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#ifdef WIN32
#ifndef __cplusplus
#error Please compile with a C++ compiler.
#endif
#endif
#if defined(USE_WINDOWS_GDIPLUS)
#include <Windows.h>
#include <GdiPlus.h>
#pragma comment(lib, "gdiplus")
#else
#include <GdiPlusFlat.h>
#endif
#if defined(USE_WINDOWS_GDIPLUS)
using namespace Gdiplus;
using namespace DllExports;
#endif
#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "testhelpers.h"
/* FIXME:
* libgdiplus version is larger than it should be. The library writes
* to the extended fields, overwriting other data if the non-extended
* version is used. This causes the failure of this test because other
* parts of the stack are unexpectedly overwritten.
*/
typedef union {
BitmapData origBitmapData;
/* This structure is from src/bitmap-private.h */
struct {
unsigned int width;
unsigned int height;
int stride;
int pixel_format;
BYTE *scan0;
unsigned int reserved;
/* the rest of the structure isn't part of MS GDI+ definition */
ColorPalette *palette;
int property_count; /* Number of properties */
PropertyItem *property; /* Properties associated with image */
float dpi_horz; /* */
float dpi_vert; /* */
ImageFlags image_flags; /* Alpha, ColorSpace, etc. */
unsigned int left; /* left display coordinate of frame */
unsigned int top; /* top display coordinate of frame */
unsigned int x; /* LockBits: left coordinate of locked rectangle */
unsigned int y; /* LockBits: top coordinate of locked rectangle */
int transparent; /* Index of transparent color (<24bit only) */
} extendedBitmapData;
} IncompatibleBitmapData;
static void test_lockBits ()
{
GpBitmap *bitmap;
IncompatibleBitmapData d, q;
Rect r = {0, 0, 10, 10};
int i, j;
unsigned char *cptr;
BYTE *scan0 = (BYTE*) GdipAlloc(10 * 10 * 4);
GpStatus status = GdipCreateBitmapFromScan0 (10, 10, 10 * 4, PixelFormat32bppARGB, scan0, &bitmap);
assertEqualInt (status, Ok);
// Full rectangle, no format conversion, read only.
status = GdipBitmapLockBits (bitmap, &r, ImageLockModeRead, PixelFormat32bppARGB, &d.origBitmapData);
assertEqualInt (status, Ok);
// Relock.
status = GdipBitmapLockBits (bitmap, &r, ImageLockModeRead, PixelFormat32bppARGB, &q.origBitmapData);
assertEqualInt (status, WrongState);
// Unlock.
status = GdipBitmapUnlockBits (bitmap, &d.origBitmapData);
assertEqualInt (status, Ok);
// Half rectangle, no format conversion, read only
memset (&d, 0x00, sizeof (IncompatibleBitmapData));
status = GdipBitmapLockBits (bitmap, &r, ImageLockModeRead, PixelFormat32bppARGB, &d.origBitmapData);
assertEqualInt (status, Ok);
for (j = 0; j < 5; j++) {
cptr = (unsigned char *) d.origBitmapData.Scan0 + j * d.origBitmapData.Stride;
printf ("%d: ", j);
for (i = 0; i < 5; i++) {
printf ("%04x ", *cptr++);
}
printf ("\n");
}
printf ("Modifying (setting to 0xff)\n");
memset (d.origBitmapData.Scan0, 0xff, d.origBitmapData.Stride * d.origBitmapData.Height);
status = GdipBitmapUnlockBits (bitmap, &d.origBitmapData);
assertEqualInt (status, Ok);
// Half rectangle, 32bpp ARGB -> 32bpp RGB, read only
memset (&d, 0x00, sizeof (IncompatibleBitmapData));
r.X = 5; r.Y = 5;
r.Width = 5; r.Height = 5;
status = GdipBitmapLockBits (bitmap, &r, ImageLockModeRead, PixelFormat32bppRGB, &d.origBitmapData);
assertEqualInt (status, Ok);
for (j = 0; j < 5; j++) {
cptr = (unsigned char *) d.origBitmapData.Scan0 + j * d.origBitmapData.Stride;
printf ("%d: ", j);
for (i = 0; i < 5; i++) {
printf ("%04x ", *cptr++);
}
printf ("\n");
}
status = GdipBitmapUnlockBits (bitmap, &d.origBitmapData);
assertEqualInt (status, Ok);
// nHalf rectangle, 32bpp ARGB -> 24bpp RGB, read/write only
memset (&d, 0x00, sizeof (IncompatibleBitmapData));
r.X = 5; r.Y = 5;
r.Width = 5; r.Height = 5;
status = GdipBitmapLockBits (bitmap, &r, ImageLockModeRead | ImageLockModeWrite, PixelFormat24bppRGB, &d.origBitmapData);
assertEqualInt (status, Ok);
for (j = 0; j < 5; j++) {
cptr = ((unsigned char *)d.origBitmapData.Scan0) + (j * d.origBitmapData.Stride);
printf ("%d: ", j);
for (i = 0; i < 5; i++) {
printf ("%02x%02x%02x ", cptr[0], cptr[1], cptr[2]);
cptr += 3;
}
printf ("\n");
}
printf ("Modifying (setting to 0xaabbcc)\n");
for (j = 0; j < 5; j++) {
cptr = ((unsigned char *)d.origBitmapData.Scan0) + (j * d.origBitmapData.Stride);
for (i = 0; i < 5; i++) {
*cptr++ = 0xcc;
*cptr++ = 0xbb;
*cptr++ = 0xaa;
}
}
status = GdipBitmapUnlockBits (bitmap, &d.origBitmapData);
assertEqualInt (status, Ok);
GdipFree (scan0);
GdipDisposeImage ((GpImage *) bitmap);
}
static void test_unlockBits ()
{
GpStatus status;
GpBitmap *bitmap;
IncompatibleBitmapData data;
GdipCreateBitmapFromScan0 (10, 10, 0, PixelFormat32bppARGB, NULL, &bitmap);
// Negative tests.
memset (&data, 0x00, sizeof (IncompatibleBitmapData));
status = GdipBitmapUnlockBits (NULL, &data.origBitmapData);
assertEqualInt (status, InvalidParameter);
status = GdipBitmapUnlockBits (bitmap, NULL);
assertEqualInt (status, InvalidParameter);
status = GdipBitmapUnlockBits (bitmap, &data.origBitmapData);
assertEqualInt (status, Win32Error);
GdipDisposeImage ((GpImage *) bitmap);
}
int
main (int argc, char **argv)
{
STARTUP;
test_lockBits ();
test_unlockBits ();
SHUTDOWN;
return 0;
}
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