EGLStream implementation in Xwayland keeps a list of pending streams for a window. If the windows's pixmap is destroyed while there is a pending stream, the pending stream will point to freed memory once the callback is triggered. Make sure to cancel the pending stream if there's one when the pixmap is destroyed. v2: * Use xorg_list_for_each_entry() instead of the safe variant (Michel Dänzer <mdaenzer@redhat.com>) Signed-off-by: Olivier Fourdan <ofourdan@redhat.com> Tested-by: Karol Szuster <karolsz9898@gmail.com> Acked-by: Michel Dänzer <mdaenzer@redhat.com> Closes https://gitlab.freedesktop.org/xorg/xserver/-/issues/1096
950 lines
30 KiB
C
950 lines
30 KiB
C
/*
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* Copyright © 2017 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including
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* the 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
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Lyude Paul <lyude@redhat.com>
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*
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*/
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#include <xwayland-config.h>
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#define MESA_EGL_NO_X11_HEADERS
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#define EGL_NO_X11
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#include <glamor_egl.h>
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#include <glamor.h>
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#include <glamor_transform.h>
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#include <glamor_transfer.h>
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#include <xf86drm.h>
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#include <epoxy/egl.h>
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#include "xwayland-glamor.h"
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#include "xwayland-pixmap.h"
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#include "xwayland-screen.h"
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#include "xwayland-window.h"
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#include "wayland-eglstream-client-protocol.h"
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#include "wayland-eglstream-controller-client-protocol.h"
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struct xwl_eglstream_pending_stream {
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PixmapPtr pixmap;
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WindowPtr window;
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struct xwl_pixmap *xwl_pixmap;
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struct wl_callback *cb;
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Bool is_valid;
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struct xorg_list link;
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};
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struct xwl_eglstream_private {
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EGLDeviceEXT egl_device;
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struct wl_eglstream_display *display;
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struct wl_eglstream_controller *controller;
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uint32_t display_caps;
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EGLConfig config;
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SetWindowPixmapProcPtr SetWindowPixmap;
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struct xorg_list pending_streams;
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Bool have_egl_damage;
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GLint blit_prog;
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GLuint blit_vao;
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GLuint blit_vbo;
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GLuint blit_is_rgba_pos;
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};
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struct xwl_pixmap {
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struct wl_buffer *buffer;
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struct xwl_screen *xwl_screen;
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EGLStreamKHR stream;
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EGLSurface surface;
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};
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static DevPrivateKeyRec xwl_eglstream_private_key;
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static DevPrivateKeyRec xwl_eglstream_window_private_key;
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static inline struct xwl_eglstream_private *
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xwl_eglstream_get(struct xwl_screen *xwl_screen)
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{
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return dixLookupPrivate(&xwl_screen->screen->devPrivates,
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&xwl_eglstream_private_key);
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}
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static inline struct xwl_eglstream_pending_stream *
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xwl_eglstream_window_get_pending(WindowPtr window)
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{
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return dixLookupPrivate(&window->devPrivates,
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&xwl_eglstream_window_private_key);
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}
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static inline void
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xwl_eglstream_window_set_pending(WindowPtr window,
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struct xwl_eglstream_pending_stream *stream)
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{
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dixSetPrivate(&window->devPrivates,
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&xwl_eglstream_window_private_key, stream);
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}
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static GLint
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xwl_eglstream_compile_glsl_prog(GLenum type, const char *source)
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{
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GLint ok;
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GLint prog;
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prog = glCreateShader(type);
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glShaderSource(prog, 1, (const GLchar **) &source, NULL);
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glCompileShader(prog);
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glGetShaderiv(prog, GL_COMPILE_STATUS, &ok);
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if (!ok) {
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GLchar *info;
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GLint size;
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glGetShaderiv(prog, GL_INFO_LOG_LENGTH, &size);
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info = malloc(size);
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if (info) {
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glGetShaderInfoLog(prog, size, NULL, info);
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ErrorF("Failed to compile %s: %s\n",
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type == GL_FRAGMENT_SHADER ? "FS" : "VS", info);
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ErrorF("Program source:\n%s", source);
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free(info);
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}
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else
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ErrorF("Failed to get shader compilation info.\n");
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FatalError("GLSL compile failure\n");
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}
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return prog;
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}
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static GLuint
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xwl_eglstream_build_glsl_prog(GLuint vs, GLuint fs)
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{
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GLint ok;
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GLuint prog;
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prog = glCreateProgram();
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glAttachShader(prog, vs);
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glAttachShader(prog, fs);
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glLinkProgram(prog);
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glGetProgramiv(prog, GL_LINK_STATUS, &ok);
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if (!ok) {
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GLchar *info;
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GLint size;
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glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &size);
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info = malloc(size);
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glGetProgramInfoLog(prog, size, NULL, info);
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ErrorF("Failed to link: %s\n", info);
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FatalError("GLSL link failure\n");
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}
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return prog;
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}
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static void
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xwl_eglstream_cleanup(struct xwl_screen *xwl_screen)
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{
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struct xwl_eglstream_private *xwl_eglstream =
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xwl_eglstream_get(xwl_screen);
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if (xwl_eglstream->display)
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wl_eglstream_display_destroy(xwl_eglstream->display);
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if (xwl_eglstream->controller)
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wl_eglstream_controller_destroy(xwl_eglstream->controller);
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if (xwl_eglstream->blit_prog) {
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glDeleteProgram(xwl_eglstream->blit_prog);
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glDeleteBuffers(1, &xwl_eglstream->blit_vbo);
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}
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free(xwl_eglstream);
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}
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static Bool
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xwl_glamor_egl_supports_device_probing(void)
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{
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return epoxy_has_egl_extension(NULL, "EGL_EXT_device_base");
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}
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static void **
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xwl_glamor_egl_get_devices(int *num_devices)
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{
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EGLDeviceEXT *devices, *tmp;
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Bool ret;
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int drm_dev_count = 0;
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int i;
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if (!xwl_glamor_egl_supports_device_probing())
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return NULL;
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/* Get the number of devices */
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ret = eglQueryDevicesEXT(0, NULL, num_devices);
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if (!ret || *num_devices < 1)
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return NULL;
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devices = calloc(*num_devices, sizeof(EGLDeviceEXT));
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if (!devices)
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return NULL;
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ret = eglQueryDevicesEXT(*num_devices, devices, num_devices);
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if (!ret)
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goto error;
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/* We're only ever going to care about devices that support
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* EGL_EXT_device_drm, so filter out the ones that don't
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*/
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for (i = 0; i < *num_devices; i++) {
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const char *extension_str =
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eglQueryDeviceStringEXT(devices[i], EGL_EXTENSIONS);
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if (!epoxy_extension_in_string(extension_str, "EGL_EXT_device_drm"))
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continue;
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devices[drm_dev_count++] = devices[i];
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}
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if (!drm_dev_count)
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goto error;
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*num_devices = drm_dev_count;
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tmp = realloc(devices, sizeof(EGLDeviceEXT) * drm_dev_count);
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if (!tmp)
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goto error;
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devices = tmp;
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return devices;
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error:
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free(devices);
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return NULL;
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}
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static Bool
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xwl_glamor_egl_device_has_egl_extensions(void *device,
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const char **ext_list, size_t size)
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{
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EGLDisplay egl_display;
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int i;
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Bool has_exts = TRUE;
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egl_display = glamor_egl_get_display(EGL_PLATFORM_DEVICE_EXT, device);
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if (!egl_display || !eglInitialize(egl_display, NULL, NULL))
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return FALSE;
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for (i = 0; i < size; i++) {
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if (!epoxy_has_egl_extension(egl_display, ext_list[i])) {
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has_exts = FALSE;
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break;
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}
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}
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eglTerminate(egl_display);
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return has_exts;
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}
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static void
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xwl_eglstream_unref_pixmap_stream(struct xwl_pixmap *xwl_pixmap)
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{
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struct xwl_screen *xwl_screen = xwl_pixmap->xwl_screen;
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/* If we're using this stream in the current egl context, unbind it so the
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* driver doesn't keep it around until the next eglMakeCurrent()
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* don't have to keep it around until something else changes the surface
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*/
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xwl_glamor_egl_make_current(xwl_screen);
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if (eglGetCurrentSurface(EGL_READ) == xwl_pixmap->surface ||
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eglGetCurrentSurface(EGL_DRAW) == xwl_pixmap->surface) {
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eglMakeCurrent(xwl_screen->egl_display,
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EGL_NO_SURFACE, EGL_NO_SURFACE,
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xwl_screen->egl_context);
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}
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if (xwl_pixmap->surface)
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eglDestroySurface(xwl_screen->egl_display, xwl_pixmap->surface);
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eglDestroyStreamKHR(xwl_screen->egl_display, xwl_pixmap->stream);
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wl_buffer_destroy(xwl_pixmap->buffer);
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free(xwl_pixmap);
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}
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static void
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xwl_glamor_eglstream_del_pending_stream_cb(struct xwl_pixmap *xwl_pixmap)
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{
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struct xwl_eglstream_private *xwl_eglstream =
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xwl_eglstream_get(xwl_pixmap->xwl_screen);
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struct xwl_eglstream_pending_stream *pending;
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xorg_list_for_each_entry(pending,
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&xwl_eglstream->pending_streams, link) {
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if (pending->xwl_pixmap == xwl_pixmap) {
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wl_callback_destroy(pending->cb);
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xwl_eglstream_window_set_pending(pending->window, NULL);
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xorg_list_del(&pending->link);
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free(pending);
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break;
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}
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}
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}
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static Bool
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xwl_glamor_eglstream_destroy_pixmap(PixmapPtr pixmap)
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{
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struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
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if (xwl_pixmap && pixmap->refcnt == 1) {
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xwl_glamor_eglstream_del_pending_stream_cb(xwl_pixmap);
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xwl_pixmap_del_buffer_release_cb(pixmap);
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xwl_eglstream_unref_pixmap_stream(xwl_pixmap);
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}
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return glamor_destroy_pixmap(pixmap);
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}
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static struct wl_buffer *
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xwl_glamor_eglstream_get_wl_buffer_for_pixmap(PixmapPtr pixmap,
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Bool *created)
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{
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/* XXX created? */
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return xwl_pixmap_get(pixmap)->buffer;
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}
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static void
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xwl_eglstream_set_window_pixmap(WindowPtr window, PixmapPtr pixmap)
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{
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struct xwl_screen *xwl_screen = xwl_screen_get(window->drawable.pScreen);
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struct xwl_eglstream_private *xwl_eglstream =
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xwl_eglstream_get(xwl_screen);
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struct xwl_eglstream_pending_stream *pending;
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pending = xwl_eglstream_window_get_pending(window);
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if (pending) {
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/* The pixmap for this window has changed before the compositor
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* finished attaching the consumer for the window's pixmap's original
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* eglstream. A producer can no longer be attached, so the stream's
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* useless
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*/
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pending->is_valid = FALSE;
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}
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xwl_screen->screen->SetWindowPixmap = xwl_eglstream->SetWindowPixmap;
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(*xwl_screen->screen->SetWindowPixmap)(window, pixmap);
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xwl_eglstream->SetWindowPixmap = xwl_screen->screen->SetWindowPixmap;
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xwl_screen->screen->SetWindowPixmap = xwl_eglstream_set_window_pixmap;
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}
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/* Because we run asynchronously with our wayland compositor, it's possible
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* that an X client event could cause us to begin creating a stream for a
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* pixmap/window combo before the stream for the pixmap this window
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* previously used has been fully initialized. An example:
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*
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* - Start processing X client events.
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* - X window receives resize event, causing us to create a new pixmap and
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* begin creating the corresponding eglstream. This pixmap is known as
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* pixmap A.
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* - X window receives another resize event, and again changes its current
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* pixmap causing us to create another corresponding eglstream for the same
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* window. This pixmap is known as pixmap B.
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* - Start handling events from the wayland compositor.
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*
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* Since both pixmap A and B will have scheduled wl_display_sync events to
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* indicate when their respective streams are connected, we will receive each
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* callback in the original order the pixmaps were created. This means the
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* following would happen:
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*
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* - Receive pixmap A's stream callback, attach its stream to the surface of
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* the window that just orphaned it.
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* - Receive pixmap B's stream callback, fall over and fail because the
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* window's surface now incorrectly has pixmap A's stream attached to it.
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*
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* We work around this problem by keeping a queue of pending streams, and
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* only allowing one queue entry to exist for each window. In the scenario
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* listed above, this should happen:
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*
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* - Begin processing X events...
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* - A window is resized, causing us to add an eglstream (known as eglstream
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* A) waiting for its consumer to finish attachment to be added to the
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* queue.
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* - Resize on same window happens. We invalidate the previously pending
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* stream and add another one to the pending queue (known as eglstream B).
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* - Begin processing Wayland events...
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* - Receive invalidated callback from compositor for eglstream A, destroy
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* stream.
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* - Receive callback from compositor for eglstream B, create producer.
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* - Success!
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*/
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static void
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xwl_eglstream_consumer_ready_callback(void *data,
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struct wl_callback *callback,
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uint32_t time)
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{
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struct xwl_screen *xwl_screen = data;
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struct xwl_eglstream_private *xwl_eglstream =
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xwl_eglstream_get(xwl_screen);
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struct xwl_pixmap *xwl_pixmap;
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struct xwl_eglstream_pending_stream *pending;
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Bool found = FALSE;
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wl_callback_destroy(callback);
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xorg_list_for_each_entry(pending, &xwl_eglstream->pending_streams, link) {
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if (pending->cb == callback) {
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found = TRUE;
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break;
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}
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}
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assert(found);
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if (!pending->is_valid) {
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xwl_eglstream_unref_pixmap_stream(pending->xwl_pixmap);
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goto out;
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}
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xwl_glamor_egl_make_current(xwl_screen);
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xwl_pixmap = pending->xwl_pixmap;
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xwl_pixmap->surface = eglCreateStreamProducerSurfaceKHR(
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xwl_screen->egl_display, xwl_eglstream->config,
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xwl_pixmap->stream, (int[]) {
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EGL_WIDTH, pending->pixmap->drawable.width,
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EGL_HEIGHT, pending->pixmap->drawable.height,
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EGL_NONE
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});
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DebugF("eglstream: win %d completes eglstream for pixmap %p, congrats!\n",
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pending->window->drawable.id, pending->pixmap);
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out:
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xwl_eglstream_window_set_pending(pending->window, NULL);
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xorg_list_del(&pending->link);
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free(pending);
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}
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static const struct wl_callback_listener consumer_ready_listener = {
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xwl_eglstream_consumer_ready_callback
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};
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static void
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xwl_eglstream_queue_pending_stream(struct xwl_screen *xwl_screen,
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WindowPtr window, PixmapPtr pixmap)
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{
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struct xwl_eglstream_private *xwl_eglstream =
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xwl_eglstream_get(xwl_screen);
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struct xwl_eglstream_pending_stream *pending_stream;
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#ifdef DEBUG
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if (!xwl_eglstream_window_get_pending(window))
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DebugF("eglstream: win %d begins new eglstream for pixmap %p\n",
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window->drawable.id, pixmap);
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else
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DebugF("eglstream: win %d interrupts and replaces pending eglstream for pixmap %p\n",
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window->drawable.id, pixmap);
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#endif
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pending_stream = malloc(sizeof(*pending_stream));
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pending_stream->window = window;
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pending_stream->pixmap = pixmap;
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pending_stream->xwl_pixmap = xwl_pixmap_get(pixmap);
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pending_stream->is_valid = TRUE;
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xorg_list_init(&pending_stream->link);
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xorg_list_add(&pending_stream->link, &xwl_eglstream->pending_streams);
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xwl_eglstream_window_set_pending(window, pending_stream);
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pending_stream->cb = wl_display_sync(xwl_screen->display);
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wl_callback_add_listener(pending_stream->cb, &consumer_ready_listener,
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xwl_screen);
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}
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static void
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xwl_eglstream_buffer_release_callback(void *data)
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{
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/* drop the reference we took in post_damage, freeing if necessary */
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dixDestroyPixmap(data, 0);
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}
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|
|
static const struct wl_buffer_listener xwl_eglstream_buffer_release_listener = {
|
|
xwl_pixmap_buffer_release_cb,
|
|
};
|
|
|
|
static void
|
|
xwl_eglstream_create_pending_stream(struct xwl_screen *xwl_screen,
|
|
WindowPtr window, PixmapPtr pixmap)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
struct xwl_pixmap *xwl_pixmap;
|
|
struct xwl_window *xwl_window = xwl_window_from_window(window);
|
|
struct wl_array stream_attribs;
|
|
int stream_fd = -1;
|
|
|
|
xwl_pixmap = calloc(sizeof(*xwl_pixmap), 1);
|
|
if (!xwl_pixmap)
|
|
FatalError("Not enough memory to create pixmap\n");
|
|
xwl_pixmap_set_private(pixmap, xwl_pixmap);
|
|
|
|
xwl_glamor_egl_make_current(xwl_screen);
|
|
|
|
xwl_pixmap->xwl_screen = xwl_screen;
|
|
xwl_pixmap->stream = eglCreateStreamKHR(xwl_screen->egl_display, NULL);
|
|
stream_fd = eglGetStreamFileDescriptorKHR(xwl_screen->egl_display,
|
|
xwl_pixmap->stream);
|
|
|
|
wl_array_init(&stream_attribs);
|
|
xwl_pixmap->buffer =
|
|
wl_eglstream_display_create_stream(xwl_eglstream->display,
|
|
pixmap->drawable.width,
|
|
pixmap->drawable.height,
|
|
stream_fd,
|
|
WL_EGLSTREAM_HANDLE_TYPE_FD,
|
|
&stream_attribs);
|
|
|
|
wl_buffer_add_listener(xwl_pixmap->buffer,
|
|
&xwl_eglstream_buffer_release_listener,
|
|
pixmap);
|
|
|
|
xwl_pixmap_set_buffer_release_cb(pixmap,
|
|
xwl_eglstream_buffer_release_callback,
|
|
pixmap);
|
|
|
|
wl_eglstream_controller_attach_eglstream_consumer(
|
|
xwl_eglstream->controller, xwl_window->surface, xwl_pixmap->buffer);
|
|
|
|
xwl_eglstream_queue_pending_stream(xwl_screen, window, pixmap);
|
|
|
|
close(stream_fd);
|
|
}
|
|
|
|
static Bool
|
|
xwl_glamor_eglstream_allow_commits(struct xwl_window *xwl_window)
|
|
{
|
|
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
|
|
struct xwl_eglstream_pending_stream *pending =
|
|
xwl_eglstream_window_get_pending(xwl_window->window);
|
|
PixmapPtr pixmap =
|
|
(*xwl_screen->screen->GetWindowPixmap)(xwl_window->window);
|
|
struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
|
|
|
|
if (xwl_pixmap) {
|
|
if (pending) {
|
|
/* Wait for the compositor to finish connecting the consumer for
|
|
* this eglstream */
|
|
if (pending->is_valid)
|
|
return FALSE;
|
|
|
|
/* The pixmap for this window was changed before the compositor
|
|
* finished connecting the eglstream for the window's previous
|
|
* pixmap. Begin creating a new eglstream. */
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/* Glamor pixmap has no backing stream yet; begin making one and disallow
|
|
* commits until then
|
|
*/
|
|
xwl_eglstream_create_pending_stream(xwl_screen, xwl_window->window,
|
|
pixmap);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
xwl_glamor_eglstream_post_damage(struct xwl_window *xwl_window,
|
|
PixmapPtr pixmap, RegionPtr region)
|
|
{
|
|
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
|
|
BoxPtr box = RegionExtents(region);
|
|
EGLint egl_damage[] = {
|
|
box->x1, box->y1,
|
|
box->x2 - box->x1, box->y2 - box->y1
|
|
};
|
|
GLint saved_vao;
|
|
|
|
/* Unbind the framebuffer BEFORE binding the EGLSurface, otherwise we
|
|
* won't actually draw to it
|
|
*/
|
|
xwl_glamor_egl_make_current(xwl_screen);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
|
|
if (eglGetCurrentSurface(EGL_READ) != xwl_pixmap->surface ||
|
|
eglGetCurrentSurface(EGL_DRAW) != xwl_pixmap->surface)
|
|
eglMakeCurrent(xwl_screen->egl_display,
|
|
xwl_pixmap->surface, xwl_pixmap->surface,
|
|
xwl_screen->egl_context);
|
|
|
|
/* Save current GL state */
|
|
glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &saved_vao);
|
|
|
|
/* Setup our GL state */
|
|
glUseProgram(xwl_eglstream->blit_prog);
|
|
glViewport(0, 0, pixmap->drawable.width, pixmap->drawable.height);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindVertexArray(xwl_eglstream->blit_vao);
|
|
glBindTexture(GL_TEXTURE_2D, glamor_get_pixmap_texture(pixmap));
|
|
|
|
glUniform1i(xwl_eglstream->blit_is_rgba_pos,
|
|
pixmap->drawable.depth >= 32);
|
|
|
|
/* Blit rendered image into EGLStream surface */
|
|
glDrawBuffer(GL_BACK);
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
|
|
|
|
if (xwl_eglstream->have_egl_damage)
|
|
eglSwapBuffersWithDamageKHR(xwl_screen->egl_display,
|
|
xwl_pixmap->surface, egl_damage, 1);
|
|
else
|
|
eglSwapBuffers(xwl_screen->egl_display, xwl_pixmap->surface);
|
|
|
|
/* Restore previous state */
|
|
glBindVertexArray(saved_vao);
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
|
|
/* hang onto the pixmap until the compositor has released it */
|
|
pixmap->refcnt++;
|
|
}
|
|
|
|
static void
|
|
xwl_eglstream_display_handle_caps(void *data,
|
|
struct wl_eglstream_display *disp,
|
|
int32_t caps)
|
|
{
|
|
xwl_eglstream_get(data)->display_caps = caps;
|
|
}
|
|
|
|
static void
|
|
xwl_eglstream_display_handle_swapinterval_override(void *data,
|
|
struct wl_eglstream_display *disp,
|
|
int32_t swapinterval,
|
|
struct wl_buffer *stream)
|
|
{
|
|
}
|
|
|
|
const struct wl_eglstream_display_listener eglstream_display_listener = {
|
|
.caps = xwl_eglstream_display_handle_caps,
|
|
.swapinterval_override = xwl_eglstream_display_handle_swapinterval_override,
|
|
};
|
|
|
|
static Bool
|
|
xwl_glamor_eglstream_init_wl_registry(struct xwl_screen *xwl_screen,
|
|
struct wl_registry *wl_registry,
|
|
uint32_t id, const char *name,
|
|
uint32_t version)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
|
|
if (strcmp(name, "wl_eglstream_display") == 0) {
|
|
xwl_eglstream->display = wl_registry_bind(
|
|
wl_registry, id, &wl_eglstream_display_interface, version);
|
|
|
|
wl_eglstream_display_add_listener(xwl_eglstream->display,
|
|
&eglstream_display_listener,
|
|
xwl_screen);
|
|
return TRUE;
|
|
} else if (strcmp(name, "wl_eglstream_controller") == 0) {
|
|
xwl_eglstream->controller = wl_registry_bind(
|
|
wl_registry, id, &wl_eglstream_controller_interface, version);
|
|
return TRUE;
|
|
}
|
|
|
|
/* no match */
|
|
return FALSE;
|
|
}
|
|
|
|
static Bool
|
|
xwl_glamor_eglstream_has_wl_interfaces(struct xwl_screen *xwl_screen)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
|
|
if (xwl_eglstream->display == NULL) {
|
|
ErrorF("glamor: 'wl_eglstream_display' not supported\n");
|
|
return FALSE;
|
|
}
|
|
|
|
if (xwl_eglstream->controller == NULL) {
|
|
ErrorF("glamor: 'wl_eglstream_controller' not supported\n");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static inline void
|
|
xwl_eglstream_init_shaders(struct xwl_screen *xwl_screen)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
GLint fs, vs, attrib;
|
|
GLuint vbo;
|
|
|
|
const char *blit_vs_src =
|
|
"attribute vec2 texcoord;\n"
|
|
"attribute vec2 position;\n"
|
|
"varying vec2 t;\n"
|
|
"void main() {\n"
|
|
" t = texcoord;\n"
|
|
" gl_Position = vec4(position, 0, 1);\n"
|
|
"}";
|
|
|
|
const char *blit_fs_src =
|
|
"varying vec2 t;\n"
|
|
"uniform sampler2D s;\n"
|
|
"uniform bool is_rgba;\n"
|
|
"void main() {\n"
|
|
" if (is_rgba)\n"
|
|
" gl_FragColor = texture2D(s, t);\n"
|
|
" else\n"
|
|
" gl_FragColor = vec4(texture2D(s, t).rgb, 1.0);\n"
|
|
"}";
|
|
|
|
static const float position[] = {
|
|
/* position */
|
|
-1, -1,
|
|
1, -1,
|
|
1, 1,
|
|
-1, 1,
|
|
/* texcoord */
|
|
0, 1,
|
|
1, 1,
|
|
1, 0,
|
|
0, 0,
|
|
};
|
|
|
|
vs = xwl_eglstream_compile_glsl_prog(GL_VERTEX_SHADER, blit_vs_src);
|
|
fs = xwl_eglstream_compile_glsl_prog(GL_FRAGMENT_SHADER, blit_fs_src);
|
|
|
|
xwl_eglstream->blit_prog = xwl_eglstream_build_glsl_prog(vs, fs);
|
|
glDeleteShader(vs);
|
|
glDeleteShader(fs);
|
|
|
|
/* Create the blitter's vao */
|
|
glGenVertexArrays(1, &xwl_eglstream->blit_vao);
|
|
glBindVertexArray(xwl_eglstream->blit_vao);
|
|
|
|
/* Set the data for both position and texcoord in the vbo */
|
|
glGenBuffers(1, &vbo);
|
|
glBindBuffer(GL_ARRAY_BUFFER, vbo);
|
|
glBufferData(GL_ARRAY_BUFFER, sizeof(position), position, GL_STATIC_DRAW);
|
|
xwl_eglstream->blit_vbo = vbo;
|
|
|
|
/* Define each shader attribute's data location in our vbo */
|
|
attrib = glGetAttribLocation(xwl_eglstream->blit_prog, "position");
|
|
glVertexAttribPointer(attrib, 2, GL_FLOAT, TRUE, 0, NULL);
|
|
glEnableVertexAttribArray(attrib);
|
|
|
|
attrib = glGetAttribLocation(xwl_eglstream->blit_prog, "texcoord");
|
|
glVertexAttribPointer(attrib, 2, GL_FLOAT, TRUE, 0,
|
|
(void*)(sizeof(float) * 8));
|
|
glEnableVertexAttribArray(attrib);
|
|
|
|
/* Save the location of uniforms we'll set later */
|
|
xwl_eglstream->blit_is_rgba_pos =
|
|
glGetUniformLocation(xwl_eglstream->blit_prog, "is_rgba");
|
|
}
|
|
|
|
static Bool
|
|
xwl_glamor_eglstream_init_egl(struct xwl_screen *xwl_screen)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
EGLConfig config;
|
|
const EGLint attrib_list[] = {
|
|
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR,
|
|
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
|
|
EGL_CONTEXT_MAJOR_VERSION_KHR,
|
|
GLAMOR_GL_CORE_VER_MAJOR,
|
|
EGL_CONTEXT_MINOR_VERSION_KHR,
|
|
GLAMOR_GL_CORE_VER_MINOR,
|
|
EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
|
|
EGL_NONE
|
|
};
|
|
const EGLint config_attribs[] = {
|
|
EGL_SURFACE_TYPE, EGL_STREAM_BIT_KHR,
|
|
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
|
|
EGL_RED_SIZE, 8,
|
|
EGL_GREEN_SIZE, 8,
|
|
EGL_BLUE_SIZE, 8,
|
|
EGL_ALPHA_SIZE, 8,
|
|
EGL_NONE,
|
|
};
|
|
int n;
|
|
|
|
xwl_screen->egl_display = glamor_egl_get_display(
|
|
EGL_PLATFORM_DEVICE_EXT, xwl_eglstream->egl_device);
|
|
if (!xwl_screen->egl_display)
|
|
goto error;
|
|
|
|
if (!eglInitialize(xwl_screen->egl_display, NULL, NULL)) {
|
|
xwl_screen->egl_display = NULL;
|
|
goto error;
|
|
}
|
|
|
|
if (!epoxy_has_egl_extension(xwl_screen->egl_display,
|
|
"EGL_IMG_context_priority")) {
|
|
ErrorF("EGL_IMG_context_priority not available\n");
|
|
goto error;
|
|
}
|
|
|
|
eglChooseConfig(xwl_screen->egl_display, config_attribs, &config, 1, &n);
|
|
if (!n) {
|
|
ErrorF("No acceptable EGL configs found\n");
|
|
goto error;
|
|
}
|
|
|
|
xwl_eglstream->config = config;
|
|
#if 0
|
|
xwl_screen->formats =
|
|
XWL_FORMAT_RGB565 | XWL_FORMAT_XRGB8888 | XWL_FORMAT_ARGB8888;
|
|
#endif
|
|
|
|
eglBindAPI(EGL_OPENGL_API);
|
|
xwl_screen->egl_context = eglCreateContext(
|
|
xwl_screen->egl_display, config, EGL_NO_CONTEXT, attrib_list);
|
|
if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
|
|
ErrorF("Failed to create main EGL context: 0x%x\n", eglGetError());
|
|
goto error;
|
|
}
|
|
|
|
if (!eglMakeCurrent(xwl_screen->egl_display,
|
|
EGL_NO_SURFACE, EGL_NO_SURFACE,
|
|
xwl_screen->egl_context)) {
|
|
ErrorF("Failed to make EGL context current\n");
|
|
goto error;
|
|
}
|
|
|
|
xwl_eglstream->have_egl_damage =
|
|
epoxy_has_egl_extension(xwl_screen->egl_display,
|
|
"EGL_KHR_swap_buffers_with_damage");
|
|
if (!xwl_eglstream->have_egl_damage)
|
|
ErrorF("Driver lacks EGL_KHR_swap_buffers_with_damage, performance "
|
|
"will be affected\n");
|
|
|
|
xwl_eglstream_init_shaders(xwl_screen);
|
|
|
|
return TRUE;
|
|
error:
|
|
xwl_eglstream_cleanup(xwl_screen);
|
|
return FALSE;
|
|
}
|
|
|
|
static Bool
|
|
xwl_glamor_eglstream_init_screen(struct xwl_screen *xwl_screen)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream =
|
|
xwl_eglstream_get(xwl_screen);
|
|
ScreenPtr screen = xwl_screen->screen;
|
|
|
|
/* We can just let glamor handle CreatePixmap */
|
|
screen->DestroyPixmap = xwl_glamor_eglstream_destroy_pixmap;
|
|
|
|
xwl_eglstream->SetWindowPixmap = screen->SetWindowPixmap;
|
|
screen->SetWindowPixmap = xwl_eglstream_set_window_pixmap;
|
|
|
|
if (!dixRegisterPrivateKey(&xwl_eglstream_window_private_key,
|
|
PRIVATE_WINDOW, 0))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static EGLDeviceEXT
|
|
xwl_eglstream_get_device(struct xwl_screen *xwl_screen)
|
|
{
|
|
void **devices = NULL;
|
|
const char *exts[] = {
|
|
"EGL_KHR_stream",
|
|
"EGL_KHR_stream_producer_eglsurface",
|
|
};
|
|
int num_devices, i;
|
|
EGLDeviceEXT device = EGL_NO_DEVICE_EXT;
|
|
|
|
/* No device specified by the user, so find one ourselves */
|
|
devices = xwl_glamor_egl_get_devices(&num_devices);
|
|
if (!devices)
|
|
goto out;
|
|
|
|
for (i = 0; i < num_devices; i++) {
|
|
if (xwl_glamor_egl_device_has_egl_extensions(devices[i], exts,
|
|
ARRAY_SIZE(exts))) {
|
|
device = devices[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
free(devices);
|
|
out:
|
|
if (!device)
|
|
ErrorF("glamor: No eglstream capable devices found\n");
|
|
return device;
|
|
}
|
|
|
|
void
|
|
xwl_glamor_init_eglstream(struct xwl_screen *xwl_screen)
|
|
{
|
|
struct xwl_eglstream_private *xwl_eglstream;
|
|
EGLDeviceEXT egl_device;
|
|
|
|
xwl_screen->eglstream_backend.is_available = FALSE;
|
|
egl_device = xwl_eglstream_get_device(xwl_screen);
|
|
if (egl_device == EGL_NO_DEVICE_EXT)
|
|
return;
|
|
|
|
if (!dixRegisterPrivateKey(&xwl_eglstream_private_key, PRIVATE_SCREEN, 0))
|
|
return;
|
|
|
|
xwl_eglstream = calloc(1, sizeof(*xwl_eglstream));
|
|
if (!xwl_eglstream) {
|
|
ErrorF("Failed to allocate memory required to init EGLStream support\n");
|
|
return;
|
|
}
|
|
|
|
dixSetPrivate(&xwl_screen->screen->devPrivates,
|
|
&xwl_eglstream_private_key, xwl_eglstream);
|
|
|
|
xwl_eglstream->egl_device = egl_device;
|
|
xorg_list_init(&xwl_eglstream->pending_streams);
|
|
|
|
xwl_screen->eglstream_backend.init_egl = xwl_glamor_eglstream_init_egl;
|
|
xwl_screen->eglstream_backend.init_wl_registry = xwl_glamor_eglstream_init_wl_registry;
|
|
xwl_screen->eglstream_backend.has_wl_interfaces = xwl_glamor_eglstream_has_wl_interfaces;
|
|
xwl_screen->eglstream_backend.init_screen = xwl_glamor_eglstream_init_screen;
|
|
xwl_screen->eglstream_backend.get_wl_buffer_for_pixmap = xwl_glamor_eglstream_get_wl_buffer_for_pixmap;
|
|
xwl_screen->eglstream_backend.post_damage = xwl_glamor_eglstream_post_damage;
|
|
xwl_screen->eglstream_backend.allow_commits = xwl_glamor_eglstream_allow_commits;
|
|
xwl_screen->eglstream_backend.is_available = TRUE;
|
|
xwl_screen->eglstream_backend.backend_flags = XWL_EGL_BACKEND_NO_FLAG;
|
|
}
|