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Mac: Implement blocky and smooth rendering modes in Metal renderer

This commit is contained in:
Michael Buckley 2019-12-26 11:41:47 -08:00
parent b12ca3e9e3
commit 303642e122
2 changed files with 31 additions and 20 deletions
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29
macosx/mac-render.mm
View File

@ -147,27 +147,26 @@ static void S9xInitMetal (void)
glScreenH = glScreenBounds.size.height;
metalLayer = (CAMetalLayer *)s9xView.layer;
//metalLayer.presentsWithTransaction = YES;
metalDevice = s9xView.device;
metalCommandQueue = [metalDevice newCommandQueue];
NSError *error = nil;
id<MTLLibrary> defaultLibrary = [metalDevice newDefaultLibraryWithBundle:[NSBundle bundleForClass:[S9xEngine class]] error:&error];
MTLRenderPipelineDescriptor *descriptor = [MTLRenderPipelineDescriptor new];
descriptor.label = @"Snes9x Pipeline";
descriptor.vertexFunction = [defaultLibrary newFunctionWithName:@"vertexShader"];
descriptor.fragmentFunction = [defaultLibrary newFunctionWithName:@"samplingShader"];
descriptor.colorAttachments[0].pixelFormat = s9xView.colorPixelFormat;
MTLRenderPipelineDescriptor *pipelineDescriptor = [MTLRenderPipelineDescriptor new];
pipelineDescriptor.label = @"Snes9x Pipeline";
pipelineDescriptor.vertexFunction = [defaultLibrary newFunctionWithName:@"vertexShader"];
pipelineDescriptor.colorAttachments[0].pixelFormat = s9xView.colorPixelFormat;
pipelineDescriptor.fragmentFunction = [defaultLibrary newFunctionWithName:@"fragmentShader"];
metalPipelineState = [metalDevice newRenderPipelineStateWithDescriptor:descriptor error:&error];
metalPipelineState = [metalDevice newRenderPipelineStateWithDescriptor:pipelineDescriptor error:&error];
if (metalPipelineState == nil)
{
NSLog(@"%@",error);
}
metalCommandQueue = [metalDevice newCommandQueue];
}
static void S9xDeinitMetal (void)
@ -314,12 +313,12 @@ static void S9xPutImageMetal (int width, int height, uint16 *buffer16)
CGSize layerSize = metalLayer.bounds.size;
MTLTextureDescriptor *descriptor = [MTLTextureDescriptor new];
descriptor.pixelFormat = MTLPixelFormatRGBA8Unorm;
descriptor.width = width;
descriptor.height = height;
MTLTextureDescriptor *textureDescriptor = [MTLTextureDescriptor new];
textureDescriptor.pixelFormat = MTLPixelFormatRGBA8Unorm;
textureDescriptor.width = width;
textureDescriptor.height = height;
metalTexture = [metalDevice newTextureWithDescriptor:descriptor];
metalTexture = [metalDevice newTextureWithDescriptor:textureDescriptor];
[metalTexture replaceRegion:MTLRegionMake2D(0, 0, width, height) mipmapLevel:0 withBytes:buffer bytesPerRow:width * 4];
free(buffer);
@ -340,6 +339,7 @@ static void S9xPutImageMetal (int width, int height, uint16 *buffer16)
};
id<MTLBuffer> vertexBuffer = [metalDevice newBufferWithBytes:verticies length:sizeof(verticies) options:MTLResourceStorageModeShared];
id<MTLBuffer> fragmentBuffer = [metalDevice newBufferWithBytes:&videoMode length:sizeof(videoMode) options:MTLResourceStorageModeShared];
id<MTLCommandBuffer> commandBuffer = [metalCommandQueue commandBuffer];
commandBuffer.label = @"Snes9x command buffer";
@ -374,6 +374,7 @@ static void S9xPutImageMetal (int width, int height, uint16 *buffer16)
atIndex:1];
[renderEncoder setFragmentTexture:metalTexture atIndex:0];
[renderEncoder setFragmentBuffer:fragmentBuffer offset:0 atIndex:1];
[renderEncoder drawPrimitives:MTLPrimitiveTypeTriangle vertexStart:0 vertexCount:6];

14
macosx/shaders.metal
View File

@ -43,10 +43,20 @@ vertexShader(uint vertexID [[ vertex_id ]], constant MetalVertex *vertexArray [[
}
fragment float4
samplingShader(RasterizerData in [[stage_in]], texture2d<half> colorTexture [[ texture(0) ]])
fragmentShader(RasterizerData in [[stage_in]], texture2d<half> colorTexture [[ texture(0) ]], constant int *videoModePointer [[ buffer(1) ]])
{
int videoMode = int(*videoModePointer);
if ( videoMode == 0)
{
constexpr sampler textureSampler (mag_filter::nearest, min_filter::nearest);
const half4 colorSample = colorTexture.sample(textureSampler, in.textureCoordinate);
return float4(colorSample);
}
else
{
constexpr sampler textureSampler (mag_filter::linear, min_filter::linear);
const half4 colorSample = colorTexture.sample(textureSampler, in.textureCoordinate);
return float4(colorSample);
}
}