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Path: add arcTo and addArc, minor cleanup

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This commit is contained in:
Mis012
2025-06-10 00:48:11 +02:00
parent 6f627f7332
commit 65a7e34871
4 changed files with 108 additions and 14 deletions
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2
src/api-impl-jni/defines.h
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@@ -3,7 +3,7 @@
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#define DEG2RAD(deg) (deg * M_PI / 180)
#define DEG2RAD(deg) ((deg) * M_PI / 180)
#define __likely__(x) __builtin_expect(x, 1)
#define __unlikely__(x) __builtin_expect(x, 0)

16
src/api-impl-jni/generated_headers/android_graphics_Path.h
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@@ -79,6 +79,14 @@ JNIEXPORT void JNICALL Java_android_graphics_Path_native_1cubic_1to
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1quad_1to
(JNIEnv *, jclass, jlong, jfloat, jfloat, jfloat, jfloat);
/*
* Class: android_graphics_Path
* Method: native_arc_to
* Signature: (JFFFFFFZ)V
*/
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1arc_1to
(JNIEnv *, jclass, jlong, jfloat, jfloat, jfloat, jfloat, jfloat, jfloat, jboolean);
/*
* Class: android_graphics_Path
* Method: native_rel_move_to
@@ -111,6 +119,14 @@ JNIEXPORT void JNICALL Java_android_graphics_Path_native_1rel_1cubic_1to
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1rel_1quad_1to
(JNIEnv *, jclass, jlong, jfloat, jfloat, jfloat, jfloat);
/*
* Class: android_graphics_Path
* Method: native_add_arc
* Signature: (JFFFFFF)V
*/
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1add_1arc
(JNIEnv *, jclass, jlong, jfloat, jfloat, jfloat, jfloat, jfloat, jfloat);
/*
* Class: android_graphics_Path
* Method: native_add_path

49
src/api-impl-jni/graphics/android_graphics_Path.c
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@@ -51,6 +51,44 @@ JNIEXPORT void JNICALL Java_android_graphics_Path_native_1line_1to(JNIEnv *env,
gsk_path_builder_line_to(_PTR(builder_ptr), x, y);
}
/* translated to gsk_path_builder_svg_arc_to, maybe there are more performant ways to implement this? */
void Java_android_graphics_Path_native_1arc_1to(JNIEnv *env, jclass this, jlong builder_ptr, jfloat left, jfloat top, jfloat right, jfloat bottom,
jfloat start_angle_deg, jfloat sweep_angle_deg, jboolean force_move_to)
{
GskPathBuilder *builder = _PTR(builder_ptr);
/* compute ellipse center and radii */
const graphene_point_t center = GRAPHENE_POINT_INIT((left + right) / 2.0,
(top + bottom) / 2.0);
const double rx = fabs(right - left) / 2.0;
const double ry = fabs(bottom - top) / 2.0;
/* compute points on the ellipse from angles */
const double start_angle = DEG2RAD(start_angle_deg);
const double end_angle = DEG2RAD(start_angle_deg + sweep_angle_deg);
graphene_point_t p1;
graphene_point_t p2;
graphene_point_init(&p1,
center.x + rx * cos(start_angle),
center.y + ry * sin(start_angle));
graphene_point_init(&p2,
center.x + rx * cos(end_angle),
center.y + ry * sin(end_angle));
/* handle force_move_to */
if (force_move_to)
gsk_path_builder_move_to(builder, p1.x, p1.y);
else if (!graphene_point_equal(gsk_path_builder_get_current_point(builder), &p1))
gsk_path_builder_line_to(builder, p1.x, p1.y);
/* compute flags */
const gboolean large_arc_flag = (fabs(sweep_angle_deg) >= 180.0);
const gboolean sweep_flag = (sweep_angle_deg > 0.0);
gsk_path_builder_svg_arc_to(builder, rx, ry, 0.0, large_arc_flag, sweep_flag, p2.x, p2.y);
}
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1cubic_1to(JNIEnv *env, jclass this, jlong builder_ptr, jfloat x1, jfloat y1, jfloat x2, jfloat y2, jfloat x3, jfloat y3)
{
gsk_path_builder_cubic_to(_PTR(builder_ptr), x1, y1, x2, y2, x3, y3);
@@ -115,6 +153,17 @@ static gboolean path_foreach_transform(GskPathOperation op, const graphene_point
return TRUE;
}
void Java_android_graphics_Path_native_1add_1arc(JNIEnv *env, jclass this, jlong builder_ptr, jfloat left, jfloat top, jfloat right, jfloat bottom,
jfloat start_angle_deg, jfloat sweep_angle_deg)
{
GskPathBuilder *builder = _PTR(builder_ptr);
GskPath *path;
GskPathBuilder *arc_builder = gsk_path_builder_new();
Java_android_graphics_Path_native_1arc_1to(env, this, _INTPTR(arc_builder), left, top, right, bottom, start_angle_deg, sweep_angle_deg, true);
path = gsk_path_builder_free_to_path(arc_builder);
gsk_path_builder_add_path(builder, path);
}
JNIEXPORT void JNICALL Java_android_graphics_Path_native_1add_1path(JNIEnv *env, jclass this, jlong builder_ptr, jlong path_ptr, jlong matrix_ptr)
{
GskPathBuilder *builder = _PTR(builder_ptr);

55
src/api-impl/android/graphics/Path.java
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@@ -1,5 +1,7 @@
package android.graphics;
import android.util.Log;
/*
* Path is implemented as a GskPath or a GskPathBuilder. It can only be one of the two at a time.
* The methods getGskPath() and getBuilder() automatically convert between the two as needed.
@@ -82,6 +84,18 @@ public class Path {
native_line_to(getBuilder(), x, y);
}
public void arcTo(RectF oval, float startAngle, float sweepAngle, boolean forceMoveTo) {
arcTo(oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle, forceMoveTo);
}
public void arcTo(RectF oval, float startAngle, float sweepAngle) {
arcTo(oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle, false);
}
public void arcTo(float left, float top, float right, float bottom, float startAngle, float sweepAngle, boolean forceMoveTo) {
native_arc_to(getBuilder(), left, top, right, bottom, startAngle, sweepAngle, forceMoveTo);
}
public void cubicTo(float x1, float y1, float x2, float y2, float x3, float y3) {
native_cubic_to(getBuilder(), x1, y1, x2, y2, x3, y3);
}
@@ -90,12 +104,6 @@ public class Path {
native_quad_to(getBuilder(), x1, y1, x2, y2);
}
public void arcTo(RectF oval, float startAngle, float sweepAngle, boolean forceMoveTo) {}
public void arcTo(RectF oval, float startAngle, float sweepAngle) {}
public void arcTo(float left, float top, float right, float bottom, float startAngle, float sweepAngle, boolean forceMoveTo) {}
public void rMoveTo(float x, float y) {
native_rel_move_to(getBuilder(), x, y);
}
@@ -112,9 +120,13 @@ public class Path {
native_rel_quad_to(getBuilder(), x1, y1, x2, y2);
}
public void addArc (RectF oval, float startAngle, float sweepAngle) {}
public void addArc(RectF oval, float startAngle, float sweepAngle) {
addArc(oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle);
}
public void addArc (float left, float top, float right, float bottom, float startAngle, float sweepAngle) {}
public void addArc(float left, float top, float right, float bottom, float startAngle, float sweepAngle) {
native_add_arc(getBuilder(), left, top, right, bottom, startAngle, sweepAngle);
}
public void addPath(Path path, Matrix matrix) {
native_add_path(getBuilder(), path.getGskPath(), matrix.ni());
@@ -131,7 +143,11 @@ public class Path {
}
public void addRect(RectF rect, Direction direction) {
native_add_rect(getBuilder(), rect.left, rect.top, rect.right, rect.bottom);
addRect(rect.left, rect.top, rect.right, rect.bottom, direction);
}
public void addRect(float left, float top, float right, float bottom, Path.Direction dir) {
native_add_rect(getBuilder(), left, top, right, bottom);
}
public void addRoundRect(RectF rect, float[] radii, Direction direction) {
@@ -139,18 +155,26 @@ public class Path {
}
public void addRoundRect(float left, float top, float right, float bottom,
float[] radii, Direction direction) {}
float[] radii, Direction direction) {
Log.w("Path", "STUB: addRoundRect");
}
public void addRoundRect(RectF rect, float rx, float ry, Direction direction) {
addRoundRect(rect.left, rect.top, rect.right, rect.bottom, rx, ry, direction);
}
public void addRoundRect(float left, float top, float right, float bottom,
float rx, float ry, Direction direction) {}
float rx, float ry, Direction direction) {
addRoundRect(left, top, right, bottom, new float[]{rx, ry, rx, ry, rx, ry, rx, ry}, direction);
}
public void addOval(RectF rect, Direction direction) {}
public void addOval(RectF rect, Direction direction) {
Log.w("Path", "STUB: addOval");
}
public void addCircle(float x, float y, float radius, Direction direction) {}
public void addCircle(float x, float y, float radius, Direction direction) {
Log.w("Path", "STUB: addCircle");
}
public void transform(Matrix matrix) {
builder = native_transform(getGskPath(), matrix.ni());
@@ -169,10 +193,12 @@ public class Path {
}
public boolean op(Path path, Op op) {
Log.w("Path", "STUB: op");
return false;
}
public boolean op(Path path, Path dst, Op op) {
Log.w("Path", "STUB: op");
return false;
}
@@ -183,6 +209,7 @@ public class Path {
public void incReserve(int additionalPoints) {}
public boolean isConvex() {
Log.w("Path", "STUB: isConvex");
return false;
}
@@ -216,10 +243,12 @@ public class Path {
private static native void native_line_to(long builder, float x, float y);
private static native void native_cubic_to(long builder, float x1, float y1, float x2, float y2, float x3, float y3);
private static native void native_quad_to(long builder, float x1, float y1, float x2, float y2);
private static native void native_arc_to(long builder, float left, float top, float right, float bottom, float startAngle, float sweepAngle, boolean forceMoveTo);
private static native void native_rel_move_to(long builder, float x, float y);
private static native void native_rel_line_to(long builder, float x, float y);
private static native void native_rel_cubic_to(long builder, float x1, float y1, float x2, float y2, float x3, float y3);
private static native void native_rel_quad_to(long builder, float x1, float y1, float x2, float y2);
private static native void native_add_arc(long builder, float left, float top, float right, float bottom, float startAngle, float sweepAngle);
private static native void native_add_path(long builder, long path, long matrix);
private static native void native_add_rect(long builder, float left, float top, float right, float bottom);
private static native void native_get_bounds(long path, RectF rect);