20 Feb
2021
20 Feb
'21
11:21 p.m.
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=89843bec564368a7e1b8b…
commit 89843bec564368a7e1b8b26bf47d09da3a1ad9dc
Author: Doug Lyons <douglyons(a)douglyons.com>
AuthorDate: Sat Feb 20 17:21:51 2021 -0600
Commit: GitHub <noreply(a)github.com>
CommitDate: Sun Feb 21 08:21:51 2021 +0900
[GDI32_APITEST] Add more StretchBlt Regression Tests (#3455)
Added tests for many more StretchBlt options.
Created StretchBlt regression tests for verifying most flip options.
This is preparation for my Pull Request #3458 which will implement the flip
functionality for StretchBlt.
CORE-16642
---
modules/rostests/apitests/gdi32/StretchBlt.c | 833 +++++++++++++++++++++++++--
1 file changed, 797 insertions(+), 36 deletions(-)
diff --git a/modules/rostests/apitests/gdi32/StretchBlt.c
b/modules/rostests/apitests/gdi32/StretchBlt.c
index c72f9e220f1..5db1713beb6 100644
--- a/modules/rostests/apitests/gdi32/StretchBlt.c
+++ b/modules/rostests/apitests/gdi32/StretchBlt.c
@@ -2,8 +2,8 @@
* PROJECT: ReactOS API tests
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
* PURPOSE: Tests for the StretchBlt API
- * COPYRIGHT: Copyright 2020 Doug Lyons (douglyons at douglyons dot com)
- * Most Code copied and modified from Wine gdi32:bitmap test.
+ * COPYRIGHT: Copyright 2020, 2021 Doug Lyons (douglyons at douglyons dot com)
+ * Some Code copied and modified from Wine gdi32:bitmap test.
*/
#include <stdarg.h>
@@ -18,91 +18,852 @@
#include "wingdi.h"
#include "winuser.h"
#include "wine/test.h"
+#include <debug.h>
+
+/* Notes on using the StretchBlt function's general flip ability.
+ *
+ * The critical values for flipping are the signs of the values for DestWidth,
DestHeight, SourceWidth and SourceHeight.
+ * If we assign a '0' to values having a negative sign and a '1' to
values having a positive sign these can be CaseWXYZ's.
+ * Where the W, X, Y, and Z are replaced with the '0's and '1's
representing the signs of the values in sequential order.
+ *
+ * If we take the normal StretchBlt function's copy/scaling with no flips, the
generalized code can be represented as follows:
+ *
+ * StretchBlt(DestDC, DestX, DestY, (DestWidth), (DestHeight),
+ * SourceDC, SourceX, SourceY, (SourceWidth), (SourceHeight), SRCCOPY); //
Case1111 (15) (all positive signs)
+ *
+ * For Horizontal flipping then the generalized form on the Destination side can be
represented as follows:
+ *
+ * StretchBlt(DestDC, DestX + DestWidth - 1, DestY, -DestWidth, DestHeight,
+ * SourceDC, SourceX, SourceY, SourceWidth, SourceHeight,
SRCCOPY); // Case 0111 (7)
+ *
+ * and for Horizontal flipping the generalized form on the Source side can be represented
as follows:
+ *
+ * StretchBlt(DestDC, DestX, DestY, DestWidth, DestHeight,
+ * SourceDC, SourceX + SourceWidth - 1, SourceY, -SourceWidth, SourceHeight,
SRCCOPY); // Case 1101 (13)
+ *
+ * I believe that the "- 1" is used because we are moving from the rightmost
position back to the 0th position.
+ *
+ * But there are three "special" cases where no flip is done (there is a
copy/scale only) and the "-1" is not used.
+ * These are as follows:
+ * 1)
+ * StretchBlt(DestDC, DestX + DestWidth, DestY, -DestWidth, DestHeight, //
Both Widths negative
+ * SourceDC, SourceX + SourceWidth, SourceY, -SourceWidth, SourceHeight,
SRCCOPY); // Case0101 (5)
+ * 2)
+ * StretchBlt(DestDC, DestX, DestY + DestHeight, DestWidth, -DestHeight, //
Both heights negative
+ * SourceDC, SourceX, SourceY + SourceHeight, SourceWidth, -SourceHeight,
SRCCOPY); // Case1010 (10)
+ * 3)
+ * StretchBlt(DestDC, DestX + DestWidth, DestY + DestHeight, -DestWidth,
-DestHeight, // widths AND heights neg
+ * SourceDC, SourceX + SourceWidth, SourceY + SourceHeight, -SourceWidth,
-SourceHeight, SRCCOPY); // Case0000 (0)
+ *
+ * I suspect that these are like this because of legacy reasons when StretchBlt did not
support so many flip options.
+ *
+ * For Vertical flipping the generalized form on the Destination side can be represented
as follows:
+ *
+ * StretchBlt(DestDC, DestX, DestY + DestHeight - 1, DestWidth, -DestHeight,
+ * SourceDC, SourceX, SourceY, SourceWidth, SourceHeight,
SRCCOPY); // Case1011 (11)
+ *
+ * and for Vertical on the Source Side as folows:
+ *
+ * StretchBlt(DestDC, DestX, DestY, DestWidth, -DestHeight,
+ * SourceDC, SourceX, SourceY + SourceHeight - 1, SourceWidth, -SourceHeight,
SRCCOPY); // Case 1010 (10)
+ */
+
+static inline int get_dib_stride( int width, int bpp )
+{
+ return ((width * bpp + 31) >> 3) & ~3;
+}
+
+static inline int get_dib_image_size( const BITMAPINFO *info )
+{
+ return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
+ * abs( info->bmiHeader.biHeight );
+}
+
+static void check_StretchBlt_stretch(HDC hdcDst, HDC hdcSrc, BITMAPINFO *dst_info, UINT32
*dstBuffer, UINT32 *srcBuffer,
+ int nXOriginDest, int nYOriginDest, int nWidthDest,
int nHeightDest,
+ int nXOriginSrc, int nYOriginSrc, int nWidthSrc, int
nHeightSrc,
+ UINT32 *expected, int line)
+{
+ int dst_size = get_dib_image_size( dst_info );
+
+ memset(dstBuffer, 0, dst_size);
+ StretchBlt(hdcDst, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest,
+ hdcSrc, nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc, SRCCOPY);
+ ok(memcmp(dstBuffer, expected, dst_size) == 0,
+ "StretchBlt \nexp { %08X, %08X, %08X, %08X } \ngot { %08X, %08X, %08X, %08X
} \n"
+ "destination { %d, %d, %d, %d } source { %d, %d, %d, %d } from line
%d\n",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3],
+ nXOriginDest, nYOriginDest, nWidthDest, nHeightDest,
+ nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc, line);
+}
+
+static void test_StretchBlt_stretch(HDC hdcDst, HDC hdcSrc, BITMAPINFO *dst_info, UINT32
*dstBuffer, UINT32 *srcBuffer,
+ int nXOriginDest, int nYOriginDest, int nWidthDest,
int nHeightDest,
+ int nXOriginSrc, int nYOriginSrc, int nWidthSrc, int
nHeightSrc,
+ UINT32 *expected, int line, BOOL SrcTopDown, BOOL
DstTopDown )
+{
+ int dst_size = get_dib_image_size( dst_info );
+
+ memset(dstBuffer, 0, dst_size);
+ StretchBlt(hdcDst, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest,
+ hdcSrc, nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc, SRCCOPY);
+ ok(memcmp(dstBuffer, expected, dst_size) == 0,
+ "Case%c%c%c%c %s - %s \nexp { %08X, %08X, %08X, %08X } \ngot { %08X, %08X,
%08X, %08X }\n"
+ "destination { %d, %d, %d, %d } source { %d, %d, %d, %d } from line
%d\n",
+ (nWidthDest < 0) ? '0' : '1', (nHeightDest < 0) ?
'0' : '1',
+ (nWidthSrc < 0) ? '0' : '1', (nHeightSrc < 0) ?
'0' : '1',
+ SrcTopDown ? "SrcTopDown" : "SrcBottomUp", DstTopDown ?
"DstTopDown" : "DstBottomUp",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3],
+ nXOriginDest, nYOriginDest, nWidthDest, nHeightDest,
+ nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc, line);
+}
static void test_StretchBlt(void)
{
HBITMAP bmpDst, bmpSrc;
- HDC hdcDst, hdcSrc;
+ HBITMAP oldDst, oldSrc;
+ HDC hdcScreen, hdcDst, hdcSrc;
UINT32 *dstBuffer, *srcBuffer;
BITMAPINFO biDst, biSrc;
UINT32 expected[256];
+ RGBQUAD colors[2];
memset(&biDst, 0, sizeof(BITMAPINFO));
-
biDst.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
- biDst.bmiHeader.biWidth = 2;
- biDst.bmiHeader.biHeight = 2; // Set our Height to positive so we are bottom-up
+ biDst.bmiHeader.biWidth = 16;
+ biDst.bmiHeader.biHeight = -16;
biDst.bmiHeader.biPlanes = 1;
- biDst.bmiHeader.biBitCount = 32; // Set our BitCount to 32 which is Full Color
+ biDst.bmiHeader.biBitCount = 32;
biDst.bmiHeader.biCompression = BI_RGB;
+ memcpy(&biSrc, &biDst, sizeof(BITMAPINFO));
+
+ hdcScreen = CreateCompatibleDC(NULL);
+ hdcDst = CreateCompatibleDC(hdcScreen);
+ hdcSrc = CreateCompatibleDC(hdcDst);
+
+ bmpDst = CreateDIBSection(hdcScreen, &biDst, DIB_RGB_COLORS,
(void**)&dstBuffer, NULL, 0);
+ oldDst = SelectObject(hdcDst, bmpDst);
+
+ bmpSrc = CreateDIBSection(hdcScreen, &biSrc, DIB_RGB_COLORS,
(void**)&srcBuffer, NULL, 0);
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+
+ /* Top-down to top-down tests */
+ srcBuffer[0] = 0xCAFED00D, srcBuffer[1] = 0xFEEDFACE;
+ srcBuffer[16] = 0xFEDCBA98, srcBuffer[17] = 0x76543210;
+
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+ expected[0] = 0xCAFED00D, expected[1] = 0xFEEDFACE;
+ expected[16] = 0xFEDCBA98, expected[17] = 0x76543210;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__);
+
+ expected[0] = 0xCAFED00D, expected[1] = 0x00000000;
+ expected[16] = 0x00000000, expected[17] = 0x00000000;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 1, 1, 0, 0, 1, 1, expected, __LINE__);
+
+ expected[0] = 0xCAFED00D, expected[1] = 0xCAFED00D;
+ expected[16] = 0xCAFED00D, expected[17] = 0xCAFED00D;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 1, 1, expected, __LINE__);
+
+ /* This is an example of the dst width (height) == 1 exception, explored below */
+ expected[0] = 0xCAFED00D, expected[1] = 0x00000000;
+ expected[16] = 0x00000000, expected[17] = 0x00000000;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 1, 1, 0, 0, 2, 2, expected, __LINE__);
+
+ expected[0] = 0xCAFED00D, expected[1] = 0x00000000;
+ expected[16] = 0x00000000, expected[17] = 0x00000000;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 1, 1, -2, -2, expected, __LINE__);
+
+ expected[0] = 0x00000000, expected[1] = 0x00000000;
+ expected[16] = 0x00000000, expected[17] = 0xCAFED00D, expected[18] = 0xFEEDFACE;
+ expected[32] = 0x00000000, expected[33] = 0xFEDCBA98, expected[34] = 0x76543210;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, 2, 2, 0, 0, 2, 2, expected, __LINE__);
+
+ /* when dst width is 1 merge src width - 1 pixels */
+ memset( srcBuffer, 0, get_dib_image_size( &biSrc ) );
+ srcBuffer[0] = 0x0000ff00, srcBuffer[1] = 0x0000f0f0, srcBuffer[2] = 0x0000cccc,
srcBuffer[3] = 0x0000aaaa;
+ srcBuffer[16] = 0xFEDCBA98, srcBuffer[17] = 0x76543210;
+
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+ expected[0] = srcBuffer[0];
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 1, 1, 0, 0, 2, 1, expected, __LINE__);
+
+ /* similarly in the vertical direction */
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+ expected[0] = srcBuffer[0];
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 1, 1, 0, 0, 1, 2, expected, __LINE__);
+
+ /* check that it's the dst size in device units that needs to be 1 */
+ SetMapMode( hdcDst, MM_ISOTROPIC );
+ SetWindowExtEx( hdcDst, 200, 200, NULL );
+ SetViewportExtEx( hdcDst, 100, 100, NULL );
+
+ SetMapMode( hdcDst, MM_TEXT );
+
+ SelectObject(hdcDst, oldDst);
+ DeleteObject(bmpDst);
+
+ /* Top-down to bottom-up tests */
+ memset( srcBuffer, 0, get_dib_image_size( &biSrc ) );
+ srcBuffer[0] = 0xCAFED00D, srcBuffer[1] = 0xFEEDFACE;
+ srcBuffer[16] = 0xFEDCBA98, srcBuffer[17] = 0x76543210;
+
+ biDst.bmiHeader.biHeight = 16;
+ bmpDst = CreateDIBSection(hdcScreen, &biDst, DIB_RGB_COLORS,
(void**)&dstBuffer, NULL, 0);
+ oldDst = SelectObject(hdcDst, bmpDst);
+
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+
+ expected[224] = 0xFEDCBA98, expected[225] = 0x76543210;
+ expected[240] = 0xCAFED00D, expected[241] = 0xFEEDFACE;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__);
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+
+ /* Bottom-up to bottom-up tests */
+ biSrc.bmiHeader.biHeight = 16;
+ bmpSrc = CreateDIBSection(hdcScreen, &biSrc, DIB_RGB_COLORS,
(void**)&srcBuffer, NULL, 0);
+ srcBuffer[224] = 0xCAFED00D, srcBuffer[225] = 0xFEEDFACE;
+ srcBuffer[240] = 0xFEDCBA98, srcBuffer[241] = 0x76543210;
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+
+ expected[224] = 0xCAFED00D, expected[225] = 0xFEEDFACE;
+ expected[240] = 0xFEDCBA98, expected[241] = 0x76543210;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__);
+
+ SelectObject(hdcDst, oldDst);
+ DeleteObject(bmpDst);
+
+ /* Bottom-up to top-down tests */
+ biDst.bmiHeader.biHeight = -16;
+ bmpDst = CreateDIBSection(hdcScreen, &biDst, DIB_RGB_COLORS,
(void**)&dstBuffer, NULL, 0);
+ oldDst = SelectObject(hdcDst, bmpDst);
- memcpy(&biSrc, &biDst, sizeof(BITMAPINFO)); // Put same Destination params
into the Source
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+ expected[0] = 0xFEDCBA98, expected[1] = 0x76543210;
+ expected[16] = 0xCAFED00D, expected[17] = 0xFEEDFACE;
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__);
- hdcDst = CreateCompatibleDC(0);
- hdcSrc = CreateCompatibleDC(0);
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+
+ biSrc.bmiHeader.biHeight = -2;
+ biSrc.bmiHeader.biBitCount = 24;
+ bmpSrc = CreateDIBSection(hdcScreen, &biSrc, DIB_RGB_COLORS,
(void**)&srcBuffer, NULL, 0);
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+
+ memset( expected, 0, get_dib_image_size( &biDst ) );
+ expected[0] = 0xFEEDFACE, expected[1] = 0xCAFED00D;
+ expected[2] = 0x76543210, expected[3] = 0xFEDCBA98;
+ memcpy(dstBuffer, expected, 4 * sizeof(*dstBuffer));
+ StretchBlt(hdcSrc, 0, 0, 4, 1, hdcDst, 0, 0, 4, 1, SRCCOPY );
+ memset(dstBuffer, 0x55, 4 * sizeof(*dstBuffer));
+ StretchBlt(hdcDst, 0, 0, 4, 1, hdcSrc, 0, 0, 4, 1, SRCCOPY );
+ expected[0] = 0x00EDFACE, expected[1] = 0x00FED00D;
+ expected[2] = 0x00543210, expected[3] = 0x00DCBA98;
+ ok(!memcmp(dstBuffer, expected, 16),
+ "StretchBlt expected { %08X, %08X, %08X, %08X } got { %08X, %08X, %08X, %08X
}\n",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3] );
+
+ expected[0] = 0xFEEDFACE, expected[1] = 0xCAFED00D;
+ expected[2] = 0x76543210, expected[3] = 0xFEDCBA98;
+ memcpy(srcBuffer, expected, 4 * sizeof(*dstBuffer));
+ memset(dstBuffer, 0x55, 4 * sizeof(*dstBuffer));
+ StretchBlt(hdcDst, 0, 0, 4, 1, hdcSrc, 0, 0, 4, 1, SRCCOPY );
+ expected[0] = 0x00EDFACE, expected[1] = 0x00D00DFE;
+ expected[2] = 0x0010CAFE, expected[3] = 0x00765432;
+ ok(!memcmp(dstBuffer, expected, 16),
+ "StretchBlt expected { %08X, %08X, %08X, %08X } got { %08X, %08X, %08X, %08X
}\n",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3] );
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+
+ biSrc.bmiHeader.biBitCount = 1;
+ bmpSrc = CreateDIBSection(hdcScreen, &biSrc, DIB_RGB_COLORS,
(void**)&srcBuffer, NULL, 0);
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+ *((DWORD *)colors + 0) = 0x123456;
+ *((DWORD *)colors + 1) = 0x335577;
+ SetDIBColorTable( hdcSrc, 0, 2, colors );
+ srcBuffer[0] = 0x55555555;
+ memset(dstBuffer, 0xcc, 4 * sizeof(*dstBuffer));
+ SetTextColor( hdcDst, 0 );
+ SetBkColor( hdcDst, 0 );
+ StretchBlt(hdcDst, 0, 0, 4, 1, hdcSrc, 0, 0, 4, 1, SRCCOPY );
+ expected[0] = expected[2] = 0x00123456;
+ expected[1] = expected[3] = 0x00335577;
+ ok(!memcmp(dstBuffer, expected, 16),
+ "StretchBlt expected { %08X, %08X, %08X, %08X } got { %08X, %08X, %08X, %08X
}\n",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3] );
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+
+ bmpSrc = CreateBitmap( 16, 16, 1, 1, 0 );
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+ SetPixel( hdcSrc, 0, 0, 0 );
+ SetPixel( hdcSrc, 1, 0, 0xffffff );
+ SetPixel( hdcSrc, 2, 0, 0xffffff );
+ SetPixel( hdcSrc, 3, 0, 0 );
+ memset(dstBuffer, 0xcc, 4 * sizeof(*dstBuffer));
+ SetTextColor(hdcDst, RGB(0x22, 0x44, 0x66));
+ SetBkColor(hdcDst, RGB(0x65, 0x43, 0x21));
+ StretchBlt(hdcDst, 0, 0, 4, 1, hdcSrc, 0, 0, 4, 1, SRCCOPY );
+ expected[0] = expected[3] = 0x00224466;
+ expected[1] = expected[2] = 0x00654321;
+ ok(!memcmp(dstBuffer, expected, 16),
+ "StretchBlt expected { %08X, %08X, %08X, %08X } got { %08X, %08X, %08X, %08X
}\n",
+ expected[0], expected[1], expected[2], expected[3],
+ dstBuffer[0], dstBuffer[1], dstBuffer[2], dstBuffer[3] );
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+ SelectObject(hdcDst, oldDst);
+ DeleteObject(bmpDst);
+
+ memset(&biDst, 0, sizeof(BITMAPINFO)); // Clear our Bitmap to to all
zeroes
+
+ biDst.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); // Set our Size to the header
size
+ biDst.bmiHeader.biWidth = 2; // Set our Width to 2
(left-to-right)
+ biDst.bmiHeader.biHeight = -2; // Set our Height to -2
that's negative for top-down
+ biDst.bmiHeader.biPlanes = 1; // Set out planes to 1 (1
required by Windows)
+ biDst.bmiHeader.biBitCount = 32; // Set out BitCount to 32 (Full
Color)
+ biDst.bmiHeader.biCompression = BI_RGB; // Set our Compression to BI_RBG
(uncompressed)
+
+ memcpy(&biSrc, &biDst, sizeof(BITMAPINFO)); // Put same Destination
params into the Source
bmpSrc = CreateDIBSection(hdcSrc, &biSrc, DIB_RGB_COLORS, (void**)&srcBuffer,
NULL, 0);
- SelectObject(hdcSrc, bmpSrc);
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
bmpDst = CreateDIBSection(hdcDst, &biDst, DIB_RGB_COLORS, (void**)&dstBuffer,
NULL, 0);
- SelectObject(hdcDst, bmpDst);
+ oldDst = SelectObject(hdcDst, bmpDst);
+
+ srcBuffer[0] = 0x000000FF; // BLUE
+ srcBuffer[1] = 0x0000FF00; // GREEN
+ srcBuffer[2] = 0x00FF0000; // RED
+ srcBuffer[3] = 0xFF000000; // ALPHA (Opacity)
+
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
- srcBuffer[0] = 0x000000FF; // BLUE - stored beginning bottom left
- srcBuffer[1] = 0x0000FF00; // GREEN
- srcBuffer[2] = 0x00FF0000; // RED
- srcBuffer[3] = 0xFF000000; // BLACK - 0xFF for alpha channel is easy to recognize
when printed in hex format
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__); // Case 1111
(15) - No flip. Just copy.
+
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 1, 2, -2, expected, __LINE__); // Case 1110
(14) - Vertical flip.
- /* Flip Left to Right on Source */
- StretchBlt(hdcDst, 0, 0, 2, 2, hdcSrc, 1, 0, -2, 2, SRCCOPY);
expected[0] = 0x0000FF00;
expected[1] = 0x000000FF;
expected[2] = 0xFF000000;
expected[3] = 0x00FF0000;
- ok(expected[1] == dstBuffer[1], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[1], dstBuffer[1]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 1, 0, -2, 2, expected, __LINE__); // Case 1101
(13) - Horizontal flip.
+
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
- ok(expected[3] == dstBuffer[3], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[3], dstBuffer[3]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 1, 1, -2, -2, expected, __LINE__); // Case 1100
(12) - Both flip.
- /* Flip Top to Bottom on Source */
- StretchBlt(hdcDst, 0, 0, 2, 2, hdcSrc, 0, 1, 2, -2, SRCCOPY);
expected[0] = 0x00FF0000;
expected[1] = 0xFF000000;
expected[2] = 0x000000FF;
expected[3] = 0x0000FF00;
- ok(expected[0] == dstBuffer[0], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[0], dstBuffer[0]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 0, 0, 2, 2, expected, __LINE__); // Case 1011
(11) - Vertical Flip.
+
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
- ok(expected[1] == dstBuffer[1], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[1], dstBuffer[1]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 2, 2, -2, 0, 2, 2, -2, expected, __LINE__); // Case 1010
(10) - No Flip. Special Case.
- /* Flip Left to Right and Top to Bottom on Source */
- StretchBlt(hdcDst, 0, 0, 2, 2, hdcSrc, 1, 1, -2, -2, SRCCOPY);
expected[0] = 0xFF000000;
expected[1] = 0x00FF0000;
expected[2] = 0x0000FF00;
expected[3] = 0x000000FF;
- ok(expected[1] == dstBuffer[1], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[1], dstBuffer[1]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 1, 0, -2, 2, expected, __LINE__); // Case 1001
(9) - Both Flip.
+
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 1, 1, -2, -2, expected, __LINE__); // Case 1000
(8) - Horizontal Flip.
+
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 0, 0, 2, 2, expected, __LINE__); // Case 0111
(7) - Horizontal Flip.
- /* Flip Left to Right and Top to Bottom on both Source and Destination */
- StretchBlt(hdcDst, 1, 1, -2, -2, hdcSrc, 1, 1, -2, -2, SRCCOPY);
expected[0] = 0xFF000000;
expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 0, 1, 2, -2, expected, __LINE__); // Case 0110
(6) - Both Flip.
+
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 2, 0, -2, 2, 2, 0, -2, 2, expected, __LINE__); // Case 0101
(5) - No Flip. Special Case.
+
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 1, 1, -2, -2, expected, __LINE__); // Case 0100
(4) - Vertical Flip.
+
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
expected[3] = 0x000000FF;
- ok(expected[1] == dstBuffer[1], "StretchBlt expected { %08X } got { %08X
}\n",
- expected[1], dstBuffer[1]);
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 0, 0, 2, 2, expected, __LINE__); // Case 0011
(3) - Both Flip.
+
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 0, 1, 2, -2, expected, __LINE__); // Case 0010
(2) - Horizontal Flip.
+
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 1, 0, -2, 2, expected, __LINE__); // Case 0001
(1) - Vertical Flip.
+
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+
+ check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 2, 2, -2, -2, 2, 2, -2, -2, expected, __LINE__); // Case
0000 (0) - No Flip. Special Case.
DeleteDC(hdcSrc);
+
+ SelectObject(hdcDst, oldDst);
+ DeleteObject(bmpDst);
DeleteDC(hdcDst);
+
+ DeleteDC(hdcScreen);
}
+static void test_StretchBlt_TopDownOptions(BOOL SrcTopDown, BOOL DstTopDown)
+{
+ HBITMAP bmpDst, bmpSrc;
+ HBITMAP oldDst, oldSrc;
+ HDC hdcScreen, hdcDst, hdcSrc;
+ UINT32 *dstBuffer, *srcBuffer;
+ BITMAPINFO biDst, biSrc;
+ UINT32 expected[256];
+
+ memset(&biDst, 0, sizeof(BITMAPINFO));
+
+ biDst.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ biDst.bmiHeader.biWidth = 2;
+ biDst.bmiHeader.biHeight = 2;
+ biDst.bmiHeader.biPlanes = 1;
+ biDst.bmiHeader.biBitCount = 32;
+ biDst.bmiHeader.biCompression = BI_RGB;
+ memcpy(&biSrc, &biDst, sizeof(BITMAPINFO));
+
+ if (!SrcTopDown && !DstTopDown)
+ {
+ biSrc.bmiHeader.biHeight = -2; // Converts Source bitmap to top
down
+ biDst.bmiHeader.biHeight = -2; // Converts Destination bitmap to
top down
+ }
+
+ if (SrcTopDown)
+ {
+ biSrc.bmiHeader.biHeight = -2; // Converts Source bitmap to top
down
+ }
+
+ if (DstTopDown)
+ {
+ biDst.bmiHeader.biHeight = -2; // Converts Destination bitmap to
top down
+ }
+
+ hdcScreen = CreateCompatibleDC(NULL);
+ hdcDst = CreateCompatibleDC(hdcScreen);
+ hdcSrc = CreateCompatibleDC(hdcDst);
+
+ bmpSrc = CreateDIBSection(hdcScreen, &biSrc, DIB_RGB_COLORS,
(void**)&srcBuffer, NULL, 0);
+ oldSrc = SelectObject(hdcSrc, bmpSrc);
+ bmpDst = CreateDIBSection(hdcScreen, &biDst, DIB_RGB_COLORS,
(void**)&dstBuffer, NULL, 0);
+ oldDst = SelectObject(hdcDst, bmpDst);
+
+ srcBuffer[0] = 0x000000FF; // BLUE
+ srcBuffer[1] = 0x0000FF00; // GREEN
+ srcBuffer[2] = 0x00FF0000; // RED
+ srcBuffer[3] = 0xFF000000; // ALPHA (Opacity)
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+ else
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 0, 2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1111 (15) - No flip. Just copy.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+ else
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 0, 1, 2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1110 (14) - Vertical flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+ else
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 1, 0, -2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1101 (13) - Horizontal flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+ else
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 0, 2, 2, 1, 1, -2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1100 (12) - Both flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+ else
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 0, 0, 2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1011 (11) - Vertical Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+ else
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 2, 2, -2, 0, 2, 2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1010 (10) - No Flip. Special Case.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+ else
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 1, 0, -2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1001 (9) - Both Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+ else
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 0, 1, 2, -2, 1, 1, -2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 1000 (8) - Horizontal Flip
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+ else
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 0, 0, 2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0111 (7) - Horizontal Flip
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+ else
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 0, 1, 2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0110 (6) - Both Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+ else
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 2, 0, -2, 2, 2, 0, -2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0101 (5) - No Flip. Special Case.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+ else
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 0, -2, 2, 1, 1, -2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0100 (4) - Vertical Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+ else
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 0, 0, 2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0011 (3) - Both Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0xFF000000;
+ expected[1] = 0x00FF0000;
+ expected[2] = 0x0000FF00;
+ expected[3] = 0x000000FF;
+ }
+ else
+ {
+ expected[0] = 0x0000FF00;
+ expected[1] = 0x000000FF;
+ expected[2] = 0xFF000000;
+ expected[3] = 0x00FF0000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 0, 1, 2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0010 (2) - Horizontal Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+ else
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 1, 1, -2, -2, 1, 0, -2, 2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0001 (1) - Vertical Flip.
+
+ if ((SrcTopDown || DstTopDown) && !(SrcTopDown && DstTopDown))
+ {
+ expected[0] = 0x00FF0000;
+ expected[1] = 0xFF000000;
+ expected[2] = 0x000000FF;
+ expected[3] = 0x0000FF00;
+
+ }
+ else
+ {
+ expected[0] = 0x000000FF;
+ expected[1] = 0x0000FF00;
+ expected[2] = 0x00FF0000;
+ expected[3] = 0xFF000000;
+ }
+
+ test_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
+ 2, 2, -2, -2, 2, 2, -2, -2, expected, __LINE__, SrcTopDown,
DstTopDown); // Case 0000 (0) - No Flip. Special Case.
+
+ SelectObject(hdcSrc, oldSrc);
+ DeleteObject(bmpSrc);
+ DeleteDC(hdcSrc);
+
+ SelectObject(hdcDst, oldDst);
+ DeleteObject(bmpDst);
+ DeleteDC(hdcDst);
+
+ DeleteDC(hdcScreen);
+}
START_TEST(StretchBlt)
{
+ trace("\n\n## Start of generalized StretchBlt tests.\n\n");
test_StretchBlt();
+
+ trace("\n\n## Start of source top-down and destination top-down
tests.\n\n");
+ test_StretchBlt_TopDownOptions(TRUE, TRUE);
+
+ trace("\n\n## Start of source top-down and destination bottom-up
tests.\n\n");
+ test_StretchBlt_TopDownOptions(TRUE, FALSE);
+
+ trace("\n\n## Start of source bottom-up and destination top-down
tests.\n\n");
+ test_StretchBlt_TopDownOptions(FALSE, TRUE);
+
+ trace("\n\n## Start of source bottom-up and destination bottom-up
tests.\n\n");
+ test_StretchBlt_TopDownOptions(FALSE, FALSE);
}
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Doug Lyons