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- Support for the End-Of-Line RLE mark.

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- Treat the bitmap header field bV5ClrUsed correctly if it's set to zero.

svn path=/trunk/; revision=9454
This commit is contained in:
Filip Navara 2004-05-21 17:05:46 +00:00
parent 08855e847a
commit d76f0c8745
1 changed files with 24 additions and 13 deletions
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37
reactos/drivers/dd/bootvid/bootvid.c
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@ -18,7 +18,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id: bootvid.c,v 1.8 2004/05/15 22:45:50 hbirr Exp $
* $Id: bootvid.c,v 1.9 2004/05/21 17:05:46 navaraf Exp $
*/
/* INCLUDES ******************************************************************/
@ -41,14 +41,14 @@
* - Graphics: Data Rotate (Index 3)
* Set to zero to indicate that the data written to video memory by
* CPU should be processed unmodified.
* - Graphics: Mode Register (index 5)
* - Graphics: Mode Register (Index 5)
* Set to Write Mode 2 and Read Mode 0.
*/
static VGA_REGISTERS Mode12Regs =
{
/* CRT Controller Registers */
{0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00, 0x40, 0x00, 0x00,
{0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xDE, 0x1F, 0x00, 0x40, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xEA, 0x8C, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3},
/* Attribute Controller Registers */
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
@ -327,6 +327,7 @@ InbvDisplayCompressedBitmap()
ULONG bfOffBits;
ULONG clen;
PCHAR ImageData;
UCHAR ClrUsed;
bminfo = (PBITMAPV5HEADER) &BootimageBitmap[0];
DPRINT("bV5Size = %d\n", bminfo->bV5Size);
@ -341,9 +342,14 @@ InbvDisplayCompressedBitmap()
DPRINT("bV5ClrUsed = %d\n", bminfo->bV5ClrUsed);
DPRINT("bV5ClrImportant = %d\n", bminfo->bV5ClrImportant);
bfOffBits = bminfo->bV5Size + bminfo->bV5ClrUsed * sizeof(RGBQUAD);
if (bminfo->bV5ClrUsed)
ClrUsed = bminfo->bV5ClrUsed;
else
ClrUsed = 1 << bminfo->bV5BitCount;
bfOffBits = bminfo->bV5Size + ClrUsed * sizeof(RGBQUAD);
DPRINT("bfOffBits = %d\n", bfOffBits);
DPRINT("size of color indices = %d\n", bminfo->bV5ClrUsed * sizeof(RGBQUAD));
DPRINT("size of color indices = %d\n", ClrUsed * sizeof(RGBQUAD));
DPRINT("first byte of data = %d\n", BootimageBitmap[bfOffBits]);
InbvSetBlackPalette();
@ -396,6 +402,8 @@ InbvDisplayCompressedBitmap()
if (b == 0)
{
/* End of line */
cury = k / bminfo->bV5Width;
k = (cury + 1) * bminfo->bV5Width;
}
else if (b == 1)
{
@ -465,6 +473,7 @@ InbvFadeUpPalette()
LARGE_INTEGER Interval;
FADER_PALETTE_ENTRY FaderPalette[16];
FADER_PALETTE_ENTRY FaderPaletteDelta[16];
UCHAR ClrUsed;
RtlZeroMemory(&FaderPalette, sizeof(FaderPalette));
RtlZeroMemory(&FaderPaletteDelta, sizeof(FaderPaletteDelta));
@ -472,14 +481,16 @@ InbvFadeUpPalette()
bminfo = (PBITMAPV5HEADER)&BootimageBitmap[0];
Palette = (PRGBQUAD)&BootimageBitmap[bminfo->bV5Size];
for (i = 0; i < 16; i++)
if (bminfo->bV5ClrUsed)
ClrUsed = bminfo->bV5ClrUsed;
else
ClrUsed = 1 << bminfo->bV5BitCount;
for (i = 0; i < 16 && i < ClrUsed; i++)
{
if (i < bminfo->bV5ClrUsed)
{
FaderPaletteDelta[i].r = ((Palette[i].rgbRed << 8) / PALETTE_FADE_STEPS);
FaderPaletteDelta[i].g = ((Palette[i].rgbGreen << 8) / PALETTE_FADE_STEPS);
FaderPaletteDelta[i].b = ((Palette[i].rgbBlue << 8) / PALETTE_FADE_STEPS);
}
FaderPaletteDelta[i].r = ((Palette[i].rgbRed << 8) / PALETTE_FADE_STEPS);
FaderPaletteDelta[i].g = ((Palette[i].rgbGreen << 8) / PALETTE_FADE_STEPS);
FaderPaletteDelta[i].b = ((Palette[i].rgbBlue << 8) / PALETTE_FADE_STEPS);
}
for (i = 0; i < PALETTE_FADE_STEPS; i++)
@ -488,7 +499,7 @@ InbvFadeUpPalette()
READ_PORT_UCHAR(STATUS);
WRITE_PORT_UCHAR(ATTRIB, 0x00);
for (c = 0; c < bminfo->bV5ClrUsed; c++)
for (c = 0; c < ClrUsed; c++)
{
/* Add the delta */
FaderPalette[c].r += FaderPaletteDelta[c].r;