SF: add buffer checks to Render Engine

Make sure that both input and output buffers are GPU accessible
before Render Engine tries to do something with the buffers.

Test: Boot, launch an app, take a screenshot
Bug: 158790260
Change-Id: I905a670f6cc2d419b49fe79694df6e71d60a2a92

1 files changed, 10 insertions, 0 deletions

diff --git a/libs/renderengine/RenderEngine.cpp b/libs/renderengine/RenderEngine.cpp
index 79839c1f91..0c5a851c41 100644
--- a/libs/renderengine/RenderEngine.cpp
+++ b/libs/renderengine/RenderEngine.cpp
@@ -85,5 +85,15 @@ std::unique_ptr<RenderEngine> RenderEngine::create(const RenderEngineCreationArg
 
 RenderEngine::~RenderEngine() = default;
 
+void RenderEngine::validateInputBufferUsage(const sp<GraphicBuffer>& buffer) {
+    LOG_ALWAYS_FATAL_IF(!(buffer->getUsage() & GraphicBuffer::USAGE_HW_TEXTURE),
+                        "input buffer not gpu readable");
+}
+
+void RenderEngine::validateOutputBufferUsage(const sp<GraphicBuffer>& buffer) {
+    LOG_ALWAYS_FATAL_IF(!(buffer->getUsage() & GraphicBuffer::USAGE_HW_RENDER),
+                        "output buffer not gpu writeable");
+}
+
 } // namespace renderengine
 } // namespace android