[khornicek] 49267: [WIN32K] Simplify the RLE hack and avoid code duplication. Bail out of UserEnumDisplaySettings early in case invalid ModeNum was requested. Use default BPP value in UserChangeDis...
24 Oct
2010
24 Oct
'10
11:40 p.m.
Author: khornicek
Date: Sun Oct 24 23:40:23 2010
New Revision: 49267
URL: http://svn.reactos.org/svn/reactos?rev=49267&view=rev
Log:
[WIN32K]
Simplify the RLE hack and avoid code duplication.
Bail out of UserEnumDisplaySettings early in case invalid ModeNum was requested.
Use default BPP value in UserChangeDisplaySettings if DM_BITSPERPEL is not set. Partially
fixes "fullscreen issue" as described on the yarotows wiki page.
Remove some unused variables + misc cleanup.
Modified:
branches/reactos-yarotows/subsystems/win32/win32k/eng/device.c
branches/reactos-yarotows/subsystems/win32/win32k/eng/rlecomp.c
branches/reactos-yarotows/subsystems/win32/win32k/include/eng.h
branches/reactos-yarotows/subsystems/win32/win32k/ntuser/display.c
branches/reactos-yarotows/subsystems/win32/win32k/objects/bitmaps.c
Modified: branches/reactos-yarotows/subsystems/win32/win32k/eng/device.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/eng/device.c [iso-8859-1] (original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/eng/device.c [iso-8859-1] Sun Oct 24
23:40:23 2010
@@ -243,9 +243,9 @@
if (pustrDevice)
{
/* Loop through the list of devices */
- for (pGraphicsDevice = gpGraphicsDeviceFirst, i = 0;
+ for (pGraphicsDevice = gpGraphicsDeviceFirst;
pGraphicsDevice;
- pGraphicsDevice = pGraphicsDevice->pNextGraphicsDevice, i++)
+ pGraphicsDevice = pGraphicsDevice->pNextGraphicsDevice)
{
/* Compare the device name */
RtlInitUnicodeString(&ustrCurrent, pGraphicsDevice->szWinDeviceName);
Modified: branches/reactos-yarotows/subsystems/win32/win32k/eng/rlecomp.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/eng/rlecomp.c [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/eng/rlecomp.c [iso-8859-1] Sun Oct
24 23:40:23 2010
@@ -18,48 +18,59 @@
RLE_DELTA = 2 /* Delta */
};
-VOID Decompress4bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG Delta)
+VOID DecompressBitmap(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG
Delta, ULONG Format)
{
- int x = 0;
- int y = Size.cy - 1;
- int c;
- int length;
- int width = ((Size.cx+1)/2);
- int height = Size.cy - 1;
+ INT x = 0;
+ INT y = Size.cy - 1;
+ INT c;
+ INT length;
+ INT width;
+ INT height = Size.cy - 1;
BYTE *begin = CompressedBits;
BYTE *bits = CompressedBits;
BYTE *temp;
- while (y >= 0)
+ INT shift = 0;
+
+ if (Format == BMF_4RLE)
+ shift = 1;
+ else if(Format != BMF_8RLE)
+ return;
+
+ width = ((Size.cx + shift) >> shift);
+
+ _SEH2_TRY
{
- length = *bits++ / 2;
- if (length)
+ while (y >= 0)
{
- c = *bits++;
- while (length--)
+ length = (*bits++) >> shift;
+ if (length)
{
- if (x >= width) break;
- temp = UncompressedBits + (((height - y) * Delta) + x);
- x++;
- *temp = c;
+ c = *bits++;
+ while (length--)
+ {
+ if (x >= width) break;
+ temp = UncompressedBits + (((height - y) * Delta) + x);
+ x++;
+ *temp = c;
+ }
}
- }
- else
- {
- length = *bits++;
- switch (length)
+ else
{
+ length = *bits++;
+ switch (length)
+ {
case RLE_EOL:
x = 0;
y--;
break;
case RLE_END:
- return;
+ _SEH2_YIELD(return);
case RLE_DELTA:
- x += (*bits++)/2;
- y -= (*bits++)/2;
+ x += (*bits++) >> shift;
+ y -= (*bits++) >> shift;
break;
default:
- length /= 2;
+ length = length >> shift;
while (length--)
{
c = *bits++;
@@ -74,67 +85,15 @@
{
bits++;
}
+ }
}
}
}
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ DPRINT1("Decoding error\n");
+ }
+ _SEH2_END;
+
+ return;
}
-
-VOID Decompress8bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG Delta)
-{
- int x = 0;
- int y = Size.cy - 1;
- int c;
- int length;
- int width = Size.cx;
- int height = Size.cy - 1;
- BYTE *begin = CompressedBits;
- BYTE *bits = CompressedBits;
- BYTE *temp;
- while (y >= 0)
- {
- length = *bits++;
- if (length)
- {
- c = *bits++;
- while (length--)
- {
- if (x >= width) break;
- temp = UncompressedBits + (((height - y) * Delta) + x);
- x++;
- *temp = c;
- }
- }
- else
- {
- length = *bits++;
- switch (length)
- {
- case RLE_EOL:
- x = 0;
- y--;
- break;
- case RLE_END:
- return;
- case RLE_DELTA:
- x += *bits++;
- y -= *bits++;
- break;
- default:
- while (length--)
- {
- c = *bits++;
- if (x < width)
- {
- temp = UncompressedBits + (((height - y) * Delta) + x);
- x++;
- *temp = c;
- }
- }
- if ((bits - begin) & 1)
- {
- bits++;
- }
- }
- }
- }
-}
Modified: branches/reactos-yarotows/subsystems/win32/win32k/include/eng.h
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/include/eng.h [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/include/eng.h [iso-8859-1] Sun Oct
24 23:40:23 2010
@@ -36,6 +36,4 @@
IN SIZE_T cjSize,
IN ULONG ulTag);
-VOID Decompress4bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG
Delta);
-VOID Decompress8bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG
Delta);
-
+VOID DecompressBitmap(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG
Delta, ULONG iFormat);
Modified: branches/reactos-yarotows/subsystems/win32/win32k/ntuser/display.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/ntuser/display.c [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/ntuser/display.c [iso-8859-1] Sun
Oct 24 23:40:23 2010
@@ -430,11 +430,12 @@
PDEVMODEENTRY pdmentry;
ULONG i, iFoundMode;
- DPRINT1("Enter UserEnumDisplaySettings('%ls', %ld)\n",
+ DPRINT("Enter UserEnumDisplaySettings('%ls', %ld)\n",
pustrDevice ? pustrDevice->Buffer : NULL, iModeNum);
/* Ask gdi for the GRAPHICS_DEVICE */
pGraphicsDevice = EngpFindGraphicsDevice(pustrDevice, 0, 0);
+
if (!pGraphicsDevice)
{
/* No device found */
@@ -442,19 +443,19 @@
return STATUS_UNSUCCESSFUL;
}
- if (iModeNum == 0)
- {
- DPRINT1("Should initialize modes somehow\n");
- // Update DISPLAY_DEVICEs?
- }
+ if (iModeNum >= pGraphicsDevice->cDevModes)
+ return STATUS_NO_MORE_ENTRIES;
iFoundMode = 0;
for (i = 0; i < pGraphicsDevice->cDevModes; i++)
{
pdmentry = &pGraphicsDevice->pDevModeList[i];
-// if ((!(dwFlags & EDS_RAWMODE) && (pdmentry->dwFlags & 1)) ||
// FIXME!
-// (dwFlags & EDS_RAWMODE))
+ /* FIXME: consider EDS_RAWMODE */
+#if 0
+ if ((!(dwFlags & EDS_RAWMODE) && (pdmentry->dwFlags & 1)) ||!
+ (dwFlags & EDS_RAWMODE))
+#endif
{
/* Is this the one we want? */
if (iFoundMode == iModeNum)
@@ -536,7 +537,7 @@
DEVMODEW dmReg, *pdm;
DPRINT1("Enter NtUserEnumDisplaySettings(%ls, %ld)\n",
- pustrDevice ? pustrDevice->Buffer:0, iModeNum);
+ pustrDevice ? pustrDevice->Buffer : 0, iModeNum);
if (pustrDevice)
{
@@ -668,8 +669,12 @@
}
/* Fixup values */
- if((dm.dmFields & DM_BITSPERPEL) && (dm.dmBitsPerPel == 0))
+ if(dm.dmBitsPerPel == 0 || !(dm.dmFields & DM_BITSPERPEL))
+ {
dm.dmBitsPerPel = ppdev->pdmwDev->dmBitsPerPel;
+ dm.dmFields |= DM_BITSPERPEL;
+ }
+
if((dm.dmFields & DM_DISPLAYFREQUENCY) && (dm.dmDisplayFrequency == 0))
dm.dmDisplayFrequency = ppdev->pdmwDev->dmDisplayFrequency;
Modified: branches/reactos-yarotows/subsystems/win32/win32k/objects/bitmaps.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactos-yarotows/subsystems/win…
==============================================================================
--- branches/reactos-yarotows/subsystems/win32/win32k/objects/bitmaps.c [iso-8859-1]
(original)
+++ branches/reactos-yarotows/subsystems/win32/win32k/objects/bitmaps.c [iso-8859-1] Sun
Oct 24 23:40:23 2010
@@ -101,20 +101,13 @@
pso = &psurf->SurfObj;
/* The infamous RLE hack */
- if (iFormat == BMF_4RLE)
- {
- sizl.cx = nWidth; sizl.cy = nHeight;
+ if (iFormat == BMF_4RLE || iFormat == BMF_8RLE)
+ {
+ sizl.cx = nWidth;
+ sizl.cy = nHeight;
pvCompressedBits = pvBits;
pvBits = EngAllocMem(FL_ZERO_MEMORY, pso->cjBits, TAG_DIB);
- Decompress4bpp(sizl, pvCompressedBits, pvBits, pso->lDelta);
- fjBitmap |= BMF_RLE_HACK;
- }
- else if (iFormat == BMF_8RLE)
- {
- sizl.cx = nWidth; sizl.cy = nHeight;
- pvCompressedBits = pvBits;
- pvBits = EngAllocMem(FL_ZERO_MEMORY, pso->cjBits, TAG_DIB);
- Decompress8bpp(sizl, pvCompressedBits, pvBits, pso->lDelta);
+ DecompressBitmap(sizl, pvCompressedBits, pvBits, pso->lDelta, iFormat);
fjBitmap |= BMF_RLE_HACK;
}
@@ -239,10 +232,7 @@
if (Dc->dctype != DC_TYPE_MEMORY)
{
PSURFACE psurf;
- SIZEL size;
-
- size.cx = abs(Width);
- size.cy = abs(Height);
+
Bmp = GreCreateBitmap(abs(Width),
abs(Height),
1,
@@ -268,11 +258,9 @@
{
if (Count == sizeof(BITMAP))
{
- SIZEL size;
PSURFACE psurfBmp;
- size.cx = abs(Width);
- size.cy = abs(Height);
- Bmp = GreCreateBitmap(abs(Width),
+
+ Bmp = GreCreateBitmap(abs(Width),
abs(Height),
1,
dibs.dsBm.bmBitsPixel,
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