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 #include "sysemu/sysemu.h" 31 32 void sdl2_2d_update(DisplayChangeListener *dcl, 33 int x, int y, int w, int h) 34 { 35 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 36 DisplaySurface *surf = qemu_console_surface(dcl->con); 37 SDL_Rect rect; 38 size_t surface_data_offset; 39 assert(!scon->opengl); 40 41 if (!surf) { 42 return; 43 } 44 if (!scon->texture) { 45 return; 46 } 47 48 surface_data_offset = surface_bytes_per_pixel(surf) * x + 49 surface_stride(surf) * y; 50 rect.x = x; 51 rect.y = y; 52 rect.w = w; 53 rect.h = h; 54 55 SDL_UpdateTexture(scon->texture, &rect, 56 surface_data(surf) + surface_data_offset, 57 surface_stride(surf)); 58 SDL_RenderClear(scon->real_renderer); 59 SDL_RenderCopy(scon->real_renderer, scon->texture, NULL, NULL); 60 SDL_RenderPresent(scon->real_renderer); 61 } 62 63 void sdl2_2d_switch(DisplayChangeListener *dcl, 64 DisplaySurface *new_surface) 65 { 66 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 67 DisplaySurface *old_surface = scon->surface; 68 int format = 0; 69 70 assert(!scon->opengl); 71 72 scon->surface = new_surface; 73 74 if (scon->texture) { 75 SDL_DestroyTexture(scon->texture); 76 scon->texture = NULL; 77 } 78 79 if (!new_surface) { 80 sdl2_window_destroy(scon); 81 return; 82 } 83 84 if (!scon->real_window) { 85 sdl2_window_create(scon); 86 } else if (old_surface && 87 ((surface_width(old_surface) != surface_width(new_surface)) || 88 (surface_height(old_surface) != surface_height(new_surface)))) { 89 sdl2_window_resize(scon); 90 } 91 92 SDL_RenderSetLogicalSize(scon->real_renderer, 93 surface_width(new_surface), 94 surface_height(new_surface)); 95 96 switch (surface_format(scon->surface)) { 97 case PIXMAN_x1r5g5b5: 98 format = SDL_PIXELFORMAT_ARGB1555; 99 break; 100 case PIXMAN_r5g6b5: 101 format = SDL_PIXELFORMAT_RGB565; 102 break; 103 case PIXMAN_a8r8g8b8: 104 case PIXMAN_x8r8g8b8: 105 format = SDL_PIXELFORMAT_ARGB8888; 106 break; 107 case PIXMAN_a8b8g8r8: 108 case PIXMAN_x8b8g8r8: 109 format = SDL_PIXELFORMAT_ABGR8888; 110 break; 111 case PIXMAN_r8g8b8a8: 112 case PIXMAN_r8g8b8x8: 113 format = SDL_PIXELFORMAT_RGBA8888; 114 break; 115 case PIXMAN_b8g8r8x8: 116 format = SDL_PIXELFORMAT_BGRX8888; 117 break; 118 case PIXMAN_b8g8r8a8: 119 format = SDL_PIXELFORMAT_BGRA8888; 120 break; 121 default: 122 g_assert_not_reached(); 123 } 124 scon->texture = SDL_CreateTexture(scon->real_renderer, format, 125 SDL_TEXTUREACCESS_STREAMING, 126 surface_width(new_surface), 127 surface_height(new_surface)); 128 sdl2_2d_redraw(scon); 129 } 130 131 void sdl2_2d_refresh(DisplayChangeListener *dcl) 132 { 133 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 134 135 assert(!scon->opengl); 136 graphic_hw_update(dcl->con); 137 sdl2_poll_events(scon); 138 } 139 140 void sdl2_2d_redraw(struct sdl2_console *scon) 141 { 142 assert(!scon->opengl); 143 144 if (!scon->surface) { 145 return; 146 } 147 sdl2_2d_update(&scon->dcl, 0, 0, 148 surface_width(scon->surface), 149 surface_height(scon->surface)); 150 } 151 152 bool sdl2_2d_check_format(DisplayChangeListener *dcl, 153 pixman_format_code_t format) 154 { 155 /* 156 * We let SDL convert for us a few more formats than, 157 * the native ones. Thes are the ones I have tested. 158 */ 159 return (format == PIXMAN_x8r8g8b8 || 160 format == PIXMAN_a8r8g8b8 || 161 format == PIXMAN_a8b8g8r8 || 162 format == PIXMAN_x8b8g8r8 || 163 format == PIXMAN_b8g8r8x8 || 164 format == PIXMAN_b8g8r8a8 || 165 format == PIXMAN_r8g8b8x8 || 166 format == PIXMAN_r8g8b8a8 || 167 format == PIXMAN_x1r5g5b5 || 168 format == PIXMAN_r5g6b5); 169 } 170