1 files changed, 170 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/r600/core/r600_drm.c b/src/gallium/winsys/drm/r600/core/r600_drm.c
new file mode 100644
index 0000000000..028f443944
--- /dev/null
+++ b/src/gallium/winsys/drm/r600/core/r600_drm.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors:
+ *      Jerome Glisse
+ *      Corbin Simpson <MostAwesomeDude@gmail.com>
+ *      Joakim Sindholt <opensource@zhasha.com>
+ */
+#include <sys/ioctl.h>
+#include "trace/tr_drm.h"
+#include "util/u_inlines.h"
+#include "util/u_debug.h"
+#include "state_tracker/drm_api.h"
+#include "radeon_priv.h"
+#include "r600_screen.h"
+#include "r600_texture.h"
+
+static struct pipe_screen *r600_drm_create_screen(struct drm_api* api, int drmfd,
+					struct drm_create_screen_arg *arg)
+{
+	struct radeon *rw = radeon_new(drmfd, 0);
+
+	if (rw == NULL)
+		return NULL;
+	return radeon_create_screen(rw);
+}
+
+static boolean r600_buffer_from_texture(struct drm_api *api,
+				struct pipe_screen *screen,
+				struct pipe_texture *texture,
+				struct pipe_buffer **buffer,
+				unsigned *stride)
+{
+	return r600_get_texture_buffer(screen, texture, buffer, stride);
+}
+
+static struct pipe_buffer *r600_buffer_from_handle(struct drm_api *api,
+						struct pipe_screen *screen,
+						const char *name,
+						unsigned handle)
+{
+	struct radeon *rw = (struct radeon*)screen->winsys;
+	struct r600_pipe_buffer *rbuffer;
+	struct radeon_bo *bo = NULL;
+
+	bo = radeon_bo(rw, handle, 0, 0, NULL);
+	if (bo == NULL) {
+		return NULL;
+	}
+
+	rbuffer = calloc(1, sizeof(struct r600_pipe_buffer));
+	if (rbuffer == NULL) {
+		radeon_bo_decref(rw, bo);
+		return NULL;
+	}
+
+	pipe_reference_init(&rbuffer->base.reference, 1);
+	rbuffer->base.screen = screen;
+	rbuffer->base.usage = PIPE_BUFFER_USAGE_PIXEL;
+	rbuffer->bo = bo;
+	return &rbuffer->base;
+}
+
+static struct pipe_texture *r600_texture_from_shared_handle(struct drm_api *api,
+						struct pipe_screen *screen,
+						struct pipe_texture *templ,
+						const char *name,
+						unsigned stride,
+						unsigned handle)
+{
+	struct pipe_buffer *buffer;
+	struct pipe_texture *blanket;
+
+
+	buffer = r600_buffer_from_handle(api, screen, name, handle);
+	if (buffer == NULL) {
+		return NULL;
+	}
+	blanket = screen->texture_blanket(screen, templ, &stride, buffer);
+	pipe_buffer_reference(&buffer, NULL);
+	return blanket;
+}
+
+static boolean r600_shared_handle_from_texture(struct drm_api *api,
+						struct pipe_screen *screen,
+						struct pipe_texture *texture,
+						unsigned *stride,
+						unsigned *handle)
+{
+	struct radeon *rw = (struct radeon*)screen->winsys;
+	struct drm_gem_flink flink;
+	struct r600_pipe_buffer* rbuffer;
+	struct pipe_buffer *buffer = NULL;
+	int r;
+
+	if (!r600_buffer_from_texture(api, screen, texture, &buffer, stride)) {
+		return FALSE;
+	}
+
+	rbuffer = (struct r600_pipe_buffer*)buffer;
+	if (!rbuffer->flink) {
+		flink.handle = rbuffer->bo->handle;
+		r = ioctl(rw->fd, DRM_IOCTL_GEM_FLINK, &flink);
+		if (r) {
+			return FALSE;
+		}
+		rbuffer->flink = flink.name;
+	}
+	*handle = rbuffer->flink;
+	return TRUE;
+}
+
+static boolean r600_local_handle_from_texture(struct drm_api *api,
+						struct pipe_screen *screen,
+						struct pipe_texture *texture,
+						unsigned *stride,
+						unsigned *handle)
+{
+	struct pipe_buffer *buffer = NULL;
+
+	if (!r600_buffer_from_texture(api, screen, texture, &buffer, stride)) {
+		return FALSE;
+	}
+	*handle = ((struct r600_pipe_buffer*)buffer)->bo->handle;
+	pipe_buffer_reference(&buffer, NULL);
+	return TRUE;
+}
+
+static void r600_drm_api_destroy(struct drm_api *api)
+{
+	return;
+}
+
+struct drm_api drm_api_hooks = {
+	.name = "r600",
+	.driver_name = "r600",
+	.create_screen = r600_drm_create_screen,
+	.texture_from_shared_handle = r600_texture_from_shared_handle,
+	.shared_handle_from_texture = r600_shared_handle_from_texture,
+	.local_handle_from_texture = r600_local_handle_from_texture,
+	.destroy = r600_drm_api_destroy,
+};
+
+struct drm_api* drm_api_create()
+{
+#ifdef DEBUG
+	return trace_drm_create(&drm_api_hooks);
+#else
+	return &drm_api_hooks;
+#endif
+}