Re: [PATCH] Add support for resolution 800x600

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> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1477492
> https://docs.microsoft.com/en-us/windows-hardware/design/minimum/minimum-hardware-requirements-overview
> requires 800x600 to be supported.
> 
> Signed-off-by: Yuri Benditovich <yuri.benditovich@xxxxxxxxxx>
> ---
>  qxldod/QxlDod.cpp | 28 ++++++++++++++--------------
>  qxldod/QxlDod.h   |  6 ++++--
>  2 files changed, 18 insertions(+), 16 deletions(-)
> 
> diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
> index 4f508bd..ee97b09 100755
> --- a/qxldod/QxlDod.cpp
> +++ b/qxldod/QxlDod.cpp
> @@ -2572,15 +2572,15 @@ NTSTATUS
> VgaDevice::GetModeList(DXGK_DISPLAY_INFORMATION* pDispInfo)
>  
>          DbgPrint(TRACE_LEVEL_INFORMATION, ("ModeTemp = 0x%X %dx%d@%d\n",
>          ModeTemp, tmpModeInfo.XResolution, tmpModeInfo.YResolution,
>          tmpModeInfo.BitsPerPixel));
>  
> -        if (tmpModeInfo.XResolution >= MIN_WIDTH_SIZE &&
> -            tmpModeInfo.YResolution >= MIN_HEIGHT_SIZE &&
> +        if (tmpModeInfo.XResolution >= MINIMAL_WIDTH &&
> +            tmpModeInfo.YResolution >= MINIMAL_HEIGHT &&
>              tmpModeInfo.BitsPerPixel == BitsPerPixel &&
>              tmpModeInfo.PhysBasePtr != 0)
>          {
>              m_ModeNumbers[SuitableModeCount] = ModeTemp;
>              SetVideoModeInfo(SuitableModeCount, &tmpModeInfo);
> -            if (tmpModeInfo.XResolution == MIN_WIDTH_SIZE &&
> -                tmpModeInfo.YResolution == MIN_HEIGHT_SIZE)
> +            if (tmpModeInfo.XResolution == INITIAL_WIDTH &&
> +                tmpModeInfo.YResolution == INITIAL_HEIGHT)
>              {
>                  m_CurrentMode = (USHORT)SuitableModeCount;
>              }
> @@ -3186,8 +3186,8 @@ NTSTATUS
> QxlDevice::GetModeList(DXGK_DISPLAY_INFORMATION* pDispInfo)
>      UINT BitsPerPixel = BPPFromPixelFormat(pDispInfo->ColorFormat);
>      if (Width == 0 || Height == 0 || BitsPerPixel != QXL_BPP)
>      {
> -        Width = MIN_WIDTH_SIZE;
> -        Height = MIN_HEIGHT_SIZE;
> +        Width = MINIMAL_WIDTH;
> +        Height = MINIMAL_HEIGHT;
>          BitsPerPixel = QXL_BPP;
>      }
>  

Why not setting to the initial values here?

> @@ -3200,14 +3200,14 @@ NTSTATUS
> QxlDevice::GetModeList(DXGK_DISPLAY_INFORMATION* pDispInfo)
>  
>          DbgPrint(TRACE_LEVEL_INFORMATION, ("%s: modes[%d] x_res = %d, y_res
>          = %d, bits = %d BitsPerPixel = %d\n", __FUNCTION__, CurrentMode,
>          tmpModeInfo->x_res, tmpModeInfo->y_res, tmpModeInfo->bits,
>          BitsPerPixel));
>  
> -        if (tmpModeInfo->x_res >= MIN_WIDTH_SIZE &&
> -            tmpModeInfo->y_res >= MIN_HEIGHT_SIZE &&
> +        if (tmpModeInfo->x_res >= MINIMAL_WIDTH &&
> +            tmpModeInfo->y_res >= MINIMAL_HEIGHT &&
>              tmpModeInfo->bits == QXL_BPP)
>          {
>              m_ModeNumbers[SuitableModeCount] = SuitableModeCount;
>              SetVideoModeInfo(SuitableModeCount, tmpModeInfo);
> -            if (tmpModeInfo->x_res == MIN_WIDTH_SIZE &&
> -                tmpModeInfo->y_res == MIN_HEIGHT_SIZE)
> +            if (tmpModeInfo->x_res == INITIAL_WIDTH &&
> +                tmpModeInfo->y_res == INITIAL_HEIGHT)
>              {
>                  m_CurrentMode = SuitableModeCount;
>              }
> @@ -4883,9 +4883,9 @@ NTSTATUS
> QxlDevice::SetCustomDisplay(QXLEscapeSetCustomDisplay* custom_display)
>      UINT yres = custom_display->yres;
>      UINT bpp = QXL_BPP;
>      DbgPrint(TRACE_LEVEL_WARNING, ("%s - %d (%dx%d#%d)\n", __FUNCTION__,
>      m_Id, xres, yres, bpp));
> -    if (xres < MIN_WIDTH_SIZE || yres < MIN_HEIGHT_SIZE) {
> +    if (xres < MINIMAL_WIDTH || yres < MINIMAL_HEIGHT) {
>          DbgPrint(TRACE_LEVEL_VERBOSE, ("%s: (%dx%d#%d) less than (%dx%d)\n",
>          __FUNCTION__,
> -            xres, yres, bpp, MIN_WIDTH_SIZE, MIN_HEIGHT_SIZE));
> +            xres, yres, bpp, MINIMAL_WIDTH, MINIMAL_HEIGHT));
>      }
>      m_CustomMode =(USHORT) ((m_CustomMode == m_ModeCount-1)?  m_ModeCount -
>      2 : m_ModeCount - 1);
>  
> @@ -5147,8 +5147,8 @@ NTSTATUS
> HwDeviceInterface::AcquireDisplayInfo(DXGK_DISPLAY_INFORMATION& DispInf
>      if (DispInfo.Width == 0)
>      {
>          DispInfo.ColorFormat = D3DDDIFMT_A8R8G8B8;
> -        DispInfo.Width = MIN_WIDTH_SIZE;
> -        DispInfo.Height = MIN_HEIGHT_SIZE;
> +        DispInfo.Width = INITIAL_WIDTH;
> +        DispInfo.Height = INITIAL_HEIGHT;
>          DispInfo.Pitch = DispInfo.Width *
>          BPPFromPixelFormat(DispInfo.ColorFormat) / BITS_PER_BYTE;
>          DispInfo.TargetId = 0;
>      }
> diff --git a/qxldod/QxlDod.h b/qxldod/QxlDod.h
> index 695b83a..ba7e6a7 100755
> --- a/qxldod/QxlDod.h
> +++ b/qxldod/QxlDod.h
> @@ -19,8 +19,10 @@
>  #define BITS_PER_BYTE              8
>  
>  #define POINTER_SIZE               64
> -#define MIN_WIDTH_SIZE             1024
> -#define MIN_HEIGHT_SIZE            768
> +#define MINIMAL_WIDTH              800
> +#define MINIMAL_HEIGHT             600
> +#define INITIAL_WIDTH              1024
> +#define INITIAL_HEIGHT             768
>  #define QXL_BPP                    32
>  #define VGA_BPP                    24
>  

Patch is good but the renames MIN_WIDTH_SIZE -> MINIMAL_WIDTH and MIN_HEIGHT_SIZE -> MINIMAL_HEIGHT
are not really necessary and I don't think the new names are more clear than the old ones.

Frediano
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