本文整理汇总了C#中PixelFormat.SizeInBits方法的典型用法代码示例。如果您正苦于以下问题：C# PixelFormat.SizeInBits方法的具体用法？C# PixelFormat.SizeInBits怎么用？C# PixelFormat.SizeInBits使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PixelFormat的用法示例。
在下文中一共展示了PixelFormat.SizeInBits方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ComputePitch
/// <summary>
/// Computes the pitch.
/// </summary>
/// <param name="fmt">The format.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="rowPitch">output row pitch.</param>
/// <param name="slicePitch">output slice pitch.</param>
public static void ComputePitch(PixelFormat fmt, int width, int height, out int rowPitch, out int slicePitch)
{
int widthCount = width;
int heightCount = height;
int bpp = fmt.SizeInBits();
if (fmt.IsCompressed())
{
widthCount = Math.Max(1, (width + 3) / 4);
heightCount = Math.Max(1, (height + 3) / 4);
rowPitch = widthCount * bpp;
slicePitch = rowPitch * heightCount;
}
else if (fmt.IsPacked())
{
rowPitch = ((width + 1) >> 1) * 4;
slicePitch = rowPitch * height;
}
else
{
if (bpp == 0)
bpp = fmt.SizeInBits();
rowPitch = (width * bpp + 7) / 8;
slicePitch = rowPitch * height;
}
}示例2: ComputePitch
internal static void ComputePitch(PixelFormat fmt, int width, int height, out int rowPitch, out int slicePitch, out int widthCount, out int heightCount, PitchFlags flags = PitchFlags.None)
{
widthCount = width;
heightCount = height;
if (fmt.IsCompressed())
{
int minWidth = 1;
int minHeight = 1;
int bpb = 8;
switch (fmt)
{
case PixelFormat.BC1_Typeless:
case PixelFormat.BC1_UNorm:
case PixelFormat.BC1_UNorm_SRgb:
case PixelFormat.BC4_Typeless:
case PixelFormat.BC4_UNorm:
case PixelFormat.BC4_SNorm:
case PixelFormat.ETC1:
bpb = 8;
break;
case PixelFormat.PVRTC_4bpp_RGB:
case PixelFormat.PVRTC_4bpp_RGBA:
case PixelFormat.PVRTC_II_4bpp:
minWidth = 8;
minHeight = 8;
break;
case PixelFormat.PVRTC_2bpp_RGBA:
case PixelFormat.PVRTC_II_2bpp:
minWidth = 16;
minHeight = 8;
bpb = 4;
break;
default:
bpb = 16;
break;
}
widthCount = Math.Max(1, (Math.Max(minWidth, width) + 3)) / 4;
heightCount = Math.Max(1, (Math.Max(minHeight, height) + 3)) / 4;
rowPitch = widthCount*bpb;
slicePitch = rowPitch*heightCount;
}
else if (fmt.IsPacked())
{
rowPitch = ((width + 1) >> 1) * 4;
slicePitch = rowPitch * height;
}
else
{
int bpp;
if ((flags & PitchFlags.Bpp24) != 0)
bpp = 24;
else if ((flags & PitchFlags.Bpp16) != 0)
bpp = 16;
else if ((flags & PitchFlags.Bpp8) != 0)
bpp = 8;
else
bpp = fmt.SizeInBits();
if ((flags & PitchFlags.LegacyDword) != 0)
{
// Special computation for some incorrectly created DDS files based on
// legacy DirectDraw assumptions about pitch alignment
rowPitch = ((width * bpp + 31) / 32) * sizeof(int);
slicePitch = rowPitch * height;
}
else
{
rowPitch = (width * bpp + 7) / 8;
slicePitch = rowPitch * height;
}
}
}