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reimplement Bitmap and Path using GdkTexture and GskPath

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This allows us to use GskCanvas for Bitmap rendering

This increases the required GTK version to >= 4.14.
This commit is contained in:
Julian Winkler
2024-12-19 20:20:40 +01:00
parent c076c1e545
commit cd2c69cf73
26 changed files with 498 additions and 3559 deletions
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75
src/api-impl-jni/graphics/android_graphics_Bitmap.c Normal file
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#include <gtk/gtk.h>
#include "../defines.h"
#include "../generated_headers/android_graphics_Bitmap.h"
JNIEXPORT jlong JNICALL Java_android_graphics_Bitmap_native_1create_1snapshot(JNIEnv *env, jclass class, jlong texture_ptr)
{
GtkSnapshot *snapshot = gtk_snapshot_new();
if (texture_ptr) {
GdkTexture *texture = GDK_TEXTURE(_PTR(texture_ptr));
gtk_snapshot_append_texture(snapshot, texture, &GRAPHENE_RECT_INIT(0, 0, gdk_texture_get_width(texture), gdk_texture_get_height(texture)));
g_object_unref(texture);
}
return _INTPTR(snapshot);
}
JNIEXPORT jlong JNICALL Java_android_graphics_Bitmap_native_1create_1texture(JNIEnv *env, jclass class, jlong snapshot_ptr, jint width, jint height)
{
GtkSnapshot *snapshot = _PTR(snapshot_ptr);
static GType renderer_type = 0;
if (!renderer_type) {
// Use same renderer type as for onscreen rendering.
GdkSurface *surface = gdk_surface_new_toplevel(gdk_display_get_default());
GskRenderer *renderer = gsk_renderer_new_for_surface(surface);
renderer_type = G_OBJECT_TYPE(renderer);
gsk_renderer_unrealize(renderer);
g_object_unref(renderer);
gdk_surface_destroy(surface);
}
GskRenderer *renderer = g_object_new(renderer_type, NULL);
gsk_renderer_realize(renderer, NULL, NULL);
GskRenderNode *node = snapshot ? gtk_snapshot_free_to_node(snapshot) : NULL;
graphene_rect_t bounds = GRAPHENE_RECT_INIT(0, 0, width, height);
if (!node)
node = gsk_color_node_new(&(GdkRGBA){.alpha = 0}, &bounds);
GdkTexture *texture = gsk_renderer_render_texture(renderer, node, &bounds);
gsk_render_node_unref(node);
gsk_renderer_unrealize(renderer);
g_object_unref(renderer);
return _INTPTR(texture);
}
JNIEXPORT jint JNICALL Java_android_graphics_Bitmap_native_1get_1width(JNIEnv *env, jclass class, jlong texture_ptr)
{
return gdk_texture_get_width(GDK_TEXTURE(_PTR(texture_ptr)));
}
JNIEXPORT jint JNICALL Java_android_graphics_Bitmap_native_1get_1height(JNIEnv *env, jclass class, jlong texture_ptr)
{
return gdk_texture_get_height(GDK_TEXTURE(_PTR(texture_ptr)));
}
JNIEXPORT jlong JNICALL Java_android_graphics_Bitmap_native_1erase_1color(JNIEnv *env, jclass class, jint color, jint width, jint height)
{
GdkRGBA rgba = {
.red = ((color >> 16) & 0xFF) / 255.f,
.green = ((color >> 8) & 0xFF) / 255.f,
.blue = ((color >> 0) & 0xFF) / 255.f,
.alpha = ((color >> 24) & 0xFF) / 255.f,
};
graphene_rect_t bounds = GRAPHENE_RECT_INIT(0, 0, width, height);
GtkSnapshot *snapshot = gtk_snapshot_new();
gtk_snapshot_append_color(snapshot, &rgba, &bounds);
return _INTPTR(snapshot);
}
JNIEXPORT void JNICALL Java_android_graphics_Bitmap_native_1recycle(JNIEnv *env, jclass class, jlong texture_ptr, jlong snapshot_ptr)
{
if (texture_ptr)
g_object_unref(GDK_TEXTURE(_PTR(texture_ptr)));
if (snapshot_ptr)
g_object_unref(GTK_SNAPSHOT(_PTR(snapshot_ptr)));
}