1 #include "jni.h"
2 #include <android_runtime/AndroidRuntime.h>
3
4 #include "SkCamera.h"
5
6 static jfieldID gNativeInstanceFieldID;
7
Camera_constructor(JNIEnv * env,jobject obj)8 static void Camera_constructor(JNIEnv* env, jobject obj) {
9 Sk3DView* view = new Sk3DView;
10 env->SetIntField(obj, gNativeInstanceFieldID, (int)view);
11 }
12
Camera_destructor(JNIEnv * env,jobject obj)13 static void Camera_destructor(JNIEnv* env, jobject obj) {
14 delete (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
15 }
16
Camera_save(JNIEnv * env,jobject obj)17 static void Camera_save(JNIEnv* env, jobject obj) {
18 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
19 v->save();
20 }
21
Camera_restore(JNIEnv * env,jobject obj)22 static void Camera_restore(JNIEnv* env, jobject obj) {
23 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
24 v->restore();
25 }
26
Camera_translate(JNIEnv * env,jobject obj,float dx,float dy,float dz)27 static void Camera_translate(JNIEnv* env, jobject obj,
28 float dx, float dy, float dz) {
29 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
30 v->translate(SkFloatToScalar(dx), SkFloatToScalar(dy), SkFloatToScalar(dz));
31 }
32
Camera_rotateX(JNIEnv * env,jobject obj,float degrees)33 static void Camera_rotateX(JNIEnv* env, jobject obj, float degrees) {
34 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
35 v->rotateX(SkFloatToScalar(degrees));
36 }
37
Camera_rotateY(JNIEnv * env,jobject obj,float degrees)38 static void Camera_rotateY(JNIEnv* env, jobject obj, float degrees) {
39 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
40 v->rotateY(SkFloatToScalar(degrees));
41 }
42
Camera_rotateZ(JNIEnv * env,jobject obj,float degrees)43 static void Camera_rotateZ(JNIEnv* env, jobject obj, float degrees) {
44 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
45 v->rotateZ(SkFloatToScalar(degrees));
46 }
47
Camera_rotate(JNIEnv * env,jobject obj,jfloat x,jfloat y,jfloat z)48 static void Camera_rotate(JNIEnv* env, jobject obj, jfloat x, jfloat y, jfloat z) {
49 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
50 v->rotateX(SkFloatToScalar(x));
51 v->rotateY(SkFloatToScalar(y));
52 v->rotateZ(SkFloatToScalar(z));
53 }
54
Camera_setLocation(JNIEnv * env,jobject obj,jfloat x,jfloat y,jfloat z)55 static void Camera_setLocation(JNIEnv* env, jobject obj, jfloat x, jfloat y, jfloat z) {
56 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
57 v->setCameraLocation(SkFloatToScalar(x), SkFloatToScalar(y), SkFloatToScalar(z));
58 }
59
Camera_getMatrix(JNIEnv * env,jobject obj,int native_matrix)60 static void Camera_getMatrix(JNIEnv* env, jobject obj, int native_matrix) {
61 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
62 v->getMatrix((SkMatrix*)native_matrix);
63 }
64
Camera_applyToCanvas(JNIEnv * env,jobject obj,int native_canvas)65 static void Camera_applyToCanvas(JNIEnv* env, jobject obj, int native_canvas) {
66 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
67 v->applyToCanvas((SkCanvas*)native_canvas);
68 }
69
Camera_dotWithNormal(JNIEnv * env,jobject obj,float x,float y,float z)70 static float Camera_dotWithNormal(JNIEnv* env, jobject obj,
71 float x, float y, float z) {
72 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
73 SkScalar dot = v->dotWithNormal(SkFloatToScalar(x), SkFloatToScalar(y),
74 SkFloatToScalar(z));
75 return SkScalarToFloat(dot);
76 }
77
78 // ----------------------------------------------------------------------------
79
80 /*
81 * JNI registration.
82 */
83 static JNINativeMethod gCameraMethods[] = {
84 /* name, signature, funcPtr */
85
86 { "nativeConstructor", "()V", (void*)Camera_constructor },
87 { "nativeDestructor", "()V", (void*)Camera_destructor },
88 { "save", "()V", (void*)Camera_save },
89 { "restore", "()V", (void*)Camera_restore },
90 { "translate", "(FFF)V", (void*)Camera_translate },
91 { "rotateX", "(F)V", (void*)Camera_rotateX },
92 { "rotateY", "(F)V", (void*)Camera_rotateY },
93 { "rotateZ", "(F)V", (void*)Camera_rotateZ },
94 { "rotate", "(FFF)V", (void*)Camera_rotate },
95 { "setLocation", "(FFF)V", (void*)Camera_setLocation },
96 { "nativeGetMatrix", "(I)V", (void*)Camera_getMatrix },
97 { "nativeApplyToCanvas", "(I)V", (void*)Camera_applyToCanvas },
98 { "dotWithNormal", "(FFF)F", (void*)Camera_dotWithNormal }
99 };
100
register_android_graphics_Camera(JNIEnv * env)101 int register_android_graphics_Camera(JNIEnv* env) {
102 jclass clazz = env->FindClass("android/graphics/Camera");
103 if (clazz == 0) {
104 return -1;
105 }
106 gNativeInstanceFieldID = env->GetFieldID(clazz, "native_instance", "I");
107 if (gNativeInstanceFieldID == 0) {
108 return -1;
109 }
110 return android::AndroidRuntime::registerNativeMethods(env,
111 "android/graphics/Camera",
112 gCameraMethods,
113 SK_ARRAY_COUNT(gCameraMethods));
114 }
115