[PATCH 7/7] clients: add simple-dmabuf client
Louis-Francis Ratté-Boulianne
lfrb at collabora.com
Fri Dec 12 13:51:08 PST 2014
From: George Kiagiadakis <george.kiagiadakis at collabora.com>
Signed-off-by: George Kiagiadakis <george.kiagiadakis at collabora.com>
Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb at collabora.com>
---
.gitignore | 1 +
Makefile.am | 15 ++
clients/simple-dmabuf.c | 578 ++++++++++++++++++++++++++++++++++++++++++++++++
configure.ac | 9 +
4 files changed, 603 insertions(+)
create mode 100644 clients/simple-dmabuf.c
diff --git a/.gitignore b/.gitignore
index 2aaeac9..9dbfb9f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,6 +48,7 @@ weston-nested-client
weston-presentation-shm
weston-resizor
weston-scaler
+weston-simple-dmabuf
weston-simple-egl
weston-simple-shm
weston-simple-touch
diff --git a/Makefile.am b/Makefile.am
index 16f5d13..06f6ec6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -453,6 +453,21 @@ weston_simple_egl_CFLAGS = $(AM_CFLAGS) $(SIMPLE_EGL_CLIENT_CFLAGS)
weston_simple_egl_LDADD = $(SIMPLE_EGL_CLIENT_LIBS) -lm
endif
+if BUILD_SIMPLE_INTEL_DMABUF_CLIENT
+demo_clients += weston-simple-dmabuf
+weston_simple_dmabuf_SOURCES = clients/simple-dmabuf.c
+nodist_weston_simple_dmabuf_SOURCES = \
+ protocol/xdg-shell-protocol.c \
+ protocol/xdg-shell-client-protocol.h \
+ protocol/fullscreen-shell-protocol.c \
+ protocol/fullscreen-shell-client-protocol.h \
+ protocol/linux-dmabuf-protocol.c \
+ protocol/linux-dmabuf-client-protocol.h
+weston_simple_dmabuf_CFLAGS = $(AM_CFLAGS) $(SIMPLE_DMABUF_CLIENT_CFLAGS)
+weston_simple_dmabuf_LDADD = $(SIMPLE_DMABUF_CLIENT_LIBS) libshared.la
+BUILT_SOURCES += protocol/linux-dmabuf-client-protocol.h
+endif
+
noinst_LTLIBRARIES += libtoytoolkit.la
libtoytoolkit_la_SOURCES = \
diff --git a/clients/simple-dmabuf.c b/clients/simple-dmabuf.c
new file mode 100644
index 0000000..4635d47
--- /dev/null
+++ b/clients/simple-dmabuf.c
@@ -0,0 +1,578 @@
+/*
+ * Copyright © 2011 Benjamin Franzke
+ * Copyright © 2010 Intel Corporation
+ * Copyright © 2014 Collabora Ltd.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <signal.h>
+#include <fcntl.h>
+
+#include <xf86drm.h>
+#include <libdrm/i915_drm.h>
+#include <libdrm/intel_bufmgr.h>
+
+#include <wayland-client.h>
+#include "xdg-shell-client-protocol.h"
+#include "fullscreen-shell-client-protocol.h"
+#include "linux-dmabuf-client-protocol.h"
+
+struct display {
+ struct wl_display *display;
+ struct wl_registry *registry;
+ struct wl_compositor *compositor;
+ struct xdg_shell *shell;
+ struct _wl_fullscreen_shell *fshell;
+ struct zlinux_dmabuf *dmabuf;
+ int xrgb8888_format_found;
+};
+
+struct buffer {
+ struct wl_buffer *buffer;
+ struct zlinux_dmabuf_create_feedback *feedback;
+ int busy;
+
+ int drm_fd;
+
+ drm_intel_bufmgr *bufmgr;
+ drm_intel_bo *bo;
+
+ uint32_t gem_handle;
+ int dmabuf_fd;
+ uint8_t *mmap;
+
+ int width;
+ int height;
+ int bpp;
+ unsigned long stride;
+};
+
+struct window {
+ struct display *display;
+ int width, height;
+ struct wl_surface *surface;
+ struct xdg_surface *xdg_surface;
+ struct buffer buffers[2];
+ struct buffer *prev_buffer;
+ struct wl_callback *callback;
+};
+
+static int running = 1;
+
+static void
+buffer_release(void *data, struct wl_buffer *buffer)
+{
+ struct buffer *mybuf = data;
+
+ mybuf->busy = 0;
+}
+
+static const struct wl_buffer_listener buffer_listener = {
+ buffer_release
+};
+
+static int
+drm_connect(struct buffer *my_buf)
+{
+ /* This won't work with card0 as we need to be authenticated; instead,
+ * boot with drm.rnodes=1 and use that. */
+ my_buf->drm_fd = open("/dev/dri/renderD128", O_RDWR);
+ if (my_buf->drm_fd < 0)
+ return 0;
+
+ my_buf->bufmgr = drm_intel_bufmgr_gem_init(my_buf->drm_fd, 32);
+ if (!my_buf->bufmgr)
+ return 0;
+
+ return 1;
+}
+
+static void
+drm_shutdown(struct buffer *my_buf)
+{
+ drm_intel_bufmgr_destroy(my_buf->bufmgr);
+ close(my_buf->drm_fd);
+}
+
+static int
+alloc_bo(struct buffer *my_buf)
+{
+ uint32_t tiling = I915_TILING_NONE;
+
+ assert(my_buf->bufmgr);
+
+ my_buf->bo = drm_intel_bo_alloc_tiled(my_buf->bufmgr, "test",
+ my_buf->width, my_buf->height,
+ (my_buf->bpp / 8), &tiling,
+ &my_buf->stride, 0);
+
+ printf("buffer allocated w %d, h %d, stride %lu, size %lu\n",
+ my_buf->width, my_buf->height, my_buf->stride, my_buf->bo->size);
+
+ if (!my_buf->bo)
+ return 0;
+
+ if (tiling != I915_TILING_NONE)
+ return 0;
+
+ return 1;
+}
+
+static void
+free_bo(struct buffer *my_buf)
+{
+ drm_intel_bo_unreference(my_buf->bo);
+}
+
+static int
+map_bo(struct buffer *my_buf)
+{
+ if (drm_intel_gem_bo_map_gtt(my_buf->bo) != 0)
+ return 0;
+
+ my_buf->mmap = my_buf->bo->virtual;
+
+ return 1;
+}
+
+static void
+fill_content(struct buffer *my_buf)
+{
+ int x = 0, y = 0;
+ uint32_t *pix;
+
+ assert(my_buf->mmap);
+
+ for (y = 0; y < my_buf->height; y++) {
+ pix = (uint32_t *)(my_buf->mmap + y * my_buf->stride);
+ for (x = 0; x < my_buf->width; x++) {
+ *pix++ = (0xff << 24) | ((x % 256) << 16) |
+ ((y % 256) << 8) | 0xf0;
+ }
+ }
+}
+
+static void
+unmap_bo(struct buffer *my_buf)
+{
+ drm_intel_gem_bo_unmap_gtt(my_buf->bo);
+}
+
+static void
+create_buffer_succeeded(void *data,
+ struct zlinux_dmabuf_create_feedback *feedback,
+ struct wl_buffer *new_buffer)
+{
+ struct buffer *buffer = data;
+
+ buffer->buffer = new_buffer;
+ wl_buffer_add_listener(buffer->buffer, &buffer_listener, buffer);
+
+ zlinux_dmabuf_create_feedback_destroy(buffer->feedback);
+ buffer->feedback = NULL;
+}
+
+static void
+create_buffer_failed(void *data,
+ struct zlinux_dmabuf_create_feedback *feedback)
+{
+ struct buffer *buffer = data;
+
+ buffer->buffer = NULL;
+
+ zlinux_dmabuf_create_feedback_destroy(buffer->feedback);
+ buffer->feedback = NULL;
+}
+
+static const struct zlinux_dmabuf_create_feedback_listener feedback_listener = {
+ create_buffer_succeeded,
+ create_buffer_failed
+};
+
+static int
+create_dmabuf_buffer(struct display *display, struct buffer *buffer,
+ int width, int height)
+{
+ struct dmabuf_batch *batch;
+
+ if (!drm_connect(buffer)) {
+ fprintf(stderr, "drm_connect failed\n");
+ goto error;
+ }
+
+ buffer->width = width;
+ buffer->height = height;
+ buffer->bpp = 32; /* hardcoded XRGB8888 format */
+
+ if (!alloc_bo(buffer)) {
+ fprintf(stderr, "alloc_bo failed\n");
+ goto error1;
+ }
+
+ if (!map_bo(buffer)) {
+ fprintf(stderr, "map_bo failed\n");
+ goto error2;
+ }
+ fill_content(buffer);
+ unmap_bo(buffer);
+
+ if (drm_intel_bo_gem_export_to_prime(buffer->bo, &buffer->dmabuf_fd) != 0) {
+ fprintf(stderr, "drm_intel_bo_gem_export_to_prime failed\n");
+ goto error2;
+ }
+ if (buffer->dmabuf_fd < 0) {
+ fprintf(stderr, "error: dmabuf_fd < 0\n");
+ goto error2;
+ }
+
+ /* We now have a dmabuf! It should contian 2x2 tiles (i.e. each tile
+ * is 256x256) of misc colours, and be mappable, either as ARGB8888, or
+ * XRGB8888. */
+
+ batch = zlinux_dmabuf_create_batch(display->dmabuf);
+ dmabuf_batch_add(batch, buffer->dmabuf_fd, 0, buffer->stride, 0, 0, 0, 0);
+ buffer->feedback = zlinux_dmabuf_create_buffer(display->dmabuf, batch,
+ buffer->width, buffer->height,
+ ZLINUX_DMABUF_FORMAT_XRGB8888);
+ dmabuf_batch_destroy(batch);
+
+ zlinux_dmabuf_create_feedback_add_listener(buffer->feedback,
+ &feedback_listener, buffer);
+ wl_display_roundtrip(display->display);
+ if (buffer->buffer == NULL) {
+ goto error2;
+ }
+
+ return 1;
+
+error2:
+ free_bo(buffer);
+error1:
+ drm_shutdown(buffer);
+error:
+ return 0;
+}
+
+static void
+handle_configure(void *data, struct xdg_surface *surface,
+ int32_t width, int32_t height,
+ struct wl_array *states, uint32_t serial)
+{
+}
+
+static void
+handle_delete(void *data, struct xdg_surface *xdg_surface)
+{
+ running = 0;
+}
+
+static const struct xdg_surface_listener xdg_surface_listener = {
+ handle_configure,
+ handle_delete,
+};
+
+static struct window *
+create_window(struct display *display, int width, int height)
+{
+ struct window *window;
+
+ window = calloc(1, sizeof *window);
+ if (!window)
+ return NULL;
+
+ window->callback = NULL;
+ window->display = display;
+ window->width = width;
+ window->height = height;
+ window->surface = wl_compositor_create_surface(display->compositor);
+
+ if (display->shell) {
+ window->xdg_surface =
+ xdg_shell_get_xdg_surface(display->shell,
+ window->surface);
+
+ assert(window->xdg_surface);
+
+ xdg_surface_add_listener(window->xdg_surface,
+ &xdg_surface_listener, window);
+
+ xdg_surface_set_title(window->xdg_surface, "simple-dmabuf");
+ } else if (display->fshell) {
+ _wl_fullscreen_shell_present_surface(display->fshell,
+ window->surface,
+ _WL_FULLSCREEN_SHELL_PRESENT_METHOD_DEFAULT,
+ NULL);
+ } else {
+ assert(0);
+ }
+
+ return window;
+}
+
+static void
+destroy_window(struct window *window)
+{
+ if (window->callback)
+ wl_callback_destroy(window->callback);
+
+ if (window->buffers[0].buffer) {
+ wl_buffer_destroy(window->buffers[0].buffer);
+ free_bo(&window->buffers[0]);
+ close(window->buffers[0].dmabuf_fd);
+ drm_shutdown(&window->buffers[0]);
+ }
+ if (window->buffers[1].buffer) {
+ wl_buffer_destroy(window->buffers[1].buffer);
+ free_bo(&window->buffers[1]);
+ close(window->buffers[1].dmabuf_fd);
+ drm_shutdown(&window->buffers[1]);
+ }
+
+ if (window->xdg_surface)
+ xdg_surface_destroy(window->xdg_surface);
+ wl_surface_destroy(window->surface);
+ free(window);
+}
+
+static struct buffer *
+window_next_buffer(struct window *window)
+{
+ struct buffer *buffer;
+ int ret = 0;
+
+ if (!window->buffers[0].busy)
+ buffer = &window->buffers[0];
+ else if (!window->buffers[1].busy)
+ buffer = &window->buffers[1];
+ else
+ return NULL;
+
+ if (!buffer->buffer) {
+ ret = create_dmabuf_buffer(window->display, buffer,
+ window->width, window->height);
+
+ if (ret < 0)
+ return NULL;
+ }
+
+ return buffer;
+}
+
+static const struct wl_callback_listener frame_listener;
+
+static void
+redraw(void *data, struct wl_callback *callback, uint32_t time)
+{
+ struct window *window = data;
+ struct buffer *buffer;
+
+ buffer = window_next_buffer(window);
+ if (!buffer) {
+ fprintf(stderr,
+ !callback ? "Failed to create the first buffer.\n" :
+ "Both buffers busy at redraw(). Server bug?\n");
+ abort();
+ }
+
+ wl_surface_attach(window->surface, buffer->buffer, 0, 0);
+ wl_surface_damage(window->surface, 0, 0, window->width, window->height);
+
+ if (callback)
+ wl_callback_destroy(callback);
+
+ window->callback = wl_surface_frame(window->surface);
+ wl_callback_add_listener(window->callback, &frame_listener, window);
+ wl_surface_commit(window->surface);
+ buffer->busy = 1;
+}
+
+static const struct wl_callback_listener frame_listener = {
+ redraw
+};
+
+static void
+dmabuf_format(void *data, struct zlinux_dmabuf *zlinux_dmabuf, uint32_t format)
+{
+ struct display *d = data;
+
+ if (format == ZLINUX_DMABUF_FORMAT_XRGB8888)
+ d->xrgb8888_format_found = 1;
+}
+
+static const struct zlinux_dmabuf_listener dmabuf_listener = {
+ dmabuf_format
+};
+
+static void
+xdg_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial)
+{
+ xdg_shell_pong(shell, serial);
+}
+
+static const struct xdg_shell_listener xdg_shell_listener = {
+ xdg_shell_ping,
+};
+
+#define XDG_VERSION 4 /* The version of xdg-shell that we implement */
+#ifdef static_assert
+static_assert(XDG_VERSION == XDG_SHELL_VERSION_CURRENT,
+ "Interface version doesn't match implementation version");
+#endif
+
+static void
+registry_handle_global(void *data, struct wl_registry *registry,
+ uint32_t id, const char *interface, uint32_t version)
+{
+ struct display *d = data;
+
+ if (strcmp(interface, "wl_compositor") == 0) {
+ d->compositor =
+ wl_registry_bind(registry,
+ id, &wl_compositor_interface, 1);
+ } else if (strcmp(interface, "xdg_shell") == 0) {
+ d->shell = wl_registry_bind(registry,
+ id, &xdg_shell_interface, 1);
+ xdg_shell_use_unstable_version(d->shell, XDG_VERSION);
+ xdg_shell_add_listener(d->shell, &xdg_shell_listener, d);
+ } else if (strcmp(interface, "_wl_fullscreen_shell") == 0) {
+ d->fshell = wl_registry_bind(registry,
+ id, &_wl_fullscreen_shell_interface, 1);
+ } else if (strcmp(interface, "zlinux_dmabuf") == 0) {
+ d->dmabuf = wl_registry_bind(registry,
+ id, &zlinux_dmabuf_interface, 1);
+ zlinux_dmabuf_add_listener(d->dmabuf, &dmabuf_listener, d);
+ }
+}
+
+static void
+registry_handle_global_remove(void *data, struct wl_registry *registry,
+ uint32_t name)
+{
+}
+
+static const struct wl_registry_listener registry_listener = {
+ registry_handle_global,
+ registry_handle_global_remove
+};
+
+static struct display *
+create_display(void)
+{
+ struct display *display;
+
+ display = malloc(sizeof *display);
+ if (display == NULL) {
+ fprintf(stderr, "out of memory\n");
+ exit(1);
+ }
+ display->display = wl_display_connect(NULL);
+ assert(display->display);
+
+ display->xrgb8888_format_found = 1;
+ display->registry = wl_display_get_registry(display->display);
+ wl_registry_add_listener(display->registry,
+ ®istry_listener, display);
+ wl_display_roundtrip(display->display);
+ if (display->dmabuf == NULL) {
+ fprintf(stderr, "No zlinux_dmabuf global\n");
+ exit(1);
+ }
+
+ wl_display_roundtrip(display->display);
+
+ if (!display->xrgb8888_format_found) {
+ fprintf(stderr, "ZLINUX_DMABUF_FORMAT_XRGB8888 not available\n");
+ exit(1);
+ }
+
+ wl_display_get_fd(display->display);
+
+ return display;
+}
+
+static void
+destroy_display(struct display *display)
+{
+ if (display->dmabuf)
+ zlinux_dmabuf_destroy(display->dmabuf);
+
+ if (display->shell)
+ xdg_shell_destroy(display->shell);
+
+ if (display->fshell)
+ _wl_fullscreen_shell_release(display->fshell);
+
+ if (display->compositor)
+ wl_compositor_destroy(display->compositor);
+
+ wl_registry_destroy(display->registry);
+ wl_display_flush(display->display);
+ wl_display_disconnect(display->display);
+ free(display);
+}
+
+static void
+signal_int(int signum)
+{
+ running = 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ struct sigaction sigint;
+ struct display *display;
+ struct window *window;
+ int ret = 0;
+
+ display = create_display();
+ window = create_window(display, 250, 250);
+ if (!window)
+ return 1;
+
+ sigint.sa_handler = signal_int;
+ sigemptyset(&sigint.sa_mask);
+ sigint.sa_flags = SA_RESETHAND;
+ sigaction(SIGINT, &sigint, NULL);
+
+ /* Initialise damage to full surface, so the padding gets painted */
+ 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;
+}
diff --git a/configure.ac b/configure.ac
index eeab641..c33366c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -313,6 +313,15 @@ if test x$enable_simple_egl_clients = xyes; then
[egl >= 7.10 glesv2 wayland-client wayland-egl wayland-cursor])
fi
+AC_ARG_ENABLE(simple-intel-dmabuf-client,
+ AS_HELP_STRING([--disable-simple-intel-dmabuf-client],
+ [do not build the simple intel dmabuf client]),,
+ enable_simple_intel_dmabuf_client="yes")
+AM_CONDITIONAL(BUILD_SIMPLE_INTEL_DMABUF_CLIENT, test "x$enable_simple_intel_dmabuf_client" = "xyes")
+if test "x$enable_simple_intel_dmabuf_client" = "xyes"; then
+ PKG_CHECK_MODULES(SIMPLE_DMABUF_CLIENT, [wayland-client libdrm_intel])
+fi
+
AC_ARG_ENABLE(clients, [ --enable-clients],, enable_clients=yes)
AM_CONDITIONAL(BUILD_CLIENTS, test x$enable_clients = xyes)
if test x$enable_clients = xyes; then
--
2.1.0
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