1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <linux/kd.h>
17 #include <string>
18
19 #include <hilog/log.h>
20 #include <multimedia/image_framework/image/pixelmap_native.h>
21
22 #undef LOG_DOMAIN
23 #undef LOG_TAG
24 #define LOG_DOMAIN 0x3200
25 #define LOG_TAG "MY_TAG"
26
27 const uint8_t DATA_SIZE = 96;
28 const uint8_t OPTS_WIDTH = 6;
29 const uint8_t OPTS_HEIGHT = 4;
30 const float OPACITY_VALUE = 0.5;
31 const float SCALE_X = 2.0;
32 const float SCALE_Y = 1.0;
33 const float TRANSLATE_X = 50.0;
34 const float TRANSLATE_Y = 10.0;
35 const float ROTATE_ANGLE = 90.0;
36 const uint8_t REGION_X = 100;
37 const uint8_t REGION_Y = 100;
38 const uint8_t REGION_WIDTH = 6;
39 const uint8_t REGION_HEIGHT = 4;
40
CreatePixelMap(OH_PixelmapNative ** pixelmap)41 static Image_ErrorCode CreatePixelMap(OH_PixelmapNative **pixelmap)
42 {
43 uint8_t data[DATA_SIZE];
44 for (int i = 0; i < DATA_SIZE; i++) {
45 data[i] = i + 1;
46 }
47
48 // 创建参数结构体实例，并设置参数
49 OH_Pixelmap_InitializationOptions *createOpts;
50 OH_PixelmapInitializationOptions_Create(&createOpts);
51 OH_PixelmapInitializationOptions_SetWidth(createOpts, OPTS_WIDTH);
52 OH_PixelmapInitializationOptions_SetHeight(createOpts, OPTS_HEIGHT);
53 OH_PixelmapInitializationOptions_SetPixelFormat(createOpts, PIXEL_FORMAT_RGBA_8888);
54 OH_PixelmapInitializationOptions_SetAlphaType(createOpts, PIXELMAP_ALPHA_TYPE_UNKNOWN);
55
56 Image_ErrorCode errCode = OH_PixelmapNative_CreatePixelmap(data, DATA_SIZE, createOpts, pixelmap);
57
58 // 读取图像像素数据，结果写入数组里
59 uint8_t destination[DATA_SIZE];
60 size_t destinationSize = DATA_SIZE;
61 errCode = OH_PixelmapNative_ReadPixels(*pixelmap, destination, &destinationSize);
62 if (errCode != IMAGE_SUCCESS) {
63 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_ReadPixels failed, errCode: %{public}d.", errCode);
64 return errCode;
65 }
66
67 // 读取缓冲区中的图片数据，结果写入Pixelmap中
68 uint8_t source[DATA_SIZE];
69 size_t sourceSize = DATA_SIZE;
70 for (int i = 0; i < sourceSize; i++) {
71 source[i] = i + 1;
72 }
73 errCode = OH_PixelmapNative_WritePixels(*pixelmap, source, sourceSize);
74 if (errCode != IMAGE_SUCCESS) {
75 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_WritePixels failed, errCode:%{public}d.", errCode);
76 return errCode;
77 }
78
79 // 创建图片信息实例，并获取图像像素信息
80 OH_Pixelmap_ImageInfo *imageInfo;
81 OH_PixelmapImageInfo_Create(&imageInfo);
82 errCode = OH_PixelmapNative_GetImageInfo(*pixelmap, imageInfo);
83 if (errCode != IMAGE_SUCCESS) {
84 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_GetImageInfo failed, errCode: %{public}d.", errCode);
85 return errCode;
86 }
87
88 // 获取图片的宽，高，pixel格式，透明度等信息
89 uint32_t width, height, rowStride;
90 int32_t pixelFormat, alphaType;
91 OH_PixelmapImageInfo_GetWidth(imageInfo, &width);
92 OH_PixelmapImageInfo_GetHeight(imageInfo, &height);
93 OH_PixelmapImageInfo_GetRowStride(imageInfo, &rowStride);
94 OH_PixelmapImageInfo_GetPixelFormat(imageInfo, &pixelFormat);
95 OH_PixelmapImageInfo_GetAlphaType(imageInfo, &alphaType);
96 OH_PixelmapImageInfo_Release(imageInfo);
97 OH_LOG_INFO(LOG_APP, "pixelmapTest GetImageInfo success, width:%{public}d, height:%{public}d, rowStride:"
98 "%{public}d, pixelFormat:%{public}d, alphaType:%{public}d.", width, height, rowStride, pixelFormat, alphaType);
99
100 OH_PixelmapInitializationOptions_Release(createOpts);
101 return IMAGE_SUCCESS;
102 }
103
PixelmapTest()104 static Image_ErrorCode PixelmapTest()
105 {
106 // 创建Pixelmap实例
107 OH_PixelmapNative *pixelmap = nullptr;
108
109 Image_ErrorCode errCode = CreatePixelMap(&pixelmap);
110 if (errCode != IMAGE_SUCCESS) {
111 return errCode;
112 }
113
114 // 设置透明比率来让Pixelap达到对应的透明效果
115 errCode = OH_PixelmapNative_Opacity(pixelmap, OPACITY_VALUE);
116 if (errCode != IMAGE_SUCCESS) {
117 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Opacity failed, errCode: %{public}d.", errCode);
118 return errCode;
119 }
120
121 // 对图片进行缩放
122 errCode = OH_PixelmapNative_Scale(pixelmap, SCALE_X, SCALE_Y);
123 if (errCode != IMAGE_SUCCESS) {
124 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Scale failed, errCode: %{public}d.", errCode);
125 return errCode;
126 }
127
128 // 对图片进行位置变换
129 errCode = OH_PixelmapNative_Translate(pixelmap, TRANSLATE_X, TRANSLATE_Y);
130 if (errCode != IMAGE_SUCCESS) {
131 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Translate failed, errCode: %{public}d.", errCode);
132 return errCode;
133 }
134
135 // 对图片进行旋转
136 errCode = OH_PixelmapNative_Rotate(pixelmap, ROTATE_ANGLE);
137 if (errCode != IMAGE_SUCCESS) {
138 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Rotate failed, errCode: %{public}d.", errCode);
139 return errCode;
140 }
141
142 // 对图片进行翻转
143 errCode = OH_PixelmapNative_Flip(pixelmap, true, true);
144 if (errCode != IMAGE_SUCCESS) {
145 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Flip failed, errCode: %{public}d.", errCode);
146 return errCode;
147 }
148
149 // 对图片进行裁剪
150 Image_Region region;
151 region.x = REGION_X;
152 region.y = REGION_Y;
153 region.width = REGION_WIDTH;
154 region.height = REGION_HEIGHT;
155 errCode = OH_PixelmapNative_Crop(pixelmap, ®ion);
156 if (errCode != IMAGE_SUCCESS) {
157 OH_LOG_ERROR(LOG_APP, "pixelmapTest OH_PixelmapNative_Crop failed, errCode: %{public}d.", errCode);
158 return errCode;
159 }
160
161 // 释放Pixelmap, InitializationOptions实例
162 OH_PixelmapNative_Release(pixelmap);
163 return IMAGE_SUCCESS;
164 }