我写了很短的RS,但是在Gradle同步后Android Studio给了我错误
错误:(8,34)错误:没有匹配的调用函数 ' rsGetElementAt_uchar4'
脚本:
#pragma version(1)
#pragma rs java_package_name(xx.xxx.xxxxxxx)
uchar4 road = 0;
const uchar4 nothing = 0;
void init() {
road.a = 0xff;
}
uchar4 __attribute__((kernel)) kernel(uchar4 original, uint32_t x, uint32_t y) {
uchar4 masked = rsGetElementAt_uchar4(extra_alloc, x, y));
if (original.r != masked.r || original.g != masked.g || original.b != masked.b) {
return road;
} else {
return nothing;
}
}
在build.gradle中:
defaultConfig {
applicationId "xx.xxx.xxxxxxx"
minSdkVersion 21
targetSdkVersion 26
versionCode 1
versionName "1.0"
renderscriptTargetApi 24 // I've tried almost every possible value
renderscriptSupportModeEnabled true
}
相同的代码,但使用API 23有效:
#pragma version(1)
#pragma rs java_package_name(gl.kid.maptilt)
uchar4 road = 0; // I don't know, how to declare uchar4, any advice?
const uchar4 nothing = 0;
void init() {
road.a = 0xff;
}
uchar4 __attribute__((kernel)) root(uchar4 original, uchar4 masked, uint32_t x, uint32_t y) {
if (original.r != masked.r || original.g != masked.g || original.b != masked.b) {
return road;
} else {
return nothing;
}
}
答案 0 :(得分:2)
我将从免责声明开始,我对RenderScript了解不多。也就是说,我认为您遵循的代码类似于this question,但您错过了这一行:
rs_allocation extra_alloc;
注意Java中设置它的位:
script.set_extra_alloc(inAllocationExtra);