Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
[qemu/ar7.git] / ui / sdl2-2d.c
blobbfebbdeaea8c304a59a111770a81f7063fe4ac4f
1 /*
2  * QEMU SDL display driver
3  *
4  * Copyright (c) 2003 Fabrice Bellard
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 /* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
26 #include "qemu/osdep.h"
27 #include "ui/console.h"
28 #include "ui/input.h"
29 #include "ui/sdl2.h"
31 void sdl2_2d_update(DisplayChangeListener *dcl,
32                     int x, int y, int w, int h)
34     struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
35     DisplaySurface *surf = scon->surface;
36     SDL_Rect rect;
37     size_t surface_data_offset;
38     assert(!scon->opengl);
40     if (!scon->texture) {
41         return;
42     }
44     surface_data_offset = surface_bytes_per_pixel(surf) * x +
45                           surface_stride(surf) * y;
46     rect.x = x;
47     rect.y = y;
48     rect.w = w;
49     rect.h = h;
51     SDL_UpdateTexture(scon->texture, &rect,
52                       surface_data(surf) + surface_data_offset,
53                       surface_stride(surf));
54     SDL_RenderClear(scon->real_renderer);
55     SDL_RenderCopy(scon->real_renderer, scon->texture, NULL, NULL);
56     SDL_RenderPresent(scon->real_renderer);
59 void sdl2_2d_switch(DisplayChangeListener *dcl,
60                     DisplaySurface *new_surface)
62     struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
63     DisplaySurface *old_surface = scon->surface;
64     int format = 0;
66     assert(!scon->opengl);
68     scon->surface = new_surface;
70     if (scon->texture) {
71         SDL_DestroyTexture(scon->texture);
72         scon->texture = NULL;
73     }
75     if (is_placeholder(new_surface) && qemu_console_get_index(dcl->con)) {
76         sdl2_window_destroy(scon);
77         return;
78     }
80     if (!scon->real_window) {
81         sdl2_window_create(scon);
82     } else if (old_surface &&
83                ((surface_width(old_surface)  != surface_width(new_surface)) ||
84                 (surface_height(old_surface) != surface_height(new_surface)))) {
85         sdl2_window_resize(scon);
86     }
88     SDL_RenderSetLogicalSize(scon->real_renderer,
89                              surface_width(new_surface),
90                              surface_height(new_surface));
92     switch (surface_format(scon->surface)) {
93     case PIXMAN_x1r5g5b5:
94         format = SDL_PIXELFORMAT_ARGB1555;
95         break;
96     case PIXMAN_r5g6b5:
97         format = SDL_PIXELFORMAT_RGB565;
98         break;
99     case PIXMAN_a8r8g8b8:
100     case PIXMAN_x8r8g8b8:
101         format = SDL_PIXELFORMAT_ARGB8888;
102         break;
103     case PIXMAN_a8b8g8r8:
104     case PIXMAN_x8b8g8r8:
105         format = SDL_PIXELFORMAT_ABGR8888;
106         break;
107     case PIXMAN_r8g8b8a8:
108     case PIXMAN_r8g8b8x8:
109         format = SDL_PIXELFORMAT_RGBA8888;
110         break;
111     case PIXMAN_b8g8r8x8:
112         format = SDL_PIXELFORMAT_BGRX8888;
113         break;
114     case PIXMAN_b8g8r8a8:
115         format = SDL_PIXELFORMAT_BGRA8888;
116         break;
117     default:
118         g_assert_not_reached();
119     }
120     scon->texture = SDL_CreateTexture(scon->real_renderer, format,
121                                       SDL_TEXTUREACCESS_STREAMING,
122                                       surface_width(new_surface),
123                                       surface_height(new_surface));
124     sdl2_2d_redraw(scon);
127 void sdl2_2d_refresh(DisplayChangeListener *dcl)
129     struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
131     assert(!scon->opengl);
132     graphic_hw_update(dcl->con);
133     sdl2_poll_events(scon);
136 void sdl2_2d_redraw(struct sdl2_console *scon)
138     assert(!scon->opengl);
140     if (!scon->surface) {
141         return;
142     }
143     sdl2_2d_update(&scon->dcl, 0, 0,
144                    surface_width(scon->surface),
145                    surface_height(scon->surface));
148 bool sdl2_2d_check_format(DisplayChangeListener *dcl,
149                           pixman_format_code_t format)
151     /*
152      * We let SDL convert for us a few more formats than,
153      * the native ones. Thes are the ones I have tested.
154      */
155     return (format == PIXMAN_x8r8g8b8 ||
156             format == PIXMAN_a8r8g8b8 ||
157             format == PIXMAN_a8b8g8r8 ||
158             format == PIXMAN_x8b8g8r8 ||
159             format == PIXMAN_b8g8r8x8 ||
160             format == PIXMAN_b8g8r8a8 ||
161             format == PIXMAN_r8g8b8x8 ||
162             format == PIXMAN_r8g8b8a8 ||
163             format == PIXMAN_x1r5g5b5 ||
164             format == PIXMAN_r5g6b5);