| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "Surface" |
| |
| #include <stdio.h> |
| |
| #include "android_util_Binder.h" |
| #include "android/graphics/GraphicsJNI.h" |
| |
| #include <binder/IMemory.h> |
| #include <surfaceflinger/SurfaceComposerClient.h> |
| #include <surfaceflinger/Surface.h> |
| #include <ui/Region.h> |
| #include <ui/Rect.h> |
| |
| #include <EGL/egl.h> |
| |
| #include <SkCanvas.h> |
| #include <SkBitmap.h> |
| #include <SkRegion.h> |
| #include <SkPixelRef.h> |
| |
| #include "jni.h" |
| #include "JNIHelp.h" |
| #include <android_runtime/AndroidRuntime.h> |
| #include <android_runtime/android_view_Surface.h> |
| #include <utils/misc.h> |
| |
| |
| // ---------------------------------------------------------------------------- |
| |
| namespace android { |
| |
| enum { |
| // should match Parcelable.java |
| PARCELABLE_WRITE_RETURN_VALUE = 0x0001 |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| static const char* const OutOfResourcesException = |
| "android/view/Surface$OutOfResourcesException"; |
| |
| struct sso_t { |
| jfieldID client; |
| }; |
| static sso_t sso; |
| |
| struct so_t { |
| jfieldID surfaceControl; |
| jfieldID surfaceGenerationId; |
| jfieldID surface; |
| jfieldID saveCount; |
| jfieldID canvas; |
| }; |
| static so_t so; |
| |
| struct ro_t { |
| jfieldID l; |
| jfieldID t; |
| jfieldID r; |
| jfieldID b; |
| }; |
| static ro_t ro; |
| |
| struct po_t { |
| jfieldID x; |
| jfieldID y; |
| }; |
| static po_t po; |
| |
| struct co_t { |
| jfieldID surfaceFormat; |
| }; |
| static co_t co; |
| |
| struct no_t { |
| jfieldID native_canvas; |
| jfieldID native_region; |
| jfieldID native_parcel; |
| }; |
| static no_t no; |
| |
| |
| // ---------------------------------------------------------------------------- |
| // ---------------------------------------------------------------------------- |
| // ---------------------------------------------------------------------------- |
| |
| static void SurfaceSession_init(JNIEnv* env, jobject clazz) |
| { |
| sp<SurfaceComposerClient> client = new SurfaceComposerClient; |
| client->incStrong(clazz); |
| env->SetIntField(clazz, sso.client, (int)client.get()); |
| } |
| |
| static void SurfaceSession_destroy(JNIEnv* env, jobject clazz) |
| { |
| SurfaceComposerClient* client = |
| (SurfaceComposerClient*)env->GetIntField(clazz, sso.client); |
| if (client != 0) { |
| client->decStrong(clazz); |
| env->SetIntField(clazz, sso.client, 0); |
| } |
| } |
| |
| static void SurfaceSession_kill(JNIEnv* env, jobject clazz) |
| { |
| SurfaceComposerClient* client = |
| (SurfaceComposerClient*)env->GetIntField(clazz, sso.client); |
| if (client != 0) { |
| client->dispose(); |
| client->decStrong(clazz); |
| env->SetIntField(clazz, sso.client, 0); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static sp<SurfaceControl> getSurfaceControl(JNIEnv* env, jobject clazz) |
| { |
| SurfaceControl* const p = |
| (SurfaceControl*)env->GetIntField(clazz, so.surfaceControl); |
| return sp<SurfaceControl>(p); |
| } |
| |
| static void setSurfaceControl(JNIEnv* env, jobject clazz, |
| const sp<SurfaceControl>& surface) |
| { |
| SurfaceControl* const p = |
| (SurfaceControl*)env->GetIntField(clazz, so.surfaceControl); |
| if (surface.get()) { |
| surface->incStrong(clazz); |
| } |
| if (p) { |
| p->decStrong(clazz); |
| } |
| env->SetIntField(clazz, so.surfaceControl, (int)surface.get()); |
| } |
| |
| static sp<Surface> getSurface(JNIEnv* env, jobject clazz) |
| { |
| sp<Surface> result((Surface*)env->GetIntField(clazz, so.surface)); |
| if (result == 0) { |
| /* |
| * if this method is called from the WindowManager's process, it means |
| * the client is is not remote, and therefore is allowed to have |
| * a Surface (data), so we create it here. |
| * If we don't have a SurfaceControl, it means we're in a different |
| * process. |
| */ |
| |
| SurfaceControl* const control = |
| (SurfaceControl*)env->GetIntField(clazz, so.surfaceControl); |
| if (control) { |
| result = control->getSurface(); |
| if (result != 0) { |
| result->incStrong(clazz); |
| env->SetIntField(clazz, so.surface, (int)result.get()); |
| } |
| } |
| } |
| return result; |
| } |
| |
| sp<ANativeWindow> android_Surface_getNativeWindow( |
| JNIEnv* env, jobject clazz) { |
| return getSurface(env, clazz); |
| } |
| |
| static void setSurface(JNIEnv* env, jobject clazz, const sp<Surface>& surface) |
| { |
| Surface* const p = (Surface*)env->GetIntField(clazz, so.surface); |
| if (surface.get()) { |
| surface->incStrong(clazz); |
| } |
| if (p) { |
| p->decStrong(clazz); |
| } |
| env->SetIntField(clazz, so.surface, (int)surface.get()); |
| // This test is conservative and it would be better to compare the ISurfaces |
| if (p && p != surface.get()) { |
| jint generationId = env->GetIntField(clazz, so.surfaceGenerationId); |
| generationId++; |
| env->SetIntField(clazz, so.surfaceGenerationId, generationId); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static void Surface_init( |
| JNIEnv* env, jobject clazz, |
| jobject session, |
| jint, jstring jname, jint dpy, jint w, jint h, jint format, jint flags) |
| { |
| if (session == NULL) { |
| doThrowNPE(env); |
| return; |
| } |
| |
| SurfaceComposerClient* client = |
| (SurfaceComposerClient*)env->GetIntField(session, sso.client); |
| |
| sp<SurfaceControl> surface; |
| if (jname == NULL) { |
| surface = client->createSurface(dpy, w, h, format, flags); |
| } else { |
| const jchar* str = env->GetStringCritical(jname, 0); |
| const String8 name(str, env->GetStringLength(jname)); |
| env->ReleaseStringCritical(jname, str); |
| surface = client->createSurface(name, dpy, w, h, format, flags); |
| } |
| |
| if (surface == 0) { |
| jniThrowException(env, OutOfResourcesException, NULL); |
| return; |
| } |
| setSurfaceControl(env, clazz, surface); |
| } |
| |
| static void Surface_initParcel(JNIEnv* env, jobject clazz, jobject argParcel) |
| { |
| Parcel* parcel = (Parcel*)env->GetIntField(argParcel, no.native_parcel); |
| if (parcel == NULL) { |
| doThrowNPE(env); |
| return; |
| } |
| |
| sp<Surface> sur(Surface::readFromParcel(*parcel)); |
| setSurface(env, clazz, sur); |
| } |
| |
| static jint Surface_getIdentity(JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& control(getSurfaceControl(env, clazz)); |
| if (control != 0) return (jint) control->getIdentity(); |
| const sp<Surface>& surface(getSurface(env, clazz)); |
| if (surface != 0) return (jint) surface->getIdentity(); |
| return -1; |
| } |
| |
| static void Surface_destroy(JNIEnv* env, jobject clazz, uintptr_t *ostack) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (SurfaceControl::isValid(surface)) { |
| surface->clear(); |
| } |
| setSurfaceControl(env, clazz, 0); |
| setSurface(env, clazz, 0); |
| } |
| |
| static void Surface_release(JNIEnv* env, jobject clazz, uintptr_t *ostack) |
| { |
| setSurfaceControl(env, clazz, 0); |
| setSurface(env, clazz, 0); |
| } |
| |
| static jboolean Surface_isValid(JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& surfaceControl(getSurfaceControl(env, clazz)); |
| if (surfaceControl != 0) { |
| return SurfaceControl::isValid(surfaceControl) ? JNI_TRUE : JNI_FALSE; |
| } |
| const sp<Surface>& surface(getSurface(env, clazz)); |
| return Surface::isValid(surface) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static inline SkBitmap::Config convertPixelFormat(PixelFormat format) |
| { |
| /* note: if PIXEL_FORMAT_RGBX_8888 means that all alpha bytes are 0xFF, then |
| we can map to SkBitmap::kARGB_8888_Config, and optionally call |
| bitmap.setIsOpaque(true) on the resulting SkBitmap (as an accelerator) |
| */ |
| switch (format) { |
| case PIXEL_FORMAT_RGBX_8888: return SkBitmap::kARGB_8888_Config; |
| case PIXEL_FORMAT_RGBA_8888: return SkBitmap::kARGB_8888_Config; |
| case PIXEL_FORMAT_RGBA_4444: return SkBitmap::kARGB_4444_Config; |
| case PIXEL_FORMAT_RGB_565: return SkBitmap::kRGB_565_Config; |
| case PIXEL_FORMAT_A_8: return SkBitmap::kA8_Config; |
| default: return SkBitmap::kNo_Config; |
| } |
| } |
| |
| static jobject Surface_lockCanvas(JNIEnv* env, jobject clazz, jobject dirtyRect) |
| { |
| const sp<Surface>& surface(getSurface(env, clazz)); |
| if (!Surface::isValid(surface)) { |
| doThrowIAE(env); |
| return 0; |
| } |
| |
| // get dirty region |
| Region dirtyRegion; |
| if (dirtyRect) { |
| Rect dirty; |
| dirty.left = env->GetIntField(dirtyRect, ro.l); |
| dirty.top = env->GetIntField(dirtyRect, ro.t); |
| dirty.right = env->GetIntField(dirtyRect, ro.r); |
| dirty.bottom= env->GetIntField(dirtyRect, ro.b); |
| if (!dirty.isEmpty()) { |
| dirtyRegion.set(dirty); |
| } |
| } else { |
| dirtyRegion.set(Rect(0x3FFF,0x3FFF)); |
| } |
| |
| Surface::SurfaceInfo info; |
| status_t err = surface->lock(&info, &dirtyRegion); |
| if (err < 0) { |
| const char* const exception = (err == NO_MEMORY) ? |
| OutOfResourcesException : |
| "java/lang/IllegalArgumentException"; |
| jniThrowException(env, exception, NULL); |
| return 0; |
| } |
| |
| // Associate a SkCanvas object to this surface |
| jobject canvas = env->GetObjectField(clazz, so.canvas); |
| env->SetIntField(canvas, co.surfaceFormat, info.format); |
| |
| SkCanvas* nativeCanvas = (SkCanvas*)env->GetIntField(canvas, no.native_canvas); |
| SkBitmap bitmap; |
| ssize_t bpr = info.s * bytesPerPixel(info.format); |
| bitmap.setConfig(convertPixelFormat(info.format), info.w, info.h, bpr); |
| if (info.format == PIXEL_FORMAT_RGBX_8888) { |
| bitmap.setIsOpaque(true); |
| } |
| if (info.w > 0 && info.h > 0) { |
| bitmap.setPixels(info.bits); |
| } else { |
| // be safe with an empty bitmap. |
| bitmap.setPixels(NULL); |
| } |
| nativeCanvas->setBitmapDevice(bitmap); |
| |
| SkRegion clipReg; |
| if (dirtyRegion.isRect()) { // very common case |
| const Rect b(dirtyRegion.getBounds()); |
| clipReg.setRect(b.left, b.top, b.right, b.bottom); |
| } else { |
| size_t count; |
| Rect const* r = dirtyRegion.getArray(&count); |
| while (count) { |
| clipReg.op(r->left, r->top, r->right, r->bottom, SkRegion::kUnion_Op); |
| r++, count--; |
| } |
| } |
| |
| nativeCanvas->clipRegion(clipReg); |
| |
| int saveCount = nativeCanvas->save(); |
| env->SetIntField(clazz, so.saveCount, saveCount); |
| |
| if (dirtyRect) { |
| const Rect& bounds(dirtyRegion.getBounds()); |
| env->SetIntField(dirtyRect, ro.l, bounds.left); |
| env->SetIntField(dirtyRect, ro.t, bounds.top); |
| env->SetIntField(dirtyRect, ro.r, bounds.right); |
| env->SetIntField(dirtyRect, ro.b, bounds.bottom); |
| } |
| |
| return canvas; |
| } |
| |
| static void Surface_unlockCanvasAndPost( |
| JNIEnv* env, jobject clazz, jobject argCanvas) |
| { |
| jobject canvas = env->GetObjectField(clazz, so.canvas); |
| if (env->IsSameObject(canvas, argCanvas) == JNI_FALSE) { |
| doThrowIAE(env); |
| return; |
| } |
| |
| const sp<Surface>& surface(getSurface(env, clazz)); |
| if (!Surface::isValid(surface)) |
| return; |
| |
| // detach the canvas from the surface |
| SkCanvas* nativeCanvas = (SkCanvas*)env->GetIntField(canvas, no.native_canvas); |
| int saveCount = env->GetIntField(clazz, so.saveCount); |
| nativeCanvas->restoreToCount(saveCount); |
| nativeCanvas->setBitmapDevice(SkBitmap()); |
| env->SetIntField(clazz, so.saveCount, 0); |
| |
| // unlock surface |
| status_t err = surface->unlockAndPost(); |
| if (err < 0) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_unlockCanvas( |
| JNIEnv* env, jobject clazz, jobject argCanvas) |
| { |
| // XXX: this API has been removed |
| doThrowIAE(env); |
| } |
| |
| static void Surface_openTransaction( |
| JNIEnv* env, jobject clazz) |
| { |
| SurfaceComposerClient::openGlobalTransaction(); |
| } |
| |
| static void Surface_closeTransaction( |
| JNIEnv* env, jobject clazz) |
| { |
| SurfaceComposerClient::closeGlobalTransaction(); |
| } |
| |
| static void Surface_setOrientation( |
| JNIEnv* env, jobject clazz, jint display, jint orientation, jint flags) |
| { |
| int err = SurfaceComposerClient::setOrientation(display, orientation, flags); |
| if (err < 0) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_freezeDisplay( |
| JNIEnv* env, jobject clazz, jint display) |
| { |
| int err = SurfaceComposerClient::freezeDisplay(display, 0); |
| if (err < 0) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_unfreezeDisplay( |
| JNIEnv* env, jobject clazz, jint display) |
| { |
| int err = SurfaceComposerClient::unfreezeDisplay(display, 0); |
| if (err < 0) { |
| doThrowIAE(env); |
| } |
| } |
| |
| class ScreenshotPixelRef : public SkPixelRef { |
| public: |
| ScreenshotPixelRef(SkColorTable* ctable) { |
| fCTable = ctable; |
| SkSafeRef(ctable); |
| setImmutable(); |
| } |
| virtual ~ScreenshotPixelRef() { |
| SkSafeUnref(fCTable); |
| } |
| |
| status_t update(int width, int height, int minLayer, int maxLayer, bool allLayers) { |
| status_t res = (width > 0 && height > 0) |
| ? (allLayers |
| ? mScreenshot.update(width, height) |
| : mScreenshot.update(width, height, minLayer, maxLayer)) |
| : mScreenshot.update(); |
| if (res != NO_ERROR) { |
| return res; |
| } |
| |
| return NO_ERROR; |
| } |
| |
| uint32_t getWidth() const { |
| return mScreenshot.getWidth(); |
| } |
| |
| uint32_t getHeight() const { |
| return mScreenshot.getHeight(); |
| } |
| |
| uint32_t getStride() const { |
| return mScreenshot.getStride(); |
| } |
| |
| uint32_t getFormat() const { |
| return mScreenshot.getFormat(); |
| } |
| |
| protected: |
| // overrides from SkPixelRef |
| virtual void* onLockPixels(SkColorTable** ct) { |
| *ct = fCTable; |
| return (void*)mScreenshot.getPixels(); |
| } |
| |
| virtual void onUnlockPixels() { |
| } |
| |
| private: |
| ScreenshotClient mScreenshot; |
| SkColorTable* fCTable; |
| |
| typedef SkPixelRef INHERITED; |
| }; |
| |
| static jobject doScreenshot(JNIEnv* env, jobject clazz, jint width, jint height, |
| jint minLayer, jint maxLayer, bool allLayers) |
| { |
| ScreenshotPixelRef* pixels = new ScreenshotPixelRef(NULL); |
| if (pixels->update(width, height, minLayer, maxLayer, allLayers) != NO_ERROR) { |
| delete pixels; |
| return 0; |
| } |
| |
| uint32_t w = pixels->getWidth(); |
| uint32_t h = pixels->getHeight(); |
| uint32_t s = pixels->getStride(); |
| uint32_t f = pixels->getFormat(); |
| ssize_t bpr = s * android::bytesPerPixel(f); |
| |
| SkBitmap* bitmap = new SkBitmap(); |
| bitmap->setConfig(convertPixelFormat(f), w, h, bpr); |
| if (f == PIXEL_FORMAT_RGBX_8888) { |
| bitmap->setIsOpaque(true); |
| } |
| |
| if (w > 0 && h > 0) { |
| bitmap->setPixelRef(pixels)->unref(); |
| bitmap->lockPixels(); |
| } else { |
| // be safe with an empty bitmap. |
| delete pixels; |
| bitmap->setPixels(NULL); |
| } |
| |
| return GraphicsJNI::createBitmap(env, bitmap, false, NULL); |
| } |
| |
| static jobject Surface_screenshotAll(JNIEnv* env, jobject clazz, jint width, jint height) |
| { |
| return doScreenshot(env, clazz, width, height, 0, 0, true); |
| } |
| |
| static jobject Surface_screenshot(JNIEnv* env, jobject clazz, jint width, jint height, |
| jint minLayer, jint maxLayer, bool allLayers) |
| { |
| return doScreenshot(env, clazz, width, height, minLayer, maxLayer, false); |
| } |
| |
| static void Surface_setLayer( |
| JNIEnv* env, jobject clazz, jint zorder) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setLayer(zorder); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setPosition( |
| JNIEnv* env, jobject clazz, jint x, jint y) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setPosition(x, y); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setSize( |
| JNIEnv* env, jobject clazz, jint w, jint h) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setSize(w, h); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_hide( |
| JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->hide(); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_show( |
| JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->show(); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_freeze( |
| JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->freeze(); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_unfreeze( |
| JNIEnv* env, jobject clazz) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->unfreeze(); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setFlags( |
| JNIEnv* env, jobject clazz, jint flags, jint mask) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setFlags(flags, mask); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setTransparentRegion( |
| JNIEnv* env, jobject clazz, jobject argRegion) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| SkRegion* nativeRegion = (SkRegion*)env->GetIntField(argRegion, no.native_region); |
| |
| const SkIRect& b(nativeRegion->getBounds()); |
| Region reg(Rect(b.fLeft, b.fTop, b.fRight, b.fBottom)); |
| if (nativeRegion->isComplex()) { |
| SkRegion::Iterator it(*nativeRegion); |
| while (!it.done()) { |
| const SkIRect& r(it.rect()); |
| reg.addRectUnchecked(r.fLeft, r.fTop, r.fRight, r.fBottom); |
| it.next(); |
| } |
| } |
| |
| status_t err = surface->setTransparentRegionHint(reg); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setAlpha( |
| JNIEnv* env, jobject clazz, jfloat alpha) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setAlpha(alpha); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setMatrix( |
| JNIEnv* env, jobject clazz, |
| jfloat dsdx, jfloat dtdx, jfloat dsdy, jfloat dtdy) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setMatrix(dsdx, dtdx, dsdy, dtdy); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| static void Surface_setFreezeTint( |
| JNIEnv* env, jobject clazz, |
| jint tint) |
| { |
| const sp<SurfaceControl>& surface(getSurfaceControl(env, clazz)); |
| if (surface == 0) return; |
| status_t err = surface->setFreezeTint(tint); |
| if (err<0 && err!=NO_INIT) { |
| doThrowIAE(env); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static void Surface_copyFrom( |
| JNIEnv* env, jobject clazz, jobject other) |
| { |
| if (clazz == other) |
| return; |
| |
| if (other == NULL) { |
| doThrowNPE(env); |
| return; |
| } |
| |
| /* |
| * This is used by the WindowManagerService just after constructing |
| * a Surface and is necessary for returning the Surface reference to |
| * the caller. At this point, we should only have a SurfaceControl. |
| */ |
| |
| const sp<SurfaceControl>& surface = getSurfaceControl(env, clazz); |
| const sp<SurfaceControl>& rhs = getSurfaceControl(env, other); |
| if (!SurfaceControl::isSameSurface(surface, rhs)) { |
| // we reassign the surface only if it's a different one |
| // otherwise we would loose our client-side state. |
| setSurfaceControl(env, clazz, rhs); |
| } |
| } |
| |
| static void Surface_readFromParcel( |
| JNIEnv* env, jobject clazz, jobject argParcel) |
| { |
| Parcel* parcel = (Parcel*)env->GetIntField( argParcel, no.native_parcel); |
| if (parcel == NULL) { |
| doThrowNPE(env); |
| return; |
| } |
| |
| sp<Surface> sur(Surface::readFromParcel(*parcel)); |
| setSurface(env, clazz, sur); |
| } |
| |
| static void Surface_writeToParcel( |
| JNIEnv* env, jobject clazz, jobject argParcel, jint flags) |
| { |
| Parcel* parcel = (Parcel*)env->GetIntField( |
| argParcel, no.native_parcel); |
| |
| if (parcel == NULL) { |
| doThrowNPE(env); |
| return; |
| } |
| |
| const sp<SurfaceControl>& control(getSurfaceControl(env, clazz)); |
| SurfaceControl::writeSurfaceToParcel(control, parcel); |
| if (flags & PARCELABLE_WRITE_RETURN_VALUE) { |
| setSurfaceControl(env, clazz, 0); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| // ---------------------------------------------------------------------------- |
| // ---------------------------------------------------------------------------- |
| |
| const char* const kSurfaceSessionClassPathName = "android/view/SurfaceSession"; |
| const char* const kSurfaceClassPathName = "android/view/Surface"; |
| static void nativeClassInit(JNIEnv* env, jclass clazz); |
| |
| static JNINativeMethod gSurfaceSessionMethods[] = { |
| {"init", "()V", (void*)SurfaceSession_init }, |
| {"destroy", "()V", (void*)SurfaceSession_destroy }, |
| {"kill", "()V", (void*)SurfaceSession_kill }, |
| }; |
| |
| static JNINativeMethod gSurfaceMethods[] = { |
| {"nativeClassInit", "()V", (void*)nativeClassInit }, |
| {"init", "(Landroid/view/SurfaceSession;ILjava/lang/String;IIIII)V", (void*)Surface_init }, |
| {"init", "(Landroid/os/Parcel;)V", (void*)Surface_initParcel }, |
| {"getIdentity", "()I", (void*)Surface_getIdentity }, |
| {"destroy", "()V", (void*)Surface_destroy }, |
| {"release", "()V", (void*)Surface_release }, |
| {"copyFrom", "(Landroid/view/Surface;)V", (void*)Surface_copyFrom }, |
| {"isValid", "()Z", (void*)Surface_isValid }, |
| {"lockCanvasNative", "(Landroid/graphics/Rect;)Landroid/graphics/Canvas;", (void*)Surface_lockCanvas }, |
| {"unlockCanvasAndPost", "(Landroid/graphics/Canvas;)V", (void*)Surface_unlockCanvasAndPost }, |
| {"unlockCanvas", "(Landroid/graphics/Canvas;)V", (void*)Surface_unlockCanvas }, |
| {"openTransaction", "()V", (void*)Surface_openTransaction }, |
| {"closeTransaction", "()V", (void*)Surface_closeTransaction }, |
| {"setOrientation", "(III)V", (void*)Surface_setOrientation }, |
| {"freezeDisplay", "(I)V", (void*)Surface_freezeDisplay }, |
| {"unfreezeDisplay", "(I)V", (void*)Surface_unfreezeDisplay }, |
| {"screenshot", "(II)Landroid/graphics/Bitmap;", (void*)Surface_screenshotAll }, |
| {"screenshot", "(IIII)Landroid/graphics/Bitmap;", (void*)Surface_screenshot }, |
| {"setLayer", "(I)V", (void*)Surface_setLayer }, |
| {"setPosition", "(II)V",(void*)Surface_setPosition }, |
| {"setSize", "(II)V",(void*)Surface_setSize }, |
| {"hide", "()V", (void*)Surface_hide }, |
| {"show", "()V", (void*)Surface_show }, |
| {"freeze", "()V", (void*)Surface_freeze }, |
| {"unfreeze", "()V", (void*)Surface_unfreeze }, |
| {"setFlags", "(II)V",(void*)Surface_setFlags }, |
| {"setTransparentRegionHint","(Landroid/graphics/Region;)V", (void*)Surface_setTransparentRegion }, |
| {"setAlpha", "(F)V", (void*)Surface_setAlpha }, |
| {"setMatrix", "(FFFF)V", (void*)Surface_setMatrix }, |
| {"setFreezeTint", "(I)V", (void*)Surface_setFreezeTint }, |
| {"readFromParcel", "(Landroid/os/Parcel;)V", (void*)Surface_readFromParcel }, |
| {"writeToParcel", "(Landroid/os/Parcel;I)V", (void*)Surface_writeToParcel }, |
| }; |
| |
| void nativeClassInit(JNIEnv* env, jclass clazz) |
| { |
| so.surface = env->GetFieldID(clazz, ANDROID_VIEW_SURFACE_JNI_ID, "I"); |
| so.surfaceGenerationId = env->GetFieldID(clazz, "mSurfaceGenerationId", "I"); |
| so.surfaceControl = env->GetFieldID(clazz, "mSurfaceControl", "I"); |
| so.saveCount = env->GetFieldID(clazz, "mSaveCount", "I"); |
| so.canvas = env->GetFieldID(clazz, "mCanvas", "Landroid/graphics/Canvas;"); |
| |
| jclass surfaceSession = env->FindClass("android/view/SurfaceSession"); |
| sso.client = env->GetFieldID(surfaceSession, "mClient", "I"); |
| |
| jclass canvas = env->FindClass("android/graphics/Canvas"); |
| no.native_canvas = env->GetFieldID(canvas, "mNativeCanvas", "I"); |
| co.surfaceFormat = env->GetFieldID(canvas, "mSurfaceFormat", "I"); |
| |
| jclass region = env->FindClass("android/graphics/Region"); |
| no.native_region = env->GetFieldID(region, "mNativeRegion", "I"); |
| |
| jclass parcel = env->FindClass("android/os/Parcel"); |
| no.native_parcel = env->GetFieldID(parcel, "mObject", "I"); |
| |
| jclass rect = env->FindClass("android/graphics/Rect"); |
| ro.l = env->GetFieldID(rect, "left", "I"); |
| ro.t = env->GetFieldID(rect, "top", "I"); |
| ro.r = env->GetFieldID(rect, "right", "I"); |
| ro.b = env->GetFieldID(rect, "bottom", "I"); |
| |
| jclass point = env->FindClass("android/graphics/Point"); |
| po.x = env->GetFieldID(point, "x", "I"); |
| po.y = env->GetFieldID(point, "y", "I"); |
| } |
| |
| int register_android_view_Surface(JNIEnv* env) |
| { |
| int err; |
| err = AndroidRuntime::registerNativeMethods(env, kSurfaceSessionClassPathName, |
| gSurfaceSessionMethods, NELEM(gSurfaceSessionMethods)); |
| |
| err |= AndroidRuntime::registerNativeMethods(env, kSurfaceClassPathName, |
| gSurfaceMethods, NELEM(gSurfaceMethods)); |
| return err; |
| } |
| |
| }; |