Implement support for using GL ES 3.0 with command buffer

Adds a new 'api': --config gpu(api=commandbuffer3) for dm/nanobench.

BUG=skia:4943
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684413003

Review URL: https://codereview.chromium.org/1684413003

5 files changed, 21 insertions, 9 deletions

diff --git a/include/gpu/gl/command_buffer/SkCommandBufferGLContext.h b/include/gpu/gl/command_buffer/SkCommandBufferGLContext.h
index 47f3fd967a..cf16c2299c 100644
--- a/include/gpu/gl/command_buffer/SkCommandBufferGLContext.h
+++ b/include/gpu/gl/command_buffer/SkCommandBufferGLContext.h
@@ -16,8 +16,16 @@ class SkCommandBufferGLContext : public SkGLContext {
 public:
     ~SkCommandBufferGLContext() override;
 
-    static SkCommandBufferGLContext* Create() {
-        SkCommandBufferGLContext* ctx = new SkCommandBufferGLContext;
+    static SkCommandBufferGLContext* CreateES2() {
+        SkCommandBufferGLContext* ctx = new SkCommandBufferGLContext(kGLES2_ContextVersion);
+        if (!ctx->isValid()) {
+            delete ctx;
+            return nullptr;
+        }
+        return ctx;
+    }
+    static SkCommandBufferGLContext* CreateES3() {
+        SkCommandBufferGLContext* ctx = new SkCommandBufferGLContext(kGLES3_ContextVersion);
         if (!ctx->isValid()) {
             delete ctx;
             return nullptr;
@@ -42,10 +50,14 @@ public:
     int getSampleCount();
 
 private:
-    SkCommandBufferGLContext();
+    enum ContextVersion {
+        kGLES2_ContextVersion,
+        kGLES3_ContextVersion
+    };
+    SkCommandBufferGLContext(ContextVersion minContextVersion);
     SkCommandBufferGLContext(void* nativeWindow, int msaaSampleCount);
-    void initializeGLContext(void* nativeWindow, const int* configAttribs,
-                             const int* surfaceAttribs);
+    void initializeGLContext(ContextVersion minContextVersion, void* nativeWindow,
+                             const int* configAttribs, const int* surfaceAttribs);
     void destroyGLContext();
 
     void onPlatformMakeCurrent() const override;
diff --git a/include/views/SkOSWindow_Mac.h b/include/views/SkOSWindow_Mac.h
index 6ce898321f..66f0cdfde7 100644
--- a/include/views/SkOSWindow_Mac.h
+++ b/include/views/SkOSWindow_Mac.h
@@ -28,7 +28,7 @@ public:
         kANGLE_BackEndType,
 #endif // SK_ANGLE
 #if SK_COMMAND_BUFFER
-        kCommandBuffer_BackEndType,
+        kCommandBufferES2_BackEndType,
 #endif // SK_COMMAND_BUFFER
     };
 
diff --git a/include/views/SkOSWindow_SDL.h b/include/views/SkOSWindow_SDL.h
index e08108add4..65ef07eea0 100644
--- a/include/views/SkOSWindow_SDL.h
+++ b/include/views/SkOSWindow_SDL.h
@@ -24,7 +24,7 @@ public:
         kANGLE_BackEndType,
 #endif // SK_ANGLE
 #if SK_COMMAND_BUFFER
-        kCommandBuffer_BackEndType,
+        kCommandBufferES2_BackEndType,
 #endif // SK_COMMAND_BUFFER
     };
 
diff --git a/include/views/SkOSWindow_Unix.h b/include/views/SkOSWindow_Unix.h
index ecd0a14521..3395ab9d09 100644
--- a/include/views/SkOSWindow_Unix.h
+++ b/include/views/SkOSWindow_Unix.h
@@ -40,7 +40,7 @@ public:
         kANGLE_BackEndType,
 #endif // SK_ANGLE
 #if SK_COMMAND_BUFFER
-        kCommandBuffer_BackEndType,
+        kCommandBufferES2_BackEndType,
 #endif // SK_COMMAND_BUFFER
     };
 
diff --git a/include/views/SkOSWindow_Win.h b/include/views/SkOSWindow_Win.h
index c1a68c621e..9e771c2c6a 100644
--- a/include/views/SkOSWindow_Win.h
+++ b/include/views/SkOSWindow_Win.h
@@ -42,7 +42,7 @@ public:
         kANGLE_BackEndType,
 #endif // SK_ANGLE
 #if SK_COMMAND_BUFFER
-        kCommandBuffer_BackEndType,
+        kCommandBufferES2_BackEndType,
 #endif // SK_COMMAND_BUFFER
 #endif // SK_SUPPORT_GPU
     };