xref: /aosp_15_r20/external/skia/example/external_client/src/ganesh_vulkan.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2  * Copyright 2024 Google LLC
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "include/core/SkAlphaType.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkColor.h"
11 #include "include/core/SkColorType.h"
12 #include "include/core/SkImageInfo.h"
13 #include "include/core/SkRRect.h"
14 #include "include/core/SkRefCnt.h"
15 #include "include/core/SkSurface.h"
16 #include "include/gpu/ganesh/GrDirectContext.h"
17 #include "include/gpu/ganesh/SkSurfaceGanesh.h"
18 #include "include/gpu/ganesh/vk/GrVkDirectContext.h"
19 #include "include/gpu/vk/VulkanBackendContext.h"
20 #include "include/gpu/vk/VulkanExtensions.h"
21 
main(int argc,char ** argv)22 int main(int argc, char** argv) {
23     // This will not run (since it's missing all the Vulkan setup code),
24     // but it should compile and link to test the build system.
25     skgpu::VulkanBackendContext backendContext;
26 
27     std::unique_ptr<skgpu::VulkanExtensions> extensions(new skgpu::VulkanExtensions());
28     backendContext.fInstance = VK_NULL_HANDLE;
29     backendContext.fDevice = VK_NULL_HANDLE;
30 
31     // This call will fail if run, due to the context not being set up.
32     sk_sp<GrDirectContext> ctx = GrDirectContexts::MakeVulkan(backendContext);
33     if (!ctx) {
34         // There would need to be vulkan cleanup here.
35         return 1;
36     }
37 
38     SkImageInfo imageInfo =
39             SkImageInfo::Make(200, 400, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
40 
41     sk_sp<SkSurface> surface =
42             SkSurfaces::RenderTarget(ctx.get(), skgpu::Budgeted::kYes, imageInfo);
43     if (!surface) {
44         printf("Could not make surface from Vulkan DirectContext\n");
45         return 1;
46     }
47 
48     SkCanvas* canvas = surface->getCanvas();
49     canvas->clear(SK_ColorYELLOW);
50     SkRRect rrect = SkRRect::MakeRectXY(SkRect::MakeLTRB(10, 20, 50, 70), 10, 10);
51 
52     SkPaint paint;
53     paint.setColor(SK_ColorMAGENTA);
54     paint.setAntiAlias(true);
55 
56     canvas->drawRRect(rrect, paint);
57 
58     ctx->flush();
59 
60     // There would need to be vulkan cleanup here.
61     return 0;
62 }
63