From: Ged Murphy <gedmurphy@reactos.org>
Date: Mon, 24 Sep 2007 15:09:15 +0000 (+0000)
Subject: Add basic tests for NtGdiGetDIBitsInternal
X-Git-Tag: backups/win32k-stable@33466~226
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=9be6565d51bd3e2a0b3fe2678e52c295d27876cc

Add basic tests for NtGdiGetDIBitsInternal

svn path=/trunk/; revision=29191
---

diff --git a/rostests/apitests/w32knapi/ntgdi/NtGdiGetDIBits.c b/rostests/apitests/w32knapi/ntgdi/NtGdiGetDIBits.c
new file mode 100644
index 00000000000..e1fc9488f5d
--- /dev/null
+++ b/rostests/apitests/w32knapi/ntgdi/NtGdiGetDIBits.c
@@ -0,0 +1,71 @@
+/* taken from gdi32, bitmap.c */
+UINT
+FASTCALL
+DIB_BitmapMaxBitsSize( PBITMAPINFO Info, UINT ScanLines )
+{
+    UINT MaxBits = 0;
+    
+    if (Info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
+    {
+       PBITMAPCOREHEADER Core = (PBITMAPCOREHEADER)Info;
+       MaxBits = Core->bcBitCount * Core->bcPlanes * Core->bcWidth;
+    }
+    else  /* assume BITMAPINFOHEADER */
+    {
+       if ((Info->bmiHeader.biCompression) && (Info->bmiHeader.biCompression != BI_BITFIELDS))
+           return Info->bmiHeader.biSizeImage;
+    // Planes are over looked by Yuan. I guess assumed always 1.    
+       MaxBits = Info->bmiHeader.biBitCount * Info->bmiHeader.biPlanes * Info->bmiHeader.biWidth;
+    }
+    MaxBits = ((MaxBits + 31) & ~31 ) / 8; // From Yuan, ScanLineSize = (Width * bitcount + 31)/32
+    return (MaxBits * ScanLines);  // ret the full Size.
+}
+
+
+INT
+Test_NtGdiGetDIBitsInternal(PTESTINFO pti)
+{
+	HBITMAP hBitmap;
+	BITMAPINFO bi;
+	INT ScreenBpp;
+
+	HDC hDCScreen = GetDC(NULL);
+	ASSERT(hDCScreen != NULL);
+
+	hBitmap = CreateCompatibleBitmap(hDCScreen, 16, 16);
+	ASSERT(hBitmap != NULL);
+
+	SetLastError(ERROR_SUCCESS);
+	RTEST(NtGdiGetDIBitsInternal(0, 0, 0, 0, NULL, NULL, 0, 0, 0) == 0);
+	RTEST(GetLastError() == ERROR_SUCCESS);
+
+	SetLastError(ERROR_SUCCESS);
+	RTEST(NtGdiGetDIBitsInternal((HDC)2345, 0, 0, 0, NULL, NULL, 0, 0, 0) == 0);
+	RTEST(GetLastError() == ERROR_SUCCESS);
+
+	SetLastError(ERROR_SUCCESS);
+	RTEST(NtGdiGetDIBitsInternal((HDC)2345, hBitmap, 0, 0, NULL, NULL, 0, 0, 0) == 0);
+	RTEST(GetLastError() == ERROR_SUCCESS);
+
+	SetLastError(ERROR_SUCCESS);
+	RTEST(NtGdiGetDIBitsInternal((HDC)2345, hBitmap, 0, 15, NULL, &bi, 0, 0, 0) == 0);
+	RTEST(GetLastError() == ERROR_SUCCESS);
+
+	SetLastError(ERROR_SUCCESS);
+    ZeroMemory(&bi, sizeof(BITMAPINFO));
+    bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+	RTEST(NtGdiGetDIBitsInternal(hDCScreen, hBitmap, 0, 15, NULL, &bi, DIB_RGB_COLORS,
+								 DIB_BitmapMaxBitsSize(&bi, 15), 0) > 0);
+	RTEST(GetLastError() == ERROR_SUCCESS);
+
+	ScreenBpp = GetDeviceCaps(hDCScreen, BITSPIXEL);
+	RTEST(bi.bmiHeader.biWidth == 16);
+	RTEST(bi.bmiHeader.biHeight == 16);
+	RTEST(bi.bmiHeader.biBitCount == ScreenBpp);
+	RTEST(bi.bmiHeader.biSizeImage == (16 * 16) * (ScreenBpp / 8));
+
+	ReleaseDC(NULL, hDCScreen);
+	DeleteObject(hBitmap);
+
+	return APISTATUS_NORMAL;
+}
diff --git a/rostests/apitests/w32knapi/testlist.c b/rostests/apitests/w32knapi/testlist.c
index b156766c224..b0ab9b7a81e 100644
--- a/rostests/apitests/w32knapi/testlist.c
+++ b/rostests/apitests/w32knapi/testlist.c
@@ -17,6 +17,7 @@
 #include "ntgdi/NtGdiGetRandomRgn.c"
 #include "ntgdi/NtGdiSetBitmapBits.c"
 //#include "ntgdi/NtGdiSTROBJ_vEnumStart.c"
+#include "ntgdi/NtGdiGetDIBits.c"
 
 #include "ntuser/NtUserCountClipboardFormats.c"
 
@@ -40,6 +41,7 @@ TESTENTRY TestList[] =
 	{ L"NtGdiGetRandomRgn", Test_NtGdiGetRandomRgn },
 	{ L"NtGdiSetBitmapBits", Test_NtGdiSetBitmapBits },
 //	{ L"NtGdiSTROBJ_vEnumStart", Test_NtGdiSTROBJ_vEnumStart },
+	{ L"NtGdiGetDIBitsInternal", Test_NtGdiGetDIBitsInternal },
 
 	/* ntuser */
 	{ L"NtUserCountClipboardFormats", Test_NtUserCountClipboardFormats }