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metal: implement mesh cull modes

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This commit is contained in:
Alex Szpakowski
2021-12-24 18:46:06 -04:00
parent dab174b120
commit bcd64fe537
2 changed files with 24 additions and 5 deletions
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src/modules/graphics/metal/Graphics.h
+1
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@@ -212,6 +212,7 @@ private:
MTLRenderPassDescriptor *passDesc; MTLRenderPassDescriptor *passDesc;
uint32 dirtyRenderState; uint32 dirtyRenderState;
CullMode lastCullMode;
VertexAttributes lastVertexAttributes; VertexAttributes lastVertexAttributes;
bool windowHasStencil; bool windowHasStencil;
int shaderSwitches; int shaderSwitches;
src/modules/graphics/metal/Graphics.mm
+23 -5
View File
@@ -230,6 +230,7 @@ Graphics::Graphics()
, activeDrawable(nil) , activeDrawable(nil)
, passDesc(nil) , passDesc(nil)
, dirtyRenderState(STATEBIT_ALL) , dirtyRenderState(STATEBIT_ALL)
, lastCullMode(CULL_MAX_ENUM)
, windowHasStencil(false) , windowHasStencil(false)
, shaderSwitches(0) , shaderSwitches(0)
, requestedBackbufferMSAA(0) , requestedBackbufferMSAA(0)
@@ -576,6 +577,7 @@ id<MTLRenderCommandEncoder> Graphics::useRenderEncoder()
setBuffer(renderEncoder, renderBindings, SHADERSTAGE_VERTEX, DEFAULT_VERTEX_BUFFER_BINDING, defaultbuffer, 0); setBuffer(renderEncoder, renderBindings, SHADERSTAGE_VERTEX, DEFAULT_VERTEX_BUFFER_BINDING, defaultbuffer, 0);
dirtyRenderState = STATEBIT_ALL; dirtyRenderState = STATEBIT_ALL;
lastCullMode = CULL_MAX_ENUM;
} }
return renderEncoder; return renderEncoder;
@@ -795,7 +797,9 @@ void Graphics::applyRenderState(id<MTLRenderCommandEncoder> encoder, const Verte
if (dirtyState & STATEBIT_CULLMODE) if (dirtyState & STATEBIT_CULLMODE)
{ {
// TODO auto mode = lastCullMode == CULL_BACK ? MTLCullModeBack :
lastCullMode == CULL_FRONT ? MTLCullModeFront : MTLCullModeNone;
[encoder setCullMode:mode];
} }
if ((dirtyState & pipelineStateBits) != 0 || !(attributes == lastVertexAttributes)) if ((dirtyState & pipelineStateBits) != 0 || !(attributes == lastVertexAttributes))
@@ -1000,11 +1004,15 @@ void Graphics::draw(const DrawCommand &cmd)
{ @autoreleasepool { { @autoreleasepool {
id<MTLRenderCommandEncoder> encoder = useRenderEncoder(); id<MTLRenderCommandEncoder> encoder = useRenderEncoder();
if (cmd.cullMode != lastCullMode)
{
lastCullMode = cmd.cullMode;
dirtyRenderState |= STATEBIT_CULLMODE;
}
applyRenderState(encoder, *cmd.attributes); applyRenderState(encoder, *cmd.attributes);
applyShaderUniforms(encoder, Shader::current, cmd.texture); applyShaderUniforms(encoder, Shader::current, cmd.texture);
[encoder setCullMode:MTLCullModeNone];
setVertexBuffers(encoder, cmd.buffers, renderBindings); setVertexBuffers(encoder, cmd.buffers, renderBindings);
[encoder drawPrimitives:getMTLPrimitiveType(cmd.primitiveType) [encoder drawPrimitives:getMTLPrimitiveType(cmd.primitiveType)
@@ -1019,6 +1027,12 @@ void Graphics::draw(const DrawIndexedCommand &cmd)
{ @autoreleasepool { { @autoreleasepool {
id<MTLRenderCommandEncoder> encoder = useRenderEncoder(); id<MTLRenderCommandEncoder> encoder = useRenderEncoder();
if (cmd.cullMode != lastCullMode)
{
lastCullMode = cmd.cullMode;
dirtyRenderState |= STATEBIT_CULLMODE;
}
applyRenderState(encoder, *cmd.attributes); applyRenderState(encoder, *cmd.attributes);
applyShaderUniforms(encoder, Shader::current, cmd.texture); applyShaderUniforms(encoder, Shader::current, cmd.texture);
@@ -1045,11 +1059,15 @@ void Graphics::drawQuads(int start, int count, const VertexAttributes &attribute
id<MTLRenderCommandEncoder> encoder = useRenderEncoder(); id<MTLRenderCommandEncoder> encoder = useRenderEncoder();
if (lastCullMode != CULL_NONE)
{
lastCullMode = CULL_NONE;
dirtyRenderState |= STATEBIT_CULLMODE;
}
applyRenderState(encoder, attributes); applyRenderState(encoder, attributes);
applyShaderUniforms(encoder, Shader::current, texture); applyShaderUniforms(encoder, Shader::current, texture);
[encoder setCullMode:MTLCullModeNone];
setVertexBuffers(encoder, &buffers, renderBindings); setVertexBuffers(encoder, &buffers, renderBindings);
id<MTLBuffer> ib = getMTLBuffer(quadIndexBuffer); id<MTLBuffer> ib = getMTLBuffer(quadIndexBuffer);