Merge remote-tracking branch 'remotes/philmd-gitlab/tags/edk2-next-20200121' into...
[qemu.git] / ui / sdl2-2d.c
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. */
25
26 #include "qemu/osdep.h"
27 #include "ui/console.h"
28 #include "ui/input.h"
29 #include "ui/sdl2.h"
30
31 void sdl2_2d_update(DisplayChangeListener *dcl,
32 int x, int y, int w, int h)
33 {
34 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
35 DisplaySurface *surf = qemu_console_surface(dcl->con);
36 SDL_Rect rect;
37 size_t surface_data_offset;
38 assert(!scon->opengl);
39
40 if (!surf) {
41 return;
42 }
43 if (!scon->texture) {
44 return;
45 }
46
47 surface_data_offset = surface_bytes_per_pixel(surf) * x +
48 surface_stride(surf) * y;
49 rect.x = x;
50 rect.y = y;
51 rect.w = w;
52 rect.h = h;
53
54 SDL_UpdateTexture(scon->texture, &rect,
55 surface_data(surf) + surface_data_offset,
56 surface_stride(surf));
57 SDL_RenderClear(scon->real_renderer);
58 SDL_RenderCopy(scon->real_renderer, scon->texture, NULL, NULL);
59 SDL_RenderPresent(scon->real_renderer);
60 }
61
62 void sdl2_2d_switch(DisplayChangeListener *dcl,
63 DisplaySurface *new_surface)
64 {
65 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
66 DisplaySurface *old_surface = scon->surface;
67 int format = 0;
68
69 assert(!scon->opengl);
70
71 scon->surface = new_surface;
72
73 if (scon->texture) {
74 SDL_DestroyTexture(scon->texture);
75 scon->texture = NULL;
76 }
77
78 if (!new_surface) {
79 sdl2_window_destroy(scon);
80 return;
81 }
82
83 if (!scon->real_window) {
84 sdl2_window_create(scon);
85 } else if (old_surface &&
86 ((surface_width(old_surface) != surface_width(new_surface)) ||
87 (surface_height(old_surface) != surface_height(new_surface)))) {
88 sdl2_window_resize(scon);
89 }
90
91 SDL_RenderSetLogicalSize(scon->real_renderer,
92 surface_width(new_surface),
93 surface_height(new_surface));
94
95 switch (surface_format(scon->surface)) {
96 case PIXMAN_x1r5g5b5:
97 format = SDL_PIXELFORMAT_ARGB1555;
98 break;
99 case PIXMAN_r5g6b5:
100 format = SDL_PIXELFORMAT_RGB565;
101 break;
102 case PIXMAN_a8r8g8b8:
103 case PIXMAN_x8r8g8b8:
104 format = SDL_PIXELFORMAT_ARGB8888;
105 break;
106 case PIXMAN_a8b8g8r8:
107 case PIXMAN_x8b8g8r8:
108 format = SDL_PIXELFORMAT_ABGR8888;
109 break;
110 case PIXMAN_r8g8b8a8:
111 case PIXMAN_r8g8b8x8:
112 format = SDL_PIXELFORMAT_RGBA8888;
113 break;
114 case PIXMAN_b8g8r8x8:
115 format = SDL_PIXELFORMAT_BGRX8888;
116 break;
117 case PIXMAN_b8g8r8a8:
118 format = SDL_PIXELFORMAT_BGRA8888;
119 break;
120 default:
121 g_assert_not_reached();
122 }
123 scon->texture = SDL_CreateTexture(scon->real_renderer, format,
124 SDL_TEXTUREACCESS_STREAMING,
125 surface_width(new_surface),
126 surface_height(new_surface));
127 sdl2_2d_redraw(scon);
128 }
129
130 void sdl2_2d_refresh(DisplayChangeListener *dcl)
131 {
132 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
133
134 assert(!scon->opengl);
135 graphic_hw_update(dcl->con);
136 sdl2_poll_events(scon);
137 }
138
139 void sdl2_2d_redraw(struct sdl2_console *scon)
140 {
141 assert(!scon->opengl);
142
143 if (!scon->surface) {
144 return;
145 }
146 sdl2_2d_update(&scon->dcl, 0, 0,
147 surface_width(scon->surface),
148 surface_height(scon->surface));
149 }
150
151 bool sdl2_2d_check_format(DisplayChangeListener *dcl,
152 pixman_format_code_t format)
153 {
154 /*
155 * We let SDL convert for us a few more formats than,
156 * the native ones. Thes are the ones I have tested.
157 */
158 return (format == PIXMAN_x8r8g8b8 ||
159 format == PIXMAN_a8r8g8b8 ||
160 format == PIXMAN_a8b8g8r8 ||
161 format == PIXMAN_x8b8g8r8 ||
162 format == PIXMAN_b8g8r8x8 ||
163 format == PIXMAN_b8g8r8a8 ||
164 format == PIXMAN_r8g8b8x8 ||
165 format == PIXMAN_r8g8b8a8 ||
166 format == PIXMAN_x1r5g5b5 ||
167 format == PIXMAN_r5g6b5);
168 }