public DrawImage ( |
||
bmp | ||
srcRect | Drawing | |
x | float | |
y | float | |
w | float | |
h | float | |
Résultat | void |
public override void DrawImage(ActualImage actualImage, params AffinePlan[] affinePlans) { //create gl bmp GLBitmap glBmp = new GLBitmap(actualImage.Width, actualImage.Height, ActualImage.GetBuffer(actualImage), false); _canvas.DrawImage(glBmp, 0, 0); glBmp.Dispose(); }
public void DrawString(char[] text, double x, double y) { aggPainter.Clear(Drawing.Color.White); //draw text textPrinter.DrawString(text, 0, 18); byte[] buffer = PixelFarm.Agg.ActualImage.GetBuffer(actualImage); //------------------------------------------------------ GLBitmap glBmp = new GLBitmap(bmpWidth, bmpHeight, buffer, true); bool isYFliped = canvas.FlipY; if (isYFliped) { canvas.DrawImage(glBmp, (float)x, (float)y); } else { canvas.FlipY = true; canvas.DrawImage(glBmp, (float)x, (float)y); canvas.FlipY = false; } glBmp.Dispose(); }
public void DrawString(CanvasGL2d canvas, string text, float x, float y) { char[] textBuffer = text.ToCharArray(); Win32.MyWin32.PatBlt(memdc.DC, 0, 0, bmpWidth, bmpHeight, Win32.MyWin32.WHITENESS); Win32.NativeTextWin32.TextOut(memdc.DC, 0, 0, textBuffer, textBuffer.Length); // Win32.Win32Utils.BitBlt(hdc, 0, 0, bmpWidth, 50, memHdc, 0, 0, Win32.MyWin32.SRCCOPY); //--------------- int stride = 4 * ((bmpWidth * 32 + 31) / 32); //Bitmap newBmp = new Bitmap(bmpWidth, 50, System.Drawing.Imaging.PixelFormat.Format32bppArgb); //var bmpData = newBmp.LockBits(new Rectangle(0, 0, bmpWidth, 50), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb); byte[] tmp1 = new byte[stride * 50]; System.Runtime.InteropServices.Marshal.Copy(memdc.PPVBits, tmp1, 0, tmp1.Length); //--------------- int pos = 3; for (int r = 0; r < 50; ++r) { for (int c = 0; c < stride; ++c) { tmp1[pos] = 255; pos += 4; c += 4; } } Win32.NativeTextWin32.WIN32SIZE win32Size; unsafe { fixed (char* bufferHead = &textBuffer[0]) { Win32.NativeTextWin32.GetTextExtentPoint32Char(memdc.DC, bufferHead, textBuffer.Length, out win32Size); } } bmpWidth = win32Size.Width; bmpHeight = win32Size.Height; var actualImg = new Agg.ActualImage(bmpWidth, bmpHeight, Agg.PixelFormat.ARGB32); //------------------------------------------------------ //copy bmp from specific bmp area //and convert to GLBmp byte[] buffer = PixelFarm.Agg.ActualImage.GetBuffer(actualImg); unsafe { byte* header = (byte*)memdc.PPVBits; fixed (byte* dest0 = &buffer[0]) { byte* dest = dest0; byte* rowHead = header; int rowLen = bmpWidth * 4; for (int h = 0; h < bmpHeight; ++h) { header = rowHead; for (int n = 0; n < rowLen; ) { //move next *(dest + 0) = *(header + 0); *(dest + 1) = *(header + 1); *(dest + 2) = *(header + 2); //*(dest + 3) = *(header + 3); *(dest + 3) = 255; header += 4; dest += 4; n += 4; } //finish one row rowHead += stride; } } } //------------------------------------------------------ GLBitmap glBmp = new GLBitmap(bmpWidth, bmpHeight, buffer, false); canvas.DrawImage(glBmp, (float)x, (float)y); glBmp.Dispose(); }
public static void Start() { if (!Glfw.Init()) { Console.WriteLine("can't init glfw"); return; } //--------------------------------------------------- //specific OpenGLES *** Glfw.WindowHint(WindowHint.GLFW_CLIENT_API, (int)OpenGLAPI.OpenGLESAPI); Glfw.WindowHint(WindowHint.GLFW_CONTEXT_CREATION_API, (int)OpenGLContextCreationAPI.GLFW_EGL_CONTEXT_API); Glfw.WindowHint(WindowHint.GLFW_CONTEXT_VERSION_MAJOR, 2); Glfw.WindowHint(WindowHint.GLFW_CONTEXT_VERSION_MINOR, 0); //--------------------------------------------------- Glfw.SwapInterval(1); GlFwForm form1 = GlfwApp.CreateGlfwForm( 800, 600, "PixelFarm + Skia on GLfw and OpenGLES2"); form1.MakeCurrent(); //------------------------------------ //*** GLFWPlatforms.CreateGLESContext(); //------------------------------------ form1.Activate(); int ww_w = 800; int ww_h = 600; int max = Math.Max(ww_w, ww_h); canvasGL2d = PixelFarm.Drawing.GLES2.GLES2Platform.CreateCanvasGL2d(max, max); //------------------------------------ GL.Enable(EnableCap.Blend); GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha); GL.ClearColor(1, 1, 1, 1); //-------------------------------------------------------------------------------- //setup viewport size //set up canvas needUpdateContent = true; //GL.Viewport(0, 0, 800, 600); GL.Viewport(0, 0, max, max); FormRenderUpdateEventArgs formRenderUpdateEventArgs = new FormRenderUpdateEventArgs(); formRenderUpdateEventArgs.form = form1; form1.SetDrawFrameDelegate(() => { if (needUpdateContent) { UpdateViewContent(formRenderUpdateEventArgs); } canvasGL2d.Clear(Color.Blue); canvasGL2d.DrawImage(glBmp, 0, 600); }); while (!GlfwApp.ShouldClose()) { //--------------- //render phase and swap GlfwApp.UpdateWindowsFrame(); /* Poll for and process events */ Glfw.PollEvents(); } Glfw.Terminate(); }
public void DrawString(char[] textBuffer, double x, double y) { //TODO: review performan Win32.MyWin32.PatBlt(memdc.DC, 0, 0, bmpWidth, bmpHeight, Win32.MyWin32.WHITENESS); Win32.NativeTextWin32.TextOut(memdc.DC, 0, 0, textBuffer, textBuffer.Length); // Win32.Win32Utils.BitBlt(hdc, 0, 0, bmpWidth, 50, memHdc, 0, 0, Win32.MyWin32.SRCCOPY); //--------------- int stride = 4 * ((bmpWidth * 32 + 31) / 32); //Bitmap newBmp = new Bitmap(bmpWidth, 50, System.Drawing.Imaging.PixelFormat.Format32bppArgb); //var bmpData = newBmp.LockBits(new Rectangle(0, 0, bmpWidth, 50), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb); byte[] tmp1 = new byte[stride * 50]; System.Runtime.InteropServices.Marshal.Copy(memdc.PPVBits, tmp1, 0, tmp1.Length); //--------------- int pos = 3; for (int r = 0; r < 50; ++r) { for (int c = 0; c < stride; ++c) { tmp1[pos] = 255; pos += 4; c += 4; } } Win32.NativeTextWin32.WIN32SIZE win32Size; unsafe { fixed(char *bufferHead = &textBuffer[0]) { Win32.NativeTextWin32.GetTextExtentPoint32Char(memdc.DC, bufferHead, textBuffer.Length, out win32Size); } } bmpWidth = win32Size.Width; bmpHeight = win32Size.Height; var actualImg = new Agg.ActualImage(bmpWidth, bmpHeight, Agg.PixelFormat.ARGB32); //------------------------------------------------------ //copy bmp from specific bmp area //and convert to GLBmp byte[] buffer = PixelFarm.Agg.ActualImage.GetBuffer(actualImg); unsafe { byte *header = (byte *)memdc.PPVBits; fixed(byte *dest0 = &buffer[0]) { byte *dest = dest0; byte *rowHead = header; int rowLen = bmpWidth * 4; for (int h = 0; h < bmpHeight; ++h) { header = rowHead; for (int n = 0; n < rowLen;) { //move next *(dest + 0) = *(header + 0); *(dest + 1) = *(header + 1); *(dest + 2) = *(header + 2); //*(dest + 3) = *(header + 3); *(dest + 3) = 255; header += 4; dest += 4; n += 4; } //finish one row rowHead += stride; } } } //------------------------------------------------------ GLBitmap glBmp = new GLBitmap(bmpWidth, bmpHeight, buffer, false); canvas.DrawImage(glBmp, (float)x, (float)y); glBmp.Dispose(); }