ios: apply clang-format to Objective-C++ sources (#4060)
This commit is contained in:
Bart Louwers
@@ -10,224 +10,208 @@
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#import <MetalKit/MetalKit.h>
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#import "Mapbox.h"
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typedef struct
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{
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vector_float2 position;
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vector_float4 color;
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typedef struct {
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vector_float2 position;
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vector_float4 color;
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} Vertex;
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@interface PluginLayerExampleMetalRendering () {
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// The render pipeline state
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id<MTLRenderPipelineState> _pipelineState;
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id<MTLDepthStencilState> _depthStencilStateWithoutStencil;
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// Properties
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float _offsetX;
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float _offsetY;
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float _scale;
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float _r, _g, _b, _a;
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// The render pipeline state
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id<MTLRenderPipelineState> _pipelineState;
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id<MTLDepthStencilState> _depthStencilStateWithoutStencil;
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// Properties
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float _offsetX;
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float _offsetY;
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float _scale;
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float _r, _g, _b, _a;
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}
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@end
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@implementation PluginLayerExampleMetalRendering
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// This is a static class method that is used by the MLNMapView to create the
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// required marshalling classes to interface with the MapLibre core.
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+(MLNPluginLayerCapabilities *)layerCapabilities {
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+ (MLNPluginLayerCapabilities *)layerCapabilities {
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MLNPluginLayerCapabilities *tempResult = [[MLNPluginLayerCapabilities alloc] init];
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tempResult.layerID = @"plugin-layer-metal-rendering";
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tempResult.requiresPass3D = YES;
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MLNPluginLayerCapabilities *tempResult = [[MLNPluginLayerCapabilities alloc] init];
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tempResult.layerID = @"plugin-layer-metal-rendering";
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tempResult.requiresPass3D = YES;
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// Define the paint properties that this layer implements and
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// what types they are
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tempResult.layerProperties = @[
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// The scale property
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[MLNPluginLayerProperty propertyWithName:@"scale"
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propertyType:MLNPluginLayerPropertyTypeSingleFloat
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defaultValue:@(1.0)],
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// Define the paint properties that this layer implements and
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// what types they are
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tempResult.layerProperties = @[
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// The scale property
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[MLNPluginLayerProperty propertyWithName:@"scale"
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propertyType:MLNPluginLayerPropertyTypeSingleFloat
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defaultValue:@(1.0)],
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// The fill color property
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[MLNPluginLayerProperty propertyWithName:@"fill-color"
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propertyType:MLNPluginLayerPropertyTypeColor
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defaultValue:[UIColor blueColor]]
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// The fill color property
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[MLNPluginLayerProperty propertyWithName:@"fill-color"
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propertyType:MLNPluginLayerPropertyTypeColor
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defaultValue:[UIColor blueColor]]
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];
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return tempResult;
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];
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return tempResult;
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}
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- (void)createShaders:(MLNMapView *)mapView {
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MLNBackendResource* resource = [mapView backendResource];
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MLNBackendResource *resource = [mapView backendResource];
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NSString *shaderSource = @
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NSString *shaderSource =
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@
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" #include <metal_stdlib>\n"
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" using namespace metal;\n"
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" typedef struct\n"
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" {\n"
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" vector_float2 position;\n"
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" vector_float4 color;\n"
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" } Vertex;\n"
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" struct RasterizerData\n"
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" {\n"
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" float4 position [[position]];\n"
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" float4 color;\n"
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" };\n"
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" vertex RasterizerData\n"
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" vertexShader(uint vertexID [[vertex_id]],\n"
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" constant Vertex *vertices [[buffer(0)]],\n"
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" constant vector_uint2 *viewportSizePointer [[buffer(1)]])\n"
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" {\n"
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" RasterizerData out;\n"
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" float2 pixelSpacePosition = vertices[vertexID].position.xy;\n"
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" vector_float2 viewportSize = vector_float2(*viewportSizePointer);\n"
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" out.position = vector_float4(0.0, 0.0, 0.0, 1.0);\n"
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" out.position.xy = pixelSpacePosition / (viewportSize / 2.0);\n"
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" out.color = vertices[vertexID].color;\n"
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" return out;\n"
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" }\n"
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" fragment float4 fragmentShader(RasterizerData in [[stage_in]])\n"
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" {\n"
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" return in.color;\n"
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" }\n";
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" using namespace metal;\n"
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" typedef struct\n"
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" {\n"
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" vector_float2 position;\n"
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" vector_float4 color;\n"
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" } Vertex;\n"
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" struct RasterizerData\n"
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" {\n"
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" float4 position [[position]];\n"
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" float4 color;\n"
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" };\n"
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" vertex RasterizerData\n"
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" vertexShader(uint vertexID [[vertex_id]],\n"
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" constant Vertex *vertices [[buffer(0)]],\n"
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" constant vector_uint2 *viewportSizePointer [[buffer(1)]])\n"
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" {\n"
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" RasterizerData out;\n"
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" float2 pixelSpacePosition = vertices[vertexID].position.xy;\n"
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" vector_float2 viewportSize = vector_float2(*viewportSizePointer);\n"
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" out.position = vector_float4(0.0, 0.0, 0.0, 1.0);\n"
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" out.position.xy = pixelSpacePosition / (viewportSize / 2.0);\n"
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" out.color = vertices[vertexID].color;\n"
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" return out;\n"
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" }\n"
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" fragment float4 fragmentShader(RasterizerData in [[stage_in]])\n"
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" {\n"
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" return in.color;\n"
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" }\n";
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NSError *error = nil;
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id<MTLDevice> _device = resource.device;
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id<MTLLibrary> library = [_device newLibraryWithSource:shaderSource options:nil error:&error];
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NSAssert(library, @"Error compiling shaders: %@", error);
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id<MTLFunction> vertexFunction = [library newFunctionWithName:@"vertexShader"];
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id<MTLFunction> fragmentFunction = [library newFunctionWithName:@"fragmentShader"];
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NSError *error = nil;
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id<MTLDevice> _device = resource.device;
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id<MTLLibrary> library = [_device newLibraryWithSource:shaderSource options:nil error:&error];
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NSAssert(library, @"Error compiling shaders: %@", error);
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id<MTLFunction> vertexFunction = [library newFunctionWithName:@"vertexShader"];
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id<MTLFunction> fragmentFunction = [library newFunctionWithName:@"fragmentShader"];
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// Configure a pipeline descriptor that is used to create a pipeline state.
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MTLRenderPipelineDescriptor *pipelineStateDescriptor = [[MTLRenderPipelineDescriptor alloc] init];
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pipelineStateDescriptor.label = @"Simple Pipeline";
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pipelineStateDescriptor.vertexFunction = vertexFunction;
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pipelineStateDescriptor.fragmentFunction = fragmentFunction;
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pipelineStateDescriptor.colorAttachments[0].pixelFormat = resource.mtkView.colorPixelFormat;
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pipelineStateDescriptor.depthAttachmentPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
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pipelineStateDescriptor.stencilAttachmentPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
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// Configure a pipeline descriptor that is used to create a pipeline state.
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MTLRenderPipelineDescriptor *pipelineStateDescriptor = [[MTLRenderPipelineDescriptor alloc] init];
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pipelineStateDescriptor.label = @"Simple Pipeline";
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pipelineStateDescriptor.vertexFunction = vertexFunction;
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pipelineStateDescriptor.fragmentFunction = fragmentFunction;
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pipelineStateDescriptor.colorAttachments[0].pixelFormat = resource.mtkView.colorPixelFormat;
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pipelineStateDescriptor.depthAttachmentPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
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pipelineStateDescriptor.stencilAttachmentPixelFormat = MTLPixelFormatDepth32Float_Stencil8;
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_pipelineState = [_device newRenderPipelineStateWithDescriptor:pipelineStateDescriptor
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error:&error];
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NSAssert(_pipelineState, @"Failed to create pipeline state: %@", error);
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_pipelineState = [_device newRenderPipelineStateWithDescriptor:pipelineStateDescriptor
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error:&error];
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NSAssert(_pipelineState, @"Failed to create pipeline state: %@", error);
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// Notice that we don't configure the stencilTest property, leaving stencil testing disabled
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MTLDepthStencilDescriptor *depthStencilDescriptor = [[MTLDepthStencilDescriptor alloc] init];
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depthStencilDescriptor.depthCompareFunction = MTLCompareFunctionAlways; // Or another value as needed
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depthStencilDescriptor.depthWriteEnabled = NO;
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_depthStencilStateWithoutStencil = [_device newDepthStencilStateWithDescriptor:depthStencilDescriptor];
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// Notice that we don't configure the stencilTest property, leaving stencil testing disabled
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MTLDepthStencilDescriptor *depthStencilDescriptor = [[MTLDepthStencilDescriptor alloc] init];
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depthStencilDescriptor.depthCompareFunction =
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MTLCompareFunctionAlways; // Or another value as needed
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depthStencilDescriptor.depthWriteEnabled = NO;
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_depthStencilStateWithoutStencil =
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[_device newDepthStencilStateWithDescriptor:depthStencilDescriptor];
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}
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// Setup the rendering environment
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-(void)setupRendering:(MLNMapView *)mapView {
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[self createShaders:mapView];
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if (_scale == 0) {
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_scale = 1;
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}
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// Set the initial
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_a = 1;
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- (void)setupRendering:(MLNMapView *)mapView {
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[self createShaders:mapView];
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if (_scale == 0) {
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_scale = 1;
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}
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// Set the initial
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_a = 1;
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}
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// The overrides
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-(void)onRenderLayer:(MLNMapView *)mapView
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renderEncoder:(id<MTLRenderCommandEncoder>)renderEncoder {
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- (void)onRenderLayer:(MLNMapView *)mapView
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renderEncoder:(id<MTLRenderCommandEncoder>)renderEncoder {
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MLNBackendResource *resource = [mapView backendResource];
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MLNBackendResource* resource = [mapView backendResource];
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if (_pipelineState == nil) {
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[self setupRendering:mapView];
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}
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if (_pipelineState == nil) {
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[self setupRendering:mapView];
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}
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if (renderEncoder == nil) {
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return;
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}
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if (renderEncoder == nil) {
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return;
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}
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vector_uint2 _viewportSize;
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_viewportSize.x = resource.mtkView.drawableSize.width;
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_viewportSize.y = resource.mtkView.drawableSize.height;
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Vertex triangleVerticesWithColor[] = {
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// 2D positions, RGBA colors
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{{(250 + _offsetX) * _scale, (-250 + _offsetY) * _scale}, {1, 1, 1, _a}},
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{{(-250 + _offsetX) * _scale, (-250 + _offsetY) * _scale}, {1, 1, 1, _a}},
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{{(0 + _offsetX) * _scale, (250 + _offsetY) * _scale}, {_r, _g, _b, _a}},
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};
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vector_uint2 _viewportSize;
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_viewportSize.x = resource.mtkView.drawableSize.width;
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_viewportSize.y = resource.mtkView.drawableSize.height;
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[renderEncoder setRenderPipelineState:_pipelineState];
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[renderEncoder setDepthStencilState:_depthStencilStateWithoutStencil];
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Vertex triangleVerticesWithColor[] = {
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// 2D positions, RGBA colors
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{ { (250 + _offsetX) * _scale, (-250 + _offsetY) * _scale }, { 1, 1, 1, _a } },
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{ { (-250 + _offsetX) * _scale, (-250 + _offsetY) * _scale }, { 1, 1, 1, _a} },
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{ { (0 + _offsetX) * _scale, (250 + _offsetY) * _scale }, { _r, _g, _b, _a } },
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};
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// Pass in the parameter data.
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[renderEncoder setVertexBytes:triangleVerticesWithColor
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length:sizeof(triangleVerticesWithColor)
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atIndex:0];
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[renderEncoder setRenderPipelineState:_pipelineState];
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[renderEncoder setDepthStencilState:_depthStencilStateWithoutStencil];
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[renderEncoder setVertexBytes:&_viewportSize length:sizeof(_viewportSize) atIndex:1];
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// Pass in the parameter data.
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[renderEncoder setVertexBytes:triangleVerticesWithColor
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length:sizeof(triangleVerticesWithColor)
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atIndex:0];
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[renderEncoder setVertexBytes:&_viewportSize
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length:sizeof(_viewportSize)
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atIndex:1];
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// Draw the triangle.
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[renderEncoder drawPrimitives:MTLPrimitiveTypeTriangle
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vertexStart:0
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vertexCount:3];
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// Draw the triangle.
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[renderEncoder drawPrimitives:MTLPrimitiveTypeTriangle vertexStart:0 vertexCount:3];
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}
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-(void)onUpdateLayer:(MLNPluginLayerDrawingContext)drawingContext {
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// This is called before the render call and is a place where
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// any animations/etc can be updated
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- (void)onUpdateLayer:(MLNPluginLayerDrawingContext)drawingContext {
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// This is called before the render call and is a place where
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// any animations/etc can be updated
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}
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-(void)onUpdateLayerProperties:(NSDictionary *)layerProperties {
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//NSLog(@"Metal Layer Rendering Properties: %@", layerProperties);
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- (void)onUpdateLayerProperties:(NSDictionary *)layerProperties {
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// NSLog(@"Metal Layer Rendering Properties: %@", layerProperties);
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// These two properties are in the "properties" section of the style sheet and
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// are passed in at layer creation. These are not expression based properties
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NSNumber *offsetX = [layerProperties objectForKey:@"offset-x"];
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if (offsetX) {
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_offsetX = [[layerProperties objectForKey:@"offset-x"] floatValue];
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// These two properties are in the "properties" section of the style sheet and
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// are passed in at layer creation. These are not expression based properties
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NSNumber *offsetX = [layerProperties objectForKey:@"offset-x"];
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if (offsetX) {
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_offsetX = [[layerProperties objectForKey:@"offset-x"] floatValue];
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}
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NSNumber *offsetY = [layerProperties objectForKey:@"offset-y"];
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if (offsetY) {
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_offsetY = [[layerProperties objectForKey:@"offset-y"] floatValue];
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}
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// These are the paint properties and can be updated each frame or zoom level
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// change/etc depending on if they are static or expression based/etc.
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NSNumber *scale = [layerProperties objectForKey:@"scale"];
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if (scale) {
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if ([scale isKindOfClass:[NSNumber class]]) {
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_scale = [scale floatValue];
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}
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}
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NSNumber *offsetY = [layerProperties objectForKey:@"offset-y"];
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if (offsetY) {
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_offsetY = [[layerProperties objectForKey:@"offset-y"] floatValue];
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NSString *fillColor = [layerProperties objectForKey:@"fill-color"];
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if (fillColor) {
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// NSLog(@"Fill Color: %@", fillColor);
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fillColor = [fillColor stringByReplacingOccurrencesOfString:@"rgba(" withString:@""];
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fillColor = [fillColor stringByReplacingOccurrencesOfString:@")" withString:@""];
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NSArray *components = [fillColor componentsSeparatedByString:@","];
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if ([components count] == 4) {
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// Convert to float since they come in as 0..255
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_r = [[components objectAtIndex:0] floatValue] / 255.0;
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_g = [[components objectAtIndex:1] floatValue] / 255.0;
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_b = [[components objectAtIndex:2] floatValue] / 255.0;
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_a = [[components objectAtIndex:3] floatValue];
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}
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// These are the paint properties and can be updated each frame or zoom level
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// change/etc depending on if they are static or expression based/etc.
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NSNumber *scale = [layerProperties objectForKey:@"scale"];
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if (scale) {
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if ([scale isKindOfClass:[NSNumber class]]) {
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_scale = [scale floatValue];
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}
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}
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NSString *fillColor = [layerProperties objectForKey:@"fill-color"];
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if (fillColor) {
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//NSLog(@"Fill Color: %@", fillColor);
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fillColor = [fillColor stringByReplacingOccurrencesOfString:@"rgba(" withString:@""];
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fillColor = [fillColor stringByReplacingOccurrencesOfString:@")" withString:@""];
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NSArray *components = [fillColor componentsSeparatedByString:@","];
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if ([components count] == 4) {
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// Convert to float since they come in as 0..255
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_r = [[components objectAtIndex:0] floatValue] / 255.0;
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_g = [[components objectAtIndex:1] floatValue] / 255.0;
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_b = [[components objectAtIndex:2] floatValue] / 255.0;
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_a = [[components objectAtIndex:3] floatValue];
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}
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}
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}
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}
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@end
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