nouveau: Factor out common winsys bits into libnouveaudrm.a

[mesa.git] / src / gallium / winsys / g3dvl / nouveau / nouveau_screen_vl.c

diff --git a/src/gallium/winsys/g3dvl/nouveau/nouveau_screen_vl.c b/src/gallium/winsys/g3dvl/nouveau/nouveau_screen_vl.c
new file mode 100644 (file)
index 0000000..658dafd
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/nouveau/nouveau_screen_vl.c
@@ -0,0 +1,88 @@
+#include "nouveau_screen_vl.h"
+#include <util/u_memory.h>
+#include <nouveau_drm.h>
+#include <common/nouveau_dri.h>
+#include <common/nouveau_local.h>
+
+#if NOUVEAU_DRM_HEADER_PATCHLEVEL != 11
+#error nouveau_drm.h version does not match expected version
+#endif
+
+/*
+PUBLIC const char __driConfigOptions[] =
+DRI_CONF_BEGIN
+DRI_CONF_END;
+static const GLuint __driNConfigOptions = 0;
+*/
+
+int nouveau_check_dri_drm_ddx(dri_version_t *dri, dri_version_t *drm, dri_version_t *ddx)
+{
+       static const dri_version_t ddx_expected = {0, 0, NOUVEAU_DRM_HEADER_PATCHLEVEL};
+       static const dri_version_t dri_expected = {4, 0, 0};
+       static const dri_version_t drm_expected = {0, 0, NOUVEAU_DRM_HEADER_PATCHLEVEL};
+
+       assert(dri);
+       assert(drm);
+       assert(ddx);
+
+       if (dri->major != dri_expected.major || dri->minor < dri_expected.minor)
+       {
+               NOUVEAU_ERR("Unexpected DRI version.\n");
+               return 1;
+       }
+       if (drm->major != drm_expected.major || drm->minor < drm_expected.minor)
+       {
+               NOUVEAU_ERR("Unexpected DRM version.\n");
+               return 1;
+       }
+       if (ddx->major != ddx_expected.major || ddx->minor < ddx_expected.minor)
+       {
+               NOUVEAU_ERR("Unexpected DDX version.\n");
+               return 1;
+       }
+
+       return 0;
+}
+
+int
+nouveau_screen_create(dri_screen_t *dri_screen, dri_framebuffer_t *dri_framebuf)
+{
+       struct nouveau_dri              *nv_dri = dri_framebuf->private;
+       struct nouveau_screen_vl        *nv_screen;
+
+       assert(dri_screen);
+       assert(dri_framebuf);
+
+       if (nouveau_check_dri_drm_ddx(&dri_screen->dri, &dri_screen->drm, &dri_screen->ddx))
+               return 1;
+
+       nv_screen = CALLOC_STRUCT(nouveau_screen_vl);
+
+       if (!nv_screen)
+               return 1;
+
+       if (nouveau_screen_init(nv_dri, dri_screen->fd, &nv_screen->base))
+       {
+               FREE(nv_screen);
+               return 1;
+       }
+
+       /*
+       driParseOptionInfo(&nv_screen->option_cache,
+                          __driConfigOptions, __driNConfigOptions);
+       */
+
+       nv_screen->dri_screen = dri_screen;
+       dri_screen->private = (void*)nv_screen;
+
+       return 0;
+}
+
+void
+nouveau_screen_destroy(dri_screen_t *dri_screen)
+{
+       struct nouveau_screen_vl *nv_screen = dri_screen->private;
+
+       nouveau_screen_cleanup(&nv_screen->base);
+       FREE(nv_screen);
+}