dlls/msvfw32/tests/drawdib.c

   1 /*
   2  * Copyright 2014 Akihiro Sagawa
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define WIN32_LEAN_AND_MEAN
  20
  21 #include <windows.h>
  22 #include <vfw.h>
  23 #include <wincrypt.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "wine/test.h"
  28
  29 #define WIDTH  16
  30 #define HEIGHT 12
  31
  32 static HCRYPTPROV crypt_prov;
  33
  34 static inline DWORD get_stride(const BITMAPINFO *bmi)
  35 {
  36     return ((bmi->bmiHeader.biBitCount * bmi->bmiHeader.biWidth + 31) >> 3) & ~3;
  37 }
  38
  39 static inline DWORD get_dib_size(const BITMAPINFO *bmi)
  40 {
  41     return get_stride(bmi) * abs(bmi->bmiHeader.biHeight);
  42 }
  43
  44 static char *hash_dib(const BITMAPINFO *bmi, const void *bits)
  45 {
  46     DWORD dib_size = get_dib_size(bmi);
  47     HCRYPTHASH hash;
  48     char *buf;
  49     BYTE hash_buf[20];
  50     DWORD hash_size = sizeof(hash_buf);
  51     int i;
  52     static const char *hex = "0123456789abcdef";
  53
  54     if(!crypt_prov) return NULL;
  55
  56     if(!CryptCreateHash(crypt_prov, CALG_SHA1, 0, 0, &hash)) return NULL;
  57
  58     CryptHashData(hash, bits, dib_size, 0);
  59
  60     CryptGetHashParam(hash, HP_HASHVAL, NULL, &hash_size, 0);
  61     if(hash_size != sizeof(hash_buf)) return NULL;
  62
  63     CryptGetHashParam(hash, HP_HASHVAL, hash_buf, &hash_size, 0);
  64     CryptDestroyHash(hash);
  65
  66     buf = HeapAlloc(GetProcessHeap(), 0, hash_size * 2 + 1);
  67
  68     for(i = 0; i < hash_size; i++)
  69     {
  70         buf[i * 2] = hex[hash_buf[i] >> 4];
  71         buf[i * 2 + 1] = hex[hash_buf[i] & 0xf];
  72     }
  73     buf[i * 2] = '\0';
  74
  75     return buf;
  76 }
  77
  78 static void init_bmi(BITMAPINFO *bmi, LONG width, LONG height, DWORD size)
  79 {
  80     memset(bmi, 0, sizeof(*bmi));
  81     bmi->bmiHeader.biSize        = sizeof(BITMAPINFOHEADER);
  82     bmi->bmiHeader.biWidth       = width;
  83     bmi->bmiHeader.biHeight      = height;
  84     bmi->bmiHeader.biPlanes      = 1;
  85     bmi->bmiHeader.biBitCount    = 32;
  86     bmi->bmiHeader.biCompression = BI_RGB;
  87     bmi->bmiHeader.biSizeImage   = size;
  88 }
  89
  90 static void test_DrawDib_sizeimage(void)
  91 {
  92     const struct {
  93         LONG width, height;
  94         DWORD size;
  95         char hash[41];
  96     } test_data[] = {
  97         /* [0] correct size */
  98         {  WIDTH,   HEIGHT, WIDTH * HEIGHT * sizeof(RGBQUAD), "bc943d5ab024b8b0118d0a80aa283055d39942b8" },
  99         /* [1] zero size */
 100         {  WIDTH,   HEIGHT, 0, "bc943d5ab024b8b0118d0a80aa283055d39942b8" },
 101         /* error patterns */
 102         {  WIDTH,  -HEIGHT, 0, "" },
 103         { -WIDTH,   HEIGHT, 0, "" },
 104         { -WIDTH,  -HEIGHT, 0, "" },
 105         {      0,        0, 0, "" },
 106         {      0,   HEIGHT, 0, "" },
 107         {  WIDTH,        0, 0, "" },
 108     };
 109     HDC hdc;
 110     DWORD src_dib_size, dst_dib_size;
 111     BOOL r;
 112     HBITMAP dib;
 113     BITMAPINFO src_info, dst_info;
 114     RGBQUAD *src_bits = NULL, *dst_bits;
 115     HDRAWDIB hdd;
 116     unsigned int i;
 117
 118     hdc = CreateCompatibleDC(NULL);
 119
 120     init_bmi(&dst_info, WIDTH, HEIGHT, 0);
 121     dib = CreateDIBSection(NULL, &dst_info, DIB_RGB_COLORS, (void **)&dst_bits, NULL, 0);
 122     dst_dib_size = get_dib_size(&dst_info);
 123     ok(dib != NULL, "CreateDIBSection failed\n");
 124     SelectObject(hdc, dib);
 125
 126     init_bmi(&src_info, WIDTH, HEIGHT, 0);
 127     src_dib_size = get_dib_size(&src_info);
 128     src_bits = HeapAlloc(GetProcessHeap(), 0, src_dib_size);
 129     ok(src_bits != NULL, "Can't allocate memory\n");
 130     memset(src_bits, 0x88, src_dib_size);
 131
 132     hdd = DrawDibOpen();
 133     ok(hdd != NULL, "DrawDibOpen failed\n");
 134
 135     for (i = 0; i < sizeof(test_data)/sizeof(test_data[0]); i++) {
 136         char *hash;
 137         memset(dst_bits, 0xff, dst_dib_size);
 138         init_bmi(&src_info, test_data[i].width, test_data[i].height, test_data[i].size);
 139         r = DrawDibDraw(hdd, hdc,
 140                         0, 0, -1, -1, &src_info.bmiHeader, src_bits,
 141                         0, 0, test_data[i].width, test_data[i].height, 0);
 142         if (test_data[i].hash[0])
 143             ok(r, "[%u] DrawDibDraw failed, expected success\n", i);
 144         else
 145             ok(!r, "[%u] DrawDibDraw succeeded, expected failed\n", i);
 146         if (!r || !test_data[i].hash[0])
 147             continue;
 148
 149         hash = hash_dib(&dst_info, dst_bits);
 150         if (!hash) {
 151             win_skip("This platform doesn't support SHA-1 hash\n");
 152             continue;
 153         }
 154         ok(strcmp(hash, test_data[i].hash) == 0,
 155            "[%u] got %s, expected %s\n",
 156            i, hash, test_data[i].hash);
 157         HeapFree(GetProcessHeap(), 0, hash);
 158     }
 159
 160     r = DrawDibClose(hdd);
 161     ok(r, "DrawDibClose failed\n");
 162
 163     HeapFree(GetProcessHeap(), 0, src_bits);
 164
 165     DeleteDC(hdc);
 166 }
 167
 168 START_TEST(drawdib)
 169 {
 170     CryptAcquireContextW(&crypt_prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
 171     test_DrawDib_sizeimage();
 172     CryptReleaseContext(crypt_prov, 0);
 173 }