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gdiplus: Add tests for locked image bit reading/writing.

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Vincent Povirk 2011-02-14 17:11:58 -06:00 committed by Alexandre Julliard
parent 732aa89c08
commit 88ce03103b
1 changed files with 104 additions and 0 deletions
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104
dlls/gdiplus/tests/image.c
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@ -516,6 +516,7 @@ static void test_LockBits(void)
GpRect rect;
BitmapData bd;
const INT WIDTH = 10, HEIGHT = 20;
ARGB color;
bm = NULL;
stat = GdipCreateBitmapFromScan0(WIDTH, HEIGHT, 0, PixelFormat24bppRGB, NULL, &bm);
@ -526,15 +527,33 @@ static void test_LockBits(void)
rect.Width = 4;
rect.Height = 5;
stat = GdipBitmapSetPixel(bm, 2, 3, 0xffc30000);
expect(Ok, stat);
stat = GdipBitmapSetPixel(bm, 2, 8, 0xff480000);
expect(Ok, stat);
/* read-only */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeRead, PixelFormat24bppRGB, &bd);
expect(Ok, stat);
if (stat == Ok) {
expect(0xc3, ((BYTE*)bd.Scan0)[2]);
expect(0x48, ((BYTE*)bd.Scan0)[2 + bd.Stride * 5]);
((char*)bd.Scan0)[2] = 0xff;
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
stat = GdipBitmapGetPixel(bm, 2, 3, &color);
expect(Ok, stat);
expect(0xffff0000, color);
stat = GdipBitmapSetPixel(bm, 2, 3, 0xffc30000);
expect(Ok, stat);
/* read-only, with NULL rect -> whole bitmap lock */
stat = GdipBitmapLockBits(bm, NULL, ImageLockModeRead, PixelFormat24bppRGB, &bd);
expect(Ok, stat);
@ -542,10 +561,16 @@ static void test_LockBits(void)
expect(bd.Height, HEIGHT);
if (stat == Ok) {
((char*)bd.Scan0)[2 + 2*3 + 3*bd.Stride] = 0xff;
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
stat = GdipBitmapGetPixel(bm, 2, 3, &color);
expect(Ok, stat);
expect(0xffff0000, color);
/* read-only, consecutive */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeRead, PixelFormat24bppRGB, &bd);
expect(Ok, stat);
@ -574,6 +599,81 @@ static void test_LockBits(void)
stat = GdipCreateBitmapFromScan0(WIDTH, HEIGHT, 0, PixelFormat24bppRGB, NULL, &bm);
expect(Ok, stat);
stat = GdipBitmapSetPixel(bm, 2, 3, 0xffff0000);
expect(Ok, stat);
stat = GdipBitmapSetPixel(bm, 2, 8, 0xffc30000);
expect(Ok, stat);
/* write, no conversion */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeWrite, PixelFormat24bppRGB, &bd);
expect(Ok, stat);
if (stat == Ok) {
/* all bits are readable, inside the rect or not */
expect(0xff, ((BYTE*)bd.Scan0)[2]);
expect(0xc3, ((BYTE*)bd.Scan0)[2 + bd.Stride * 5]);
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
/* read, conversion */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeRead, PixelFormat32bppARGB, &bd);
expect(Ok, stat);
if (stat == Ok) {
expect(0xff, ((BYTE*)bd.Scan0)[2]);
if (0)
/* Areas outside the rectangle appear to be uninitialized */
ok(0xc3 != ((BYTE*)bd.Scan0)[2 + bd.Stride * 5], "original image bits are readable\n");
((BYTE*)bd.Scan0)[2] = 0xc3;
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
/* writes do not work in read mode if there was a conversion */
stat = GdipBitmapGetPixel(bm, 2, 3, &color);
expect(Ok, stat);
expect(0xffff0000, color);
/* read/write, conversion */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeRead|ImageLockModeWrite, PixelFormat32bppARGB, &bd);
expect(Ok, stat);
if (stat == Ok) {
expect(0xff, ((BYTE*)bd.Scan0)[2]);
if (0)
/* Areas outside the rectangle appear to be uninitialized */
ok(0xc3 != ((BYTE*)bd.Scan0)[2 + bd.Stride * 5], "original image bits are readable\n");
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
/* write, conversion */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeWrite, PixelFormat32bppARGB, &bd);
expect(Ok, stat);
if (stat == Ok) {
if (0)
{
/* This is completely uninitialized. */
ok(0xff != ((BYTE*)bd.Scan0)[2], "original image bits are readable\n");
ok(0xc3 != ((BYTE*)bd.Scan0)[2 + bd.Stride * 5], "original image bits are readable\n");
}
stat = GdipBitmapUnlockBits(bm, &bd);
expect(Ok, stat);
}
stat = GdipDisposeImage((GpImage*)bm);
expect(Ok, stat);
stat = GdipCreateBitmapFromScan0(WIDTH, HEIGHT, 0, PixelFormat24bppRGB, NULL, &bm);
expect(Ok, stat);
/* write, no modification */
stat = GdipBitmapLockBits(bm, &rect, ImageLockModeWrite, PixelFormat24bppRGB, &bd);
expect(Ok, stat);
@ -609,6 +709,10 @@ static void test_LockBits(void)
expect(Ok, stat);
}
stat = GdipBitmapGetPixel(bm, 2, 3, &color);
expect(Ok, stat);
expect(0xffff0000, color);
stat = GdipDisposeImage((GpImage*)bm);
expect(Ok, stat);