v2: - adapted to protocol changes - added TODO comments - minor clean-up - change y-invert from per-plane boolean to per-buffer flag v3: - fix a typo: 1 -> i (noticed by Carlos Olmedo Escobar) Signed-off-by: George Kiagiadakis <george.kiagiadakis@collabora.com> Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk> Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com> Acked-by: Daniel Stone <daniels@collabora.com>dev
parent
bf8cc6f5a1
commit
53868985ff
@ -0,0 +1,591 @@ |
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/*
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* Copyright © 2011 Benjamin Franzke |
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* Copyright © 2010 Intel Corporation |
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* Copyright © 2014 Collabora Ltd. |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and its |
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* documentation for any purpose is hereby granted without fee, provided that |
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* the above copyright notice appear in all copies and that both that copyright |
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* notice and this permission notice appear in supporting documentation, and |
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* that the name of the copyright holders not be used in advertising or |
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* publicity pertaining to distribution of the software without specific, |
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* written prior permission. The copyright holders make no representations |
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* about the suitability of this software for any purpose. It is provided "as |
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* is" without express or implied warranty. |
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* |
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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#include <config.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <stdbool.h> |
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#include <assert.h> |
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#include <unistd.h> |
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#include <sys/mman.h> |
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#include <signal.h> |
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#include <fcntl.h> |
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#include <xf86drm.h> |
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#include <libdrm/i915_drm.h> |
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#include <libdrm/intel_bufmgr.h> |
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#include <libdrm/drm_fourcc.h> |
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#include <wayland-client.h> |
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#include "xdg-shell-client-protocol.h" |
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#include "fullscreen-shell-client-protocol.h" |
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#include "linux-dmabuf-client-protocol.h" |
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|
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struct display { |
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struct wl_display *display; |
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struct wl_registry *registry; |
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struct wl_compositor *compositor; |
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struct xdg_shell *shell; |
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struct _wl_fullscreen_shell *fshell; |
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struct zlinux_dmabuf *dmabuf; |
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int xrgb8888_format_found; |
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}; |
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struct buffer { |
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struct wl_buffer *buffer; |
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int busy; |
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int drm_fd; |
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drm_intel_bufmgr *bufmgr; |
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drm_intel_bo *bo; |
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uint32_t gem_handle; |
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int dmabuf_fd; |
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uint8_t *mmap; |
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int width; |
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int height; |
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int bpp; |
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unsigned long stride; |
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}; |
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struct window { |
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struct display *display; |
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int width, height; |
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struct wl_surface *surface; |
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struct xdg_surface *xdg_surface; |
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struct buffer buffers[2]; |
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struct buffer *prev_buffer; |
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struct wl_callback *callback; |
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}; |
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static int running = 1; |
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static void |
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buffer_release(void *data, struct wl_buffer *buffer) |
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{ |
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struct buffer *mybuf = data; |
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mybuf->busy = 0; |
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} |
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static const struct wl_buffer_listener buffer_listener = { |
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buffer_release |
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}; |
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static int |
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drm_connect(struct buffer *my_buf) |
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{ |
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/* This won't work with card0 as we need to be authenticated; instead,
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* boot with drm.rnodes=1 and use that. */ |
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my_buf->drm_fd = open("/dev/dri/renderD128", O_RDWR); |
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if (my_buf->drm_fd < 0) |
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return 0; |
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my_buf->bufmgr = drm_intel_bufmgr_gem_init(my_buf->drm_fd, 32); |
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if (!my_buf->bufmgr) |
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return 0; |
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return 1; |
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} |
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static void |
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drm_shutdown(struct buffer *my_buf) |
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{ |
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drm_intel_bufmgr_destroy(my_buf->bufmgr); |
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close(my_buf->drm_fd); |
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} |
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static int |
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alloc_bo(struct buffer *my_buf) |
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{ |
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/* XXX: try different tiling modes for testing FB modifiers. */ |
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uint32_t tiling = I915_TILING_NONE; |
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assert(my_buf->bufmgr); |
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my_buf->bo = drm_intel_bo_alloc_tiled(my_buf->bufmgr, "test", |
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my_buf->width, my_buf->height, |
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(my_buf->bpp / 8), &tiling, |
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&my_buf->stride, 0); |
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printf("buffer allocated w %d, h %d, stride %lu, size %lu\n", |
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my_buf->width, my_buf->height, my_buf->stride, my_buf->bo->size); |
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if (!my_buf->bo) |
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return 0; |
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if (tiling != I915_TILING_NONE) |
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return 0; |
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return 1; |
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} |
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static void |
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free_bo(struct buffer *my_buf) |
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{ |
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drm_intel_bo_unreference(my_buf->bo); |
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} |
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static int |
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map_bo(struct buffer *my_buf) |
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{ |
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if (drm_intel_gem_bo_map_gtt(my_buf->bo) != 0) |
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return 0; |
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my_buf->mmap = my_buf->bo->virtual; |
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return 1; |
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} |
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static void |
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fill_content(struct buffer *my_buf) |
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{ |
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int x = 0, y = 0; |
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uint32_t *pix; |
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assert(my_buf->mmap); |
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for (y = 0; y < my_buf->height; y++) { |
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pix = (uint32_t *)(my_buf->mmap + y * my_buf->stride); |
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for (x = 0; x < my_buf->width; x++) { |
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*pix++ = (0xff << 24) | ((x % 256) << 16) | |
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((y % 256) << 8) | 0xf0; |
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} |
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} |
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} |
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static void |
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unmap_bo(struct buffer *my_buf) |
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{ |
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drm_intel_gem_bo_unmap_gtt(my_buf->bo); |
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} |
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static void |
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create_succeeded(void *data, |
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struct zlinux_buffer_params *params, |
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struct wl_buffer *new_buffer) |
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{ |
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struct buffer *buffer = data; |
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buffer->buffer = new_buffer; |
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wl_buffer_add_listener(buffer->buffer, &buffer_listener, buffer); |
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zlinux_buffer_params_destroy(params); |
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} |
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static void |
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create_failed(void *data, struct zlinux_buffer_params *params) |
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{ |
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struct buffer *buffer = data; |
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buffer->buffer = NULL; |
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zlinux_buffer_params_destroy(params); |
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fprintf(stderr, "Error: zlinux_buffer_params.create failed.\n"); |
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} |
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static const struct zlinux_buffer_params_listener params_listener = { |
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create_succeeded, |
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create_failed |
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}; |
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static int |
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create_dmabuf_buffer(struct display *display, struct buffer *buffer, |
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int width, int height) |
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{ |
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struct zlinux_buffer_params *params; |
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uint64_t modifier; |
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uint32_t flags; |
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if (!drm_connect(buffer)) { |
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fprintf(stderr, "drm_connect failed\n"); |
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goto error; |
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} |
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buffer->width = width; |
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buffer->height = height; |
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buffer->bpp = 32; /* hardcoded XRGB8888 format */ |
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if (!alloc_bo(buffer)) { |
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fprintf(stderr, "alloc_bo failed\n"); |
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goto error1; |
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} |
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if (!map_bo(buffer)) { |
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fprintf(stderr, "map_bo failed\n"); |
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goto error2; |
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} |
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fill_content(buffer); |
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unmap_bo(buffer); |
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if (drm_intel_bo_gem_export_to_prime(buffer->bo, &buffer->dmabuf_fd) != 0) { |
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fprintf(stderr, "drm_intel_bo_gem_export_to_prime failed\n"); |
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goto error2; |
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} |
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if (buffer->dmabuf_fd < 0) { |
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fprintf(stderr, "error: dmabuf_fd < 0\n"); |
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goto error2; |
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} |
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/* We now have a dmabuf! It should contain 2x2 tiles (i.e. each tile
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* is 256x256) of misc colours, and be mappable, either as ARGB8888, or |
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* XRGB8888. */ |
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modifier = 0; |
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flags = 0; |
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params = zlinux_dmabuf_create_params(display->dmabuf); |
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zlinux_buffer_params_add(params, |
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buffer->dmabuf_fd, |
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0, /* plane_idx */ |
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0, /* offset */ |
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buffer->stride, |
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modifier >> 32, |
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modifier & 0xffffffff); |
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zlinux_buffer_params_add_listener(params, ¶ms_listener, buffer); |
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zlinux_buffer_params_create(params, |
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buffer->width, |
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buffer->height, |
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DRM_FORMAT_XRGB8888, |
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flags); |
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/* params is destroyed by the event handlers */ |
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wl_display_roundtrip(display->display); |
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if (buffer->buffer == NULL) { |
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goto error2; |
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} |
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return 0; |
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error2: |
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free_bo(buffer); |
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error1: |
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drm_shutdown(buffer); |
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error: |
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return -1; |
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} |
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static void |
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handle_configure(void *data, struct xdg_surface *surface, |
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int32_t width, int32_t height, |
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struct wl_array *states, uint32_t serial) |
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{ |
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} |
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static void |
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handle_delete(void *data, struct xdg_surface *xdg_surface) |
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{ |
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running = 0; |
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} |
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static const struct xdg_surface_listener xdg_surface_listener = { |
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handle_configure, |
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handle_delete, |
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}; |
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static struct window * |
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create_window(struct display *display, int width, int height) |
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{ |
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struct window *window; |
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window = calloc(1, sizeof *window); |
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if (!window) |
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return NULL; |
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window->callback = NULL; |
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window->display = display; |
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window->width = width; |
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window->height = height; |
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window->surface = wl_compositor_create_surface(display->compositor); |
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if (display->shell) { |
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window->xdg_surface = |
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xdg_shell_get_xdg_surface(display->shell, |
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window->surface); |
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assert(window->xdg_surface); |
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xdg_surface_add_listener(window->xdg_surface, |
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&xdg_surface_listener, window); |
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xdg_surface_set_title(window->xdg_surface, "simple-dmabuf"); |
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} else if (display->fshell) { |
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_wl_fullscreen_shell_present_surface(display->fshell, |
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window->surface, |
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_WL_FULLSCREEN_SHELL_PRESENT_METHOD_DEFAULT, |
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NULL); |
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} else { |
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assert(0); |
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} |
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return window; |
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} |
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static void |
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destroy_window(struct window *window) |
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{ |
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int i; |
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if (window->callback) |
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wl_callback_destroy(window->callback); |
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for (i = 0; i < 2; i++) { |
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if (!window->buffers[i].buffer) |
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continue; |
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wl_buffer_destroy(window->buffers[i].buffer); |
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free_bo(&window->buffers[i]); |
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close(window->buffers[i].dmabuf_fd); |
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drm_shutdown(&window->buffers[i]); |
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} |
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if (window->xdg_surface) |
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xdg_surface_destroy(window->xdg_surface); |
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wl_surface_destroy(window->surface); |
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free(window); |
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} |
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static struct buffer * |
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window_next_buffer(struct window *window) |
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{ |
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struct buffer *buffer; |
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int ret = 0; |
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if (!window->buffers[0].busy) |
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buffer = &window->buffers[0]; |
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else if (!window->buffers[1].busy) |
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buffer = &window->buffers[1]; |
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else |
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return NULL; |
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if (!buffer->buffer) { |
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ret = create_dmabuf_buffer(window->display, buffer, |
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window->width, window->height); |
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if (ret < 0) |
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return NULL; |
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} |
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return buffer; |
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} |
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static const struct wl_callback_listener frame_listener; |
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static void |
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redraw(void *data, struct wl_callback *callback, uint32_t time) |
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{ |
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struct window *window = data; |
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struct buffer *buffer; |
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buffer = window_next_buffer(window); |
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if (!buffer) { |
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fprintf(stderr, |
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!callback ? "Failed to create the first buffer.\n" : |
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"Both buffers busy at redraw(). Server bug?\n"); |
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abort(); |
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} |
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/* XXX: would be nice to draw something that changes here... */ |
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wl_surface_attach(window->surface, buffer->buffer, 0, 0); |
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wl_surface_damage(window->surface, 0, 0, window->width, window->height); |
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if (callback) |
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wl_callback_destroy(callback); |
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window->callback = wl_surface_frame(window->surface); |
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wl_callback_add_listener(window->callback, &frame_listener, window); |
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wl_surface_commit(window->surface); |
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buffer->busy = 1; |
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} |
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static const struct wl_callback_listener frame_listener = { |
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redraw |
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}; |
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static void |
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dmabuf_format(void *data, struct zlinux_dmabuf *zlinux_dmabuf, uint32_t format) |
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{ |
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struct display *d = data; |
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if (format == DRM_FORMAT_XRGB8888) |
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d->xrgb8888_format_found = 1; |
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} |
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static const struct zlinux_dmabuf_listener dmabuf_listener = { |
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dmabuf_format |
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}; |
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static void |
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xdg_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial) |
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{ |
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xdg_shell_pong(shell, serial); |
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} |
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|
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static const struct xdg_shell_listener xdg_shell_listener = { |
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xdg_shell_ping, |
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}; |
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|
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#define XDG_VERSION 5 /* The version of xdg-shell that we implement */ |
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#ifdef static_assert |
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static_assert(XDG_VERSION == XDG_SHELL_VERSION_CURRENT, |
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"Interface version doesn't match implementation version"); |
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#endif |
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|
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static void |
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registry_handle_global(void *data, struct wl_registry *registry, |
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uint32_t id, const char *interface, uint32_t version) |
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{ |
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struct display *d = data; |
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|
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if (strcmp(interface, "wl_compositor") == 0) { |
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d->compositor = |
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wl_registry_bind(registry, |
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id, &wl_compositor_interface, 1); |
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} else if (strcmp(interface, "xdg_shell") == 0) { |
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d->shell = wl_registry_bind(registry, |
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id, &xdg_shell_interface, 1); |
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xdg_shell_use_unstable_version(d->shell, XDG_VERSION); |
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xdg_shell_add_listener(d->shell, &xdg_shell_listener, d); |
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} else if (strcmp(interface, "_wl_fullscreen_shell") == 0) { |
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d->fshell = wl_registry_bind(registry, |
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id, &_wl_fullscreen_shell_interface, 1); |
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} else if (strcmp(interface, "zlinux_dmabuf") == 0) { |
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d->dmabuf = wl_registry_bind(registry, |
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id, &zlinux_dmabuf_interface, 1); |
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zlinux_dmabuf_add_listener(d->dmabuf, &dmabuf_listener, d); |
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} |
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} |
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|
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static void |
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registry_handle_global_remove(void *data, struct wl_registry *registry, |
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uint32_t name) |
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{ |
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} |
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|
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static const struct wl_registry_listener registry_listener = { |
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registry_handle_global, |
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registry_handle_global_remove |
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}; |
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|
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static struct display * |
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create_display(void) |
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{ |
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struct display *display; |
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|
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display = malloc(sizeof *display); |
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if (display == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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display->display = wl_display_connect(NULL); |
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assert(display->display); |
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|
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/* XXX: fake, because the compositor does not yet advertise anything */ |
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display->xrgb8888_format_found = 1; |
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|
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display->registry = wl_display_get_registry(display->display); |
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wl_registry_add_listener(display->registry, |
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®istry_listener, display); |
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wl_display_roundtrip(display->display); |
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if (display->dmabuf == NULL) { |
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fprintf(stderr, "No zlinux_dmabuf global\n"); |
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exit(1); |
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} |
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|
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wl_display_roundtrip(display->display); |
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|
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if (!display->xrgb8888_format_found) { |
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fprintf(stderr, "DRM_FORMAT_XRGB8888 not available\n"); |
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exit(1); |
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} |
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|
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return display; |
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} |
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|
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static void |
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destroy_display(struct display *display) |
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{ |
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if (display->dmabuf) |
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zlinux_dmabuf_destroy(display->dmabuf); |
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|
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if (display->shell) |
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xdg_shell_destroy(display->shell); |
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|
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if (display->fshell) |
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_wl_fullscreen_shell_release(display->fshell); |
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|
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if (display->compositor) |
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wl_compositor_destroy(display->compositor); |
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|
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wl_registry_destroy(display->registry); |
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wl_display_flush(display->display); |
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wl_display_disconnect(display->display); |
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free(display); |
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} |
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|
||||
static void |
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signal_int(int signum) |
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{ |
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running = 0; |
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} |
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|
||||
int |
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main(int argc, char **argv) |
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{ |
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struct sigaction sigint; |
||||
struct display *display; |
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struct window *window; |
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int ret = 0; |
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|
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display = create_display(); |
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window = create_window(display, 250, 250); |
||||
if (!window) |
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return 1; |
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|
||||
sigint.sa_handler = signal_int; |
||||
sigemptyset(&sigint.sa_mask); |
||||
sigint.sa_flags = SA_RESETHAND; |
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sigaction(SIGINT, &sigint, NULL); |
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|
||||
/* Initialise damage to full surface, so the padding gets painted */ |
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wl_surface_damage(window->surface, 0, 0, |
||||
window->width, window->height); |
||||
|
||||
redraw(window, NULL, 0); |
||||
|
||||
while (running && ret != -1) |
||||
ret = wl_display_dispatch(display->display); |
||||
|
||||
fprintf(stderr, "simple-dmabuf exiting\n"); |
||||
destroy_window(window); |
||||
destroy_display(display); |
||||
|
||||
return 0; |
||||
} |
Loading…
Reference in new issue