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authorPo Lu2022-12-31 18:04:18 +0800
committerPo Lu2022-12-31 18:04:18 +0800
commitcfbc8a5dbcd362b69b37b4e6832ae4a31834364c (patch)
treece003d03c4ae98f4e1d02186d78e5ae6e0d36e55 /src/androidfont.c
parent785095c416f9bae43d2947849282b814e2c7942e (diff)
downloademacs-cfbc8a5dbcd362b69b37b4e6832ae4a31834364c.tar.gz
emacs-cfbc8a5dbcd362b69b37b4e6832ae4a31834364c.zip
Bring up the Android operating system and its window system
* .dir-locals.el (c-mode): Add ANDROID_EXPORT noise macro. * .gitignore: Add new files to ignore. * Makefile.in: Adjust for Android. * admin/merge-gnulib: Add new warning. * configure.ac: Detect Android. Run cross-configuration for Android when appropriate. * etc/DEBUG: Document how to debug Emacs on Android. * java/AndroidManifest.xml: * java/Makefile.in: * java/README: * java/debug.sh: * java/org/gnu/emacs/EmacsActivity.java (EmacsActivity): * java/org/gnu/emacs/EmacsApplication.java (EmacsApplication): * java/org/gnu/emacs/EmacsCopyArea.java (EmacsCopyArea): * java/org/gnu/emacs/EmacsDrawLine.java (EmacsDrawLine): * java/org/gnu/emacs/EmacsDrawPoint.java (EmacsDrawPoint): * java/org/gnu/emacs/EmacsDrawRectangle.java (EmacsDrawRectangle): * java/org/gnu/emacs/EmacsDrawable.java (EmacsDrawable): * java/org/gnu/emacs/EmacsFillPolygon.java (EmacsFillPolygon): * java/org/gnu/emacs/EmacsFillRectangle.java (EmacsFillRectangle): * java/org/gnu/emacs/EmacsFontDriver.java (EmacsFontDriver): * java/org/gnu/emacs/EmacsGC.java (EmacsGC): * java/org/gnu/emacs/EmacsHandleObject.java (EmacsHandleObject): * java/org/gnu/emacs/EmacsNative.java (EmacsNative): * java/org/gnu/emacs/EmacsPaintQueue.java (EmacsPaintQueue): * java/org/gnu/emacs/EmacsPaintReq.java (EmacsPaintReq): * java/org/gnu/emacs/EmacsPixmap.java (EmacsPixmap): * java/org/gnu/emacs/EmacsSdk7FontDriver.java (EmacsSdk7FontDriver): * java/org/gnu/emacs/EmacsService.java (class Holder<T>) (EmacsService): * java/org/gnu/emacs/EmacsSurfaceView.java (EmacsSurfaceView): * java/org/gnu/emacs/EmacsThread.java (EmacsThread): * java/org/gnu/emacs/EmacsView.java (EmacsView): * java/org/gnu/emacs/EmacsWindow.java (EmacsWindow): New files and classes. * lib-src/Makefile.in (srcdir): * lib/Makefile.in (VPATH): (HAVE_NATIVE_COMP): (libgnu_a_SOURCES): (DEPFLAGS): Configure correctly for cross-compiling. * lib/faccessat.c: * lib/fpending.c (__fpending): * lib/open.c: * lib/unistd.c (_GL_UNISTD_INLINE): Temporary adjustments to gnulib. * lisp/frame.el (display-graphic-p): (display-screens): (display-pixel-height): (display-pixel-width): (display-mm-height): (display-mm-width): (display-backing-store): (display-save-under): (display-planes): (display-color-cells): (display-visual-class): Adjust for new window system `android'. * lisp/image/wallpaper.el (x-open-connection): Add declaration. * lisp/loadup.el (featurep): Load up files for Android. * lisp/net/eww.el (eww-form-submit, eww-form-file) (eww-form-checkbox, eww-form-select): Adjust faces for android. * lisp/term/android-win.el: New file. * src/Makefile.in: Add new targets emacs.so and android-emacs, then adjust for cross compilation. * src/alloc.c (cleanup_vector): Clean up Android font entities as well. (garbage_collect): Mark androidterm. * src/android-emacs.c (main): * src/android.c (ANDROID_THROW, enum android_fd_table_entry_flags) (struct android_emacs_service, struct android_emacs_pixmap) (struct android_graphics_point, struct android_event_container) (struct android_event_queue, android_run_select_thread) (android_handle_sigusr1, android_init_events, android_pending) (android_next_event, android_write_event, android_select) (android_run_debug_thread, android_user_full_name) (android_get_asset_name, android_fstat, android_fstatat) (android_file_access_p, android_hack_asset_fd, android_open) (android_close, JNICALL, android_init_emacs_service) (android_init_emacs_pixmap, android_init_graphics_point) (MAX_HANDLE, struct android_handle_entry, android_alloc_id) (android_destroy_handle, android_resolve_handle) (android_resolve_handle2, android_change_window_attributes) (android_create_window, android_set_window_background) (android_destroy_window, android_init_android_rect_class) (android_init_emacs_gc_class, android_create_gc, android_free_gc) (android_change_gc, android_set_clip_rectangles) (android_reparent_window, android_lookup_method) (android_clear_window, android_map_window, android_unmap_window) (android_resize_window, android_move_window, android_swap_buffers) (android_get_gc_values, android_set_foreground) (android_fill_rectangle, android_create_pixmap_from_bitmap_data) (android_set_clip_mask, android_set_fill_style, android_copy_area) (android_free_pixmap, android_set_background, android_fill_polygon) (android_draw_rectangle, android_draw_point, android_draw_line) (android_create_pixmap, android_set_ts_origin, android_clear_area): * src/android.h (ANDROID_EXPORT): * src/androidfns.c (android_display_info_for_name) (check_android_display_info, check_x_display_info, gamma_correct) (android_defined_color, android_decode_color) (android_implicitly_set_name, android_explicitly_set_name) (android_set_tool_bar_lines, android_change_tool_bar_height) (android_set_tab_bar_lines, android_change_tab_bar_height) (android_set_scroll_bar_default_height) (android_set_scroll_bar_default_width, android_icon_verify) (android_icon, android_make_gc, android_free_gcs) (unwind_create_frame, do_unwind_create_frame) (android_default_font_parameter, android_create_frame_window) (Fx_create_frame, Fxw_color_defined_p, Fxw_color_values) (Fxw_display_color_p, Fx_display_grayscale_p) (Fx_display_pixel_width, Fx_display_pixel_height) (Fx_display_planes, Fx_display_color_cells, Fx_display_screens) (Fx_display_mm_width, Fx_display_mm_height) (Fx_display_backing_store, Fx_display_visual_class) (Fx_display_monitor_attributes_list, Fx_frame_geometry) (Fx_frame_list_z_order, Fx_frame_restack) (Fx_mouse_absolute_pixel_position) (Fx_set_mouse_absolute_pixel_position, Fandroid_get_connection) (Fx_display_list, Fx_show_tip, Fx_hide_tip) (android_set_background_color, android_set_border_color) (android_set_cursor_color, android_set_cursor_type) (android_set_foreground_color) (android_set_child_frame_border_width) (android_set_internal_border_width, android_set_menu_bar_lines) (android_set_mouse_color, android_set_title, android_set_alpha) (android_frame_parm_handlers, syms_of_androidfns): * src/androidfont.c (struct android_emacs_font_driver) (struct android_emacs_font_spec, struct android_emacs_font_metrics) (struct android_emacs_font_object, struct android_integer) (struct androidfont_info, struct androidfont_entity) (android_init_font_driver, android_init_font_spec) (android_init_font_metrics, android_init_integer) (android_init_font_object, androidfont_get_cache) (androidfont_from_lisp, androidfont_from_java, androidfont_list) (androidfont_match, androidfont_draw, androidfont_open_font) (androidfont_close_font, androidfont_has_char) (androidfont_encode_char, androidfont_text_extents) (androidfont_list_family, androidfont_driver) (syms_of_androidfont_for_pdumper, syms_of_androidfont) (init_androidfont, android_finalize_font_entity): * src/androidgui.h (_ANDROID_GUI_H_, struct android_rectangle) (struct android_point, enum android_gc_function) (enum android_gc_value_mask, enum android_fill_style) (enum android_window_value_mask) (struct android_set_window_attributes, struct android_gc_values) (struct android_gc, enum android_swap_action, enum android_shape) (enum android_coord_mode, struct android_swap_info) (NativeRectangle, struct android_any_event) (struct android_key_event, struct android_configure_event) (union android_event): * src/androidterm.c (android_window_to_frame, android_clear_frame) (android_ring_bell, android_toggle_invisible_pointer) (android_update_begin, android_update_end, show_back_buffer) (android_flush_dirty_back_buffer_on, handle_one_android_event) (android_read_socket, android_frame_up_to_date) (android_buffer_flipping_unblocked_hook) (android_query_frame_background_color, android_parse_color) (android_alloc_nearest_color, android_query_colors) (android_mouse_position, android_get_focus_frame) (android_focus_frame, android_frame_rehighlight) (android_frame_raise_lower, android_make_frame_visible) (android_make_frame_invisible) (android_make_frame_visible_invisible, android_fullscreen_hook) (android_iconify_frame, android_set_window_size_1) (android_set_window_size, android_set_offset, android_set_alpha) (android_new_font, android_bitmap_icon, android_free_pixmap_hook) (android_free_frame_resources, android_delete_frame) (android_delete_terminal, android_scroll_run) (android_after_update_window_line, android_flip_and_flush) (android_clear_rectangle, android_reset_clip_rectangles) (android_clip_to_row, android_draw_fringe_bitmap) (android_set_cursor_gc, android_set_mouse_face_gc) (android_set_mode_line_face_gc, android_set_glyph_string_gc) (android_set_glyph_string_clipping) (android_set_glyph_string_clipping_exactly) (android_compute_glyph_string_overhangs) (android_clear_glyph_string_rect) (android_draw_glyph_string_background, android_fill_triangle) (android_make_point, android_inside_rect_p, android_clear_point) (android_draw_relief_rect, android_draw_box_rect) (HIGHLIGHT_COLOR_DARK_BOOST_LIMIT, android_setup_relief_color) (android_setup_relief_colors, android_draw_glyph_string_box) (android_draw_glyph_string_bg_rect, android_draw_image_relief) (android_draw_image_foreground, android_draw_image_foreground_1) (android_draw_image_glyph_string) (android_draw_stretch_glyph_string, android_draw_underwave) (android_draw_glyph_string_foreground) (android_draw_composite_glyph_string_foreground) (android_draw_glyphless_glyph_string_foreground) (android_draw_glyph_string, android_define_frame_cursor) (android_clear_frame_area, android_clear_under_internal_border) (android_draw_hollow_cursor, android_draw_bar_cursor) (android_draw_window_cursor, android_draw_vertical_window_border) (android_draw_window_divider, android_redisplay_interface) (frame_set_mouse_pixel_position, get_keysym_name) (android_create_terminal, android_term_init, syms_of_androidterm) (mark_androidterm): * src/androidterm.h (_ANDROID_TERM_H_, struct android_display_info) (struct android_output, FRAME_ANDROID_OUTPUT, XSCROLL_BAR): New files. * src/dired.c (file_attributes): Do not use openat on Android. * src/dispextern.h (No_Cursor): Define appropriately on Android. (struct glyph_string, struct face): Make gc field of type struct android_gc on Android. * src/dispnew.c (clear_current_matrices, clear_desired_matrices) (adjust_frame_glyphs_for_window_redisplay, free_glyphs) (update_frame, scrolling, char_ins_del_cost, update_frame_line) (init_display_interactive): Disable text terminal support completely on Android. Fix non-toolkit menus for non-X systems. * src/editfns.c (Fuser_full_name): Call android_user_full_name. * src/emacs.c (android_emacs_init): Make main this on Android. Prohibit argv sorting from exceeding end of argv. * src/epaths.in: Add path definitions for Android. * src/fileio.c (file_access_p): Call android_file_access_p. (file_name_directory): Avoid using openat on Android. (Fcopy_file): Adjust to call sys_fstat instead. (file_directory_p): (Finsert_file_contents): (write_region): Likewise. * src/filelock.c: * src/fns.c (Flocale_info): Pacify warning on Android. * src/font.c (font_make_entity_android): New function. * src/font.h: * src/frame.c (Fframep): (Fwindow_system): Handle new window system `android'. Update doc strings. (Fmake_terminal_frame): Disable on Android. (gui_display_get_resource): Disable get_string_resource_hook on Android. (syms_of_frame): New defsym `android'. * src/frame.h (GCALIGNED_STRUCT): Add new output data for Android. (ENUM_BF): Expand enumerator size. (FRAME_ANDROID_P, FRAME_WINDOW_P, MOUSE_HL_INFO): Add definitions for Android. * src/image.c (GET_PIXEL): (image_create_bitmap_from_file): (image_create_x_image_and_pixmap_1): (image_get_x_image): (slurp_file): (lookup_rgb_color): (image_to_emacs_colors): (image_from_emacs_colors): (image_pixmap_draw_cross): (image_disable_image): (MaskForeground): (gif_load): Add stubs for Android. * src/lisp.h: * src/lread.c (safe_to_load_version, maybe_swap_for_eln1, openp): * src/pdumper.c (pdumper_load): Call sys_fstat instead of fstat. * src/process.c (wait_reading_process_output): Use android_select instead of pselect. * src/scroll.c: Disable on Android. * src/sysdep.c (widen_foreground_group, reset_sys_modes) (init_signals, emacs_fstatat, sys_fstat): New function. (emacs_open, emacs_open_noquit, emacs_close): Implement differently on Android. (close_output_streams): Disable what is not required on Android. * src/term.c (OUTPUT1_IF, encode_terminal_code, string_cost) (string_cost_one_line, per_line_cost, calculate_costs) (struct fkey_table, tty_append_glyph, produce_glyphs) (tty_capable_p, Fsuspend_tty, Fresume_tty, device, init_tty) (maybe_fatal, syms_of_term): Disable text terminal support on Android. * src/termhooks.h (enum output_method): Add android output method. (GCALIGNED_STRUCT, TERMINAL_FONT_CACHE): Define for Android. * src/terminal.c (Fterminal_live_p): Implement for Android. * src/verbose.mk.in (AM_V_GLOBALS): Add JAVAC and DX. * src/xdisp.c (redisplay_internal): Disable text terminals on Android. (display_menu_bar): (display_tty_menu_item): (draw_row_with_mouse_face): (expose_frame): Make the non toolkit menu bar work on Android. * src/xfaces.c (GCGraphicsExposures): (x_create_gc): (x_free_gc): (Fx_load_color_file): Define for Android. * xcompile/Makefile.in (top_srcdir): (top_builddir): * xcompile/README: * xcompile/langinfo.h (nl_langinfo): New files.
Diffstat (limited to 'src/androidfont.c')
-rw-r--r--src/androidfont.c955
1 files changed, 955 insertions, 0 deletions
diff --git a/src/androidfont.c b/src/androidfont.c
new file mode 100644
index 00000000000..e312e55c54a
--- /dev/null
+++ b/src/androidfont.c
@@ -0,0 +1,955 @@
1/* Communication module for Android terminals.
2
3Copyright (C) 2023 Free Software Foundation, Inc.
4
5This file is part of GNU Emacs.
6
7GNU Emacs is free software: you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation, either version 3 of the License, or (at
10your option) any later version.
11
12GNU Emacs is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
19
20#include <config.h>
21
22#include "lisp.h"
23#include "dispextern.h"
24#include "composite.h"
25#include "blockinput.h"
26#include "charset.h"
27#include "frame.h"
28#include "window.h"
29#include "fontset.h"
30#include "androidterm.h"
31#include "character.h"
32#include "coding.h"
33#include "font.h"
34#include "termchar.h"
35#include "pdumper.h"
36#include "android.h"
37
38#ifndef ANDROID_STUBIFY
39
40#include <android/log.h>
41
42struct android_emacs_font_driver
43{
44 jclass class;
45 jmethodID list;
46 jmethodID match;
47 jmethodID list_families;
48 jmethodID open_font;
49 jmethodID has_char;
50 jmethodID text_extents;
51 jmethodID encode_char;
52
53 /* Static methods. */
54 jmethodID create_font_driver;
55};
56
57struct android_emacs_font_spec
58{
59 jclass class;
60 jfieldID foundry;
61 jfieldID family;
62 jfieldID adstyle;
63 jfieldID registry;
64 jfieldID width;
65 jfieldID weight;
66 jfieldID slant;
67 jfieldID size;
68 jfieldID spacing;
69 jfieldID avgwidth;
70};
71
72struct android_emacs_font_metrics
73{
74 jclass class;
75 jfieldID lbearing;
76 jfieldID rbearing;
77 jfieldID width;
78 jfieldID ascent;
79 jfieldID descent;
80};
81
82struct android_emacs_font_object
83{
84 jclass class;
85 jfieldID min_width;
86 jfieldID max_width;
87 jfieldID pixel_size;
88 jfieldID height;
89 jfieldID space_width;
90 jfieldID average_width;
91 jfieldID ascent;
92 jfieldID descent;
93 jfieldID underline_thickness;
94 jfieldID underline_position;
95 jfieldID baseline_offset;
96 jfieldID relative_compose;
97 jfieldID default_ascent;
98 jfieldID encoding_charset;
99 jfieldID repertory_charset;
100};
101
102struct android_integer
103{
104 jclass class;
105 jmethodID constructor;
106 jmethodID int_value;
107};
108
109struct androidfont_info
110{
111 /* The font pseudo-vector object. */
112 struct font font;
113
114 /* The Java-side font. */
115 jobject object;
116};
117
118struct androidfont_entity
119{
120 /* The font entity pvec. */
121 struct font_entity font;
122
123 /* The Java-side font entity. */
124 jobject object;
125};
126
127/* Method and class identifiers associated with the EmacsFontDriver
128 class. */
129
130struct android_emacs_font_driver font_driver_class;
131
132/* Field and class identifiers associated with the
133 EmacsFontDriver$FontSpec class. */
134
135struct android_emacs_font_spec font_spec_class;
136
137/* Method and class identifiers associated with the Integer class. */
138
139struct android_integer integer_class;
140
141/* Field and class identifiers associated with the
142 EmacsFontDriver$FontMetrics class. */
143
144struct android_emacs_font_metrics font_metrics_class;
145
146/* Field and class identifiers associated with the
147 EmacsFontDriver$FontObject class. */
148
149struct android_emacs_font_object font_object_class;
150
151/* The font cache. */
152
153static Lisp_Object font_cache;
154
155/* The Java-side font driver. */
156
157static jobject font_driver;
158
159
160
161/* Initialize the class and method identifiers for functions in the
162 EmacsFontDriver class, and place them in `font_driver_class'. */
163
164static void
165android_init_font_driver (void)
166{
167 jclass old;
168
169 font_driver_class.class
170 = (*android_java_env)->FindClass (android_java_env,
171 "org/gnu/emacs/EmacsFontDriver");
172 eassert (font_driver_class.class);
173
174 old = font_driver_class.class;
175 font_driver_class.class
176 = (jclass) (*android_java_env)->NewGlobalRef (android_java_env,
177 (jobject) old);
178 ANDROID_DELETE_LOCAL_REF (old);
179
180 if (!font_driver_class.class)
181 emacs_abort ();
182
183#define FIND_METHOD(c_name, name, signature) \
184 font_driver_class.c_name \
185 = (*android_java_env)->GetMethodID (android_java_env, \
186 font_driver_class.class, \
187 name, signature); \
188 eassert (font_driver_class.c_name);
189
190 FIND_METHOD (list, "list", "(Lorg/gnu/emacs/EmacsFontDriver$FontSpec;)"
191 "[Lorg/gnu/emacs/EmacsFontDriver$FontEntity;");
192 FIND_METHOD (match, "match", "(Lorg/gnu/emacs/EmacsFontDriver$FontSpec;)"
193 "Lorg/gnu/emacs/EmacsFontDriver$FontEntity;");
194 FIND_METHOD (list_families, "listFamilies", "()[Ljava/lang/String;");
195 FIND_METHOD (open_font, "openFont", "(Lorg/gnu/emacs/EmacsFontDriver$Font"
196 "Entity;I)Lorg/gnu/emacs/EmacsFontDriver$FontObject;");
197 FIND_METHOD (has_char, "hasChar", "(Lorg/gnu/emacs/EmacsFontDriver$Font"
198 "Spec;C)I");
199 FIND_METHOD (text_extents, "textExtents", "(Lorg/gnu/emacs/EmacsFontDriver"
200 "$FontObject;[I[Lorg/gnu/emacs/EmacsFontDriver$FontMetrics;)V");
201 FIND_METHOD (encode_char, "encodeChar", "(Lorg/gnu/emacs/EmacsFontDriver"
202 "$FontObject;C)I");
203
204 font_driver_class.create_font_driver
205 = (*android_java_env)->GetStaticMethodID (android_java_env,
206 font_driver_class.class,
207 "createFontDriver",
208 "()Lorg/gnu/emacs/"
209 "EmacsFontDriver;");
210 eassert (font_driver_class.create_font_driver);
211#undef FIND_METHOD
212}
213
214/* Initialize the class and field identifiers for functions in the
215 EmacsFontDriver$FontSpec class, and place them in
216 `font_spec_class'. */
217
218static void
219android_init_font_spec (void)
220{
221 jclass old;
222
223 font_spec_class.class
224 = (*android_java_env)->FindClass (android_java_env,
225 "org/gnu/emacs/EmacsFontDriver"
226 "$FontSpec");
227 eassert (font_spec_class.class);
228
229 old = font_spec_class.class;
230 font_spec_class.class
231 = (jclass) (*android_java_env)->NewGlobalRef (android_java_env,
232 (jobject) old);
233 ANDROID_DELETE_LOCAL_REF (old);
234
235 if (!font_spec_class.class)
236 emacs_abort ();
237
238#define FIND_FIELD(c_name, name, signature) \
239 font_spec_class.c_name \
240 = (*android_java_env)->GetFieldID (android_java_env, \
241 font_spec_class.class, \
242 name, signature); \
243 eassert (font_spec_class.c_name);
244
245 FIND_FIELD (foundry, "foundry", "Ljava/lang/String;");
246 FIND_FIELD (family, "family", "Ljava/lang/String;");
247 FIND_FIELD (adstyle, "adstyle", "Ljava/lang/String;");
248 FIND_FIELD (registry, "registry", "Ljava/lang/String;");
249 FIND_FIELD (width, "width", "Ljava/lang/Integer;");
250 FIND_FIELD (weight, "weight", "Ljava/lang/Integer;");
251 FIND_FIELD (slant, "slant", "Ljava/lang/Integer;");
252 FIND_FIELD (size, "size", "Ljava/lang/Integer;");
253 FIND_FIELD (spacing, "spacing", "Ljava/lang/Integer;");
254 FIND_FIELD (avgwidth, "avgwidth", "Ljava/lang/Integer;");
255#undef FIND_FIELD
256}
257
258static void
259android_init_font_metrics (void)
260{
261 jclass old;
262
263 font_metrics_class.class
264 = (*android_java_env)->FindClass (android_java_env,
265 "org/gnu/emacs/EmacsFontDriver"
266 "$FontMetrics");
267 eassert (font_metrics_class.class);
268
269 old = font_metrics_class.class;
270 font_metrics_class.class
271 = (jclass) (*android_java_env)->NewGlobalRef (android_java_env,
272 (jobject) old);
273 ANDROID_DELETE_LOCAL_REF (old);
274
275 if (!font_metrics_class.class)
276 emacs_abort ();
277
278#define FIND_FIELD(c_name, name, signature) \
279 font_metrics_class.c_name \
280 = (*android_java_env)->GetFieldID (android_java_env, \
281 font_metrics_class.class, \
282 name, signature); \
283 eassert (font_metrics_class.c_name);
284
285 FIND_FIELD (lbearing, "lbearing", "S");
286 FIND_FIELD (rbearing, "rbearing", "S");
287 FIND_FIELD (width, "width", "S");
288 FIND_FIELD (ascent, "ascent", "S");
289 FIND_FIELD (descent, "descent", "S");
290#undef FIND_FIELD
291}
292
293static void
294android_init_integer (void)
295{
296 jclass old;
297
298 integer_class.class
299 = (*android_java_env)->FindClass (android_java_env,
300 "java/lang/Integer");
301 eassert (integer_class.class);
302
303 old = integer_class.class;
304 integer_class.class
305 = (jclass) (*android_java_env)->NewGlobalRef (android_java_env,
306 (jobject) old);
307 ANDROID_DELETE_LOCAL_REF (old);
308
309 if (!integer_class.class)
310 emacs_abort ();
311
312#define FIND_METHOD(c_name, name, signature) \
313 integer_class.c_name \
314 = (*android_java_env)->GetMethodID (android_java_env, \
315 integer_class.class, \
316 name, signature); \
317 eassert (integer_class.c_name);
318
319 FIND_METHOD (constructor, "<init>", "(I)V");
320 FIND_METHOD (int_value, "intValue", "()I");
321#undef FIND_METHOD
322}
323
324static void
325android_init_font_object (void)
326{
327 jclass old;
328
329 font_object_class.class
330 = (*android_java_env)->FindClass (android_java_env,
331 "org/gnu/emacs/EmacsFontDriver"
332 "$FontObject");
333 eassert (font_object_class.class);
334
335 old = font_object_class.class;
336 font_object_class.class
337 = (jclass) (*android_java_env)->NewGlobalRef (android_java_env,
338 (jobject) old);
339 ANDROID_DELETE_LOCAL_REF (old);
340
341 if (!font_object_class.class)
342 emacs_abort ();
343
344#define FIND_FIELD(c_name, name, signature) \
345 font_object_class.c_name \
346 = (*android_java_env)->GetFieldID (android_java_env, \
347 font_object_class.class, \
348 name, signature); \
349 eassert (font_object_class.c_name);
350
351 FIND_FIELD (min_width, "minWidth", "I");
352 FIND_FIELD (max_width, "maxWidth", "I");
353 FIND_FIELD (pixel_size, "pixelSize", "I");
354 FIND_FIELD (height, "height", "I");
355 FIND_FIELD (space_width, "spaceWidth", "I");
356 FIND_FIELD (average_width, "averageWidth", "I");
357 FIND_FIELD (ascent, "ascent", "I");
358 FIND_FIELD (descent, "descent", "I");
359 FIND_FIELD (underline_thickness, "underlineThickness", "I");
360 FIND_FIELD (underline_position, "underlinePosition", "I");
361 FIND_FIELD (baseline_offset, "baselineOffset", "I");
362 FIND_FIELD (relative_compose, "relativeCompose", "I");
363 FIND_FIELD (default_ascent, "defaultAscent", "I");
364 FIND_FIELD (encoding_charset, "encodingCharset", "I");
365 FIND_FIELD (repertory_charset, "repertoryCharset", "I");
366#undef FIND_FIELD
367}
368
369static Lisp_Object
370androidfont_get_cache (struct frame *frame)
371{
372 return font_cache;
373}
374
375/* Return a local reference to an instance of EmacsFontDriver$FontSpec
376 with the same values as FONT. */
377
378static jobject
379androidfont_from_lisp (Lisp_Object font)
380{
381 jobject spec, integer;
382 jstring string;
383 Lisp_Object tem;
384
385 spec = (*android_java_env)->AllocObject (android_java_env,
386 font_spec_class.class);
387
388 if (!spec)
389 {
390 (*android_java_env)->ExceptionClear (android_java_env);
391 memory_full (0);
392 }
393
394#define DO_SYMBOL_FIELD(field, index) \
395 tem = AREF (font, index); \
396 if (SYMBOLP (tem)) \
397 { \
398 /* Java seems to DTRT with the Emacs string encoding, so this does \
399 not matter at all. */ \
400 string = (*android_java_env)->NewStringUTF (android_java_env, \
401 SSDATA (SYMBOL_NAME (tem))); \
402 if (!string) \
403 { \
404 (*android_java_env)->ExceptionClear (android_java_env); \
405 memory_full (0); \
406 } \
407 \
408 (*android_java_env)->SetObjectField (android_java_env, spec, \
409 font_spec_class.field, \
410 string); \
411 ANDROID_DELETE_LOCAL_REF (string); \
412 } \
413
414 DO_SYMBOL_FIELD (foundry, FONT_FOUNDRY_INDEX);
415 DO_SYMBOL_FIELD (family, FONT_FAMILY_INDEX);
416 DO_SYMBOL_FIELD (adstyle, FONT_ADSTYLE_INDEX);
417 DO_SYMBOL_FIELD (registry, FONT_REGISTRY_INDEX);
418
419#undef DO_SYMBOL_FIELD
420
421#define DO_CARDINAL_FIELD(field, value) \
422 if (value != -1) \
423 { \
424 integer = (*android_java_env)->NewObject (android_java_env, \
425 integer_class.class, \
426 integer_class.constructor, \
427 (jint) value); \
428 if (!integer) \
429 { \
430 (*android_java_env)->ExceptionClear (android_java_env); \
431 memory_full (0); \
432 } \
433 \
434 (*android_java_env)->SetObjectField (android_java_env, spec, \
435 font_spec_class.field, \
436 integer); \
437 ANDROID_DELETE_LOCAL_REF (integer); \
438 }
439
440 DO_CARDINAL_FIELD (width, FONT_WIDTH_NUMERIC (font));
441 DO_CARDINAL_FIELD (weight, FONT_WEIGHT_NUMERIC (font));
442 DO_CARDINAL_FIELD (slant, FONT_SLANT_NUMERIC (font));
443 DO_CARDINAL_FIELD (size, (FIXNUMP (AREF (font, FONT_SIZE_INDEX))
444 ? XFIXNUM (AREF (font, FONT_SIZE_INDEX))
445 : -1));
446 DO_CARDINAL_FIELD (spacing, (FIXNUMP (AREF (font, FONT_SPACING_INDEX))
447 ? XFIXNUM (AREF (font, FONT_SPACING_INDEX))
448 : -1));
449 DO_CARDINAL_FIELD (avgwidth, (FIXNUMP (AREF (font, FONT_AVGWIDTH_INDEX))
450 ? XFIXNUM (AREF (font, FONT_AVGWIDTH_INDEX))
451 : -1));
452
453#undef DO_CARDINAL_FIELD
454
455 return spec;
456}
457
458static void
459androidfont_from_java (jobject spec, Lisp_Object entity)
460{
461 jobject tem;
462 jint value;
463 const char *string;
464
465#define DO_SYMBOL_FIELD(field, index) \
466 tem = (*android_java_env)->GetObjectField (android_java_env, \
467 spec, \
468 font_spec_class.field); \
469 if (tem) \
470 { \
471 string = (*android_java_env)->GetStringUTFChars (android_java_env, \
472 tem, NULL); \
473 if (!string) \
474 memory_full (0); \
475 ASET (entity, index, intern (string)); \
476 (*android_java_env)->ReleaseStringUTFChars (android_java_env, \
477 tem, string); \
478 ANDROID_DELETE_LOCAL_REF (tem); \
479 }
480
481 DO_SYMBOL_FIELD (foundry, FONT_FOUNDRY_INDEX);
482 DO_SYMBOL_FIELD (family, FONT_FAMILY_INDEX);
483 DO_SYMBOL_FIELD (adstyle, FONT_ADSTYLE_INDEX);
484 DO_SYMBOL_FIELD (registry, FONT_REGISTRY_INDEX);
485
486#undef DO_SYMBOL_FIELD
487#define DO_CARDINAL_FIELD(field, index, is_style) \
488 tem = (*android_java_env)->GetObjectField (android_java_env, \
489 spec, \
490 font_spec_class.field); \
491 if (tem) \
492 { \
493 value \
494 = (*android_java_env)->CallIntMethod (android_java_env, \
495 tem, \
496 integer_class.int_value); \
497 if (!is_style) \
498 ASET (entity, index, make_fixnum (value)); \
499 else \
500 FONT_SET_STYLE (entity, index, make_fixnum (value)); \
501 ANDROID_DELETE_LOCAL_REF (tem); \
502 }
503
504 DO_CARDINAL_FIELD (width, FONT_WIDTH_INDEX, true);
505 DO_CARDINAL_FIELD (weight, FONT_WEIGHT_INDEX, true);
506 DO_CARDINAL_FIELD (slant, FONT_SLANT_INDEX, true);
507 DO_CARDINAL_FIELD (size, FONT_SIZE_INDEX, false);
508 DO_CARDINAL_FIELD (spacing, FONT_SPACING_INDEX, false);
509 DO_CARDINAL_FIELD (avgwidth, FONT_AVGWIDTH_INDEX, false);
510#undef DO_CARDINAL_FIELD
511}
512
513/* Transfer the values from FONT, which must be some kind of font
514 entity, */
515
516static Lisp_Object
517androidfont_list (struct frame *f, Lisp_Object font_spec)
518{
519 jobject spec, array, tem;
520 jarray entities;
521 jsize i, size;
522 Lisp_Object value, entity;
523 struct androidfont_entity *info;
524
525 spec = androidfont_from_lisp (font_spec);
526 array = (*android_java_env)->CallObjectMethod (android_java_env,
527 font_driver,
528 font_driver_class.list,
529 spec);
530 (*android_java_env)->ExceptionClear (android_java_env);
531 ANDROID_DELETE_LOCAL_REF (spec);
532
533 if (!array)
534 memory_full (0);
535
536 entities = (jarray) array;
537 size = (*android_java_env)->GetArrayLength (android_java_env,
538 entities);
539 value = Qnil;
540
541 for (i = 0; i < size; ++i)
542 {
543 entity = font_make_entity_android (VECSIZE (struct androidfont_entity));
544 info = (struct androidfont_entity *) XFONT_ENTITY (entity);
545
546 /* The type must be set correctly, or font_open_entity won't be
547 able to find the right font driver. */
548 ASET (entity, FONT_TYPE_INDEX, Qandroid);
549
550 /* Clear this now in case GC happens without it set, which can
551 happen if androidfont_from_java runs out of memory. */
552 info->object = NULL;
553
554 tem = (*android_java_env)->GetObjectArrayElement (android_java_env,
555 entities, i);
556 androidfont_from_java (tem, entity);
557
558 /* Now, make a global reference to the Java font entity. */
559 info->object = (*android_java_env)->NewGlobalRef (android_java_env,
560 (jobject) tem);
561 (*android_java_env)->ExceptionClear (android_java_env);
562 ANDROID_DELETE_LOCAL_REF (tem);
563
564 if (!info->object)
565 memory_full (0);
566
567 value = Fcons (entity, value);
568 }
569
570 ANDROID_DELETE_LOCAL_REF (entities);
571 return Fnreverse (value);
572}
573
574static Lisp_Object
575androidfont_match (struct frame *f, Lisp_Object font_spec)
576{
577 jobject spec, result;
578 Lisp_Object entity;
579 struct androidfont_entity *info;
580
581 spec = androidfont_from_lisp (font_spec);
582 result = (*android_java_env)->CallObjectMethod (android_java_env,
583 font_driver,
584 font_driver_class.match,
585 spec);
586 (*android_java_env)->ExceptionClear (android_java_env);
587 ANDROID_DELETE_LOCAL_REF (spec);
588
589 if (!result)
590 memory_full (0);
591
592 entity = font_make_entity_android (VECSIZE (struct androidfont_entity));
593 info = (struct androidfont_entity *) XFONT_ENTITY (entity);
594
595 /* The type must be set correctly, or font_open_entity won't be able
596 to find the right font driver. */
597 ASET (entity, FONT_TYPE_INDEX, Qandroid);
598
599 info->object = NULL;
600 androidfont_from_java (result, entity);
601 info->object = (*android_java_env)->NewGlobalRef (android_java_env,
602 (jobject) result);
603 (*android_java_env)->ExceptionClear (android_java_env);
604 ANDROID_DELETE_LOCAL_REF (result);
605
606 if (!info->object)
607 memory_full (0);
608
609 return entity;
610}
611
612static int
613androidfont_draw (struct glyph_string *s, int from, int to,
614 int x, int y, bool with_background)
615{
616 return 0;
617}
618
619static Lisp_Object
620androidfont_open_font (struct frame *f, Lisp_Object font_entity, int x)
621{
622 struct androidfont_info *font_info;
623 struct androidfont_entity *entity;
624 struct font *font;
625 Lisp_Object font_object, tem;
626 jobject old;
627 jint value;
628
629 if (x <= 0)
630 {
631 /* Get pixel size from frame instead. */
632 tem = get_frame_param (f, Qfontsize);
633 x = NILP (tem) ? 0 : XFIXNAT (tem);
634 }
635
636 __android_log_print (ANDROID_LOG_DEBUG, __func__,
637 "opening font entity %"pI"x:%d",
638 (EMACS_INT) font_entity, x);
639
640 entity = (struct androidfont_entity *) XFONT_ENTITY (font_entity);
641
642 block_input ();
643 font_object = font_make_object (VECSIZE (struct androidfont_info),
644 font_entity, x);
645 ASET (font_object, FONT_TYPE_INDEX, Qandroid);
646 font_info = (struct androidfont_info *) XFONT_OBJECT (font_object);
647 font = &font_info->font;
648 font->driver = &androidfont_driver;
649
650 /* Clear font_info->object early in case GC happens later on! */
651 font_info->object = NULL;
652 unblock_input ();
653
654 font_info->object
655 = (*android_java_env)->CallObjectMethod (android_java_env,
656 font_driver,
657 font_driver_class.open_font,
658 entity->object, (jint) x);
659 if (!font_info->object)
660 {
661 (*android_java_env)->ExceptionClear (android_java_env);
662 return Qnil;
663 }
664
665 old = font_info->object;
666 font_info->object
667 = (*android_java_env)->NewGlobalRef (android_java_env, old);
668 (*android_java_env)->ExceptionClear (android_java_env);
669 ANDROID_DELETE_LOCAL_REF (old);
670
671 if (!font_info->object)
672 return Qnil;
673
674 /* Copy the font attributes from the Java object. */
675 androidfont_from_java (font_info->object, font_object);
676
677 /* Copy font attributes inside EmacsFontDriver$FontObject. */
678#define DO_CARDINAL_FIELD(field) \
679 value \
680 = (*android_java_env)->GetIntField (android_java_env, \
681 font_info->object, \
682 font_object_class.field); \
683 font->field = value;
684
685 DO_CARDINAL_FIELD (min_width);
686 DO_CARDINAL_FIELD (max_width);
687 DO_CARDINAL_FIELD (pixel_size);
688 DO_CARDINAL_FIELD (height);
689 DO_CARDINAL_FIELD (space_width);
690 DO_CARDINAL_FIELD (average_width);
691 DO_CARDINAL_FIELD (ascent);
692 DO_CARDINAL_FIELD (descent);
693 DO_CARDINAL_FIELD (underline_thickness);
694 DO_CARDINAL_FIELD (underline_position);
695 DO_CARDINAL_FIELD (baseline_offset);
696 DO_CARDINAL_FIELD (relative_compose);
697 DO_CARDINAL_FIELD (default_ascent);
698 DO_CARDINAL_FIELD (encoding_charset);
699 DO_CARDINAL_FIELD (repertory_charset);
700
701#undef DO_CARDINAL_FIELD
702
703 /* This should eventually become unnecessary. */
704 font->props[FONT_NAME_INDEX] = Ffont_xlfd_name (font_object, Qnil);
705
706 return font_object;
707}
708
709static void
710androidfont_close_font (struct font *font)
711{
712 struct androidfont_info *info;
713
714 info = (struct androidfont_info *) font;
715
716 /* If info->object is NULL, then FONT was unsuccessfully created,
717 and there is no global reference that has to be deleted. */
718
719 if (!info->object)
720 return;
721
722 (*android_java_env)->DeleteGlobalRef (android_java_env,
723 info->object);
724}
725
726static int
727androidfont_has_char (Lisp_Object font, int c)
728{
729 struct androidfont_info *info;
730 struct androidfont_entity *entity;
731
732 if (FONT_ENTITY_P (font))
733 {
734 entity = (struct androidfont_entity *) XFONT_ENTITY (font);
735
736 return (*android_java_env)->CallIntMethod (android_java_env,
737 font_driver,
738 font_driver_class.has_char,
739 entity->object, (jint) c);
740 }
741 else
742 {
743 info = (struct androidfont_info *) XFONT_OBJECT (font);
744
745 return (*android_java_env)->CallIntMethod (android_java_env,
746 font_driver,
747 font_driver_class.has_char,
748 info->object, (jint) c);
749 }
750}
751
752static unsigned
753androidfont_encode_char (struct font *font, int c)
754{
755 struct androidfont_info *info;
756
757 info = (struct androidfont_info *) font;
758
759 return (*android_java_env)->CallIntMethod (android_java_env,
760 font_driver,
761 font_driver_class.encode_char,
762 info->object, (jchar) c);
763}
764
765static void
766androidfont_text_extents (struct font *font, const unsigned int *code,
767 int nglyphs, struct font_metrics *metrics)
768{
769 struct androidfont_info *info;
770 jarray codepoint_array, metrics_array;
771 jobject metrics_object;
772 int i;
773 short value;
774
775 info = (struct androidfont_info *) font;
776
777 /* Allocate the arrays of code points and font metrics. */
778 codepoint_array
779 = (*android_java_env)->NewIntArray (android_java_env,
780 nglyphs);
781 if (!codepoint_array)
782 {
783 (*android_java_env)->ExceptionClear (android_java_env);
784 memory_full (0);
785 }
786
787 metrics_array
788 = (*android_java_env)->NewObjectArray (android_java_env,
789 nglyphs,
790 font_metrics_class.class,
791 NULL);
792 if (!metrics_array)
793 {
794 (*android_java_env)->ExceptionClear (android_java_env);
795 ANDROID_DELETE_LOCAL_REF (metrics_array);
796 memory_full (0);
797 }
798
799 if (sizeof (unsigned int) == sizeof (jint))
800 /* Always true on every Android device. */
801 (*android_java_env)->SetIntArrayRegion (android_java_env,
802 codepoint_array,
803 0, nglyphs,
804 (jint *) code);
805 else
806 emacs_abort ();
807
808 for (i = 0; i < nglyphs; ++i)
809 {
810 metrics_object
811 = (*android_java_env)->AllocObject (android_java_env,
812 font_metrics_class.class);
813
814 if (!metrics_object)
815 {
816 (*android_java_env)->ExceptionClear (android_java_env);
817 ANDROID_DELETE_LOCAL_REF (metrics_array);
818 ANDROID_DELETE_LOCAL_REF (codepoint_array);
819 memory_full (0);
820 }
821
822 (*android_java_env)->SetObjectArrayElement (android_java_env,
823 metrics_array, i,
824 metrics_object);
825 ANDROID_DELETE_LOCAL_REF (metrics_object);
826 }
827
828 (*android_java_env)->CallVoidMethod (android_java_env,
829 font_driver,
830 font_driver_class.text_extents,
831 info->object, codepoint_array,
832 metrics_array);
833
834 if ((*android_java_env)->ExceptionCheck (android_java_env))
835 {
836 (*android_java_env)->ExceptionClear (android_java_env);
837 ANDROID_DELETE_LOCAL_REF (metrics_array);
838 ANDROID_DELETE_LOCAL_REF (codepoint_array);
839 memory_full (0);
840 }
841
842 for (i = 0; i < nglyphs; ++i)
843 {
844 metrics_object
845 = (*android_java_env)->GetObjectArrayElement (android_java_env,
846 metrics_array, i);
847#define DO_CARDINAL_FIELD(field) \
848 value \
849 = (*android_java_env)->GetShortField (android_java_env, \
850 metrics_object, \
851 font_metrics_class.field); \
852 metrics[i].field = value;
853
854 DO_CARDINAL_FIELD (lbearing);
855 DO_CARDINAL_FIELD (rbearing);
856 DO_CARDINAL_FIELD (width);
857 DO_CARDINAL_FIELD (ascent);
858 DO_CARDINAL_FIELD (descent);
859
860#undef DO_CARDINAL_FIELD
861
862 ANDROID_DELETE_LOCAL_REF (metrics_object);
863 }
864
865 ANDROID_DELETE_LOCAL_REF (metrics_array);
866 ANDROID_DELETE_LOCAL_REF (codepoint_array);
867}
868
869static Lisp_Object
870androidfont_list_family (struct frame *f)
871{
872 return Qnil;
873}
874
875struct font_driver androidfont_driver =
876 {
877 .type = LISPSYM_INITIALLY (Qandroid),
878 .case_sensitive = true,
879 .get_cache = androidfont_get_cache,
880 .list = androidfont_list,
881 .match = androidfont_match,
882 .draw = androidfont_draw,
883 .open_font = androidfont_open_font,
884 .close_font = androidfont_close_font,
885 .has_char = androidfont_has_char,
886 .encode_char = androidfont_encode_char,
887 .text_extents = androidfont_text_extents,
888 .list_family = androidfont_list_family,
889 };
890
891static void
892syms_of_androidfont_for_pdumper (void)
893{
894 register_font_driver (&androidfont_driver, NULL);
895}
896
897void
898syms_of_androidfont (void)
899{
900 DEFSYM (Qfontsize, "fontsize");
901
902 pdumper_do_now_and_after_load (syms_of_androidfont_for_pdumper);
903
904 font_cache = list (Qnil);
905 staticpro (&font_cache);
906}
907
908void
909init_androidfont (void)
910{
911 jmethodID method;
912 jobject old;
913
914 android_init_font_driver ();
915 android_init_font_spec ();
916 android_init_font_metrics ();
917 android_init_font_object ();
918 android_init_integer ();
919
920 method = font_driver_class.create_font_driver;
921
922 /* Initialize the font driver on the Java side. */
923 font_driver
924 = (*android_java_env)->CallStaticObjectMethod (android_java_env,
925 font_driver_class.class,
926 method);
927
928 if (!font_driver)
929 memory_full (0);
930
931 old = font_driver;
932 font_driver
933 = (*android_java_env)->NewGlobalRef (android_java_env, font_driver);
934 ANDROID_DELETE_LOCAL_REF (old);
935
936 if (!font_driver)
937 memory_full (0);
938}
939
940void
941android_finalize_font_entity (struct font_entity *entity)
942{
943 struct androidfont_entity *info;
944
945 info = (struct androidfont_entity *) entity;
946
947 if (info->object)
948 (*android_java_env)->DeleteGlobalRef (android_java_env,
949 info->object);
950
951 /* Not sure if this can be called twice. */
952 info->object = NULL;
953}
954
955#endif
generated by cgit v1.2.1 (git 2.18.0) at 2026-01-18 23:18:29 +0000