mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-09-06 09:56:14 +00:00
![Robert Mader](/assets/img/avatar_default.png)
It is used in Mesa. Lets switch to it as well in order to provide good examples and encourage proper API usage. Signed-off-by: Robert Mader <robert.mader@collabora.com>
1562 lines
44 KiB
C
1562 lines
44 KiB
C
/*
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* Copyright © 2020 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <assert.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <libudev.h>
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#include <sys/mman.h>
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#include <time.h>
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#include "shared/helpers.h"
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#include "shared/platform.h"
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#include "shared/weston-drm-fourcc.h"
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#include <libweston/zalloc.h>
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#include <libweston/pixel-formats.h>
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#include "xdg-shell-client-protocol.h"
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#include "linux-dmabuf-unstable-v1-client-protocol.h"
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#include "presentation-time-client-protocol.h"
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#include <xf86drm.h>
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#include <gbm.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#define L_LINE "│ "
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#define L_VAL "├───"
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#define L_LAST "└───"
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#define L_GAP " "
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#define NUM_BUFFERS 4
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/* We have to hack the DRM-backend to pretend that planes of the underlying
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* hardware don't support this format. If you change the value of this constant,
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* do not forget to change in the DRM-backend as well. See main() description
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* for more details. */
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#define INITIAL_BUFFER_FORMAT DRM_FORMAT_XRGB8888
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static const char *vert_shader_text =
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"attribute vec4 pos;\n"
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"attribute vec4 color;\n"
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"varying vec4 v_color;\n"
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"void main() {\n"
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" gl_Position = pos;\n"
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" v_color = color;\n"
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"}\n";
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static const char *frag_shader_text =
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"precision mediump float;\n"
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"varying vec4 v_color;\n"
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"void main() {\n"
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" gl_FragColor = v_color;\n"
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"}\n";
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struct drm_format {
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uint32_t format;
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struct wl_array modifiers;
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};
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struct drm_format_array {
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struct wl_array arr;
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};
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struct dmabuf_feedback_format_table {
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unsigned int size;
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struct {
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uint32_t format;
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uint32_t padding; /* unused */
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uint64_t modifier;
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} *data;
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};
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struct dmabuf_feedback_tranche {
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dev_t target_device;
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bool is_scanout_tranche;
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struct drm_format_array formats;
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};
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struct dmabuf_feedback {
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dev_t main_device;
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struct dmabuf_feedback_format_table format_table;
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struct wl_array tranches;
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struct dmabuf_feedback_tranche pending_tranche;
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};
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struct output {
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struct wl_output *wl_output;
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int x, y;
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int width, height;
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int scale;
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bool initialized;
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};
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struct egl {
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EGLDisplay display;
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EGLContext context;
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EGLConfig conf;
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PFNEGLQUERYDMABUFMODIFIERSEXTPROC query_dmabuf_modifiers;
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PFNEGLCREATEIMAGEKHRPROC create_image;
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PFNEGLDESTROYIMAGEKHRPROC destroy_image;
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PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
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};
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struct gl {
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GLuint program;
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GLuint pos;
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GLuint color;
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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 output output;
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struct xdg_wm_base *wm_base;
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struct zwp_linux_dmabuf_v1 *dmabuf;
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struct wp_presentation *presentation;
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struct gbm_device *gbm_device;
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struct egl egl;
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};
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struct buffer {
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struct window *window;
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struct wl_buffer *buffer;
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enum {
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NOT_CREATED,
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IN_USE,
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AVAILABLE
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} status;
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bool recreate;
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int dmabuf_fds[4];
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struct gbm_bo *bo;
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EGLImageKHR egl_image;
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GLuint gl_texture;
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GLuint gl_fbo;
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int num_planes;
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uint32_t width, height, strides[4], offsets[4];
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uint32_t format;
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uint64_t modifier;
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};
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struct window {
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struct display *display;
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struct gl gl;
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struct wl_surface *surface;
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struct xdg_surface *xdg_surface;
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struct xdg_toplevel *xdg_toplevel;
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struct wl_callback *callback;
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struct wp_presentation_feedback *presentation_feedback;
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bool wait_for_configure;
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bool presented_zero_copy;
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struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback_obj;
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struct dmabuf_feedback dmabuf_feedback, pending_dmabuf_feedback;
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int card_fd;
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struct drm_format format;
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uint32_t bo_flags;
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struct buffer buffers[NUM_BUFFERS];
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};
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static void
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drm_format_array_init(struct drm_format_array *formats)
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{
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wl_array_init(&formats->arr);
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}
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static void
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drm_format_array_fini(struct drm_format_array *formats)
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{
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struct drm_format *fmt;
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wl_array_for_each(fmt, &formats->arr)
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wl_array_release(&fmt->modifiers);
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wl_array_release(&formats->arr);
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}
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static struct drm_format *
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drm_format_array_add_format(struct drm_format_array *formats, uint32_t format)
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{
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struct drm_format *fmt;
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wl_array_for_each(fmt, &formats->arr)
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if (fmt->format == format)
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return fmt;
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fmt = wl_array_add(&formats->arr, sizeof(*fmt));
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assert(fmt && "error: could not allocate memory for format");
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fmt->format = format;
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wl_array_init(&fmt->modifiers);
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return fmt;
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}
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static void
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drm_format_add_modifier(struct drm_format *format, uint64_t modifier)
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{
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uint64_t *mod;
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wl_array_for_each(mod, &format->modifiers)
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if (*mod == modifier)
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return;
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mod = wl_array_add(&format->modifiers, sizeof(uint64_t));
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assert(mod && "error: could not allocate memory for modifier");
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*mod = modifier;
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}
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static void
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dmabuf_feedback_format_table_fini(struct dmabuf_feedback_format_table *format_table)
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{
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if (format_table->data && format_table->data != MAP_FAILED)
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munmap(format_table->data, format_table->size);
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}
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static void
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dmabuf_feedback_format_table_init(struct dmabuf_feedback_format_table *format_table)
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{
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memset(format_table, 0, sizeof(*format_table));
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}
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static void
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dmabuf_feedback_tranche_fini(struct dmabuf_feedback_tranche *tranche)
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{
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drm_format_array_fini(&tranche->formats);
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}
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static void
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dmabuf_feedback_tranche_init(struct dmabuf_feedback_tranche *tranche)
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{
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memset(tranche, 0, sizeof(*tranche));
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drm_format_array_init(&tranche->formats);
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}
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static void
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dmabuf_feedback_fini(struct dmabuf_feedback *feedback)
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{
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struct dmabuf_feedback_tranche *tranche;
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dmabuf_feedback_tranche_fini(&feedback->pending_tranche);
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wl_array_for_each(tranche, &feedback->tranches)
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dmabuf_feedback_tranche_fini(tranche);
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dmabuf_feedback_format_table_fini(&feedback->format_table);
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}
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static void
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dmabuf_feedback_init(struct dmabuf_feedback *feedback)
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{
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memset(feedback, 0, sizeof(*feedback));
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dmabuf_feedback_tranche_init(&feedback->pending_tranche);
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wl_array_init(&feedback->tranches);
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dmabuf_feedback_format_table_init(&feedback->format_table);
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}
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static GLuint
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create_shader(const char *source, GLenum shader_type)
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{
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GLuint shader;
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GLint status;
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shader = glCreateShader(shader_type);
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assert(shader != 0);
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glShaderSource(shader, 1, (const char **) &source, NULL);
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glCompileShader(shader);
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glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
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if (!status) {
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char log[1000];
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GLsizei len;
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glGetShaderInfoLog(shader, 1000, &len, log);
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fprintf(stderr, "error: compiling %s: %.*s\n",
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shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment",
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len, log);
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return 0;
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}
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return shader;
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}
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static GLuint
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create_and_link_program(GLuint vert, GLuint frag)
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{
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GLint status;
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GLuint program = glCreateProgram();
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glAttachShader(program, vert);
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glAttachShader(program, frag);
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glLinkProgram(program);
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glGetProgramiv(program, GL_LINK_STATUS, &status);
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if (!status) {
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char log[1000];
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GLsizei len;
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glGetProgramInfoLog(program, 1000, &len, log);
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fprintf(stderr, "error: linking:\n%.*s\n", len, log);
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return 0;
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}
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return program;
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}
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static void
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create_fbo_for_buffer(struct buffer *buffer)
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{
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struct display *display = buffer->window->display;
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static const int general_attribs = 3;
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static const int plane_attribs = 5;
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static const int entries_per_attrib = 2;
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EGLint attribs[(general_attribs + (plane_attribs * 4)) * entries_per_attrib + 1];
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unsigned int atti = 0;
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attribs[atti++] = EGL_WIDTH;
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attribs[atti++] = buffer->width;
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attribs[atti++] = EGL_HEIGHT;
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attribs[atti++] = buffer->height;
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attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
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attribs[atti++] = buffer->format;
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attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
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attribs[atti++] = buffer->dmabuf_fds[0];
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attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
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attribs[atti++] = (int) buffer->offsets[0];
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attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
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attribs[atti++] = (int) buffer->strides[0];
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attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
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attribs[atti++] = buffer->modifier & 0xFFFFFFFF;
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attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
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attribs[atti++] = buffer->modifier >> 32;
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if (buffer->num_planes > 1) {
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attribs[atti++] = EGL_DMA_BUF_PLANE1_FD_EXT;
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attribs[atti++] = buffer->dmabuf_fds[1];
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attribs[atti++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT;
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attribs[atti++] = (int) buffer->offsets[1];
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attribs[atti++] = EGL_DMA_BUF_PLANE1_PITCH_EXT;
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attribs[atti++] = (int) buffer->strides[1];
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attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
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attribs[atti++] = buffer->modifier & 0xFFFFFFFF;
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attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
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attribs[atti++] = buffer->modifier >> 32;
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}
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if (buffer->num_planes > 2) {
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attribs[atti++] = EGL_DMA_BUF_PLANE2_FD_EXT;
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attribs[atti++] = buffer->dmabuf_fds[2];
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attribs[atti++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT;
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attribs[atti++] = (int) buffer->offsets[2];
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attribs[atti++] = EGL_DMA_BUF_PLANE2_PITCH_EXT;
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attribs[atti++] = (int) buffer->strides[2];
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attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
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attribs[atti++] = buffer->modifier & 0xFFFFFFFF;
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attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
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attribs[atti++] = buffer->modifier >> 32;
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}
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if (buffer->num_planes > 3) {
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attribs[atti++] = EGL_DMA_BUF_PLANE3_FD_EXT;
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attribs[atti++] = buffer->dmabuf_fds[3];
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attribs[atti++] = EGL_DMA_BUF_PLANE3_OFFSET_EXT;
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attribs[atti++] = (int) buffer->offsets[3];
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attribs[atti++] = EGL_DMA_BUF_PLANE3_PITCH_EXT;
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attribs[atti++] = (int) buffer->strides[3];
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attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT;
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attribs[atti++] = buffer->modifier & 0xFFFFFFFF;
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attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT;
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attribs[atti++] = buffer->modifier >> 32;
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}
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attribs[atti] = EGL_NONE;
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assert(atti < ARRAY_LENGTH(attribs));
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buffer->egl_image = display->egl.create_image(display->egl.display,
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EGL_NO_CONTEXT,
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EGL_LINUX_DMA_BUF_EXT,
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NULL, attribs);
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assert(buffer->egl_image != EGL_NO_IMAGE_KHR &&
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"error: EGLImageKHR creation failed");
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if (eglMakeCurrent(display->egl.display, EGL_NO_SURFACE,
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EGL_NO_SURFACE, display->egl.context) != EGL_TRUE)
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assert(0 && "error: failed to make context current");
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glGenTextures(1, &buffer->gl_texture);
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glBindTexture(GL_TEXTURE_2D, buffer->gl_texture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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display->egl.image_target_texture_2d(GL_TEXTURE_2D, buffer->egl_image);
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glGenFramebuffers(1, &buffer->gl_fbo);
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glBindFramebuffer(GL_FRAMEBUFFER, buffer->gl_fbo);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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GL_TEXTURE_2D, buffer->gl_texture, 0);
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if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
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assert(0 && "error: FBO creation failed");
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}
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static void
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buffer_free(struct buffer *buf)
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{
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struct egl *egl = &buf->window->display->egl;
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int i;
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if (buf->buffer)
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wl_buffer_destroy(buf->buffer);
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if (buf->gl_fbo)
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glDeleteFramebuffers(1, &buf->gl_fbo);
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if (buf->gl_texture)
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glDeleteTextures(1, &buf->gl_texture);
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if (buf->egl_image)
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egl->destroy_image(egl->display, buf->egl_image);
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if (buf->bo)
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gbm_bo_destroy(buf->bo);
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for (i = 0; i < buf->num_planes; i++)
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close(buf->dmabuf_fds[i]);
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}
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static void
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create_dmabuf_buffer(struct window *window, struct buffer *buf, uint32_t width,
|
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uint32_t height, uint32_t format, unsigned int count_modifiers,
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uint64_t *modifiers, uint32_t bo_flags);
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static void
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buffer_recreate(struct buffer *buf)
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{
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struct window *window = buf->window;
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uint32_t width = buf->width;
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uint32_t height = buf->height;
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buffer_free(buf);
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create_dmabuf_buffer(window, buf, width, height,
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window->format.format,
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window->format.modifiers.size / sizeof(uint64_t),
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window->format.modifiers.data, window->bo_flags);
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buf->recreate = false;
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}
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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 *buf = data;
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buf->status = AVAILABLE;
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if (buf->recreate)
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buffer_recreate(buf);
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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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|
};
|
|
|
|
static void
|
|
create_succeeded(void *data, struct zwp_linux_buffer_params_v1 *params,
|
|
struct wl_buffer *new_buffer)
|
|
{
|
|
struct buffer *buf = data;
|
|
|
|
buf->status = AVAILABLE;
|
|
buf->buffer = new_buffer;
|
|
wl_buffer_add_listener(buf->buffer, &buffer_listener, buf);
|
|
zwp_linux_buffer_params_v1_destroy(params);
|
|
}
|
|
|
|
static void
|
|
create_failed(void *data, struct zwp_linux_buffer_params_v1 *params)
|
|
{
|
|
struct buffer *buf = data;
|
|
|
|
buf->buffer = NULL;
|
|
zwp_linux_buffer_params_v1_destroy(params);
|
|
|
|
assert(0 && "error: zwp_linux_buffer_params.create failed");
|
|
}
|
|
|
|
static const struct zwp_linux_buffer_params_v1_listener params_listener = {
|
|
create_succeeded,
|
|
create_failed
|
|
};
|
|
|
|
static void
|
|
create_dmabuf_buffer(struct window *window, struct buffer *buf, uint32_t width,
|
|
uint32_t height, uint32_t format, unsigned int count_modifiers,
|
|
uint64_t *modifiers, uint32_t bo_flags)
|
|
{
|
|
struct display *display = window->display;
|
|
static uint32_t flags = 0;
|
|
struct zwp_linux_buffer_params_v1 *params;
|
|
int i;
|
|
|
|
buf->status = NOT_CREATED;
|
|
buf->window = window;
|
|
buf->width = width;
|
|
buf->height = height;
|
|
buf->format = format;
|
|
|
|
#ifdef HAVE_GBM_MODIFIERS
|
|
if (count_modifiers > 0) {
|
|
#ifdef HAVE_GBM_BO_CREATE_WITH_MODIFIERS2
|
|
buf->bo = gbm_bo_create_with_modifiers2(display->gbm_device,
|
|
buf->width, buf->height,
|
|
format, modifiers,
|
|
count_modifiers,
|
|
bo_flags);
|
|
#else
|
|
buf->bo = gbm_bo_create_with_modifiers(display->gbm_device,
|
|
buf->width, buf->height,
|
|
format, modifiers,
|
|
count_modifiers);
|
|
#endif
|
|
if (buf->bo)
|
|
buf->modifier = gbm_bo_get_modifier(buf->bo);
|
|
}
|
|
#endif
|
|
|
|
if (!buf->bo) {
|
|
buf->bo = gbm_bo_create(display->gbm_device, buf->width,
|
|
buf->height, buf->format,
|
|
bo_flags);
|
|
buf->modifier = DRM_FORMAT_MOD_INVALID;
|
|
}
|
|
|
|
assert(buf->bo && "error: could not create GBM bo for buffer");
|
|
|
|
buf->num_planes = gbm_bo_get_plane_count(buf->bo);
|
|
|
|
params = zwp_linux_dmabuf_v1_create_params(window->display->dmabuf);
|
|
zwp_linux_buffer_params_v1_add_listener(params, ¶ms_listener, buf);
|
|
|
|
for (i = 0; i < buf->num_planes; i++) {
|
|
buf->dmabuf_fds[i] = gbm_bo_get_fd_for_plane(buf->bo, i);
|
|
buf->strides[i] = gbm_bo_get_stride_for_plane(buf->bo, i);
|
|
buf->offsets[i] = gbm_bo_get_offset(buf->bo, i);
|
|
assert(buf->dmabuf_fds[i] >= 0 &&
|
|
"error: could not get fd for GBM bo");
|
|
assert(buf->strides[i] > 0 &&
|
|
"error: could not get stride for GBM bo");
|
|
|
|
zwp_linux_buffer_params_v1_add(params, buf->dmabuf_fds[i], i,
|
|
buf->offsets[i], buf->strides[i],
|
|
buf->modifier >> 32,
|
|
buf->modifier & 0xffffffff);
|
|
}
|
|
|
|
zwp_linux_buffer_params_v1_create(params, buf->width, buf->height,
|
|
buf->format, flags);
|
|
|
|
create_fbo_for_buffer(buf);
|
|
}
|
|
|
|
static struct buffer *
|
|
window_next_buffer(struct window *window)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < NUM_BUFFERS; i++)
|
|
if (window->buffers[i].status == AVAILABLE)
|
|
return &window->buffers[i];
|
|
|
|
/* In this client, we sometimes have to recreate the buffers. As we are
|
|
* not using the create_immed request from zwp_linux_dmabuf_v1, we need
|
|
* to wait an event from the server (what leads to create_succeeded()
|
|
* being called in this client). So if all buffers are busy, it may be
|
|
* the case in which all the buffers were recreated but the server still
|
|
* didn't send the events. This is very unlikely to happen, but a
|
|
* roundtrip() guarantees that we receive and process the events. */
|
|
wl_display_roundtrip(window->display->display);
|
|
|
|
for (i = 0; i < NUM_BUFFERS; i++)
|
|
if (window->buffers[i].status == AVAILABLE)
|
|
return &window->buffers[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
render(struct buffer *buffer)
|
|
{
|
|
struct window *window = buffer->window;
|
|
|
|
static const GLfloat verts[4][2] = {
|
|
{ -0.5, -0.5 },
|
|
{ -0.5, 0.5 },
|
|
{ 0.5, -0.5 },
|
|
{ 0.5, 0.5 }
|
|
};
|
|
static const GLfloat colors[4][3] = {
|
|
{ 1, 0, 0 },
|
|
{ 0, 1, 0 },
|
|
{ 0, 0, 1 },
|
|
{ 1, 1, 0 }
|
|
};
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, buffer->gl_fbo);
|
|
|
|
glViewport(0, 0, buffer->width, buffer->height);
|
|
|
|
glClearColor(0.0, 0.0, 0.0, 1.0);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
glVertexAttribPointer(window->gl.pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
|
|
glVertexAttribPointer(window->gl.color, 3, GL_FLOAT, GL_FALSE, 0, colors);
|
|
glEnableVertexAttribArray(window->gl.pos);
|
|
glEnableVertexAttribArray(window->gl.color);
|
|
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
|
|
glDisableVertexAttribArray(window->gl.pos);
|
|
glDisableVertexAttribArray(window->gl.color);
|
|
|
|
glFinish();
|
|
}
|
|
|
|
static const struct wl_callback_listener frame_listener;
|
|
static const struct wp_presentation_feedback_listener presentation_feedback_listener;
|
|
|
|
static void
|
|
redraw(void *data, struct wl_callback *callback, uint32_t time)
|
|
{
|
|
struct window *window = data;
|
|
struct buffer *buf;
|
|
struct wl_region *region;
|
|
|
|
buf = window_next_buffer(window);
|
|
assert(buf && "error: all buffers are busy");
|
|
|
|
render(buf);
|
|
|
|
wl_surface_attach(window->surface, buf->buffer, 0, 0);
|
|
wl_surface_damage(window->surface, 0, 0, buf->width, buf->height);
|
|
|
|
if (callback)
|
|
wl_callback_destroy(callback);
|
|
|
|
window->callback = wl_surface_frame(window->surface);
|
|
wl_callback_add_listener(window->callback, &frame_listener, window);
|
|
|
|
if (window->presentation_feedback)
|
|
wp_presentation_feedback_destroy(window->presentation_feedback);
|
|
if (window->display->presentation) {
|
|
window->presentation_feedback =
|
|
wp_presentation_feedback(window->display->presentation,
|
|
window->surface);
|
|
wp_presentation_feedback_add_listener(window->presentation_feedback,
|
|
&presentation_feedback_listener,
|
|
window);
|
|
}
|
|
|
|
wl_surface_commit(window->surface);
|
|
buf->status = IN_USE;
|
|
|
|
region = wl_compositor_create_region(window->display->compositor);
|
|
wl_region_add(region, 0, 0, window->display->output.width,
|
|
window->display->output.height);
|
|
wl_surface_set_opaque_region(window->surface, region);
|
|
wl_region_destroy(region);
|
|
}
|
|
|
|
static const struct wl_callback_listener frame_listener = {
|
|
redraw
|
|
};
|
|
|
|
static void presentation_feedback_handle_sync_output(void *data,
|
|
struct wp_presentation_feedback *feedback,
|
|
struct wl_output *output)
|
|
{
|
|
}
|
|
|
|
static void presentation_feedback_handle_presented(void *data,
|
|
struct wp_presentation_feedback *feedback,
|
|
uint32_t tv_sec_hi,
|
|
uint32_t tv_sec_lo,
|
|
uint32_t tv_nsec,
|
|
uint32_t refresh,
|
|
uint32_t seq_hi,
|
|
uint32_t seq_lo,
|
|
uint32_t flags)
|
|
{
|
|
struct window *window = data;
|
|
bool zero_copy = flags & WP_PRESENTATION_FEEDBACK_KIND_ZERO_COPY;
|
|
|
|
if (zero_copy && !window->presented_zero_copy) {
|
|
fprintf(stderr, "Presenting in zero-copy mode\n");
|
|
}
|
|
if (!zero_copy && window->presented_zero_copy) {
|
|
fprintf(stderr, "Stopped presenting in zero-copy mode\n");
|
|
}
|
|
|
|
window->presented_zero_copy = zero_copy;
|
|
wp_presentation_feedback_destroy(feedback);
|
|
}
|
|
|
|
static void presentation_feedback_handle_discarded(void *data,
|
|
struct wp_presentation_feedback *feedback)
|
|
{
|
|
wp_presentation_feedback_destroy(feedback);
|
|
}
|
|
|
|
static const struct wp_presentation_feedback_listener presentation_feedback_listener = {
|
|
.sync_output = presentation_feedback_handle_sync_output,
|
|
.presented = presentation_feedback_handle_presented,
|
|
.discarded = presentation_feedback_handle_discarded,
|
|
};
|
|
|
|
static void
|
|
xdg_surface_handle_configure(void *data, struct xdg_surface *surface,
|
|
uint32_t serial)
|
|
{
|
|
struct window *window = data;
|
|
|
|
xdg_surface_ack_configure(surface, serial);
|
|
window->wait_for_configure = false;
|
|
}
|
|
|
|
static const struct xdg_surface_listener xdg_surface_listener = {
|
|
xdg_surface_handle_configure,
|
|
};
|
|
|
|
static void
|
|
xdg_toplevel_handle_configure(void *data, struct xdg_toplevel *toplevel,
|
|
int32_t width, int32_t height,
|
|
struct wl_array *states)
|
|
{
|
|
}
|
|
|
|
static void
|
|
xdg_toplevel_handle_close(void *data, struct xdg_toplevel *xdg_toplevel)
|
|
{
|
|
assert(0 && "error: window closed, this should not happen");
|
|
}
|
|
|
|
static const struct xdg_toplevel_listener xdg_toplevel_listener = {
|
|
xdg_toplevel_handle_configure,
|
|
xdg_toplevel_handle_close,
|
|
};
|
|
|
|
static void
|
|
gbm_setup(struct window *window)
|
|
{
|
|
struct display *display = window->display;
|
|
|
|
display->gbm_device = gbm_create_device(window->card_fd);
|
|
assert(display->gbm_device && "error: could not create GBM device");
|
|
}
|
|
|
|
static void
|
|
egl_setup(struct window *window)
|
|
{
|
|
struct display *display = window->display;
|
|
struct egl *egl = &display->egl;
|
|
const char *egl_extensions = NULL;
|
|
const char *gl_extensions = NULL;
|
|
EGLint major, minor;
|
|
EGLint ret;
|
|
|
|
static const EGLint context_attribs[] = {
|
|
EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE
|
|
};
|
|
|
|
egl->display = weston_platform_get_egl_display(EGL_PLATFORM_GBM_KHR,
|
|
display->gbm_device, NULL);
|
|
assert(egl->display && "error: could not create EGL display");
|
|
|
|
ret = eglInitialize(egl->display, &major, &minor);
|
|
assert(ret != EGL_FALSE && "error: failed to intialized EGL display");
|
|
|
|
ret = eglBindAPI(EGL_OPENGL_ES_API);
|
|
assert(ret != EGL_FALSE && "error: failed to set EGL API");
|
|
|
|
egl_extensions = eglQueryString(egl->display, EGL_EXTENSIONS);
|
|
assert(egl_extensions &&
|
|
"error: could not retrieve supported EGL extensions");
|
|
|
|
assert(weston_check_egl_extension(egl_extensions,
|
|
"EGL_EXT_image_dma_buf_import"));
|
|
assert(weston_check_egl_extension(egl_extensions,
|
|
"EGL_KHR_surfaceless_context"));
|
|
assert(weston_check_egl_extension(egl_extensions,
|
|
"EGL_EXT_image_dma_buf_import_modifiers"));
|
|
assert(weston_check_egl_extension(egl_extensions,
|
|
"EGL_KHR_no_config_context"));
|
|
|
|
egl->context = eglCreateContext(egl->display, EGL_NO_CONFIG_KHR,
|
|
EGL_NO_CONTEXT, context_attribs);
|
|
assert(egl->context != EGL_NO_CONTEXT &&
|
|
"error: failed to create EGLContext");
|
|
|
|
ret = eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
|
|
egl->context);
|
|
assert(ret == EGL_TRUE && "error: failed to make context current");
|
|
|
|
gl_extensions = (const char *) glGetString(GL_EXTENSIONS);
|
|
assert(gl_extensions &&
|
|
"error: could not retrieve supported GL extensions");
|
|
|
|
assert(weston_check_egl_extension(gl_extensions,
|
|
"GL_OES_EGL_image"));
|
|
|
|
egl->query_dmabuf_modifiers =
|
|
(void *) eglGetProcAddress("eglQueryDmaBufModifiersEXT");
|
|
egl->create_image =
|
|
(void *) eglGetProcAddress("eglCreateImageKHR");
|
|
egl->destroy_image =
|
|
(void *) eglGetProcAddress("eglDestroyImageKHR");
|
|
egl->image_target_texture_2d =
|
|
(void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
|
|
}
|
|
|
|
static void
|
|
gl_setup(struct window *window)
|
|
{
|
|
struct gl *gl = &window->gl;
|
|
GLuint vert;
|
|
GLuint frag;
|
|
|
|
vert = create_shader(vert_shader_text, GL_VERTEX_SHADER);
|
|
assert(vert != 0 && "error: failed to compile vertex shader");
|
|
frag = create_shader(frag_shader_text, GL_FRAGMENT_SHADER);
|
|
assert(frag != 0 && "error: failed to compile fragment shader");
|
|
|
|
gl->program = create_and_link_program(vert ,frag);
|
|
assert(gl->program != 0 &&
|
|
"error: failed to attach shaders and create a program");
|
|
|
|
glDeleteShader(vert);
|
|
glDeleteShader(frag);
|
|
|
|
gl->pos = glGetAttribLocation(window->gl.program, "pos");
|
|
gl->color = glGetAttribLocation(window->gl.program, "color");
|
|
|
|
glUseProgram(gl->program);
|
|
}
|
|
|
|
static void
|
|
destroy_window(struct window *window)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (window->callback)
|
|
wl_callback_destroy(window->callback);
|
|
if (window->presentation_feedback)
|
|
wp_presentation_feedback_destroy(window->presentation_feedback);
|
|
|
|
for (i = 0; i < NUM_BUFFERS; i++)
|
|
if (window->buffers[i].buffer)
|
|
buffer_free(&window->buffers[i]);
|
|
|
|
if (window->xdg_toplevel)
|
|
xdg_toplevel_destroy(window->xdg_toplevel);
|
|
if (window->xdg_surface)
|
|
xdg_surface_destroy(window->xdg_surface);
|
|
|
|
wl_surface_destroy(window->surface);
|
|
|
|
close(window->card_fd);
|
|
|
|
wl_array_release(&window->format.modifiers);
|
|
|
|
dmabuf_feedback_fini(&window->dmabuf_feedback);
|
|
dmabuf_feedback_fini(&window->pending_dmabuf_feedback);
|
|
|
|
free(window);
|
|
}
|
|
|
|
static const struct zwp_linux_dmabuf_feedback_v1_listener dmabuf_feedback_listener;
|
|
|
|
static struct window *
|
|
create_window(struct display *display)
|
|
{
|
|
struct window *window;
|
|
uint32_t width = display->output.width;
|
|
uint32_t height = display->output.height;
|
|
unsigned int i;
|
|
|
|
window = zalloc(sizeof *window);
|
|
assert(window && "error: failed to allocate memory for window");
|
|
|
|
window->display = display;
|
|
window->surface = wl_compositor_create_surface(display->compositor);
|
|
|
|
dmabuf_feedback_init(&window->dmabuf_feedback);
|
|
dmabuf_feedback_init(&window->pending_dmabuf_feedback);
|
|
|
|
wl_array_init(&window->format.modifiers);
|
|
|
|
window->dmabuf_feedback_obj =
|
|
zwp_linux_dmabuf_v1_get_surface_feedback(display->dmabuf,
|
|
window->surface);
|
|
|
|
zwp_linux_dmabuf_feedback_v1_add_listener(window->dmabuf_feedback_obj,
|
|
&dmabuf_feedback_listener,
|
|
window);
|
|
wl_display_roundtrip(display->display);
|
|
|
|
assert(window->format.format == INITIAL_BUFFER_FORMAT &&
|
|
"error: could not setup window->format based on dma-buf feedback");
|
|
|
|
gbm_setup(window);
|
|
egl_setup(window);
|
|
gl_setup(window);
|
|
|
|
for (i = 0; i < NUM_BUFFERS; i++)
|
|
create_dmabuf_buffer(window, &window->buffers[i], width, height,
|
|
window->format.format,
|
|
window->format.modifiers.size / sizeof(uint64_t),
|
|
window->format.modifiers.data, window->bo_flags);
|
|
|
|
|
|
window->xdg_surface = xdg_wm_base_get_xdg_surface(display->wm_base,
|
|
window->surface);
|
|
assert(window->xdg_surface && "error: could not get XDG surface");
|
|
xdg_surface_add_listener(window->xdg_surface, &xdg_surface_listener,
|
|
window);
|
|
|
|
window->xdg_toplevel = xdg_surface_get_toplevel(window->xdg_surface);
|
|
assert(window->xdg_toplevel && "error: could not get XDG toplevel");
|
|
xdg_toplevel_add_listener(window->xdg_toplevel, &xdg_toplevel_listener,
|
|
window);
|
|
|
|
xdg_toplevel_set_title(window->xdg_toplevel, "simple-dmabuf-feedback");
|
|
xdg_toplevel_set_app_id(window->xdg_toplevel,
|
|
"org.freedesktop.weston.simple-dmabuf-feedback");
|
|
|
|
window->wait_for_configure = true;
|
|
wl_surface_commit(window->surface);
|
|
|
|
wl_display_roundtrip(display->display);
|
|
|
|
xdg_toplevel_set_fullscreen(window->xdg_toplevel, NULL);
|
|
|
|
assert(!window->wait_for_configure &&
|
|
"error: could not configure XDG surface");
|
|
|
|
return window;
|
|
}
|
|
|
|
static char *
|
|
get_most_appropriate_node(const char *drm_node, bool is_scanout_device)
|
|
{
|
|
drmDevice **devices;
|
|
drmDevice *match = NULL;
|
|
char *appropriate_node = NULL;
|
|
int num_devices;
|
|
int i, j;
|
|
|
|
num_devices = drmGetDevices2(0, NULL, 0);
|
|
assert(num_devices > 0 && "error: no drm devices available");
|
|
|
|
devices = zalloc(num_devices * sizeof(*devices));
|
|
assert(devices && "error: failed to allocate memory for drm devices");
|
|
|
|
num_devices = drmGetDevices2(0, devices, num_devices);
|
|
assert(num_devices > 0 && "error: no drm devices available");
|
|
|
|
for (i = 0; i < num_devices && match == NULL; i++) {
|
|
for (j = 0; j < DRM_NODE_MAX && match == NULL; j++) {
|
|
if (!(devices[i]->available_nodes & (1 << j)))
|
|
continue;
|
|
if (strcmp(devices[i]->nodes[j], drm_node) == 0)
|
|
match = devices[i];
|
|
}
|
|
}
|
|
assert(match != NULL && "error: could not find device on the list");
|
|
assert(match->available_nodes & (1 << DRM_NODE_PRIMARY));
|
|
|
|
if (is_scanout_device) {
|
|
appropriate_node = strdup(match->nodes[DRM_NODE_PRIMARY]);
|
|
} else {
|
|
if (match->available_nodes & (1 << DRM_NODE_RENDER))
|
|
appropriate_node = strdup(match->nodes[DRM_NODE_RENDER]);
|
|
else
|
|
appropriate_node = strdup(match->nodes[DRM_NODE_PRIMARY]);
|
|
}
|
|
assert(appropriate_node && "error: could not get drm node");
|
|
|
|
for (i = 0; i < num_devices; i++)
|
|
drmFreeDevice(&devices[i]);
|
|
free(devices);
|
|
|
|
return appropriate_node;
|
|
}
|
|
|
|
static char *
|
|
get_drm_node(dev_t device, bool is_scanout_device)
|
|
{
|
|
struct udev *udev;
|
|
struct udev_device *udev_dev;
|
|
const char *drm_node;
|
|
|
|
udev = udev_new();
|
|
assert(udev && "error: failed to create udev context object");
|
|
|
|
udev_dev = udev_device_new_from_devnum(udev, 'c', device);
|
|
assert(udev_dev && "error: failed to create udev device");
|
|
|
|
drm_node = udev_device_get_devnode(udev_dev);
|
|
assert(drm_node && "error: failed to retrieve drm node");
|
|
|
|
udev_unref(udev);
|
|
|
|
return get_most_appropriate_node(drm_node, is_scanout_device);
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_format_table(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
|
|
int32_t fd, uint32_t size)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
|
|
feedback->format_table.size = size;
|
|
feedback->format_table.data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
|
|
close(fd);
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_main_device(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback,
|
|
struct wl_array *dev)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
char *drm_node;
|
|
|
|
assert(dev->size == sizeof(feedback->main_device) &&
|
|
"error: compositor didn't send a dev_t, size is wrong");
|
|
memcpy(&feedback->main_device, dev->data, sizeof(dev));
|
|
|
|
drm_node = get_drm_node(feedback->main_device, false);
|
|
assert(drm_node && "error: failed to retrieve drm node");
|
|
|
|
fprintf(stderr, "feedback: main device %s\n", drm_node);
|
|
|
|
if (!window->card_fd) {
|
|
window->card_fd = open(drm_node, O_RDWR | O_CLOEXEC);
|
|
assert(window->card_fd > 0 && "error: could not open card node");
|
|
}
|
|
|
|
free(drm_node);
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_tranche_target_device(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback,
|
|
struct wl_array *dev)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
|
|
assert(dev->size == sizeof(feedback->pending_tranche.target_device) &&
|
|
"error: compositor didn't send a dev_t, size is wrong");
|
|
|
|
memcpy(&feedback->pending_tranche.target_device, dev->data, sizeof(dev));
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_tranche_flags(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback,
|
|
uint32_t flags)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
|
|
if (flags & ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT)
|
|
feedback->pending_tranche.is_scanout_tranche = true;
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_tranche_formats(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback,
|
|
struct wl_array *indices)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
struct drm_format *fmt;
|
|
uint64_t modifier;
|
|
uint32_t format;
|
|
uint16_t *index;
|
|
|
|
/* Compositor may advertise or not a format table. If it does, we use
|
|
* it. Otherwise, we steal the most recent advertised format table */
|
|
if (feedback->format_table.data == NULL) {
|
|
feedback->format_table = window->dmabuf_feedback.format_table;
|
|
dmabuf_feedback_format_table_init(&window->dmabuf_feedback.format_table);
|
|
}
|
|
assert(feedback->format_table.data != NULL &&
|
|
"error: compositor should advertise format table");
|
|
assert(feedback->format_table.data != MAP_FAILED &&
|
|
"error: we could not map format table advertised by compositor");
|
|
|
|
wl_array_for_each(index, indices) {
|
|
format = feedback->format_table.data[*index].format;
|
|
modifier = feedback->format_table.data[*index].modifier;
|
|
|
|
fmt = drm_format_array_add_format(&feedback->pending_tranche.formats,
|
|
format);
|
|
drm_format_add_modifier(fmt, modifier);
|
|
}
|
|
}
|
|
|
|
static char
|
|
bits2graph(uint32_t value, unsigned bitoffset)
|
|
{
|
|
int c = (value >> bitoffset) & 0xff;
|
|
|
|
if (isgraph(c) || isspace(c))
|
|
return c;
|
|
|
|
return '?';
|
|
}
|
|
|
|
static void
|
|
fourcc2str(uint32_t format, char *str, int len)
|
|
{
|
|
int i;
|
|
|
|
assert(len >= 5);
|
|
|
|
for (i = 0; i < 4; i++)
|
|
str[i] = bits2graph(format, i * 8);
|
|
str[i] = '\0';
|
|
}
|
|
|
|
static void
|
|
print_tranche_format_modifier(uint32_t format, uint64_t modifier)
|
|
{
|
|
const struct pixel_format_info *fmt_info;
|
|
char *format_str;
|
|
char *mod_name;
|
|
int len;
|
|
|
|
mod_name = pixel_format_get_modifier(modifier);
|
|
fmt_info = pixel_format_get_info(format);
|
|
|
|
if (fmt_info) {
|
|
len = asprintf(&format_str, "%s", fmt_info->drm_format_name);
|
|
} else {
|
|
char fourcc_str[5];
|
|
|
|
fourcc2str(format, fourcc_str, sizeof(fourcc_str));
|
|
len = asprintf(&format_str, "%s (0x%08x)", fourcc_str, format);
|
|
}
|
|
assert(len > 0);
|
|
|
|
fprintf(stderr, L_LINE L_VAL " format %s, modifier %s\n",
|
|
format_str, mod_name);
|
|
|
|
free(format_str);
|
|
free(mod_name);
|
|
}
|
|
|
|
static void
|
|
print_dmabuf_feedback_tranche(struct dmabuf_feedback_tranche *tranche)
|
|
{
|
|
char *drm_node;
|
|
struct drm_format *fmt;
|
|
uint64_t *mod;
|
|
|
|
drm_node = get_drm_node(tranche->target_device, tranche->is_scanout_tranche);
|
|
assert(drm_node && "error: could not retrieve drm node");
|
|
|
|
fprintf(stderr, L_VAL " tranche: target device %s, %s\n",
|
|
drm_node, tranche->is_scanout_tranche ? "scanout" : "no flags");
|
|
|
|
wl_array_for_each(fmt, &tranche->formats.arr)
|
|
wl_array_for_each(mod, &fmt->modifiers)
|
|
print_tranche_format_modifier(fmt->format, *mod);
|
|
|
|
fprintf(stderr, L_LINE L_LAST " end of tranche\n");
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_tranche_done(void *data,
|
|
struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback *feedback = &window->pending_dmabuf_feedback;
|
|
struct dmabuf_feedback_tranche *tranche;
|
|
|
|
print_dmabuf_feedback_tranche(&feedback->pending_tranche);
|
|
|
|
tranche = wl_array_add(&feedback->tranches, sizeof(*tranche));
|
|
assert(tranche && "error: could not allocate memory for tranche");
|
|
|
|
memcpy(tranche, &feedback->pending_tranche, sizeof(*tranche));
|
|
|
|
dmabuf_feedback_tranche_init(&feedback->pending_tranche);
|
|
}
|
|
|
|
static bool
|
|
pick_initial_format_from_renderer_tranche(struct window *window,
|
|
struct dmabuf_feedback_tranche *tranche)
|
|
{
|
|
struct drm_format *fmt;
|
|
|
|
wl_array_for_each(fmt, &tranche->formats.arr) {
|
|
/* Skip formats that are not the one we want to start with. */
|
|
if (fmt->format != INITIAL_BUFFER_FORMAT)
|
|
continue;
|
|
|
|
window->format.format = fmt->format;
|
|
wl_array_copy(&window->format.modifiers, &fmt->modifiers);
|
|
|
|
window->bo_flags = GBM_BO_USE_RENDERING;
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
pick_format_from_scanout_tranche(struct window *window,
|
|
struct dmabuf_feedback_tranche *tranche)
|
|
{
|
|
struct drm_format *fmt;
|
|
const struct pixel_format_info *format_info;
|
|
|
|
wl_array_for_each(fmt, &tranche->formats.arr) {
|
|
|
|
/* Ignore the format that we want to pick from the render
|
|
* tranche. */
|
|
if (fmt->format == INITIAL_BUFFER_FORMAT)
|
|
continue;
|
|
|
|
/* Format should be supported by the compositor. */
|
|
format_info = pixel_format_get_info(fmt->format);
|
|
if (!format_info)
|
|
continue;
|
|
|
|
wl_array_release(&window->format.modifiers);
|
|
wl_array_init(&window->format.modifiers);
|
|
|
|
window->format.format = fmt->format;
|
|
wl_array_copy(&window->format.modifiers, &fmt->modifiers);
|
|
|
|
window->bo_flags = GBM_BO_USE_RENDERING | GBM_BO_USE_SCANOUT;
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
dmabuf_feedback_done(void *data, struct zwp_linux_dmabuf_feedback_v1 *dmabuf_feedback)
|
|
{
|
|
struct window *window = data;
|
|
struct dmabuf_feedback_tranche *tranche;
|
|
bool got_scanout_tranche = false;
|
|
unsigned int i;
|
|
|
|
fprintf(stderr, L_LAST " end of dma-buf feedback\n\n");
|
|
|
|
/* The first time that we receive dma-buf feedback for a surface it
|
|
* contains only the renderer tranches. We pick the INITIAL_BUFFER_FORMAT
|
|
* from there. Then the compositor should detect that the format is
|
|
* unsupported by the underlying hardware (not actually, but you should
|
|
* have faked this in the DRM-backend) and send the scanout tranches. We
|
|
* use the formats/modifiers of the scanout tranches to reallocate our
|
|
* buffers. */
|
|
wl_array_for_each(tranche, &window->pending_dmabuf_feedback.tranches) {
|
|
if (tranche->is_scanout_tranche) {
|
|
got_scanout_tranche = true;
|
|
if (pick_format_from_scanout_tranche(window, tranche)) {
|
|
for (i = 0; i < NUM_BUFFERS; i++)
|
|
window->buffers[i].recreate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (pick_initial_format_from_renderer_tranche(window, tranche))
|
|
break;
|
|
}
|
|
|
|
if (got_scanout_tranche) {
|
|
assert(window->format.format != INITIAL_BUFFER_FORMAT &&
|
|
"error: no valid pair of format/modifier in the scanout tranches");
|
|
} else {
|
|
assert(window->format.format == INITIAL_BUFFER_FORMAT &&
|
|
"error: INITIAL_BUFFER_FORMAT not supported by the hardware");
|
|
}
|
|
|
|
dmabuf_feedback_fini(&window->dmabuf_feedback);
|
|
window->dmabuf_feedback = window->pending_dmabuf_feedback;
|
|
dmabuf_feedback_init(&window->pending_dmabuf_feedback);
|
|
}
|
|
|
|
static const struct zwp_linux_dmabuf_feedback_v1_listener dmabuf_feedback_listener = {
|
|
.format_table = dmabuf_feedback_format_table,
|
|
.main_device = dmabuf_feedback_main_device,
|
|
.tranche_target_device = dmabuf_feedback_tranche_target_device,
|
|
.tranche_formats = dmabuf_feedback_tranche_formats,
|
|
.tranche_flags = dmabuf_feedback_tranche_flags,
|
|
.tranche_done = dmabuf_feedback_tranche_done,
|
|
.done = dmabuf_feedback_done,
|
|
};
|
|
|
|
static void
|
|
output_handle_geometry(void *data, struct wl_output *wl_output, int x, int y,
|
|
int physical_width, int physical_height, int subpixel,
|
|
const char *make, const char *model, int32_t transform)
|
|
{
|
|
struct output *output = data;
|
|
|
|
output->x = x;
|
|
output->y = y;
|
|
}
|
|
|
|
static void
|
|
output_handle_mode(void *data, struct wl_output *wl_output, uint32_t flags,
|
|
int width, int height, int refresh)
|
|
{
|
|
struct output *output = data;
|
|
|
|
if (flags & WL_OUTPUT_MODE_CURRENT) {
|
|
output->width = width;
|
|
output->height = height;
|
|
}
|
|
}
|
|
|
|
static void
|
|
output_handle_scale(void *data, struct wl_output *wl_output, int scale)
|
|
{
|
|
struct output *output = data;
|
|
|
|
output->scale = scale;
|
|
}
|
|
|
|
static void
|
|
output_handle_done(void *data, struct wl_output *wl_output)
|
|
{
|
|
struct output *output = data;
|
|
|
|
output->initialized = true;
|
|
}
|
|
|
|
static const struct wl_output_listener output_listener = {
|
|
output_handle_geometry,
|
|
output_handle_mode,
|
|
output_handle_done,
|
|
output_handle_scale,
|
|
};
|
|
|
|
static void
|
|
xdg_wm_base_ping(void *data, struct xdg_wm_base *wm_base, uint32_t serial)
|
|
{
|
|
xdg_wm_base_pong(wm_base, serial);
|
|
}
|
|
|
|
static const struct xdg_wm_base_listener xdg_wm_base_listener = {
|
|
xdg_wm_base_ping,
|
|
};
|
|
|
|
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_wm_base") == 0) {
|
|
d->wm_base = wl_registry_bind(registry, id,
|
|
&xdg_wm_base_interface,
|
|
1);
|
|
xdg_wm_base_add_listener(d->wm_base, &xdg_wm_base_listener, d);
|
|
} else if (strcmp(interface, "wl_output") == 0) {
|
|
d->output.wl_output = wl_registry_bind(registry, id,
|
|
&wl_output_interface,
|
|
MIN(version, 3));
|
|
wl_output_add_listener(d->output.wl_output,
|
|
&output_listener, &d->output);
|
|
} else if (strcmp(interface, "zwp_linux_dmabuf_v1") == 0) {
|
|
if (version < ZWP_LINUX_DMABUF_V1_GET_DEFAULT_FEEDBACK_SINCE_VERSION)
|
|
return;
|
|
d->dmabuf = wl_registry_bind(registry, id,
|
|
&zwp_linux_dmabuf_v1_interface,
|
|
MIN(version, 4));
|
|
} else if (strcmp(interface, "wp_presentation") == 0) {
|
|
d->presentation = wl_registry_bind(registry, id,
|
|
&wp_presentation_interface,
|
|
1);
|
|
}
|
|
}
|
|
|
|
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 void
|
|
destroy_display(struct display *display)
|
|
{
|
|
gbm_device_destroy(display->gbm_device);
|
|
|
|
if (display->egl.context != EGL_NO_CONTEXT)
|
|
eglDestroyContext(display->egl.display, display->egl.context);
|
|
if (display->egl.display != EGL_NO_DISPLAY)
|
|
eglTerminate(display->egl.display);
|
|
|
|
if (display->presentation)
|
|
wp_presentation_destroy(display->presentation);
|
|
|
|
zwp_linux_dmabuf_v1_destroy(display->dmabuf);
|
|
xdg_wm_base_destroy(display->wm_base);
|
|
|
|
wl_compositor_destroy(display->compositor);
|
|
wl_registry_destroy(display->registry);
|
|
|
|
wl_display_flush(display->display);
|
|
wl_display_disconnect(display->display);
|
|
|
|
free(display);
|
|
}
|
|
|
|
static struct display *
|
|
create_display()
|
|
{
|
|
struct display *display = NULL;
|
|
|
|
display = zalloc(sizeof *display);
|
|
assert(display && "error: failed to allocate memory for display");
|
|
|
|
display->display = wl_display_connect(NULL);
|
|
assert(display->display && "error: could not connect to compositor");
|
|
|
|
display->registry = wl_display_get_registry(display->display);
|
|
assert(display->registry && "error: could not get registry");
|
|
wl_registry_add_listener(display->registry, ®istry_listener, display);
|
|
|
|
wl_display_roundtrip(display->display);
|
|
assert(display->compositor && "error: could not create compositor interface");
|
|
assert(display->dmabuf && "error: dma-buf feedback is not supported by compositor");
|
|
|
|
wl_display_roundtrip(display->display);
|
|
assert(display->wm_base && "error: xdg shell is not supported by compositor");
|
|
assert(display->output.initialized && "error: output not initialized");
|
|
|
|
return display;
|
|
}
|
|
|
|
/* Simple client to test the dma-buf feedback implementation. This does not
|
|
* replace the need to implement a dma-buf feedback test that can be run in
|
|
* the CI. But as we still don't know exactly how to do this, this client
|
|
* can be helpful to run tests manually.
|
|
*
|
|
* In order to use this, we have to hack the DRM-backend to pretend that
|
|
* INITIAL_BUFFER_FORMAT is not supported by the planes of the underlying
|
|
* hardware. In Weston, we have to do this in
|
|
* drm_output_prepare_plane_view(), more specifically in the part where
|
|
* we call drm_output_plane_view_has_valid_format(). So we'd have something
|
|
* like this:
|
|
*
|
|
* // in this example, INITIAL_BUFFER_FORMAT == DRM_FORMAT_XRGB8888
|
|
*
|
|
* bool fake_unsupported_format = false;
|
|
* if (fb && fb->format->format == DRM_FORMAT_XRGB8888)
|
|
* fake_unsupported_format = true;
|
|
*
|
|
* if (!drm_output_plane_view_has_valid_format(plane, state, ev, fb) ||
|
|
* fake_unsupported_format)
|
|
* ...
|
|
*
|
|
* It creates a surface and buffers for it with the same resolution of the
|
|
* output mode in use. Also, it sets the surface to fullscreen. So we have
|
|
* everything set to allow the surface to be placed in a plane. But as
|
|
* these buffers are created with INITIAL_BUFFER_FORMAT, they are placed in
|
|
* the renderer.
|
|
*
|
|
* When the compositor creates the client surface, it adds only the
|
|
* renderer tranche to its dma-buf feedback object and send the feedback to
|
|
* the client. But as the repaint cycles start and Weston detects that the
|
|
* only reason why the surface has not been placed in a plane was the
|
|
* incompatibility between the framebuffer format and the ones supported by
|
|
* the planes of the underlying hardware, Weston adds a scanout tranche to
|
|
* the surface dma-buf feedback and resend them. In this tranche the client
|
|
* can find pairs of formats and modifiers supported by the planes, and so
|
|
* it can recreate its buffers using one of these pairs in order to
|
|
* increase the chances of its surface end up in a plane. */
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
struct display *display;
|
|
struct window *window;
|
|
int ret = 0;
|
|
struct timespec start_time, current_time;
|
|
const time_t MAX_TIME_SECONDS = 3;
|
|
time_t delta_time = 0;
|
|
|
|
fprintf(stderr, "This client was written with the purpose of manually test " \
|
|
"Weston's dma-buf feedback implementation. See main() " \
|
|
"description for more details on how to test this.\n\n");
|
|
|
|
display = create_display();
|
|
window = create_window(display);
|
|
|
|
clock_gettime(CLOCK_MONOTONIC, &start_time);
|
|
|
|
redraw(window, NULL, 0);
|
|
while (ret != -1 && delta_time < MAX_TIME_SECONDS) {
|
|
ret = wl_display_dispatch(display->display);
|
|
clock_gettime(CLOCK_MONOTONIC, ¤t_time);
|
|
delta_time = current_time.tv_sec - start_time.tv_sec;
|
|
}
|
|
|
|
destroy_window(window);
|
|
destroy_display(display);
|
|
|
|
return 0;
|
|
}
|