwSetTime(0);
	prevt = glfwGetTime();

	while (!glfwWindowShouldClose(window))
	{
		double mx, my, t, dt;
		int width, height;

		t = glfwGetTime();
		dt = t - prevt;
		prevt = t;
		updateFPS(&fps, dt);

		glfwGetCursorPos(window, &mx, &my);
		glfwGetFramebufferSize(window, &width, &height);

		// Update and render
		glViewport(0, 0, width, height);
		glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_CULL_FACE);
		glDisable(GL_DEPTH_TEST);

		nvgBeginFrame(vg, width, height);

		renderDemo(vg, mx,my, width,height, t, blowup, &data);
		renderFPS(vg, 5,5, &fps);

		glEnable(GL_DEPTH_TEST);

		glfwSwapBuffers(window);
		glfwPollEvents();
	}

	freeDemoData(vg, &data);

	nvgDeleteGL3(vg);

	glfwTerminate();
	return 0;
}