1 files changed, 109 insertions, 0 deletions
diff --git a/src/gallium/winsys/i915/drm/intel_drm_api.c b/src/gallium/winsys/i915/drm/intel_drm_api.c
new file mode 100644
index 00000000000..e3b980a832b
--- /dev/null
+++ b/src/gallium/winsys/i915/drm/intel_drm_api.c
@@ -0,0 +1,109 @@
+#include <stdio.h>
+
+#include "state_tracker/drm_api.h"
+
+#include "intel_drm_winsys.h"
+#include "util/u_memory.h"
+
+#include "i915/i915_context.h"
+#include "i915/i915_screen.h"
+
+#include "trace/tr_drm.h"
+
+/*
+ * Helper functions
+ */
+
+
+static void
+intel_drm_get_device_id(unsigned int *device_id)
+{
+   char path[512];
+   FILE *file;
+   void *shutup_gcc;
+
+   /*
+    * FIXME: Fix this up to use a drm ioctl or whatever.
+    */
+
+   snprintf(path, sizeof(path), "/sys/class/drm/card0/device/device");
+   file = fopen(path, "r");
+   if (!file) {
+      return;
+   }
+
+   shutup_gcc = fgets(path, sizeof(path), file);
+   (void) shutup_gcc;
+   sscanf(path, "%x", device_id);
+   fclose(file);
+}
+
+static void
+intel_drm_winsys_destroy(struct intel_winsys *iws)
+{
+   struct intel_drm_winsys *idws = intel_drm_winsys(iws);
+
+   drm_intel_bufmgr_destroy(idws->pools.gem);
+
+   FREE(idws);
+}
+
+static struct pipe_screen *
+intel_drm_create_screen(struct drm_api *api, int drmFD,
+                        struct drm_create_screen_arg *arg)
+{
+   struct intel_drm_winsys *idws;
+   unsigned int deviceID;
+
+   if (arg != NULL) {
+      switch(arg->mode) {
+      case DRM_CREATE_NORMAL:
+         break;
+      default:
+         return NULL;
+      }
+   }
+
+   idws = CALLOC_STRUCT(intel_drm_winsys);
+   if (!idws)
+      return NULL;
+
+   intel_drm_get_device_id(&deviceID);
+
+   intel_drm_winsys_init_batchbuffer_functions(idws);
+   intel_drm_winsys_init_buffer_functions(idws);
+   intel_drm_winsys_init_fence_functions(idws);
+
+   idws->fd = drmFD;
+   idws->id = deviceID;
+   idws->max_batch_size = 16 * 4096;
+
+   idws->base.destroy = intel_drm_winsys_destroy;
+
+   idws->pools.gem = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
+   drm_intel_bufmgr_gem_enable_reuse(idws->pools.gem);
+
+   idws->dump_cmd = debug_get_bool_option("INTEL_DUMP_CMD", FALSE);
+
+   return i915_create_screen(&idws->base, deviceID);
+}
+
+static void
+destroy(struct drm_api *api)
+{
+
+}
+
+struct drm_api intel_drm_api =
+{
+   .name = "i915",
+   .driver_name = "i915",
+   .create_screen = intel_drm_create_screen,
+   .destroy = destroy,
+};
+
+struct drm_api *
+drm_api_create()
+{
+   return trace_drm_create(&intel_drm_api);
+}