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implement drawing into Bitmaps with Canvas, make BitmapDrawable use use paintable, misc Bitmap improvements

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This commit is contained in:
Mis012
2024-03-16 15:00:22 +01:00
parent fa1aa36f6b
commit 2e864adc0f
10 changed files with 201 additions and 85 deletions
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30
src/api-impl-jni/android_graphics_Canvas.c
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@@ -10,6 +10,26 @@
#include "generated_headers/android_graphics_Canvas.h"
JNIEXPORT jlong JNICALL Java_android_graphics_Canvas_native_1canvas_1from_1bitmap(JNIEnv *env, jclass this, jlong _pixbuf)
{
GdkPixbuf *pixbuf = (GdkPixbuf *)_PTR(_pixbuf);
/* - copied from bitmap (TODO: refactor) - */
sk_imageinfo_t info = {
.width = gdk_pixbuf_get_width(pixbuf),
.height = gdk_pixbuf_get_height(pixbuf),
.colorType = RGBA_8888_SK_COLORTYPE, // is this correct?
.alphaType = PREMUL_SK_ALPHATYPE,
};
void *pixbuf_pixels = gdk_pixbuf_get_pixels(pixbuf);
int rowstride = gdk_pixbuf_get_rowstride(pixbuf);
// size_t pixbuf_size = rowstride * (info.height - 1)
// + /* last row: */ info.width * ((gdk_pixbuf_get_n_channels(pixbuf) * gdk_pixbuf_get_bits_per_sample(pixbuf) + 7) / 8);
/* --------------------------------------- */
return _INTPTR(sk_canvas_new_from_raster(&info, pixbuf_pixels, /*pixbuf_size*/rowstride, NULL));
}
JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1save(JNIEnv *env, jclass this, jlong skia_canvas, jlong widget)
{
sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
@@ -32,7 +52,10 @@ JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawLine(JNIEnv *env
sk_canvas_draw_line(canvas, start_x, start_y, stop_x, stop_y, paint);
}
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)
JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawBitmap(JNIEnv *env , jclass this_class, jlong skia_canvas, jlong widget, jlong _pixbuf,
jfloat src_left, jfloat src_top, jfloat src_right, jfloat src_bottom,
jfloat dst_left, jfloat dst_top, jfloat dst_right, jfloat dst_bottom,
jlong skia_paint)
{
sk_canvas_t *canvas = (sk_canvas_t *)_PTR(skia_canvas);
GdkPixbuf *pixbuf = (GdkPixbuf *)_PTR(_pixbuf);
@@ -40,10 +63,11 @@ JNIEXPORT void JNICALL Java_android_graphics_Canvas_native_1drawBitmap(JNIEnv *e
sk_image_t *image = g_object_get_data(G_OBJECT(pixbuf), "sk_image");
if(!image) {
fprintf(stderr, "pixbuf doesn't have a skia image associated: %p\n", pixbuf);
fprintf(stderr, "drawBitmap: pixbuf doesn't have a skia image associated: %p\n", pixbuf);
return;
}
sk_canvas_draw_image(canvas, image, dest_x, dest_y, paint);
sk_canvas_draw_image_rect(canvas, image, &(sk_rect_t){src_left, src_top, src_right, src_bottom},
&(sk_rect_t){dst_left, dst_top, dst_right, dst_bottom}, paint);
}
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)