mirror of
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e381a159a7
Recently _cogl_swap_buffers_notify was added (in142b229c5c) so that Cogl would be notified when Clutter performs a swap buffers request for a given onscreen framebuffer. It was expected this would be required for the recent cogl_read_pixel optimization that was implemented (ref1bdb0e6e98) but in the end it wasn't used. Since it wasn't used in the end this patch removes the API.
665 lines
20 KiB
C
665 lines
20 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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* Authors:
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* Matthew Allum
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* Robert Bragg
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* Kristian Høgsberg
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <fcntl.h>
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#include <glib.h>
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#include <glib/gstdio.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <wayland-util.h>
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#include <wayland-client.h>
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#include <xf86drm.h>
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#include "clutter-stage-wayland.h"
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#include "clutter-wayland.h"
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#include "clutter-backend-wayland.h"
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#include "clutter-actor-private.h"
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#include "clutter-debug.h"
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#include "clutter-event.h"
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#include "clutter-enum-types.h"
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#include "clutter-feature.h"
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#include "clutter-main.h"
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#include "clutter-private.h"
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#include "clutter-stage-private.h"
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#include "cogl/cogl-framebuffer-private.h"
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static void
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wayland_swap_buffers (ClutterStageWayland *stage_wayland);
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static void clutter_stage_window_iface_init (ClutterStageWindowIface *iface);
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G_DEFINE_TYPE_WITH_CODE (ClutterStageWayland,
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_clutter_stage_wayland,
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G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_STAGE_WINDOW,
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clutter_stage_window_iface_init));
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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#define VISUAL_ARGB_PRE COGL_PIXEL_FORMAT_ARGB_8888_PRE
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#define VISUAL_ARGB COGL_PIXEL_FORMAT_ARGB_8888
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#define VISUAL_RGB COGL_PIXEL_FORMAT_RGB_888
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#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define VISUAL_ARGB_PRE COGL_PIXEL_FORMAT_BGRA_8888_PRE
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#define VISUAL_ARGB COGL_PIXEL_FORMAT_BGRA_8888
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#define VISUAL_RGB COGL_PIXEL_FORMAT_BGR_888
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#endif
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static struct wl_visual *
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get_visual (struct wl_display *display, CoglPixelFormat format)
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{
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switch (format)
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{
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case VISUAL_ARGB_PRE:
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return wl_display_get_premultiplied_argb_visual (display);
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case VISUAL_ARGB:
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return wl_display_get_argb_visual (display);
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case VISUAL_RGB:
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return wl_display_get_rgb_visual (display);
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default:
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return NULL;
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}
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}
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static ClutterStageWaylandWaylandBuffer *
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wayland_create_shm_buffer (ClutterBackendWayland *backend_wayland,
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ClutterGeometry *geom)
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{
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ClutterStageWaylandWaylandBufferSHM *buffer;
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struct wl_visual *visual;
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CoglHandle tex;
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CoglTextureFlags flags = COGL_TEXTURE_NONE; /* XXX: tweak flags? */
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CoglPixelFormat format = VISUAL_ARGB_PRE;
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int fd;
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gchar tmp[] = "/tmp/clutter-wayland-shm-XXXXXX";
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buffer = g_slice_new (ClutterStageWaylandWaylandBufferSHM);
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buffer->buffer.type = BUFFER_TYPE_SHM;
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tex = cogl_texture_new_with_size ((unsigned int)geom->width,
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(unsigned int)geom->height,
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flags, format);
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buffer->format = format;
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buffer->stride = cogl_texture_get_rowstride(tex);
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buffer->size = cogl_texture_get_data(tex, format, buffer->stride, NULL);
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buffer->buffer.tex = tex;
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fd = g_mkstemp_full(tmp, O_RDWR, 0600);
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ftruncate(fd, buffer->size);
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buffer->data = mmap(NULL, buffer->size, PROT_READ | PROT_WRITE,
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MAP_SHARED, fd, 0);
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g_unlink(tmp);
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visual = get_visual (backend_wayland->wayland_display, format);
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buffer->buffer.wayland_buffer =
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wl_shm_create_buffer (backend_wayland->wayland_shm,
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fd,
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geom->width,
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geom->height,
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buffer->stride, visual);
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close(fd);
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return &buffer->buffer;
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}
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static ClutterStageWaylandWaylandBuffer *
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wayland_create_drm_buffer (ClutterBackendWayland *backend_wayland,
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ClutterGeometry *geom)
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{
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EGLDisplay edpy = clutter_wayland_get_egl_display ();
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struct wl_visual *visual;
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EGLint name, stride;
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ClutterStageWaylandWaylandBufferDRM *buffer;
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EGLint image_attribs[] = {
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EGL_WIDTH, 0,
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EGL_HEIGHT, 0,
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EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
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EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA,
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EGL_NONE
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};
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buffer = g_slice_new (ClutterStageWaylandWaylandBufferDRM);
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buffer->buffer.type = BUFFER_TYPE_DRM;
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image_attribs[1] = geom->width;
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image_attribs[3] = geom->height;
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buffer->drm_image = backend_wayland->create_drm_image (edpy, image_attribs);
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glGenTextures (1, &buffer->texture);
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glBindTexture (GL_TEXTURE_2D, buffer->texture);
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backend_wayland->image_target_texture_2d (GL_TEXTURE_2D, buffer->drm_image);
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buffer->buffer.tex = cogl_texture_new_from_foreign (buffer->texture,
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GL_TEXTURE_2D,
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geom->width,
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geom->height,
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0,
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0,
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VISUAL_ARGB_PRE);
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backend_wayland->export_drm_image (edpy, buffer->drm_image,
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&name, NULL, &stride);
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visual = get_visual (backend_wayland->wayland_display, VISUAL_ARGB_PRE);
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buffer->buffer.wayland_buffer =
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wl_drm_create_buffer (backend_wayland->wayland_drm,
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name,
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geom->width,
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geom->height,
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stride, visual);
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return &buffer->buffer;
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}
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static ClutterStageWaylandWaylandBuffer *
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wayland_create_buffer (ClutterGeometry *geom)
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{
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ClutterBackend *backend = clutter_get_default_backend ();
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ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
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ClutterStageWaylandWaylandBuffer *buffer;
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cairo_rectangle_int_t rect;
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if (backend_wayland->drm_enabled &&
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backend_wayland->wayland_drm != NULL)
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buffer = wayland_create_drm_buffer (backend_wayland, geom);
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else if (backend_wayland->wayland_shm != NULL)
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buffer = wayland_create_shm_buffer (backend_wayland, geom);
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else
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return NULL;
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buffer->offscreen = cogl_offscreen_new_to_texture (buffer->tex);
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rect.x = geom->x;
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rect.y = geom->y;
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rect.width = geom->width;
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rect.height = geom->height;
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buffer->dirty_region = cairo_region_create_rectangle (&rect);
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return buffer;
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}
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static void
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wayland_free_shm_buffer (ClutterStageWaylandWaylandBuffer *generic_buffer)
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{
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ClutterStageWaylandWaylandBufferSHM *buffer;
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buffer = (ClutterStageWaylandWaylandBufferSHM *)generic_buffer;
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munmap(buffer->data, buffer->size);
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g_slice_free (ClutterStageWaylandWaylandBufferSHM, buffer);
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}
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static void
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wayland_free_drm_buffer (ClutterStageWaylandWaylandBuffer *generic_buffer)
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{
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ClutterBackend *backend = clutter_get_default_backend ();
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ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
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EGLDisplay edpy = clutter_wayland_get_egl_display ();
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ClutterStageWaylandWaylandBufferDRM *buffer;
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buffer = (ClutterStageWaylandWaylandBufferDRM *)generic_buffer;
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glDeleteTextures (1, &buffer->texture);
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backend_wayland->destroy_image (edpy, buffer->drm_image);
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g_slice_free (ClutterStageWaylandWaylandBufferDRM, buffer);
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}
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static void
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wayland_free_buffer (ClutterStageWaylandWaylandBuffer *buffer)
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{
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cogl_handle_unref (buffer->tex);
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wl_buffer_destroy (buffer->wayland_buffer);
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cogl_handle_unref (buffer->offscreen);
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if (buffer->type == BUFFER_TYPE_DRM)
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wayland_free_drm_buffer(buffer);
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else if (buffer->type == BUFFER_TYPE_SHM)
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wayland_free_shm_buffer(buffer);
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}
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static void
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clutter_stage_wayland_unrealize (ClutterStageWindow *stage_window)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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if (stage_wayland->front_buffer)
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{
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wayland_free_buffer (stage_wayland->front_buffer);
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stage_wayland->front_buffer = NULL;
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}
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if (stage_wayland->back_buffer)
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{
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wayland_free_buffer (stage_wayland->back_buffer);
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stage_wayland->back_buffer = NULL;
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}
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wayland_free_buffer (stage_wayland->pick_buffer);
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}
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static gboolean
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clutter_stage_wayland_realize (ClutterStageWindow *stage_window)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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ClutterBackend *backend = clutter_get_default_backend ();
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ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
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gfloat width, height;
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clutter_actor_get_size (CLUTTER_ACTOR (stage_wayland->wrapper),
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&width, &height);
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stage_wayland->pending_allocation.width = (gint)width;
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stage_wayland->pending_allocation.height = (gint)height;
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stage_wayland->allocation = stage_wayland->pending_allocation;
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stage_wayland->wayland_surface =
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wl_compositor_create_surface (backend_wayland->wayland_compositor);
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wl_surface_set_user_data (stage_wayland->wayland_surface, stage_wayland);
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stage_wayland->pick_buffer =
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wayland_create_buffer (&stage_wayland->allocation);
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return TRUE;
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}
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static int
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clutter_stage_wayland_get_pending_swaps (ClutterStageWindow *stage_window)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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return stage_wayland->pending_swaps;
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}
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static void
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clutter_stage_wayland_set_fullscreen (ClutterStageWindow *stage_window,
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gboolean fullscreen)
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{
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g_warning ("Stage of type '%s' do not support ClutterStage::set_fullscreen",
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G_OBJECT_TYPE_NAME (stage_window));
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}
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static void
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clutter_stage_wayland_set_title (ClutterStageWindow *stage_window,
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const gchar *title)
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{
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g_warning ("Stage of type '%s' do not support ClutterStage::set_title",
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G_OBJECT_TYPE_NAME (stage_window));
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}
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static void
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clutter_stage_wayland_set_cursor_visible (ClutterStageWindow *stage_window,
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gboolean cursor_visible)
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{
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g_warning ("Stage of type '%s' do not support ClutterStage::set_cursor_visible",
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G_OBJECT_TYPE_NAME (stage_window));
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}
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static ClutterActor *
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clutter_stage_wayland_get_wrapper (ClutterStageWindow *stage_window)
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{
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return CLUTTER_ACTOR (CLUTTER_STAGE_WAYLAND (stage_window)->wrapper);
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}
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static void
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clutter_stage_wayland_show (ClutterStageWindow *stage_window,
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gboolean do_raise)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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clutter_actor_map (CLUTTER_ACTOR (stage_wayland->wrapper));
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}
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static void
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clutter_stage_wayland_hide (ClutterStageWindow *stage_window)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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clutter_actor_unmap (CLUTTER_ACTOR (stage_wayland->wrapper));
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}
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static void
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clutter_stage_wayland_get_geometry (ClutterStageWindow *stage_window,
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ClutterGeometry *geometry)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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if (geometry)
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{
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*geometry = stage_wayland->allocation;
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}
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}
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static void
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clutter_stage_wayland_resize (ClutterStageWindow *stage_window,
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gint width,
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gint height)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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cairo_rectangle_int_t rect;
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fprintf (stderr, "resize %dx%d\n", width, height);
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stage_wayland->pending_allocation.width = width;
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stage_wayland->pending_allocation.height = height;
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/* FIXME: Shouldn't the stage repaint everything when it gets resized? */
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rect.x = stage_wayland->pending_allocation.x;
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rect.y = stage_wayland->pending_allocation.y;
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rect.width = stage_wayland->pending_allocation.width;
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rect.height = stage_wayland->pending_allocation.height;
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cairo_region_union_rectangle (stage_wayland->repaint_region, &rect);
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}
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#define CAIRO_REGION_FULL ((cairo_region_t *) 1)
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static gboolean
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clutter_stage_wayland_has_redraw_clips (ClutterStageWindow *stage_window)
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{
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return TRUE;
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}
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static gboolean
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clutter_stage_wayland_ignoring_redraw_clips (ClutterStageWindow *stage_window)
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{
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return FALSE;
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}
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static void
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clutter_stage_wayland_add_redraw_clip (ClutterStageWindow *stage_window,
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ClutterGeometry *stage_clip)
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{
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ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
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cairo_rectangle_int_t rect;
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if (stage_clip == NULL)
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{
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rect.x = stage_wayland->allocation.x;
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rect.y = stage_wayland->allocation.y;
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rect.width = stage_wayland->allocation.width;
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rect.height = stage_wayland->allocation.height;
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}
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else
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{
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rect.x = stage_clip->x;
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rect.y = stage_clip->y;
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rect.width = stage_clip->width;
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rect.height = stage_clip->height;
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}
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if (stage_wayland->repaint_region == NULL)
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stage_wayland->repaint_region = cairo_region_create_rectangle (&rect);
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else
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cairo_region_union_rectangle (stage_wayland->repaint_region, &rect);
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}
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static void
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clutter_stage_window_iface_init (ClutterStageWindowIface *iface)
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{
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iface->realize = clutter_stage_wayland_realize;
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iface->unrealize = clutter_stage_wayland_unrealize;
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iface->get_pending_swaps = clutter_stage_wayland_get_pending_swaps;
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iface->set_fullscreen = clutter_stage_wayland_set_fullscreen;
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iface->set_title = clutter_stage_wayland_set_title;
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iface->set_cursor_visible = clutter_stage_wayland_set_cursor_visible;
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iface->get_wrapper = clutter_stage_wayland_get_wrapper;
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iface->get_geometry = clutter_stage_wayland_get_geometry;
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iface->resize = clutter_stage_wayland_resize;
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iface->show = clutter_stage_wayland_show;
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iface->hide = clutter_stage_wayland_hide;
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iface->add_redraw_clip = clutter_stage_wayland_add_redraw_clip;
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iface->has_redraw_clips = clutter_stage_wayland_has_redraw_clips;
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iface->ignoring_redraw_clips = clutter_stage_wayland_ignoring_redraw_clips;
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}
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static void
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_clutter_stage_wayland_class_init (ClutterStageWaylandClass *klass)
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{
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}
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static void
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_clutter_stage_wayland_init (ClutterStageWayland *stage_wayland)
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{
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stage_wayland->allocation.x = 0;
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stage_wayland->allocation.y = 0;
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stage_wayland->allocation.width = 640;
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stage_wayland->allocation.height = 480;
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stage_wayland->save_allocation = stage_wayland->allocation;
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}
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static void
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wayland_frame_callback (void *data, uint32_t _time)
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{
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ClutterStageWayland *stage_wayland = data;
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stage_wayland->pending_swaps--;
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}
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static void
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wayland_damage_buffer(ClutterStageWaylandWaylandBuffer *generic_buffer)
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{
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ClutterStageWaylandWaylandBufferSHM *buffer;
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int size;
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if (generic_buffer->type != BUFFER_TYPE_SHM)
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return;
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buffer = (ClutterStageWaylandWaylandBufferSHM *)generic_buffer;
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size = cogl_texture_get_data(buffer->buffer.tex, buffer->format,
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buffer->stride, NULL);
|
|
g_assert(size == (int)buffer->size);
|
|
|
|
(void) cogl_texture_get_data(buffer->buffer.tex, buffer->format,
|
|
buffer->stride, buffer->data);
|
|
|
|
}
|
|
|
|
static void
|
|
wayland_swap_buffers (ClutterStageWayland *stage_wayland)
|
|
{
|
|
ClutterBackend *backend = clutter_get_default_backend ();
|
|
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
|
|
ClutterStageWaylandWaylandBuffer *buffer;
|
|
|
|
buffer = stage_wayland->front_buffer;
|
|
stage_wayland->front_buffer = stage_wayland->back_buffer;
|
|
stage_wayland->back_buffer = buffer;
|
|
|
|
wayland_damage_buffer(stage_wayland->front_buffer);
|
|
|
|
wl_surface_attach (stage_wayland->wayland_surface,
|
|
stage_wayland->front_buffer->wayland_buffer,
|
|
/* 0,0 here is "relative to the old buffer," not absolute */
|
|
0, 0);
|
|
wl_surface_map_toplevel (stage_wayland->wayland_surface);
|
|
|
|
stage_wayland->pending_swaps++;
|
|
wl_display_frame_callback (backend_wayland->wayland_display,
|
|
wayland_frame_callback,
|
|
stage_wayland);
|
|
}
|
|
|
|
static void
|
|
_clutter_stage_wayland_repair_dirty(ClutterStageWayland *stage_wayland,
|
|
ClutterStage *stage)
|
|
{
|
|
CoglMaterial *outline = NULL;
|
|
CoglHandle vbo;
|
|
float vertices[8], texcoords[8];
|
|
CoglMatrix modelview;
|
|
cairo_region_t *dirty;
|
|
cairo_rectangle_int_t rect;
|
|
int i, count;
|
|
float width, height;
|
|
|
|
dirty = stage_wayland->back_buffer->dirty_region;
|
|
stage_wayland->back_buffer->dirty_region = NULL;
|
|
cairo_region_subtract (dirty, stage_wayland->repaint_region);
|
|
width = stage_wayland->allocation.width;
|
|
height = stage_wayland->allocation.height;
|
|
|
|
/* If this is the first time we render, there is no front buffer to
|
|
* copy back from, but then the dirty region not covered by the
|
|
* repaint should be empty, because we repaint the entire stage.
|
|
*
|
|
* assert(stage_wayland->front_buffer != NULL) ||
|
|
* cairo_region_is_empty(dirty);
|
|
*
|
|
* FIXME: in test-rotate, the stage never queues a full repaint
|
|
* initially, it's restricted to the paint box of it's rotating
|
|
* children.
|
|
*/
|
|
|
|
if (!stage_wayland->front_buffer)
|
|
return;
|
|
|
|
outline = cogl_material_new ();
|
|
cogl_material_set_layer (outline, 0, stage_wayland->front_buffer->tex);
|
|
count = cairo_region_num_rectangles (dirty);
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
cairo_region_get_rectangle (dirty, i, &rect);
|
|
vbo = cogl_vertex_buffer_new (4);
|
|
|
|
vertices[0] = rect.x - 1;
|
|
vertices[1] = rect.y - 1;
|
|
vertices[2] = rect.x + rect.width + 1;
|
|
vertices[3] = rect.y - 1;
|
|
vertices[4] = rect.x + rect.width + 1;
|
|
vertices[5] = rect.y + rect.height + 1;
|
|
vertices[6] = rect.x - 1;
|
|
vertices[7] = rect.y + rect.height + 1;
|
|
|
|
cogl_vertex_buffer_add (vbo,
|
|
"gl_Vertex",
|
|
2, /* n_components */
|
|
COGL_ATTRIBUTE_TYPE_FLOAT,
|
|
FALSE, /* normalized */
|
|
0, /* stride */
|
|
vertices);
|
|
|
|
texcoords[0] = vertices[0] / width;
|
|
texcoords[1] = vertices[1] / height;
|
|
texcoords[2] = vertices[2] / width;
|
|
texcoords[3] = vertices[3] / height;
|
|
texcoords[4] = vertices[4] / width;
|
|
texcoords[5] = vertices[5] / height;
|
|
texcoords[6] = vertices[6] / width;
|
|
texcoords[7] = vertices[7] / height;
|
|
|
|
cogl_vertex_buffer_add (vbo,
|
|
"gl_MultiTexCoord0",
|
|
2, /* n_components */
|
|
COGL_ATTRIBUTE_TYPE_FLOAT,
|
|
FALSE, /* normalized */
|
|
0, /* stride */
|
|
texcoords);
|
|
|
|
cogl_vertex_buffer_submit (vbo);
|
|
|
|
cogl_push_matrix ();
|
|
cogl_matrix_init_identity (&modelview);
|
|
_clutter_actor_apply_modelview_transform (CLUTTER_ACTOR (stage),
|
|
&modelview);
|
|
cogl_set_modelview_matrix (&modelview);
|
|
cogl_set_source (outline);
|
|
cogl_vertex_buffer_draw (vbo, COGL_VERTICES_MODE_TRIANGLE_FAN,
|
|
0 , 4);
|
|
cogl_pop_matrix ();
|
|
cogl_object_unref (vbo);
|
|
}
|
|
|
|
cairo_region_destroy (dirty);
|
|
}
|
|
|
|
void
|
|
_clutter_stage_wayland_repaint_region (ClutterStageWayland *stage_wayland,
|
|
ClutterStage *stage)
|
|
{
|
|
ClutterGeometry geom;
|
|
cairo_rectangle_int_t rect;
|
|
int i, count;
|
|
|
|
count = cairo_region_num_rectangles (stage_wayland->repaint_region);
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
cairo_region_get_rectangle (stage_wayland->repaint_region, i, &rect);
|
|
|
|
cogl_clip_push_window_rectangle (rect.x - 1, rect.y - 1,
|
|
rect.width + 2, rect.height + 2);
|
|
|
|
geom.x = rect.x;
|
|
geom.y = rect.y;
|
|
geom.width = rect.width;
|
|
geom.height = rect.height;
|
|
/* FIXME: We should pass geom in as second arg, but some actors
|
|
* cull themselves a little to much. Disable for now.*/
|
|
_clutter_stage_do_paint (stage, NULL);
|
|
|
|
cogl_clip_pop ();
|
|
}
|
|
}
|
|
|
|
void
|
|
_clutter_stage_wayland_redraw (ClutterStageWayland *stage_wayland,
|
|
ClutterStage *stage)
|
|
{
|
|
stage_wayland->allocation = stage_wayland->pending_allocation;
|
|
|
|
if (!stage_wayland->back_buffer)
|
|
stage_wayland->back_buffer =
|
|
wayland_create_buffer (&stage_wayland->allocation);
|
|
|
|
cogl_set_framebuffer (stage_wayland->back_buffer->offscreen);
|
|
_clutter_stage_maybe_setup_viewport (stage_wayland->wrapper);
|
|
|
|
_clutter_stage_wayland_repair_dirty (stage_wayland, stage);
|
|
|
|
_clutter_stage_wayland_repaint_region (stage_wayland, stage);
|
|
|
|
cogl_flush ();
|
|
glFlush ();
|
|
|
|
wayland_swap_buffers (stage_wayland);
|
|
|
|
if (stage_wayland->back_buffer)
|
|
stage_wayland->back_buffer->dirty_region = stage_wayland->repaint_region;
|
|
else
|
|
cairo_region_destroy (stage_wayland->repaint_region);
|
|
|
|
stage_wayland->repaint_region = NULL;
|
|
|
|
cogl_set_framebuffer (stage_wayland->pick_buffer->offscreen);
|
|
_clutter_stage_maybe_setup_viewport (stage_wayland->wrapper);
|
|
}
|