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1e47824a79
Using the C API provided by SkiaSharp's skia fork instead of using cairo significantly improves performance. The API is also closer to the android Canvas API, which makes the implementation more straightforward.
71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
#include <gtk/gtk.h>
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#include "defines.h"
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#include "util.h"
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#include "../sk_area/include/c/sk_canvas.h"
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#include "../sk_area/include/c/sk_image.h"
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#include "generated_headers/android_graphics_Canvas.h"
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1save(JNIEnv *env, jclass this, jlong skia_canvas, jlong widget)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_canvas_save(canvas);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1restore(JNIEnv *env, jclass this, jlong skia_canvas, jlong widget)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_canvas_restore(canvas);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawLine(JNIEnv *env, jclass this_class, jlong skia_canvas, jlong widget, jfloat start_x, jfloat start_y, jfloat stop_x, jfloat stop_y, jlong skia_paint)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_paint_t *paint = (sk_paint_t *)_PTR(skia_paint);
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sk_canvas_draw_line(canvas, start_x, start_y, stop_x, stop_y, paint);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawBitmap(JNIEnv *env , jclass this_class, jlong skia_canvas, jlong widget, jlong _pixbuf, jfloat src_x, jfloat src_y, jfloat dest_x , jfloat dest_y, jfloat dest_w , jfloat dest_h, jlong skia_paint)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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GdkPixbuf *pixbuf = (GdkPixbuf *)_PTR(_pixbuf);
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sk_paint_t *paint = (sk_paint_t *)_PTR(skia_paint);
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sk_image_t *image = g_object_get_data(G_OBJECT(pixbuf), "sk_image");
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if(!image) {
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fprintf(stderr, "pixbuf doesn't have a skia image associated: %p\n", pixbuf);
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return;
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}
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sk_canvas_draw_image(canvas, image, dest_x, dest_y, paint);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawRect(JNIEnv *env, jclass this, jlong skia_canvas, jfloat left, jfloat top, jfloat right, jfloat bottom, jlong skia_paint)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_paint_t *paint = (sk_paint_t *)_PTR(skia_paint);
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// FIXME: this doesn't work great with dark mode, since the text stays light even if the game draws white background
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// sk_canvas_draw_rect(canvas, &(sk_rect_t){left, top, right, bottom}, paint);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1rotate(JNIEnv *env, jclass this, jlong skia_canvas, jlong widget, jfloat angle)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_canvas_rotate_degrees(canvas, angle);
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}
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JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1rotate_1and_1translate(JNIEnv *env, jclass this, jlong skia_canvas, jlong widget, jfloat angle, jfloat tx, jfloat ty)
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{
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sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
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sk_canvas_translate(canvas, tx, ty);
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sk_canvas_rotate_degrees(canvas, angle);
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sk_canvas_translate(canvas, -tx, -ty);
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}
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