35 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C++
		
	
	
	
| // Copyright 2019 Google LLC.
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| // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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| #include "tools/fiddle/examples.h"
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| // HASH=d3aec071998f871809f515e58abb1b0e
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| REG_FIDDLE(Surface_MakeFromBackendTexture, 256, 256, false, 3) {
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| void draw(SkCanvas* canvas) {
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|     SkFont font(nullptr, 32);
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|     SkPaint paint;
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| 
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|     GrRecordingContext* context = canvas->recordingContext();
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|     if (!context) {
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|          canvas->drawString("GPU only!", 20, 40, font, paint);
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|          return;
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|     }
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|     GrDirectContext* direct = context->asDirectContext();
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|     if (!direct) {
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|          canvas->drawString("Direct Context only!", 20, 40, font, paint);
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|          return;
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|     }
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| 
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|     sk_sp<SkSurface> gpuSurface = SkSurface::MakeFromBackendTexture(direct,
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|                                                                     backEndTexture,
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|                                                                     kTopLeft_GrSurfaceOrigin,
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|                                                                     0,
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|                                                                     kRGBA_8888_SkColorType,
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|                                                                     nullptr,
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|                                                                     nullptr,
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|                                                                     nullptr);
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|     auto surfaceCanvas = gpuSurface->getCanvas();
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|     surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
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|     sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
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|     canvas->drawImage(image, 0, 0);
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| }
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| }  // END FIDDLE
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