wayland: Don't rely on static variable for identifying wl_drm buffers
[mesa.git] / src / egl / wayland / wayland-drm / wayland-drm.c
index 82ca6aa9017675ecee71712ff858012355016aef..7b614b71b5cd92f377d6086544470723787a4247 100644 (file)
 #include <stdlib.h>
 #include <string.h>
 #include <stddef.h>
+#include <unistd.h>
 
 #include <wayland-server.h>
 #include "wayland-drm.h"
 #include "wayland-drm-server-protocol.h"
 
+#define MIN(x,y) (((x)<(y))?(x):(y))
+
 struct wl_drm {
        struct wl_display *display;
 
        void *user_data;
        char *device_name;
+        uint32_t flags;
 
        struct wayland_drm_callbacks *callbacks;
-};
-
-struct wl_drm_buffer {
-       struct wl_buffer buffer;
-       struct wl_drm *drm;
-       uint32_t format;
 
-       void *driver_buffer;
+        struct wl_buffer_interface buffer_interface;
 };
 
-static void
-buffer_damage(struct wl_client *client, struct wl_resource *buffer,
-             int32_t x, int32_t y, int32_t width, int32_t height)
-{
-}
-
 static void
 destroy_buffer(struct wl_resource *resource)
 {
        struct wl_drm_buffer *buffer = resource->data;
        struct wl_drm *drm = buffer->drm;
 
-       drm->callbacks->release_buffer(drm->user_data,
-                                      buffer->driver_buffer);
+       drm->callbacks->release_buffer(drm->user_data, buffer);
        free(buffer);
 }
 
 static void
 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
 {
-       wl_resource_destroy(resource, 0);
+       wl_resource_destroy(resource);
 }
 
-const static struct wl_buffer_interface drm_buffer_interface = {
-       buffer_damage,
-       buffer_destroy
-};
-
 static void
-drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
-                 uint32_t id, uint32_t name, int32_t width, int32_t height,
-                 uint32_t stride, uint32_t format)
+create_buffer(struct wl_client *client, struct wl_resource *resource,
+              uint32_t id, uint32_t name, int fd,
+              int32_t width, int32_t height,
+              uint32_t format,
+              int32_t offset0, int32_t stride0,
+              int32_t offset1, int32_t stride1,
+              int32_t offset2, int32_t stride2)
 {
        struct wl_drm *drm = resource->data;
        struct wl_drm_buffer *buffer;
 
-       switch (format) {
-       case WL_DRM_FORMAT_ARGB32:
-       case WL_DRM_FORMAT_PREMULTIPLIED_ARGB32:
-       case WL_DRM_FORMAT_XRGB32:
-               break;
-       default:
-               wl_resource_post_error(resource,
-                                      WL_DRM_ERROR_INVALID_FORMAT,
-                                      "invalid format");
-               return;
-       }
-
        buffer = calloc(1, sizeof *buffer);
        if (buffer == NULL) {
                wl_resource_post_no_memory(resource);
@@ -108,15 +86,17 @@ drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
        }
 
        buffer->drm = drm;
-       buffer->buffer.width = width;
-       buffer->buffer.height = height;
+       buffer->width = width;
+       buffer->height = height;
        buffer->format = format;
-
-       buffer->driver_buffer =
-               drm->callbacks->reference_buffer(drm->user_data, name,
-                                                width, height,
-                                                stride, format);
-
+       buffer->offset[0] = offset0;
+       buffer->stride[0] = stride0;
+       buffer->offset[1] = offset1;
+       buffer->stride[1] = stride1;
+       buffer->offset[2] = offset2;
+       buffer->stride[2] = stride2;
+
+        drm->callbacks->reference_buffer(drm->user_data, name, fd, buffer);
        if (buffer->driver_buffer == NULL) {
                wl_resource_post_error(resource,
                                       WL_DRM_ERROR_INVALID_NAME,
@@ -124,16 +104,81 @@ drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
                return;
        }
 
-       buffer->buffer.resource.object.id = id;
-       buffer->buffer.resource.object.interface = &wl_buffer_interface;
-       buffer->buffer.resource.object.implementation =
-               (void (**)(void)) &drm_buffer_interface;
-       buffer->buffer.resource.data = buffer;
+       buffer->resource =
+               wl_resource_create(client, &wl_buffer_interface, 1, id);
+       if (!buffer->resource) {
+               wl_resource_post_no_memory(resource);
+               free(buffer);
+               return;
+       }
 
-       buffer->buffer.resource.destroy = destroy_buffer;
-       buffer->buffer.resource.client = resource->client;
+       wl_resource_set_implementation(buffer->resource,
+                                      (void (**)(void)) &drm->buffer_interface,
+                                      buffer, destroy_buffer);
+}
 
-       wl_client_add_resource(resource->client, &buffer->buffer.resource);
+static void
+drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
+                 uint32_t id, uint32_t name, int32_t width, int32_t height,
+                 uint32_t stride, uint32_t format)
+{
+        switch (format) {
+        case WL_DRM_FORMAT_ARGB8888:
+        case WL_DRM_FORMAT_XRGB8888:
+        case WL_DRM_FORMAT_YUYV:
+                break;
+        default:
+                wl_resource_post_error(resource,
+                                       WL_DRM_ERROR_INVALID_FORMAT,
+                                       "invalid format");
+           return;
+        }
+
+        create_buffer(client, resource, id,
+                      name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
+}
+
+static void
+drm_create_planar_buffer(struct wl_client *client,
+                         struct wl_resource *resource,
+                         uint32_t id, uint32_t name,
+                         int32_t width, int32_t height, uint32_t format,
+                         int32_t offset0, int32_t stride0,
+                         int32_t offset1, int32_t stride1,
+                         int32_t offset2, int32_t stride2)
+{
+        switch (format) {
+       case WL_DRM_FORMAT_YUV410:
+       case WL_DRM_FORMAT_YUV411:
+       case WL_DRM_FORMAT_YUV420:
+       case WL_DRM_FORMAT_YUV422:
+       case WL_DRM_FORMAT_YUV444:
+       case WL_DRM_FORMAT_NV12:
+        case WL_DRM_FORMAT_NV16:
+                break;
+        default:
+                wl_resource_post_error(resource,
+                                       WL_DRM_ERROR_INVALID_FORMAT,
+                                       "invalid format");
+           return;
+        }
+
+        create_buffer(client, resource, id, name, -1, width, height, format,
+                      offset0, stride0, offset1, stride1, offset2, stride2);
+}
+
+static void
+drm_create_prime_buffer(struct wl_client *client,
+                        struct wl_resource *resource,
+                        uint32_t id, int fd,
+                        int32_t width, int32_t height, uint32_t format,
+                        int32_t offset0, int32_t stride0,
+                        int32_t offset1, int32_t stride1,
+                        int32_t offset2, int32_t stride2)
+{
+        create_buffer(client, resource, id, 0, fd, width, height, format,
+                      offset0, stride0, offset1, stride1, offset2, stride2);
+        close(fd);
 }
 
 static void
@@ -152,7 +197,9 @@ drm_authenticate(struct wl_client *client,
 
 const static struct wl_drm_interface drm_interface = {
        drm_authenticate,
-       drm_create_buffer
+       drm_create_buffer,
+        drm_create_planar_buffer,
+        drm_create_prime_buffer
 };
 
 static void
@@ -160,19 +207,58 @@ bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
 {
        struct wl_drm *drm = data;
        struct wl_resource *resource;
+        uint32_t capabilities;
+
+       resource = wl_resource_create(client, &wl_drm_interface,
+                                     MIN(version, 2), id);
+       if (!resource) {
+               wl_client_post_no_memory(client);
+               return;
+       }
+
+       wl_resource_set_implementation(resource, &drm_interface, data, NULL);
 
-       resource = wl_client_add_object(client, &wl_drm_interface,
-                                       &drm_interface, id, data);
        wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
-       wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_ARGB32);
        wl_resource_post_event(resource, WL_DRM_FORMAT,
-                              WL_DRM_FORMAT_PREMULTIPLIED_ARGB32);
-       wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_XRGB32);
+                              WL_DRM_FORMAT_ARGB8888);
+       wl_resource_post_event(resource, WL_DRM_FORMAT,
+                              WL_DRM_FORMAT_XRGB8888);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
+        wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
+
+        capabilities = 0;
+        if (drm->flags & WAYLAND_DRM_PRIME)
+           capabilities |= WL_DRM_CAPABILITY_PRIME;
+
+        if (version >= 2)
+           wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
+}
+
+struct wl_drm_buffer *
+wayland_drm_buffer_get(struct wl_drm *drm, struct wl_resource *resource)
+{
+       struct wl_drm_buffer *buffer;
+
+       if (resource == NULL)
+               return NULL;
+
+        if (wl_resource_instance_of(resource, &wl_buffer_interface,
+                                    &drm->buffer_interface))
+               return wl_resource_get_user_data(resource);
+        else
+               return NULL;
 }
 
 struct wl_drm *
 wayland_drm_init(struct wl_display *display, char *device_name,
-                 struct wayland_drm_callbacks *callbacks, void *user_data)
+                 struct wayland_drm_callbacks *callbacks, void *user_data,
+                 uint32_t flags)
 {
        struct wl_drm *drm;
 
@@ -182,8 +268,11 @@ wayland_drm_init(struct wl_display *display, char *device_name,
        drm->device_name = strdup(device_name);
        drm->callbacks = callbacks;
        drm->user_data = user_data;
+        drm->flags = flags;
+
+        drm->buffer_interface.destroy = buffer_destroy;
 
-       wl_display_add_global(display, &wl_drm_interface, drm, bind_drm);
+       wl_global_create(display, &wl_drm_interface, 2, drm, bind_drm);
 
        return drm;
 }
@@ -198,17 +287,14 @@ wayland_drm_uninit(struct wl_drm *drm)
        free(drm);
 }
 
-int
-wayland_buffer_is_drm(struct wl_buffer *buffer)
+uint32_t
+wayland_drm_buffer_get_format(struct wl_drm_buffer *buffer)
 {
-       return buffer->resource.object.implementation == 
-               (void (**)(void)) &drm_buffer_interface;
+       return buffer->format;
 }
 
 void *
-wayland_drm_buffer_get_buffer(struct wl_buffer *buffer_base)
+wayland_drm_buffer_get_buffer(struct wl_drm_buffer *buffer)
 {
-       struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) buffer_base;
-
        return buffer->driver_buffer;
 }