gdi: New tests for GetDIBits.

New tests that check if GetDIBits works with a bitmap that is selected
in a device context (works in Windows, should fail according to the
API documentation)
This commit is contained in:
Michael Kaufmann 2006-06-05 23:18:56 +02:00 committed by Alexandre Julliard
parent 5ebf4f5b4e
commit 1660c504ca
1 changed files with 232 additions and 0 deletions

View File

@ -21,6 +21,7 @@
#include <stdarg.h>
#include <assert.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
@ -1019,6 +1020,232 @@ static void test_bmBits(void)
DeleteObject(hbmp);
}
static void test_GetDIBits_selected_DIB(UINT bpp)
{
HBITMAP dib;
BITMAPINFO * info;
BITMAPINFO * info2;
void * bits;
void * bits2;
UINT dib_size;
HDC dib_dc, dc;
HBITMAP old_bmp;
BOOL equalContents;
UINT i;
int res;
/* Create a DIB section with a color table */
info = (BITMAPINFO *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD));
info2 = (BITMAPINFO *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD));
assert(info);
assert(info2);
info->bmiHeader.biSize = sizeof(info->bmiHeader);
/* Choose width and height such that the row length (in bytes)
is a multiple of 4 (makes things easier) */
info->bmiHeader.biWidth = 32;
info->bmiHeader.biHeight = 32;
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = bpp;
info->bmiHeader.biCompression = BI_RGB;
for (i=0; i < (1 << bpp); i++)
{
BYTE c = i * (1 << (8 - bpp));
info->bmiColors[i].rgbRed = c;
info->bmiColors[i].rgbGreen = c;
info->bmiColors[i].rgbBlue = c;
info->bmiColors[i].rgbReserved = 0;
}
dib = CreateDIBSection(NULL, info, DIB_RGB_COLORS, &bits, NULL, 0);
assert(dib);
dib_size = bpp * (info->bmiHeader.biWidth * info->bmiHeader.biHeight) / 8;
/* Set the bits of the DIB section */
for (i=0; i < dib_size; i++)
{
((BYTE *)bits)[i] = i % 256;
}
/* Select the DIB into a DC */
dib_dc = CreateCompatibleDC(NULL);
old_bmp = (HBITMAP) SelectObject(dib_dc, dib);
dc = CreateCompatibleDC(NULL);
bits2 = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, dib_size);
assert(bits2);
/* Copy the DIB attributes but not the color table */
memcpy(info2, info, sizeof(BITMAPINFOHEADER));
res = GetDIBits(dc, dib, 0, info->bmiHeader.biHeight, bits2, info2, DIB_RGB_COLORS);
ok(res, "GetDIBits failed\n");
/* Compare the color table and the bits */
equalContents = TRUE;
for (i=0; i < (1 << bpp); i++)
{
if ((info->bmiColors[i].rgbRed != info2->bmiColors[i].rgbRed)
|| (info->bmiColors[i].rgbGreen != info2->bmiColors[i].rgbGreen)
|| (info->bmiColors[i].rgbBlue != info2->bmiColors[i].rgbBlue)
|| (info->bmiColors[i].rgbReserved != info2->bmiColors[i].rgbReserved))
{
equalContents = FALSE;
break;
}
}
todo_wine
{
ok(equalContents, "GetDIBits with DIB selected in DC: Invalid DIB color table\n");
}
equalContents = TRUE;
for (i=0; i < dib_size / sizeof(DWORD); i++)
{
if (((DWORD *)bits)[i] != ((DWORD *)bits2)[i])
{
equalContents = FALSE;
break;
}
}
todo_wine
{
ok(equalContents, "GetDIBits with DIB selected in DC: Invalid DIB bits\n");
}
HeapFree(GetProcessHeap(), 0, bits2);
DeleteDC(dc);
SelectObject(dib_dc, old_bmp);
DeleteDC(dib_dc);
DeleteObject(dib);
HeapFree(GetProcessHeap(), 0, info2);
HeapFree(GetProcessHeap(), 0, info);
}
static void test_GetDIBits_selected_DDB(BOOL monochrome)
{
HBITMAP ddb;
BITMAPINFO * info;
BITMAPINFO * info2;
void * bits;
void * bits2;
HDC ddb_dc, dc;
HBITMAP old_bmp;
BOOL equalContents;
UINT width, height;
UINT bpp;
UINT i, j;
int res;
width = height = 16;
/* Create a DDB (device-dependent bitmap) */
if (monochrome)
{
bpp = 1;
ddb = CreateBitmap(width, height, 1, 1, NULL);
}
else
{
HDC screen_dc = GetDC(NULL);
bpp = GetDeviceCaps(screen_dc, BITSPIXEL) * GetDeviceCaps(screen_dc, PLANES);
ddb = CreateCompatibleBitmap(screen_dc, width, height);
ReleaseDC(NULL, screen_dc);
}
/* Set the pixels */
ddb_dc = CreateCompatibleDC(NULL);
old_bmp = (HBITMAP) SelectObject(ddb_dc, ddb);
for (i = 0; i < width; i++)
{
for (j=0; j < height; j++)
{
BYTE c = (i * width + j) % 256;
SetPixelV(ddb_dc, i, j, RGB(c, c, c));
}
}
SelectObject(ddb_dc, old_bmp);
info = (BITMAPINFO *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
info2 = (BITMAPINFO *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
assert(info);
assert(info2);
info->bmiHeader.biSize = sizeof(info->bmiHeader);
info->bmiHeader.biWidth = width;
info->bmiHeader.biHeight = height;
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = bpp;
info->bmiHeader.biCompression = BI_RGB;
dc = CreateCompatibleDC(NULL);
/* Fill in biSizeImage */
GetDIBits(dc, ddb, 0, height, NULL, info, DIB_RGB_COLORS);
ok(info->bmiHeader.biSizeImage != 0, "GetDIBits failed to get the DIB attributes\n");
bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage);
bits2 = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage);
assert(bits);
assert(bits2);
/* Get the bits */
res = GetDIBits(dc, ddb, 0, height, bits, info, DIB_RGB_COLORS);
ok(res, "GetDIBits failed\n");
/* Copy the DIB attributes but not the color table */
memcpy(info2, info, sizeof(BITMAPINFOHEADER));
/* Select the DDB into another DC */
old_bmp = (HBITMAP) SelectObject(ddb_dc, ddb);
/* Get the bits */
res = GetDIBits(dc, ddb, 0, height, bits2, info2, DIB_RGB_COLORS);
ok(res, "GetDIBits failed\n");
/* Compare the color table and the bits */
if (bpp <= 8)
{
equalContents = TRUE;
for (i=0; i < (1 << bpp); i++)
{
if ((info->bmiColors[i].rgbRed != info2->bmiColors[i].rgbRed)
|| (info->bmiColors[i].rgbGreen != info2->bmiColors[i].rgbGreen)
|| (info->bmiColors[i].rgbBlue != info2->bmiColors[i].rgbBlue)
|| (info->bmiColors[i].rgbReserved != info2->bmiColors[i].rgbReserved))
{
equalContents = FALSE;
break;
}
}
ok(equalContents, "GetDIBits with DDB selected in DC: Got a different color table\n");
}
equalContents = TRUE;
for (i=0; i < info->bmiHeader.biSizeImage / sizeof(DWORD); i++)
{
if (((DWORD *)bits)[i] != ((DWORD *)bits2)[i])
{
equalContents = FALSE;
}
}
ok(equalContents, "GetDIBits with DDB selected in DC: Got different DIB bits\n");
HeapFree(GetProcessHeap(), 0, bits2);
HeapFree(GetProcessHeap(), 0, bits);
DeleteDC(dc);
SelectObject(ddb_dc, old_bmp);
DeleteDC(ddb_dc);
DeleteObject(ddb);
HeapFree(GetProcessHeap(), 0, info2);
HeapFree(GetProcessHeap(), 0, info);
}
START_TEST(bitmap)
{
@ -1029,4 +1256,9 @@ START_TEST(bitmap)
test_mono_dibsection();
test_bitmap();
test_bmBits();
test_GetDIBits_selected_DIB(1);
test_GetDIBits_selected_DIB(4);
test_GetDIBits_selected_DIB(8);
test_GetDIBits_selected_DDB(TRUE);
test_GetDIBits_selected_DDB(FALSE);
}