Add support for background blurs
Bug: 141640413
Fixes: 146384234
Test: adb shell setprop debug.sf.disableBlurs 1
Test: adb shell setprop debug.sf.gaussianBlur 0
Test: adb shell setprop ro.surface_flinger.supports_background_blur 1
Test: ./SurfaceFlinger_test --gtest_filter=Layer*Tests/Layer*Test.SetBackgroundBlur*
Test: ./librenderengine_test --gtest_filter=*BlurBackground*"
Test: atest SurfaceFlinger_test:SurfaceInterceptorTest#InterceptBackgroundBlurRadiusUpdateWorks
Change-Id: I5194c910fe7062f33e70943867012539e6c6626a
diff --git a/libs/renderengine/gl/GLFramebuffer.cpp b/libs/renderengine/gl/GLFramebuffer.cpp
index 5fbb5ba..091eac9 100644
--- a/libs/renderengine/gl/GLFramebuffer.cpp
+++ b/libs/renderengine/gl/GLFramebuffer.cpp
@@ -20,8 +20,8 @@
#include <GLES/gl.h>
#include <GLES/glext.h>
-#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
+#include <GLES3/gl3.h>
#include <gui/DebugEGLImageTracker.h>
#include <nativebase/nativebase.h>
#include <utils/Trace.h>
@@ -32,14 +32,23 @@
namespace gl {
GLFramebuffer::GLFramebuffer(GLESRenderEngine& engine)
+ : GLFramebuffer(engine, false /* multiTarget */) {}
+
+GLFramebuffer::GLFramebuffer(GLESRenderEngine& engine, bool multiTarget)
: mEngine(engine), mEGLDisplay(engine.getEGLDisplay()), mEGLImage(EGL_NO_IMAGE_KHR) {
glGenTextures(1, &mTextureName);
+ if (multiTarget) {
+ glGenTextures(1, &mSecondaryTextureName);
+ }
glGenFramebuffers(1, &mFramebufferName);
}
GLFramebuffer::~GLFramebuffer() {
glDeleteFramebuffers(1, &mFramebufferName);
glDeleteTextures(1, &mTextureName);
+ if (mSecondaryTextureName != -1) {
+ glDeleteTextures(1, &mSecondaryTextureName);
+ }
}
bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
@@ -68,6 +77,55 @@
return true;
}
+void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height) {
+ ATRACE_CALL();
+
+ glBindTexture(GL_TEXTURE_2D, mTextureName);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
+
+ const bool multiTarget = mSecondaryTextureName != -1;
+ if (multiTarget) {
+ glBindTexture(GL_TEXTURE_2D, mSecondaryTextureName);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
+ }
+
+ mBufferHeight = height;
+ mBufferWidth = width;
+ mEngine.checkErrors("Allocating Fbo texture");
+
+ bind();
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextureName, 0);
+ if (multiTarget) {
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D,
+ mSecondaryTextureName, 0);
+ GLenum buffers[] = {GL_COLOR_ATTACHMENT0_EXT, GL_COLOR_ATTACHMENT1_EXT};
+ glDrawBuffers(2, buffers);
+ }
+ mStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+ unbind();
+ glBindTexture(GL_TEXTURE_2D, 0);
+
+ if (mStatus != GL_FRAMEBUFFER_COMPLETE) {
+ ALOGE("Frame buffer is not complete. Error %d", mStatus);
+ }
+}
+
+void GLFramebuffer::bind() const {
+ glBindFramebuffer(GL_FRAMEBUFFER, mFramebufferName);
+}
+
+void GLFramebuffer::unbind() const {
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+}
+
} // namespace gl
} // namespace renderengine
} // namespace android