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