Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709)

Bug: 166295507
Merged-In: I3d92a6de21a938f6b352ec26dc23420c0fe02b27
Change-Id: Ifdb80563ef042738778ebb8a7581a97c4e3d96e2

1 files changed, 268 insertions, 0 deletions

diff --git a/libs/hwui/jni/YuvToJpegEncoder.cpp b/libs/hwui/jni/YuvToJpegEncoder.cpp
new file mode 100644
index 000000000000..689cf0bea741
--- /dev/null
+++ b/libs/hwui/jni/YuvToJpegEncoder.cpp
@@ -0,0 +1,268 @@
+#include "CreateJavaOutputStreamAdaptor.h"
+#include "SkJPEGWriteUtility.h"
+#include "YuvToJpegEncoder.h"
+#include <ui/PixelFormat.h>
+#include <hardware/hardware.h>
+
+#include "graphics_jni_helpers.h"
+
+YuvToJpegEncoder* YuvToJpegEncoder::create(int format, int* strides) {
+    // Only ImageFormat.NV21 and ImageFormat.YUY2 are supported
+    // for now.
+    if (format == HAL_PIXEL_FORMAT_YCrCb_420_SP) {
+        return new Yuv420SpToJpegEncoder(strides);
+    } else if (format == HAL_PIXEL_FORMAT_YCbCr_422_I) {
+        return new Yuv422IToJpegEncoder(strides);
+    } else {
+      return NULL;
+    }
+}
+
+YuvToJpegEncoder::YuvToJpegEncoder(int* strides) : fStrides(strides) {
+}
+
+struct ErrorMgr {
+    struct jpeg_error_mgr pub;
+    jmp_buf jmp;
+};
+
+void error_exit(j_common_ptr cinfo) {
+    ErrorMgr* err = (ErrorMgr*) cinfo->err;
+    (*cinfo->err->output_message) (cinfo);
+    longjmp(err->jmp, 1);
+}
+
+bool YuvToJpegEncoder::encode(SkWStream* stream, void* inYuv, int width,
+        int height, int* offsets, int jpegQuality) {
+    jpeg_compress_struct    cinfo;
+    ErrorMgr                err;
+    skjpeg_destination_mgr  sk_wstream(stream);
+
+    cinfo.err = jpeg_std_error(&err.pub);
+    err.pub.error_exit = error_exit;
+
+    if (setjmp(err.jmp)) {
+        jpeg_destroy_compress(&cinfo);
+        return false;
+    }
+    jpeg_create_compress(&cinfo);
+
+    cinfo.dest = &sk_wstream;
+
+    setJpegCompressStruct(&cinfo, width, height, jpegQuality);
+
+    jpeg_start_compress(&cinfo, TRUE);
+
+    compress(&cinfo, (uint8_t*) inYuv, offsets);
+
+    jpeg_finish_compress(&cinfo);
+
+    jpeg_destroy_compress(&cinfo);
+
+    return true;
+}
+
+void YuvToJpegEncoder::setJpegCompressStruct(jpeg_compress_struct* cinfo,
+        int width, int height, int quality) {
+    cinfo->image_width = width;
+    cinfo->image_height = height;
+    cinfo->input_components = 3;
+    cinfo->in_color_space = JCS_YCbCr;
+    jpeg_set_defaults(cinfo);
+
+    jpeg_set_quality(cinfo, quality, TRUE);
+    jpeg_set_colorspace(cinfo, JCS_YCbCr);
+    cinfo->raw_data_in = TRUE;
+    cinfo->dct_method = JDCT_IFAST;
+    configSamplingFactors(cinfo);
+}
+
+///////////////////////////////////////////////////////////////////
+Yuv420SpToJpegEncoder::Yuv420SpToJpegEncoder(int* strides) :
+        YuvToJpegEncoder(strides) {
+    fNumPlanes = 2;
+}
+
+void Yuv420SpToJpegEncoder::compress(jpeg_compress_struct* cinfo,
+        uint8_t* yuv, int* offsets) {
+    SkDebugf("onFlyCompress");
+    JSAMPROW y[16];
+    JSAMPROW cb[8];
+    JSAMPROW cr[8];
+    JSAMPARRAY planes[3];
+    planes[0] = y;
+    planes[1] = cb;
+    planes[2] = cr;
+
+    int width = cinfo->image_width;
+    int height = cinfo->image_height;
+    uint8_t* yPlanar = yuv + offsets[0];
+    uint8_t* vuPlanar = yuv + offsets[1]; //width * height;
+    uint8_t* uRows = new uint8_t [8 * (width >> 1)];
+    uint8_t* vRows = new uint8_t [8 * (width >> 1)];
+
+
+    // process 16 lines of Y and 8 lines of U/V each time.
+    while (cinfo->next_scanline < cinfo->image_height) {
+        //deitnerleave u and v
+        deinterleave(vuPlanar, uRows, vRows, cinfo->next_scanline, width, height);
+
+        // Jpeg library ignores the rows whose indices are greater than height.
+        for (int i = 0; i < 16; i++) {
+            // y row
+            y[i] = yPlanar + (cinfo->next_scanline + i) * fStrides[0];
+
+            // construct u row and v row
+            if ((i & 1) == 0) {
+                // height and width are both halved because of downsampling
+                int offset = (i >> 1) * (width >> 1);
+                cb[i/2] = uRows + offset;
+                cr[i/2] = vRows + offset;
+            }
+          }
+        jpeg_write_raw_data(cinfo, planes, 16);
+    }
+    delete [] uRows;
+    delete [] vRows;
+
+}
+
+void Yuv420SpToJpegEncoder::deinterleave(uint8_t* vuPlanar, uint8_t* uRows,
+        uint8_t* vRows, int rowIndex, int width, int height) {
+    int numRows = (height - rowIndex) / 2;
+    if (numRows > 8) numRows = 8;
+    for (int row = 0; row < numRows; ++row) {
+        int offset = ((rowIndex >> 1) + row) * fStrides[1];
+        uint8_t* vu = vuPlanar + offset;
+        for (int i = 0; i < (width >> 1); ++i) {
+            int index = row * (width >> 1) + i;
+            uRows[index] = vu[1];
+            vRows[index] = vu[0];
+            vu += 2;
+        }
+    }
+}
+
+void Yuv420SpToJpegEncoder::configSamplingFactors(jpeg_compress_struct* cinfo) {
+    // cb and cr are horizontally downsampled and vertically downsampled as well.
+    cinfo->comp_info[0].h_samp_factor = 2;
+    cinfo->comp_info[0].v_samp_factor = 2;
+    cinfo->comp_info[1].h_samp_factor = 1;
+    cinfo->comp_info[1].v_samp_factor = 1;
+    cinfo->comp_info[2].h_samp_factor = 1;
+    cinfo->comp_info[2].v_samp_factor = 1;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+Yuv422IToJpegEncoder::Yuv422IToJpegEncoder(int* strides) :
+        YuvToJpegEncoder(strides) {
+    fNumPlanes = 1;
+}
+
+void Yuv422IToJpegEncoder::compress(jpeg_compress_struct* cinfo,
+        uint8_t* yuv, int* offsets) {
+    SkDebugf("onFlyCompress_422");
+    JSAMPROW y[16];
+    JSAMPROW cb[16];
+    JSAMPROW cr[16];
+    JSAMPARRAY planes[3];
+    planes[0] = y;
+    planes[1] = cb;
+    planes[2] = cr;
+
+    int width = cinfo->image_width;
+    int height = cinfo->image_height;
+    uint8_t* yRows = new uint8_t [16 * width];
+    uint8_t* uRows = new uint8_t [16 * (width >> 1)];
+    uint8_t* vRows = new uint8_t [16 * (width >> 1)];
+
+    uint8_t* yuvOffset = yuv + offsets[0];
+
+    // process 16 lines of Y and 16 lines of U/V each time.
+    while (cinfo->next_scanline < cinfo->image_height) {
+        deinterleave(yuvOffset, yRows, uRows, vRows, cinfo->next_scanline, width, height);
+
+        // Jpeg library ignores the rows whose indices are greater than height.
+        for (int i = 0; i < 16; i++) {
+            // y row
+            y[i] = yRows + i * width;
+
+            // construct u row and v row
+            // width is halved because of downsampling
+            int offset = i * (width >> 1);
+            cb[i] = uRows + offset;
+            cr[i] = vRows + offset;
+        }
+
+        jpeg_write_raw_data(cinfo, planes, 16);
+    }
+    delete [] yRows;
+    delete [] uRows;
+    delete [] vRows;
+}
+
+
+void Yuv422IToJpegEncoder::deinterleave(uint8_t* yuv, uint8_t* yRows, uint8_t* uRows,
+        uint8_t* vRows, int rowIndex, int width, int height) {
+    int numRows = height - rowIndex;
+    if (numRows > 16) numRows = 16;
+    for (int row = 0; row < numRows; ++row) {
+        uint8_t* yuvSeg = yuv + (rowIndex + row) * fStrides[0];
+        for (int i = 0; i < (width >> 1); ++i) {
+            int indexY = row * width + (i << 1);
+            int indexU = row * (width >> 1) + i;
+            yRows[indexY] = yuvSeg[0];
+            yRows[indexY + 1] = yuvSeg[2];
+            uRows[indexU] = yuvSeg[1];
+            vRows[indexU] = yuvSeg[3];
+            yuvSeg += 4;
+        }
+    }
+}
+
+void Yuv422IToJpegEncoder::configSamplingFactors(jpeg_compress_struct* cinfo) {
+    // cb and cr are horizontally downsampled and vertically downsampled as well.
+    cinfo->comp_info[0].h_samp_factor = 2;
+    cinfo->comp_info[0].v_samp_factor = 2;
+    cinfo->comp_info[1].h_samp_factor = 1;
+    cinfo->comp_info[1].v_samp_factor = 2;
+    cinfo->comp_info[2].h_samp_factor = 1;
+    cinfo->comp_info[2].v_samp_factor = 2;
+}
+///////////////////////////////////////////////////////////////////////////////
+
+static jboolean YuvImage_compressToJpeg(JNIEnv* env, jobject, jbyteArray inYuv,
+        jint format, jint width, jint height, jintArray offsets,
+        jintArray strides, jint jpegQuality, jobject jstream,
+        jbyteArray jstorage) {
+    jbyte* yuv = env->GetByteArrayElements(inYuv, NULL);
+    SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
+
+    jint* imgOffsets = env->GetIntArrayElements(offsets, NULL);
+    jint* imgStrides = env->GetIntArrayElements(strides, NULL);
+    YuvToJpegEncoder* encoder = YuvToJpegEncoder::create(format, imgStrides);
+    jboolean result = JNI_FALSE;
+    if (encoder != NULL) {
+        encoder->encode(strm, yuv, width, height, imgOffsets, jpegQuality);
+        delete encoder;
+        result = JNI_TRUE;
+    }
+
+    env->ReleaseByteArrayElements(inYuv, yuv, 0);
+    env->ReleaseIntArrayElements(offsets, imgOffsets, 0);
+    env->ReleaseIntArrayElements(strides, imgStrides, 0);
+    delete strm;
+    return result;
+}
+///////////////////////////////////////////////////////////////////////////////
+
+static const JNINativeMethod gYuvImageMethods[] = {
+    {   "nativeCompressToJpeg",  "([BIII[I[IILjava/io/OutputStream;[B)Z",
+        (void*)YuvImage_compressToJpeg }
+};
+
+int register_android_graphics_YuvImage(JNIEnv* env)
+{
+    return android::RegisterMethodsOrDie(env, "android/graphics/YuvImage", gYuvImageMethods,
+                                         NELEM(gYuvImageMethods));
+}