Move clear-as-draw workaround to GrGLGpu and expose via GrContextOptions.

Bug: skia:7154
Change-Id: I23ffc11dab4a377fbd6b7e4e33722b3fa0793d58
Reviewed-on: https://skia-review.googlesource.com/60681
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/include/gpu/GrContextOptions.h b/include/gpu/GrContextOptions.h
index 61dc8b0457..894813b5cc 100644
--- a/include/gpu/GrContextOptions.h
+++ b/include/gpu/GrContextOptions.h
@@ -15,6 +15,17 @@
 class SkExecutor;
 
 struct GrContextOptions {
+    enum class Enable {
+        /** Forces an option to be disabled. */
+        kNo,
+        /** Forces an option to be enabled. */
+        kYes,
+        /**
+         * Uses Skia's default behavior, which may use runtime properties (e.g. driver version).
+         */
+        kDefault
+    };
+
     GrContextOptions() {}
 
     // Suppress prints for the GrContext.
@@ -88,6 +99,12 @@ struct GrContextOptions {
      */
     bool fAvoidStencilBuffers = false;
 
+    /**
+     * Enables driver workaround to use draws instead of glClear. This only applies to
+     * kOpenGL_GrBackend.
+     */
+    Enable fUseDrawInsteadOfGLClear = Enable::kDefault;
+
 #if GR_TEST_UTILS
     /**
      * Private options that are only meant for testing within Skia's tools.