@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
c 165 lines 5.21 KB
Raw
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 = scon->surface;
36 SDL_Rect rect;
37 size_t surface_data_offset;
38 assert(!scon->opengl);
39
40 if (!scon->texture) {
41 return;
42 }
43
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;
50
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);
57 }
58
59 void sdl2_2d_switch(DisplayChangeListener *dcl,
60 DisplaySurface *new_surface)
61 {
62 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
63 DisplaySurface *old_surface = scon->surface;
64 int format = 0;
65
66 assert(!scon->opengl);
67
68 scon->surface = new_surface;
69
70 if (scon->texture) {
71 SDL_DestroyTexture(scon->texture);
72 scon->texture = NULL;
73 }
74
75 if (surface_is_placeholder(new_surface) && qemu_console_get_index(dcl->con)) {
76 sdl2_window_destroy(scon);
77 return;
78 }
79
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 }
87
88 SDL_RenderSetLogicalSize(scon->real_renderer,
89 surface_width(new_surface),
90 surface_height(new_surface));
91
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);
125 }
126
127 void sdl2_2d_refresh(DisplayChangeListener *dcl)
128 {
129 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
130
131 assert(!scon->opengl);
132 qemu_console_hw_update(dcl->con);
133 sdl2_poll_events(scon);
134 }
135
136 void sdl2_2d_redraw(struct sdl2_console *scon)
137 {
138 assert(!scon->opengl);
139
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));
146 }
147
148 bool sdl2_2d_check_format(DisplayChangeListener *dcl,
149 pixman_format_code_t format)
150 {
151 /*
152 * We let SDL convert for us a few more formats than,
153 * the native ones. These 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);
165 }