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Fix error when dual source blend is used (#1610)

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* Fix error when dual source blend is used

* Ensure framebuffer
This commit is contained in:
gdkchan 2020-10-12 21:50:41 -03:00 committed by GitHub
parent e4777717cd
commit 6a51b628f9
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2 changed files with 57 additions and 0 deletions
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31
Ryujinx.Graphics.OpenGL/Framebuffer.cs
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@ -13,6 +13,9 @@ namespace Ryujinx.Graphics.OpenGL
private readonly TextureView[] _colors;
private int _colorsCount;
private bool _dualSourceBlend;
public Framebuffer()
{
Handle = GL.GenFramebuffer();
@ -97,7 +100,35 @@ namespace Ryujinx.Graphics.OpenGL
}
}
public void SetDualSourceBlend(bool enable)
{
bool oldEnable = _dualSourceBlend;
_dualSourceBlend = enable;
// When dual source blend is used,
// we can only have one draw buffer.
if (enable)
{
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
}
else if (oldEnable)
{
SetDrawBuffersImpl(_colorsCount);
}
}
public void SetDrawBuffers(int colorsCount)
{
if (_colorsCount != colorsCount && !_dualSourceBlend)
{
SetDrawBuffersImpl(colorsCount);
}
_colorsCount = colorsCount;
}
private void SetDrawBuffersImpl(int colorsCount)
{
DrawBuffersEnum[] drawBuffers = new DrawBuffersEnum[colorsCount];

26
Ryujinx.Graphics.OpenGL/Pipeline.cs
View file

@ -557,6 +557,32 @@ namespace Ryujinx.Graphics.OpenGL
(BlendingFactorSrc)blend.AlphaSrcFactor.Convert(),
(BlendingFactorDest)blend.AlphaDstFactor.Convert());
static bool IsDualSource(BlendFactor factor)
{
switch (factor)
{
case BlendFactor.Src1Color:
case BlendFactor.Src1ColorGl:
case BlendFactor.Src1Alpha:
case BlendFactor.Src1AlphaGl:
case BlendFactor.OneMinusSrc1Color:
case BlendFactor.OneMinusSrc1ColorGl:
case BlendFactor.OneMinusSrc1Alpha:
case BlendFactor.OneMinusSrc1AlphaGl:
return true;
}
return false;
}
EnsureFramebuffer();
_framebuffer.SetDualSourceBlend(
IsDualSource(blend.ColorSrcFactor) ||
IsDualSource(blend.ColorDstFactor) ||
IsDualSource(blend.AlphaSrcFactor) ||
IsDualSource(blend.AlphaDstFactor));
if (_blendConstant != blend.BlendConstant)
{
_blendConstant = blend.BlendConstant;