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 | } |
169 | |