sdl2-2d.c (5324B)
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 = scon->surface; 36 SDL_Rect rect; 37 size_t surface_data_offset; 38 assert(!scon->opengl); 39 40 if (!scon->texture) { 41 return; 42 } 43 44 surface_data_offset = surface_bytes_per_pixel(surf) * x + 45 surface_stride(surf) * y; 46 rect.x = x; 47 rect.y = y; 48 rect.w = w; 49 rect.h = h; 50 51 SDL_UpdateTexture(scon->texture, &rect, 52 surface_data(surf) + surface_data_offset, 53 surface_stride(surf)); 54 SDL_RenderClear(scon->real_renderer); 55 SDL_RenderCopy(scon->real_renderer, scon->texture, NULL, NULL); 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 (is_placeholder(new_surface) && qemu_console_get_index(dcl->con)) { 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_a8r8g8b8: 100 case PIXMAN_x8r8g8b8: 101 format = SDL_PIXELFORMAT_ARGB8888; 102 break; 103 case PIXMAN_a8b8g8r8: 104 case PIXMAN_x8b8g8r8: 105 format = SDL_PIXELFORMAT_ABGR8888; 106 break; 107 case PIXMAN_r8g8b8a8: 108 case PIXMAN_r8g8b8x8: 109 format = SDL_PIXELFORMAT_RGBA8888; 110 break; 111 case PIXMAN_b8g8r8x8: 112 format = SDL_PIXELFORMAT_BGRX8888; 113 break; 114 case PIXMAN_b8g8r8a8: 115 format = SDL_PIXELFORMAT_BGRA8888; 116 break; 117 default: 118 g_assert_not_reached(); 119 } 120 scon->texture = SDL_CreateTexture(scon->real_renderer, format, 121 SDL_TEXTUREACCESS_STREAMING, 122 surface_width(new_surface), 123 surface_height(new_surface)); 124 sdl2_2d_redraw(scon); 125 } 126 127 void sdl2_2d_refresh(DisplayChangeListener *dcl) 128 { 129 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 130 131 assert(!scon->opengl); 132 graphic_hw_update(dcl->con); 133 sdl2_poll_events(scon); 134 } 135 136 void sdl2_2d_redraw(struct sdl2_console *scon) 137 { 138 assert(!scon->opengl); 139 140 if (!scon->surface) { 141 return; 142 } 143 sdl2_2d_update(&scon->dcl, 0, 0, 144 surface_width(scon->surface), 145 surface_height(scon->surface)); 146 } 147 148 bool sdl2_2d_check_format(DisplayChangeListener *dcl, 149 pixman_format_code_t format) 150 { 151 /* 152 * We let SDL convert for us a few more formats than, 153 * the native ones. Thes are the ones I have tested. 154 */ 155 return (format == PIXMAN_x8r8g8b8 || 156 format == PIXMAN_a8r8g8b8 || 157 format == PIXMAN_a8b8g8r8 || 158 format == PIXMAN_x8b8g8r8 || 159 format == PIXMAN_b8g8r8x8 || 160 format == PIXMAN_b8g8r8a8 || 161 format == PIXMAN_r8g8b8x8 || 162 format == PIXMAN_r8g8b8a8 || 163 format == PIXMAN_x1r5g5b5 || 164 format == PIXMAN_r5g6b5); 165 }