| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #include <zircon/process.h> |
| #include <zircon/syscalls.h> |
| #include <zircon/types.h> |
| |
| #include <gfx/gfx.h> |
| #include <lib/framebuffer/framebuffer.h> |
| |
| int main(int argc, char* argv[]) { |
| const char* err; |
| zx_status_t status = fb_bind(true, &err); |
| if (status != ZX_OK) { |
| printf("failed to open framebuffer: %d (%s)\n", status, err); |
| return -1; |
| } |
| uint32_t width; |
| uint32_t height; |
| uint32_t stride; |
| zx_pixel_format_t format; |
| |
| fb_get_config(&width, &height, &stride, &format); |
| |
| size_t size = stride * ZX_PIXEL_FORMAT_BYTES(format) * height; |
| uintptr_t fbo; |
| status = zx_vmar_map(zx_vmar_root_self(), |
| ZX_VM_PERM_READ | ZX_VM_PERM_WRITE, |
| 0, fb_get_single_buffer(), 0, size, &fbo); |
| if (status < 0) { |
| printf("failed to map fb (%d)\n", status); |
| return -1; |
| } |
| |
| gfx_surface* gfx = gfx_create_surface((void*)fbo, width, height, stride, |
| format, GFX_FLAG_FLUSH_CPU_CACHE); |
| if (!gfx) { |
| printf("failed to create gfx surface\n"); |
| return -1; |
| } |
| gfx_fillrect(gfx, 0, 0, gfx->width, gfx->height, 0xffffffff); |
| gfx_flush(gfx); |
| |
| int d = gfx->height / 5; |
| int i = 10; |
| while (i--) { |
| zx_nanosleep(zx_deadline_after(ZX_SEC(1))); |
| gfx_fillrect(gfx, (gfx->width - d) / 2, (gfx->height - d) / 2, d, d, i % 2 ? 0xff55ff55 : 0xffaa00aa); |
| gfx_flush(gfx); |
| } |
| |
| gfx_surface_destroy(gfx); |
| fb_release(); |
| } |