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Fix error when dual source blend is used (#1610)
* Fix error when dual source blend is used * Ensure framebuffer
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parent
e4777717cd
commit
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@ -13,6 +13,9 @@ namespace Ryujinx.Graphics.OpenGL
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private readonly TextureView[] _colors;
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private int _colorsCount;
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private bool _dualSourceBlend;
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public Framebuffer()
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{
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Handle = GL.GenFramebuffer();
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@ -97,7 +100,35 @@ namespace Ryujinx.Graphics.OpenGL
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}
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}
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public void SetDualSourceBlend(bool enable)
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{
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bool oldEnable = _dualSourceBlend;
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_dualSourceBlend = enable;
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// When dual source blend is used,
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// we can only have one draw buffer.
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if (enable)
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{
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GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
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}
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else if (oldEnable)
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{
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SetDrawBuffersImpl(_colorsCount);
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}
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}
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public void SetDrawBuffers(int colorsCount)
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{
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if (_colorsCount != colorsCount && !_dualSourceBlend)
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{
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SetDrawBuffersImpl(colorsCount);
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}
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_colorsCount = colorsCount;
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}
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private void SetDrawBuffersImpl(int colorsCount)
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{
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DrawBuffersEnum[] drawBuffers = new DrawBuffersEnum[colorsCount];
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@ -557,6 +557,32 @@ namespace Ryujinx.Graphics.OpenGL
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(BlendingFactorSrc)blend.AlphaSrcFactor.Convert(),
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(BlendingFactorDest)blend.AlphaDstFactor.Convert());
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static bool IsDualSource(BlendFactor factor)
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{
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switch (factor)
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{
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case BlendFactor.Src1Color:
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case BlendFactor.Src1ColorGl:
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case BlendFactor.Src1Alpha:
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case BlendFactor.Src1AlphaGl:
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case BlendFactor.OneMinusSrc1Color:
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case BlendFactor.OneMinusSrc1ColorGl:
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case BlendFactor.OneMinusSrc1Alpha:
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case BlendFactor.OneMinusSrc1AlphaGl:
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return true;
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}
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return false;
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}
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EnsureFramebuffer();
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_framebuffer.SetDualSourceBlend(
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IsDualSource(blend.ColorSrcFactor) ||
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IsDualSource(blend.ColorDstFactor) ||
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IsDualSource(blend.AlphaSrcFactor) ||
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IsDualSource(blend.AlphaDstFactor));
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if (_blendConstant != blend.BlendConstant)
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{
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_blendConstant = blend.BlendConstant;
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