Index: webrtc/sdk/objc/Framework/Classes/RTCNativeNV12Shader.mm |
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCNativeNV12Shader.mm b/webrtc/sdk/objc/Framework/Classes/RTCNativeNV12Shader.mm |
index cc979434e9fcee83e87430f3248811a54d755255..de3927bef256a9ce756e3decfdda5ddf9abce74c 100644 |
--- a/webrtc/sdk/objc/Framework/Classes/RTCNativeNV12Shader.mm |
+++ b/webrtc/sdk/objc/Framework/Classes/RTCNativeNV12Shader.mm |
@@ -20,6 +20,7 @@ |
#import "WebRTC/RTCVideoFrame.h" |
#include "webrtc/base/checks.h" |
+#include "webrtc/base/optional.h" |
static const char kNV12FragmentShaderSource[] = |
SHADER_VERSION |
@@ -46,6 +47,9 @@ static const char kNV12FragmentShaderSource[] = |
GLint _ySampler; |
GLint _uvSampler; |
CVOpenGLESTextureCacheRef _textureCache; |
+ // Store current rotation and only upload new vertex data when rotation |
+ // changes. |
+ rtc::Optional<int> _current_rotation; |
tkchin_webrtc
2016/08/08 22:58:45
ditto
magjed_webrtc
2016/08/09 13:54:27
Done.
|
} |
- (instancetype)initWithContext:(GlContextType *)context { |
@@ -149,6 +153,10 @@ static const char kNV12FragmentShaderSource[] = |
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer); |
+ if (!_current_rotation || frame.rotation != *_current_rotation) { |
+ _current_rotation = rtc::Optional<int>(frame.rotation); |
+ RTCSetVertexData(frame.rotation); |
+ } |
glDrawArrays(GL_TRIANGLE_FAN, 0, 4); |
CFRelease(chromaTexture); |