st/egl: Add wayland platform

2 files changed, 690 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/egl/wayland/native_wayland.c b/src/gallium/state_trackers/egl/wayland/native_wayland.c
new file mode 100644
index 00000000000..c526c599d08
--- /dev/null
+++ b/src/gallium/state_trackers/egl/wayland/native_wayland.c
@@ -0,0 +1,594 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.11
+ *
+ * Copyright (C) 2011 Benjamin Franzke <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "state_tracker/drm_driver.h"
+
+#include "egllog.h"
+
+#include "native_wayland.h"
+
+/* see get_drm_screen_name */
+#include <radeon_drm.h>
+#include "radeon/drm/radeon_drm_public.h"
+
+#include <wayland-client.h>
+#include "wayland-egl-priv.h"
+
+#include <xf86drm.h>
+
+static struct native_event_handler *wayland_event_handler;
+
+static void
+sync_callback(void *data)
+{
+   int *done = data;
+
+   *done = 1;
+}
+
+static void
+force_roundtrip(struct wl_display *display)
+{
+   int done = 0;
+
+   wl_display_sync_callback(display, sync_callback, &done);
+   wl_display_iterate(display, WL_DISPLAY_WRITABLE);
+   while (!done)
+      wl_display_iterate(display, WL_DISPLAY_READABLE);
+}
+
+static const struct native_config **
+wayland_display_get_configs (struct native_display *ndpy, int *num_configs)
+{
+   struct wayland_display *display = wayland_display(ndpy);
+   const struct native_config **configs;
+
+   if (!display->config) {
+      struct native_config *nconf;
+      enum pipe_format format;
+      display->config = CALLOC(1, sizeof(*display->config));
+      if (!display->config)
+         return NULL;
+      nconf = &display->config->base;
+
+      nconf->buffer_mask =
+         (1 << NATIVE_ATTACHMENT_FRONT_LEFT) |
+         (1 << NATIVE_ATTACHMENT_BACK_LEFT);
+
+      format = PIPE_FORMAT_B8G8R8X8_UNORM;
+
+      nconf->color_format = format;
+      nconf->window_bit = TRUE;
+      nconf->pixmap_bit = TRUE;
+   }
+
+   configs = MALLOC(sizeof(*configs));
+   if (configs) {
+      configs[0] = &display->config->base;
+      if (num_configs)
+         *num_configs = 1;
+   }
+
+   return configs;
+}
+
+static int
+wayland_display_get_param(struct native_display *ndpy,
+                          enum native_param_type param)
+{
+   int val;
+
+   switch (param) {
+      case NATIVE_PARAM_USE_NATIVE_BUFFER:
+      case NATIVE_PARAM_PRESERVE_BUFFER:
+      case NATIVE_PARAM_MAX_SWAP_INTERVAL:
+      default:
+         val = 0;
+         break;
+   }
+
+   return val;
+}
+
+static boolean
+wayland_display_is_pixmap_supported(struct native_display *ndpy,
+                                    EGLNativePixmapType pix,
+                                    const struct native_config *nconf)
+{
+   /* all wl_egl_pixmaps are supported */
+
+   return TRUE;
+}
+
+static void 
+wayland_display_destroy(struct native_display *ndpy)
+{
+   struct wayland_display *display = wayland_display(ndpy);
+
+   if (display->config)
+      FREE(display->config);
+
+   if (display->base.screen)
+      display->base.screen->destroy(display->base.screen);
+
+   FREE(display);
+}
+
+
+static struct wl_buffer *
+wayland_create_buffer(struct wayland_surface *surface,
+                      enum native_attachment attachment)
+{
+   struct wayland_display *display = surface->display;
+   struct pipe_resource *resource;
+   struct winsys_handle wsh;
+   uint width, height;
+
+   resource = resource_surface_get_single_resource(surface->rsurf, attachment);
+   resource_surface_get_size(surface->rsurf, &width, &height);
+
+   wsh.type = DRM_API_HANDLE_TYPE_SHARED;
+   display->base.screen->resource_get_handle(display->base.screen, resource, &wsh);
+
+   pipe_resource_reference(&resource, NULL);
+
+   return wl_drm_create_buffer(display->dpy->drm, wsh.handle,
+                               width, height,
+                               wsh.stride, surface->win->visual);
+}
+
+static void
+wayland_pixmap_destroy(struct wl_egl_pixmap *egl_pixmap)
+{
+   struct pipe_resource *resource = egl_pixmap->driver_private;
+
+   assert(resource);
+
+   pipe_resource_reference(&resource, NULL);
+   
+   egl_pixmap->driver_private = NULL;
+   egl_pixmap->destroy = NULL;
+   egl_pixmap->name = 0;
+}
+
+static void
+wayland_pixmap_surface_intialize(struct wayland_surface *surface)
+{
+   struct native_display *ndpy = &surface->display->base;
+   struct pipe_resource *resource;
+   struct winsys_handle wsh;
+   const enum native_attachment front_natt = NATIVE_ATTACHMENT_FRONT_LEFT;
+
+   if (surface->pix->name > 0)
+      return;
+
+   resource = resource_surface_get_single_resource(surface->rsurf, front_natt);
+
+   wsh.type = DRM_API_HANDLE_TYPE_SHARED;
+   ndpy->screen->resource_get_handle(ndpy->screen, resource, &wsh);
+
+   surface->pix->name           = wsh.handle;
+   surface->pix->stride         = wsh.stride;
+   surface->pix->destroy        = wayland_pixmap_destroy;
+   surface->pix->driver_private = resource;
+}
+
+static void
+wayland_window_surface_handle_resize(struct wayland_surface *surface)
+{
+   int i;
+
+   if (resource_surface_set_size(surface->rsurf,
+       surface->win->width, surface->win->height)) {
+      for (i = 0; i < WL_BUFFER_COUNT; ++i) {
+         if (surface->buffer[i])
+            wl_buffer_destroy(surface->buffer[i]);
+         surface->buffer[i] = NULL;
+      }
+   }
+
+   surface->dx = surface->win->dx;
+   surface->dy = surface->win->dy;
+   surface->win->dx = 0;
+   surface->win->dy = 0;
+}
+
+static boolean
+wayland_surface_validate(struct native_surface *nsurf, uint attachment_mask,
+                         unsigned int *seq_num, struct pipe_resource **textures,
+                         int *width, int *height)
+{
+   struct wayland_surface *surface = wayland_surface(nsurf);
+
+   if (surface->type == WL_WINDOW_SURFACE)
+      wayland_window_surface_handle_resize(surface);
+
+   if (!resource_surface_add_resources(surface->rsurf, attachment_mask |
+                                       surface->attachment_mask))
+      return FALSE;
+
+   if (textures)
+      resource_surface_get_resources(surface->rsurf, textures, attachment_mask);
+
+   if (seq_num)
+      *seq_num = surface->sequence_number;
+
+   resource_surface_get_size(surface->rsurf, (uint *) width, (uint *) height);
+
+   if (surface->type == WL_PIXMAP_SURFACE)
+      wayland_pixmap_surface_intialize(surface);
+
+   return TRUE;
+}
+
+static void
+wayland_frame_callback(void *data, uint32_t time)
+{
+   struct wayland_surface *surface = data;
+
+   surface->block_swap_buffers = FALSE;
+}
+
+static INLINE void
+wayland_buffers_swap(struct wl_buffer **buffer,
+                     enum wayland_buffer_type buf1,
+                     enum wayland_buffer_type buf2)
+{
+   struct wl_buffer *tmp = buffer[buf1];
+   buffer[buf1] = buffer[buf2];
+   buffer[buf2] = tmp;
+}
+
+static boolean
+wayland_surface_swap_buffers(struct native_surface *nsurf)
+{
+   struct wayland_surface *surface = wayland_surface(nsurf);
+   struct wayland_display *display = surface->display;
+
+   while (surface->block_swap_buffers)
+      wl_display_iterate(display->dpy->display, WL_DISPLAY_READABLE);
+
+   surface->block_swap_buffers = TRUE;
+   wl_display_frame_callback(display->dpy->display, wayland_frame_callback,
+                             surface);
+
+   if (surface->type == WL_WINDOW_SURFACE) {
+      resource_surface_swap_buffers(surface->rsurf,
+       NATIVE_ATTACHMENT_FRONT_LEFT, NATIVE_ATTACHMENT_BACK_LEFT, FALSE);
+
+      wayland_buffers_swap(surface->buffer, WL_BUFFER_FRONT, WL_BUFFER_BACK);
+
+      if (surface->buffer[WL_BUFFER_FRONT] == NULL)
+         surface->buffer[WL_BUFFER_FRONT] =
+       wayland_create_buffer(surface, NATIVE_ATTACHMENT_FRONT_LEFT);
+
+      wl_surface_attach(surface->win->surface, surface->buffer[WL_BUFFER_FRONT],
+                        surface->dx, surface->dy);
+     
+      resource_surface_get_size(surface->rsurf,
+                                (uint *) &surface->win->attached_width,
+                                (uint *) &surface->win->attached_height);
+      surface->dx = 0;
+      surface->dy = 0;
+   }
+
+   surface->sequence_number++;
+   wayland_event_handler->invalid_surface(&display->base,
+        &surface->base, surface->sequence_number);
+
+   return TRUE;
+}
+
+static boolean
+wayland_surface_present(struct native_surface *nsurf,
+                        enum native_attachment natt,
+                        boolean preserve,
+                        uint swap_interval)
+{
+   struct wayland_surface *surface = wayland_surface(nsurf);
+   uint width, height;
+   boolean ret;
+
+   if (preserve || swap_interval)
+      return FALSE;
+
+   switch (natt) {
+   case NATIVE_ATTACHMENT_FRONT_LEFT:
+      ret = TRUE;
+      break;
+   case NATIVE_ATTACHMENT_BACK_LEFT:
+      ret = wayland_surface_swap_buffers(nsurf);
+      break;
+   default:
+      ret = FALSE;
+      break;
+   }
+
+   if (surface->type == WL_WINDOW_SURFACE) {
+      resource_surface_get_size(surface->rsurf, &width, &height);
+      wl_surface_damage(surface->win->surface, 0, 0, width, height);
+   }
+
+   return ret;
+}
+
+static void
+wayland_surface_wait(struct native_surface *nsurf)
+{
+   /* no-op */
+}
+
+static void
+wayland_surface_destroy(struct native_surface *nsurf)
+{
+   struct wayland_surface *surface = wayland_surface(nsurf);
+   enum wayland_buffer_type buffer;
+
+   for (buffer = 0; buffer < WL_BUFFER_COUNT; ++buffer) {
+      if (surface->buffer[buffer])
+         wl_buffer_destroy(surface->buffer[buffer]);
+   }
+
+   resource_surface_destroy(surface->rsurf);
+   FREE(surface);
+}
+
+static struct native_surface *
+wayland_create_pixmap_surface(struct native_display *ndpy,
+                              EGLNativePixmapType pix,
+                              const struct native_config *nconf)
+{
+   struct wayland_display *display = wayland_display(ndpy);
+   struct wayland_config *config = wayland_config(nconf);
+   struct wayland_surface *surface;
+   struct wl_egl_pixmap *egl_pixmap = (struct wl_egl_pixmap *) pix;
+   enum native_attachment natt = NATIVE_ATTACHMENT_FRONT_LEFT;
+
+   surface = CALLOC_STRUCT(wayland_surface);
+   if (!surface)
+      return NULL;
+
+   surface->display = display;
+   if (config)
+      surface->color_format = config->base.color_format;
+   else
+      surface->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
+
+   surface->type = WL_PIXMAP_SURFACE;
+   surface->pix = egl_pixmap;
+
+   surface->attachment_mask = (1 << NATIVE_ATTACHMENT_FRONT_LEFT);
+   
+   surface->rsurf = resource_surface_create(display->base.screen,
+           surface->color_format,
+           PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
+           PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT);
+
+   if (!surface->rsurf) {
+       FREE(surface);
+       return NULL;
+   }
+
+   resource_surface_set_size(surface->rsurf,
+                             egl_pixmap->width, egl_pixmap->height);
+
+   /* the pixmap is already allocated, so import it */
+   if (surface->pix->name > 0)
+      resource_surface_import_resource(surface->rsurf, natt,
+                                       surface->pix->driver_private);
+
+   surface->base.destroy = wayland_surface_destroy;
+   surface->base.present = wayland_surface_present;
+   surface->base.validate = wayland_surface_validate;
+   surface->base.wait = wayland_surface_wait;
+
+   return &surface->base;
+}
+
+static struct native_surface *
+wayland_create_window_surface(struct native_display *ndpy,
+                              EGLNativeWindowType win,
+                              const struct native_config *nconf)
+{
+   struct wayland_display *display = wayland_display(ndpy);
+   struct wayland_config *config = wayland_config(nconf);
+   struct wayland_surface *surface;
+
+   surface = CALLOC_STRUCT(wayland_surface);
+   if (!surface)
+      return NULL;
+
+   surface->display = display;
+   surface->color_format = config->base.color_format;
+
+   surface->win = (struct wl_egl_window *) win;
+
+   surface->block_swap_buffers = FALSE;
+   surface->type = WL_WINDOW_SURFACE;
+
+   surface->buffer[WL_BUFFER_FRONT] = NULL;
+   surface->buffer[WL_BUFFER_BACK] = NULL;
+   surface->attachment_mask = (1 << NATIVE_ATTACHMENT_FRONT_LEFT) |
+                              (1 << NATIVE_ATTACHMENT_BACK_LEFT);
+
+   surface->rsurf = resource_surface_create(display->base.screen,
+           surface->color_format,
+           PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
+           PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT);
+
+   if (!surface->rsurf) {
+       FREE(surface);
+       return NULL;
+   }
+
+   surface->base.destroy = wayland_surface_destroy;
+   surface->base.present = wayland_surface_present;
+   surface->base.validate = wayland_surface_validate;
+   surface->base.wait = wayland_surface_wait;
+
+   return &surface->base;
+}
+
+static const char *
+get_drm_screen_name(int fd, drmVersionPtr version)
+{
+   const char *name = version->name;
+
+   if (name && !strcmp(name, "radeon")) {
+      int chip_id;
+      struct drm_radeon_info info;
+
+      memset(&info, 0, sizeof(info));
+      info.request = RADEON_INFO_DEVICE_ID;
+      info.value = pointer_to_intptr(&chip_id);
+      if (drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)) != 0)
+         return NULL;
+
+      name = is_r3xx(chip_id) ? "r300" : "r600";
+   }
+
+   return name;
+}
+
+static boolean
+wayland_display_init_screen(struct native_display *ndpy)
+{
+   struct wayland_display *display = wayland_display(ndpy);
+   drmVersionPtr version;
+   const char *driver_name;
+
+   if (display->dpy->fd == -1)
+	   force_roundtrip(display->dpy->display);
+   if (display->dpy->fd == -1)
+	   return FALSE;
+
+   if (!display->dpy->authenticated)
+	   force_roundtrip(display->dpy->display);
+   if (!display->dpy->authenticated)
+	   return FALSE;
+
+   version = drmGetVersion(display->dpy->fd);
+   if (!version) {
+      _eglLog(_EGL_WARNING, "invalid fd %d", display->dpy->fd);
+      return FALSE;
+   }
+
+   /* FIXME: share this with native_drm or egl_dri2 */
+   driver_name = get_drm_screen_name(display->dpy->fd, version);
+
+   display->base.screen =
+      wayland_event_handler->new_drm_screen(&display->base,
+            driver_name, display->dpy->fd);
+   drmFreeVersion(version);
+
+   if (!display->base.screen) {
+      _eglLog(_EGL_WARNING, "failed to create DRM screen");
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+
+static void
+wayland_set_event_handler(struct native_event_handler *event_handler)
+{
+   wayland_event_handler = event_handler;
+}
+
+static struct pipe_resource *
+wayland_display_import_buffer(struct native_display *ndpy,
+                              const struct pipe_resource *templ,
+                              void *buf)
+{
+   return ndpy->screen->resource_from_handle(ndpy->screen,
+         templ, (struct winsys_handle *) buf);
+}
+
+static boolean
+wayland_display_export_buffer(struct native_display *ndpy,
+                              struct pipe_resource *res,
+                              void *buf)
+{
+   return ndpy->screen->resource_get_handle(ndpy->screen,
+         res, (struct winsys_handle *) buf);
+}
+
+static struct native_display_buffer wayland_display_buffer = {
+   wayland_display_import_buffer,
+   wayland_display_export_buffer
+};
+
+static struct native_display *
+wayland_display_create(void *dpy, boolean use_sw, void *user_data)
+{
+   struct wayland_display *display;
+
+   display = CALLOC_STRUCT(wayland_display);
+   if (!display)
+      return NULL;
+
+   display->base.user_data = user_data;
+
+   display->dpy = dpy;
+   if (!display->dpy->display) {
+      wayland_display_destroy(&display->base);
+      return NULL;
+   }
+
+   if (!wayland_display_init_screen(&display->base)) {
+      wayland_display_destroy(&display->base);
+      return NULL;
+   }
+
+   display->base.destroy = wayland_display_destroy;
+   display->base.get_param = wayland_display_get_param;
+   display->base.get_configs = wayland_display_get_configs;
+   display->base.is_pixmap_supported = wayland_display_is_pixmap_supported;
+   display->base.create_window_surface = wayland_create_window_surface;
+   display->base.create_pixmap_surface = wayland_create_pixmap_surface;
+   display->base.buffer = &wayland_display_buffer;
+
+   return &display->base;
+}
+
+static const struct native_platform wayland_platform = {
+   "wayland", /* name */
+   wayland_set_event_handler,
+   wayland_display_create
+};
+
+const struct native_platform *
+native_get_wayland_platform(void)
+{
+   return &wayland_platform;
+}
diff --git a/src/gallium/state_trackers/egl/wayland/native_wayland.h b/src/gallium/state_trackers/egl/wayland/native_wayland.h
new file mode 100644
index 00000000000..8790f26aabd
--- /dev/null
+++ b/src/gallium/state_trackers/egl/wayland/native_wayland.h
@@ -0,0 +1,96 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.11
+ *
+ * Copyright (C) 2011 Benjamin Franzke <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _NATIVE_WAYLAND_H_
+#define _NATIVE_WAYLAND_H_
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_format.h"
+
+#include "common/native.h"
+#include "common/native_helper.h"
+
+#include "wayland-egl-priv.h"
+
+struct wayland_display {
+   struct native_display base;
+
+   struct wayland_config *config;
+   struct wl_egl_display *dpy;
+};
+
+enum wayland_buffer_type {
+   WL_BUFFER_FRONT,
+   WL_BUFFER_BACK,
+   WL_BUFFER_COUNT
+};
+
+enum wayland_surface_type {
+   WL_WINDOW_SURFACE,
+   WL_PIXMAP_SURFACE,
+   WL_PBUFFER_SURFACE
+};
+
+struct wayland_surface {
+   struct native_surface base;
+   struct wayland_display *display;
+
+   struct wl_egl_window *win;
+   struct wl_egl_pixmap *pix;
+   enum wayland_surface_type type;
+   int dx, dy;
+   struct resource_surface *rsurf;
+   enum pipe_format color_format;
+
+   unsigned int sequence_number;
+   struct wl_buffer *buffer[WL_BUFFER_COUNT];
+   unsigned int attachment_mask;
+
+   boolean block_swap_buffers;
+};
+
+struct wayland_config {
+    struct native_config base;
+};
+
+static INLINE struct wayland_display *
+wayland_display(const struct native_display *ndpy)
+{
+   return (struct wayland_display *) ndpy;
+}
+
+static INLINE struct wayland_surface *
+wayland_surface(const struct native_surface *nsurf)
+{
+   return (struct wayland_surface *) nsurf;
+}
+
+static INLINE struct wayland_config *
+wayland_config(const struct native_config *nconf)
+{
+   return (struct wayland_config *) nconf;
+}
+
+#endif /* _NATIVE_WAYLAND_H_ */