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gdiplus: Don't use gdi32 to do pixel format conversion.

This commit is contained in:
Vincent Povirk 2010-02-04 19:05:54 -06:00 committed by Alexandre Julliard
parent 1cbedfb204
commit 318ba28630
2 changed files with 455 additions and 70 deletions
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4
dlls/gdiplus/gdiplus_private.h
View File

@ -85,6 +85,10 @@ extern const char *debugstr_pointf(CONST PointF* pt);
extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
extern GpStatus convert_pixels(UINT width, UINT height,
INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette);
struct GpPen{
UINT style;
GpUnit unit;

517
dlls/gdiplus/image.c
View File

@ -442,6 +442,412 @@ GpStatus WINGDIPAPI GdipBitmapSetPixel(GpBitmap* bitmap, INT x, INT y,
return Ok;
}
GpStatus convert_pixels(UINT width, UINT height,
INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette)
{
UINT x, y;
if (src_format == dst_format ||
(dst_format == PixelFormat32bppRGB && PIXELFORMATBPP(src_format) == 32))
{
UINT widthbytes = PIXELFORMATBPP(src_format) * width / 8;
for (y=0; y<height; y++)
memcpy(dst_bits+dst_stride*y, src_bits+src_stride*y, widthbytes);
return Ok;
}
#define convert_indexed_to_rgb(getpixel_function, setpixel_function) do { \
for (x=0; x<width; x++) \
for (y=0; y<height; y++) { \
BYTE index; \
BYTE *color; \
getpixel_function(&index, src_bits+src_stride*y, x); \
color = (BYTE*)(&src_palette[index]); \
setpixel_function(color[2], color[1], color[0], color[3], dst_bits+dst_stride*y, x); \
} \
return Ok; \
} while (0);
#define convert_rgb_to_rgb(getpixel_function, setpixel_function) do { \
for (x=0; x<width; x++) \
for (y=0; y<height; y++) { \
BYTE r, g, b, a; \
getpixel_function(&r, &g, &b, &a, src_bits+src_stride*y, x); \
setpixel_function(r, g, b, a, dst_bits+dst_stride*y, x); \
} \
return Ok; \
} while (0);
switch (src_format)
{
case PixelFormat1bppIndexed:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat4bppIndexed:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat8bppIndexed:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat16bppGrayScale:
switch (dst_format)
{
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat16bppRGB555:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppGrayScale);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat16bppRGB565:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppRGB555);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat16bppARGB1555:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB565);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat24bppRGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppARGB1555);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat32bppRGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_24bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat32bppARGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_24bppRGB);
case PixelFormat32bppPARGB:
convert_32bppARGB_to_32bppPARGB(width, height, dst_bits, dst_stride, src_bits, src_stride);
return Ok;
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat32bppPARGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat48bppRGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppPARGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_64bppARGB);
default:
break;
}
break;
case PixelFormat64bppARGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_48bppRGB);
default:
break;
}
break;
case PixelFormat64bppPARGB:
switch (dst_format)
{
case PixelFormat16bppGrayScale:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppGrayScale);
case PixelFormat16bppRGB555:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB555);
case PixelFormat16bppRGB565:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB565);
case PixelFormat16bppARGB1555:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppARGB1555);
case PixelFormat24bppRGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_24bppRGB);
case PixelFormat32bppRGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppRGB);
case PixelFormat32bppARGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppARGB);
case PixelFormat32bppPARGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppPARGB);
case PixelFormat48bppRGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_48bppRGB);
case PixelFormat64bppARGB:
convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_64bppARGB);
default:
break;
}
break;
default:
break;
}
#undef convert_indexed_to_rgb
#undef convert_rgb_to_rgb
return NotImplemented;
}
/* This function returns a pointer to an array of pixels that represents the
* bitmap. The *entire* bitmap is locked according to the lock mode specified by
* flags. It is correct behavior that a user who calls this function with write
@ -451,14 +857,11 @@ GpStatus WINGDIPAPI GdipBitmapSetPixel(GpBitmap* bitmap, INT x, INT y,
GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
UINT flags, PixelFormat format, BitmapData* lockeddata)
{
BOOL bm_is_selected;
INT stride, bitspp = PIXELFORMATBPP(format);
HDC hdc;
HBITMAP hbm, old = NULL;
BITMAPINFO *pbmi;
BYTE *buff = NULL;
UINT abs_height;
GpRect act_rect; /* actual rect to be used */
GpStatus stat;
TRACE("%p %p %d 0x%x %p\n", bitmap, rect, flags, format, lockeddata);
@ -479,10 +882,17 @@ GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
}
if(flags & ImageLockModeUserInputBuf)
{
static int fixme=0;
if (!fixme++) FIXME("ImageLockModeUserInputBuf not implemented\n");
return NotImplemented;
}
if(bitmap->lockmode)
{
WARN("bitmap is already locked and cannot be locked again\n");
return WrongState;
}
if (bitmap->bits && bitmap->format == format)
{
@ -501,66 +911,55 @@ GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
return Ok;
}
hbm = bitmap->hbitmap;
hdc = bitmap->hdc;
bm_is_selected = (hdc != 0);
pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
if (!pbmi)
return OutOfMemory;
pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
pbmi->bmiHeader.biBitCount = 0;
if(!bm_is_selected){
hdc = CreateCompatibleDC(0);
old = SelectObject(hdc, hbm);
/* Make sure we can convert to the requested format. */
stat = convert_pixels(0, 0, 0, NULL, format, 0, NULL, bitmap->format, NULL);
if (stat == NotImplemented)
{
FIXME("cannot read bitmap from %x to %x\n", bitmap->format, format);
return NotImplemented;
}
/* fill out bmi */
GetDIBits(hdc, hbm, 0, 0, NULL, pbmi, DIB_RGB_COLORS);
/* If we're opening for writing, make sure we'll be able to write back in
* the original format. */
if (flags & ImageLockModeWrite)
{
stat = convert_pixels(0, 0, 0, NULL, bitmap->format, 0, NULL, format, NULL);
if (stat == NotImplemented)
{
FIXME("cannot write bitmap from %x to %x\n", format, bitmap->format);
return NotImplemented;
}
}
abs_height = abs(pbmi->bmiHeader.biHeight);
stride = pbmi->bmiHeader.biWidth * bitspp / 8;
abs_height = bitmap->height;
stride = (bitmap->width * bitspp + 7) / 8;
stride = (stride + 3) & ~3;
buff = GdipAlloc(stride * abs_height);
pbmi->bmiHeader.biBitCount = bitspp;
if (!buff) return OutOfMemory;
if(buff)
GetDIBits(hdc, hbm, 0, abs_height, buff, pbmi, DIB_RGB_COLORS);
stat = convert_pixels(bitmap->width, bitmap->height,
stride, buff, format,
bitmap->stride, bitmap->bits, bitmap->format, bitmap->image.palette_entries);
if(!bm_is_selected){
SelectObject(hdc, old);
DeleteDC(hdc);
}
if(!buff){
GdipFree(pbmi);
return OutOfMemory;
if (stat != Ok)
{
GdipFree(buff);
return stat;
}
lockeddata->Width = act_rect.Width;
lockeddata->Height = act_rect.Height;
lockeddata->PixelFormat = format;
lockeddata->Reserved = flags;
if(pbmi->bmiHeader.biHeight > 0){
lockeddata->Stride = -stride;
lockeddata->Scan0 = buff + (bitspp / 8) * act_rect.X +
stride * (abs_height - 1 - act_rect.Y);
}
else{
lockeddata->Stride = stride;
lockeddata->Scan0 = buff + (bitspp / 8) * act_rect.X + stride * act_rect.Y;
}
bitmap->lockmode = flags;
bitmap->numlocks++;
bitmap->bitmapbits = buff;
GdipFree(pbmi);
return Ok;
}
@ -580,10 +979,7 @@ GpStatus WINGDIPAPI GdipBitmapSetResolution(GpBitmap* bitmap, REAL xdpi, REAL yd
GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
BitmapData* lockeddata)
{
HDC hdc;
HBITMAP hbm, old = NULL;
BOOL bm_is_selected;
BITMAPINFO *pbmi;
GpStatus stat;
TRACE("(%p,%p)\n", bitmap, lockeddata);
@ -613,36 +1009,21 @@ GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
return Ok;
}
hbm = bitmap->hbitmap;
hdc = bitmap->hdc;
bm_is_selected = (hdc != 0);
stat = convert_pixels(bitmap->width, bitmap->height,
bitmap->stride, bitmap->bits, bitmap->format,
lockeddata->Stride, bitmap->bitmapbits, lockeddata->PixelFormat, NULL);
pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
pbmi->bmiHeader.biBitCount = 0;
if(!bm_is_selected){
hdc = CreateCompatibleDC(0);
old = SelectObject(hdc, hbm);
if (stat != Ok)
{
ERR("failed to convert pixels; this should never happen\n");
}
GetDIBits(hdc, hbm, 0, 0, NULL, pbmi, DIB_RGB_COLORS);
pbmi->bmiHeader.biBitCount = PIXELFORMATBPP(lockeddata->PixelFormat);
SetDIBits(hdc, hbm, 0, abs(pbmi->bmiHeader.biHeight),
bitmap->bitmapbits, pbmi, DIB_RGB_COLORS);
if(!bm_is_selected){
SelectObject(hdc, old);
DeleteDC(hdc);
}
GdipFree(pbmi);
GdipFree(bitmap->bitmapbits);
bitmap->bitmapbits = NULL;
bitmap->lockmode = 0;
bitmap->numlocks = 0;
return Ok;
return stat;
}
GpStatus WINGDIPAPI GdipCloneBitmapArea(REAL x, REAL y, REAL width, REAL height,