David 'Digit' Turner | 055ae42 | 2010-07-27 11:34:16 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2010 The Android Open Source Project |
| 2 | ** |
| 3 | ** This software is licensed under the terms of the GNU General Public |
| 4 | ** License version 2, as published by the Free Software Foundation, and |
| 5 | ** may be copied, distributed, and modified under those terms. |
| 6 | ** |
| 7 | ** This program is distributed in the hope that it will be useful, |
| 8 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | ** GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | /* Initialization of the Android-specific DisplayState. |
| 14 | * Read docs/DISPLAY-STATE.TXT to understand what this |
| 15 | * is supposed to do. |
| 16 | */ |
| 17 | #include "android/display.h" |
David 'Digit' Turner | 18fe86e | 2010-10-19 08:07:11 +0200 | [diff] [blame] | 18 | #include "android/utils/system.h" |
David 'Digit' Turner | 055ae42 | 2010-07-27 11:34:16 -0700 | [diff] [blame] | 19 | |
| 20 | /* |
| 21 | |
| 22 | TECHNICAL NOTE: |
| 23 | |
| 24 | DisplayState <--> QFrameBuffer <--> QEmulator/SDL |
| 25 | |
| 26 | */ |
| 27 | |
| 28 | /* QFrameBuffer producer callbacks */ |
| 29 | |
| 30 | /* this is called periodically by the GUI timer to check for updates |
| 31 | * and poll user events. Use vga_hw_update(). |
| 32 | */ |
| 33 | static void |
| 34 | android_display_producer_check(void *opaque) |
| 35 | { |
| 36 | /* core: call vga_hw_update(). this will eventually |
| 37 | * lead to calls to android_display_update() |
| 38 | */ |
| 39 | (void)opaque; |
| 40 | vga_hw_update(); |
| 41 | } |
| 42 | |
| 43 | static void |
| 44 | android_display_producer_invalidate(void *opaque) |
| 45 | { |
| 46 | (void)opaque; |
| 47 | vga_hw_invalidate(); |
| 48 | } |
| 49 | |
| 50 | /* QFrameBuffer client callbacks */ |
| 51 | |
| 52 | /* this is called from dpy_update() each time a hardware framebuffer |
| 53 | * rectangular update was detected. Send this to the QFrameBuffer. |
| 54 | */ |
| 55 | static void |
| 56 | android_display_update(DisplayState *ds, int x, int y, int w, int h) |
| 57 | { |
| 58 | QFrameBuffer* qfbuff = ds->opaque; |
| 59 | qframebuffer_update(qfbuff, x, y, w, h); |
| 60 | } |
| 61 | |
| 62 | static void |
| 63 | android_display_resize(DisplayState *ds) |
| 64 | { |
| 65 | QFrameBuffer* qfbuff = ds->opaque; |
| 66 | qframebuffer_rotate(qfbuff, 0); |
| 67 | } |
| 68 | |
| 69 | static void |
| 70 | android_display_refresh(DisplayState *ds) |
| 71 | { |
| 72 | QFrameBuffer* qfbuff = ds->opaque; |
| 73 | qframebuffer_poll(qfbuff); |
| 74 | } |
| 75 | |
| 76 | |
| 77 | void android_display_init(DisplayState* ds, QFrameBuffer* qf) |
| 78 | { |
| 79 | DisplayChangeListener* dcl; |
| 80 | |
| 81 | qframebuffer_set_producer(qf, ds, |
| 82 | android_display_producer_check, |
| 83 | android_display_producer_invalidate, |
| 84 | NULL); // detach |
| 85 | |
| 86 | /* Replace the display surface with one with the right dimensions */ |
| 87 | qemu_free_displaysurface(ds); |
| 88 | ds->opaque = qf; |
| 89 | ds->surface = qemu_create_displaysurface_from(qf->width, |
| 90 | qf->height, |
David 'Digit' Turner | 97d795c | 2011-01-16 01:42:37 +0100 | [diff] [blame] | 91 | qf->bits_per_pixel, |
David 'Digit' Turner | 055ae42 | 2010-07-27 11:34:16 -0700 | [diff] [blame] | 92 | qf->pitch, |
| 93 | qf->pixels); |
| 94 | |
| 95 | /* Register a change listener for it */ |
David 'Digit' Turner | 18fe86e | 2010-10-19 08:07:11 +0200 | [diff] [blame] | 96 | ANEW0(dcl); |
David 'Digit' Turner | 055ae42 | 2010-07-27 11:34:16 -0700 | [diff] [blame] | 97 | dcl->dpy_update = android_display_update; |
| 98 | dcl->dpy_resize = android_display_resize; |
| 99 | dcl->dpy_refresh = android_display_refresh; |
| 100 | dcl->dpy_text_cursor = NULL; |
| 101 | |
| 102 | register_displaychangelistener(ds, dcl); |
| 103 | } |