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Unified Diff: webrtc/api/android/jni/native_handle_impl.cc

Issue 2547483003: Move /webrtc/api/android files to /webrtc/sdk/android (Closed)
Patch Set: Move to api folder under Android instead of src Created 4 years ago
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Index: webrtc/api/android/jni/native_handle_impl.cc
diff --git a/webrtc/api/android/jni/native_handle_impl.cc b/webrtc/api/android/jni/native_handle_impl.cc
deleted file mode 100644
index 1e98559954affbc51ac171352cdb341e1837031a..0000000000000000000000000000000000000000
--- a/webrtc/api/android/jni/native_handle_impl.cc
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * Copyright 2015 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/api/android/jni/native_handle_impl.h"
-
-#include <memory>
-
-#include "webrtc/api/android/jni/jni_helpers.h"
-#include "webrtc/base/bind.h"
-#include "webrtc/base/checks.h"
-#include "webrtc/base/keep_ref_until_done.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/base/scoped_ref_ptr.h"
-
-using webrtc::NativeHandleBuffer;
-
-namespace webrtc_jni {
-
-Matrix::Matrix(JNIEnv* jni, jfloatArray a) {
- RTC_CHECK_EQ(16, jni->GetArrayLength(a));
- jfloat* ptr = jni->GetFloatArrayElements(a, nullptr);
- for (int i = 0; i < 16; ++i) {
- elem_[i] = ptr[i];
- }
- jni->ReleaseFloatArrayElements(a, ptr, 0);
-}
-
-jfloatArray Matrix::ToJava(JNIEnv* jni) {
- jfloatArray matrix = jni->NewFloatArray(16);
- jni->SetFloatArrayRegion(matrix, 0, 16, elem_);
- return matrix;
-}
-
-void Matrix::Rotate(webrtc::VideoRotation rotation) {
- // Texture coordinates are in the range 0 to 1. The transformation of the last
- // row in each rotation matrix is needed for proper translation, e.g, to
- // mirror x, we don't replace x by -x, but by 1-x.
- switch (rotation) {
- case webrtc::kVideoRotation_0:
- break;
- case webrtc::kVideoRotation_90: {
- const float ROTATE_90[16] =
- { elem_[4], elem_[5], elem_[6], elem_[7],
- -elem_[0], -elem_[1], -elem_[2], -elem_[3],
- elem_[8], elem_[9], elem_[10], elem_[11],
- elem_[0] + elem_[12], elem_[1] + elem_[13],
- elem_[2] + elem_[14], elem_[3] + elem_[15]};
- memcpy(elem_, ROTATE_90, sizeof(elem_));
- } break;
- case webrtc::kVideoRotation_180: {
- const float ROTATE_180[16] =
- { -elem_[0], -elem_[1], -elem_[2], -elem_[3],
- -elem_[4], -elem_[5], -elem_[6], -elem_[7],
- elem_[8], elem_[9], elem_[10], elem_[11],
- elem_[0] + elem_[4] + elem_[12], elem_[1] + elem_[5] + elem_[13],
- elem_[2] + elem_[6] + elem_[14], elem_[3] + elem_[11]+ elem_[15]};
- memcpy(elem_, ROTATE_180, sizeof(elem_));
- } break;
- case webrtc::kVideoRotation_270: {
- const float ROTATE_270[16] =
- { -elem_[4], -elem_[5], -elem_[6], -elem_[7],
- elem_[0], elem_[1], elem_[2], elem_[3],
- elem_[8], elem_[9], elem_[10], elem_[11],
- elem_[4] + elem_[12], elem_[5] + elem_[13],
- elem_[6] + elem_[14], elem_[7] + elem_[15]};
- memcpy(elem_, ROTATE_270, sizeof(elem_));
- } break;
- }
-}
-
-// Calculates result = a * b, in column-major order.
-void Matrix::Multiply(const float a[16], const float b[16], float result[16]) {
- for (int i = 0; i < 4; ++i) {
- for (int j = 0; j < 4; ++j) {
- float sum = 0;
- for (int k = 0; k < 4; ++k) {
- sum += a[k * 4 + j] * b[i * 4 + k];
- }
- result[i * 4 + j] = sum;
- }
- }
-}
-
-// Center crop by keeping xFraction of the width and yFraction of the height,
-// so e.g. cropping from 640x480 to 640x360 would use
-// xFraction=1, yFraction=360/480.
-void Matrix::Crop(float xFraction,
- float yFraction,
- float xOffset,
- float yOffset) {
- const float crop_matrix[16] =
- {xFraction, 0, 0, 0,
- 0, yFraction, 0, 0,
- 0, 0, 1, 0,
- xOffset, yOffset, 0, 1};
- const Matrix old = *this;
- Multiply(crop_matrix, old.elem_, this->elem_);
-}
-
-// Aligning pointer to 64 bytes for improved performance, e.g. use SIMD.
-static const int kBufferAlignment = 64;
-
-NativeHandleImpl::NativeHandleImpl(int id, const Matrix& matrix)
- : oes_texture_id(id), sampling_matrix(matrix) {}
-
-NativeHandleImpl::NativeHandleImpl(JNIEnv* jni,
- jint j_oes_texture_id,
- jfloatArray j_transform_matrix)
- : oes_texture_id(j_oes_texture_id),
- sampling_matrix(jni, j_transform_matrix) {}
-
-AndroidTextureBuffer::AndroidTextureBuffer(
- int width,
- int height,
- const NativeHandleImpl& native_handle,
- jobject surface_texture_helper,
- const rtc::Callback0<void>& no_longer_used)
- : webrtc::NativeHandleBuffer(&native_handle_, width, height),
- native_handle_(native_handle),
- surface_texture_helper_(surface_texture_helper),
- no_longer_used_cb_(no_longer_used) {}
-
-AndroidTextureBuffer::~AndroidTextureBuffer() {
- no_longer_used_cb_();
-}
-
-rtc::scoped_refptr<webrtc::VideoFrameBuffer>
-AndroidTextureBuffer::NativeToI420Buffer() {
- int uv_width = (width()+7) / 8;
- int stride = 8 * uv_width;
- int uv_height = (height()+1)/2;
- size_t size = stride * (height() + uv_height);
- // The data is owned by the frame, and the normal case is that the
- // data is deleted by the frame's destructor callback.
- //
- // TODO(nisse): Use an I420BufferPool. We then need to extend that
- // class, and I420Buffer, to support our memory layout.
- std::unique_ptr<uint8_t, webrtc::AlignedFreeDeleter> yuv_data(
- static_cast<uint8_t*>(webrtc::AlignedMalloc(size, kBufferAlignment)));
- // See YuvConverter.java for the required layout.
- uint8_t* y_data = yuv_data.get();
- uint8_t* u_data = y_data + height() * stride;
- uint8_t* v_data = u_data + stride/2;
-
- rtc::scoped_refptr<webrtc::VideoFrameBuffer> copy =
- new rtc::RefCountedObject<webrtc::WrappedI420Buffer>(
- width(), height(),
- y_data, stride,
- u_data, stride,
- v_data, stride,
- rtc::Bind(&webrtc::AlignedFree, yuv_data.release()));
-
- JNIEnv* jni = AttachCurrentThreadIfNeeded();
- ScopedLocalRefFrame local_ref_frame(jni);
-
- jmethodID transform_mid = GetMethodID(
- jni,
- GetObjectClass(jni, surface_texture_helper_),
- "textureToYUV",
- "(Ljava/nio/ByteBuffer;IIII[F)V");
-
- jobject byte_buffer = jni->NewDirectByteBuffer(y_data, size);
-
- jfloatArray sampling_matrix = native_handle_.sampling_matrix.ToJava(jni);
- jni->CallVoidMethod(surface_texture_helper_,
- transform_mid,
- byte_buffer, width(), height(), stride,
- native_handle_.oes_texture_id, sampling_matrix);
- CHECK_EXCEPTION(jni) << "textureToYUV throwed an exception";
-
- return copy;
-}
-
-rtc::scoped_refptr<AndroidTextureBuffer>
-AndroidTextureBuffer::CropScaleAndRotate(int cropped_width,
- int cropped_height,
- int crop_x,
- int crop_y,
- int dst_width,
- int dst_height,
- webrtc::VideoRotation rotation) {
- if (cropped_width == dst_width && cropped_height == dst_height &&
- width() == dst_width && height() == dst_height &&
- rotation == webrtc::kVideoRotation_0) {
- return this;
- }
- int rotated_width = (rotation % 180 == 0) ? dst_width : dst_height;
- int rotated_height = (rotation % 180 == 0) ? dst_height : dst_width;
-
- // Here we use Bind magic to add a reference count to |this| until the newly
- // created AndroidTextureBuffer is destructed
- rtc::scoped_refptr<AndroidTextureBuffer> buffer(
- new rtc::RefCountedObject<AndroidTextureBuffer>(
- rotated_width, rotated_height, native_handle_,
- surface_texture_helper_, rtc::KeepRefUntilDone(this)));
-
- if (cropped_width != width() || cropped_height != height()) {
- buffer->native_handle_.sampling_matrix.Crop(
- cropped_width / static_cast<float>(width()),
- cropped_height / static_cast<float>(height()),
- crop_x / static_cast<float>(width()),
- crop_y / static_cast<float>(height()));
- }
- buffer->native_handle_.sampling_matrix.Rotate(rotation);
- return buffer;
-}
-
-} // namespace webrtc_jni
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