Fixed {S|G}etBitmapBits in x11drv. Removed BITMAP_GetPadding.
This commit is contained in:
Huw D M Davies
Alexandre Julliard
parent
8a5eb4de6a
commit
e42ee26d9a
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@ -254,16 +254,11 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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{
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LONG old_height, height;
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XImage *image;
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LPBYTE tbuf;
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int h, w, pad;
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LPBYTE tbuf, startline;
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int h, w;
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TRACE(x11drv, "(bmp=%p, buffer=%p, count=0x%lx)\n", bmp, buffer, count);
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pad = BITMAP_GetPadding(bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel);
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if (pad == -1)
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return 0;
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EnterCriticalSection( &X11DRV_CritSection );
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/* Hack: change the bitmap height temporarily to avoid */
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@ -278,12 +273,13 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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/* copy XImage to 16 bit padded image buffer with real bitsperpixel */
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tbuf = buffer;
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startline = buffer;
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switch (bmp->bitmap.bmBitsPixel)
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{
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case 1:
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for (h=0;h<height;h++)
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{
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tbuf = startline;
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*tbuf = 0;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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@ -292,32 +288,35 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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*tbuf |= XGetPixel(image,w,h)<<(7-(w&7));
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if ((w&7) == 7) ++tbuf;
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}
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tbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 4:
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for (h=0;h<height;h++)
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{
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tbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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if (!(w & 1)) *tbuf = XGetPixel( image, w, h) << 4;
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else *tbuf++ |= XGetPixel( image, w, h) & 0x0f;
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}
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tbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 8:
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for (h=0;h<height;h++)
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{
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tbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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*tbuf++ = XGetPixel(image,w,h);
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tbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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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 (h=0;h<height;h++)
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{
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tbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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long pixel = XGetPixel(image,w,h);
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@ -325,11 +324,13 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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*tbuf++ = pixel & 0xff;
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*tbuf++ = (pixel>>8) & 0xff;
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}
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 24:
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for (h=0;h<height;h++)
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{
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tbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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long pixel = XGetPixel(image,w,h);
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@ -338,13 +339,14 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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*tbuf++ = (pixel>> 8) & 0xff;
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*tbuf++ = (pixel>>16) & 0xff;
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}
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tbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 32:
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for (h=0;h<height;h++)
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{
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tbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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long pixel = XGetPixel(image,w,h);
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@ -354,7 +356,7 @@ static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
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*tbuf++ = (pixel>>16) & 0xff;
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*tbuf++ = (pixel>>24) & 0xff;
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}
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tbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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default:
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@ -380,18 +382,11 @@ static LONG X11DRV_SetBitmapBits(BITMAPOBJ *bmp, void *bits, LONG count)
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struct XPutImage_descr descr;
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LONG height;
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XImage *image;
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LPBYTE sbuf;
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int w, h, pad;
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LPBYTE sbuf, startline;
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int w, h;
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TRACE(x11drv, "(bmp=%p, bits=%p, count=0x%lx)\n", bmp, bits, count);
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pad = BITMAP_GetPadding(bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel);
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if (pad == -1)
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return 0;
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sbuf = (LPBYTE)bits;
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height = count / bmp->bitmap.bmWidthBytes;
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EnterCriticalSection( &X11DRV_CritSection );
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@ -401,71 +396,80 @@ static LONG X11DRV_SetBitmapBits(BITMAPOBJ *bmp, void *bits, LONG count)
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image->data = (LPBYTE)xmalloc(image->bytes_per_line * height);
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/* copy 16 bit padded image buffer with real bitsperpixel to XImage */
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sbuf = (LPBYTE)bits;
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startline = bits;
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switch (bmp->bitmap.bmBitsPixel)
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{
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case 1:
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for (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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XPutPixel(image,w,h,(sbuf[0]>>(7-(w&7))) & 1);
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if ((w&7) == 7)
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sbuf++;
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}
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sbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 4:
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for (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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if (!(w & 1)) XPutPixel( image, w, h, *sbuf >> 4 );
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else XPutPixel( image, w, h, *sbuf++ & 0xf );
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}
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sbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 8:
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for (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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XPutPixel(image,w,h,*sbuf++);
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sbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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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 (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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XPutPixel(image,w,h,sbuf[1]*256+sbuf[0]);
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sbuf+=2;
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}
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 24:
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for (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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XPutPixel(image,w,h,(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
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sbuf += 3;
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}
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sbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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case 32:
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for (h=0;h<height;h++)
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{
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sbuf = startline;
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for (w=0;w<bmp->bitmap.bmWidth;w++)
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{
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XPutPixel(image,w,h,(sbuf[3]<<24)+(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
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sbuf += 4;
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}
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sbuf += pad;
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startline += bmp->bitmap.bmWidthBytes;
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}
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break;
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default:
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@ -62,7 +62,6 @@ typedef struct tagBITMAPOBJ
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extern INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer );
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extern INT BITMAP_GetObject( BITMAPOBJ * bmp, INT count, LPVOID buffer );
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extern BOOL BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bitmap );
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extern INT BITMAP_GetPadding( INT width, INT depth );
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extern INT BITMAP_GetWidthBytes( INT width, INT depth );
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extern HBITMAP BITMAP_LoadBitmapW(HINSTANCE instance,LPCWSTR name,
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UINT loadflags);
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@ -20,46 +20,6 @@
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#include "monitor.h"
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#include "wine/winuser16.h"
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/***********************************************************************
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* BITMAP_GetPadding
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*
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* Return number of bytes to pad a scanline of 16-bit aligned Windows DDB data.
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*/
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INT BITMAP_GetPadding( int bmWidth, int bpp )
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{
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INT pad;
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switch (bpp)
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{
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case 1:
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pad = ((bmWidth-1) & 8) ? 0 : 1;
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break;
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case 8:
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pad = (2 - (bmWidth & 1)) & 1;
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break;
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case 24:
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pad = (bmWidth*3) & 1;
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break;
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case 32:
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case 16:
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case 15:
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pad = 0; /* we have 16bit alignment already */
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break;
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case 4:
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if (!(bmWidth & 3)) pad = 0;
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else pad = ((4 - (bmWidth & 3)) + 1) / 2;
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break;
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default:
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WARN(bitmap,"Unknown depth %d, please report.\n", bpp );
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return -1;
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}
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return pad;
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}
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/***********************************************************************
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* BITMAP_GetWidthBytes
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