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-common.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 39 assert(!scon->opengl); 40 41 if (!surf) { 42 return; 43 } 44 if (!scon->texture) { 45 return; 46 } 47 48 rect.x = x; 49 rect.y = y; 50 rect.w = w; 51 rect.h = h; 52 53 SDL_UpdateTexture(scon->texture, NULL, surface_data(surf), 54 surface_stride(surf)); 55 SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect); 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 (!new_surface) { 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_x8r8g8b8: 100 format = SDL_PIXELFORMAT_ARGB8888; 101 break; 102 case PIXMAN_r8g8b8x8: 103 format = SDL_PIXELFORMAT_RGBA8888; 104 break; 105 default: 106 g_assert_not_reached(); 107 } 108 scon->texture = SDL_CreateTexture(scon->real_renderer, format, 109 SDL_TEXTUREACCESS_STREAMING, 110 surface_width(new_surface), 111 surface_height(new_surface)); 112 sdl2_2d_redraw(scon); 113 } 114 115 void sdl2_2d_refresh(DisplayChangeListener *dcl) 116 { 117 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 118 119 assert(!scon->opengl); 120 graphic_hw_update(dcl->con); 121 sdl2_poll_events(scon); 122 } 123 124 void sdl2_2d_redraw(struct sdl2_console *scon) 125 { 126 assert(!scon->opengl); 127 128 if (!scon->surface) { 129 return; 130 } 131 sdl2_2d_update(&scon->dcl, 0, 0, 132 surface_width(scon->surface), 133 surface_height(scon->surface)); 134 } 135 136 bool sdl2_2d_check_format(DisplayChangeListener *dcl, 137 pixman_format_code_t format) 138 { 139 /* 140 * We let SDL convert for us a few more formats than, 141 * the native ones. Thes are the ones I have tested. 142 */ 143 return (format == PIXMAN_x8r8g8b8 || 144 format == PIXMAN_b8g8r8x8 || 145 format == PIXMAN_x1r5g5b5 || 146 format == PIXMAN_r5g6b5); 147 } 148