commit 985741a554e9ced4517ca6b80e973a55d2c21c84
author Stephen White <senorblanco@chromium.org> Thu Jul 18 11:43:45 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Thu Jul 18 18:09:12 2019 +0000
tree a3ba2fd63edbc7dca6647d38f04c98301bd8b062
parent bd865e27035b7551f54256e51ab4e91289a0c184

First draft of Dawn backend: clears are working.

First draft of (mostly stubbed-out) GrDawnGpu.
Skeletons of GrDawnCaps, GrDawnGpuCommandBuffer, GrDawnRenderTarget.
First draft of DawnTestContext.
First draft of psuedo-fences for Dawn, implemented with MapReadAsync.

Change-Id: I443f3370522639e82f2fa0eebe6b206c372f13a4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228137
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Brian Salomon <bsalomon@google.com>

src/gpu/GrLegacyDirectContext.cpp

diff --git a/src/gpu/GrLegacyDirectContext.cpp b/src/gpu/GrLegacyDirectContext.cpp
index 4c3f756..b6bfd12 100644
--- a/src/gpu/GrLegacyDirectContext.cpp
+++ b/src/gpu/GrLegacyDirectContext.cpp
@@ -23,6 +23,9 @@
 #ifdef SK_VULKAN
 #include "src/gpu/vk/GrVkGpu.h"
 #endif
+#ifdef SK_DAWN
+#include "dawn/GrDawnGpu.h"
+#endif
 
 #ifdef SK_DISABLE_REDUCE_OPLIST_SPLITTING
 static const bool kDefaultReduceOpListSplitting = false;
@@ -218,3 +221,23 @@
 }
 #endif
 
+#ifdef SK_DAWN
+sk_sp<GrContext> GrContext::MakeDawn(const dawn::Device& device) {
+    GrContextOptions defaultOptions;
+    return MakeDawn(device, defaultOptions);
+}
+
+sk_sp<GrContext> GrContext::MakeDawn(const dawn::Device& device, const GrContextOptions& options) {
+    sk_sp<GrContext> context(new GrLegacyDirectContext(GrBackendApi::kDawn, options));
+
+    context->fGpu = GrDawnGpu::Make(device, options, context.get());
+    if (!context->fGpu) {
+        return nullptr;
+    }
+
+    if (!context->init(context->fGpu->refCaps(), nullptr)) {
+        return nullptr;
+    }
+    return context;
+}
+#endif