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gdiplus: Introduce dst palette parameter to convert_pixels().

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Make it possible to define a destination colour palette when
using convert_pixels(), so converting a bitmap from a non
indexed format to an indexed format does not produce an empty image.

Signed-off-by: Bernhard Kölbl <besentv@gmail.com>
Signed-off-by: Esme Povirk <esme@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Bernhard Kölbl 2021-11-29 15:28:33 +01:00 committed by Alexandre Julliard
parent 8a43d0808a
commit ec29292141
3 changed files with 14 additions and 12 deletions
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4
dlls/gdiplus/gdiplus_private.h
View file

@ -207,8 +207,8 @@ extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride) DECLSPEC_HIDDEN;
extern GpStatus convert_pixels(INT width, INT height,
INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
INT src_stride, const BYTE *src_bits, PixelFormat src_format, ColorPalette *palette) DECLSPEC_HIDDEN;
INT dst_stride, BYTE *dst_bits, PixelFormat dst_format, ColorPalette *dst_palette,
INT src_stride, const BYTE *src_bits, PixelFormat src_format, ColorPalette *src_palette) DECLSPEC_HIDDEN;
extern PixelFormat apply_image_attributes(const GpImageAttributes *attributes, LPBYTE data,
UINT width, UINT height, INT stride, ColorAdjustType type, PixelFormat fmt) DECLSPEC_HIDDEN;

2
dlls/gdiplus/graphics.c
View file

@ -3350,7 +3350,7 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
dst_format = PixelFormat32bppRGB;
convert_pixels(bitmap->width, bitmap->height,
bitmap->width*4, temp_bits, dst_format,
bitmap->width*4, temp_bits, dst_format, bitmap->image.palette,
bitmap->stride, bitmap->bits, bitmap->format,
bitmap->image.palette);
}

20
dlls/gdiplus/image.c
View file

@ -591,8 +591,9 @@ GpStatus WINGDIPAPI GdipBitmapSetPixel(GpBitmap* bitmap, INT x, INT y,
GpStatus convert_pixels(INT width, INT height,
INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
ColorPalette *dst_palette,
INT src_stride, const BYTE *src_bits, PixelFormat src_format,
ColorPalette *palette)
ColorPalette *src_palette)
{
INT x, y;
@ -612,7 +613,7 @@ GpStatus convert_pixels(INT width, INT height,
ARGB argb; \
BYTE *color = (BYTE *)&argb; \
getpixel_function(&index, src_bits+src_stride*y, x); \
argb = (palette && index < palette->Count) ? palette->Entries[index] : 0; \
argb = (src_palette && index < src_palette->Count) ? src_palette->Entries[index] : 0; \
setpixel_function(color[2], color[1], color[0], color[3], dst_bits+dst_stride*y, x); \
} \
return Ok; \
@ -633,7 +634,7 @@ GpStatus convert_pixels(INT width, INT height,
for (x=0; x<width; x++) { \
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, palette); \
setpixel_function(r, g, b, a, dst_bits+dst_stride*y, x, dst_palette); \
} \
return Ok; \
} while (0);
@ -1137,7 +1138,7 @@ GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
/* Make sure we can convert to the requested format. */
if (flags & ImageLockModeRead)
{
stat = convert_pixels(0, 0, 0, NULL, format, 0, NULL, bitmap->format, NULL);
stat = convert_pixels(0, 0, 0, NULL, format, NULL, 0, NULL, bitmap->format, NULL);
if (stat == NotImplemented)
{
FIXME("cannot read bitmap from %x to %x\n", bitmap->format, format);
@ -1150,7 +1151,7 @@ GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
* the original format. */
if (flags & ImageLockModeWrite)
{
stat = convert_pixels(0, 0, 0, NULL, bitmap->format, 0, NULL, format, NULL);
stat = convert_pixels(0, 0, 0, NULL, bitmap->format, NULL, 0, NULL, format, NULL);
if (stat == NotImplemented)
{
FIXME("cannot write bitmap from %x to %x\n", format, bitmap->format);
@ -1190,7 +1191,7 @@ GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
}
stat = convert_pixels(act_rect.Width, act_rect.Height,
lockeddata->Stride, lockeddata->Scan0, format,
lockeddata->Stride, lockeddata->Scan0, format, bitmap->image.palette,
bitmap->stride,
bitmap->bits + bitmap->stride * act_rect.Y + PIXELFORMATBPP(bitmap->format) * act_rect.X / 8,
bitmap->format, bitmap->image.palette);
@ -1267,10 +1268,11 @@ GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
fixme = TRUE;
}
/* FIXME: Pass src_palette generated from lockeddata->PixelFormat. */
stat = convert_pixels(lockeddata->Width, lockeddata->Height,
bitmap->stride,
bitmap->bits + bitmap->stride * bitmap->locky + PIXELFORMATBPP(bitmap->format) * bitmap->lockx / 8,
bitmap->format,
bitmap->format, bitmap->image.palette,
lockeddata->Stride, lockeddata->Scan0, lockeddata->PixelFormat, NULL);
if (stat != Ok)
@ -1314,7 +1316,7 @@ GpStatus WINGDIPAPI GdipCloneBitmapArea(REAL x, REAL y, REAL width, REAL height,
if (stat == Ok)
{
stat = convert_pixels(area.Width, area.Height, (*dstBitmap)->stride, (*dstBitmap)->bits, (*dstBitmap)->format,
srcBitmap->stride,
(*dstBitmap)->image.palette, srcBitmap->stride,
srcBitmap->bits + srcBitmap->stride * area.Y + PIXELFORMATBPP(srcBitmap->format) * area.X / 8,
srcBitmap->format, srcBitmap->image.palette);
@ -1545,7 +1547,7 @@ GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
}
stat = convert_pixels(width, height, -width*4,
bits + (width * 4 * (height - 1)), PixelFormat32bppPARGB,
bits + (width * 4 * (height - 1)), PixelFormat32bppPARGB, bitmap->image.palette,
bitmap->stride, bitmap->bits, bitmap->format, bitmap->image.palette);
if (stat != Ok)
{