| 1 | /* |
| 2 | * QEMU graphical console surface helper |
| 3 | * |
| 4 | * Copyright (c) 2004 Fabrice Bellard |
| 5 | * |
| 6 | * SPDX-License-Identifier: MIT |
| 7 | */ |
| 8 | #include "qemu/osdep.h" |
| 9 | #include "ui/console.h" |
| 10 | #include "ui/vgafont.h" |
| 11 | #include "trace.h" |
| 12 | |
| 13 | void qemu_displaysurface_set_share_handle(DisplaySurface *surface, |
| 14 | qemu_pixman_shareable handle, |
| 15 | uint32_t offset) |
| 16 | { |
| 17 | assert(surface->share_handle == SHAREABLE_NONE); |
| 18 | |
| 19 | surface->share_handle = handle; |
| 20 | surface->share_handle_offset = offset; |
| 21 | |
| 22 | } |
| 23 | |
| 24 | DisplaySurface *qemu_create_displaysurface(int width, int height) |
| 25 | { |
| 26 | trace_displaysurface_create(width, height); |
| 27 | |
| 28 | return qemu_create_displaysurface_from( |
| 29 | width, height, |
| 30 | PIXMAN_x8r8g8b8, |
| 31 | width * 4, NULL |
| 32 | ); |
| 33 | } |
| 34 | |
| 35 | DisplaySurface *qemu_create_displaysurface_from(int width, int height, |
| 36 | pixman_format_code_t format, |
| 37 | int linesize, uint8_t *data) |
| 38 | { |
| 39 | DisplaySurface *surface = g_new0(DisplaySurface, 1); |
| 40 | |
| 41 | trace_displaysurface_create_from(surface, width, height, format); |
| 42 | surface->share_handle = SHAREABLE_NONE; |
| 43 | |
| 44 | if (data) { |
| 45 | surface->image = pixman_image_create_bits(format, |
| 46 | width, height, |
| 47 | (void *)data, linesize); |
| 48 | } else { |
| 49 | qemu_pixman_image_new_shareable(&surface->image, |
| 50 | &surface->share_handle, |
| 51 | "displaysurface", |
| 52 | format, |
| 53 | width, |
| 54 | height, |
| 55 | linesize, |
| 56 | &error_abort); |
| 57 | surface->flags = QEMU_ALLOCATED_FLAG; |
| 58 | } |
| 59 | |
| 60 | assert(surface->image != NULL); |
| 61 | return surface; |
| 62 | } |
| 63 | |
| 64 | DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image) |
| 65 | { |
| 66 | DisplaySurface *surface = g_new0(DisplaySurface, 1); |
| 67 | |
| 68 | trace_displaysurface_create_pixman(surface); |
| 69 | surface->share_handle = SHAREABLE_NONE; |
| 70 | surface->image = pixman_image_ref(image); |
| 71 | |
| 72 | return surface; |
| 73 | } |
| 74 | |
| 75 | DisplaySurface *qemu_create_placeholder_surface(int w, int h, |
| 76 | const char *msg) |
| 77 | { |
| 78 | DisplaySurface *surface = qemu_create_displaysurface(w, h); |
| 79 | #ifdef CONFIG_PIXMAN |
| 80 | pixman_color_t bg = QEMU_PIXMAN_COLOR_BLACK; |
| 81 | pixman_color_t fg = QEMU_PIXMAN_COLOR_GRAY; |
| 82 | pixman_image_t *glyph; |
| 83 | int len, x, y, i; |
| 84 | |
| 85 | len = strlen(msg); |
| 86 | x = (w / FONT_WIDTH - len) / 2; |
| 87 | y = (h / FONT_HEIGHT - 1) / 2; |
| 88 | for (i = 0; i < len; i++) { |
| 89 | glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]); |
| 90 | qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg, |
| 91 | x + i, y, FONT_WIDTH, FONT_HEIGHT); |
| 92 | qemu_pixman_image_unref(glyph); |
| 93 | } |
| 94 | #endif |
| 95 | surface->flags |= QEMU_PLACEHOLDER_FLAG; |
| 96 | return surface; |
| 97 | } |
| 98 | |
| 99 | void qemu_free_displaysurface(DisplaySurface *surface) |
| 100 | { |
| 101 | if (surface == NULL) { |
| 102 | return; |
| 103 | } |
| 104 | trace_displaysurface_free(surface); |
| 105 | qemu_pixman_image_unref(surface->image); |
| 106 | g_free(surface); |
| 107 | } |