Import a classic DRI driver for nv0x-nv2x.

1 files changed, 81 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_surface.c b/src/mesa/drivers/dri/nouveau/nouveau_surface.c
new file mode 100644
index 0000000000..33393970a0
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_surface.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * 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 (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 NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS 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.
+ *
+ */
+
+#include "nouveau_driver.h"
+#include "nouveau_context.h"
+#include "nouveau_util.h"
+
+void
+nouveau_surface_alloc(GLcontext *ctx, struct nouveau_surface *s,
+		      enum nouveau_surface_layout layout,
+		      unsigned flags, unsigned format,
+		      unsigned width, unsigned height)
+{
+	unsigned tile_mode, cpp = _mesa_get_format_bytes(format);
+	int ret;
+
+	nouveau_bo_ref(NULL, &s->bo);
+
+	*s = (struct nouveau_surface) {
+		.layout = layout,
+		.format = format,
+		.width = width,
+		.height = height,
+		.cpp = cpp,
+		.pitch = width * cpp,
+	};
+
+	if (layout == TILED) {
+		s->pitch = align(s->pitch, 256);
+		tile_mode = s->pitch;
+	} else {
+		s->pitch = align(s->pitch, 64);
+		tile_mode = 0;
+	}
+
+	ret = nouveau_bo_new_tile(context_dev(ctx), flags, 0, s->pitch * height,
+				  tile_mode, 0, &s->bo);
+	assert(!ret);
+}
+
+void
+nouveau_surface_ref(struct nouveau_surface *src,
+		    struct nouveau_surface *dst)
+{
+	if (src) {
+		dst->offset = src->offset;
+		dst->layout = src->layout;
+		dst->format = src->format;
+		dst->width = src->width;
+		dst->height = src->height;
+		dst->cpp = src->cpp;
+		dst->pitch = src->pitch;
+		nouveau_bo_ref(src->bo, &dst->bo);
+
+	} else {
+		nouveau_bo_ref(NULL, &dst->bo);
+	}
+}