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Metal depth rendering, matched to D3D

This commit is contained in:
Jack Andersen 2016-04-02 20:18:30 -10:00
parent 4c8e36f3e3
commit 843396095f
1 changed files with 70 additions and 11 deletions
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65
lib/graphicsdev/Metal.mm
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@ -280,6 +280,7 @@ class MetalTextureR : public ITextureR
m_depthTex = [ctx->m_dev newTextureWithDescriptor:desc];
}
{
m_passDesc = [MTLRenderPassDescriptor renderPassDescriptor];
m_passDesc.colorAttachments[0].texture = m_colorTex;
@ -289,6 +290,47 @@ class MetalTextureR : public ITextureR
m_passDesc.depthAttachment.texture = m_depthTex;
m_passDesc.depthAttachment.loadAction = MTLLoadActionLoad;
m_passDesc.depthAttachment.storeAction = MTLStoreActionStore;
m_clearDepthPassDesc.depthAttachment.clearDepth = 0.f;
}
{
m_clearDepthPassDesc = [MTLRenderPassDescriptor renderPassDescriptor];
m_clearDepthPassDesc.colorAttachments[0].texture = m_colorTex;
m_clearDepthPassDesc.colorAttachments[0].loadAction = MTLLoadActionLoad;
m_clearDepthPassDesc.colorAttachments[0].storeAction = MTLStoreActionStore;
m_clearDepthPassDesc.depthAttachment.texture = m_depthTex;
m_clearDepthPassDesc.depthAttachment.loadAction = MTLLoadActionClear;
m_clearDepthPassDesc.depthAttachment.storeAction = MTLStoreActionStore;
m_clearDepthPassDesc.depthAttachment.clearDepth = 0.f;
}
{
m_clearColorPassDesc = [MTLRenderPassDescriptor renderPassDescriptor];
m_clearColorPassDesc.colorAttachments[0].texture = m_colorTex;
m_clearColorPassDesc.colorAttachments[0].loadAction = MTLLoadActionClear;
m_clearColorPassDesc.colorAttachments[0].storeAction = MTLStoreActionStore;
m_clearColorPassDesc.depthAttachment.texture = m_depthTex;
m_clearColorPassDesc.depthAttachment.loadAction = MTLLoadActionLoad;
m_clearColorPassDesc.depthAttachment.storeAction = MTLStoreActionStore;
m_clearDepthPassDesc.depthAttachment.clearDepth = 0.f;
}
{
m_clearBothPassDesc = [MTLRenderPassDescriptor renderPassDescriptor];
m_clearBothPassDesc.colorAttachments[0].texture = m_colorTex;
m_clearBothPassDesc.colorAttachments[0].loadAction = MTLLoadActionClear;
m_clearBothPassDesc.colorAttachments[0].storeAction = MTLStoreActionStore;
m_clearBothPassDesc.depthAttachment.texture = m_depthTex;
m_clearBothPassDesc.depthAttachment.loadAction = MTLLoadActionClear;
m_clearBothPassDesc.depthAttachment.storeAction = MTLStoreActionStore;
m_clearDepthPassDesc.depthAttachment.clearDepth = 0.f;
}
}
}
@ -305,6 +347,9 @@ public:
id<MTLTexture> m_depthTex;
id<MTLTexture> m_colorBindTex;
MTLRenderPassDescriptor* m_passDesc;
MTLRenderPassDescriptor* m_clearDepthPassDesc;
MTLRenderPassDescriptor* m_clearColorPassDesc;
MTLRenderPassDescriptor* m_clearBothPassDesc;
~MetalTextureR() = default;
void resize(MetalContext* ctx, size_t width, size_t height)
@ -458,7 +503,7 @@ class MetalShaderPipeline : public IShaderPipeline
MTLDepthStencilDescriptor* dsDesc = [MTLDepthStencilDescriptor new];
if (depthTest)
dsDesc.depthCompareFunction = MTLCompareFunctionLessEqual;
dsDesc.depthCompareFunction = MTLCompareFunctionGreater;
dsDesc.depthWriteEnabled = depthWrite;
m_dsState = [ctx->m_dev newDepthStencilStateWithDescriptor:dsDesc];
}
@ -640,17 +685,30 @@ struct MetalCommandQueue : IGraphicsCommandQueue
}
MetalTextureR* m_boundTarget = nullptr;
void setRenderTarget(ITextureR* target)
void _setRenderTarget(ITextureR* target, bool clearColor, bool clearDepth)
{
MetalTextureR* ctarget = static_cast<MetalTextureR*>(target);
[m_enc endEncoding];
@autoreleasepool
{
if (clearColor && clearDepth)
m_enc = [m_cmdBuf renderCommandEncoderWithDescriptor:ctarget->m_clearBothPassDesc];
else if (clearColor)
m_enc = [m_cmdBuf renderCommandEncoderWithDescriptor:ctarget->m_clearColorPassDesc];
else if (clearDepth)
m_enc = [m_cmdBuf renderCommandEncoderWithDescriptor:ctarget->m_clearDepthPassDesc];
else
m_enc = [m_cmdBuf renderCommandEncoderWithDescriptor:ctarget->m_passDesc];
[m_enc setFrontFacingWinding:MTLWindingCounterClockwise];
}
m_boundTarget = ctarget;
}
void setRenderTarget(ITextureR* target)
{
_setRenderTarget(target, false, false);
}
void setViewport(const SWindowRect& rect)
{
MTLViewport vp = {double(rect.location[0]), double(rect.location[1]),
@ -697,7 +755,7 @@ struct MetalCommandQueue : IGraphicsCommandQueue
{
if (!m_boundTarget)
return;
setRenderTarget(m_boundTarget);
_setRenderTarget(m_boundTarget, render, depth);
}
void draw(size_t start, size_t count)
@ -753,6 +811,7 @@ struct MetalCommandQueue : IGraphicsCommandQueue
destinationOrigin:origin];
[blitEnc endEncoding];
m_enc = [m_cmdBuf renderCommandEncoderWithDescriptor:tex->m_passDesc];
[m_enc setFrontFacingWinding:MTLWindingCounterClockwise];
}
}
}