diff options
Diffstat (limited to 'libs/hwui/jni/Graphics.cpp')
| -rw-r--r-- | libs/hwui/jni/Graphics.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libs/hwui/jni/Graphics.cpp b/libs/hwui/jni/Graphics.cpp index ecbb55ec878d..77f46beb2100 100644 --- a/libs/hwui/jni/Graphics.cpp +++ b/libs/hwui/jni/Graphics.cpp @@ -9,6 +9,7 @@ #include "GraphicsJNI.h" #include "SkCanvas.h" +#include "SkFontMetrics.h" #include "SkMath.h" #include "SkRegion.h" #include <cutils/ashmem.h> @@ -228,6 +229,20 @@ static jfieldID gColorSpace_Named_LinearExtendedSRGBFieldID; static jclass gTransferParameters_class; static jmethodID gTransferParameters_constructorMethodID; +static jclass gFontMetrics_class; +static jfieldID gFontMetrics_top; +static jfieldID gFontMetrics_ascent; +static jfieldID gFontMetrics_descent; +static jfieldID gFontMetrics_bottom; +static jfieldID gFontMetrics_leading; + +static jclass gFontMetricsInt_class; +static jfieldID gFontMetricsInt_top; +static jfieldID gFontMetricsInt_ascent; +static jfieldID gFontMetricsInt_descent; +static jfieldID gFontMetricsInt_bottom; +static jfieldID gFontMetricsInt_leading; + /////////////////////////////////////////////////////////////////////////////// void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B) @@ -468,6 +483,32 @@ SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) return r; } +void GraphicsJNI::set_metrics(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) { + if (metrics == nullptr) return; + SkASSERT(env->IsInstanceOf(metrics, gFontMetrics_class)); + env->SetFloatField(metrics, gFontMetrics_top, SkScalarToFloat(skmetrics.fTop)); + env->SetFloatField(metrics, gFontMetrics_ascent, SkScalarToFloat(skmetrics.fAscent)); + env->SetFloatField(metrics, gFontMetrics_descent, SkScalarToFloat(skmetrics.fDescent)); + env->SetFloatField(metrics, gFontMetrics_bottom, SkScalarToFloat(skmetrics.fBottom)); + env->SetFloatField(metrics, gFontMetrics_leading, SkScalarToFloat(skmetrics.fLeading)); +} + +int GraphicsJNI::set_metrics_int(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) { + int ascent = SkScalarRoundToInt(skmetrics.fAscent); + int descent = SkScalarRoundToInt(skmetrics.fDescent); + int leading = SkScalarRoundToInt(skmetrics.fLeading); + + if (metrics) { + SkASSERT(env->IsInstanceOf(metrics, gFontMetricsInt_class)); + env->SetIntField(metrics, gFontMetricsInt_top, SkScalarFloorToInt(skmetrics.fTop)); + env->SetIntField(metrics, gFontMetricsInt_ascent, ascent); + env->SetIntField(metrics, gFontMetricsInt_descent, descent); + env->SetIntField(metrics, gFontMetricsInt_bottom, SkScalarCeilToInt(skmetrics.fBottom)); + env->SetIntField(metrics, gFontMetricsInt_leading, leading); + } + return descent - ascent + leading; +} + /////////////////////////////////////////////////////////////////////////////////////////// jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, skia::BitmapRegionDecoder* bitmap) @@ -764,5 +805,23 @@ int register_android_graphics_Graphics(JNIEnv* env) gTransferParameters_constructorMethodID = GetMethodIDOrDie(env, gTransferParameters_class, "<init>", "(DDDDDDD)V"); + gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics"); + gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class); + + gFontMetrics_top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F"); + gFontMetrics_ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F"); + gFontMetrics_descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F"); + gFontMetrics_bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F"); + gFontMetrics_leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F"); + + gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt"); + gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class); + + gFontMetricsInt_top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I"); + gFontMetricsInt_ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I"); + gFontMetricsInt_descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I"); + gFontMetricsInt_bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I"); + gFontMetricsInt_leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I"); + return 0; } |