Send WebView the current transform and whether we're drawing a layer.

Bug #3275491

These can be used by WebView to correctly apply alpha and geometric
transforms.

Change-Id: I2ecd4376d68df886dead3c9240317de33f56828f

1 files changed, 50 insertions, 0 deletions

diff --git a/include/private/hwui/DrawGlInfo.h b/include/private/hwui/DrawGlInfo.h
new file mode 100644
index 0000000..1e9912b
--- /dev/null
+++ b/include/private/hwui/DrawGlInfo.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HWUI_DRAW_GL_INFO_H
+#define ANDROID_HWUI_DRAW_GL_INFO_H
+
+namespace android {
+namespace uirenderer {
+
+/**
+ * Structure used by OpenGLRenderer::callDrawGLFunction() to pass and
+ * receive data from OpenGL functors.
+ */
+struct DrawGlInfo {
+    // Input: current clip rect
+    int clipLeft;
+    int clipTop;
+    int clipRight;
+    int clipBottom;
+
+    // Input: is the render target an FBO
+    bool isLayer;
+
+    // Input: current transform matrix, in OpenGL format
+    float transform[16];
+
+    // Output: dirty region to redraw
+    float dirtyLeft;
+    float dirtyTop;
+    float dirtyRight;
+    float dirtyBottom;
+}; // struct DrawGlInfo
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_DRAW_GL_INFO_H