Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "android/graphics/canvas.h" |
| 18 | |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 19 | #include "TypeCast.h" |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 20 | #include "GraphicsJNI.h" |
| 21 | |
| 22 | #include <hwui/Canvas.h> |
| 23 | #include <utils/Color.h> |
| 24 | |
| 25 | #include <SkBitmap.h> |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 26 | #include <SkSurface.h> |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 27 | |
| 28 | using namespace android; |
| 29 | |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 30 | /* |
| 31 | * Converts a buffer and dataspace into an SkBitmap only if the resulting bitmap can be treated as a |
| 32 | * rendering destination for a Canvas. If the buffer is null or the format is one that we cannot |
| 33 | * render into with a Canvas then false is returned and the outBitmap param is unmodified. |
| 34 | */ |
| 35 | static bool convert(const ANativeWindow_Buffer* buffer, |
| 36 | int32_t /*android_dataspace_t*/ dataspace, |
| 37 | SkBitmap* outBitmap) { |
| 38 | if (buffer == nullptr) { |
| 39 | return false; |
| 40 | } |
| 41 | |
| 42 | sk_sp<SkColorSpace> cs(uirenderer::DataSpaceToColorSpace((android_dataspace)dataspace)); |
| 43 | SkImageInfo imageInfo = uirenderer::ANativeWindowToImageInfo(*buffer, cs); |
| 44 | size_t rowBytes = buffer->stride * imageInfo.bytesPerPixel(); |
| 45 | |
| 46 | // If SkSurface::MakeRasterDirect fails then we should as well as we will not be able to |
| 47 | // draw into the canvas. |
| 48 | sk_sp<SkSurface> surface = SkSurface::MakeRasterDirect(imageInfo, buffer->bits, rowBytes); |
| 49 | if (surface.get() != nullptr) { |
| 50 | if (outBitmap) { |
| 51 | outBitmap->setInfo(imageInfo, rowBytes); |
| 52 | outBitmap->setPixels(buffer->bits); |
| 53 | } |
| 54 | return true; |
| 55 | } |
| 56 | return false; |
| 57 | } |
| 58 | |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 59 | bool ACanvas_isSupportedPixelFormat(int32_t bufferFormat) { |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 60 | char pixels[8]; |
| 61 | ANativeWindow_Buffer buffer { 1, 1, 1, bufferFormat, pixels, {0} }; |
| 62 | return convert(&buffer, HAL_DATASPACE_UNKNOWN, nullptr); |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | ACanvas* ACanvas_getNativeHandleFromJava(JNIEnv* env, jobject canvasObj) { |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 66 | return TypeCast::toACanvas(GraphicsJNI::getNativeCanvas(env, canvasObj)); |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 67 | } |
| 68 | |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 69 | ACanvas* ACanvas_createCanvas(const ANativeWindow_Buffer* buffer, |
| 70 | int32_t /*android_dataspace_t*/ dataspace) { |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 71 | SkBitmap bitmap; |
| 72 | bool isValidBuffer = convert(buffer, dataspace, &bitmap); |
| 73 | return isValidBuffer ? TypeCast::toACanvas(Canvas::create_canvas(bitmap)) : nullptr; |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 74 | } |
| 75 | |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 76 | void ACanvas_destroyCanvas(ACanvas* canvas) { |
| 77 | delete TypeCast::toCanvas(canvas); |
| 78 | } |
| 79 | |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 80 | bool ACanvas_setBuffer(ACanvas* canvas, const ANativeWindow_Buffer* buffer, |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 81 | int32_t /*android_dataspace_t*/ dataspace) { |
Derek Sollenberger | 4aa30d0 | 2019-08-30 13:53:29 -0400 | [diff] [blame] | 82 | SkBitmap bitmap; |
| 83 | bool isValidBuffer = (buffer == nullptr) ? false : convert(buffer, dataspace, &bitmap); |
| 84 | TypeCast::toCanvas(canvas)->setBitmap(bitmap); |
| 85 | return isValidBuffer; |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | void ACanvas_clipRect(ACanvas* canvas, const ARect* clipRect, bool /*doAA*/) { |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 89 | //TODO update Canvas to take antialias param |
Derek Sollenberger | 9ca5bbe | 2019-08-14 15:50:59 -0400 | [diff] [blame] | 90 | TypeCast::toCanvas(canvas)->clipRect(clipRect->left, clipRect->top, clipRect->right, |
| 91 | clipRect->bottom, SkClipOp::kIntersect); |
| 92 | } |
| 93 | |
| 94 | void ACanvas_clipOutRect(ACanvas* canvas, const ARect* clipRect, bool /*doAA*/) { |
| 95 | //TODO update Canvas to take antialias param |
| 96 | TypeCast::toCanvas(canvas)->clipRect(clipRect->left, clipRect->top, clipRect->right, |
| 97 | clipRect->bottom, SkClipOp::kDifference); |
| 98 | } |
| 99 | |
| 100 | void ACanvas_drawRect(ACanvas* canvas, const ARect* rect, const APaint* paint) { |
| 101 | TypeCast::toCanvas(canvas)->drawRect(rect->left, rect->top, rect->right, rect->bottom, |
| 102 | TypeCast::toPaintRef(paint)); |
| 103 | } |
| 104 | |
| 105 | void ACanvas_drawBitmap(ACanvas* canvas, const ABitmap* bitmap, float left, float top, |
| 106 | const APaint* paint) { |
| 107 | TypeCast::toCanvas(canvas)->drawBitmap(TypeCast::toBitmapRef(bitmap), left, top, |
| 108 | TypeCast::toPaint(paint)); |
Derek Sollenberger | c287a77 | 2019-08-02 13:44:31 -0400 | [diff] [blame] | 109 | } |