/// <summary>
/// Updates host scissor test state based on current GPU state.
/// </summary>
private void UpdateScissorState()
{
for (int index = 0; index < Constants.TotalViewports; index++)
{
ScissorState scissor = _state.State.ScissorState[index];
bool enable = scissor.Enable && (scissor.X1 != 0 || scissor.Y1 != 0 || scissor.X2 != 0xffff || scissor.Y2 != 0xffff);
if (enable)
{
int x = scissor.X1;
int y = scissor.Y1;
int width = scissor.X2 - x;
int height = scissor.Y2 - y;
float scale = _channel.TextureManager.RenderTargetScale;
if (scale != 1f)
{
x = (int)(x * scale);
y = (int)(y * scale);
width = (int)Math.Ceiling(width * scale);
height = (int)Math.Ceiling(height * scale);
}
_context.Renderer.Pipeline.SetScissor(index, true, x, y, width, height);
}
else
{
_context.Renderer.Pipeline.SetScissor(index, false, 0, 0, 0, 0);
}
}
}
/// <summary>
/// Updates host scissor test state based on current GPU state.
/// </summary>
private void UpdateScissorState()
{
const int MinX = 0;
const int MinY = 0;
const int MaxW = 0xffff;
const int MaxH = 0xffff;
Span <Rectangle <int> > regions = stackalloc Rectangle <int> [Constants.TotalViewports];
for (int index = 0; index < Constants.TotalViewports; index++)
{
ScissorState scissor = _state.State.ScissorState[index];
bool enable = scissor.Enable && (scissor.X1 != MinX ||
scissor.Y1 != MinY ||
scissor.X2 != MaxW ||
scissor.Y2 != MaxH);
if (enable)
{
int x = scissor.X1;
int y = scissor.Y1;
int width = scissor.X2 - x;
int height = scissor.Y2 - y;
float scale = _channel.TextureManager.RenderTargetScale;
if (scale != 1f)
{
x = (int)(x * scale);
y = (int)(y * scale);
width = (int)Math.Ceiling(width * scale);
height = (int)Math.Ceiling(height * scale);
}
regions[index] = new Rectangle <int>(x, y, width, height);
}
else
{
regions[index] = new Rectangle <int>(MinX, MinY, MaxW, MaxH);
}
}
_context.Renderer.Pipeline.SetScissors(regions);
}
/// <summary>
/// Updates host scissor test state based on current GPU state.
/// </summary>
public void UpdateScissorState()
{
for (int index = 0; index < Constants.TotalViewports; index++)
{
ScissorState scissor = _state.State.ScissorState[index];
bool enable = scissor.Enable && (scissor.X1 != 0 || scissor.Y1 != 0 || scissor.X2 != 0xffff || scissor.Y2 != 0xffff);
if (enable)
{
int x = scissor.X1;
int y = scissor.Y1;
int width = scissor.X2 - x;
int height = scissor.Y2 - y;
if (_state.State.YControl.HasFlag(YControl.NegateY))
{
ref var screenScissor = ref _state.State.ScreenScissorState;
y = screenScissor.Height - height - y;
if (y < 0)
{
height += y;
y = 0;
}
}
float scale = _channel.TextureManager.RenderTargetScale;
if (scale != 1f)
{
x = (int)(x * scale);
y = (int)(y * scale);
width = (int)Math.Ceiling(width * scale);
height = (int)Math.Ceiling(height * scale);
}
_context.Renderer.Pipeline.SetScissor(index, true, x, y, width, height);
}
