gdi32/tests: Start of a framework for writing dib driver tests.

dlls/gdi32/tests/Makefile.in

 TESTDLL   = gdi32.dll
-IMPORTS   = user32 gdi32
+IMPORTS   = user32 gdi32 advapi32
 
 C_SRCS = \
 	bitmap.c \
 	brush.c \
 	clipping.c \
 	dc.c \
+	dib.c \
 	font.c \
 	gdiobj.c \
 	generated.c \

dlls/gdi32/tests/dib.c

+/*
+ * DIB driver tests.
+ *
+ * Copyright 2011 Huw Davies
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "wingdi.h"
+#include "winuser.h"
+#include "wincrypt.h"
+
+#include "wine/test.h"
+
+static HCRYPTPROV crypt_prov;
+
+static const char *sha1_graphics_a8r8g8b8[] =
+{
+    "a3cadd34d95d3d5cc23344f69aab1c2e55935fcf",
+    NULL
+};
+
+static inline DWORD get_stride(BITMAPINFO *bmi)
+{
+    return ((bmi->bmiHeader.biBitCount * bmi->bmiHeader.biWidth + 31) >> 3) & ~3;
+}
+
+static inline DWORD get_dib_size(BITMAPINFO *bmi)
+{
+    return get_stride(bmi) * abs(bmi->bmiHeader.biHeight);
+}
+
+static char *hash_dib(BITMAPINFO *bmi, void *bits)
+{
+    DWORD dib_size = get_dib_size(bmi);
+    HCRYPTHASH hash;
+    char *buf;
+    BYTE hash_buf[20];
+    DWORD hash_size = sizeof(hash_buf);
+    int i;
+    static const char *hex = "0123456789abcdef";
+
+    if(!crypt_prov) return NULL;
+
+    if(!CryptCreateHash(crypt_prov, CALG_SHA1, 0, 0, &hash)) return NULL;
+
+    CryptHashData(hash, bits, dib_size, 0);
+
+    CryptGetHashParam(hash, HP_HASHVAL, NULL, &hash_size, 0);
+    if(hash_size != sizeof(hash_buf)) return NULL;
+
+    CryptGetHashParam(hash, HP_HASHVAL, hash_buf, &hash_size, 0);
+    CryptDestroyHash(hash);
+
+    buf = HeapAlloc(GetProcessHeap(), 0, hash_size * 2 + 1);
+
+    for(i = 0; i < hash_size; i++)
+    {
+        buf[i * 2] = hex[hash_buf[i] >> 4];
+        buf[i * 2 + 1] = hex[hash_buf[i] & 0xf];
+    }
+    buf[i * 2] = '\0';
+
+    return buf;
+}
+
+static void compare_hash(BITMAPINFO *bmi, BYTE *bits, const char ***sha1, const char *info)
+{
+    char *hash = hash_dib(bmi, bits);
+
+    if(!hash)
+    {
+        skip("SHA1 hashing unavailable on this platform\n");
+        return;
+    }
+
+    if(**sha1)
+    {
+        ok(!strcmp(hash, **sha1), "%d: %s: expected hash %s got %s\n",
+           bmi->bmiHeader.biBitCount, info, **sha1, hash);
+        (*sha1)++;
+    }
+    else trace("\"%s\",\n", hash);
+
+    HeapFree(GetProcessHeap(), 0, hash);
+}
+
+static void draw_graphics(HDC hdc, BITMAPINFO *bmi, BYTE *bits, const char ***sha1)
+{
+    DWORD dib_size = get_dib_size(bmi);
+
+    memset(bits, 0xcc, dib_size);
+    compare_hash(bmi, bits, sha1, "empty");
+}
+
+static void test_simple_graphics(void)
+{
+    char bmibuf[sizeof(BITMAPINFO) + 256 * sizeof(RGBQUAD)];
+    BITMAPINFO *bmi = (BITMAPINFO *)bmibuf;
+    HDC mem_dc;
+    BYTE *bits;
+    HBITMAP dib, orig_bm;
+    const char **sha1;
+
+    /* a8r8g8b8 */
+    trace("8888\n");
+    memset(bmi, 0, sizeof(bmibuf));
+    bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
+    bmi->bmiHeader.biHeight = 512;
+    bmi->bmiHeader.biWidth = 512;
+    bmi->bmiHeader.biBitCount = 32;
+    bmi->bmiHeader.biPlanes = 1;
+    bmi->bmiHeader.biCompression = BI_RGB;
+
+    dib = CreateDIBSection(0, bmi, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
+    ok(dib != NULL, "ret NULL\n");
+    mem_dc = CreateCompatibleDC(NULL);
+    orig_bm = SelectObject(mem_dc, dib);
+
+    sha1 = sha1_graphics_a8r8g8b8;
+    draw_graphics(mem_dc, bmi, bits, &sha1);
+
+    SelectObject(mem_dc, orig_bm);
+    DeleteObject(dib);
+    DeleteDC(mem_dc);
+}
+
+START_TEST(dib)
+{
+    CryptAcquireContextW(&crypt_prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
+
+    test_simple_graphics();
+
+    CryptReleaseContext(crypt_prov, 0);
+}