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_getMatrix(JNIEnv * env,jobject obj,int native_matrix)48 static void Camera_getMatrix(JNIEnv* env, jobject obj, int native_matrix) {
49 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
50 v->getMatrix((SkMatrix*)native_matrix);
51 }
52
Camera_applyToCanvas(JNIEnv * env,jobject obj,int native_canvas)53 static void Camera_applyToCanvas(JNIEnv* env, jobject obj, int native_canvas) {
54 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
55 v->applyToCanvas((SkCanvas*)native_canvas);
56 }
57
Camera_dotWithNormal(JNIEnv * env,jobject obj,float x,float y,float z)58 static float Camera_dotWithNormal(JNIEnv* env, jobject obj,
59 float x, float y, float z) {
60 Sk3DView* v = (Sk3DView*)env->GetIntField(obj, gNativeInstanceFieldID);
61 SkScalar dot = v->dotWithNormal(SkFloatToScalar(x), SkFloatToScalar(y),
62 SkFloatToScalar(z));
63 return SkScalarToFloat(dot);
64 }
65
66 // ----------------------------------------------------------------------------
67
68 /*
69 * JNI registration.
70 */
71 static JNINativeMethod gCameraMethods[] = {
72 /* name, signature, funcPtr */
73
74 { "nativeConstructor", "()V", (void*)Camera_constructor },
75 { "nativeDestructor", "()V", (void*)Camera_destructor },
76 { "save", "()V", (void*)Camera_save },
77 { "restore", "()V", (void*)Camera_restore },
78 { "translate", "(FFF)V", (void*)Camera_translate },
79 { "rotateX", "(F)V", (void*)Camera_rotateX },
80 { "rotateY", "(F)V", (void*)Camera_rotateY },
81 { "rotateZ", "(F)V", (void*)Camera_rotateZ },
82 { "nativeGetMatrix", "(I)V", (void*)Camera_getMatrix },
83 { "nativeApplyToCanvas", "(I)V", (void*)Camera_applyToCanvas },
84 { "dotWithNormal", "(FFF)F", (void*)Camera_dotWithNormal }
85 };
86
87 int register_android_graphics_Camera(JNIEnv* env);
register_android_graphics_Camera(JNIEnv * env)88 int register_android_graphics_Camera(JNIEnv* env) {
89 jclass clazz = env->FindClass("android/graphics/Camera");
90 if (clazz == 0) {
91 return -1;
92 }
93 gNativeInstanceFieldID = env->GetFieldID(clazz, "native_instance", "I");
94 if (gNativeInstanceFieldID == 0) {
95 return -1;
96 }
97 return android::AndroidRuntime::registerNativeMethods(env,
98 "android/graphics/Camera",
99 gCameraMethods,
100 SK_ARRAY_COUNT(gCameraMethods));
101 }
102
103