forked from Mirrors/wine-wine
Allow depth of DIB to differ from depth of bitmap in GetDIBits.
Huw D M Davies
Alexandre Julliard
parent
833f3aec1a
commit
cc3e5d7823
531
objects/dib.c
531
objects/dib.c
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@ -415,6 +415,85 @@ UINT WINAPI GetDIBColorTable( HDC hdc, UINT startpos, UINT entries,
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return entries;
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}
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/* FIXME the following two structs should be combined with __sysPalTemplate in
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objects/color.c - this should happen after de-X11-ing both of these
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files.
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NB. RGBQUAD and PALETTENTRY have different orderings of red, green
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and blue - sigh */
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static RGBQUAD EGAColors[16] = {
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/* rgbBlue, rgbGreen, rgbRed, rgbReserverd */
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{ 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x80, 0x00 },
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{ 0x00, 0x80, 0x00, 0x00 },
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{ 0x00, 0x80, 0x80, 0x00 },
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{ 0x80, 0x00, 0x00, 0x00 },
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{ 0x80, 0x00, 0x80, 0x00 },
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{ 0x80, 0x80, 0x00, 0x00 },
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{ 0x80, 0x80, 0x80, 0x00 },
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{ 0xc0, 0xc0, 0xc0, 0x00 },
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{ 0x00, 0x00, 0xff, 0x00 },
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{ 0x00, 0xff, 0x00, 0x00 },
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{ 0x00, 0xff, 0xff, 0x00 },
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{ 0xff, 0x00, 0x00, 0x00 },
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{ 0xff, 0x00, 0xff, 0x00 },
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{ 0xff, 0xff, 0x00, 0x00 },
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{ 0xff, 0xff, 0xff, 0x00 }
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};
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static RGBQUAD DefLogPalette[20] = { /* Copy of Default Logical Palette */
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/* rgbBlue, rgbGreen, rgbRed, rgbReserverd */
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{ 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x80, 0x00 },
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{ 0x00, 0x80, 0x00, 0x00 },
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{ 0x00, 0x80, 0x80, 0x00 },
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{ 0x80, 0x00, 0x00, 0x00 },
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{ 0x80, 0x00, 0x80, 0x00 },
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{ 0x80, 0x80, 0x00, 0x00 },
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{ 0xc0, 0xc0, 0xc0, 0x00 },
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{ 0xc0, 0xdc, 0xc0, 0x00 },
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{ 0xf0, 0xca, 0xa6, 0x00 },
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{ 0xf0, 0xfb, 0xff, 0x00 },
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{ 0xa4, 0xa0, 0xa0, 0x00 },
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{ 0x80, 0x80, 0x80, 0x00 },
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{ 0x00, 0x00, 0xf0, 0x00 },
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{ 0x00, 0xff, 0x00, 0x00 },
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{ 0x00, 0xff, 0xff, 0x00 },
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{ 0xff, 0x00, 0x00, 0x00 },
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{ 0xff, 0x00, 0xff, 0x00 },
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{ 0xff, 0xff, 0x00, 0x00 },
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{ 0xff, 0xff, 0xff, 0x00 }
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};
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/*********************************************************************
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* DIB_GetNearestIndex
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*
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* Helper for GetDIBits.
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* Returns the nearest colour table index for a given RGB.
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* Nearest is defined by minimizing the sum of the squares.
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*/
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static INT DIB_GetNearestIndex(BITMAPINFO *info, BYTE r, BYTE g, BYTE b)
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{
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INT i, best = -1, diff, bestdiff = -1;
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RGBQUAD *color;
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for(color = info->bmiColors, i = 0; i < (1 << info->bmiHeader.biBitCount);
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color++, i++) {
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diff = (r - color->rgbRed) * (r - color->rgbRed) +
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(g - color->rgbGreen) * (g - color->rgbGreen) +
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(b - color->rgbBlue) * (b - color->rgbBlue);
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if(diff == 0)
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return i;
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if(best == -1 || diff < bestdiff) {
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best = i;
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bestdiff = diff;
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}
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}
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return best;
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}
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/***********************************************************************
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* GetDIBits16 (GDI.441)
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*/
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@ -452,6 +531,7 @@ INT WINAPI GetDIBits(
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int i, x, y;
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if (!lines) return 0;
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if (!info) return 0;
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dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc)
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{
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@ -466,24 +546,59 @@ INT WINAPI GetDIBits(
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return 0;
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}
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/* Transfer color info (FIXME) */
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if (info && (info->bmiHeader.biBitCount <= 8) &&
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(bmp->bitmap.bmBitsPixel <= 8))
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{
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int colors = 1 << info->bmiHeader.biBitCount;
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/* Transfer color info */
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if (info->bmiHeader.biBitCount <= 8 && info->bmiHeader.biBitCount > 0 ) {
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info->bmiHeader.biClrUsed = 0;
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palEntry = palette->logpalette.palPalEntry;
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for (i = 0; i < colors; i++, palEntry++)
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{
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if (coloruse == DIB_RGB_COLORS)
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{
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info->bmiColors[i].rgbRed = palEntry->peRed;
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info->bmiColors[i].rgbGreen = palEntry->peGreen;
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info->bmiColors[i].rgbBlue = palEntry->peBlue;
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info->bmiColors[i].rgbReserved = 0;
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if(info->bmiHeader.biBitCount >= bmp->bitmap.bmBitsPixel) {
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palEntry = palette->logpalette.palPalEntry;
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for (i = 0; i < (1 << bmp->bitmap.bmBitsPixel); i++, palEntry++) {
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if (coloruse == DIB_RGB_COLORS) {
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info->bmiColors[i].rgbRed = palEntry->peRed;
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info->bmiColors[i].rgbGreen = palEntry->peGreen;
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info->bmiColors[i].rgbBlue = palEntry->peBlue;
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info->bmiColors[i].rgbReserved = 0;
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}
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else ((WORD *)info->bmiColors)[i] = (WORD)i;
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}
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} else {
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switch (info->bmiHeader.biBitCount) {
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case 1:
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info->bmiColors[0].rgbRed = info->bmiColors[0].rgbGreen =
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info->bmiColors[0].rgbBlue = 0;
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info->bmiColors[0].rgbReserved = 0;
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info->bmiColors[1].rgbRed = info->bmiColors[1].rgbGreen =
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info->bmiColors[1].rgbBlue = 0xff;
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info->bmiColors[1].rgbReserved = 0;
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break;
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case 4:
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memcpy(info->bmiColors, EGAColors, sizeof(EGAColors));
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break;
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case 8:
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{
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INT r, g, b;
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RGBQUAD *color;
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memcpy(info->bmiColors, DefLogPalette,
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10 * sizeof(RGBQUAD));
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memcpy(info->bmiColors + 246, DefLogPalette + 10,
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10 * sizeof(RGBQUAD));
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color = info->bmiColors + 10;
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for(r = 0; r <= 5; r++) /* FIXME */
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for(g = 0; g <= 5; g++)
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for(b = 0; b <= 5; b++) {
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color->rgbRed = (r * 0xff) / 5;
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color->rgbGreen = (g * 0xff) / 5;
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color->rgbBlue = (b * 0xff) / 5;
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color->rgbReserved = 0;
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color++;
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}
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}
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}
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else ((WORD *)info->bmiColors)[i] = (WORD)i;
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}
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}
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@ -499,7 +614,9 @@ INT WINAPI GetDIBits(
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/* adjust number of scanlines to copy */
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if( lines > info->bmiHeader.biHeight ) lines = info->bmiHeader.biHeight;
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if( lines > info->bmiHeader.biHeight )
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lines = info->bmiHeader.biHeight;
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yend = startscan + lines;
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if( startscan >= bmp->bitmap.bmHeight )
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{
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@ -525,83 +642,335 @@ INT WINAPI GetDIBits(
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bmpImage = (XImage *)CALL_LARGE_STACK( X11DRV_BITMAP_GetXImage, bmp );
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linestart = bbits;
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switch( info->bmiHeader.biBitCount )
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{
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case 8:
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for( y = yend - 1; (int)y >= (int)startscan; y-- )
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{
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for( x = 0; x < xend; x++ )
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*bbits++ = XGetPixel( bmpImage, x, y );
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bbits = (linestart += dstwidth);
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}
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break;
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case 1:
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for( y = yend - 1; (int)y >= (int)startscan; y-- )
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{
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for( x = 0; x < xend; x++ ) {
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if (!(x&7)) *bbits = 0;
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*bbits |= XGetPixel( bmpImage, x, y)<<(7-(x&7));
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switch( info->bmiHeader.biBitCount ) {
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case 1: /* 1 bit DIB */
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{
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unsigned long white = (1 << bmp->bitmap.bmBitsPixel) - 1;
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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if (!(x&7)) *bbits = 0;
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*bbits |= (XGetPixel( bmpImage, x, y) >= white)
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<< (7 - (x&7));
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if ((x&7)==7) bbits++;
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}
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bbits = (linestart += dstwidth);
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 4:
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for( y = yend - 1; (int)y >= (int)startscan; y-- )
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{
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for( x = 0; x < xend; x++ ) {
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if (!(x&1)) *bbits = 0;
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}
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break;
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case 4: /* 4 bit DIB */
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switch(bmp->bitmap.bmBitsPixel) {
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case 1: /* 1/4 bit bmp -> 4 bit DIB */
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case 4:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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if (!(x&1)) *bbits = 0;
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*bbits |= XGetPixel( bmpImage, x, y)<<(4*(1-(x&1)));
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if ((x&1)==1) bbits++;
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}
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bbits = (linestart += dstwidth);
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 15:
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case 16:
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for( y = yend - 1; (int)y >= (int)startscan; y-- )
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{
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel=XGetPixel( bmpImage, x, y);
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case 8: /* 8 bit bmp -> 4 bit DIB */
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palEntry = palette->logpalette.palPalEntry;
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel = XGetPixel( bmpImage, x, y );
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if (!(x&1)) *bbits = 0;
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*bbits |= ( DIB_GetNearestIndex(info,
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palEntry[pixel].peRed,
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palEntry[pixel].peGreen,
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palEntry[pixel].peBlue )
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<< (4*(1-(x&1))) );
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if ((x&1)==1) bbits++;
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 15: /* 15/16 bit bmp -> 4 bit DIB */
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case 16:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel = XGetPixel( bmpImage, x, y );
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if (!(x&1)) *bbits = 0;
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*bbits |= ( DIB_GetNearestIndex(info,
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((pixel << 3) & 0xf8) |
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((pixel >> 2) & 0x7),
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((pixel >> 2) & 0xf8) |
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((pixel >> 7) & 0x7),
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((pixel >> 7) & 0xf8) |
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((pixel >> 12) & 0x7) )
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<< (4*(1-(x&1))) );
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if ((x&1)==1) bbits++;
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 24: /* 24/32 bit bmp -> 4 bit DIB */
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case 32:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel = XGetPixel( bmpImage, x, y );
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if (!(x&1)) *bbits = 0;
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*bbits |= ( DIB_GetNearestIndex( info,
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(pixel >> 16) & 0xff,
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(pixel >> 8) & 0xff,
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pixel & 0xff )
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<< (4*(1-(x&1))) );
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if ((x&1)==1) bbits++;
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}
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bbits = (linestart += dstwidth);
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}
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break;
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default: /* ? bit bmp -> 4 bit DIB */
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FIXME(bitmap, "4 bit DIB %d bit bitmap\n",
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bmp->bitmap.bmBitsPixel);
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break;
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}
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break;
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case 8: /* 8 bit DIB */
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switch(bmp->bitmap.bmBitsPixel) {
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case 1: /* 1/4/8 bit bmp -> 8 bit DIB */
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case 4:
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case 8:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ )
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*bbits++ = XGetPixel( bmpImage, x, y );
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bbits = (linestart += dstwidth);
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}
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break;
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case 15: /* 15/16 bit bmp -> 8 bit DIB */
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case 16:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel = XGetPixel( bmpImage, x, y );
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*bbits++ = DIB_GetNearestIndex( info,
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((pixel << 3) & 0xf8) |
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((pixel >> 2) & 0x7),
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((pixel >> 2) & 0xf8) |
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((pixel >> 7) & 0x7),
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((pixel >> 7) & 0xf8) |
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((pixel >> 12) & 0x7) );
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 24: /* 24/32 bit bmp -> 8 bit DIB */
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case 32:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel = XGetPixel( bmpImage, x, y );
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*bbits++ = DIB_GetNearestIndex( info,
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(pixel >> 16) & 0xff,
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(pixel >> 8) & 0xff,
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pixel & 0xff );
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}
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bbits = (linestart += dstwidth);
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}
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break;
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default: /* ? bit bmp -> 8 bit DIB */
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FIXME(bitmap, "8 bit DIB %d bit bitmap\n",
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bmp->bitmap.bmBitsPixel);
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break;
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}
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break;
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case 15: /* 15/16 bit DIB */
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case 16:
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switch(bmp->bitmap.bmBitsPixel) {
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case 15: /* 15/16 bit bmp -> 16 bit DIB */
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case 16:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel=XGetPixel( bmpImage, x, y);
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*bbits++ = pixel & 0xff;
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*bbits++ = (pixel >> 8) & 0xff;
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}
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bbits = (linestart += dstwidth);
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 24:
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for( y = yend - 1; (int)y >= (int)startscan; y-- )
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{
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel=XGetPixel( bmpImage, x, y);
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case 24: /* 24/32 bit bmp -> 16 bit DIB */
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case 32:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel=XGetPixel( bmpImage, x, y);
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*bbits++ = ((pixel >> 6) & 0xe0) |
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((pixel >> 3) & 0x1f);
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*bbits++ = ((pixel >> 17) & 0x7c) |
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((pixel >> 14) & 0x3);
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}
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bbits = (linestart += dstwidth);
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}
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break;
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case 1: /* 1/4/8 bit bmp -> 16 bit DIB */
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case 4:
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case 8:
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palEntry = palette->logpalette.palPalEntry;
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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unsigned long pixel=XGetPixel( bmpImage, x, y);
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*bbits++ = ((palEntry[pixel].peBlue >> 3) & 0x1f) |
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((palEntry[pixel].peGreen << 2) & 0xe0);
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*bbits++ = ((palEntry[pixel].peGreen >> 6) & 0x3) |
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((palEntry[pixel].peRed >> 1) & 0x7c);
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}
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bbits = (linestart += dstwidth);
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}
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break;
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default: /* ? bit bmp -> 16 bit DIB */
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FIXME(bitmap, "15/16 bit DIB %d bit bitmap\n",
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bmp->bitmap.bmBitsPixel);
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break;
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}
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break;
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case 24: /* 24 bit DIB */
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switch(bmp->bitmap.bmBitsPixel) {
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case 24: /* 24/32 bit bmp -> 24 bit DIB */
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case 32:
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for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
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for( x = 0; x < xend; x++ ) {
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||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = (pixel >>16) & 0xff;
|
||||
*bbits++ = (pixel >> 8) & 0xff;
|
||||
*bbits++ = pixel & 0xff;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
case 32:
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- )
|
||||
{
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
|
||||
case 15: /* 15/16 bit bmp -> 24 bit DIB */
|
||||
case 16:
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = ((pixel >> 7) & 0xf8) |
|
||||
((pixel >> 12) & 0x7);
|
||||
*bbits++ = ((pixel >> 2) & 0xf8) |
|
||||
((pixel >> 7) & 0x7);
|
||||
*bbits++ = ((pixel << 3) & 0xf8) |
|
||||
((pixel >> 2) & 0x7);
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
|
||||
case 1: /* 1/4/8 bit bmp -> 24 bit DIB */
|
||||
case 4:
|
||||
case 8:
|
||||
palEntry = palette->logpalette.palPalEntry;
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = palEntry[pixel].peBlue;
|
||||
*bbits++ = palEntry[pixel].peGreen;
|
||||
*bbits++ = palEntry[pixel].peRed;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
|
||||
default: /* ? bit bmp -> 24 bit DIB */
|
||||
FIXME(bitmap, "24 bit DIB %d bit bitmap\n",
|
||||
bmp->bitmap.bmBitsPixel);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
|
||||
case 32: /* 32 bit DIB */
|
||||
switch(bmp->bitmap.bmBitsPixel) {
|
||||
|
||||
case 24: /* 24/32 bit bmp -> 32 bit DIB */
|
||||
case 32:
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = (pixel >>16) & 0xff;
|
||||
*bbits++ = (pixel >> 8) & 0xff;
|
||||
*bbits++ = pixel & 0xff;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
*bbits++ = 0;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
WARN(bitmap,"Unsupported depth %d\n",
|
||||
info->bmiHeader.biBitCount);
|
||||
break;
|
||||
|
||||
case 15: /* 15/16 bit bmp -> 32 bit DIB */
|
||||
case 16:
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = ((pixel >> 7) & 0xf8) |
|
||||
((pixel >> 12) & 0x7);
|
||||
*bbits++ = ((pixel >> 2) & 0xf8) |
|
||||
((pixel >> 7) & 0x7);
|
||||
*bbits++ = ((pixel << 3) & 0xf8) |
|
||||
((pixel >> 2) & 0x7);
|
||||
*bbits++ = 0;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
|
||||
case 1: /* 1/4/8 bit bmp -> 32 bit DIB */
|
||||
case 4:
|
||||
case 8:
|
||||
palEntry = palette->logpalette.palPalEntry;
|
||||
for( y = yend - 1; (int)y >= (int)startscan; y-- ) {
|
||||
for( x = 0; x < xend; x++ ) {
|
||||
unsigned long pixel=XGetPixel( bmpImage, x, y);
|
||||
*bbits++ = palEntry[pixel].peBlue;
|
||||
*bbits++ = palEntry[pixel].peGreen;
|
||||
*bbits++ = palEntry[pixel].peRed;
|
||||
*bbits++ = 0;
|
||||
}
|
||||
bbits = (linestart += dstwidth);
|
||||
}
|
||||
break;
|
||||
|
||||
default: /* ? bit bmp -> 32 bit DIB */
|
||||
FIXME(bitmap, "32 bit DIB %d bit bitmap\n",
|
||||
bmp->bitmap.bmBitsPixel);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
|
||||
default: /* ? bit DIB */
|
||||
FIXME(bitmap,"Unsupported DIB depth %d\n",
|
||||
info->bmiHeader.biBitCount);
|
||||
break;
|
||||
}
|
||||
|
||||
XDestroyImage( bmpImage );
|
||||
LeaveCriticalSection( &X11DRV_CritSection );
|
||||
|
||||
if(info->bmiHeader.biSizeImage == 0) /* Fill in biSizeImage */
|
||||
info->bmiHeader.biSizeImage = info->bmiHeader.biHeight *
|
||||
DIB_GetDIBWidthBytes( info->bmiHeader.biWidth,
|
||||
info->bmiHeader.biBitCount );
|
||||
|
||||
if(bbits - (BYTE *)bits > info->bmiHeader.biSizeImage)
|
||||
ERR(bitmap, "Buffer overrun. Please investigate.\n");
|
||||
|
||||
|
|
@ -610,16 +979,26 @@ INT WINAPI GetDIBits(
|
|||
else if( info->bmiHeader.biSize >= sizeof(BITMAPINFOHEADER) )
|
||||
{
|
||||
/* fill in struct members */
|
||||
|
||||
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
|
||||
info->bmiHeader.biHeight = bmp->bitmap.bmHeight;
|
||||
info->bmiHeader.biPlanes = 1;
|
||||
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
||||
info->bmiHeader.biSizeImage = bmp->bitmap.bmHeight *
|
||||
|
||||
if( info->bmiHeader.biBitCount == 0)
|
||||
{
|
||||
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
|
||||
info->bmiHeader.biHeight = bmp->bitmap.bmHeight;
|
||||
info->bmiHeader.biPlanes = 1;
|
||||
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
|
||||
info->bmiHeader.biSizeImage = bmp->bitmap.bmHeight *
|
||||
DIB_GetDIBWidthBytes( bmp->bitmap.bmWidth,
|
||||
bmp->bitmap.bmBitsPixel );
|
||||
info->bmiHeader.biCompression = 0;
|
||||
info->bmiHeader.biCompression = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
info->bmiHeader.biSizeImage = info->bmiHeader.biHeight *
|
||||
DIB_GetDIBWidthBytes( info->bmiHeader.biWidth,
|
||||
info->bmiHeader.biBitCount );
|
||||
}
|
||||
}
|
||||
|
||||
TRACE(bitmap, "biSizeImage = %ld, biWidth = %ld, biHeight = %ld\n",
|
||||
info->bmiHeader.biSizeImage, info->bmiHeader.biWidth,
|
||||
info->bmiHeader.biHeight);
|
||||
|
|
|
|||
Loading…
Reference in New Issue