// Author:
//
// Jordi Mas i Hernàndez (jmas@softcatala.org>
+// Jonathan Gilbert <logic@deltaq.org>
//
// (C) 2004 Ximian, Inc. http://www.ximian.com
+// Copyright (C) 2004,2006 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Drawing;
using System.Drawing.Imaging;
using NUnit.Framework;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Security.Permissions;
namespace MonoTests.System.Drawing{
- [TestFixture]
- public class BitMapTest : Assertion {
-
- [TearDown]
- public void Clean() {}
+ [TestFixture]
+ [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
+ public class TestBitmap {
- [SetUp]
- public void GetReady()
- {
-
- }
-
- //[Test]
+ [Test]
public void TestPixels()
{
// Tests GetSetPixel/SetPixel
- Bitmap bmp= new Bitmap(100,100, PixelFormat.Format32bppRgb);
+ Bitmap bmp= new Bitmap(100,100, PixelFormat.Format32bppRgb);
bmp.SetPixel(0,0,Color.FromArgb(255,128,128,128));
Color color = bmp.GetPixel(0,0);
- AssertEquals (Color.FromArgb(255,128,128,128), color);
+ Assert.AreEqual (Color.FromArgb(255,128,128,128), color);
bmp.SetPixel(99,99,Color.FromArgb(255,255,0,155));
Color color2 = bmp.GetPixel(99,99);
- AssertEquals (Color.FromArgb(255,255,0,155), color2);
+ Assert.AreEqual (Color.FromArgb(255,255,0,155), color2);
}
-
- /* Get the right directory depending on the runtime*/
- internal string getSubDir()
+
+ [Test]
+ public void LockBits_NonIndexedWrite ()
+ {
+ Bitmap bmp= new Bitmap(100,100, PixelFormat.Format32bppRgb);
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData mybitmapdata = bmp.LockBits(rect, ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
+ bmp.UnlockBits (mybitmapdata);
+ }
+
+ [Test]
+ [ExpectedException (typeof (ArgumentException))]
+ public void LockBits_IndexedWrite ()
+ {
+ Bitmap bmp= new Bitmap(100,100, PixelFormat.Format8bppIndexed);
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData mybitmapdata = bmp.LockBits(rect, ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
+ bmp.UnlockBits (mybitmapdata);
+ }
+
+ /* Get the output directory depending on the runtime and location*/
+ public static string getOutSubDir()
{
- string sRslt;
+ string sSub, sRslt;
if (Environment.GetEnvironmentVariable("MSNet")==null)
- sRslt = "mono/";
+ sSub = "mono/";
else
- sRslt = "MSNet/";
+ sSub = "MSNet/";
+
+ sRslt = Path.GetFullPath (sSub);
+ if (Directory.Exists(sRslt) == false)
+ sRslt = "Test/System.Drawing/" + sSub;
+
+ if (sRslt.Length > 0)
+ if (sRslt[sRslt.Length-1] != '\\' && sRslt[sRslt.Length-1] != '/')
+ sRslt += "/";
+
return sRslt;
}
- [Test]
- public void BitmapLoadAndSave()
+ /* Get the input directory depending on the runtime*/
+ public static string getInFile(string file)
{
- string sOutFile = getSubDir() + "linerect.bmp";
-
- // Save
- Bitmap bmp = new Bitmap(100,100, PixelFormat.Format32bppRgb);
- Graphics gr = Graphics.FromImage(bmp);
-
- Pen p = new Pen(Color.Red, 2);
- gr.DrawLine(p, 10.0F, 10.0F, 90.0F, 90.0F);
- gr.DrawRectangle(p, 10.0F, 10.0F, 80.0F, 80.0F);
- p.Dispose();
- bmp.Save(sOutFile, ImageFormat.Bmp);
- gr.Dispose();
- bmp.Dispose();
-
- // Load
- Bitmap bmpLoad = new Bitmap(sOutFile);
- if( bmpLoad == null)
- Console.WriteLine("Unable to load "+ sOutFile);
+ string sRslt;
- Color color = bmpLoad.GetPixel(10,10);
+ sRslt = Path.GetFullPath (file);
+
+ if (File.Exists(file)==false)
+ sRslt = "Test/System.Drawing/" + file;
- Console.WriteLine("Color "+ color);
- AssertEquals (Color.FromArgb(255,255,0,0), color);
+ return sRslt;
}
- [Test]
+ // note: this test fails when saving (for the same reason) on Mono and MS.NET
+ //[Test]
public void MakeTransparent()
{
- string sInFile = "bitmaps/maketransparent.bmp";
- string sOutFile = getSubDir() + "transparent.bmp";
+ string sInFile = getInFile("bitmaps/maketransparent.bmp");
+ string sOutFile = getOutSubDir() + "transparent.bmp";
Bitmap bmp = new Bitmap(sInFile);
- Console.WriteLine("Bitmap loaded OK", bmp != null);
bmp.MakeTransparent();
bmp.Save(sOutFile);
Color color = bmp.GetPixel(1,1);
- AssertEquals (Color.Black.R, color.R);
- AssertEquals (Color.Black.G, color.G);
- AssertEquals (Color.Black.B, color.B);
+ Assert.AreEqual (Color.Black.R, color.R);
+ Assert.AreEqual (Color.Black.G, color.G);
+ Assert.AreEqual (Color.Black.B, color.B);
}
[Test]
- public void Clone ()
+ public void Clone()
{
- string sInFile = "bitmaps/almogaver24bits.bmp";
- string sOutFile = getSubDir() + "clone24.bmp";
-
+ string sInFile = getInFile ("bitmaps/almogaver24bits.bmp");
Rectangle rect = new Rectangle(0,0,50,50);
Bitmap bmp = new Bitmap(sInFile);
- Bitmap bmpNew = bmp.Clone (rect, PixelFormat.Format32bppArgb);
- bmpNew.Save(sOutFile);
-
+ Bitmap bmpNew = bmp.Clone (rect, PixelFormat.Format32bppArgb);
Color colororg0 = bmp.GetPixel(0,0);
Color colororg50 = bmp.GetPixel(49,49);
Color colornew0 = bmpNew.GetPixel(0,0);
Color colornew50 = bmpNew.GetPixel(49,49);
- AssertEquals (colororg0, colornew0);
- AssertEquals (colororg50, colornew50);
+ Assert.AreEqual (colororg0, colornew0);
+ Assert.AreEqual (colororg50, colornew50);
+ }
+
+ [Test]
+ public void CloneImage()
+ {
+ string sInFile = getInFile ("bitmaps/almogaver24bits.bmp");
+ Bitmap bmp = new Bitmap(sInFile);
+
+ Bitmap bmpNew = (Bitmap) bmp.Clone ();
+
+ Assert.AreEqual (bmp.Width, bmpNew.Width);
+ Assert.AreEqual (bmp.Height, bmpNew.Height);
+ Assert.AreEqual (bmp.PixelFormat, bmpNew.PixelFormat);
+
}
-
+
+ [Test]
+ public void Frames()
+ {
+ string sInFile = getInFile ("bitmaps/almogaver24bits.bmp");
+ Bitmap bmp = new Bitmap(sInFile);
+ int cnt = bmp.GetFrameCount(FrameDimension.Page);
+ int active = bmp.SelectActiveFrame (FrameDimension.Page, 0);
+
+ Assert.AreEqual (1, cnt);
+ Assert.AreEqual (0, active);
+ }
+
+ [Test]
+ [ExpectedException (typeof (ArgumentException))]
+#if TARGET_JVM
+ [Category ("NotWorking")]
+#endif
+ public void FileDoesNotExists ()
+ {
+ Bitmap bmp = new Bitmap ("FileDoesNotExists.jpg");
+ }
+
+ static string ByteArrayToString(byte[] arrInput)
+ {
+ int i;
+ StringBuilder sOutput = new StringBuilder(arrInput.Length);
+ for (i=0;i < arrInput.Length -1; i++)
+ {
+ sOutput.Append(arrInput[i].ToString("X2"));
+ }
+ return sOutput.ToString();
+ }
+
+
+ public string RotateBmp (Bitmap src, RotateFlipType rotate)
+ {
+ int width = 150, height = 150, index = 0;
+ byte[] pixels = new byte [width * height * 3];
+ Bitmap bmp_rotate;
+ byte[] hash;
+ Color clr;
+
+ bmp_rotate = src.Clone (new RectangleF (0,0, width, height), PixelFormat.Format32bppArgb);
+ bmp_rotate.RotateFlip (rotate);
+
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x++) {
+ clr = bmp_rotate.GetPixel (x,y);
+ pixels[index++] = clr.R; pixels[index++] = clr.G; pixels[index++] = clr.B;
+ }
+ }
+
+ hash = new MD5CryptoServiceProvider().ComputeHash (pixels);
+ return ByteArrayToString (hash);
+ }
+#if !TARGET_JVM
+ public string RotateIndexedBmp (Bitmap src, RotateFlipType type)
+ {
+ int pixels_per_byte;
+
+ switch (src.PixelFormat)
+ {
+ case PixelFormat.Format1bppIndexed: pixels_per_byte = 8; break;
+ case PixelFormat.Format4bppIndexed: pixels_per_byte = 2; break;
+ case PixelFormat.Format8bppIndexed: pixels_per_byte = 1; break;
+
+ default: throw new Exception("Cannot pass a bitmap of format " + src.PixelFormat + " to RotateIndexedBmp");
+ }
+
+ Bitmap test = src.Clone () as Bitmap;
+
+ test.RotateFlip (type);
+
+ BitmapData data = null;
+ byte[] pixel_data;
+
+ try
+ {
+ data = test.LockBits (new Rectangle (0, 0, test.Width, test.Height), ImageLockMode.ReadOnly, test.PixelFormat);
+
+ int scan_size = (data.Width + pixels_per_byte - 1) / pixels_per_byte;
+ pixel_data = new byte[data.Height * scan_size];
+
+ for (int y=0; y < data.Height; y++) {
+ IntPtr src_ptr = (IntPtr)(y * data.Stride + data.Scan0.ToInt64 ());
+ int dest_offset = y * scan_size;
+ for (int x=0; x < scan_size; x++)
+ pixel_data[dest_offset + x] = Marshal.ReadByte (src_ptr, x);
+ }
+ }
+ finally
+ {
+ if (test != null) {
+ if (data != null)
+ try { test.UnlockBits(data); } catch {}
+
+ try { test.Dispose(); } catch {}
+ }
+ }
+
+ if (pixel_data == null)
+ return "--ERROR--";
+
+ byte[] hash = new MD5CryptoServiceProvider().ComputeHash (pixel_data);
+ return ByteArrayToString (hash);
+ }
+#endif
+
+
+ /*
+ Rotate bitmap in diffent ways, and check the result
+ pixels using MD5
+ */
+ [Test]
+ public void Rotate()
+ {
+ string sInFile = getInFile ("bitmaps/almogaver24bits.bmp");
+ Bitmap bmp = new Bitmap(sInFile);
+
+ Assert.AreEqual ("312958A3C67402E1299413794988A3", RotateBmp (bmp, RotateFlipType.Rotate90FlipNone));
+ Assert.AreEqual ("BF70D8DA4F1545AEDD77D0296B47AE", RotateBmp (bmp, RotateFlipType.Rotate180FlipNone));
+ Assert.AreEqual ("15AD2ADBDC7090C0EC744D0F7ACE2F", RotateBmp (bmp, RotateFlipType.Rotate270FlipNone));
+ Assert.AreEqual ("2E10FEC1F4FD64ECC51D7CE68AEB18", RotateBmp (bmp, RotateFlipType.RotateNoneFlipX));
+ Assert.AreEqual ("E63204779B566ED01162B90B49BD9E", RotateBmp (bmp, RotateFlipType.Rotate90FlipX));
+ Assert.AreEqual ("B1ECB17B5093E13D04FF55CFCF7763", RotateBmp (bmp, RotateFlipType.Rotate180FlipX));
+ Assert.AreEqual ("71A173882C16755D86F4BC26532374", RotateBmp (bmp, RotateFlipType.Rotate270FlipX));
+
+ }
+
+#if !TARGET_JVM
+ /*
+ Rotate 1- and 4-bit bitmaps in different ways and check the
+ resulting pixels using MD5
+ */
+ [Test]
+ [Category ("NotDotNet")] // that doesn't work under MS.NET and Windows (even without the StreamWriter)
+ public void Rotate1bit4bit()
+ {
+ string[] files = {
+ getInFile ("bitmaps/1bit.png"),
+ getInFile ("bitmaps/4bit.png")
+ };
+
+ StringBuilder md5s = new StringBuilder();
+
+ foreach (string file in files)
+ using (Bitmap bmp = new Bitmap(file))
+ foreach (RotateFlipType type in Enum.GetValues (typeof(RotateFlipType)))
+ md5s.Append (RotateIndexedBmp (bmp, type));
+
+ using (StreamWriter writer = new StreamWriter("/tmp/md5s.txt"))
+ writer.WriteLine(md5s);
+
+ Assert.AreEqual (
+ "A4DAF507C92BDE10626BC7B34FEFE5" + // 1-bit RotateNoneFlipNone
+ "A4DAF507C92BDE10626BC7B34FEFE5" + // 1-bit Rotate180FlipXY
+ "C0975EAFD2FC1CC9CC7AF20B92FC9F" + // 1-bit Rotate90FlipNone
+ "C0975EAFD2FC1CC9CC7AF20B92FC9F" + // 1-bit Rotate270FlipXY
+ "64AE60858A02228F7B1B18C7812FB6" + // 1-bit Rotate180FlipNone
+ "64AE60858A02228F7B1B18C7812FB6" + // 1-bit RotateNoneFlipXY
+ "E96D3390938350F9DE2608C4364424" + // 1-bit Rotate270FlipNone
+ "E96D3390938350F9DE2608C4364424" + // 1-bit Rotate90FlipXY
+ "23947CE822C1DDE6BEA69C01F8D0D9" + // 1-bit RotateNoneFlipX
+ "23947CE822C1DDE6BEA69C01F8D0D9" + // 1-bit Rotate180FlipY
+ "BE45F685BDEBD7079AA1B2CBA46723" + // 1-bit Rotate90FlipX
+ "BE45F685BDEBD7079AA1B2CBA46723" + // 1-bit Rotate270FlipY
+ "353E937CFF31B1BF6C3DD0A031ACB5" + // 1-bit Rotate180FlipX
+ "353E937CFF31B1BF6C3DD0A031ACB5" + // 1-bit RotateNoneFlipY
+ "AEA18A770A845E25B6A8CE28DD6DCB" + // 1-bit Rotate270FlipX
+ "AEA18A770A845E25B6A8CE28DD6DCB" + // 1-bit Rotate90FlipY
+ "3CC874B571902366AACED5D619E87D" + // 4-bit RotateNoneFlipNone
+ "3CC874B571902366AACED5D619E87D" + // 4-bit Rotate180FlipXY
+ "8DE25C7E1BE4A3B535DB5D83198D83" + // 4-bit Rotate90FlipNone
+ "8DE25C7E1BE4A3B535DB5D83198D83" + // 4-bit Rotate270FlipXY
+ "27CF5E9CE70BE9EBC47FB996721B95" + // 4-bit Rotate180FlipNone
+ "27CF5E9CE70BE9EBC47FB996721B95" + // 4-bit RotateNoneFlipXY
+ "A919CCB8F97CAD7DC1F01026D11A5D" + // 4-bit Rotate270FlipNone
+ "A919CCB8F97CAD7DC1F01026D11A5D" + // 4-bit Rotate90FlipXY
+ "545876C99ACF833E69FBFFBF436034" + // 4-bit RotateNoneFlipX
+ "545876C99ACF833E69FBFFBF436034" + // 4-bit Rotate180FlipY
+ "5DB56687757CDEFC52D89C77CA9223" + // 4-bit Rotate90FlipX
+ "5DB56687757CDEFC52D89C77CA9223" + // 4-bit Rotate270FlipY
+ "05A77EDDCDF20D5B0AC0169E95D7D7" + // 4-bit Rotate180FlipX
+ "05A77EDDCDF20D5B0AC0169E95D7D7" + // 4-bit RotateNoneFlipY
+ "B6B6245796C836923ABAABDF368B29" + // 4-bit Rotate270FlipX
+ "B6B6245796C836923ABAABDF368B29", // 4-bit Rotate90FlipY
+ md5s.ToString ());
+ }
+
+ public void LockBmp (PixelFormat fmt, PixelFormat fmtlock, string output,
+ int lwidth , int lheight, ref string hash1, ref string hash2)
+ {
+ int width = 100, height = 100, bbps, cur, pos;
+ Bitmap bmp = new Bitmap (width, height, fmt);
+ Graphics gr = Graphics.FromImage (bmp);
+ byte[] hash;
+ Color clr;
+ byte[] btv = new byte[1];
+ int y, x, len = width * height * 4, index = 0;
+ byte[] pixels = new byte [len];
+ hash1 = hash2 ="";
+
+ bbps = Image.GetPixelFormatSize (fmt);
+
+ Pen p = new Pen (Color.FromArgb (255, 100, 200, 250), 2);
+ gr.DrawRectangle(p, 1.0F, 1.0F, 80.0F, 80.0F);
+
+ BitmapData bd = bmp.LockBits (new Rectangle (0, 0, lwidth, lheight), ImageLockMode.ReadOnly, fmtlock);
+
+ pos = bd.Scan0.ToInt32();
+ for (y = 0; y < bd.Height; y++) {
+ for (x = 0; x < bd.Width; x++) {
+
+ /* Read the pixels*/
+ for (int bt =0; bt < bbps/8; bt++, index++) {
+ cur = pos;
+ cur+= y * bd.Stride;
+ cur+= x * bbps/8;
+ cur+= bt;
+ Marshal.Copy ((IntPtr)cur, btv, 0, 1);
+ pixels[index] = btv[0];
+
+ /* Make change of all the colours = 250 to 10*/
+ if (btv[0] == 250) {
+ btv[0] = 10;
+ Marshal.Copy (btv, 0, (IntPtr)cur, 1);
+ }
+ }
+ }
+ }
+
+ for (int i = index; i < len; i++)
+ pixels[index] = 0;
+
+ hash = new MD5CryptoServiceProvider().ComputeHash (pixels);
+ bmp.UnlockBits (bd);
+
+ hash1 = ByteArrayToString (hash);
+
+ /* MD5 of the changed bitmap*/
+ for (y = 0, index = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ clr = bmp.GetPixel (x,y);
+ pixels[index++] = clr.R; pixels[index++] = clr.G; pixels[index++] = clr.B;
+ }
+ }
+
+ hash = new MD5CryptoServiceProvider().ComputeHash (pixels);
+ hash2 = ByteArrayToString (hash);
+
+ /*bmp.Save (output, ImageFormat.Bmp);*/
+ }
+ /*
+ Tests the LockBitmap functions. Makes a hash of the block of pixels that it returns
+ firsts, changes them, and then using GetPixel does another check of the changes.
+ The results match the .Net framework
+ */
+ [Test]
+ [Category ("NotWorking")]
+ public void LockBitmap ()
+ {
+ string hash = "";
+ string hashchg = "";
+
+ /* Locks the whole bitmap*/
+ LockBmp (PixelFormat.Format32bppArgb, PixelFormat.Format32bppArgb, "output32bppArgb.bmp", 100, 100, ref hash, ref hashchg);
+ Assert.AreEqual ("AF5BFD4E98D6708FF4C9982CC9C68F", hash);
+ Assert.AreEqual ("BBEE27DC85563CB58EE11E8951230F", hashchg);
+
+ LockBmp (PixelFormat.Format32bppPArgb, PixelFormat.Format32bppPArgb, "output32bppPArgb.bmp", 100, 100, ref hash, ref hashchg);
+ Assert.AreEqual ("AF5BFD4E98D6708FF4C9982CC9C68F", hash);
+ Assert.AreEqual ("BBEE27DC85563CB58EE11E8951230F", hashchg);
+
+ LockBmp (PixelFormat.Format32bppRgb, PixelFormat.Format32bppRgb, "output32bppRgb.bmp", 100, 100, ref hash, ref hashchg);
+ Assert.AreEqual ("AF5BFD4E98D6708FF4C9982CC9C68F", hash);
+ Assert.AreEqual ("BBEE27DC85563CB58EE11E8951230F", hashchg);
+
+ LockBmp (PixelFormat.Format24bppRgb, PixelFormat.Format24bppRgb, "output24bppRgb.bmp", 100, 100, ref hash, ref hashchg);
+ Assert.AreEqual ("A8A071D0B3A3743905B4E193A62769", hash);
+ Assert.AreEqual ("EEE846FA8F892339C64082DFF775CF", hashchg);
+
+ /* Locks a portion of the bitmap*/
+ LockBmp (PixelFormat.Format32bppArgb, PixelFormat.Format32bppArgb, "output32bppArgb.bmp", 50, 50, ref hash, ref hashchg);
+ Assert.AreEqual ("C361FBFD82A4F3C278605AE9EC5385", hash);
+ Assert.AreEqual ("8C2C04B361E1D5875EE8ACF5073F4E", hashchg);
+
+ LockBmp (PixelFormat.Format32bppPArgb, PixelFormat.Format32bppPArgb, "output32bppPArgb.bmp", 50, 50, ref hash, ref hashchg);
+ Assert.AreEqual ("C361FBFD82A4F3C278605AE9EC5385", hash);
+ Assert.AreEqual ("8C2C04B361E1D5875EE8ACF5073F4E", hashchg);
+
+ LockBmp (PixelFormat.Format32bppRgb, PixelFormat.Format32bppRgb, "output32bppRgb.bmp", 50, 50, ref hash, ref hashchg);
+ Assert.AreEqual ("C361FBFD82A4F3C278605AE9EC5385", hash);
+ Assert.AreEqual ("8C2C04B361E1D5875EE8ACF5073F4E", hashchg);
+
+ LockBmp (PixelFormat.Format24bppRgb, PixelFormat.Format24bppRgb, "output24bppRgb.bmp", 50, 50, ref hash, ref hashchg);
+ Assert.AreEqual ("FFE86628478591D1A1EB30E894C34F", hash);
+ Assert.AreEqual ("8C2C04B361E1D5875EE8ACF5073F4E", hashchg);
+
+ }
+
+ /*
+ Tests the LockBitmap and UnlockBitmap functions, specifically the copying
+ of bitmap data in the directions indicated by the ImageLockMode.
+ */
+ [Test]
+ public void LockUnlockBitmap()
+ {
+ BitmapData data;
+ int pixel_value;
+ Color pixel_colour;
+
+ Color red = Color.FromArgb (Color.Red.A, Color.Red.R, Color.Red.G, Color.Red.B);
+ Color blue = Color.FromArgb (Color.Blue.A, Color.Blue.R, Color.Blue.G, Color.Blue.B);
+
+ using (Bitmap bmp = new Bitmap (1, 1, PixelFormat.Format24bppRgb))
+ {
+ bmp.SetPixel (0, 0, red);
+
+ data = bmp.LockBits (new Rectangle (0, 0, 1, 1), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
+ pixel_value = Marshal.ReadInt32 (data.Scan0);
+ pixel_colour = Color.FromArgb (pixel_value);
+
+ // Disregard alpha information in the test
+ pixel_colour = Color.FromArgb(red.A, pixel_colour.R, pixel_colour.G, pixel_colour.B);
+
+ Assert.AreEqual (red, pixel_colour);
+
+ Marshal.WriteInt32 (data.Scan0, blue.ToArgb ());
+
+ bmp.UnlockBits (data);
+
+ pixel_colour = bmp.GetPixel (0, 0);
+
+ // Disregard alpha information in the test
+ pixel_colour = Color.FromArgb(red.A, pixel_colour.R, pixel_colour.G, pixel_colour.B);
+
+ Assert.AreEqual (red, pixel_colour);
+
+ data = bmp.LockBits (new Rectangle (0, 0, 1, 1), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
+
+ Marshal.WriteInt32 (data.Scan0, blue.ToArgb ());
+
+ bmp.UnlockBits (data);
+
+ pixel_colour = bmp.GetPixel (0, 0);
+
+ // Disregard alpha information in the test
+ pixel_colour = Color.FromArgb(blue.A, pixel_colour.R, pixel_colour.G, pixel_colour.B);
+
+ Assert.AreEqual (blue, pixel_colour);
+ }
+
+ using (Bitmap bmp = new Bitmap(1, 1, PixelFormat.Format32bppArgb))
+ {
+ bmp.SetPixel (0, 0, red);
+
+ data = bmp.LockBits (new Rectangle (0, 0, 1, 1), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
+
+ int r, g, b;
+
+ b = Marshal.ReadByte (data.Scan0, 0);
+ g = Marshal.ReadByte (data.Scan0, 1);
+ r = Marshal.ReadByte (data.Scan0, 2);
+ pixel_colour = Color.FromArgb (red.A, r, g, b);
+
+ Assert.AreEqual (red, pixel_colour);
+
+ Marshal.WriteByte (data.Scan0, 0, blue.B);
+ Marshal.WriteByte (data.Scan0, 1, blue.G);
+ Marshal.WriteByte (data.Scan0, 2, blue.R);
+
+ bmp.UnlockBits (data);
+
+ pixel_colour = bmp.GetPixel (0, 0);
+
+ // Disregard alpha information in the test
+ pixel_colour = Color.FromArgb(red.A, pixel_colour.R, pixel_colour.G, pixel_colour.B);
+
+ Assert.AreEqual (red, bmp.GetPixel (0, 0));
+
+ data = bmp.LockBits (new Rectangle (0, 0, 1, 1), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
+
+ Marshal.WriteByte (data.Scan0, 0, blue.B);
+ Marshal.WriteByte (data.Scan0, 1, blue.G);
+ Marshal.WriteByte (data.Scan0, 2, blue.R);
+
+ bmp.UnlockBits(data);
+
+ pixel_colour = bmp.GetPixel (0, 0);
+
+ // Disregard alpha information in the test
+ pixel_colour = Color.FromArgb(blue.A, pixel_colour.R, pixel_colour.G, pixel_colour.B);
+
+ Assert.AreEqual (blue, bmp.GetPixel (0, 0));
+ }
+ }
+#endif
+ [Test]
+ public void DefaultFormat1 ()
+ {
+ using (Bitmap bmp = new Bitmap (20, 20)) {
+ Assert.AreEqual (ImageFormat.MemoryBmp, bmp.RawFormat);
+ }
+ }
+
+ [Test]
+ public void DefaultFormat2 ()
+ {
+ string filename = Path.GetTempFileName ();
+ using (Bitmap bmp = new Bitmap (20, 20)) {
+ bmp.Save (filename);
+ }
+
+ using (Bitmap other = new Bitmap (filename)) {
+ Assert.AreEqual (ImageFormat.Png, other.RawFormat);
+ }
+ File.Delete (filename);
+ }
+
+ [Test]
+ public void BmpDataStride1 ()
+ {
+ Bitmap bmp = new Bitmap (184, 184, PixelFormat.Format1bppIndexed);
+ BitmapData data = bmp.LockBits (new Rectangle (0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadWrite, PixelFormat.Format1bppIndexed);
+ try {
+ Assert.AreEqual (24, data.Stride);
+ } finally {
+ bmp.UnlockBits (data);
+ bmp.Dispose ();
+ }
+ }
}
}
+
projects / mono.git / blobdiff