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 "qemu-common.h" 28 #include "ui/console.h" 29 #include "ui/input.h" 30 #include "ui/sdl2.h" 31 #include "sysemu/sysemu.h" 32 33 void sdl2_2d_update(DisplayChangeListener *dcl, 34 int x, int y, int w, int h) 35 { 36 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 37 DisplaySurface *surf = qemu_console_surface(dcl->con); 38 SDL_Rect rect; 39 size_t surface_data_offset = surface_bytes_per_pixel(surf) * x + 40 surface_stride(surf) * y; 41 42 assert(!scon->opengl); 43 44 if (!surf) { 45 return; 46 } 47 if (!scon->texture) { 48 return; 49 } 50 51 rect.x = x; 52 rect.y = y; 53 rect.w = w; 54 rect.h = h; 55 56 SDL_UpdateTexture(scon->texture, &rect, 57 surface_data(surf) + surface_data_offset, 58 surface_stride(surf)); 59 SDL_RenderClear(scon->real_renderer); 60 SDL_RenderCopy(scon->real_renderer, scon->texture, NULL, NULL); 61 SDL_RenderPresent(scon->real_renderer); 62 } 63 64 void sdl2_2d_switch(DisplayChangeListener *dcl, 65 DisplaySurface *new_surface) 66 { 67 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 68 DisplaySurface *old_surface = scon->surface; 69 int format = 0; 70 71 assert(!scon->opengl); 72 73 scon->surface = new_surface; 74 75 if (scon->texture) { 76 SDL_DestroyTexture(scon->texture); 77 scon->texture = NULL; 78 } 79 80 if (!new_surface) { 81 sdl2_window_destroy(scon); 82 return; 83 } 84 85 if (!scon->real_window) { 86 sdl2_window_create(scon); 87 } else if (old_surface && 88 ((surface_width(old_surface) != surface_width(new_surface)) || 89 (surface_height(old_surface) != surface_height(new_surface)))) { 90 sdl2_window_resize(scon); 91 } 92 93 SDL_RenderSetLogicalSize(scon->real_renderer, 94 surface_width(new_surface), 95 surface_height(new_surface)); 96 97 switch (surface_format(scon->surface)) { 98 case PIXMAN_x1r5g5b5: 99 format = SDL_PIXELFORMAT_ARGB1555; 100 break; 101 case PIXMAN_r5g6b5: 102 format = SDL_PIXELFORMAT_RGB565; 103 break; 104 case PIXMAN_x8r8g8b8: 105 format = SDL_PIXELFORMAT_ARGB8888; 106 break; 107 case PIXMAN_r8g8b8x8: 108 format = SDL_PIXELFORMAT_RGBA8888; 109 break; 110 case PIXMAN_b8g8r8x8: 111 format = SDL_PIXELFORMAT_BGRX8888; 112 break; 113 default: 114 g_assert_not_reached(); 115 } 116 scon->texture = SDL_CreateTexture(scon->real_renderer, format, 117 SDL_TEXTUREACCESS_STREAMING, 118 surface_width(new_surface), 119 surface_height(new_surface)); 120 sdl2_2d_redraw(scon); 121 } 122 123 void sdl2_2d_refresh(DisplayChangeListener *dcl) 124 { 125 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 126 127 assert(!scon->opengl); 128 graphic_hw_update(dcl->con); 129 sdl2_poll_events(scon); 130 } 131 132 void sdl2_2d_redraw(struct sdl2_console *scon) 133 { 134 assert(!scon->opengl); 135 136 if (!scon->surface) { 137 return; 138 } 139 sdl2_2d_update(&scon->dcl, 0, 0, 140 surface_width(scon->surface), 141 surface_height(scon->surface)); 142 } 143 144 bool sdl2_2d_check_format(DisplayChangeListener *dcl, 145 pixman_format_code_t format) 146 { 147 /* 148 * We let SDL convert for us a few more formats than, 149 * the native ones. Thes are the ones I have tested. 150 */ 151 return (format == PIXMAN_x8r8g8b8 || 152 format == PIXMAN_b8g8r8x8 || 153 format == PIXMAN_x1r5g5b5 || 154 format == PIXMAN_r5g6b5); 155 } 156